@font-face{font-family:DM Sans Variable;font-style:normal;font-display:swap;font-weight:100 1000;src:url(../media/dm-sans-latin-ext-wght-normal.0x9ccydb91kkt.woff2)format("woff2-variations");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:DM Sans Variable;font-style:normal;font-display:swap;font-weight:100 1000;src:url(../media/dm-sans-latin-wght-normal.0fpdy-lufm69d.woff2)format("woff2-variations");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:Newsreader Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(../media/newsreader-vietnamese-wght-normal.0r91virwwy7i7.woff2)format("woff2-variations");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:Newsreader Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(../media/newsreader-latin-ext-wght-normal.0b8fr24hsg_rp.woff2)format("woff2-variations");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:Newsreader Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(../media/newsreader-latin-wght-normal.1tkuwlnjs9jrl.woff2)format("woff2-variations");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:Newsreader Variable;font-style:italic;font-display:swap;font-weight:200 800;src:url(../media/newsreader-vietnamese-wght-italic.1ymvw8tmqwo_9.woff2)format("woff2-variations");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:Newsreader Variable;font-style:italic;font-display:swap;font-weight:200 800;src:url(../media/newsreader-latin-ext-wght-italic.2xfwkckxizj7s.woff2)format("woff2-variations");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:Newsreader Variable;font-style:italic;font-display:swap;font-weight:200 800;src:url(../media/newsreader-latin-wght-italic.0psn95x5q5t7r.woff2)format("woff2-variations");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}
:root{color:#e9eee5;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;--bg:#141916;--sidebar:#101512;--panel:#1b211c;--line:#2b332d;--muted:#909d92;--faint:#647568;--accent:#d5e9b8;--serif:"Newsreader Variable", Georgia, serif;--sidebar-width:270px;background:#141916;font-family:DM Sans Variable,sans-serif}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{color:inherit;cursor:pointer;background:0 0;border:0}button:disabled{cursor:default}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--accent);outline-offset:5px}button,a{touch-action:manipulation}svg{flex-shrink:0}::selection{color:#18221a;background:#d5e9b8}::-webkit-scrollbar{width:5px;height:4px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#3b493d;border-radius:8px}h1,h2,h3,p{margin:0}em{font-family:var(--serif);font-weight:400}kbd{white-space:nowrap;font-family:inherit;font-size:10px;line-height:1.6}.eyebrow{letter-spacing:1.65px;color:var(--muted);align-items:center;gap:7px;font-size:10px;font-weight:600;display:flex}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.skip-link{z-index:50;background:var(--accent);color:#172116;padding:12px 20px;position:fixed;top:-70px;left:20px}.skip-link:focus{top:10px}.icon-button{color:var(--muted);border-radius:7px;justify-content:center;align-items:center;padding:8px;display:flex}.icon-button:hover{color:var(--accent);background:#263027}.text-link{color:var(--accent);align-items:center;gap:7px;padding:0;font-size:12px;font-weight:500;display:inline-flex}.text-link:hover{color:#fff}.light-button{background:var(--accent);color:#172015;border-radius:6px;justify-content:center;align-items:center;gap:12px;padding:12px 17px;font-size:12px;font-weight:650;transition:background .2s;display:inline-flex}.light-button:hover{background:#e7f2d7}.sidebar{width:var(--sidebar-width);background:var(--sidebar);border-right:1px solid var(--line);z-index:20;flex-direction:column;display:flex;position:fixed;inset:0 auto 0 0}.sidebar-top{padding:28px 27px 24px;position:relative}.brand{align-items:center;gap:9px;width:max-content;display:flex}.brand img{width:31px;height:31px}.brand>span{letter-spacing:-1.5px;font-size:25px;font-weight:550;line-height:1}.brand-point{color:var(--accent)}.brand-caption{letter-spacing:2px;color:#7c8a7e;margin:13px 0 0 40px;font-size:8px}.course-overview{border-top:1px solid #263027;padding:22px 24px 20px}.course-overview>.eyebrow{color:#768778;letter-spacing:1.6px;font-size:9px}.course-name{justify-content:space-between;align-items:center;margin-top:13px;display:flex}.course-name>span{letter-spacing:-.5px;font-size:20px;font-weight:450;line-height:1.3}.course-name svg{color:#a8bb9c;transform:rotate(-13deg)}.course-progress-label{color:var(--muted);justify-content:space-between;align-items:center;margin-top:20px;font-size:9px;display:flex}.course-progress-label strong{color:#c5d9ad;font-weight:500}.course-progress{background:#30392f;border-radius:2px;height:3px;margin-top:9px;overflow:hidden}.course-progress i{background:var(--accent);height:100%;transition:width .3s;display:block}.lesson-search{color:#758977;background:#19201a;border:1px solid #2c352d;border-radius:5px;align-items:center;gap:8px;margin:0 18px 14px;padding:9px 10px;display:flex}.lesson-search input{width:100%;min-width:0;color:var(--accent);background:0 0;border:0;outline:none;font-size:10px}.lesson-search input::placeholder{color:#829085}.lesson-search kbd{color:#6f7b70;font-size:8px}.lesson-list{flex:1;min-height:0;padding:0 12px 20px;overflow-y:auto}.lesson-group{margin-top:7px}.lesson-group h2{letter-spacing:1.6px;text-transform:uppercase;color:#758478;padding:14px 13px 9px;font-size:9px;font-weight:500}.lesson-link{text-align:left;border:1px solid #0000;border-radius:5px;align-items:center;gap:12px;width:100%;margin-bottom:3px;padding:10px 12px;transition:background .15s;display:flex;position:relative}.lesson-link:hover{background:#1a231b}.lesson-number{font-variant-numeric:tabular-nums;color:#7c8b7f;border:1px solid #38423a;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:24px;height:24px;font-size:10px;display:flex}.lesson-label{flex:1;min-width:0}.lesson-label strong{color:#c0c9be;font-size:11px;font-weight:450;line-height:1.45;display:block}.lesson-label small{color:#77867b;margin-top:2px;font-size:8px;line-height:1.6;display:block}.lesson-link.selected{background:#253023;border-color:#384630}.lesson-link.selected .lesson-number{color:#1b2617;background:var(--accent);border-color:var(--accent)}.lesson-link.selected .lesson-label strong{color:#e4eedb}.lesson-link.selected .lesson-label small{color:#b3c998}.lesson-chevron{color:#4c5c4f}.current-dot{background:var(--accent);border-radius:50%;width:5px;height:5px;margin-left:3px}.lesson-link.completed .lesson-number{color:var(--accent);border-color:#5d7651}.no-results{color:var(--muted);padding:20px;font-size:12px;line-height:1.8}.sidebar-bottom{border-top:1px solid #29332a;padding:15px 19px 17px}.sidebar-bottom>button{text-align:left;align-items:center;gap:10px;width:100%;padding:2px 0 16px;display:flex}.install-icon{color:#c0d3ad;background:#222c23;border:1px solid #354435;border-radius:7px;place-items:center;width:31px;height:31px;display:grid}.sidebar-bottom button>span:nth-child(2){flex:1}.sidebar-bottom strong{color:#d2ddcc;font-size:10px;font-weight:500;display:block}.sidebar-bottom small{color:#7e8e81;margin-top:3px;font-size:9px;display:block}.sidebar-bottom button>svg{color:#8ba180}.sidebar-source{letter-spacing:1.2px;color:#607166;text-align:center;font-size:7px;display:block}.mobile-close,.sidebar-backdrop,.mobile-brand{display:none}.main-panel{margin-left:var(--sidebar-width);min-width:0}.topbar{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:20px;height:67px;padding:0 38px;display:flex}.breadcrumb{align-items:center;gap:11px;font-size:10px;display:flex}.breadcrumb>span{color:#7d8a7e}.breadcrumb>svg{color:#516552}.breadcrumb strong{color:#bac5b7;font-weight:450}.topbar-right{align-items:center;gap:20px;display:flex}.save-status{color:#90a284;align-items:center;gap:6px;font-size:9px;display:flex}.manual-toplink{color:#bac8b4;border-left:1px solid #343e35;align-items:center;gap:8px;padding-left:20px;font-size:10px;display:flex}.manual-toplink:hover{color:var(--accent)}.shortcut-trigger{padding:4px}.lesson-page{max-width:1116px;margin:0 auto;padding:34px 39px 23px}.lesson-heading{justify-content:space-between;align-items:center;gap:20px;padding-bottom:27px;display:flex}.lesson-heading h1{letter-spacing:-1.1px;margin-top:11px;font-size:31px;font-weight:450;line-height:1.25}.lesson-heading h1>span{color:var(--accent)}.lesson-heading>div>p{color:#9aa898;max-width:620px;margin-top:9px;font-size:11px;line-height:1.7}.tiny-line{background:#91aa75;width:15px;height:1px;margin-right:3px}.heading-dot{color:#5b705d;margin:0 3px}.lesson-heading .eyebrow{letter-spacing:1.6px;color:#8d9f85;font-size:8px}.mode-area{text-align:center;flex-shrink:0}.mode-switch{background:#111712;border:1px solid #384134;border-radius:7px;gap:2px;padding:4px;display:flex}.mode-switch button{color:#96a492;white-space:nowrap;border-radius:4px;align-items:center;gap:8px;padding:10px 13px;font-size:10px;font-weight:500;transition:background .2s,color .2s;display:flex}.mode-switch button.active{background:var(--accent);color:#263420;box-shadow:0 1px 5px #0003}.mode-switch button:not(.active):hover{color:#e8efde;background:#263024}.mode-area>span{color:#7e8e78;margin-top:9px;font-size:8px;display:block}.player-frame{aspect-ratio:16/9;background:#0e1410;border:1px solid #3d4235;border-radius:8px;position:relative;overflow:hidden}.player-frame video{object-fit:contain;width:100%;height:100%;position:absolute;inset:0}.player-frame:fullscreen{aspect-ratio:auto;border:0;border-radius:0;width:100%;height:100%}.poster-treatment{background:linear-gradient(90deg,#09130dd6,#0c150f75 45%,#0000 78%),linear-gradient(#0000 70%,#0a100b40);flex-direction:column;justify-content:center;align-items:flex-start;padding:38px 5.3%;display:flex;position:absolute;inset:0}.poster-kicker{letter-spacing:2px;color:#e0e7d0;margin-bottom:22px;font-size:8px}.poster-treatment h2{letter-spacing:-4px;color:#f1f0dc;font-size:clamp(50px,5.7vw,86px);font-weight:450;line-height:.95}.poster-treatment h2 em{letter-spacing:-2.5px;color:#e5edcf;font-size:1.12em;font-weight:400}.poster-treatment>p{letter-spacing:.1px;color:#d8dfcc;margin-top:20px;font-size:12px}.big-play{color:#243120;background:#edf1d9;border-radius:5px;align-items:center;gap:10px;margin-top:28px;padding:13px 16px;font-size:10px;font-weight:650;display:flex}.big-play small{color:#5c6b50;border-left:1px solid #a6b49d;margin-left:6px;padding-left:11px;font-size:9px;font-weight:450}.big-play:hover{background:#fff;transform:translateY(-1px)}.poster-note{letter-spacing:.2px;color:#a4b39d;margin-top:14px;font-size:8px}.center-play{color:var(--accent);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#142016cc;border:1px solid #d5e9b880;border-radius:50%;place-items:center;width:65px;height:65px;display:grid;position:absolute;top:45%;left:50%;transform:translate(-50%,-50%)}.player-controls{background:linear-gradient(#0000,#040a07e6);padding:34px 17px 11px;position:absolute;inset:auto 0 0}.scrubber{appearance:none;cursor:pointer;background:linear-gradient(to right, var(--accent) var(--played), #a4b49c55 var(--played));border:0;border-radius:3px;width:100%;height:3px;padding:0;display:block}.scrubber::-webkit-slider-thumb{appearance:none;background:var(--accent);border-radius:50%;width:8px;height:8px;box-shadow:0 0 0 3px #d5e9b815}.scrubber::-moz-range-thumb{background:var(--accent);border:0;border-radius:50%;width:8px;height:8px}.controls-row{color:#e6eedf;align-items:center;gap:12px;height:25px;margin-top:10px;display:flex}.controls-row>button{opacity:.9;place-items:center;padding:0;display:grid}.controls-row>button:hover{opacity:1;color:var(--accent)}.time-display{font-variant-numeric:tabular-nums;white-space:nowrap;font-size:9px}.time-display>span{color:#a9b5a3;margin-left:3px}.control-chapter{color:#c3cfb9;margin-left:8px;font-size:8px}.controls-spacer{flex:1}.speed-control select{color:#e2ecd6;appearance:none;text-align:center;cursor:pointer;background:0 0;border:0;padding:3px;font-size:9px}.speed-control option{background:#172119}.media-caption{color:#71836f;align-items:center;gap:12px;margin-top:9px;font-size:8px;display:flex}.media-caption>span:first-child{color:#b1c49f;align-items:center;gap:6px;display:flex}.media-caption>span:nth-child(2){margin-left:auto}.media-caption>a{color:var(--accent);align-items:center;gap:4px;display:flex}.status-dot{background:#a4c688;border-radius:50%;flex-shrink:0;width:4px;height:4px;display:inline-block}.section-heading{color:#bdcbb5;justify-content:space-between;align-items:center;margin-top:24px;margin-bottom:11px;font-size:10px;display:flex}.section-heading>span:last-child{color:#70816e;align-items:center;gap:6px;font-size:9px;display:flex}.chapter-markers{scroll-snap-type:x proximity;gap:9px;padding-bottom:3px;display:flex;overflow-x:auto}.chapter-marker{scroll-snap-align:start;text-align:left;background:#171e18;border:1px solid #303a30;border-radius:5px;flex:1;min-width:145px;padding:12px 12px 10px;transition:border-color .15s,background .15s}.chapter-marker:hover{background:#202b1e;border-color:#667957}.chapter-marker.active{background:#263021;border-color:#6b8051}.marker-top{color:#788f71;font-variant-numeric:tabular-nums;justify-content:space-between;align-items:center;font-size:8px;display:flex}.chapter-marker.active .marker-top{color:#bed4a7}.chapter-marker strong{color:#b8c7b0;white-space:normal;min-height:30px;margin-top:6px;font-size:10px;font-weight:450;line-height:1.5;display:block}.chapter-marker.active strong{color:#e6efda}.marker-line{background:#34422e;border-radius:2px;height:2px;margin-top:12px;display:block;overflow:hidden}.marker-line i{background:#c9dda8;height:100%;transition:width .3s;display:block}.lesson-action-row{justify-content:space-between;align-items:center;margin:16px 0 28px;display:flex}.lesson-action-row>span{color:#768b70;align-items:center;gap:7px;font-size:9px;display:flex}.little-orbit{border:1px solid #657e55;border-radius:50%;width:9px;height:9px;position:relative}.little-orbit:after{content:"";background:#aec893;border-radius:50%;width:2px;height:2px;position:absolute;top:-1px;left:1px}.complete-button{color:#b8c9ac;align-items:center;gap:7px;padding:7px 0 7px 8px;font-size:9px;display:flex}.complete-button:hover{color:var(--accent)}.empty-check{border:1px solid #768868;border-radius:50%;width:13px;height:13px}.is-complete{color:#d9edb9}.study-tabs{border-bottom:1px solid #394234;align-items:center;gap:26px;scroll-margin-top:20px;display:flex;overflow-x:auto}.study-tabs>button{color:#859680;white-space:nowrap;border-bottom:2px solid #0000;align-items:center;gap:7px;padding:15px 0 16px;font-size:10px;display:flex;position:relative}.study-tabs>button:hover{color:#e3edda}.study-tabs>button.active{color:#d9e8c8;border-color:#c8dbaf}.tab-new{letter-spacing:.2px;color:#c1d4ac;border:1px solid #53674a;border-radius:3px;padding:1px 4px;font-size:7px}.study-content{outline:none;min-height:300px;padding-top:32px}.summary-intro{justify-content:space-between;align-items:center;gap:20px;display:flex}.summary-intro .eyebrow{color:#8b9c80;font-size:8px}.summary-intro h2,.study-toolbar h2{letter-spacing:-.7px;margin-top:11px;font-size:28px;font-weight:400;line-height:1.25}.summary-intro h2 em{color:#c8d7b8;font-size:1.1em}.summary-stamp{color:#809474;border:1px solid #33402f;border-radius:5px;flex-shrink:0;align-items:center;gap:10px;margin-right:8px;padding:10px 15px;font-size:8px;line-height:1.6;display:flex;transform:rotate(-4deg)}.summary-stamp svg{color:#abc08d}.summary-lead{color:#a9b8a0;max-width:740px;margin-top:21px;font-size:12px;line-height:1.95}.takeaway-grid{grid-template-columns:repeat(3,1fr);gap:13px;margin-top:26px;display:grid}.takeaway-grid article{border-top:1px solid #43503b;padding:16px 16px 16px 0;position:relative}.takeaway-number{color:#a4ba8d;letter-spacing:1.5px;font-size:9px}.takeaway-grid p{color:#bccab1;margin-top:11px;font-size:11px;line-height:1.9}.learning-goals{border-top:1px solid #2e392c;margin-top:6px;padding-top:23px}.learning-goals h3{letter-spacing:-.1px;font-size:13px;font-weight:500}.learning-goals ul{gap:10px;margin:13px 0 0;padding:0;list-style:none;display:grid}.learning-goals li{color:#9cae92;align-items:flex-start;gap:9px;font-size:11px;line-height:1.6;display:flex}.learning-goals svg{color:#9eb789;margin-top:1px}.book-invitation{text-align:left;background:linear-gradient(110deg,#202a1e,#1a221a);border:1px solid #394634;border-radius:6px;align-items:center;gap:15px;width:100%;margin-top:29px;padding:19px 20px;display:flex}.book-invitation-icon{color:#bad0a3}.book-invitation>span:nth-child(2){flex:1}.book-invitation strong{color:#d0dec3;font-size:11px;font-weight:500;display:block}.book-invitation small{color:#849b78;margin-top:5px;font-size:9px;display:block}.book-invitation>svg{color:#a4be8d}.book-invitation:hover{border-color:#758765}.lesson-footer{border-top:1px solid #323e2d;grid-template-columns:1fr 1fr;align-items:center;gap:22px;margin-top:37px;padding:26px 0;display:grid}.previous-lesson,.next-lesson{text-align:left;color:#c4d1b9;align-items:center;gap:12px;padding:0;display:flex}.previous-lesson small,.next-lesson small{letter-spacing:1.4px;color:#819773;margin-bottom:7px;font-size:7px;display:block}.previous-lesson span{font-size:10px;line-height:1.5}.next-lesson{background:#202b1d;border:1px solid #43523b;border-radius:6px;justify-content:space-between;padding:16px 19px;transition:background .2s}.next-lesson:hover{background:#2a3824}.next-lesson strong{letter-spacing:-.2px;font-size:13px;font-weight:500}.next-lesson>svg{color:#b0c698}.course-finish{font-family:var(--serif);color:#bdcfaa;align-items:center;gap:16px;font-size:18px;font-style:italic;display:flex}.page-footnote{border-top:1px solid #2a3527;justify-content:space-between;align-items:center;gap:20px;padding-top:17px;display:flex}.page-footnote .brand{opacity:.55;gap:5px}.page-footnote .brand img{width:19px;height:19px}.page-footnote .brand>span{letter-spacing:-.8px;font-size:17px}.page-footnote>span{color:#657e5e;font-size:8px}.page-footnote>button{color:#8da27e;align-items:center;gap:9px;font-size:8px;display:flex}.page-footnote kbd{text-align:center;border:1px solid #3d4d34;border-radius:3px;min-width:18px;font-size:8px}.audio-scene{background:radial-gradient(at 13% 80%,#3d483055,#0000 60%),linear-gradient(115deg,#222d20,#111a14 65%);align-items:center;gap:10%;padding:5% 7%;display:flex;position:absolute;inset:0}.audio-scene:after{content:"";pointer-events:none;border:1px solid #96b17b13;border-radius:2px;position:absolute;inset:20px}.record-art{aspect-ratio:1/1.18;flex-shrink:0;width:32%;margin-left:1%;position:relative}.album-cover{z-index:1;color:#263120;background:#d7ddbd;border-radius:2px;flex-direction:column;padding:9%;display:flex;position:absolute;inset:0;overflow:hidden;transform:rotate(-5deg);box-shadow:14px 13px 30px #0005}.album-cover>span{letter-spacing:1.1px;opacity:.8;font-size:6px}.album-cover>svg{opacity:.5;position:absolute;top:18%;right:10%}.album-cover>strong{font-size:68px;font-family:var(--serif);letter-spacing:-4px;margin-top:13%;font-weight:400;line-height:1}.album-cover>p{white-space:pre-line;font-family:var(--serif);letter-spacing:-.8px;max-width:95%;margin-top:10px;font-size:28px;line-height:1.1}.album-cover>small{letter-spacing:.8px;margin-top:auto;padding-top:10px;font-size:5px;line-height:1.6}.vinyl{aspect-ratio:1;background:repeating-radial-gradient(circle,#121813 0 3px,#2e3a2a 4px,#121813 5px);border-radius:50%;height:88%;position:absolute;top:6%;left:24%;box-shadow:10px 6px 20px #0005}.vinyl:after{content:"";background:#758863;border:8px solid #536844;border-radius:50%;position:absolute;inset:41%}.audio-intro{z-index:2;max-width:50%;padding-bottom:24px;position:relative}.audio-intro .eyebrow{color:#a1b78e;letter-spacing:1.4px;font-size:8px}.audio-intro h2{letter-spacing:-1px;margin-top:16px;font-size:36px;font-weight:400;line-height:1.15}.audio-intro h2 em{color:#c1d3a6;font-size:1.04em}.audio-intro>p{color:#91a684;max-width:300px;margin-top:16px;font-size:10px;line-height:1.9}.audio-availability{color:#9bb188;margin-top:10px;font-size:8px;display:block}.waveform{color:#80986a;align-items:center;gap:3px;height:44px;margin-top:17px;display:flex}.waveform i{opacity:.5;background:currentColor;border-radius:3px;width:3px;display:block}.is-playing .waveform i{animation:1.2s ease-in-out infinite wave}.is-playing .vinyl{animation:18s linear infinite record}.pending-video{background:radial-gradient(at 70% 60%,#2b3c27,#0000 65%),#19251c;flex-direction:column;justify-content:center;align-items:flex-start;padding:6%;display:flex;position:absolute;inset:0}.pending-video h2{letter-spacing:-1.2px;z-index:1;margin-top:20px;font-size:43px;font-weight:400;line-height:1.1;position:relative}.pending-video h2 em{color:#c5d7ae;font-size:1.15em}.pending-video>p{color:#9aaf8e;z-index:1;margin-top:17px;font-size:11px;line-height:1.8;position:relative}.pending-video>.light-button{z-index:1;margin-top:23px;position:relative}.pending-video>.eyebrow{color:#a1b88b;z-index:1;font-size:8px;position:relative}.pending-illustration{opacity:.55;place-items:center;width:55%;height:100%;display:grid;position:absolute;top:0;right:0;overflow:hidden}.pending-illustration>span{aspect-ratio:1;border:1px solid #a7be8130;border-radius:50%;width:75%;position:absolute;transform:rotate(-30deg)scaleX(1.3)}.pending-illustration>span:nth-child(2){width:55%}.pending-illustration>span:nth-child(3){width:35%}.pending-illustration>svg{color:#c4d99f;transform:rotate(-20deg)}.media-error{z-index:5;background:#152119ee;flex-direction:column;justify-content:center;align-items:center;gap:15px;font-size:14px;display:flex;position:absolute;inset:0}.media-error>button{color:var(--accent);border:1px solid #7f9869;border-radius:4px;padding:10px 16px;font-size:12px}.study-toolbar{justify-content:space-between;align-items:center;gap:20px;display:flex}.study-toolbar h2{margin-top:8px;font-size:23px}.study-toolbar .eyebrow{color:#90a282;font-size:8px}.transcript-switch{background:#101710;border:1px solid #35442f;border-radius:5px;gap:3px;width:max-content;max-width:100%;margin-top:23px;padding:3px;display:flex}.transcript-switch>button{color:#93a687;border-radius:3px;padding:8px 12px;font-size:9px}.transcript-switch>button.active{color:#d9e9c5;background:#2c3b26}.content-note{color:#839779;margin:18px 0 23px;font-size:10px;line-height:1.7}.transcript-line{text-align:left;border:1px solid #0000;border-bottom-color:#2b3828;border-radius:5px;grid-template-columns:46px 1fr;gap:18px;width:100%;padding:15px 15px 15px 10px;display:grid}.transcript-line:hover{background:#202c1e}.transcript-line.active{background:#253520;border:1px solid #465c38}.transcript-line>span{color:#a1bb8b;font-variant-numeric:tabular-nums;font-size:9px;line-height:2.2}.transcript-line>p{color:#bdcbb4;font-size:12px;line-height:1.95}.script-section{border-bottom:1px solid #33432d;padding:25px 0;scroll-margin-top:24px}.script-section>span{letter-spacing:1.6px;color:#839b74;font-size:8px}.script-section h3{letter-spacing:-.4px;color:#dae6cf;margin-top:10px;font-size:20px;font-weight:450}.script-section p{color:#b0c1a4;margin-top:15px;font-size:12px;line-height:2}.script-section .text-link{margin-top:15px}.source-meta{color:#98ae89;border-top:1px solid #34452b;border-bottom:1px solid #34452b;align-items:center;gap:8px;margin-top:18px;padding:12px 0;font-size:9px;display:flex}.source-meta i{background:#738a66;border-radius:50%;width:2px;height:2px;margin:0 4px}.source-meta>button{color:#c5d9b1;align-items:center;gap:5px;margin-left:auto;font-size:9px;display:flex}.book-toc{background:#1d2b1b;border-radius:5px;max-height:300px;margin-top:10px;padding:15px;display:grid;overflow-y:auto}.book-toc button{text-align:left;color:#b9cfa8;border-bottom:1px solid #35472b;justify-content:space-between;align-items:center;padding:7px;font-size:11px;line-height:1.7;display:flex}.book-paper{max-width:760px;padding:9px 0 0}.book-section{scroll-margin-top:24px}.book-section p{color:#b6c5ac;margin:18px 0;font-size:13px;line-height:2.05}.book-section h2{letter-spacing:-.5px;color:#d8e4cc;margin:36px 0 16px;font-size:23px;font-weight:450;line-height:1.35}.book-section h3{color:#cbdcc0;margin:26px 0 12px;font-size:17px;font-weight:450}.book-section li{color:#adbf9e;margin-bottom:8px;padding-left:4px;font-size:12px;line-height:1.95}.book-section ul,.book-section ol{padding-left:22px}.book-section strong{color:#d0e0c0;font-weight:600}.source-figure{background:#e8e9db;border:1px solid #bac7a8;border-radius:5px;margin:28px 0;display:block;overflow:hidden}.source-figure img{object-fit:contain;width:auto;max-width:100%;max-height:420px;margin:0 auto;display:block}.figure-caption{color:#c0d4af;background:#243221;padding:16px 19px;font-size:11px;line-height:1.8;display:block}.figure-caption>span{letter-spacing:1.5px;color:#96b280;margin-bottom:6px;font-size:8px;display:block}.figure-caption a{color:#9ebc87;align-items:center;gap:5px;width:max-content;margin-top:8px;font-size:9px;display:flex}.book-download{margin-top:30px}.ask-heading{align-items:flex-start;gap:17px;display:flex}.ai-spark{color:#d2e4b9;background:#283a22;border:1px solid #4d623d;border-radius:12px;flex-shrink:0;place-items:center;width:45px;height:45px;margin-top:25px;display:grid}.ask-heading .eyebrow{color:#8da57d;font-size:8px}.ask-heading h2{letter-spacing:-.5px;margin-top:10px;font-size:30px;font-weight:400;line-height:1.2}.ask-heading h2 em{color:#c9ddaf;font-size:1.1em}.ask-description{color:#9eb68e;max-width:640px;margin-top:18px;font-size:12px;line-height:1.9}.ai-status{color:#91aa80;align-items:center;gap:7px;margin-top:12px;font-size:9px;display:flex}.suggestions{flex-wrap:wrap;gap:8px;margin-top:25px;margin-bottom:23px;display:flex}.suggestions button{color:#b6cda4;border:1px solid #3a4e2e;border-radius:5px;align-items:center;gap:8px;padding:10px 13px;font-size:10px;line-height:1.5;display:flex}.suggestions button:hover{background:#263d20;border-color:#87a368}.ask-form{background:#1a2918;border:1px solid #536b40;border-radius:7px;align-items:center;gap:12px;margin-top:22px;padding:8px 8px 8px 17px;display:flex;box-shadow:0 3px 14px #0001}.ask-form input{color:#e4efd8;background:0 0;border:0;outline:none;width:100%;min-width:0;font-size:12px;line-height:1.6}.ask-form input::placeholder{color:#7e976e}.ask-form button{color:#23361c;background:#d4e6b7;border-radius:4px;flex-shrink:0;place-items:center;width:34px;height:34px;display:grid}.ask-form button:disabled{opacity:.4}.ask-footnote{color:#789568;margin-top:10px;font-size:8px;line-height:1.7}.asked-question{border-left:2px solid #abc68a;margin:20px 0;padding-left:13px}.asked-question>span{color:#90aa7d;font-size:8px}.asked-question>p{color:#d1e0c2;margin-top:5px;font-size:13px;line-height:1.8}.ask-loading{color:#a6be92;align-items:center;gap:9px;padding:20px 0;font-size:11px;display:flex}.ask-result{border-top:1px solid #3b502e;padding-top:22px}.ask-result>p{color:#bfd3ae;margin-top:15px;font-size:12px;line-height:1.9}.citation{background:#1a2917;border:1px solid #3c502f;border-radius:5px;align-items:flex-start;gap:13px;margin-top:15px;padding:18px 15px;display:flex}.citation-number{color:#cbe0b4;background:#32462a;border-radius:4px;flex-shrink:0;place-items:center;width:20px;height:20px;font-size:9px;display:grid}.citation h3{color:#d4e6c1;font-size:12px;font-weight:500}.citation p{color:#9eb98a;white-space:pre-line;max-height:180px;margin-top:10px;font-size:11px;line-height:1.95;overflow-y:auto}.citation .text-link{margin-top:14px;font-size:10px}.question-overlay{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:50;background:#060d09bc;place-items:center;padding:24px;display:grid;position:fixed;inset:0}.question-card{background:#1a251b;border:1px solid #4c5f3f;border-radius:12px;width:100%;max-width:580px;padding:30px;box-shadow:0 20px 100px #0008}.question-eyebrow{justify-content:space-between;align-items:center;gap:20px;display:flex}.question-eyebrow .eyebrow{color:#b8cfa0;font-size:9px}.question-eyebrow>button{color:#9caf90;display:flex}.question-card h2{letter-spacing:-.5px;margin-top:20px;font-size:26px;font-weight:450;line-height:1.35}.question-card>p{color:#9fb58f;margin-top:12px;font-size:12px}.question-options{gap:9px;margin-top:23px;display:grid}.question-options>button{text-align:left;color:#c5d6b7;border:1px solid #45553a;border-radius:6px;align-items:center;gap:12px;padding:15px;font-size:12px;line-height:1.6;display:flex}.question-options>button>span{color:#a8c38c;border:1px solid #485d39;border-radius:3px;padding:1px 6px;font-size:10px}.question-options>button>svg{margin-left:auto}.question-options>button:not(:disabled):hover{background:#2a3b23;border-color:#b6cd99}.question-options>button.correct{background:#2e4125;border-color:#b8d795}.question-options>button.incorrect{border-color:#ac8b6a}.question-feedback{border-top:1px solid #3b5030;margin-top:20px;padding-top:18px}.question-feedback>strong{color:#cde4b5;font-size:14px}.question-feedback>p{color:#afc69b;margin:10px 0 20px;font-size:12px;line-height:1.9}.app-dialog{color:#e2edda;background:#1a251b;border:1px solid #4b5d3e;border-radius:10px;width:min(460px,100% - 32px);padding:28px;box-shadow:0 20px 120px #0008}.app-dialog::backdrop{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#08110acd}.dialog-top{color:#c7dda9;justify-content:space-between;align-items:center;display:flex}.app-dialog h2{letter-spacing:-.5px;margin-top:14px;font-size:25px;font-weight:450}.app-dialog>p{color:#a3ba93;margin-top:12px;font-size:12px;line-height:1.9}.app-dialog dl{margin:24px 0 0}.app-dialog dl>div{border-top:1px solid #35492b;justify-content:space-between;align-items:center;gap:20px;padding:13px 0;display:flex}.app-dialog dt{color:#c1d4b0;font-size:11px}.app-dialog dd{margin:0}.app-dialog kbd{color:#bed5a8;border:1px solid #516642;border-radius:4px;padding:2px 7px;font-size:10px;display:inline-block}.app-dialog ol{color:#b0c99f;padding-left:18px;font-size:12px;line-height:1.9}.app-dialog li{margin-top:15px;padding-left:4px}.app-dialog strong{color:#d0e3bb;font-weight:500}.dialog-note{border-top:1px solid #354b2a;padding-top:16px;font-size:10px!important}.offline-banner{color:#b5cc9e;background:#293725;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-size:11px;display:flex}.load-error{text-align:center;color:#bfd1b1;padding:100px 40px}.load-error>svg{margin-bottom:20px}.load-error h2{font-weight:450}.load-error p{margin:15px 0 24px;font-size:12px}.inline-error{color:#e4b998;font-size:11px;line-height:1.8}.inline-error button{color:var(--accent);text-decoration:underline}.skeleton-page{gap:25px;padding:45px 40px;display:grid}.skeleton-page>div{background:#273424;border-radius:5px;width:250px;height:18px;animation:1.4s infinite pulse}.skeleton-page>div:nth-child(2){width:100%;max-width:980px;height:400px}.skeleton-page>div:last-child{width:100%;height:70px}.mobile-audio-dock{display:none}@keyframes wave{0%,to{opacity:.4;transform:scaleY(.5)}50%{opacity:.9;transform:scaleY(1)}}@keyframes record{to{transform:rotate(360deg)}}@keyframes pulse{50%{opacity:.4}}@keyframes spin{to{transform:rotate(360deg)}}.spin{animation:1s linear infinite spin}@media (min-width:1600px){:root{--sidebar-width:290px}.lesson-page{padding-top:44px}.lesson-heading h1{font-size:35px}.lesson-heading{padding-bottom:32px}.lesson-label strong{font-size:12px}.lesson-label small{font-size:9px}.lesson-link{padding-top:12px;padding-bottom:12px}.lesson-group h2{font-size:10px}.sidebar-top{padding-left:30px}.topbar{padding:0 50px}.summary-lead{font-size:13px}.takeaway-grid p,.learning-goals li{font-size:12px}}@media (max-width:1150px){:root{--sidebar-width:235px}.sidebar-top{padding-left:20px}.sidebar-top .brand>span{font-size:24px}.course-overview{padding-left:20px;padding-right:20px}.lesson-link{gap:9px;padding-left:9px;padding-right:9px}.lesson-label strong{font-size:10px}.lesson-label small{font-size:8px}.lesson-page{padding:29px 27px 20px}.topbar{padding:0 27px}.lesson-heading{gap:14px}.lesson-heading h1{font-size:26px}.mode-switch button{gap:5px;padding:9px 10px;font-size:9px}.mode-area>span{font-size:7px}.lesson-heading>div>p{max-width:400px;font-size:10px}.poster-treatment h2{font-size:65px}.poster-kicker{margin-bottom:17px}.poster-treatment>p{margin-top:15px;font-size:10px}.big-play{margin-top:20px;padding:10px 13px}.poster-note{font-size:7px}.audio-intro h2{font-size:29px}.album-cover>strong{font-size:57px}.album-cover>p{font-size:23px}.audio-scene{gap:8%}.record-art{width:33%}.audio-intro>p{font-size:9px}.audio-intro .eyebrow{font-size:7px}.waveform{margin-top:10px}.control-chapter{display:none}.study-tabs{gap:22px}.study-tabs>button{font-size:9px}.chapter-marker{min-width:127px;padding:10px}.chapter-marker strong{font-size:9px}.summary-intro h2{font-size:26px}}@media (max-width:850px){:root{--sidebar-width:270px}.sidebar{z-index:40;transition:transform .25s;transform:translate(-100%)}.menu-open .sidebar{transform:translate(0)}.sidebar-backdrop{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:35;background:#020b07b0;display:block;position:fixed;inset:0}.mobile-close{display:flex;position:absolute;top:27px;right:15px}.main-panel{margin-left:0}.mobile-brand{align-items:center;gap:13px;display:flex}.mobile-brand .brand img{width:25px;height:25px}.mobile-brand .brand>span{font-size:24px}.breadcrumb{display:none}.topbar{height:65px;padding:0 25px}.topbar-right{gap:13px}.save-status{display:none}.manual-toplink{border-left:none;padding-left:8px}.lesson-page{max-width:800px;padding:27px 26px 25px}.lesson-heading{padding-bottom:24px}.lesson-heading h1{font-size:28px}.lesson-label strong{font-size:11px}.lesson-label small{font-size:9px}.lesson-link{padding:11px 12px}.sidebar-top{padding-left:25px}.poster-treatment h2{font-size:76px}.audio-intro h2{font-size:32px}.album-cover>strong{font-size:65px}.album-cover>p{font-size:26px}.audio-intro>p{font-size:10px}.audio-intro .eyebrow{font-size:8px}.study-tabs>button{font-size:10px}.chapter-marker{min-width:136px}.chapter-marker strong{font-size:10px}.page-footnote>span{font-size:8px}}@media (max-width:600px){.topbar{height:60px;padding:0 15px}.mobile-brand{gap:8px}.mobile-brand .icon-button{padding:7px 3px}.mobile-brand .brand{gap:5px}.mobile-brand .brand img{width:22px;height:22px}.mobile-brand .brand>span{letter-spacing:-1.2px;font-size:22px}.manual-toplink{gap:5px;padding-left:0;font-size:9px}.shortcut-trigger{display:none}.topbar-right{gap:10px}.lesson-page{padding:24px 16px 25px}.lesson-heading{padding-bottom:21px;display:block}.lesson-heading .eyebrow{letter-spacing:1.3px;font-size:7px}.tiny-line{width:12px}.lesson-heading h1{letter-spacing:-.9px;max-width:95%;margin-top:12px;font-size:29px;line-height:1.2}.lesson-heading>div>p{max-width:100%;margin-top:9px;font-size:11px;line-height:1.8}.mode-area{text-align:left;justify-content:space-between;align-items:center;gap:10px;margin-top:19px;display:flex}.mode-switch{padding:3px}.mode-switch button{gap:6px;min-height:34px;padding:9px 10px;font-size:9px}.mode-switch button svg{width:14px}.mode-area>span{max-width:105px;margin-top:0;font-size:8px;line-height:1.7}.player-frame{aspect-ratio:16/10;border-radius:6px}.player-frame video{object-fit:contain;background:#101a12}.poster-treatment{justify-content:center;padding:20px 6% 32px}.poster-kicker{letter-spacing:1.2px;margin-bottom:11px;font-size:6px}.poster-treatment h2{letter-spacing:-2px;font-size:46px;line-height:.93}.poster-treatment h2 em{letter-spacing:-1.3px}.poster-treatment>p{max-width:160px;margin-top:11px;font-size:8px;line-height:1.5}.big-play{gap:7px;margin-top:14px;padding:8px 10px;font-size:8px}.big-play>svg{width:13px;height:13px}.big-play small{margin-left:0;padding-left:8px;font-size:7px}.poster-note{display:none}.player-controls{padding:22px 11px 7px}.controls-row{gap:12px;height:23px;margin-top:7px}.controls-row button{min-width:17px;min-height:22px}.controls-row svg{width:15px;height:15px}.skip-control{display:none!important}.time-display,.speed-control select{font-size:8px}.scrubber{height:3px}.media-caption{align-items:flex-start;gap:7px;font-size:7px;line-height:1.7}.media-caption>span:first-child{white-space:nowrap}.media-caption>span:nth-child(2){text-align:right}.media-caption>a{font-size:7px}.section-heading{margin-top:21px;margin-bottom:10px;font-size:10px}.section-heading>span:last-child{font-size:8px}.chapter-markers{gap:7px;padding-bottom:7px}.chapter-marker{flex:0 0 34%;min-width:125px;padding:10px 11px}.marker-top{font-size:7px}.chapter-marker strong{min-height:29px;margin-top:5px;font-size:9px;line-height:1.55}.marker-line{margin-top:10px}.lesson-action-row{align-items:flex-start;gap:12px;margin:8px 0 20px}.lesson-action-row>span{align-items:flex-start;max-width:130px;margin-top:6px;font-size:7px;line-height:1.8}.little-orbit{flex-shrink:0;margin-top:3px}.complete-button{white-space:nowrap;padding-top:6px;font-size:8px;line-height:1.5}.complete-button svg{width:13px}.study-tabs{scrollbar-width:none;gap:23px;scroll-margin-top:12px}.study-tabs>button{gap:6px;padding:13px 0;font-size:9px}.study-tabs>button svg{width:13px}.tab-new{font-size:6px}.study-content{padding-top:26px}.summary-intro{align-items:flex-start;gap:10px}.summary-intro .eyebrow{letter-spacing:1.4px;font-size:7px}.summary-intro h2{letter-spacing:-.5px;margin-top:12px;font-size:25px;line-height:1.2}.summary-stamp{gap:6px;margin-top:20px;margin-right:3px;padding:7px 8px;font-size:6px}.summary-stamp svg{width:16px}.summary-lead{margin-top:20px;font-size:12px;line-height:1.95}.takeaway-grid{grid-template-columns:1fr;gap:0;margin-top:23px}.takeaway-grid article{border-top:1px solid #3c4c31;grid-template-columns:26px 1fr;align-items:start;gap:12px;padding:15px 3px;display:grid}.takeaway-number{margin-top:4px;font-size:9px}.takeaway-grid p{margin-top:0;font-size:12px;line-height:1.9}.learning-goals{margin-top:7px;padding-top:21px}.learning-goals h3{font-size:13px}.learning-goals li{gap:9px;font-size:11px;line-height:1.8}.book-invitation{gap:12px;margin-top:24px;padding:16px 14px}.book-invitation strong{font-size:10px;line-height:1.6}.book-invitation small{margin-top:4px;font-size:8px;line-height:1.7}.book-invitation-icon svg{width:20px}.book-invitation>svg{width:16px}.lesson-footer{grid-template-columns:1fr;gap:20px;margin-top:29px;padding:23px 0}.lesson-footer>div:empty{display:none}.next-lesson{padding:16px 18px}.next-lesson strong{font-size:14px}.next-lesson small{font-size:7px}.previous-lesson span{font-size:10px}.page-footnote{flex-wrap:wrap;gap:12px;padding-top:17px;position:relative}.page-footnote .brand>span{font-size:16px}.page-footnote>span{order:3;width:100%;font-size:7px}.page-footnote>button{font-size:8px}.audio-scene{align-items:center;gap:8%;padding:6% 5% 11%}.record-art{width:32%;margin-left:0}.album-cover{padding:10%}.album-cover>span{letter-spacing:.6px;font-size:3px}.album-cover>strong{letter-spacing:-1px;margin-top:12%;font-size:38px}.album-cover>p{letter-spacing:-.3px;margin-top:4px;font-size:16px}.album-cover>small{letter-spacing:.3px;padding-top:5px;font-size:3px}.album-cover>svg{width:20px;height:20px;top:20%}.audio-intro{max-width:53%;padding-bottom:0}.audio-intro .eyebrow{letter-spacing:.7px;gap:5px;font-size:5px}.audio-intro .eyebrow svg{width:10px;height:10px}.audio-intro h2{letter-spacing:-.4px;margin-top:10px;font-size:21px}.audio-intro>p{max-width:180px;margin-top:9px;font-size:7px;line-height:1.8}.waveform{gap:2px;max-width:150px;height:24px;margin-top:5px;overflow:hidden}.waveform i{flex-shrink:0;width:2px;max-height:24px}.audio-availability{margin-top:5px;font-size:6px}.audio-scene:after{inset:10px}.audio-scene .vinyl{top:9%}.app-shell:has(.mobile-audio-dock){padding-bottom:85px}.mobile-audio-dock{z-index:25;padding:12px 20px calc(12px + env(safe-area-inset-bottom));-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);background:#1d2b1cf5;border-top:1px solid #536b3f;align-items:center;gap:13px;display:flex;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -10px 30px #0002}.mobile-audio-dock>svg{color:#bfd5a5}.mobile-audio-dock>div{flex:1;min-width:0}.mobile-audio-dock strong{color:#d7e8c3;font-size:11px;font-weight:500;display:block}.mobile-audio-dock span{color:#91ae7c;margin-top:4px;font-size:8px;display:block}.mobile-audio-dock>button{background:var(--accent);color:#21331a;border-radius:50%;place-items:center;width:36px;height:36px;display:grid}.mobile-audio-dock .pause-symbol{color:#21331a;margin:0;font-size:18px;line-height:1}.pending-video{padding:6%}.pending-video h2{letter-spacing:-.6px;margin-top:13px;font-size:27px}.pending-video>p{margin-top:12px;font-size:8px}.pending-video .eyebrow{font-size:6px}.pending-video .light-button{gap:7px;margin-top:14px;padding:9px 12px;font-size:8px}.pending-video .light-button svg{width:13px}.pending-illustration>svg{width:40px}.study-toolbar{align-items:flex-start}.study-toolbar h2{font-size:23px;line-height:1.3}.study-toolbar .eyebrow{font-size:7px}.study-toolbar>.text-link{white-space:nowrap;margin-top:23px;font-size:9px}.transcript-switch>button{padding:8px 9px;font-size:8px}.content-note{font-size:9px;line-height:1.9}.transcript-line{grid-template-columns:33px 1fr;gap:10px;padding:13px 8px 13px 3px}.transcript-line>p{font-size:12px;line-height:1.95}.transcript-line>span{font-size:8px}.script-section h3{font-size:21px}.script-section p{font-size:12px;line-height:2.1}.source-meta{flex-wrap:wrap;gap:7px;font-size:8px}.source-meta>svg{width:12px}.source-meta>button{font-size:8px}.book-section h2{margin-top:30px;font-size:23px;line-height:1.45}.book-section p{font-size:13px;line-height:2.05}.book-section li{font-size:12px;line-height:2}.figure-caption{padding:13px;font-size:10px}.source-figure img{max-height:320px}.ask-heading{gap:12px}.ai-spark{border-radius:9px;width:34px;height:34px;margin-top:22px}.ai-spark svg{width:18px}.ask-heading .eyebrow{letter-spacing:1px;font-size:6px}.ask-heading h2{font-size:27px}.ask-description{margin-top:17px;font-size:12px;line-height:1.95}.ai-status{font-size:8px;line-height:1.8}.suggestions{gap:8px;margin-top:23px;display:grid}.suggestions button{text-align:left;padding:12px;font-size:10px}.suggestions button>svg:last-child{margin-left:auto}.ask-form{gap:7px;padding-left:12px}.ask-form input{font-size:11px}.ask-footnote{font-size:8px;line-height:1.9}.citation{gap:10px;padding:15px 12px}.citation p{max-height:220px;font-size:11px;line-height:2}.question-card{max-height:90dvh;padding:22px;overflow-y:auto}.question-card h2{font-size:23px}.question-options>button{padding:13px 12px;font-size:11px}.question-card>p{font-size:11px}.question-feedback>p{font-size:11px;line-height:2}.question-eyebrow .eyebrow{font-size:7px}.skeleton-page{padding:30px 16px}.skeleton-page>div:nth-child(2){height:240px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}@media (min-width:851px){.summary-lead{font-size:14px}.takeaway-grid p,.learning-goals li{font-size:13px}.book-section p{font-size:15px}.book-section li,.transcript-line>p,.script-section p,.ask-description,.ask-result>p{font-size:14px}.citation p{font-size:13px}.lesson-heading>div>p{font-size:12px}}@media (max-width:600px){.poster-treatment{padding:15px 6% 52px}.poster-treatment>p{display:none}.poster-treatment h2{font-size:44px}.poster-kicker{margin-bottom:9px}.big-play{margin-top:13px;padding:9px 11px;font-size:9px}.audio-intro h2{font-size:18px;line-height:1.1}.audio-intro h2 em{font-size:1em}.audio-intro>p{margin-top:7px}.waveform{height:20px;margin-top:4px}.waveform i{max-height:20px}.audio-availability{margin-top:3px}.summary-stamp{display:none}}.study-progress-strip{color:var(--muted);border-bottom:1px solid var(--line);flex-wrap:wrap;gap:10px 24px;padding:16px 0;font-size:12px;display:flex}.study-progress-strip strong{color:var(--accent);font-weight:600}.study-tabs{white-space:nowrap;scrollbar-width:thin;overflow-x:auto}.study-tabs button{flex-shrink:0}.study-meter{background:var(--line);border-radius:8px;height:4px;margin:24px 0;overflow:hidden}.study-meter i{background:var(--accent);height:100%;transition:width .25s;display:block}.quiz-count{color:var(--accent);font-variant-numeric:tabular-nums;font-size:20px}.quiz-steps{gap:8px;margin:24px 0;display:flex}.quiz-steps button{border:1px solid var(--line);width:36px;height:36px;color:var(--muted);cursor:pointer;background:0 0;border-radius:50%}.quiz-steps .active{border-color:var(--accent);color:var(--accent)}.quiz-steps .answered{color:#e0edcf;background:#354432}.quiz-question{border:0;min-width:0;margin:24px 0;padding:0}.quiz-question legend{font-family:var(--serif);margin-bottom:24px;font-size:27px;line-height:1.25}.quiz-option{border:1px solid var(--line);cursor:pointer;border-radius:10px;align-items:center;gap:14px;margin-bottom:10px;padding:18px;font-size:14px;line-height:1.5;display:flex}.quiz-option:has(input:checked){border-color:var(--accent);background:#293325}.quiz-option.correct{border-color:#a1c587}.quiz-option.incorrect{background:#362d27;border-color:#c6957d}.quiz-option input{accent-color:var(--accent);flex-shrink:0;width:17px;height:17px}.option-letter{color:var(--muted);font-size:12px}.learning-primary{background:var(--accent);color:#1d281d;cursor:pointer;border:0;border-radius:7px;justify-content:center;align-items:center;gap:9px;padding:13px 19px;font-size:13px;font-weight:600;display:inline-flex}.learning-primary:disabled{opacity:.4;cursor:default}.quiz-feedback{background:#232d23;border:1px solid #3c4b37;border-radius:10px;padding:24px;font-size:14px;line-height:1.7}.quiz-feedback h3{margin:0}.quiz-feedback blockquote{color:var(--muted);border-left:2px solid #69815d;margin:20px 0;padding-left:18px;font-size:13px}.quiz-feedback .learning-primary{margin-top:24px;display:flex}.quiz-result{text-align:center;color:var(--accent);flex-direction:column;align-items:center;gap:12px;padding:30px 12px;display:flex}.quiz-result h3{font-family:var(--serif);margin:0;font-size:30px;font-weight:500}.quiz-result p{color:var(--muted);margin:0;font-size:14px}.quiz-review{border-top:1px solid var(--line);padding:24px 0;font-size:14px;line-height:1.65}.quiz-review h3{font-size:16px;line-height:1.5}.quiz-review p{color:#b9c5b9}.attempt-history{border-top:1px solid var(--line);color:var(--muted);margin-top:32px;padding-top:20px;font-size:13px}.attempt-history summary{cursor:pointer}.attempt-history ol{padding:0;list-style:none}.attempt-history li{border-bottom:1px solid var(--line);justify-content:space-between;padding:12px 0;display:flex}.section-tools{border-top:1px solid #d8d7ca;flex-wrap:wrap;gap:16px;margin-top:24px;padding:18px 0 28px;font-family:DM Sans Variable,sans-serif;display:flex}.book-paper .section-tools button{color:#3c5a40;font-size:12px}.book-paper .section-tools button[aria-pressed=true]{color:#22472c;font-weight:600}.section-reviewed{margin-left:24px}.resume-script{margin:10px 0 24px}.notebook-bookmarks{border-bottom:1px solid var(--line);margin-bottom:28px;padding:16px 0 28px}.notebook-bookmarks h3{font-size:15px}.notebook-bookmarks>p{color:var(--muted);font-size:14px;line-height:1.7}.saved-bookmark{border-bottom:1px solid var(--line);align-items:center;gap:8px;padding:12px 0;display:flex}.saved-bookmark>button:first-child{color:var(--accent);text-align:left;cursor:pointer;background:0 0;border:0;flex:1;justify-content:space-between;align-items:center;gap:12px;font-size:13px;display:flex}.note-label{margin-bottom:12px;font-size:14px;font-weight:600;display:block}.notebook-panel textarea{resize:vertical;color:#edf1e7;background:#151d17;border:1px solid #3d493d;border-radius:8px;width:100%;min-height:140px;max-height:500px;padding:16px;font-size:14px;line-height:1.7}.notebook-panel textarea:focus{outline:1px solid var(--accent)}.note-actions{align-items:center;gap:16px;margin:16px 0 32px;display:flex}.saved-notes article{border:1px solid var(--line);background:#202820;border-radius:10px;margin:14px 0;padding:20px}.saved-notes article>p{white-space:pre-wrap;overflow-wrap:anywhere;margin:0 0 16px;font-size:14px;line-height:1.8}.note-meta{color:var(--muted);flex-wrap:wrap;align-items:center;gap:10px;font-size:11px;display:flex}.note-meta time{margin-right:auto}.delete-note{flex-wrap:wrap;align-items:center;gap:12px;margin-top:16px;font-size:13px;display:flex}.delete-note button{border:1px solid var(--line);color:var(--accent);cursor:pointer;background:0 0;border-radius:5px;padding:6px 10px}.book-section,.script-section{scroll-margin-top:90px}@media (max-width:600px){.study-progress-strip{gap:8px 14px;font-size:11px}.quiz-question legend{font-size:23px}.quiz-option{gap:10px;padding:14px}.quiz-feedback{padding:18px}.section-reviewed{margin:16px 0 0;display:flex}.note-actions{flex-wrap:wrap}}.course-signout{align-items:center;gap:8px;margin-bottom:15px;font-size:11px;display:flex}.account-trigger{color:var(--accent);border:1px solid var(--line);cursor:pointer;white-space:nowrap;border-radius:7px;align-items:center;gap:7px;padding:9px 12px;font-size:12px;display:flex}.account-trigger.sync-error{color:#efbb99}.account-dialog{max-height:90dvh;overflow-y:auto}.account-dialog .eyebrow{margin-top:18px}.account-dialog h2{line-height:1.15}.account-dialog .account-email{overflow-wrap:anywhere;color:var(--accent)}.account-form{flex-direction:column;gap:12px;margin:22px 0;display:flex}.account-form label{color:#c4d0be;font-size:13px}.account-form input{color:#eef3e8;background:#111b14;border:1px solid #52624b;border-radius:7px;width:100%;min-width:0;padding:13px}.account-form input:read-only{color:var(--muted)}.account-form button{margin-top:8px}.account-code-actions{flex-wrap:wrap;gap:20px;display:flex}.account-code-actions button:disabled{opacity:.5}.account-sync{border:1px solid var(--line);background:#202c20;border-radius:8px;margin:20px 0;padding:18px}.account-sync strong{color:var(--accent);font-size:14px}.account-dialog .account-sync p{margin-bottom:0;font-size:13px;line-height:1.6}.account-signout{margin-top:24px;display:flex}.account-dialog .inline-error{margin-top:18px}@media (max-width:600px){.account-trigger{padding:8px}.account-trigger span{display:none}.topbar-right{gap:10px}.account-dialog{width:calc(100% - 32px);padding:24px}}.language-switch button{appearance:none;color:inherit;cursor:pointer;font:inherit;background:0 0;border:1px solid;border-radius:6px;padding:6px 8px;font-size:12px}.sidebar-bottom .language-switch{margin-bottom:10px}.figure-caption .translated-figure-label{font:inherit;letter-spacing:normal;display:block}
