@font-face{font-family:Pretendard;font-weight:900;font-display:swap;src:local(Pretendard Black),url(../media/Pretendard-Black.0kfpc1pbpksnt.woff2)format("woff2"),url(../media/Pretendard-Black.02hni1lw3_k98.woff)format("woff")}@font-face{font-family:Pretendard;font-weight:800;font-display:swap;src:local(Pretendard ExtraBold),url(../media/Pretendard-ExtraBold.3v4yed8t6hf9p.woff2)format("woff2"),url(../media/Pretendard-ExtraBold.28g7g9tc64wgk.woff)format("woff")}@font-face{font-family:Pretendard;font-weight:700;font-display:swap;src:local(Pretendard Bold),url(../media/Pretendard-Bold.177o-ap6kz_9v.woff2)format("woff2"),url(../media/Pretendard-Bold.0zc344h9ksk37.woff)format("woff")}@font-face{font-family:Pretendard;font-weight:600;font-display:swap;src:local(Pretendard SemiBold),url(../media/Pretendard-SemiBold.0xd7ax18syr9o.woff2)format("woff2"),url(../media/Pretendard-SemiBold.18j7deucor3pc.woff)format("woff")}@font-face{font-family:Pretendard;font-weight:500;font-display:swap;src:local(Pretendard Medium),url(../media/Pretendard-Medium.0emjoejheep8i.woff2)format("woff2"),url(../media/Pretendard-Medium.3nn03-2zz9my4.woff)format("woff")}@font-face{font-family:Pretendard;font-weight:400;font-display:swap;src:local(Pretendard Regular),url(../media/Pretendard-Regular.0p64717aulibp.woff2)format("woff2"),url(../media/Pretendard-Regular.22h2kx3gi--cr.woff)format("woff")}@font-face{font-family:Pretendard;font-weight:300;font-display:swap;src:local(Pretendard Light),url(../media/Pretendard-Light.1peus8isg6v9f.woff2)format("woff2"),url(../media/Pretendard-Light.2e8wknezeb8zw.woff)format("woff")}@font-face{font-family:Pretendard;font-weight:200;font-display:swap;src:local(Pretendard ExtraLight),url(../media/Pretendard-ExtraLight.23jyjk5ws85z7.woff2)format("woff2"),url(../media/Pretendard-ExtraLight.0ogjvfn1sh_p9.woff)format("woff")}@font-face{font-family:Pretendard;font-weight:100;font-display:swap;src:local(Pretendard Thin),url(../media/Pretendard-Thin.2b5kda_zm579x.woff2)format("woff2"),url(../media/Pretendard-Thin.2axjrnjfba_-0.woff)format("woff")}
@font-face{font-family:JetBrains Mono;font-style:normal;font-display:swap;font-weight:400;src:url(../media/jetbrains-mono-cyrillic-ext-400-normal.3llip5gdtq6ee.woff2)format("woff2"),url(../media/jetbrains-mono-cyrillic-ext-400-normal.37cpwuas_4tpy.woff)format("woff");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:JetBrains Mono;font-style:normal;font-display:swap;font-weight:400;src:url(../media/jetbrains-mono-cyrillic-400-normal.123gmka-u-660.woff2)format("woff2"),url(../media/jetbrains-mono-cyrillic-400-normal.2qqi-jaq060ud.woff)format("woff");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:JetBrains Mono;font-style:normal;font-display:swap;font-weight:400;src:url(../media/jetbrains-mono-greek-400-normal.11tra_3r8gne-.woff2)format("woff2"),url(../media/jetbrains-mono-greek-400-normal.18cfsy-6ft9zs.woff)format("woff");unicode-range:U+370-377,U+37A-37F,U+384-38A,U+38C,U+38E-3A1,U+3A3-3FF}@font-face{font-family:JetBrains Mono;font-style:normal;font-display:swap;font-weight:400;src:url(../media/jetbrains-mono-vietnamese-400-normal.0l8l0wb2sbqrm.woff2)format("woff2"),url(../media/jetbrains-mono-vietnamese-400-normal.0c64nmg3blt24.woff)format("woff");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:JetBrains Mono;font-style:normal;font-display:swap;font-weight:400;src:url(../media/jetbrains-mono-latin-ext-400-normal.2osyrgmzpqw_0.woff2)format("woff2"),url(../media/jetbrains-mono-latin-ext-400-normal.3vtl6hswl5p-t.woff)format("woff");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:JetBrains Mono;font-style:normal;font-display:swap;font-weight:400;src:url(../media/jetbrains-mono-latin-400-normal.37baup9wa8gsy.woff2)format("woff2"),url(../media/jetbrains-mono-latin-400-normal.27_azdahucoj5.woff)format("woff");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:JetBrains Mono;font-style:normal;font-display:swap;font-weight:600;src:url(../media/jetbrains-mono-cyrillic-ext-600-normal.0s-11c014saiw.woff2)format("woff2"),url(../media/jetbrains-mono-cyrillic-ext-600-normal.1w1uhhh3ul073.woff)format("woff");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:JetBrains Mono;font-style:normal;font-display:swap;font-weight:600;src:url(../media/jetbrains-mono-cyrillic-600-normal.2z4x6edaoy0sz.woff2)format("woff2"),url(../media/jetbrains-mono-cyrillic-600-normal.2_1-gmmupjeb_.woff)format("woff");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:JetBrains Mono;font-style:normal;font-display:swap;font-weight:600;src:url(../media/jetbrains-mono-greek-600-normal.10f2g22cp_fuv.woff2)format("woff2"),url(../media/jetbrains-mono-greek-600-normal.12z3f-75d4aru.woff)format("woff");unicode-range:U+370-377,U+37A-37F,U+384-38A,U+38C,U+38E-3A1,U+3A3-3FF}@font-face{font-family:JetBrains Mono;font-style:normal;font-display:swap;font-weight:600;src:url(../media/jetbrains-mono-vietnamese-600-normal.28quglew0i4u3.woff2)format("woff2"),url(../media/jetbrains-mono-vietnamese-600-normal.43ewxb_h57pv0.woff)format("woff");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:JetBrains Mono;font-style:normal;font-display:swap;font-weight:600;src:url(../media/jetbrains-mono-latin-ext-600-normal.1gqncni576t-6.woff2)format("woff2"),url(../media/jetbrains-mono-latin-ext-600-normal.0ejdy3rgmpr3b.woff)format("woff");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:JetBrains Mono;font-style:normal;font-display:swap;font-weight:600;src:url(../media/jetbrains-mono-latin-600-normal.385rh3vwo0nrf.woff2)format("woff2"),url(../media/jetbrains-mono-latin-600-normal.42m-uipu7zebz.woff)format("woff");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after,::backdrop{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-border-style:solid;--tw-ordinal:initial;--tw-slashed-zero:initial;--tw-numeric-figure:initial;--tw-numeric-spacing:initial;--tw-numeric-fraction:initial;--tw-shadow:0 0 #0000;--tw-shadow-color:initial;--tw-shadow-alpha:100%;--tw-inset-shadow:0 0 #0000;--tw-inset-shadow-color:initial;--tw-inset-shadow-alpha:100%;--tw-ring-color:initial;--tw-ring-shadow:0 0 #0000;--tw-inset-ring-color:initial;--tw-inset-ring-shadow:0 0 #0000;--tw-ring-inset:initial;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-offset-shadow:0 0 #0000;--tw-outline-style:solid;--tw-blur:initial;--tw-brightness:initial;--tw-contrast:initial;--tw-grayscale:initial;--tw-hue-rotate:initial;--tw-invert:initial;--tw-opacity:initial;--tw-saturate:initial;--tw-sepia:initial;--tw-drop-shadow:initial;--tw-drop-shadow-color:initial;--tw-drop-shadow-alpha:100%;--tw-drop-shadow-size:initial;--tw-backdrop-blur:initial;--tw-backdrop-brightness:initial;--tw-backdrop-contrast:initial;--tw-backdrop-grayscale:initial;--tw-backdrop-hue-rotate:initial;--tw-backdrop-invert:initial;--tw-backdrop-opacity:initial;--tw-backdrop-saturate:initial;--tw-backdrop-sepia:initial}}}@layer theme{:root,:host{--font-sans:"Pretendard",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--font-serif:ui-serif, Georgia, Cambria, "Times New Roman", Times, serif;--font-mono:"JetBrains Mono",monospace;--radius-2xl:1rem;--default-transition-duration:.15s;--default-transition-timing-function:cubic-bezier(.4, 0, .2, 1);--default-font-family:"Pretendard",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--default-mono-font-family:"JetBrains Mono",monospace}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring:where(:not(iframe)){outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.pointer-events-none{pointer-events:none}.collapse{visibility:collapse}.invisible{visibility:hidden}.visible{visibility:visible}.sr-only{clip-path:inset(50%);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.absolute{position:absolute}.fixed{position:fixed}.relative{position:relative}.static{position:static}.sticky{position:sticky}.isolate{isolation:isolate}.container{width:100%}@media (min-width:40rem){.container{max-width:40rem}}@media (min-width:48rem){.container{max-width:48rem}}@media (min-width:64rem){.container{max-width:64rem}}@media (min-width:80rem){.container{max-width:80rem}}@media (min-width:96rem){.container{max-width:96rem}}.block{display:block}.contents{display:contents}.flex{display:flex}.grid{display:grid}.hidden{display:none}.inline{display:inline}.table{display:table}.table-row{display:table-row}.flex-shrink,.shrink{flex-shrink:1}.grow{flex-grow:1}.transform{transform:var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,)}.flex-wrap{flex-wrap:wrap}.truncate{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.rounded{border-radius:.25rem}.rounded-2xl{border-radius:var(--radius-2xl)}.border{border-style:var(--tw-border-style);border-width:1px}.text-wrap{text-wrap:wrap}.capitalize{text-transform:capitalize}.lowercase{text-transform:lowercase}.uppercase{text-transform:uppercase}.italic{font-style:italic}.ordinal{--tw-ordinal:ordinal;font-variant-numeric:var(--tw-ordinal,) var(--tw-slashed-zero,) var(--tw-numeric-figure,) var(--tw-numeric-spacing,) var(--tw-numeric-fraction,)}.tabular-nums{--tw-numeric-spacing:tabular-nums;font-variant-numeric:var(--tw-ordinal,) var(--tw-slashed-zero,) var(--tw-numeric-figure,) var(--tw-numeric-spacing,) var(--tw-numeric-fraction,)}.underline{text-decoration-line:underline}.shadow{--tw-shadow:0 1px 3px 0 var(--tw-shadow-color,#0000001a), 0 1px 2px -1px var(--tw-shadow-color,#0000001a);box-shadow:var(--tw-inset-shadow), var(--tw-inset-ring-shadow), var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow)}.ring{--tw-ring-shadow:var(--tw-ring-inset,) 0 0 0 calc(1px + var(--tw-ring-offset-width)) var(--tw-ring-color,currentcolor);box-shadow:var(--tw-inset-shadow), var(--tw-inset-ring-shadow), var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow)}.outline{outline-style:var(--tw-outline-style);outline-width:1px}.blur{--tw-blur:blur(8px);filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}.grayscale{--tw-grayscale:grayscale(100%);filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}.invert{--tw-invert:invert(100%);filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}.filter{filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}.backdrop-filter{-webkit-backdrop-filter:var(--tw-backdrop-blur,) var(--tw-backdrop-brightness,) var(--tw-backdrop-contrast,) var(--tw-backdrop-grayscale,) var(--tw-backdrop-hue-rotate,) var(--tw-backdrop-invert,) var(--tw-backdrop-opacity,) var(--tw-backdrop-saturate,) var(--tw-backdrop-sepia,);backdrop-filter:var(--tw-backdrop-blur,) var(--tw-backdrop-brightness,) var(--tw-backdrop-contrast,) var(--tw-backdrop-grayscale,) var(--tw-backdrop-hue-rotate,) var(--tw-backdrop-invert,) var(--tw-backdrop-opacity,) var(--tw-backdrop-saturate,) var(--tw-backdrop-sepia,)}.transition{transition-property:color,background-color,border-color,outline-color,text-decoration-color,fill,stroke,--tw-gradient-from,--tw-gradient-via,--tw-gradient-to,opacity,box-shadow,transform,translate,scale,rotate,filter,-webkit-backdrop-filter,backdrop-filter,display,content-visibility,overlay,pointer-events;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}}:root{--background:#f7f6f2;--foreground:#1d1d1a;--muted:#65645e;--subtle:#929087;--border:#dedcd4;--border-strong:#b9b6ac;--surface:#f0eee8;--surface-hover:#ebe9e2;--surface-active:#e4e1d8;--code-background:#efede7;--focus-ring:#4b4a45;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}.dark{--background:#161614;--foreground:#efeee8;--muted:#aaa89f;--subtle:#7b7972;--border:#36352f;--border-strong:#5a5850;--surface:#1d1d1a;--surface-hover:#24231f;--surface-active:#2b2a25;--code-background:#1b1b18;--focus-ring:#d8d5cc;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box}html{scroll-behavior:smooth;overscroll-behavior-y:none;scroll-padding-top:100px}body{color:var(--foreground);background:var(--background);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;margin:0;font-family:Pretendard,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:16px;line-height:1.65}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button,a,input,textarea,summary{-webkit-tap-highlight-color:transparent;touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:wait;opacity:.6}button{color:inherit}::selection{background:var(--foreground);color:var(--background)}:focus-visible{outline:2px solid var(--focus-ring);outline-offset:3px}main:focus{outline:none}h1,h2,h3,p{margin:0}h1,h2,h3{word-break:keep-all;overflow-wrap:anywhere;line-height:1.3}p{word-break:keep-all;overflow-wrap:anywhere}.muted{color:var(--muted)}.meta,.eyebrow,.nav-label{color:var(--muted);font-size:12px}.eyebrow{font-weight:600}.nav-label{font-size:12px;font-weight:600}.skip-link{background:var(--foreground);color:var(--background);z-index:100;padding:10px 18px;position:fixed;top:-80px;left:16px}.skip-link:focus{top:8px}.site-header{z-index:30;background:var(--background);border-bottom:1px solid var(--border);height:64px;position:sticky;top:0}.header-inner{align-items:center;gap:38px;max-width:1440px;height:100%;margin:auto;padding:0 32px;display:flex}.brand{white-space:nowrap;letter-spacing:-.025em;align-items:center;gap:11px;font-size:14px;font-weight:750;display:flex}.brand-symbol{background:var(--foreground);width:34px;height:29px;color:var(--background);border-radius:5px;justify-content:center;align-items:center;font-family:JetBrains Mono,monospace;font-size:17px;display:flex}.brand-symbol span{letter-spacing:-2px;padding-right:2px;font-size:10px}.brand-by{color:var(--muted);letter-spacing:.04em;margin-left:4px;font-size:11px;font-weight:400}.header-nav{align-self:stretch;align-items:stretch;gap:28px;margin-left:18px;display:flex}.header-nav a{color:var(--muted);border-bottom:2px solid #0000;align-items:center;padding-top:2px;font-size:14px;display:flex}.header-nav a:hover,.header-nav .selected{color:var(--foreground)}.header-nav .selected{border-bottom-color:var(--foreground);font-weight:600}.header-actions{align-items:center;gap:13px;margin-left:auto;display:flex}.search-trigger{border:1px solid var(--border);background:var(--surface);height:34px;color:var(--muted);border-radius:6px;align-items:center;gap:10px;padding:0 10px;font-size:12px;display:flex}.search-trigger kbd{margin-left:34px}kbd{border:1px solid var(--border);border-radius:3px;padding:1px 4px;font-family:inherit;font-size:11px;line-height:1.4}.icon-button{background:0 0;border:0;border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;display:inline-flex}.icon-button:hover{background:var(--surface-hover)}.sun-icon{display:none}.dark .sun-icon{display:block}.dark .moon-icon,.mobile-only{display:none}.app-shell{grid-template-columns:248px minmax(0,1fr);max-width:1440px;margin:0 auto;transition:grid-template-columns .2s;display:grid;position:relative}.app-shell.sidebar-collapsed{grid-template-columns:0 minmax(0,1fr)}.desktop-sidebar{scrollbar-width:thin;border-right:1px solid var(--border);height:calc(100dvh - 64px);position:sticky;top:64px;overflow-y:auto}.sidebar-collapsed .desktop-sidebar{border-right:0;overflow:hidden}.sidebar-toggle-rail{z-index:20;pointer-events:none;width:30px;position:absolute;top:0;bottom:0;left:218px}.sidebar-toggle{pointer-events:auto;border:1px solid var(--border);background:var(--background);width:30px;height:34px;color:var(--muted);border-radius:0 6px 6px 0;place-items:center;margin-top:12px;display:grid;position:sticky;top:76px}.sidebar-toggle:hover{color:var(--foreground);background:var(--surface)}.sidebar-collapsed .sidebar-toggle-rail{left:0}.sidebar-content{flex-direction:column;min-height:100%;padding:32px 20px 24px;display:flex}.sidebar-section{margin-bottom:30px}.nav-label{margin:0 12px 12px;display:block}.side-link{color:var(--muted);border-radius:5px;align-items:center;gap:9px;margin:3px 0;padding:8px 11px;font-size:13px;line-height:1.55;display:flex}.side-link:hover{background:var(--surface-hover);color:var(--foreground)}.side-link.active{background:var(--surface-active);color:var(--foreground);font-weight:600}.side-order{width:18px;color:var(--subtle);flex-shrink:0;font-family:JetBrains Mono,monospace;font-size:11px}.side-link.active .side-order{color:var(--muted)}.side-document-row{align-items:center;display:flex;position:relative}.side-document-row .side-link{flex:1;min-width:0}.side-document-row .side-link>span:nth-child(2){text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.side-document-delete{flex-shrink:0;margin-left:2px}.trailing{flex-shrink:0;margin-left:auto}.week-nav{margin-bottom:22px}.week-nav summary{cursor:pointer;color:var(--muted);justify-content:space-between;align-items:center;padding:0 11px 7px;font-size:12px;font-weight:600;list-style:none;display:flex}.week-nav summary::-webkit-details-marker{display:none}.week-nav:not([open]) summary svg{transform:rotate(-90deg)}.sidebar-admin-heading{justify-content:space-between;align-items:center;min-height:30px;margin-bottom:8px;display:flex}.sidebar-admin-heading .nav-label{margin-bottom:0}.catalog-grade,.catalog-semester,.catalog-subject{margin:0 0 10px}.catalog-grade>summary,.catalog-semester>summary,.catalog-subject>summary{cursor:pointer;color:var(--muted);justify-content:space-between;align-items:center;gap:6px;list-style:none;display:flex}.catalog-grade>summary::-webkit-details-marker{display:none}.catalog-semester>summary::-webkit-details-marker{display:none}.catalog-subject>summary::-webkit-details-marker{display:none}.catalog-grade>summary{color:var(--foreground);padding:8px 8px 6px;font-size:14px;font-weight:650}.catalog-semester{margin-left:8px}.catalog-semester>summary{padding:6px 7px;font-size:13px;font-weight:600}.catalog-subject{margin:3px 0 8px 9px}.catalog-subject>summary{padding:6px 7px;font-size:12px}.catalog-grade:not([open])>summary svg:last-child,.catalog-semester:not([open])>summary svg:last-child,.catalog-subject:not([open])>summary svg:last-child{transform:rotate(-90deg)}.catalog-actions{align-items:center;gap:1px;margin-left:auto;display:flex}.catalog-icon-button{width:24px;height:24px;color:var(--muted);background:0 0;border:0;border-radius:4px;place-items:center;display:grid}.catalog-icon-button:hover{color:var(--foreground);background:var(--surface-active)}.catalog-delete-button:hover{color:#dc2626;background:#dc26261a}.resources{border-top:1px solid var(--border);margin-top:6px;padding-top:24px}.sidebar-note{border-top:1px solid var(--border);margin-top:auto;padding:22px 12px 0}.small-logo{letter-spacing:-.03em;word-break:keep-all;overflow-wrap:anywhere;margin-bottom:9px;font-family:inherit;font-size:18px;font-weight:600;line-height:1.5;display:block}.sidebar-note p{color:var(--muted);font-size:12px;line-height:1.9}.sidebar-note>span:last-child{color:var(--muted);margin-top:16px;font-size:12px;display:block}#main-content{min-width:0;min-height:calc(100dvh - 64px)}.index-page{max-width:1180px;margin:auto;padding:36px 48px 0}.page-kicker{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding-bottom:24px;display:flex}.home-hero{grid-template-columns:minmax(0,1.4fr) minmax(260px,1fr);align-items:center;gap:46px;padding:55px 0 53px;display:grid}.hero-label{align-items:center;gap:8px;margin-bottom:23px;font-size:13px;font-weight:600;display:flex}.status-dot{background:var(--foreground);border-radius:50%;width:5px;height:5px}.hero-copy h1{letter-spacing:-.055em;font-size:clamp(32px,3.2vw,46px);font-weight:750;line-height:1.3}.hero-copy h1 .muted{color:var(--muted)}.hero-copy>p{color:var(--muted);margin-top:20px;font-size:14px;line-height:1.9}.hero-actions{align-items:center;gap:23px;margin-top:29px;display:flex}.button{border:1px solid var(--border-strong);background:var(--background);border-radius:6px;justify-content:center;align-items:center;gap:20px;min-height:42px;padding:10px 17px;font-size:13px;font-weight:550;display:inline-flex}.button.primary{background:var(--foreground);color:var(--background);border-color:var(--foreground)}.button:hover{opacity:.8}.text-link{align-items:center;gap:9px;font-size:13px;font-weight:550;display:inline-flex}.text-link:hover{text-underline-offset:5px;text-decoration:underline}.continue-panel{border:1px solid var(--border);background:var(--surface);border-radius:8px;padding:24px}.continue-top{justify-content:space-between;align-items:center;gap:8px;display:flex}.continue-top .eyebrow{font-size:10px}.continue-top .meta{font-size:11px}.progress-track{background:var(--border);height:3px;margin:15px 0 26px;overflow:hidden}.progress-track>span{background:var(--foreground);height:100%;transition:width .2s;display:block}.continue-panel>.eyebrow{font-size:10px}.continue-panel h2{letter-spacing:-.025em;margin:8px 0;font-size:21px}.continue-panel p{color:var(--muted);margin-bottom:20px;font-size:13px;line-height:1.75}.continue-panel .text-link{border-top:1px solid var(--border);justify-content:space-between;width:100%;padding-top:16px}.curriculum-heading{border-top:1px solid var(--foreground);justify-content:space-between;align-items:flex-end;padding:29px 0 24px;display:flex}.curriculum-heading .eyebrow{font-size:10px}.curriculum-heading h2{letter-spacing:-.03em;margin-top:8px;font-size:25px}.curriculum-heading>.meta{font-size:12px}.separator{color:var(--subtle);margin:0 9px}.week-section{margin-bottom:34px;scroll-margin-top:100px}.grade-section{margin:0 0 48px;scroll-margin-top:90px}.grade-heading{border-top:1px solid var(--foreground);align-items:center;gap:12px;padding:18px 0;display:flex}.grade-heading h2{font-size:23px}.grade-badge{background:var(--foreground);width:31px;height:31px;color:var(--background);border-radius:5px;place-items:center;font:11px JetBrains Mono,monospace;display:grid}.semester-section{margin:0 0 34px}.semester-heading{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:12px 0 4px;display:flex}.semester-heading h3{font-size:17px}.subject-section{margin:15px 0 30px}.subject-empty{border:1px dashed var(--border);color:var(--muted);text-align:center;border-radius:7px;padding:24px;font-size:13px}.section-heading{justify-content:space-between;align-items:center;margin-bottom:15px;padding-top:14px;display:flex}.section-heading h2{align-items:center;gap:10px;font-size:15px;font-weight:600;display:flex}.week-number{border:1px solid var(--border);width:26px;height:26px;color:var(--muted);border-radius:4px;justify-content:center;align-items:center;font-family:JetBrains Mono,monospace;font-size:10px;display:flex}.card-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;display:grid}.lecture-card{border:1px solid var(--border);border-radius:7px;flex-direction:column;min-height:205px;padding:20px;transition:border-color .15s,background .15s;display:flex}.lecture-card.compact{min-height:145px}.lecture-card:hover{border-color:var(--foreground);background:var(--surface)}.card-meta{color:var(--muted);justify-content:space-between;align-items:center;margin-bottom:23px;font-size:12px;display:flex}.card-meta>span:first-child{color:var(--foreground);font-size:12px}.completed{align-items:center;gap:4px;display:flex}.card-title{justify-content:space-between;align-items:flex-start;gap:7px;display:flex}.card-title h3{letter-spacing:-.02em;font-size:16px}.card-title svg{color:var(--subtle);flex-shrink:0}.lecture-card>p{color:var(--muted);margin:9px 0 19px;font-size:13px;line-height:1.8}.tag-list{color:var(--muted);flex-wrap:wrap;gap:8px;margin-top:auto;font-size:12px;display:flex}.practice-banner{border:1px solid var(--border);background:var(--surface);border-radius:7px;align-items:center;gap:18px;margin:42px 0 50px;padding:22px;display:flex}.practice-icon{border:1px solid var(--border);border-radius:6px;flex-shrink:0;place-items:center;width:45px;height:45px;display:grid}.practice-banner h2{margin-bottom:5px;font-size:15px}.practice-banner p{color:var(--muted);font-size:12px}.practice-banner .text-link{white-space:nowrap;margin-left:auto}.site-footer{border-top:1px solid var(--border);color:var(--muted);justify-content:space-between;gap:20px;padding:23px 0;font-size:10px;display:flex}.site-footer>span:first-child{color:var(--foreground);font-weight:600}.page-title{padding:22px 0 36px}.page-title .eyebrow{margin-bottom:17px;display:block}.page-title h1{letter-spacing:-.04em;margin-bottom:14px;font-size:36px}.page-title>p{color:var(--muted);font-size:16px;line-height:1.9}.page-title .meta{margin-top:20px;display:block}.document-grid{grid-template-columns:minmax(0,1fr) 210px;gap:40px;padding:44px 30px 0 45px;display:grid}.document-main{width:100%;min-width:0;max-width:800px;margin:0 auto}.document-toolbar{justify-content:space-between;align-items:center;gap:18px;margin-bottom:30px;display:flex}.breadcrumb{color:var(--muted);align-items:center;gap:10px;font-size:12px;display:flex}.breadcrumb a:hover{color:var(--foreground)}.document-print-controls{flex-shrink:0;align-items:center;display:flex}.document-print-theme{border:1px solid var(--border);min-height:34px;color:var(--muted);background:var(--background);border-right:0;border-radius:6px 0 0 6px;outline:0;padding:0 28px 0 10px;font-size:12px}.document-print-theme:hover,.document-print-theme:focus{color:var(--foreground);border-color:var(--border-strong);background:var(--surface)}.document-print-button{border:1px solid var(--border);min-height:34px;color:var(--muted);background:var(--background);border-radius:6px;flex-shrink:0;align-items:center;gap:7px;padding:0 11px;font-size:12px;display:inline-flex}.document-print-controls .document-print-button{border-radius:0 6px 6px 0}.document-print-button:hover{color:var(--foreground);border-color:var(--border-strong);background:var(--surface)}.document-print-watermark{display:none}.lecture-header{border-bottom:1px solid var(--border);margin-bottom:28px;padding-bottom:27px}.lecture-header .eyebrow{font-size:11px}.lecture-header .eyebrow span{margin:0 8px}.lecture-header h1{letter-spacing:-.045em;margin:15px 0 14px;font-size:36px}.lead{color:var(--muted);font-size:17px;line-height:1.8}.lecture-metadata{color:var(--muted);flex-wrap:wrap;gap:13px;margin-top:20px;font-size:12px;display:flex}.objectives{border:1px solid var(--border);background:var(--surface);border-radius:7px;margin-bottom:32px;padding:21px 24px}.objectives h2{margin-bottom:12px;font-size:14px}.objectives ul{margin:0;padding:0;list-style:none}.objectives li{color:var(--muted);gap:10px;margin:5px 0;font-size:14px;line-height:1.8;display:flex}.objectives li>span{color:var(--subtle)}.page-toc{scroll-behavior:smooth;align-self:start;max-height:calc(100dvh - 125px);padding-top:18px;font-size:12px;position:sticky;top:105px;overflow:auto}.page-toc .nav-label{margin:0 0 19px 14px;font-size:10px}.page-toc a{border-left:1px solid var(--border);color:var(--muted);padding:6px 12px;line-height:1.6;display:block}.page-toc a.nested{padding-left:24px}.page-toc a.level-4{padding-left:36px;font-size:11px}.page-toc a.active{color:var(--foreground);border-left:2px solid var(--foreground);padding-left:11px;font-weight:600}.page-toc a.nested.active{padding-left:23px}.page-toc a.level-4.active{padding-left:35px}.page-toc a:hover{color:var(--foreground)}.toc-bottom{border-top:1px solid var(--border);color:var(--muted);margin:40px 0 0 13px;padding-top:17px}.toc-bottom span{font-size:12px}.toc-bottom p{margin-top:7px;font-size:12px}.prose{overflow-wrap:anywhere;font-size:16px;line-height:1.9}.prose h2{letter-spacing:-.035em;margin:46px 0 20px;scroll-margin-top:100px;font-size:26px}.prose h3{letter-spacing:-.02em;margin:28px 0 15px;scroll-margin-top:100px;font-size:20px}.prose p{margin:16px 0}.prose ul,.prose ol{margin:16px 0;padding-left:23px}.prose ul{list-style:outside}.prose ol{list-style:decimal}.prose li{margin:6px 0;padding-left:3px}.prose a{text-underline-offset:4px;text-decoration:underline}.prose strong{font-weight:650}.prose :not(pre)>code{background:var(--surface-active);word-break:break-word;border-radius:4px;padding:3px 6px;font-family:JetBrains Mono,monospace;font-size:.83em}.prose blockquote{border-left:3px solid var(--foreground);color:var(--muted);margin:24px 0;padding:1px 20px}.prose hr{border:0;border-top:1px solid var(--border);margin:35px 0}.table-scroll{border:1px solid var(--border);border-radius:6px;margin:24px 0;overflow-x:auto}.prose table{border-collapse:collapse;white-space:normal;width:100%;font-size:14px}.prose th,.prose td{text-align:left;border-bottom:1px solid var(--border);min-width:110px;padding:12px 16px}.prose th{background:var(--surface);font-weight:600}.prose tr:last-child td{border-bottom:0}.prose h2+p:has(>em:only-child){color:var(--muted);margin:-12px 0 22px;font-size:13px;line-height:1.6}.prose h2+p:has(>em:only-child)>em{font-style:normal}.study-callout{--callout-color:#2563eb;--callout-bg:var(--callout-color)}@supports (color:color-mix(in lab, red, red)){.study-callout{--callout-bg:color-mix(in srgb,var(--callout-color) 9%,var(--background))}}.study-callout{border:1px solid var(--callout-color);margin:25px 0;padding:42px 20px 16px;position:relative}@supports (color:color-mix(in lab, red, red)){.study-callout{border:1px solid color-mix(in srgb,var(--callout-color) 35%,var(--border))}}.study-callout{border-left:4px solid var(--callout-color);background:var(--callout-bg);color:var(--foreground);border-radius:7px}.study-callout:before{content:attr(data-callout-label);color:var(--callout-color);letter-spacing:.04em;font-size:12px;font-weight:750;position:absolute;top:13px;left:19px}.study-callout>p:first-child{margin-top:0}.study-callout>p:last-child{margin-bottom:0}.study-callout-definition{--callout-color:#2563eb}.study-callout-exam{--callout-color:#ca8a04}.study-callout-caution{--callout-color:#dc2626}.study-callout-example{--callout-color:#16a34a}.study-callout-advanced{--callout-color:#9333ea}.study-mark{color:inherit;-webkit-box-decoration-break:clone;box-decoration-break:clone;border-radius:3px;padding:.08em .2em}.study-mark-yellow{background:#fde04794}.study-mark-blue{background:#60a5fa61}.study-mark-red{background:#f8717161}.study-mark-green{background:#4ade8061}.study-mark-purple{background:#c084fc61}.study-quiz{border:1px solid #0d9488;margin:26px 0 10px;padding:42px 20px 16px;position:relative}@supports (color:color-mix(in lab, red, red)){.study-quiz{border:1px solid color-mix(in srgb,#0d9488 38%,var(--border))}}.study-quiz{background:#0d9488;border-left:4px solid #0d9488;border-radius:7px}@supports (color:color-mix(in lab, red, red)){.study-quiz{background:color-mix(in srgb,#0d9488 8%,var(--background))}}.study-quiz:before{content:attr(data-callout-label);color:#0d9488;font-size:12px;font-weight:750;position:absolute;top:13px;left:19px}.study-quiz>p{margin:0}.study-answer{border:1px solid var(--border);border-radius:7px;margin:0 0 26px;overflow:hidden}.study-answer-summary{cursor:pointer;background:var(--surface);padding:12px 16px;font-size:13px;font-weight:650}.study-answer>p,.study-answer>ul,.study-answer>ol{margin-left:18px;margin-right:18px}.study-quiz-results{border-top:1px solid var(--border);gap:7px;padding-top:12px;display:flex}.study-quiz-results button{border:1px solid var(--border);background:var(--background);border-radius:5px;padding:6px 10px;font-size:12px}.study-quiz-results button:hover,.study-quiz-results button.selected{border-color:var(--foreground)}.study-quiz-results button.selected{background:var(--foreground);color:var(--background)}.study-quiz-mcq{gap:8px;display:grid}.study-quiz-mcq>p:first-of-type{margin-bottom:8px}.study-quiz-choice{border:1px solid var(--border);background:var(--background);width:100%;min-height:48px;color:var(--foreground);font:inherit;text-align:left;cursor:pointer;border-radius:5px;grid-template-columns:30px minmax(0,1fr);align-items:center;gap:10px;padding:8px 12px;line-height:1.55;transition:border-color .15s,background .15s,box-shadow .15s;display:grid}.study-quiz-choice>strong:first-child{border:1px solid var(--border-strong);border-radius:50%;place-items:center;width:28px;height:28px;font:650 11px JetBrains Mono,monospace;display:grid}.study-quiz-choice:hover{border-color:var(--border-strong);background:var(--surface-hover)}.study-quiz-choice:focus-visible{outline:2px solid var(--foreground);outline-offset:2px}.study-quiz-choice.selected{border-color:var(--foreground);background:var(--surface-active);box-shadow:inset 3px 0 var(--foreground)}.study-quiz-choice.selected>strong:first-child{border-color:var(--foreground);background:var(--foreground);color:var(--background)}.study-quiz-choice.correct{background:#22c55e;border-color:#16a34a}@supports (color:color-mix(in lab, red, red)){.study-quiz-choice.correct{background:color-mix(in srgb,#22c55e 12%,var(--background))}}.study-quiz-choice.correct{box-shadow:inset 3px 0 #16a34a}.study-quiz-choice.correct>strong:first-child{color:#fff;background:#16a34a;border-color:#16a34a}.study-quiz-choice.wrong{background:#ef4444;border-color:#dc2626}@supports (color:color-mix(in lab, red, red)){.study-quiz-choice.wrong{background:color-mix(in srgb,#ef4444 12%,var(--background))}}.study-quiz-choice.wrong{box-shadow:inset 3px 0 #dc2626}.study-quiz-choice.wrong>strong:first-child{color:#fff;background:#dc2626;border-color:#dc2626}.study-quiz-check{border-top:1px solid var(--border);flex-wrap:wrap;align-items:center;gap:10px 14px;margin-top:8px;padding-top:14px;display:flex}.study-quiz-confirm{border:1px solid var(--foreground);background:var(--foreground);min-height:40px;color:var(--background);font:inherit;cursor:pointer;border-radius:5px;padding:0 16px;font-size:13px;font-weight:650}.study-quiz-confirm:hover:not(:disabled){opacity:.82}.study-quiz-confirm:focus-visible{outline:2px solid var(--foreground);outline-offset:2px}.study-quiz-confirm:disabled{opacity:.35;cursor:not-allowed}.study-quiz-feedback{min-height:1.5em;color:var(--muted);font-size:13px}.study-quiz-feedback.correct{color:#15803d;font-weight:650}.study-quiz-feedback.wrong{color:#b91c1c;font-weight:650}.study-question-translation .study-quiz-choice{width:calc(100% - 28px);margin:8px 14px}.study-translation{border-left:2px solid var(--border-strong);background:var(--surface);color:var(--muted);margin:0 0 10px}.study-translation-summary{cursor:pointer;min-height:44px;color:var(--foreground);letter-spacing:.01em;align-items:center;padding:9px 14px;font-size:12px;font-weight:650;display:flex}.study-translation-summary:hover{background:var(--surface-hover)}.study-translation-summary:focus-visible{outline:2px solid var(--foreground);outline-offset:2px}.study-translation>p,.study-translation>ul,.study-translation>ol{margin-left:16px;margin-right:16px}.study-translation[open]{padding-bottom:8px}.study-answer-translation{margin-top:-16px;margin-bottom:26px}.study-hint{border-left:2px solid var(--border-strong);background:var(--surface);color:var(--muted);margin:0 0 10px}.study-hint-summary{cursor:pointer;min-height:42px;color:var(--foreground);align-items:center;padding:8px 14px;font-size:12px;font-weight:650;display:flex}.study-hint-summary:hover{background:var(--surface-hover)}.study-hint-summary:focus-visible{outline:2px solid var(--foreground);outline-offset:2px}.study-hint>p,.study-hint>ul,.study-hint>ol{margin-left:16px;margin-right:16px}.study-hint[open]{padding-bottom:8px}.study-hint-solution{border-left-color:var(--foreground);margin-bottom:24px}.study-blank{background:#60a5fa;border:0;border-bottom:2px solid #2563eb;border-radius:3px 3px 0 0;min-width:4.5em;margin:0 .16em;padding:.08em .45em}@supports (color:color-mix(in lab, red, red)){.study-blank{background:color-mix(in srgb,#60a5fa 18%,var(--surface))}}.study-blank{color:#0000;font:inherit;text-shadow:0 0 7px var(--foreground);font-weight:650}@supports (color:color-mix(in lab, red, red)){.study-blank{text-shadow:0 0 7px color-mix(in srgb,var(--foreground) 42%,transparent)}}.study-blank{cursor:pointer;transition:color .15s,background .15s,text-shadow .15s}.study-blank:hover,.study-blank:focus-visible{background:#60a5fa}@supports (color:color-mix(in lab, red, red)){.study-blank:hover,.study-blank:focus-visible{background:color-mix(in srgb,#60a5fa 28%,var(--surface))}}.study-blank.revealed{color:var(--foreground);text-shadow:none}.study-flashcard{border:1px solid #7c3aed;margin:26px 0}@supports (color:color-mix(in lab, red, red)){.study-flashcard{border:1px solid color-mix(in srgb,#7c3aed 38%,var(--border))}}.study-flashcard{background:#7c3aed;border-radius:8px}@supports (color:color-mix(in lab, red, red)){.study-flashcard{background:color-mix(in srgb,#7c3aed 7%,var(--background))}}.study-flashcard{overflow:hidden}.study-flashcard summary{cursor:pointer;padding:18px 48px 18px 20px;font-weight:650;list-style:none;position:relative}.study-flashcard summary::-webkit-details-marker{display:none}.study-flashcard summary:after{content:"정답 보기";color:#7c3aed;font-size:11px;font-weight:650;position:absolute;top:19px;right:18px}.study-flashcard[open] summary:after{content:"정답 닫기"}.study-flashcard-answer{border-top:1px solid var(--border);background:var(--background);padding:17px 20px;margin:0!important}.study-card-results{border-top:1px solid var(--border);gap:7px;padding:12px 20px 16px;display:flex;margin:0!important}.study-card-results button{border:1px solid var(--border);background:var(--background);color:var(--muted);border-radius:5px;padding:6px 10px;font-size:12px}.study-card-results button:hover,.study-card-results button.selected{border-color:var(--foreground);color:var(--foreground)}.study-card-results button.selected{background:var(--foreground);color:var(--background)}.study-workspace{position:relative}.study-floating-actions{z-index:12;justify-content:flex-end;gap:6px;height:0;display:flex;position:sticky;top:76px;transform:translateY(-5px)}.study-floating-actions button{border:1px solid var(--border);background:var(--background);border-radius:6px;align-items:center;gap:6px;height:32px;padding:0 9px;display:flex}@supports (color:color-mix(in lab, red, red)){.study-floating-actions button{background:color-mix(in srgb,var(--background) 92%,transparent)}}.study-floating-actions button{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);color:var(--muted);font-size:11px}.study-floating-actions button:hover{color:var(--foreground)}.study-floating-actions button span{background:var(--foreground);min-width:17px;height:17px;color:var(--background);border-radius:9px;place-items:center;font-size:9px;display:grid}.selection-toolbar{z-index:80;border:1px solid var(--border-strong);background:var(--background);border-radius:8px;align-items:center;gap:5px;padding:7px;display:flex;position:fixed;transform:translate(-50%,-115%);box-shadow:0 8px 28px #0000002e}.selection-toolbar button{background:var(--surface);border:0;border-radius:5px;place-items:center;width:27px;height:27px;display:grid}.selection-color{border:1px solid #0000001f!important}.selection-color.yellow{background:#fde047!important}.selection-color.blue{background:#60a5fa!important}.selection-color.red{background:#f87171!important}.selection-color.green{background:#4ade80!important}.selection-color.purple{background:#c084fc!important}.memo-dialog-overlay{z-index:90;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0000007a;border:0;position:fixed;inset:0}.memo-dialog{z-index:91;border:1px solid var(--border-strong);background:var(--background);border-radius:12px;width:min(520px,100vw - 32px);padding:24px;position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);box-shadow:0 28px 90px #00000047}.memo-dialog>header{align-items:center;gap:12px;display:flex}.memo-dialog-icon{background:var(--foreground);height:40px;color:var(--background);border-radius:9px;flex:0 0 40px;place-items:center;display:grid}.memo-dialog>header>div:nth-child(2){min-width:0}.memo-dialog>header span{color:var(--muted);margin-bottom:2px;font-size:12px;display:block}.memo-dialog h2{letter-spacing:-.03em;margin:0;font-size:21px}.memo-dialog>header>button{width:34px;height:34px;color:var(--muted);background:0 0;border:0;border-radius:6px;place-items:center;margin-left:auto;display:grid}.memo-dialog>header>button:hover{background:var(--surface);color:var(--foreground)}.memo-dialog>p{color:var(--muted);margin:18px 0 12px;font-size:13px;line-height:1.65}.memo-dialog blockquote{border:1px solid var(--border);background:var(--surface);max-height:110px;color:var(--muted);border-left:3px solid #9333ea;border-radius:6px;margin:0 0 18px;padding:12px 14px;font-size:13px;line-height:1.6;overflow:auto}.memo-dialog label{margin-bottom:7px;font-size:12px;font-weight:650;display:block}.memo-dialog textarea{resize:vertical;border:1px solid var(--border-strong);background:var(--background);width:100%;min-height:145px;color:var(--foreground);border-radius:7px;outline:0;padding:13px 14px;font:14px/1.7 Pretendard,sans-serif;display:block}.memo-dialog textarea::placeholder{color:var(--subtle)}.memo-dialog textarea:focus{border-color:#9333ea;box-shadow:0 0 0 3px #9333ea29}.memo-dialog-footer{justify-content:space-between;align-items:center;gap:16px;margin-top:15px;display:flex}.memo-dialog-footer>span{color:var(--muted);font-size:10px}.memo-dialog-footer>div{gap:7px;display:flex}.memo-dialog-footer button{border-radius:6px;min-height:36px;padding:0 13px;font-size:12px;font-weight:650}.memo-cancel{border:1px solid var(--border);background:var(--background);color:var(--muted)}.memo-cancel:hover{border-color:var(--border-strong);color:var(--foreground)}.memo-save{border:1px solid var(--foreground);background:var(--foreground);color:var(--background)}.memo-save:disabled{cursor:not-allowed;opacity:.4}.study-panel{z-index:72;border-left:1px solid var(--border);background:var(--background);width:min(390px,92vw);height:100dvh;transition:transform .2s;position:fixed;top:0;right:0;transform:translate(102%);box-shadow:-15px 0 45px #0000001f}.study-panel.open{transform:none}.study-panel>header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;height:65px;padding:0 18px;display:flex}.study-panel>header div{flex-direction:column;display:flex}.study-panel>header span{color:var(--muted);font-size:11px}.study-panel>header button,.study-record-delete{background:0 0;border:0;place-items:center;display:grid}.study-panel-content{height:calc(100dvh - 65px);padding:15px;overflow:auto}.study-empty{text-align:center;color:var(--muted);flex-direction:column;align-items:center;gap:12px;padding:50px 24px;font-size:13px;display:flex}.study-record{border:1px solid var(--border);background:var(--surface);border-radius:7px;align-items:flex-start;margin-bottom:9px;display:flex}.study-record-main{text-align:left;background:0 0;border:0;flex:1;min-width:0;padding:12px}.study-record-main>span{color:var(--muted);text-transform:uppercase;margin-bottom:5px;font-size:10px;display:block}.study-record-main q,.study-record-main p{margin:0;font-size:13px;line-height:1.55;display:block}.study-record-delete{height:38px;color:var(--muted);flex:0 0 34px}.study-record-delete:hover{color:#dc2626}.study-panel-overlay{z-index:70;background:#00000040;border:0;display:none;position:fixed;inset:0}.study-panel-overlay.open{display:block}.has-study-memo{border-right:3px solid #9333ea!important}.has-study-bookmark{box-shadow:inset 3px 0 #ca8a04}.callout{border:1px solid var(--border-strong);background:var(--surface);border-radius:6px;gap:12px;margin:24px 0;padding:16px 19px;font-size:14px;display:flex}.callout>svg{flex-shrink:0;margin-top:5px}.callout.warning{border-left:3px solid var(--foreground);background:var(--surface-hover)}.callout p{margin:0}.callout p+p{margin-top:8px}.callout-label{margin-bottom:5px;font-weight:650;display:block}.answer{border:1px solid var(--border);border-radius:6px;margin:20px 0}.answer summary{cursor:pointer;padding:13px 17px;font-size:14px;font-weight:550}.answer summary:hover{background:var(--surface)}.answer>div{border-top:1px solid var(--border);padding:0 20px 15px}.answer[open] .answer-closed,.answer:not([open]) .answer-open{display:none}.prose figure[data-rehype-pretty-code-figure]{margin:24px 0}.prose figcaption{border:1px solid var(--border);background:var(--surface);border-bottom:0;border-radius:6px 6px 0 0;padding:9px 16px;font-family:JetBrains Mono,monospace;font-size:12px}.prose figcaption+.code-block{border-radius:0 0 6px 6px;margin-top:0}.code-block{border:1px solid var(--border);background:var(--code-background);border-radius:6px;margin:24px 0;position:relative;overflow:hidden}.prose figure .code-block{margin:0}.code-block pre{margin:0;padding:45px 0 20px;line-height:1.8;overflow-x:auto;background:var(--code-background)!important}.code-block pre code{color:var(--foreground);background:0 0;min-width:max-content;padding:0;font-family:JetBrains Mono,monospace;font-size:13px;display:block}.code-block [data-line]{min-width:100%;padding:0 20px;display:inline-block}.code-block [data-highlighted-line]{background:var(--surface-active);border-left:2px solid var(--foreground);padding-left:18px}.code-block code[data-line-numbers]{counter-reset:line}.code-block code[data-line-numbers]>[data-line]:before{counter-increment:line;content:counter(line);text-align:right;width:1.6rem;color:var(--subtle);margin-right:1rem;display:inline-block}.copy-button{z-index:1;border:1px solid var(--border);background:var(--background);border-radius:4px;align-items:center;gap:6px;padding:4px 8px;font-size:11px;line-height:1.5;display:flex;position:absolute;top:8px;right:9px}@supports (color:color-mix(in lab, red, red)){.copy-button{background:color-mix(in srgb,var(--background) 88%,transparent)}}.copy-button{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);color:var(--muted)}.copy-button:hover{color:var(--foreground)}html:not(.dark) .code-block code[data-theme~=light-plus] span[style*=--shiki-light],html.light .code-block code[data-theme~=light-plus] span[style*=--shiki-light]{color:var(--shiki-light)!important}.dark .code-block code[data-theme~=dark-plus] span[style*=--shiki-dark]{color:var(--shiki-dark)!important}.code-feedback{color:var(--muted);padding:0 16px 10px;font-size:12px}.prose img[src^="/materials/diagrams/"]{border:1px solid var(--border);background:#f7f6f2;border-radius:2px;width:100%;height:auto;margin:24px 0 14px;display:block}.prose img[src^="/materials/diagrams/mis-gl-"]{max-width:560px;margin-inline:auto}.completion-box{border:1px solid var(--border);background:var(--surface);border-radius:7px;margin:45px 0 28px;padding:24px}.completion-box>div{align-items:flex-start;gap:14px;display:flex}.completion-box strong{font-size:16px}.completion-box p{color:var(--muted);margin-top:4px;font-size:13px}.check-label{cursor:pointer;align-items:center;gap:10px;margin:20px 0 10px;font-size:14px;display:flex}.check-label input{width:17px;height:17px;accent-color:var(--foreground)}.completion-box small{color:var(--muted);font-size:11px}.prev-next{grid-template-columns:1fr 1fr;gap:16px;margin:30px 0 48px;display:grid}.prev-next>a{border:1px solid var(--border);border-radius:6px;padding:17px}.prev-next>a:hover{border-color:var(--foreground)}.prev-next span{color:var(--muted);align-items:center;gap:7px;margin-bottom:6px;font-size:11px;display:flex}.prev-next strong{font-size:14px;font-weight:550}.prev-next .next{text-align:right}.prev-next .next span{justify-content:flex-end}.resource-list{margin:0 0 60px}.resource-row{border-top:1px solid var(--border);align-items:center;gap:24px;padding:25px 0;display:flex}.resource-row:last-child{border-bottom:1px solid var(--border)}.resource-row:hover h2{text-underline-offset:5px;text-decoration:underline}.resource-row>.eyebrow{flex-shrink:0;width:66px;font-size:11px}.resource-row h2{margin-bottom:7px;font-size:20px}.resource-row p{color:var(--muted);font-size:14px}.resource-row>svg{flex-shrink:0;margin-left:auto}.resource-row .meta{margin-top:10px;display:block}.assignment-info{border:1px solid var(--border);border-radius:6px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin:20px 0 30px;padding:18px 20px;font-size:14px;display:flex}.assignment-info .meta{margin-bottom:4px;display:block}.about-page{max-width:870px}.about-page .prose{padding-bottom:50px}.about-page .prose h2{font-size:24px}.review-page{width:min(980px,100% - 56px);margin:0 auto;padding:52px 0 70px}.review-header{margin-bottom:28px}.review-header h1{letter-spacing:-.045em;margin:12px 0 9px;font-size:38px}.review-header p{color:var(--muted)}.review-stats{border:1px solid var(--border);background:var(--surface);border-radius:8px;grid-template-columns:repeat(4,1fr);margin-bottom:18px;display:grid}.review-stats>div{border-right:1px solid var(--border);flex-direction:column;gap:3px;padding:18px 20px;display:flex}.review-stats>div:last-child{border-right:0}.review-stats strong{font:650 24px JetBrains Mono,monospace}.review-stats span{color:var(--muted);font-size:12px}.review-filters{flex-wrap:wrap;gap:8px;margin-bottom:26px;display:flex}.review-filters select,.review-filters button{border:1px solid var(--border);background:var(--background);min-height:36px;color:var(--muted);border-radius:6px;outline:0;padding:0 30px 0 11px;font-size:12px}.review-filters select:focus,.review-filters select:hover,.review-filters button:hover{border-color:var(--border-strong);color:var(--foreground)}.review-filters button{align-items:center;gap:6px;padding-right:11px;display:inline-flex}.review-list{gap:10px;display:grid}.review-card{border:1px solid var(--border);background:var(--background);border-radius:8px;align-items:flex-start;gap:15px;padding:18px 20px;display:flex}.review-card:hover{border-color:var(--foreground);background:var(--surface)}.review-card>svg{color:var(--muted);flex:none;margin-top:3px}.review-card>div{min-width:0}.review-card-meta{color:var(--muted);margin-bottom:5px;font-size:11px;display:block}.review-card h2{margin:0 0 7px;font-size:17px}.review-card q,.review-card p{color:var(--muted);margin:0;font-size:13px;line-height:1.65;display:block}.review-card strong{margin-top:8px;font-size:11px;display:inline-block}.review-card.wrong{border-left:4px solid #dc2626}.review-card.unsure{border-left:4px solid #ca8a04}.review-card.correct{border-left:4px solid #16a34a}.review-empty{border:1px dashed var(--border-strong);text-align:center;min-height:260px;color:var(--muted);border-radius:8px;flex-direction:column;justify-content:center;align-items:center;padding:35px;display:flex}.review-empty h2{color:var(--foreground);margin:13px 0 5px;font-size:18px}.review-empty p{margin:0;font-size:13px}.empty-state{text-align:center;padding:70px 20px}.empty-state h1{margin:20px 0;font-size:30px}.empty-state p{color:var(--muted);margin:12px 0 25px}.empty-state .button{margin-top:15px}.dialog-overlay{z-index:50;background:#0006;position:fixed;inset:0}.search-dialog{z-index:51;background:var(--background);border:1px solid var(--border);border-radius:10px;width:min(600px,100% - 32px);position:fixed;top:14vh;left:50%;overflow:hidden;transform:translate(-50%);box-shadow:0 18px 70px #00000026}.search-input-row{border-bottom:1px solid var(--border);align-items:center;gap:14px;padding:14px 17px;display:flex}.search-input-row>svg{color:var(--muted);flex-shrink:0}.search-input-row input{width:100%;min-width:0;color:var(--foreground);background:0 0;border:0;outline:none;padding:4px 0;font-size:16px}.search-results{max-height:55dvh;padding:18px 10px 10px;overflow:auto}.search-results .nav-label{font-size:10px}.search-results ul{margin:0;padding:0;list-style:none}.search-result{border-radius:6px;justify-content:space-between;align-items:center;gap:12px;padding:13px;display:flex}.search-result.active{background:var(--surface-active)}.search-result strong{font-size:14px;display:block}.search-result p{color:var(--muted);margin:3px 0;font-size:12px}.search-result .meta{margin-top:4px;font-size:10px;display:block}.search-result svg{flex-shrink:0}.search-footer{color:var(--muted);background:var(--surface);border-top:1px solid var(--border);gap:20px;padding:10px 20px;font-size:11px;display:flex}.search-footer kbd{margin-right:4px}.search-results .empty-state{padding:45px 10px;font-size:14px}.mobile-drawer{z-index:51;background:var(--background);width:min(320px,88vw);position:fixed;top:0;bottom:0;left:0;overflow:auto}.drawer-heading{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:15px 22px;font-weight:650;display:flex}.mobile-drawer .sidebar-content{min-height:calc(100% - 68px)}@media (min-width:1440px){.app-shell{border-left:1px solid var(--border);border-right:1px solid var(--border)}}@media (max-width:1279px){.page-toc{display:none}.document-grid{grid-template-columns:minmax(0,1fr);padding:36px 40px 0}.header-inner{gap:22px;padding:0 24px}.header-nav{gap:22px;margin-left:0}.brand-by{display:none}.app-shell{grid-template-columns:230px minmax(0,1fr)}.index-page{padding:30px 32px 0}.home-hero{grid-template-columns:1fr;gap:28px;padding:35px 0}.hero-copy h1{font-size:42px}.continue-panel{padding:20px 24px}.continue-panel p{margin-bottom:12px}.progress-track{margin-bottom:17px}.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.practice-banner{flex-wrap:wrap}.practice-banner .text-link{margin-left:63px}.header-actions{gap:8px}.search-trigger kbd{margin-left:8px}.sidebar-toggle-rail{left:200px}.sidebar-collapsed .sidebar-toggle-rail{left:0}}@media (max-width:900px){.search-trigger span,.search-trigger kbd{display:none}.search-trigger{background:0 0;border:0;justify-content:center;width:34px;padding:0}.header-nav{gap:18px}.index-page{padding:26px 24px 0}.document-grid{padding:30px 28px 0}.app-shell{grid-template-columns:215px minmax(0,1fr)}.sidebar-content{padding:28px 13px}.sidebar-toggle-rail{left:185px}.sidebar-collapsed .sidebar-toggle-rail{left:0}}@media (max-width:767px){.mobile-only{display:inline-flex}.desktop-sidebar,.header-nav{display:none}.app-shell{display:block}.site-header{height:58px}.header-inner{gap:10px;padding:0 14px}.brand{gap:8px;font-size:13px}.brand-symbol{width:30px;height:26px;font-size:15px}.header-actions{gap:2px}.index-page{padding:24px 22px 0}.page-kicker{padding-bottom:18px}.page-kicker .meta{font-size:11px}.home-hero{gap:30px;padding:34px 0 32px}.hero-label{margin-bottom:20px}.hero-copy h1{font-size:39px}.hero-copy>p{font-size:14px}.hero-actions{gap:24px;margin-top:24px}.continue-panel{padding:22px}.continue-panel h2{font-size:21px}.curriculum-heading{padding-top:25px}.curriculum-heading h2{font-size:24px}.curriculum-heading>.meta{font-size:9px}.separator{margin:0 4px}.card-grid{grid-template-columns:1fr;gap:12px}.lecture-card{min-height:180px;padding:21px}.card-meta{margin-bottom:17px}.card-title h3{font-size:18px}.lecture-card>p{font-size:14px}.tag-list,.section-heading>.meta{font-size:11px}.practice-banner{gap:14px;margin:30px 0 40px;padding:19px}.practice-banner>div:nth-child(2){flex:1}.practice-banner h2{font-size:15px}.practice-banner .text-link{margin-left:59px}.site-footer{gap:12px;font-size:9px}.site-footer>span:last-child{text-align:right}.page-title h1{font-size:32px}.document-grid{padding:25px 22px 0;display:block}.lecture-header h1{font-size:32px}.lead{font-size:16px}.lecture-header .eyebrow{font-size:10px}.lecture-metadata{gap:10px;font-size:10px}.objectives{padding:19px}.prose h2{font-size:24px}.prose h3{font-size:19px}.prose{font-size:16px}.code-block pre code{font-size:12px}.completion-box{padding:20px}.prev-next{gap:10px}.prev-next>a{padding:14px}.prev-next strong{font-size:13px}.resource-row{gap:15px}.resource-row>.eyebrow{width:55px;font-size:10px}.resource-row h2{font-size:18px}.search-dialog{top:8vh}.search-results{max-height:60dvh}.review-page{width:calc(100% - 36px);padding:34px 0 55px}.review-header h1{font-size:32px}.review-stats{grid-template-columns:repeat(2,1fr)}.review-stats>div:nth-child(2){border-right:0}.review-stats>div:nth-child(-n+2){border-bottom:1px solid var(--border)}.review-filters select{flex:calc(50% - 8px)}.study-flashcard summary{padding-right:20px}.study-flashcard summary:after{margin-top:7px;display:block;position:static}}@media (max-width:520px){.memo-dialog{width:calc(100vw - 24px);padding:20px}.memo-dialog textarea{min-height:130px}.memo-dialog-footer{flex-direction:column;align-items:stretch}.memo-dialog-footer>div{justify-content:flex-end}.memo-dialog-footer button{flex:1}}.prose h4{margin:24px 0 12px;scroll-margin-top:100px;font-size:17px;font-weight:600}.nav-label,.sidebar-note>span:last-child,.page-kicker .eyebrow,.hero-label,.continue-top .eyebrow,.continue-top .meta,.continue-panel>.eyebrow,.curriculum-heading .eyebrow,.curriculum-heading>.meta,.week-number,.card-meta,.tag-list,.sidebar-note p,.site-footer,.lecture-header .eyebrow,.lecture-metadata,.page-toc .nav-label,.toc-bottom span,.completion-box small,.search-results .nav-label,.search-result .meta,.resource-row>.eyebrow{font-size:12px}.side-link,.header-nav a,.button,.text-link,.search-trigger,.copy-button,.prev-next strong{font-size:14px}.hero-copy>p{font-size:16px}.page-toc{font-size:13px}.card-meta{gap:8px}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition:none!important;animation:none!important}}.admin-trigger{border:1px solid var(--border);background:var(--background);height:34px;color:var(--muted);border-radius:6px;align-items:center;gap:7px;padding:0 11px;font-size:12px;display:inline-flex}.admin-trigger:hover,.admin-trigger.active{color:var(--foreground);border-color:var(--border-strong);background:var(--surface)}.admin-trigger.active svg{fill:var(--foreground)}.admin-dialog-overlay{-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}.admin-dialog{z-index:52;border:1px solid var(--border-strong);background:var(--background);border-radius:10px;width:min(420px,100% - 32px);padding:30px;position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);box-shadow:0 24px 80px #00000038}.admin-dialog-icon{background:var(--foreground);width:42px;height:42px;color:var(--background);border-radius:7px;place-items:center;margin-bottom:20px;display:grid}.admin-dialog h2{letter-spacing:-.025em;margin:0 35px 8px 0;font-size:21px}.admin-dialog>p{color:var(--muted);font-size:14px;line-height:1.7}.admin-dialog-close{position:absolute;top:15px;right:15px}.admin-login-form{flex-direction:column;margin-top:23px;display:flex}.admin-login-form label{margin-bottom:7px;font-size:12px;font-weight:600}.admin-login-form input{border:1px solid var(--border-strong);height:44px;color:var(--foreground);background:var(--surface);border-radius:6px;outline:none;padding:0 13px}.admin-login-form input:focus{border-color:var(--foreground);box-shadow:0 0 0 1px var(--foreground)}.admin-login-form .button{margin-top:14px}.admin-error{color:var(--foreground);margin:7px 0 -5px;font-size:12px;font-weight:600}.admin-dialog-actions{justify-content:flex-end;gap:9px;margin-top:25px;display:flex}.admin-editable-note{border:1px dashed var(--border-strong);cursor:text;border-radius:7px;padding:0 18px 18px;transition:border-color .15s,background .15s;position:relative}.admin-editable-note:hover{border-color:var(--foreground);background:var(--surface)}.admin-edit-hint{z-index:5;border:1px solid var(--border);background:var(--background);color:var(--muted);border-radius:5px;align-items:center;gap:7px;margin:10px 0 0 auto;padding:7px 10px;font-size:12px;display:flex;position:sticky;top:76px}.admin-edit-hint:hover{color:var(--foreground);border-color:var(--foreground)}.markdown-editor{z-index:12;border:1px solid var(--border-strong);background:var(--background);border-radius:8px;width:min(1080px,100vw - 320px);margin:15px 50% 38px;position:relative;overflow:hidden;transform:translate(-50%);box-shadow:0 16px 48px #00000014}.editor-toolbar{z-index:14;border-bottom:1px solid var(--border);background:var(--surface);justify-content:space-between;align-items:center;gap:15px;min-height:48px;padding:8px 11px 8px 15px;display:flex;position:relative}@supports (color:color-mix(in lab, red, red)){.editor-toolbar{background:color-mix(in srgb,var(--surface) 86%,transparent)}}.editor-toolbar{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);font-size:12px;font-weight:600}.editor-toolbar>div:first-child,.editor-saved,.editor-toolbar-actions,.editor-toolbar-actions button{align-items:center;display:flex}.admin-live-dot{background:var(--foreground);width:7px;height:7px;box-shadow:0 0 0 3px var(--border);border-radius:50%;margin-right:8px}.editor-saved{color:var(--muted);gap:5px;margin-left:12px;font-weight:400}.editor-saved.error{color:var(--foreground);font-weight:650}.editor-toolbar-actions{z-index:15;border:1px solid var(--border);gap:3px;padding:2px;position:relative}@supports (color:color-mix(in lab, red, red)){.editor-toolbar-actions{border:1px solid color-mix(in srgb,var(--border) 72%,transparent)}}.editor-toolbar-actions{background:var(--background);border-radius:6px}@supports (color:color-mix(in lab, red, red)){.editor-toolbar-actions{background:color-mix(in srgb,var(--background) 78%,transparent)}}.editor-toolbar-actions{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.editor-toolbar-actions button{color:var(--muted);background:0 0;border:0;border-radius:4px;gap:5px;padding:6px 8px;font-size:11px}.editor-toolbar-actions button:hover{color:var(--foreground);background:var(--surface-active)}.editor-grid{grid-template-columns:1fr 1fr;min-height:600px;display:grid}.editor-input-pane,.editor-preview-pane{min-width:0;position:relative}.editor-input-pane{border-right:1px solid var(--border);flex-direction:column;display:flex}.editor-pane-label{border-bottom:1px solid var(--border);height:37px;color:var(--muted);background:var(--surface);letter-spacing:.08em;text-transform:uppercase;justify-content:space-between;align-items:center;padding:0 13px;font:10px JetBrains Mono,monospace;display:flex}.editor-pane-label span{letter-spacing:0;text-transform:none;font-family:Pretendard,sans-serif}.editor-input-pane textarea{resize:vertical;width:100%;min-height:480px;color:var(--foreground);background:var(--background);tab-size:2;border:0;outline:0;flex:1;padding:18px;font:13px/1.75 JetBrains Mono,monospace;display:block}.editor-preview-pane>.prose{height:calc(100% - 37px);max-height:720px;padding:0 24px 35px;overflow:auto}.editor-syntax-help{border:1px solid var(--border);color:var(--muted);border-radius:5px;margin:10px 14px 0;font-size:11px}.editor-syntax-help summary{cursor:pointer;padding:7px 10px;font-weight:600}.editor-syntax-help>div{flex-wrap:wrap;gap:6px;padding:0 10px 9px;display:flex}.editor-syntax-help code{background:var(--surface-active);border-radius:3px;padding:3px 6px;font-family:JetBrains Mono,monospace}.editor-preview-pane .prose h1,.prose>h1:first-child{letter-spacing:-.04em;margin:30px 0 20px;font-size:30px;line-height:1.3}.editor-preview-pane .prose h2{margin-top:35px}.editor-preview-pane .prose pre{border:1px solid var(--border);background:var(--code-background);border-radius:6px;padding:16px;font:12px/1.7 JetBrains Mono,monospace;overflow:auto}.admin-title-input{border:1px dashed var(--border-strong);width:100%;color:var(--foreground);background:var(--surface);letter-spacing:-.045em;border-radius:6px;outline:0;margin:15px 0 14px;padding:5px 9px;font-size:36px;font-weight:700;line-height:1.3;display:block}.admin-title-input:hover,.admin-title-input:focus{border-style:solid;border-color:var(--foreground);background:var(--background)}.admin-description-input{resize:vertical;border:1px dashed var(--border-strong);width:100%;min-height:62px;color:var(--muted);background:var(--surface);border-radius:6px;outline:0;margin:0 0 8px;padding:9px 11px;font-size:17px;line-height:1.7;display:block}.admin-description-input:hover,.admin-description-input:focus{border-style:solid;border-color:var(--foreground);color:var(--foreground);background:var(--background)}@media (max-width:1279px){.markdown-editor{width:min(900px,100vw - 285px)}}@media (max-width:900px){.admin-trigger span{display:none}.admin-trigger{border:0;justify-content:center;width:34px;padding:0}.markdown-editor{width:calc(100vw - 260px)}.editor-grid{grid-template-columns:1fr}.editor-input-pane{border-right:0;border-bottom:1px solid var(--border)}.editor-preview-pane>.prose{max-height:none}.editor-saved{display:none}}@media (max-width:767px){.markdown-editor{width:calc(100vw - 28px)}.editor-toolbar{flex-direction:column;align-items:flex-start}.editor-toolbar-actions{justify-content:flex-end;width:100%}.editor-input-pane textarea{min-height:460px}.admin-dialog{padding:25px}.admin-dialog-actions{flex-direction:column-reverse}.admin-dialog-actions .button{width:100%}.admin-editable-note{padding:0 12px 12px}.admin-title-input{font-size:32px}.sidebar-toggle-rail{display:none}}@media screen{.site-header{background:var(--background);height:60px}@supports (color:color-mix(in lab, red, red)){.site-header{background:color-mix(in srgb,var(--background) 94%,transparent)}}.site-header{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.header-inner{gap:32px;padding-inline:28px}.brand{letter-spacing:.015em;gap:10px;font-size:13px}.brand-symbol{letter-spacing:-.05em;border-radius:2px;width:32px;height:26px;font-size:14px}.header-nav{gap:26px;margin-left:8px}.header-nav a{border:0;padding-top:1px;font-size:13px;position:relative}.header-nav .selected:after{content:"";background:var(--foreground);height:2px;position:absolute;bottom:0;left:0;right:0}.header-actions{gap:8px}.search-trigger,.admin-trigger{background:0 0;border-radius:3px;height:36px}.search-trigger:hover,.admin-trigger:hover,.admin-trigger.active{background:var(--surface)}.search-trigger:active,.icon-button:active,.admin-trigger:active,.button:active{transform:translateY(1px)}.icon-button{border-radius:3px;min-width:40px;min-height:40px}.app-shell{grid-template-columns:264px minmax(0,1fr);max-width:1536px;transition:grid-template-columns .18s}.desktop-sidebar{height:calc(100dvh - 60px);top:60px}.sidebar-toggle-rail{left:234px}.sidebar-toggle{border-radius:0 3px 3px 0;margin-top:14px;top:74px}.sidebar-content{padding:34px 22px 28px}.sidebar-admin-heading{border-bottom:1px solid var(--border);margin-bottom:12px;padding-bottom:12px}.nav-label{margin-left:8px}.catalog-grade,.catalog-semester,.catalog-subject{margin-bottom:8px}.catalog-grade>summary{padding:9px 8px;font-size:14px}.catalog-semester{border-left:1px solid var(--border);margin-left:7px;padding-left:8px}.catalog-semester>summary{padding:7px 6px}.catalog-subject{margin-left:8px}.catalog-subject>summary{color:var(--foreground);padding:7px 6px 5px;font-size:12px}.side-link{border-radius:2px;min-height:40px;margin:1px 0;padding:7px 8px;position:relative}.side-link.active{box-shadow:inset 2px 0 var(--foreground);background:0 0}.side-link:hover{background:var(--surface)}.side-order{color:var(--subtle);font-variant-numeric:tabular-nums;font-size:10px}.sidebar-note{padding-inline:8px}.sidebar-note .small-logo{letter-spacing:.01em;font-size:15px}.sidebar-note>span:last-child{display:none}#main-content{min-height:calc(100dvh - 60px)}.index-page{max-width:1120px;padding:42px 54px 0}.page-kicker{padding-bottom:18px}.home-hero{grid-template-columns:minmax(0,1.28fr) minmax(290px,.82fr);align-items:end;gap:72px;padding:64px 0 68px}.hero-label{color:var(--muted);margin-bottom:18px;font-size:10px}.hero-copy h1{letter-spacing:-.048em;text-wrap:balance;max-width:680px;font-size:clamp(34px,3.4vw,50px);font-weight:680;line-height:1.24}.hero-copy>p{max-width:570px;margin-top:22px;font-size:15px;line-height:1.85}.hero-actions{margin-top:28px}.button{border-radius:3px;min-height:44px;padding:10px 16px;transition:background-color .15s,border-color .15s,color .15s,transform .1s}.button:hover{opacity:1;border-color:var(--foreground);background:var(--surface-hover)}.button.primary:hover{background:var(--foreground)}@supports (color:color-mix(in lab, red, red)){.button.primary:hover{background:color-mix(in srgb,var(--foreground) 86%,var(--background))}}.button.primary:hover{color:var(--background)}.continue-panel{border:0;border-left:1px solid var(--border-strong);background:0 0;border-radius:0;padding:0 0 2px 22px}.continue-panel,.continue-panel>*{min-width:0}.continue-panel h2{margin:10px 0;font-size:20px;font-weight:650}.continue-panel .text-link{padding-top:14px}.curriculum-heading{padding:34px 0 22px}.curriculum-heading h2{font-size:24px}.grade-section{margin-bottom:56px}.grade-heading{gap:14px;padding:20px 0 16px}.grade-heading h2{font-size:21px;font-weight:650}.grade-badge{width:auto;height:auto;color:var(--muted);background:0 0;border-radius:0;font-size:10px}.semester-heading{padding:14px 0 8px}.semester-heading h3{font-size:15px}.subject-section{margin-top:22px}.section-heading{margin-bottom:10px;padding-top:8px}.section-heading h2{font-size:16px}.card-grid{border-top:1px solid var(--border);grid-template-columns:repeat(2,minmax(0,1fr));gap:0 28px}.lecture-card,.lecture-card.compact{border:0;border-bottom:1px solid var(--border);background:0 0;border-radius:0;min-height:0;padding:19px 2px 21px}.lecture-card:hover{border-color:var(--border-strong);background:0 0}.lecture-card:focus-visible{outline-offset:5px}.card-meta{margin-bottom:12px}.card-meta>span:first-child{font-size:11px}.card-title h3{font-size:17px;font-weight:650;line-height:1.45}.card-title svg{width:17px;transition:transform .15s,color .15s}.lecture-card:hover .card-title svg{color:var(--foreground);transform:translate(2px,-2px)}.lecture-card>p{margin:8px 0 14px;font-size:13px;line-height:1.75}.tag-list{color:var(--subtle);gap:12px;font-size:9px}.practice-banner{background:0 0;border-width:1px 0;border-radius:0;margin:48px 0;padding:22px 0}.practice-icon{border:0;border-radius:0}.page-title{max-width:760px;padding:42px 0 44px}.page-title h1{margin:12px 0 10px;font-size:40px;font-weight:680}.page-title>p{font-size:15px}.document-grid{grid-template-columns:minmax(0,74ch) 220px;justify-content:center;gap:72px;padding:46px 48px 0}.document-main{max-width:74ch}.document-toolbar{border-bottom:1px solid var(--border);margin-bottom:38px;padding-bottom:12px}.breadcrumb{gap:7px;min-width:0;font-size:11px}.breadcrumb span:last-child{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.document-print-theme,.document-print-button{background:0 0;border-radius:3px}.lecture-header{margin-bottom:30px;padding-bottom:30px}.lecture-header h1{letter-spacing:-.045em;text-wrap:balance;max-width:18ch;margin:16px 0 15px;font-size:clamp(34px,3.6vw,48px);font-weight:690;line-height:1.22}.lecture-header .eyebrow{line-height:1.7}.lead{max-width:62ch;font-size:16px;line-height:1.85}.lecture-metadata{margin-top:18px;font-size:10px}.objectives{background:0 0;border-width:0 0 0 2px;border-radius:0;margin:0 0 38px;padding:21px 0 21px 20px}.objectives h2{letter-spacing:.01em;margin-bottom:9px;font-size:13px}.objectives li{margin:4px 0;font-size:14px;line-height:1.75}.page-toc{scrollbar-width:thin;max-height:calc(100dvh - 112px);padding:10px 0 18px;top:91px}.page-toc .nav-label{margin:0 0 16px 13px}.page-toc a{padding:7px 12px;line-height:1.55}.toc-bottom{margin-top:32px}.prose{letter-spacing:-.006em;font-size:16.5px;line-height:1.92}.prose h2{border-top:1px solid var(--border);text-wrap:balance;margin:58px 0 20px;padding-top:14px;font-size:27px;font-weight:680;line-height:1.35}.prose h3{margin:36px 0 14px;font-size:20px;font-weight:660;line-height:1.45}.prose p{margin:17px 0}.prose li{margin:7px 0;padding-left:5px}.prose a{text-decoration-thickness:1px;-webkit-text-decoration-color:var(--border-strong);-webkit-text-decoration-color:var(--border-strong);-webkit-text-decoration-color:var(--border-strong);text-decoration-color:var(--border-strong)}.prose a:hover{-webkit-text-decoration-color:var(--foreground);-webkit-text-decoration-color:var(--foreground);-webkit-text-decoration-color:var(--foreground);text-decoration-color:var(--foreground)}.prose blockquote{margin:30px 0;padding:2px 0 2px 22px}.table-scroll{scrollbar-width:thin;border-radius:2px;margin:30px 0}.prose th,.prose td{vertical-align:top;padding:12px 14px}.prose th{background:var(--surface);font-size:13px}.study-callout,.study-quiz{--callout-color:var(--foreground);--callout-bg:var(--surface);border-color:var(--border);border-left:3px solid var(--foreground);background:var(--surface);border-radius:2px;margin:30px 0;padding:43px 20px 18px}.study-callout:before,.study-quiz:before{color:var(--foreground);font-size:12px}.study-callout-definition,.study-callout-exam,.study-callout-caution,.study-callout-example,.study-callout-advanced{--callout-color:var(--foreground)}.study-quiz{border-color:var(--border)}.study-answer,.study-flashcard,.study-translation,.study-hint,.answer,.callout{box-shadow:none;border-radius:2px}.study-flashcard{border-color:var(--border);background:var(--surface)}.study-flashcard summary:after{color:var(--muted)}.study-quiz-results button,.study-card-results button{border-radius:2px;min-height:36px}.study-quiz-choice,.study-quiz-confirm{border-radius:2px}.study-floating-actions button{background:var(--background);-webkit-backdrop-filter:none;backdrop-filter:none;border-radius:3px;min-height:36px}.completion-box{background:0 0;border-width:1px 0;border-radius:0;margin:52px 0 30px;padding:24px 0}.check-label{width:max-content;min-height:44px;margin:14px 0 5px}.prev-next{border-block:1px solid var(--border);gap:0;margin:30px 0 52px}.prev-next>a{border:0;border-radius:0;min-height:108px;padding:20px 18px}.prev-next>a+a{border-left:1px solid var(--border)}.prev-next>a:hover{background:var(--surface)}.prev-next strong{font-size:14px;line-height:1.55}.review-page{width:min(980px,100% - 72px);padding-top:54px}.review-stats{background:0 0;border-radius:2px}.review-filters select,.review-filters button{background:0 0;border-radius:3px;min-height:42px}.review-card{border-width:0 0 1px;border-radius:0;padding:20px 4px}.review-card.wrong,.review-card.unsure,.review-card.correct{border-left:0}.review-card.wrong:before,.review-card.unsure:before,.review-card.correct:before{content:"";border:1px solid;border-radius:50%;flex:0 0 7px;width:7px;height:7px;margin-top:8px}.review-card.wrong:before{background:var(--foreground)}.review-card.unsure:before{background:linear-gradient(90deg,var(--foreground) 50%,transparent 50%)}.review-card.correct:before{background:0 0}.search-dialog,.admin-dialog,.memo-dialog{border-radius:4px;box-shadow:0 20px 60px #00000029}.search-input-row:focus-within{box-shadow:inset 3px 0 var(--foreground)}.search-result{border-radius:2px}.admin-login-form input,.admin-title-input,.admin-description-input,.editor-syntax-help{border-radius:3px}.catalog-icon-button{min-width:32px;min-height:32px}.admin-login-form input:focus-visible,.admin-title-input:focus-visible,.admin-description-input:focus-visible,.memo-dialog textarea:focus-visible,.review-filters select:focus-visible{outline:2px solid var(--focus-ring);outline-offset:2px}}@media screen and (max-width:1279px){.app-shell{grid-template-columns:240px minmax(0,1fr)}.sidebar-toggle-rail{left:210px}.document-grid{grid-template-columns:minmax(0,74ch);max-width:920px;margin-inline:auto;padding-inline:44px}.home-hero{gap:38px}}@media screen and (max-width:900px){.app-shell{grid-template-columns:220px minmax(0,1fr)}.sidebar-toggle-rail{left:190px}.index-page{padding-inline:30px}.home-hero{grid-template-columns:1fr;padding-block:44px}.continue-panel{max-width:620px}}@media screen and (max-width:767px){.site-header{height:58px;padding-top:env(safe-area-inset-top)}.header-inner{padding-inline:max(14px,env(safe-area-inset-left))}.brand-symbol{width:29px}.index-page{padding:28px 20px 0}.home-hero{gap:36px;padding:40px 0 42px}.hero-copy h1{font-size:36px}.hero-copy>p{font-size:14px}.continue-panel{border-left:0;border-top:1px solid var(--border-strong);padding:20px 0 0}.continue-top{align-items:flex-start}.continue-top .meta{text-align:right;white-space:normal;max-width:48%}.continue-panel h2{overflow-wrap:anywhere;max-width:100%}.card-grid{grid-template-columns:1fr}.lecture-card,.lecture-card.compact{padding-block:18px}.practice-banner{align-items:flex-start}.practice-banner .text-link{width:100%;margin-left:0;padding-left:59px}.curriculum-heading>.meta{text-align:right;white-space:normal;max-width:46%;line-height:1.7}.document-grid{padding:30px 20px 0}.document-toolbar{align-items:flex-start;margin-bottom:30px}.breadcrumb{flex-wrap:wrap}.lecture-header h1{font-size:34px}.prose{font-size:16px;line-height:1.88}.prose h2{margin-top:48px;font-size:24px}.prose h3{font-size:19px}.objectives{padding-left:16px}.prev-next{grid-template-columns:1fr}.prev-next>div{display:none}.prev-next>a+a{border-top:1px solid var(--border);border-left:0}.review-page{width:calc(100% - 40px)}.mobile-drawer{padding-bottom:env(safe-area-inset-bottom)}}@page{size:A4;margin:10mm 11mm 12mm}@page study-document{size:A4;margin:14mm 26mm 16mm 14mm;@top-left{content:"HJS STUDY";color:#666;font:550 7pt sans-serif}@bottom-center{content:counter(page);color:#666;font:600 8pt sans-serif}@bottom-right{content:"26학번 한지석 제공";color:#666;font:550 7pt sans-serif;letter-spacing:.04em}}@media print{.printable-document{page:study-document}:root,.light,.dark{--background:#fff;--foreground:#111;--muted:#555;--subtle:#777;--border:#d8d8d8;--border-strong:#aaa;--surface:#f7f7f7;--surface-active:#eee;--code-background:#f6f6f6;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}html.print-theme-dark{--background:#0a0a0b;--foreground:#f5f5f5;--muted:#b3b3b8;--subtle:#8a8a90;--border:#303034;--border-strong:#55555b;--surface:#141416;--surface-active:#202024;--code-background:#111114;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}html,body{width:auto;min-width:0;color:var(--foreground);background:var(--background)}html{scroll-behavior:auto}body{-webkit-print-color-adjust:exact;print-color-adjust:exact;font-size:9pt;line-height:1.48}@supports (-webkit-touch-callout:none){.document-print-watermark{text-align:right;color:var(--muted);letter-spacing:.04em;break-inside:avoid;margin-top:5mm;font-size:7pt;font-weight:550;display:block}}.site-header,.desktop-sidebar,.skip-link,.page-toc,.document-toolbar,.completion-box,.prev-next,.site-footer,.copy-button,.code-feedback,.admin-edit-hint,.editor-toolbar,.study-quiz-check{display:none!important}.app-shell,#main-content,.document-grid,.document-main{border:0;width:auto;min-width:0;max-width:none;min-height:0;margin:0;padding:0;display:block}.lecture-header{border-bottom:1px solid var(--border-strong);break-inside:avoid-page;page-break-inside:avoid;margin:0 0 5mm;padding:0 0 4mm}.lecture-header h1{letter-spacing:-.035em;margin:2mm 0 0;font-size:20pt;line-height:1.2}.lecture-header .eyebrow{color:var(--muted);font-size:7pt}.lecture-metadata,.lead{color:var(--muted)}.objectives,.assignment-info{background:var(--surface);break-inside:avoid-page;page-break-inside:avoid;margin:0 0 4mm;padding:3.5mm}.admin-editable-note{cursor:default;background:0 0;border:0;padding:0}.prose{color:var(--foreground);font-size:9pt;line-height:1.52;overflow:visible}.prose h2,.prose h3,.prose h4,.prose h5,.prose h6{color:var(--foreground);break-after:avoid-page;page-break-after:avoid;orphans:3;widows:3}.prose h2{margin:0 0 3mm;padding-top:0;font-size:15.5pt}.prose h3{margin:4.5mm 0 2mm;font-size:12pt}.prose h4{margin:3.5mm 0 1.5mm;font-size:10pt}.prose p{orphans:3;widows:3;margin:2mm 0}.prose li{break-inside:avoid-page;page-break-inside:avoid;margin:.8mm 0}.prose>p,.prose>ul,.prose>ol,.prose>blockquote,.prose>.table-scroll,.prose>.callout,.prose>.answer,.prose>figure{break-inside:avoid-page;page-break-inside:avoid}.prose>hr{visibility:hidden;break-after:page;page-break-after:always;border:0;height:0;margin:0}.table-scroll{border-color:var(--border-strong);break-inside:avoid-page;page-break-inside:avoid;margin:3mm 0;overflow:visible}.prose table{font-size:8pt}.prose thead{display:table-header-group}.prose tr,.prose th,.prose td{break-inside:avoid-page;page-break-inside:avoid}.prose th,.prose td{min-width:0;padding:1.6mm 2mm}.callout,.answer,figure[data-rehype-pretty-code-figure],.code-block{break-inside:avoid-page;page-break-inside:avoid;box-shadow:none}.answer{border-color:var(--border-strong);margin:3mm 0}.answer summary,.study-answer summary,.study-translation summary,.study-hint summary,.study-flashcard summary{display:none}.study-answer,.study-translation,.study-hint,.study-flashcard{break-inside:avoid-page;page-break-inside:avoid;box-shadow:none}.study-quiz-choice{min-height:0;color:inherit;box-shadow:none;cursor:default;background:0 0;border:0;border-radius:0;margin:1mm 0;padding:0;display:block}.study-quiz-choice>strong:first-child{width:auto;height:auto;color:inherit;font:inherit;background:0 0;border:0;margin-right:1mm;display:inline}.answer>div{border:0;padding:2.5mm}.answer>div:before{content:"정답 코드";color:var(--muted);margin:0 0 2mm;font-size:8pt;font-weight:650;display:block}.prose figure[data-rehype-pretty-code-figure],.code-block{margin:2.5mm 0;overflow:visible}.prose figcaption{color:var(--muted);background:var(--surface-active);padding:1.7mm 2mm;font-size:7pt}.code-block pre{white-space:pre-wrap;padding:2.5mm 0;line-height:1.35;overflow:visible}.code-block pre code{white-space:pre-wrap;overflow-wrap:anywhere;word-break:break-word;min-width:0;font-size:7.2pt}.code-block [data-line]{white-space:pre-wrap;min-width:0;padding:0 2.5mm;display:block}html.print-theme-light .code-block code[data-theme~=light-plus] span[style*=--shiki-light]{color:var(--shiki-light)!important}html.print-theme-dark .code-block code[data-theme~=dark-plus] span[style*=--shiki-dark]{color:var(--shiki-dark)!important}.prose :not(pre)>code{color:var(--foreground);background:var(--surface-active)}.prose a{color:var(--foreground);text-decoration:none}img,svg{max-width:100%}}.unlock-page{justify-content:center;display:flex}.unlock-card{border:1px solid var(--border);background:var(--background);border-radius:8px;width:min(420px,100%);margin:64px 0 96px;padding:32px}.unlock-card h1{letter-spacing:-.03em;margin:18px 0 10px;font-size:24px}.unlock-card>p{color:var(--muted);font-size:14px;line-height:1.7}.study-callout-concept{--callout-color:#2563eb}.study-callout-board{--callout-color:#475569;border-style:dashed dashed dashed solid}.study-callout-board p,.study-callout-board li{font-weight:550}.study-callout-note{--callout-color:#0d9488;--callout-bg:transparent}.study-callout-trap{--callout-color:#dc2626;border-left-width:6px}.study-callout-problem{--callout-color:#16a34a}.study-callout-check{--callout-color:#7c3aed;border-style:solid;border-left-width:1px}@media screen{.study-callout-concept,.study-callout-board,.study-callout-note,.study-callout-trap,.study-callout-problem,.study-callout-check{--callout-color:var(--foreground)}.study-callout-board{border-style:dashed;border-left:3px solid var(--foreground)}.study-callout-note{background:0 0}.study-callout-trap{border-left-width:6px}.study-callout-check{border:1px solid var(--border-strong)}}.print-page-break{display:none}@media print{.print-page-break{break-before:page;page-break-before:always;height:0;display:block}.prose>hr{border:0;border-top:1px solid var(--border);visibility:visible;break-after:auto;page-break-after:auto;height:0;margin:4mm 0}.study-callout,.study-quiz{break-inside:avoid-page;page-break-inside:avoid;background:0 0;border-radius:0;margin:3mm 0;padding:7mm 3.5mm 3mm}.study-callout:before,.study-quiz:before{font-size:7.5pt;top:2mm;left:3.5mm}.study-callout{--callout-color:var(--foreground);border:1px solid var(--border-strong);border-left:2.5px solid var(--foreground)}.study-callout-board{border-style:dashed dashed dashed solid}.study-callout-trap{border-left-width:5px}.study-callout-note,.study-callout-check{border-left-width:1px}.study-quiz-results,.document-print-controls{display:none!important}.study-blank{border-bottom:1px solid var(--foreground);min-width:5em;color:#0000!important;text-shadow:none!important;background:0 0!important}.prose img[src^="/materials/diagrams/"]{border-color:var(--border-strong);break-inside:avoid-page;page-break-inside:avoid;background:#fff;width:auto;max-width:100%;max-height:125mm;margin:3mm auto}.prose img[src^="/materials/diagrams/"]+em{color:var(--muted);font-size:7.5pt}.prose p:has(>img[src^="/materials/diagrams/"])+p>em:only-child{color:var(--muted);font-size:7.5pt}html.print-mode-questions .study-answer,html.print-mode-questions .study-answer-translation,html.print-mode-questions .study-hint{display:none!important}}.mobile-drawer{flex-direction:column;display:flex;overflow:hidden}.mobile-drawer .drawer-heading{flex-shrink:0}.drawer-primary-nav{border-bottom:1px solid var(--border);background:var(--background);flex-shrink:0;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;padding:12px 14px;display:grid}.drawer-primary-nav a{border:1px solid var(--border);min-height:58px;color:var(--muted);text-align:center;border-radius:4px;flex-direction:column;justify-content:center;align-items:center;gap:4px;padding:8px 4px;font-size:13px;font-weight:550;display:flex}.drawer-primary-nav a:hover{color:var(--foreground);background:var(--surface-hover)}.drawer-primary-nav a.selected{color:var(--foreground);border-color:var(--foreground);background:var(--surface-active);font-weight:650}.drawer-scroll{overscroll-behavior:contain;flex:1;min-height:0;overflow:auto}.mobile-drawer .drawer-scroll .sidebar-content{min-height:100%}.mobile-toc{display:none}@media screen and (max-width:1279px){.mobile-toc{display:block}.mobile-toc-trigger{z-index:40;right:max(16px,env(safe-area-inset-right));bottom:calc(16px + env(safe-area-inset-bottom));border:1px solid var(--border-strong);max-width:min(340px,100vw - 32px);min-height:44px;color:var(--foreground);background:var(--background);border-radius:22px;align-items:center;gap:7px;padding:0 15px;display:flex;position:fixed}@supports (color:color-mix(in lab, red, red)){.mobile-toc-trigger{background:color-mix(in srgb,var(--background) 94%,transparent)}}.mobile-toc-trigger{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);font-size:13px;font-weight:600;box-shadow:0 8px 28px #00000024}.mobile-toc-trigger:hover{background:var(--surface-hover)}.mobile-toc-current{min-width:0;color:var(--muted);text-overflow:ellipsis;white-space:nowrap;font-weight:500;overflow:hidden}.mobile-toc-current:before{content:"·";margin-right:6px}}.mobile-toc-sheet{z-index:51;max-height:min(78dvh,640px);padding-bottom:env(safe-area-inset-bottom);border-top:1px solid var(--border-strong);background:var(--background);border-radius:10px 10px 0 0;flex-direction:column;display:flex;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -18px 60px #0000002e}.mobile-toc-heading{border-bottom:1px solid var(--border);flex-shrink:0;justify-content:space-between;align-items:center;padding:12px 14px 12px 22px;display:flex}.mobile-toc-heading h2{font-size:15px}.mobile-toc-list{overscroll-behavior:contain;padding:10px 12px 16px;overflow:auto}.mobile-toc-list a{min-height:44px;color:var(--muted);white-space:normal;word-break:keep-all;overflow-wrap:anywhere;border-left:2px solid #0000;padding:11px 12px;font-size:15px;line-height:1.45;display:block}.mobile-toc-list a.level-3{padding-left:26px;font-size:14px}.mobile-toc-list a.level-4{padding-left:40px;font-size:13px}.mobile-toc-list a:hover{color:var(--foreground);background:var(--surface-hover)}.mobile-toc-list a.active{color:var(--foreground);border-left-color:var(--foreground);background:var(--surface-active);font-weight:650}@media (min-width:768px){.mobile-toc-sheet{border-top:0;border-left:1px solid var(--border-strong);border-radius:0;width:min(400px,60vw);max-height:none;top:0;left:auto}}.prose h2:focus,.prose h3:focus,.prose h4:focus{outline:none}.prose h2:focus-visible,.prose h3:focus-visible,.prose h4:focus-visible{outline:2px solid var(--focus-ring);outline-offset:4px}.document-toolbar-actions{flex-shrink:0;align-items:center;gap:8px;display:flex}.document-access-button{border:1px dashed var(--border-strong);min-height:34px;color:var(--muted);background:0 0;border-radius:3px;align-items:center;gap:7px;padding:0 11px;font-size:12px;display:inline-flex}.document-access-button:hover{color:var(--foreground);border-color:var(--foreground)}.admin-wide-dialog{width:min(620px,100% - 32px);max-height:calc(100dvh - 40px);overflow:auto}.admin-wide-dialog code{overflow-wrap:anywhere;font-family:JetBrains Mono,monospace;font-size:.86em}.create-document-form{flex-direction:column;display:flex}.create-field-label{margin:22px 0 7px;font-size:12px;font-weight:600}.create-title-input,.access-key-fields input,.access-key-fields select{border:1px solid var(--border-strong);height:44px;color:var(--foreground);background:var(--surface);border-radius:4px;outline:none;padding:0 13px;font-size:15px}.create-title-input:focus,.access-key-fields input:focus,.access-key-fields select:focus{border-color:var(--foreground);box-shadow:0 0 0 1px var(--foreground)}.template-picker,.access-picker{border:0;min-width:0;margin:20px 0 0;padding:0}.template-picker legend,.access-picker legend{margin-bottom:8px;font-size:12px;font-weight:600}.template-option,.access-option{border:1px solid var(--border);cursor:pointer;border-radius:4px;align-items:flex-start;gap:10px;margin-top:6px;padding:11px 13px;display:flex}.template-option:hover,.access-option:hover{border-color:var(--border-strong);background:var(--surface-hover)}:is(.template-option:has(input:checked),.access-option:has(input:checked)){border-color:var(--foreground);background:var(--surface)}:is(.template-option:has(input:focus-visible),.access-option:has(input:focus-visible)){outline:2px solid var(--focus-ring);outline-offset:2px}.template-option input,.access-option input{accent-color:var(--foreground);margin-top:4px}.template-option span,.access-option span{flex-direction:column;gap:2px;min-width:0;display:flex}.template-option strong,.access-option strong{font-size:14px}.template-option small,.access-option small{color:var(--muted);word-break:keep-all;font-size:12px;line-height:1.5}.template-preview{border:1px solid var(--border);background:var(--surface);border-radius:4px;margin-top:16px;padding:14px 16px}.template-preview h3{margin-bottom:6px;font-size:12px}.template-preview ol{counter-reset:outline;flex-wrap:wrap;gap:6px;margin:0;padding:0;list-style:none;display:flex}.template-preview li{border:1px solid var(--border-strong);counter-increment:outline;border-radius:12px;padding:3px 9px;font-size:12px}.template-preview li:before{content:counter(outline) ". ";color:var(--muted)}.template-preview details{margin-top:10px;font-size:12px}.template-preview summary{color:var(--muted);cursor:pointer}.template-preview pre{border:1px solid var(--border);background:var(--background);white-space:pre-wrap;overflow-wrap:anywhere;border-radius:3px;max-height:260px;margin:8px 0 0;padding:12px;font:12px/1.55 JetBrains Mono,monospace;overflow:auto}.access-key-fields{flex-direction:column;margin-top:12px;display:flex}.access-key-fields label{margin:10px 0 6px;font-size:12px;font-weight:600}.access-help{color:var(--muted);margin-top:6px;font-size:12px}.access-status,.access-current{border:1px solid var(--border);border-radius:4px;gap:6px;margin:14px 0 0;padding:12px 14px;font-size:13px;display:grid}.access-current{margin-top:18px}.access-status div,.access-current div{grid-template-columns:96px minmax(0,1fr);gap:10px;display:grid}.access-status dt,.access-current dt{color:var(--muted);font-size:12px}.access-status dd,.access-current dd{overflow-wrap:anywhere;min-width:0;margin:0}.access-ok,.access-missing{align-items:center;gap:5px;font-weight:600;display:inline-flex}.access-missing{text-underline-offset:3px;-webkit-text-decoration:underline wavy;text-decoration:underline wavy}.access-warning,.access-note,.access-notice{border-radius:4px;gap:8px;margin-top:10px;padding:10px 12px;font-size:12px;line-height:1.6;display:flex}.access-warning{border:1px solid var(--foreground);border-left-width:4px}.access-note{color:var(--muted);background:var(--surface)}.access-notice{border:1px solid var(--border-strong);font-weight:600}.access-warning svg,.access-note svg{flex-shrink:0;margin-top:2px}.access-settings-form .admin-error,.create-document-form .admin-error{margin-top:12px}@media (max-width:767px){.document-toolbar-actions{flex-wrap:wrap;justify-content:flex-end}.admin-wide-dialog{width:100%;max-height:92dvh;padding:24px 18px calc(18px + env(safe-area-inset-bottom));border-radius:10px 10px 0 0;top:auto;bottom:0;left:0;transform:none}.access-status div,.access-current div{grid-template-columns:1fr;gap:2px}}@media print{.mobile-toc,.mobile-toc-sheet,.document-access-button{display:none!important}}@media screen and (max-width:767px){.table-scroll:has(.stack-table){border:0;border-radius:0;overflow:visible}.prose .stack-table,.prose .stack-table tbody,.prose .stack-table tr,.prose .stack-table td{width:100%;display:block}.prose .stack-table thead{display:none}.prose .stack-table tr{border:1px solid var(--border);background:var(--background);border-radius:6px;margin:0 0 10px}.prose .stack-table td{border-bottom:1px solid var(--border);min-width:0;padding:9px 13px;font-size:14.5px;line-height:1.7}.prose .stack-table td:first-child{background:var(--surface);font-weight:650}.prose .stack-table tr:last-child td{border-bottom:1px solid var(--border)}.prose .stack-table tr td:last-child{border-bottom:0}.prose .stack-table td:not(:first-child)[data-label]:before{content:attr(data-label);color:var(--muted);letter-spacing:.02em;margin-bottom:2px;font-size:11.5px;font-weight:600;display:block}.prose .stack-table td:empty{display:none}.study-callout,.study-quiz{padding:40px 14px 14px}.study-callout:before,.study-quiz:before{left:14px}.study-panel:not(.open){box-shadow:none;visibility:hidden}.document-grid{padding:16px 16px 0}.document-toolbar{align-items:center;margin-bottom:14px}.document-toolbar .breadcrumb{display:none}.document-toolbar-actions{justify-content:flex-end;width:100%;font-size:12px}.lecture-header{margin-bottom:18px;padding-bottom:16px}.lecture-header .eyebrow{font-size:10.5px}.lecture-header h1{letter-spacing:-.03em;margin-top:8px;font-size:25px;line-height:1.3}.lecture-header .lead{margin-top:10px;font-size:14px;line-height:1.65}.lecture-metadata{margin-top:10px}.objectives{margin-bottom:24px;padding:12px 0 12px 14px}.objectives h2{font-size:12.5px}.objectives li{font-size:13.5px;line-height:1.6}.prose{letter-spacing:-.01em;font-size:15px;line-height:1.72}.prose h1{font-size:22px;line-height:1.35}.prose h2{margin:36px 0 12px;padding-top:10px;font-size:20px;line-height:1.38}.prose h3{margin:24px 0 10px;font-size:16.5px;line-height:1.45}.prose p{margin:11px 0}.prose ul,.prose ol{margin:11px 0;padding-left:20px}.prose li{margin:4px 0;padding-left:2px}.prose blockquote{margin:18px 0;padding:0 0 0 14px}.prose hr{margin:24px 0}.study-callout,.study-quiz{margin:18px 0;padding:34px 12px 12px}.study-callout:before,.study-quiz:before{font-size:11px;top:10px;left:12px}.code-block{margin:16px 0}.code-block pre{padding:40px 0 14px;line-height:1.6}.code-block pre code{font-size:12px}.code-block [data-line]{padding:0 12px}.table-scroll{margin:16px 0}.prose table{font-size:13px;line-height:1.55}.prose th,.prose td{word-break:keep-all;overflow-wrap:anywhere;min-width:0;padding:8px 10px}.prose th{font-size:12px}.prose td :not(pre)>code,.prose th :not(pre)>code,.prose td>code,.prose th>code{white-space:normal;word-break:keep-all;overflow-wrap:normal;padding:2px 4px}.prose .stack-table tr{margin-bottom:8px}.prose .stack-table td{padding:7px 11px;font-size:13.5px;line-height:1.6}.prose .stack-table td:first-child{padding-block:8px;font-size:14px}.prose .stack-table td:not(:first-child)[data-label]:before{margin-bottom:1px;font-size:10.5px}.mobile-toc-trigger{opacity:.92;min-height:38px;padding:0 12px;font-size:12px}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-ordinal{syntax:"*";inherits:false}@property --tw-slashed-zero{syntax:"*";inherits:false}@property --tw-numeric-figure{syntax:"*";inherits:false}@property --tw-numeric-spacing{syntax:"*";inherits:false}@property --tw-numeric-fraction{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-backdrop-blur{syntax:"*";inherits:false}@property --tw-backdrop-brightness{syntax:"*";inherits:false}@property --tw-backdrop-contrast{syntax:"*";inherits:false}@property --tw-backdrop-grayscale{syntax:"*";inherits:false}@property --tw-backdrop-hue-rotate{syntax:"*";inherits:false}@property --tw-backdrop-invert{syntax:"*";inherits:false}@property --tw-backdrop-opacity{syntax:"*";inherits:false}@property --tw-backdrop-saturate{syntax:"*";inherits:false}@property --tw-backdrop-sepia{syntax:"*";inherits:false}
