@import url('./fonts.css');
:root{--bg:#f7f6f2;--surface:#fffefa;--ink:#272a29;--muted:#7f8279;--line:#e7e7df;--red:#b83e37;--red-light:#f7eae5;--green:#657b62;--green-light:#edf0e8;--shadow:0 8px 30px #34332104;--serif:Georgia,'Times New Roman',serif;--sans:'Manrope',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color-scheme:light}
:root[data-theme=dark]{--bg:#1c211f;--surface:#252b28;--ink:#f1efe6;--muted:#a3ada3;--line:#39413a;--red:#e7917d;--red-light:#41302d;--green:#b3c6a5;--green-light:#333d31;color-scheme:dark}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:14px;line-height:1.6}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default;opacity:.45}:focus-visible{outline:3px solid var(--red);outline-offset:4px}button{color:inherit}button,input,select,textarea{border:1px solid var(--line);background:var(--surface);border-radius:8px}button{padding:10px 15px}a,button{touch-action:manipulation}.shell{display:flex;min-height:100vh}.sidebar{width:228px;background:var(--surface);border-right:1px solid var(--line);position:fixed;inset:0 auto 0 0;padding:36px 23px 22px;display:flex;flex-direction:column;z-index:5}.brand{display:flex;gap:13px;align-items:center;font-size:16px;line-height:1.25;letter-spacing:-.5px}.brand strong{font-weight:760;font-size:22px}.brand-icon{width:42px;height:46px;border-radius:12px;background:var(--red);color:#fff9ee;font-family:var(--serif);font-style:italic;font-size:38px;line-height:39px;text-align:center;position:relative}.brand-icon span{position:absolute;right:4px;top:-3px;font-size:18px;color:#f3c095}.sidebar-label{font-size:9px;font-weight:700;letter-spacing:1.6px;color:var(--muted);margin:52px 10px 15px}.sidebar nav{display:flex;flex-direction:column;gap:6px}.sidebar nav a{display:flex;align-items:center;gap:11px;font-size:12px;font-weight:550;padding:12px 13px;border-radius:7px}.sidebar nav a>span:first-child{font-size:19px;font-weight:400;line-height:1}.sidebar nav a.active{background:var(--red-light);color:var(--red)}.sidebar nav a:hover{background:var(--bg)}.nav-count,.nav-arrow{margin-left:auto!important;font-size:11px!important}.nav-count{background:var(--bg);border:1px solid var(--line);border-radius:5px;padding:0px 5px}.side-bottom{margin-top:auto;padding-top:45px}.side-note{border-top:1px solid var(--line);padding:20px 10px 23px}.little-star{font-size:28px;color:var(--green)}.side-note p{font-size:11px;color:var(--muted);line-height:1.8}.hub-link{display:block;font-size:11px;margin:0 8px 18px}.theme-button{border:0;background:transparent;font-size:18px;padding:3px 8px;color:var(--muted)}.theme-button span{font-size:10px;padding-left:8px}.workspace{width:calc(100% - 228px);margin-left:228px}.topbar{height:77px;display:flex;align-items:center;justify-content:space-between;padding:0 45px;border-bottom:1px solid var(--line)}.breadcrumb{font-size:9px;font-weight:650;letter-spacing:1.3px;color:var(--muted)}.breadcrumb span{padding:0 12px;color:#b8bbae}.course-badge{font-size:8px;font-weight:700;letter-spacing:1.15px;display:flex;gap:7px;align-items:center}.course-badge i{width:6px;height:6px;background:var(--red);border-radius:50%}main{max-width:1280px;margin:0 auto;padding:37px 45px 40px;min-height:calc(100vh - 140px)}.eyebrow{font-size:9px;color:var(--muted);letter-spacing:1.7px;font-weight:600;display:flex;align-items:center;gap:8px}.eyebrow:before{content:'';height:1px;width:18px;background:var(--red)}h1,h2,h3,p{margin:0}h1{font-size:44px;letter-spacing:-2px;font-weight:550;line-height:1.16;margin:13px 0 12px}h1 em{font-family:var(--serif);font-weight:400;color:var(--red);font-size:1.1em}h2{font-size:21px;font-weight:600;letter-spacing:-.7px}h3{font-size:15px;font-weight:650;line-height:1.45}.lead{color:var(--muted);max-width:500px;font-size:12px;line-height:1.9}.hero{display:grid;grid-template-columns:1fr 230px;gap:30px;align-items:center;margin-bottom:28px}.hero-art{height:175px;position:relative;display:grid;place-items:center}.hero-art svg{width:100%;height:100%;overflow:visible}.hero-art .art-caption{position:absolute;bottom:0;font-family:var(--serif);font-style:italic;font-size:15px;color:var(--green)}.button-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}.btn{border:1px solid var(--line);border-radius:7px;padding:11px 17px;display:inline-flex;align-items:center;justify-content:center;gap:20px;font-size:11px;font-weight:600;background:var(--surface)}.btn.primary{background:var(--red);color:#fff9f0;border-color:var(--red)}.btn:hover{filter:brightness(.96)}.btn.small{padding:7px 12px;font-size:10px}.source-notice{font-size:10px;color:var(--muted);border-left:2px solid #c7ba9c;padding:7px 12px;background:color-mix(in srgb,var(--surface) 60%,transparent);margin:0 0 24px}.source-notice a{text-decoration:underline;text-underline-offset:3px}.stats{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);background:var(--surface);border-radius:10px;padding:20px 0;box-shadow:var(--shadow)}.stat{padding:0 22px;border-right:1px solid var(--line)}.stat:last-child{border:0}.stat-label{font-size:9px;color:var(--muted)}.stat-value{font-size:28px;font-weight:550;line-height:1.6;letter-spacing:-1px}.stat-value span{font-size:11px;letter-spacing:0;color:var(--muted);font-weight:400;margin-left:5px}.stat-foot{font-size:9px;color:var(--muted)}.stat-foot.green{color:var(--green)}.progress-bar{height:4px;background:var(--line);border-radius:10px;overflow:hidden;margin-top:10px}.progress-bar span{display:block;height:100%;background:var(--green);border-radius:10px}.section-head{display:flex;align-items:center;justify-content:space-between;margin:31px 0 17px;gap:15px}.section-head p{font-size:10px;color:var(--muted);margin-top:4px}.text-link{font-size:10px;color:var(--muted);white-space:nowrap}.modules{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}.module-card{border:1px solid var(--line);border-radius:9px;background:var(--surface);padding:17px 15px 14px;transition:transform .2s,border-color .2s;display:flex;flex-direction:column;min-width:0;position:relative}.module-card:hover{transform:translateY(-3px);border-color:var(--muted)}.module-top{display:flex;justify-content:space-between;font-size:9px;align-items:center;color:var(--muted)}.module-number{font-family:var(--serif);font-size:12px}.module-symbol{font-family:var(--serif);font-style:italic;font-size:42px;line-height:1.3;margin:15px 0 12px;height:52px;color:var(--red)}.module-card:nth-child(2) .module-symbol{color:#9b7a48}.module-card:nth-child(3) .module-symbol{color:var(--green)}.module-card:nth-child(4) .module-symbol{color:#727f9a}.module-card h3{font-size:12px;letter-spacing:-.1px}.module-card p{font-size:9px;color:var(--muted);margin:5px 0 18px;line-height:1.8;min-height:32px}.module-bottom{font-size:9px;display:flex;justify-content:space-between;color:var(--muted);margin-top:auto}.dashboard-bottom{display:grid;grid-template-columns:1.4fr 1fr;gap:18px;margin-top:26px}.continue-card{border:1px solid var(--line);border-radius:9px;background:var(--surface);padding:22px;display:flex;gap:22px;align-items:center}.continue-symbol{border:1px solid var(--line);border-radius:9px;width:62px;height:69px;flex:none;display:grid;place-items:center;font-family:var(--serif);font-size:31px;color:var(--green);background:var(--green-light)}.continue-card .eyebrow{font-size:8px;letter-spacing:1px}.continue-card h3{margin:7px 0 3px;font-size:13px}.continue-card p{color:var(--muted);font-size:10px}.continue-card .text-link{color:var(--red);display:block;margin-top:13px;font-weight:600}.daily{background:var(--green-light);border-radius:9px;border:1px solid color-mix(in srgb,var(--green) 15%,transparent);padding:22px;position:relative;overflow:hidden}.daily .eyebrow{color:var(--green)}.daily .eyebrow:before{background:var(--green)}.daily blockquote{font-family:var(--serif);font-size:17px;line-height:1.5;font-style:italic;margin:12px 0 5px;max-width:280px}.daily p{font-size:9px;color:var(--green)}.daily-star{position:absolute;right:18px;top:16px;color:var(--green);font-size:30px;opacity:.5}footer{display:flex;justify-content:space-between;gap:15px;border-top:1px solid var(--line);margin:0 45px;padding:19px 0;font-size:9px;color:var(--muted)}footer a{text-decoration:underline;text-underline-offset:3px}.page-heading{margin-bottom:25px}.page-heading h1{font-size:35px}.filters{display:flex;gap:10px;margin:22px 0 14px;flex-wrap:wrap}.search{flex:1;min-width:200px;padding:12px 14px}.filters select{padding:10px;max-width:100%}.chips{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:22px}.chip{font-size:10px;border-radius:30px;padding:6px 12px;background:transparent}.chip.active{background:var(--ink);color:var(--surface);border-color:var(--ink)}.question-list{border:1px solid var(--line);border-radius:10px;background:var(--surface);overflow:hidden}.question-row{display:flex;align-items:center;gap:16px;border-bottom:1px solid var(--line);padding:17px 21px}.question-row:last-child{border-bottom:0}.question-row:hover{background:var(--bg)}.question-row .q-link{flex:1;min-width:0}.q-number{font-family:var(--serif);font-size:17px;color:var(--muted);min-width:23px}.question-row h3{font-size:12px}.q-meta{font-size:9px;color:var(--muted);margin-top:4px;display:flex;gap:12px;flex-wrap:wrap}.status-tag{font-size:8px;border-radius:4px;padding:3px 7px;background:var(--green-light);color:var(--green);white-space:nowrap}.icon-btn{border:0;background:transparent;font-size:20px;color:var(--muted);padding:8px}.icon-btn.saved{color:var(--red)}.empty{padding:50px;text-align:center;color:var(--muted)}.back{font-size:11px;color:var(--muted);display:inline-block;margin-bottom:20px}.reader{max-width:850px;margin:auto}.reader h1{font-size:34px;line-height:1.25}.reader-top{display:flex;gap:12px;align-items:center;justify-content:space-between}.reader-top .eyebrow{font-size:9px}.reader .q-meta{font-size:10px;margin:15px 0 24px}.answer{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:25px 28px;font-size:14px;line-height:1.95;margin:15px 0}.answer.short{border-left:3px solid var(--red);background:var(--red-light)}.answer h2{font-family:var(--sans);font-size:11px;letter-spacing:1px;text-transform:uppercase;color:var(--muted);margin:0 0 14px}.answer p+p{margin-top:14px}.answer .katex{font-size:1.13em}.answer .katex-display{overflow-x:auto;overflow-y:hidden;padding:7px 0}.trap{border-left:2px solid #ad824d;padding-left:17px;font-size:12px;line-height:1.9;margin:22px 0}.trap strong{display:block;font-size:10px;color:#ad824d;letter-spacing:1px;margin-bottom:5px}.checklist{list-style:none;padding:0;margin:12px 0 25px}.checklist li{padding:5px 0;font-size:12px}.checklist li:before{content:'✓';color:var(--green);margin-right:10px}.note-input{width:100%;resize:vertical;min-height:95px;padding:13px;font-size:12px}.rating{display:flex;gap:8px;flex-wrap:wrap;margin:17px 0}.rating button{font-size:11px;flex:1;min-width:100px}.rating button.active{background:var(--green-light);border-color:var(--green);color:var(--green)}.quiz-options{display:grid;gap:8px;margin:18px 0}.quiz-choice{text-align:left;padding:13px 16px;font-size:12px}.quiz-choice.correct{background:var(--green-light);border-color:var(--green)}.quiz-choice.wrong{background:var(--red-light);border-color:var(--red)}.quiz-result{padding:15px;border-radius:8px;background:var(--bg);font-size:12px}.quiz-result:empty{display:none}.reader-nav{display:flex;justify-content:space-between;gap:12px;margin-top:25px}.practice-setup{max-width:650px}.setup-panel{padding:25px;background:var(--surface);border:1px solid var(--line);border-radius:10px;margin-top:20px}.field{display:block;margin:0 0 20px;font-size:11px;color:var(--muted)}.field select{display:block;width:100%;padding:12px;margin-top:7px;color:var(--ink)}.session-head{display:flex;align-items:center;justify-content:space-between;padding:15px 20px;border:1px solid var(--line);border-radius:9px;margin-bottom:25px;font-size:11px;background:var(--surface)}.timer{font-size:20px;font-variant-numeric:tabular-nums;letter-spacing:1px;font-family:var(--serif)}.timer.expired{color:var(--red)}.flashcard{display:block;width:100%;min-height:300px;border:1px solid var(--line);border-radius:15px;background:var(--surface);padding:40px;text-align:center;box-shadow:var(--shadow);margin:25px 0}.flashcard h2{font-size:25px;line-height:1.5;margin:30px 0}.flashcard .hint{font-size:10px;color:var(--muted)}.flash-answer{font-size:16px;line-height:1.9;text-align:left}.flash-count{text-align:center;color:var(--muted);font-size:11px}.completion{padding:50px 20px;text-align:center}.completion h1{font-size:35px}.completion p{color:var(--muted);margin:15px}.completion .button-row{justify-content:center}.completion .score{font-size:70px;font-family:var(--serif);color:var(--green)}.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.about-grid .answer{margin:0}.about-grid p{font-size:12px}.toast{position:fixed;bottom:25px;left:50%;transform:translate(-50%,20px);background:var(--ink);color:var(--surface);padding:12px 20px;border-radius:9px;font-size:12px;opacity:0;transition:.2s;pointer-events:none;z-index:10;max-width:90vw}.toast.visible{opacity:1;transform:translate(-50%,0)}.skip{position:fixed;left:250px;top:-80px;background:var(--ink);color:var(--surface);padding:10px;z-index:20}.skip:focus{top:10px}.reader-actions{display:flex;gap:8px}.section-count{font-size:10px;color:var(--muted)}.no-js{padding:30px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(min-width:1500px){main{padding-top:50px}.hero{margin-bottom:35px}.module-card{padding:22px}.module-card h3{font-size:14px}.module-card p{font-size:11px}h1{font-size:52px}.lead{font-size:14px}.hero-art{height:200px}.stats{padding:25px 0}.dashboard-bottom{margin-top:30px}}
@media(max-width:1100px){.sidebar{width:200px;padding:30px 16px}.workspace{width:calc(100% - 200px);margin-left:200px}.topbar{padding:0 28px}main{padding:30px 28px}.hero{grid-template-columns:1fr 170px;gap:10px}h1{font-size:36px}.modules{grid-template-columns:repeat(2,1fr)}.module-card p{min-height:0}.module-symbol{margin:8px 0;font-size:35px}.dashboard-bottom{grid-template-columns:1fr 1fr}.continue-card{gap:15px;padding:18px}.continue-symbol{width:45px;height:55px}.breadcrumb{font-size:8px;letter-spacing:.8px}footer{margin:0 28px}.stat{padding:0 16px}}
@media(max-width:760px){.shell{display:block}.sidebar{position:sticky;top:0;width:100%;height:auto;padding:12px 18px 0;border:0;border-bottom:1px solid var(--line)}.brand{font-size:11px;gap:8px}.brand strong{font-size:15px}.brand br{display:none}.brand strong:before{content:' '}.brand-icon{width:28px;height:29px;font-size:25px;line-height:25px;border-radius:8px}.brand-icon span{font-size:12px;right:2px}.sidebar-label,.side-note,.hub-link,.theme-button span{display:none}.sidebar nav{flex-direction:row;gap:0;justify-content:space-between;margin-top:10px}.sidebar nav a{font-size:10px;padding:10px 7px;gap:6px;border-radius:6px 6px 0 0;white-space:nowrap}.sidebar nav a>span:first-child{font-size:15px}.nav-arrow,.nav-count{display:none}.side-bottom{margin:0;padding:0;position:absolute;right:18px;top:12px}.theme-button{font-size:22px;padding:0 6px}.workspace{width:100%;margin:0}.topbar{height:43px;padding:0 20px}.breadcrumb{font-size:7px;letter-spacing:.6px}.breadcrumb span{padding:0 5px}.course-badge{font-size:6px;letter-spacing:.5px;gap:4px}.course-badge i{width:4px;height:4px}main{padding:26px 20px 30px}.hero{grid-template-columns:1fr 115px;margin-bottom:23px;gap:0}.hero-art{height:120px;align-self:start;margin-top:28px}.hero-art .art-caption{font-size:10px;bottom:-3px}.eyebrow{font-size:8px;letter-spacing:1.1px}h1{font-size:32px;letter-spacing:-1.4px;margin-top:10px}.lead{font-size:11px;line-height:1.8}.hero .lead{max-width:260px}.hero .button-row{gap:7px;position:relative;min-width:290px}.btn{font-size:10px;padding:10px 12px;gap:14px}.stats{grid-template-columns:repeat(2,1fr);padding:0}.stat{padding:16px}.stat:nth-child(2){border:0}.stat:nth-child(-n+2){border-bottom:1px solid var(--line)}.stat-value{font-size:27px}.stat-label{font-size:9px}.stats .progress-bar{margin-top:6px}.source-notice{font-size:9px;margin-bottom:20px}h2{font-size:19px}.section-head{margin-top:26px}.section-head p{font-size:9px}.module-card{padding:14px}.module-card h3{font-size:12px}.module-card p{font-size:9px;line-height:1.65;margin-bottom:13px}.modules{gap:10px}.dashboard-bottom{grid-template-columns:1fr;gap:12px;margin-top:20px}.continue-card{padding:18px;gap:17px}.continue-card h3{font-size:13px}.continue-symbol{width:55px;height:65px}.daily{padding:20px}.daily blockquote{max-width:90%}footer{margin:0 20px;padding:16px 0;flex-direction:column;gap:5px;font-size:8px}.page-heading h1{font-size:30px}.filters{gap:7px}.search{width:100%;flex-basis:100%;min-width:0;font-size:12px}.filters select{flex:1;font-size:10px;min-width:0}.question-row{padding:14px 12px;gap:9px}.question-row h3{font-size:12px}.question-row .status-tag{font-size:7px}.question-row .q-number{font-size:14px;min-width:20px}.q-meta{font-size:8px;gap:8px}.question-row .icon-btn{padding:5px}.reader h1{font-size:28px}.answer{padding:20px 17px;font-size:13px;line-height:1.9}.reader-top{gap:5px}.reader-top .eyebrow{font-size:7px}.about-grid{grid-template-columns:1fr}.session-head{padding:12px;font-size:9px}.flashcard{padding:25px 18px;min-height:280px}.flashcard h2{font-size:23px}.reader-nav .btn{font-size:9px}.rating button{min-width:90px;font-size:10px}.setup-panel{padding:20px}.skip{left:20px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
.material-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:20px}.material-card{padding:20px;border:1px solid var(--line);background:var(--surface);border-radius:10px;display:flex;flex-direction:column;transition:transform .2s}.material-card:hover{transform:translateY(-3px)}.pdf-icon{font-size:11px;letter-spacing:1px;font-weight:700;color:var(--red);width:39px;height:47px;border:1px solid var(--red);border-radius:3px;display:grid;place-items:center;margin:20px 0}.material-card h3{font-size:13px}.material-card p{font-size:10px;color:var(--muted);margin:8px 0 20px;line-height:1.9}.material-card .module-bottom{margin-top:auto}.source-links{display:grid;gap:8px}.source-file{display:flex;align-items:center;gap:13px;border:1px solid var(--line);border-radius:7px;padding:11px 14px;font-size:12px}.source-file:hover{background:var(--bg)}.source-file small{display:block;font-size:9px;color:var(--muted)}.source-file>span:last-child{margin-left:auto}
@media(max-width:1000px){.material-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){.sidebar nav a{flex:1;flex-direction:column;gap:3px;font-size:8px;padding:8px 3px;min-width:0}.sidebar nav a>span:first-child{font-size:16px}.sidebar nav{gap:0}.material-grid{gap:10px}.material-card{padding:15px}.material-card h3{font-size:12px}.material-card .module-top{font-size:7px}.material-card .module-bottom{font-size:8px}.material-card p{font-size:9px}.material-card .pdf-icon{margin:15px 0}.flash-answer{font-size:14px}.flash-answer p{margin:20px 0}}
@media(max-width:400px){.material-grid{grid-template-columns:1fr}.hero{grid-template-columns:1fr 90px}h1{font-size:29px}.course-badge{display:none}}
.answer p,.flash-answer p{overflow-x:auto;overflow-y:hidden;max-width:100%;padding-bottom:3px}.quiz-choice{overflow-x:auto}.reader{min-width:0}.module-card{min-width:0}