@font-face{font-family:Geist;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/fef07dbb0973bf53-s.3p2_lha1f2xer.woff2?dpl=dpl_5KeSJGqnxukpYZ2DjcEEJ19FNFme)format("woff2");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Geist;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/8a480f0b521d4e75-s.1qq4vpdcun5oj.woff2?dpl=dpl_5KeSJGqnxukpYZ2DjcEEJ19FNFme)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Geist;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/53b9e256198e5412-s.390ncx5urfkfu.woff2?dpl=dpl_5KeSJGqnxukpYZ2DjcEEJ19FNFme)format("woff2");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:Geist;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/7178b3e590c64307-s.21jp631_3pja2.woff2?dpl=dpl_5KeSJGqnxukpYZ2DjcEEJ19FNFme)format("woff2");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:Geist;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/caa3a2e1cccd8315-s.p.0wgildi0cnwt9.woff2?dpl=dpl_5KeSJGqnxukpYZ2DjcEEJ19FNFme)format("woff2");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:Geist Fallback;src:local(Arial);ascent-override:95.94%;descent-override:28.16%;line-gap-override:0.0%;size-adjust:104.76%}.geist_a8fa0c1a-module__MXp6vq__className{font-family:Geist,Geist Fallback;font-style:normal}.geist_a8fa0c1a-module__MXp6vq__variable{--font-geist-sans:"Geist", "Geist Fallback"}
@font-face{font-family:Geist Mono;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/5ce348bf30bf5439-s.31988l_ccedte.woff2?dpl=dpl_5KeSJGqnxukpYZ2DjcEEJ19FNFme)format("woff2");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Geist Mono;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/4fa387ec64143e14-s.2tuy5pz7dlieh.woff2?dpl=dpl_5KeSJGqnxukpYZ2DjcEEJ19FNFme)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Geist Mono;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/6306c77e7c8268e4-s.2dbetqa9o8jxf.woff2?dpl=dpl_5KeSJGqnxukpYZ2DjcEEJ19FNFme)format("woff2");unicode-range:U+2000-2001,U+2004-2008,U+200A,U+23B8-23BD,U+2500-259F}@font-face{font-family:Geist Mono;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/7d817b4c03b0c5f1-s.1uyisp29ctx0d.woff2?dpl=dpl_5KeSJGqnxukpYZ2DjcEEJ19FNFme)format("woff2");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:Geist Mono;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/bbc41e54d2fcbd21-s.1rgnod-3esatf.woff2?dpl=dpl_5KeSJGqnxukpYZ2DjcEEJ19FNFme)format("woff2");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:Geist Mono;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/797e433ab948586e-s.p.0r6juujl39pe6.woff2?dpl=dpl_5KeSJGqnxukpYZ2DjcEEJ19FNFme)format("woff2");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:Geist Mono Fallback;src:local(Arial);ascent-override:74.67%;descent-override:21.92%;line-gap-override:0.0%;size-adjust:134.59%}.geist_mono_eb127541-module__XIXyIG__className{font-family:Geist Mono,Geist Mono Fallback;font-style:normal}.geist_mono_eb127541-module__XIXyIG__variable{--font-geist-mono:"Geist Mono", "Geist Mono Fallback"}
@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-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}}}@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--default-transition-duration:.15s;--default-transition-timing-function:cubic-bezier(.4, 0, .2, 1);--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@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,ui-sans-serif, system-ui, 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{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{.sr-only{clip-path:inset(50%);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.fixed{position:fixed}.relative{position:relative}.static{position:static}.isolate{isolation:isolate}.inline{display:inline}.table{display:table}.grow{flex-grow:1}.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,)}.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,)}.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{--paper:#f4f2ed;--ink:#171714;--muted:#6e6d66;--line:#d7d4cc;--surface:#fff;--accent:#e34a24;--accent-dark:#ad3216}*{box-sizing:border-box}html{background:var(--paper)}body{background:var(--paper);color:var(--ink);font-family:var(--font-geist-sans), ui-sans-serif, sans-serif;margin:0}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit}.shell{min-height:100vh}.topbar{border-bottom:1px solid var(--line);background:#f6f5f1f0;justify-content:space-between;align-items:center;height:64px;padding:0 28px;display:flex}.brand{color:var(--ink);white-space:nowrap;align-items:baseline;gap:7px;text-decoration:none;display:flex}.brand-mark{letter-spacing:-.075em;color:var(--accent);font-size:20px;font-weight:790}.brand-name{letter-spacing:-.035em;font-size:15px;font-weight:680}.brand-division{border-left:1px solid var(--line);color:var(--muted);padding-left:8px;font-size:12px;font-weight:520}.userbar{color:var(--muted);align-items:center;gap:14px;font-size:14px;display:flex}.userbar img{object-fit:cover;border-radius:50%;width:30px;height:30px}.link-button{color:var(--muted);cursor:pointer;background:0 0;border:0;padding:4px 0}.link-button:hover{color:var(--ink)}.main{width:min(1180px,100% - 48px);margin:0 auto;padding:54px 0 80px}.page-title{letter-spacing:-.045em;margin:0 0 9px;font-size:34px;font-weight:690;line-height:1.1}.page-subtitle{color:var(--muted);margin:0;font-size:15px}.course-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:40px;display:grid}.course-card{color:inherit;border:1px solid var(--line);background:var(--surface);border-radius:10px;text-decoration:none;transition:border-color .15s;display:block;overflow:hidden}.course-card:hover{border-color:#aaa99f}.cover{aspect-ratio:16/9;color:#fff;background:#1c1c19;flex-direction:column;justify-content:space-between;padding:22px;display:flex;position:relative;overflow:hidden}.cover:after{content:"";border-left:1px solid #ffffff1a;width:55%;height:160%;position:absolute;top:-30%;right:-15%;transform:rotate(17deg)}.cover-art{z-index:1;align-items:flex-start;line-height:.78;display:flex;position:relative}.cover-art span{letter-spacing:-.095em;color:#f4f2ed;font-size:clamp(56px,7vw,92px);font-weight:790}.cover-art i{color:var(--accent);font:700 23px var(--font-geist-sans);margin:2px 0 0 9px;font-style:normal}.cover-number{font:500 12px var(--font-geist-mono), monospace;color:#b8b9b2;z-index:1;position:relative}.card-body{padding:18px}.card-body h2{letter-spacing:-.025em;margin:0 0 7px;font-size:17px}.meta{color:var(--muted);gap:12px;font-size:13px;display:flex}.bar{background:#e8e7e2;height:3px;margin-top:17px;overflow:hidden}.bar>div{background:var(--accent);height:100%}.progress-label{font:500 11px var(--font-geist-mono),monospace;color:var(--muted);margin-top:8px}.login{grid-template-columns:1.05fr .95fr;min-height:100vh;display:grid}.login-copy{flex-direction:column;justify-content:space-between;padding:54px clamp(32px,7vw,104px);display:flex}.login-copy h1{letter-spacing:-.065em;max-width:620px;margin:0;font-size:clamp(45px,6vw,82px);font-weight:680;line-height:.96}.login-copy p{max-width:480px;color:var(--muted);margin:25px 0 0;line-height:1.6}.login-panel{color:#fff;background:#1c1c19;flex-direction:column;justify-content:center;align-items:center;padding:32px;display:flex;position:relative;overflow:hidden}.login-panel:after{content:"";border-left:1px solid #ffffff1a;width:58%;height:140%;position:absolute;top:-20%;right:-17%;transform:rotate(14deg)}.login-emblem{z-index:1;align-items:flex-start;width:min(390px,100%);margin-bottom:70px;line-height:.75;display:flex;position:relative}.login-emblem strong{letter-spacing:-.105em;font-size:clamp(80px,10vw,140px);font-weight:790}.login-emblem span{color:var(--accent);margin:5px 0 0 14px;font-size:30px;font-weight:750}.login-box{z-index:1;width:min(390px,100%);position:relative}.login-box h2{letter-spacing:-.035em;margin:0 0 8px;font-size:24px}.login-box p{color:#b5b6ae;margin:0 0 28px;font-size:14px;line-height:1.5}.google-button{color:#171815;cursor:pointer;background:#fff;border:0;border-radius:8px;justify-content:center;align-items:center;gap:11px;width:100%;height:46px;font-weight:620;display:flex}.google-button:hover{background:#f1f0eb}.google-g{color:#4285f4;font:700 17px Arial,sans-serif}.login-foot{color:#7b7d74;font-size:12px}.course-layout{grid-template-columns:minmax(0,1fr) 0 340px;height:calc(100vh - 64px);min-height:0;transition:grid-template-columns .18s;display:grid;overflow:hidden}.course-layout.chat-open{grid-template-columns:minmax(0,1fr) minmax(320px,360px) 340px}.lesson{overscroll-behavior:contain;flex-direction:column;min-height:0;padding:32px clamp(24px,4vw,64px) 28px;display:flex;overflow-y:auto}.crumb{color:var(--muted);font-size:13px;text-decoration:none}.lesson-heading{justify-content:space-between;align-items:center;gap:16px;min-height:75px;display:flex}.lesson h1{letter-spacing:-.035em;margin:0;font-size:26px}.lesson>.player{aspect-ratio:16/9;--media-brand:var(--accent);--video-brand:var(--accent);--video-font-family:var(--font-geist-sans),sans-serif;background:#111;border:0;width:min(100%,96vh);min-height:0;margin-inline:auto;display:block;flex:none!important;height:auto!important}.player video{object-fit:contain;width:100%;height:100%}.player .vds-slider-chapter:not([data-ended])~.vds-slider-chapter[data-ended]>.vds-slider-track-fill{width:0}.player-empty{aspect-ratio:16/9;color:#a9aaa2;text-align:center;background:#20211d;place-items:center;padding:24px;display:grid}.lesson-actions{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:14px;padding:18px 0;display:flex}.lesson-actions p{color:var(--muted);margin:0;font-size:13px}.lesson-nav{align-items:center;gap:8px;margin-left:auto;display:flex}.secondary{border:1px solid var(--line);background:var(--surface);height:36px;color:var(--ink);cursor:pointer;border-radius:8px;align-items:center;gap:5px;padding:0 11px;font-size:13px;font-weight:600;display:inline-flex}.secondary:hover{border-color:#aaa99f}.secondary:disabled{color:#aaa99f;cursor:not-allowed;background:0 0}.primary{background:var(--ink);color:#fff;cursor:pointer;border:0;border-radius:8px;padding:10px 15px;font-size:14px;font-weight:620}.primary:hover{background:#34352f}.primary:disabled{opacity:.5;cursor:not-allowed}.notes-section{flex:none;min-height:180px;padding:22px 2px 20px;overflow:visible}.notes-header{justify-content:space-between;align-items:center;gap:16px;margin-bottom:14px;display:flex}.notes-header h2{letter-spacing:-.025em;margin:0;font-size:17px}.resource-tabs{border-bottom:1px solid var(--line);align-items:center;gap:18px;display:flex}.resource-tabs button{color:var(--muted);cursor:pointer;background:0 0;border:0;border-bottom:2px solid #0000;margin-bottom:-1px;padding:0 0 9px;font-size:13px;font-weight:620}.resource-tabs button:hover{color:var(--ink)}.resource-tabs button.active{color:var(--ink);border-bottom-color:var(--accent)}.notes-empty{color:var(--muted);margin:0;font-size:13px}.notes-editor textarea{resize:vertical;border:1px solid var(--line);background:var(--surface);width:100%;min-height:190px;color:var(--ink);font:13px/1.55 var(--font-geist-mono),monospace;border-radius:8px;padding:13px}.notes-editor textarea:focus{outline:2px solid var(--accent);outline-offset:1px}.editor-actions{justify-content:flex-end;gap:8px;margin-top:10px;display:flex}.markdown{color:#2c2d28;max-width:780px;font-size:14px;line-height:1.65}.markdown>:first-child{margin-top:0}.markdown h1,.markdown h2,.markdown h3{color:var(--ink);letter-spacing:-.025em;margin:1.4em 0 .55em;line-height:1.25}.markdown h1{font-size:22px}.markdown h2{font-size:18px}.markdown h3{font-size:15px}.markdown p,.markdown ul,.markdown ol,.markdown blockquote,.markdown pre{margin:.7em 0}.markdown code{font-family:var(--font-geist-mono),monospace;background:#e8e6df;border-radius:4px;padding:2px 4px;font-size:.92em}.markdown pre{color:#f4f2ed;background:#20211d;border-radius:8px;padding:13px;overflow:auto}.markdown pre code{background:0 0;padding:0}.markdown a{color:var(--accent-dark)}.markdown blockquote{border-left:3px solid var(--line);color:var(--muted);padding-left:13px}.transcript-content{max-width:820px}.transcript-list{flex-direction:column;display:flex}.transcript-list>button{border:0;border-top:1px solid var(--line);color:var(--ink);text-align:left;cursor:pointer;background:0 0;grid-template-columns:46px 1fr;gap:12px;padding:13px 4px;display:grid}.transcript-list>button:first-child{border-top:0;padding-top:2px}.transcript-list>button:hover p{color:var(--accent-dark)}.transcript-list span{color:var(--accent-dark);font:550 11px var(--font-geist-mono),monospace;padding-top:3px}.transcript-list p{color:#3e3f39;margin:0;font-size:13px;line-height:1.55;transition:color .15s}.chapter-list{flex-direction:column;max-width:620px;display:flex}.chapter-list>button{border:0;border-top:1px solid var(--line);color:var(--ink);text-align:left;cursor:pointer;background:0 0;grid-template-columns:46px 1fr;gap:12px;padding:12px 4px;display:grid}.chapter-list>button:first-child{border-top:0;padding-top:2px}.chapter-list>button:hover strong{color:var(--accent-dark)}.chapter-list span{color:var(--accent-dark);font:550 11px var(--font-geist-mono),monospace;padding-top:2px}.chapter-list strong{font-size:13px;font-weight:620;line-height:1.45;transition:color .15s}.course-sidebar{overscroll-behavior:contain;border-left:1px solid var(--line);background:#efeee9;min-height:0;padding:28px 20px;overflow-y:auto}.course-sidebar h2{letter-spacing:-.025em;margin:0 0 7px;font-size:17px}.course-sidebar>p{color:var(--muted);margin:0 0 22px;font-size:13px}.course-sidebar-toolbar{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:10px;min-height:41px;margin:-8px 0 24px;padding-bottom:12px;display:flex}.course-sidebar-toolbar>strong{align-items:center;gap:7px;font-size:13px;display:flex}.course-sidebar-toolbar button{border:1px solid var(--line);background:var(--surface);height:31px;color:var(--muted);cursor:pointer;border-radius:7px;align-items:center;gap:6px;padding:0 9px;font-size:11px;font-weight:650;display:flex}.course-sidebar-toolbar button:hover,.course-sidebar-toolbar button.active{color:var(--ink);border-color:#aaa99f}.course-chat-panel{opacity:0;pointer-events:none;background:#f5f4ef;border-left:1px solid #0000;flex-direction:column;min-width:0;min-height:0;padding:0;transition:opacity .15s,transform .18s,padding .18s,border-color .18s;display:flex;overflow:hidden;transform:translate(12px)}.course-chat-panel.open{border-left-color:var(--line);opacity:1;pointer-events:auto;padding:20px;transform:translate(0)}.chat-panel-header{border-bottom:1px solid var(--line);flex:none;justify-content:space-between;align-items:center;gap:12px;height:44px;margin:-4px 0 14px;padding-bottom:12px;display:flex}.chat-panel-header strong{align-items:center;gap:8px;font-size:14px;display:flex}.chat-panel-header button{width:30px;height:30px;color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:7px;place-items:center;display:grid}.chat-panel-header button:hover{color:var(--ink);background:#e9e7e0}.lesson-list{margin:0;padding:0;list-style:none}.viewing-day-boundary{border-top:2px solid var(--ink);margin:24px 0 0;padding:12px 8px 10px}.lesson-list>li:first-child .viewing-day-boundary{margin-top:0}.viewing-day-boundary>div{justify-content:space-between;align-items:baseline;gap:12px;display:flex}.viewing-day-boundary strong{letter-spacing:-.015em;font-size:13px}.viewing-day-boundary span{color:var(--muted);font:500 11px var(--font-geist-mono),monospace}.viewing-day-boundary p{color:var(--muted);margin:3px 0 0;font-size:11px;line-height:1.4}.viewing-skip-boundary{color:var(--muted);border-top:1px dashed #aaa99f;border-bottom:1px dashed #aaa99f;flex-direction:column;gap:3px;margin-top:24px;padding:11px 8px;display:flex}.viewing-skip-boundary strong{color:var(--ink);font-size:12px}.viewing-skip-boundary span{font-size:11px}.module-label{color:var(--ink);padding:22px 8px 8px;font-size:12px;font-weight:680}.lesson-link{border-top:1px solid var(--line);color:var(--ink);grid-template-columns:24px 1fr auto;align-items:start;gap:9px;padding:12px 8px;font-size:13px;line-height:1.35;text-decoration:none;display:grid}.lesson-link:hover,.lesson-link.active{background:#e5e3dd}.lesson-index{font:500 11px var(--font-geist-mono),monospace;color:var(--muted);padding-top:2px}.lesson-duration{color:var(--muted);font-size:11px}.check{color:var(--accent)}.course-chat{flex-direction:column;flex:1;min-width:0;min-height:0;display:flex}.chat-session-bar{border-bottom:1px solid var(--line);grid-template-columns:minmax(0,1fr) 36px;gap:7px;padding-bottom:13px;display:grid}.chat-session-select{min-width:0;position:relative}.chat-session-select select{appearance:none;border:1px solid var(--line);background:var(--surface);width:100%;min-width:0;height:36px;color:var(--ink);font:600 12px var(--font-geist-sans),sans-serif;text-overflow:ellipsis;white-space:nowrap;cursor:pointer;border-radius:7px;padding:0 31px 0 10px;overflow:hidden}.chat-session-select select:focus{outline:2px solid var(--accent);outline-offset:1px}.chat-session-select svg{color:var(--muted);pointer-events:none;position:absolute;top:50%;right:10px;transform:translateY(-50%)}.chat-session-bar button{border:1px solid var(--line);background:var(--surface);width:36px;height:36px;color:var(--muted);cursor:pointer;border-radius:7px;place-items:center;display:grid}.chat-session-bar button:hover{color:var(--ink);border-color:#aaa99f}.chat-session-bar button:disabled{opacity:.45;cursor:not-allowed}.chat-intro{padding:12px 0 17px}.chat-intro h3{letter-spacing:-.025em;margin:0 0 6px;font-size:17px}.chat-intro p{color:var(--muted);margin:0;font-size:12px;line-height:1.5}.chat-messages{flex:1;min-width:0;min-height:0;padding:7px 2px 18px 0;overflow:hidden auto}.chat-starters{flex-direction:column;display:flex}.chat-starters button{border:0;border-bottom:1px solid var(--line);color:#3f403a;text-align:left;cursor:pointer;background:0 0;padding:13px 2px;font-size:12px;line-height:1.4}.chat-starters button:hover{color:var(--accent-dark)}.chat-message{border-bottom:1px solid var(--line);color:#30312c;overflow-wrap:anywhere;word-break:break-word;min-width:0;max-width:100%;padding:15px 4px;font-size:13px;line-height:1.58}.chat-message.user{width:fit-content;max-width:92%;color:var(--ink);background:#f7f6f2;border:1px solid #d8d5cc;border-radius:9px;margin:10px 0 6px auto;padding:10px 12px;font-weight:620}.chat-message.user:before{content:"You";color:var(--muted);font:550 10px var(--font-geist-mono),monospace;margin-bottom:4px;display:block}.chat-message.assistant:before{content:"Academy";color:var(--accent-dark);font:550 10px var(--font-geist-mono),monospace;margin-bottom:4px;display:block}.chat-message.pending,.chat-message.streaming{color:var(--muted)}.chat-answer-loader{color:#55564f;align-items:center;gap:10px;min-height:24px;font-size:12px;display:flex}.chat-message-body>.chat-answer-loader:not(:first-child){margin-top:10px}.chat-answer-loader-mark{justify-content:space-between;align-items:center;width:18px;height:14px;display:flex}.chat-answer-loader-mark i{background:var(--accent);width:3px;height:8px;animation:.9s ease-in-out infinite chat-answer-pulse}.chat-answer-loader-mark i:nth-child(2){animation-delay:.12s}.chat-answer-loader-mark i:nth-child(3){animation-delay:.24s}@keyframes chat-answer-pulse{0%,60%,to{opacity:.42;height:5px}30%{opacity:1;height:14px}}.chat-message-body,.chat-message-body>*{min-width:0;max-width:100%}.chat-message-body>:first-child{margin-top:0}.chat-message-body>:last-child{margin-bottom:0}.chat-message-body p{margin:.55em 0}.chat-message-body ul,.chat-message-body ol{margin:.55em 0;padding-left:20px}.chat-message-body ul{list-style:outside}.chat-message-body ol{list-style:decimal}.chat-message-body li::marker{color:var(--accent-dark)}.chat-message-body a{color:var(--accent-dark);text-underline-offset:2px;overflow-wrap:anywhere;-webkit-text-decoration:underline #d0a08f;text-decoration:underline #d0a08f}.chat-message-body pre{max-width:100%;overflow-x:auto}.chat-message-body img{max-width:100%;height:auto}.chat-message-body a:hover{-webkit-text-decoration-color:var(--accent-dark);-webkit-text-decoration-color:var(--accent-dark);-webkit-text-decoration-color:var(--accent-dark);text-decoration-color:var(--accent-dark)}.chat-form{border-top:1px solid var(--line);grid-template-columns:1fr 38px;align-items:end;gap:7px;padding-top:12px;display:grid}.chat-form textarea{resize:none;border:1px solid var(--line);background:var(--surface);width:100%;color:var(--ink);font:13px/1.45 var(--font-geist-sans),sans-serif;border-radius:8px;padding:10px 11px}.chat-form textarea:focus{outline:2px solid var(--accent);outline-offset:1px}.chat-form button{background:var(--ink);color:#fff;cursor:pointer;border:0;border-radius:8px;place-items:center;width:38px;height:38px;display:grid}.chat-form button:disabled{opacity:.4;cursor:not-allowed}.loading{min-height:100vh;color:var(--muted);place-items:center;display:grid}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.admin-main{width:min(1180px,100% - 48px);margin:0 auto;padding:42px 0 80px}.admin-heading h1{letter-spacing:-.04em;margin:0;font-size:30px}.admin-tabs{border-bottom:1px solid var(--line);gap:24px;margin-top:26px;display:flex}.admin-tabs button{color:var(--muted);cursor:pointer;background:0 0;border:0;border-bottom:2px solid #0000;margin-bottom:-1px;padding:0 0 11px;font-size:13px;font-weight:650}.admin-tabs button:hover{color:var(--ink)}.admin-tabs button.active{color:var(--ink);border-bottom-color:var(--accent)}.analytics-section{margin-top:30px}.analytics-toolbar{justify-content:space-between;align-items:flex-end;gap:24px;min-height:66px;display:flex}.analytics-toolbar>div:first-child{width:min(420px,100%)}.analytics-toolbar label{margin-bottom:7px;font-size:12px;font-weight:650;display:block}.analytics-toolbar select{border:1px solid var(--line);background:var(--surface);width:100%;height:40px;color:var(--ink);font:14px var(--font-geist-sans),sans-serif;cursor:pointer;border-radius:8px;padding:0 34px 0 11px}.analytics-toolbar select:focus,.analytics-search input:focus{outline:2px solid var(--accent);outline-offset:1px}.analytics-course-meta{color:var(--muted);padding-bottom:11px;font-size:12px}.analytics-summary{border-top:1px solid var(--line);border-bottom:1px solid var(--line);grid-template-columns:repeat(4,1fr);margin:30px 0 0;padding:0;display:grid}.analytics-summary>div{border-left:1px solid var(--line);padding:19px 20px}.analytics-summary>div:first-child{border-left:0;padding-left:0}.analytics-summary dt{color:var(--muted);font-size:12px}.analytics-summary dd{font:650 27px/1 var(--font-geist-mono),monospace;letter-spacing:-.04em;margin:5px 0 0}.analytics-table-toolbar{justify-content:space-between;align-items:flex-end;gap:24px;margin-top:34px;display:flex}.analytics-table-toolbar h2,.admin-section-heading h2{letter-spacing:-.025em;margin:0;font-size:18px}.analytics-table-toolbar p,.admin-section-heading p{color:var(--muted);margin:5px 0 0;font-size:12px;line-height:1.5}.analytics-search{width:min(290px,100%)}.analytics-search input{border:1px solid var(--line);background:var(--surface);width:100%;height:38px;color:var(--ink);font:13px var(--font-geist-sans),sans-serif;border-radius:8px;padding:0 11px}.analytics-search input::placeholder{color:#8b8a82}.analytics-table-wrap{border-top:1px solid var(--line);margin-top:15px;overflow-x:auto}.analytics-table{border-collapse:collapse;table-layout:fixed;width:100%;min-width:880px}.analytics-table th{height:39px;color:var(--muted);text-align:left;font-size:11px;font-weight:650}.analytics-table th:first-child{width:27%}.analytics-table th:nth-child(2){width:22%}.analytics-table th:nth-child(3){width:33%}.analytics-table th:nth-child(4){width:18%}.analytics-table td{border-top:1px solid var(--line);vertical-align:middle;height:76px;padding:12px 18px 12px 0;font-size:13px}.analytics-table th:not(:last-child),.analytics-table td:not(:last-child){padding-right:24px}.analytics-person{align-items:center;gap:10px;min-width:0;display:flex}.analytics-person img,.analytics-avatar{object-fit:cover;border-radius:50%;flex:0 0 34px;width:34px;height:34px}.analytics-avatar{color:#464740;font:650 11px var(--font-geist-mono),monospace;background:#dedbd3;place-items:center;display:grid}.analytics-person>span:last-child,.analytics-lesson,.analytics-activity{flex-direction:column;gap:3px;min-width:0;display:flex}.analytics-person strong,.analytics-lesson strong{text-overflow:ellipsis;white-space:nowrap;font-size:13px;overflow:hidden}.analytics-person small,.analytics-lesson small,.analytics-activity span{color:var(--muted);font-size:11px}.analytics-progress-copy{justify-content:space-between;align-items:baseline;gap:8px;margin-bottom:8px;display:flex}.analytics-progress-copy strong{font:650 13px var(--font-geist-mono),monospace}.analytics-progress-copy span{color:var(--muted);white-space:nowrap;font-size:10px}.analytics-progress-bar{background:#dfddd6;height:3px;overflow:hidden}.analytics-progress-bar span{background:var(--accent);height:100%;display:block}.analytics-activity strong{color:var(--accent-dark);font-size:11px}.analytics-muted{color:var(--muted)}.analytics-no-results,.admin-empty,.admin-section-loading{color:var(--muted);padding:38px 0;font-size:13px}.user-management{margin-top:30px}.admin-form{border-bottom:1px solid var(--line);margin-top:36px;padding-bottom:24px}.admin-form>label{margin-bottom:8px;font-size:13px;font-weight:650;display:block}.admin-form>div{gap:8px;display:flex}.admin-form input{border:1px solid var(--line);background:var(--surface);height:42px;color:var(--ink);font:14px var(--font-geist-sans),sans-serif;border-radius:8px;flex:1;padding:0 12px}.admin-form input:focus{outline:2px solid var(--accent);outline-offset:1px}.form-success,.form-error{margin:14px 0 0;font-size:13px}.form-success{color:#36633b}.form-error{color:#a52b18}.user-table{border-top:1px solid var(--line);margin-top:30px}.user-row{border-bottom:1px solid var(--line);grid-template-columns:minmax(0,1fr) 150px 120px;align-items:center;gap:16px;min-height:64px;font-size:13px;display:grid}.user-row>span:first-child{flex-direction:column;gap:3px;display:flex}.user-row strong{font-size:14px}.user-row small{color:var(--muted);font-size:12px}.user-row>span:last-child{text-align:right}.user-row-head{min-height:40px;color:var(--muted);font-size:11px;font-weight:650}.danger{color:#a52b18}@media (max-width:1200px) and (min-width:901px){.course-layout.chat-open{grid-template-columns:minmax(0,1fr) 340px}.course-layout.chat-open .course-sidebar{display:none}}@media (max-width:900px){.course-grid{grid-template-columns:repeat(2,1fr)}.course-layout,.course-layout.chat-open{grid-template-columns:1fr;height:auto;min-height:calc(100vh - 64px);transition:none;overflow:visible}.lesson{overflow:visible}.lesson>.player{width:100%}.player{aspect-ratio:16/9;flex:none}.course-chat-panel{border-top:0;border-left:0;order:2;height:0}.course-chat-panel.open{border-top:1px solid var(--line);height:min(720px,100vh - 64px)}.course-sidebar{border-left:0;border-top:1px solid var(--line);order:3;overflow:visible}.login{grid-template-columns:1fr}.login-copy{min-height:55vh}.login-panel{min-height:45vh}.analytics-summary{grid-template-columns:repeat(2,1fr)}.analytics-summary>div:nth-child(3){border-left:0;border-top:1px solid var(--line);padding-left:0}.analytics-summary>div:nth-child(4){border-top:1px solid var(--line)}}@media (prefers-reduced-motion:reduce){.course-layout,.course-chat-panel{transition:none}.chat-answer-loader-mark i{opacity:.75;animation:none}}@media (max-width:600px){.topbar{padding:0 18px}.main{width:calc(100% - 32px);padding-top:36px}.course-grid{grid-template-columns:1fr}.page-title{font-size:28px}.user-name{display:none}.lesson{padding:24px 16px 48px}.lesson-heading{min-height:86px}.lesson-actions{flex-direction:column;align-items:flex-start}.notes-section{overflow:visible}.admin-main{width:calc(100% - 32px);padding-top:30px}.admin-heading h1{font-size:26px}.admin-tabs{margin-top:22px}.analytics-toolbar,.analytics-table-toolbar{flex-direction:column;align-items:stretch}.analytics-toolbar>div:first-child,.analytics-search{width:100%}.analytics-course-meta{padding-bottom:0}.analytics-summary>div{padding:16px 12px}.analytics-summary>div:first-child,.analytics-summary>div:nth-child(3){padding-left:0}.analytics-summary dd{font-size:23px}.admin-form>div{flex-direction:column}.user-row{grid-template-columns:1fr auto}.user-row-head{display:none}.user-row>span:last-child{text-align:left;grid-column:1/-1;padding-bottom:12px}.login-copy{padding:32px 24px}.login-copy h1{font-size:48px}.login-panel{padding:24px}}@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}