:root{color-scheme:light;--ink:#102c3f;--muted:#5c7483;--line:#dbe7eb;--bg:#f4f7f7;--white:#fff;--navy:#071f35;--mint:#52d7b5;--teal:#087d79;--light-mint:#e8f8f2;--gold:#eed19a;--shadow:0 12px 38px rgba(12,46,60,.07);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif}*{box-sizing:border-box}html{height:100%;-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--ink);min-height:100%;-webkit-tap-highlight-color:transparent}button,input,select{font:inherit}button{cursor:pointer}button:disabled{opacity:.42;cursor:not-allowed}a{color:var(--teal)}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #38bdab;outline-offset:2px}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(27px,5vw,37px);letter-spacing:-1.35px;line-height:1.13}h2{font-size:23px;letter-spacing:-.75px}h3{font-size:17px;letter-spacing:-.3px}p{line-height:1.68}.boot{margin:45vh auto;text-align:center;color:var(--muted)}.app-shell{max-width:1020px;margin:auto;padding:0 18px 118px}.topbar{padding:calc(13px + env(safe-area-inset-top)) 0 20px;display:flex;align-items:center;justify-content:space-between;gap:14px}.brand{display:flex;align-items:center;gap:11px;border:0;background:none;color:var(--ink);text-align:left;padding:0}.mark{height:41px;width:41px;border-radius:14px;background:var(--navy);display:grid;place-items:center;flex-shrink:0}.mark svg{width:29px;height:29px}.brand-title{font-weight:850;letter-spacing:-.5px;font-size:17px;line-height:1.18}.brand-sub{font-size:10px;font-weight:800;letter-spacing:1.9px;color:var(--muted);margin-top:3px}.top-right{display:flex;align-items:center;gap:9px}.top-progress{font-size:12px;font-weight:750;color:var(--muted);white-space:nowrap}.round-btn{border:1px solid var(--line);width:39px;height:39px;border-radius:13px;background:var(--white);color:var(--ink);display:grid;place-items:center}.round-btn svg{width:18px;height:18px}.eyebrow{text-transform:uppercase;font-weight:850;letter-spacing:1.8px;font-size:10px;color:var(--teal);margin-bottom:10px}.eyebrow.light{color:#8fdfcd}.hero{background:linear-gradient(115deg,#09213b,#083c4b 83%);color:#fff;border-radius:24px;padding:26px 25px;overflow:hidden;position:relative;min-height:232px;box-shadow:0 18px 40px rgba(13,47,63,.12)}.hero:after{content:"";width:240px;height:240px;position:absolute;right:-80px;top:-52px;border:1px solid rgba(148,232,213,.25);border-radius:50%;box-shadow:0 0 0 34px rgba(255,255,255,.03),0 0 0 69px rgba(255,255,255,.025);pointer-events:none}.hero h1{position:relative;z-index:2;max-width:530px;margin-bottom:12px}.hero p{color:#d2e4e6;max-width:580px;font-size:14px;margin-bottom:19px;position:relative;z-index:2}.hero .btn{position:relative;z-index:2}.hero-kicker{color:#a3e8d9;font-weight:800;font-size:11px;letter-spacing:1.5px;text-transform:uppercase;margin-bottom:13px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:12px;border:0;padding:12px 16px;font-size:13px;font-weight:800;line-height:1.2;text-decoration:none;background:var(--navy);color:#fff;transition:transform .15s}.btn:active,.action-card:active,.lesson-row:active{transform:scale(.985)}.btn-mint{background:var(--mint);color:#062f34}.btn-soft{background:#e7f6f1;color:#075e59}.btn-outline{border:1px solid var(--line);background:var(--white);color:var(--ink)}.btn-small{font-size:12px;padding:9px 12px;border-radius:10px}.btn-block{width:100%}.ghost{border:0;background:transparent;color:var(--teal);font-weight:800;font-size:13px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:11px;margin:17px 0 22px}.stat{border:1px solid var(--line);border-radius:16px;background:var(--white);padding:15px 13px;min-width:0}.stat-number{font-size:25px;font-weight:850;letter-spacing:-1px;margin-bottom:3px}.stat-label{font-size:11px;color:var(--muted);line-height:1.35}.panel{background:var(--white);border:1px solid var(--line);border-radius:18px;padding:19px;box-shadow:var(--shadow)}.two-col{display:grid;grid-template-columns:1.25fr 1fr;gap:15px}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;margin:28px 0 13px}.section-head h2{margin:0}.subtle{color:var(--muted);font-size:13px}.panel h3{margin-bottom:9px}.progressbar{height:8px;background:#e8eff0;border-radius:50px;overflow:hidden}.progressbar i{display:block;height:100%;background:linear-gradient(90deg,#0a928b,#6be1c2);border-radius:inherit}.progress-top{display:flex;justify-content:space-between;gap:9px;font-size:12px;font-weight:700;margin-bottom:10px}.daily-text{font-size:29px;font-weight:850;letter-spacing:-1px;margin:0 0 12px}.daily-text span{font-size:14px;color:var(--muted);font-weight:600}.daily-note{font-size:12px;color:var(--muted);margin:11px 0 0}.next-panel{display:flex;align-items:start;justify-content:space-between;gap:8px}.next-panel h3{font-size:20px;line-height:1.25}.pill{display:inline-block;border-radius:99px;background:#e6f7f1;color:#0a766b;padding:5px 9px;font-size:10px;font-weight:850;line-height:1.1}.pill.blue{background:#e6effe;color:#2854a7}.pill.orange{background:#fff0dc;color:#94601b}.pill.gray{background:#eaf0f2;color:#576b7a}.meta{display:flex;flex-wrap:wrap;gap:9px;align-items:center;font-size:11px;color:var(--muted);margin-bottom:12px}.meta span{display:inline-flex;gap:4px;align-items:center}.action-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.action-card{border:1px solid var(--line);background:var(--white);border-radius:17px;text-align:left;padding:17px;min-height:126px;box-shadow:var(--shadow);color:var(--ink)}.action-icon{width:33px;height:33px;display:grid;place-items:center;border-radius:12px;background:var(--light-mint);color:var(--teal);font-size:19px;margin-bottom:13px}.action-card strong{display:block;font-size:14px;margin-bottom:5px}.action-card small{display:block;color:var(--muted);font-size:11px;line-height:1.5}.track-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:11px}.track-card{border:1px solid var(--line);background:var(--white);border-radius:16px;padding:15px;text-align:left;color:var(--ink);display:flex;gap:12px;align-items:start}.track-card .track-icon{font-size:22px;border-radius:13px;background:#eaf5f3;width:39px;height:39px;display:grid;place-items:center;flex-shrink:0}.track-card h3{margin:0 0 5px;font-size:14px}.track-card p{color:var(--muted);font-size:11px;line-height:1.45;margin-bottom:11px}.track-card .progressbar{height:5px}.track-card .progress-top{font-size:10px}.track-card .progress-top span:first-child{color:var(--muted)}.page-title{font-size:31px;margin:0 0 8px}.page-intro{color:var(--muted);font-size:14px;max-width:640px;margin-bottom:20px}.filter-scroll{display:flex;gap:8px;overflow:auto;padding-bottom:8px;scrollbar-width:none}.filter-scroll::-webkit-scrollbar{display:none}.chip{flex-shrink:0;padding:9px 12px;background:var(--white);border:1px solid var(--line);border-radius:99px;font-weight:750;color:var(--muted);font-size:12px}.chip.selected{background:var(--navy);color:#fff;border-color:var(--navy)}.input{width:100%;padding:13px 14px;border:1px solid var(--line);border-radius:12px;background:var(--white);color:var(--ink);font-size:14px;outline:none}.search{margin-bottom:15px}.track-section{border:1px solid var(--line);border-radius:17px;background:var(--white);overflow:hidden;margin:11px 0}.track-head{width:100%;display:flex;align-items:center;gap:12px;text-align:left;background:transparent;border:0;padding:17px;color:var(--ink)}.track-head .track-icon{font-size:21px;width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:#e6f5f0;flex-shrink:0}.track-head-info{flex:1;min-width:0}.track-head strong{display:block;font-size:15px;margin-bottom:5px}.track-head small{display:block;color:var(--muted);font-size:11px}.chevron{font-size:21px;color:var(--muted)}.track-contents{border-top:1px solid var(--line)}.lesson-row{width:100%;display:flex;align-items:center;gap:12px;border:0;border-bottom:1px solid var(--line);background:transparent;color:var(--ink);padding:13px 17px;text-align:left}.lesson-row:last-child{border-bottom:0}.lesson-number{width:31px;height:31px;border-radius:50%;background:#edf3f3;display:grid;place-items:center;font-size:11px;color:var(--muted);font-weight:850;flex-shrink:0}.lesson-number.done{background:#ddf5e9;color:#147b6a}.lesson-title{font-weight:750;font-size:13px;line-height:1.4;display:block}.lesson-min{color:var(--muted);font-size:11px;margin-top:4px;display:block}.lesson-row .arrow{color:var(--muted);margin-left:auto}.back-button{background:none;border:0;color:var(--teal);font-weight:800;padding:0;margin-bottom:15px;font-size:13px}.lesson-head{background:linear-gradient(145deg,#0b2a42,#145264);padding:24px;border-radius:21px;color:white;margin-bottom:15px}.lesson-head .pill{background:#ffffff22;color:#d9f9ee}.lesson-head h1{margin:15px 0 10px}.lesson-head p{font-size:15px;color:#cfdee1;margin:0}.reading{background:var(--white);border:1px solid var(--line);border-radius:19px;padding:24px;margin-bottom:13px}.reading h3{font-size:16px;margin:0 0 12px}.reading p{font-size:15px;line-height:1.83;color:#2e4957;margin:0}.section-index{font-size:11px;font-weight:850;color:var(--teal);letter-spacing:1.4px;margin-bottom:9px}.checkpoint{background:#e9f7f2;border:1px solid #d0e9df;border-radius:18px;padding:21px;margin:15px 0}.checkpoint h3{margin-bottom:9px}.answer-option{display:block;text-align:left;width:100%;border:1px solid var(--line);background:var(--white);border-radius:12px;padding:12px 13px;margin:8px 0;color:var(--ink);font-size:13px;line-height:1.45}.answer-option.correct{border-color:#48b79a;background:#e7f8ee}.answer-option.wrong{border-color:#e8b0a8;background:#fff0ed}.feedback{padding:12px;background:#fff;border-radius:12px;margin-top:10px;font-size:13px;line-height:1.6}.link-list{display:grid;gap:8px}.ref-link{display:flex;gap:11px;align-items:center;padding:12px;border:1px solid var(--line);border-radius:12px;text-decoration:none;color:var(--ink);font-size:12px;line-height:1.3}.ref-link small{color:var(--muted);display:block;margin-top:4px}.ref-link b{display:block;font-size:13px}.lesson-actions{display:flex;flex-wrap:wrap;gap:9px;margin:17px 0}.big-card{border:1px solid var(--line);border-radius:22px;background:var(--white);box-shadow:var(--shadow);padding:25px;min-height:290px;display:flex;align-items:center;justify-content:center;text-align:center;flex-direction:column;cursor:pointer;width:100%;color:var(--ink)}.big-card .card-label{font-size:10px;letter-spacing:1.7px;font-weight:850;text-transform:uppercase;color:var(--teal);margin-bottom:21px}.big-card .card-face{font-size:clamp(18px,3.4vw,25px);font-weight:780;line-height:1.53;max-width:600px}.big-card .flip-hint{margin-top:25px;color:var(--muted);font-size:12px}.review-actions{display:grid;grid-template-columns:repeat(4,1fr);gap:9px;margin-top:13px}.rating{border:1px solid var(--line);border-radius:13px;padding:14px 4px;background:var(--white);font-size:13px;font-weight:800;color:var(--ink)}.rating small{display:block;font-size:10px;margin-top:4px;font-weight:600;color:var(--muted)}.rating.again{background:#fff2ed;color:#a34d32}.rating.good{background:#e9f8f2;color:#087965}.review-progress{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}.empty-state{text-align:center;padding:34px 22px;border:1px dashed var(--line);border-radius:18px;color:var(--muted);background:var(--white)}.empty-state strong{color:var(--ink)}.quiz-setup{display:grid;grid-template-columns:1fr 1fr;gap:14px}.field-label{font-size:12px;font-weight:850;margin-bottom:8px;display:block}.quiz-question{font-size:20px;line-height:1.4;margin:18px 0}.quiz-answer.correct{background:#dff8ed}.quiz-results{text-align:center;padding:30px 20px}.quiz-score{font-size:62px;font-weight:900;letter-spacing:-3px;margin-bottom:8px}.muted{color:var(--muted)}.library-tabs{display:flex;gap:7px;overflow-x:auto;margin:6px 0 19px;padding-bottom:6px}.library-tabs button{white-space:nowrap}.glossary-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:9px}.term-card{border:1px solid var(--line);background:var(--white);border-radius:12px;padding:14px}.term-card strong{color:var(--teal);font-size:13px}.term-card p{font-size:12px;line-height:1.5;color:var(--muted);margin:7px 0 0}.timeline{border-left:2px solid #c4e5da;padding-left:22px;margin-left:9px}.time-item{position:relative;margin-bottom:24px}.time-item:before{content:"";position:absolute;left:-29px;top:4px;height:12px;width:12px;border-radius:50%;background:#39b998;border:3px solid var(--bg)}.time-item small{color:var(--teal);font-weight:850;letter-spacing:.4px}.time-item h3{margin:5px 0}.time-item p{color:var(--muted);font-size:13px;margin:0}.source-filter{margin-bottom:17px}.tool-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}.tool-grid .panel h3{margin-bottom:5px}.tool-value{font-size:31px;font-weight:850;letter-spacing:-1px;margin:12px 0}.tool-value small{font-size:13px;font-weight:600;color:var(--muted)}.mini-note{font-size:12px;color:var(--muted);line-height:1.6}.settings-group{display:grid;gap:12px;margin-bottom:20px}.setting-row{display:flex;gap:14px;justify-content:space-between;align-items:center;padding:16px;border:1px solid var(--line);border-radius:14px;background:var(--white)}.setting-row strong{font-size:13px}.setting-row p{font-size:11px;color:var(--muted);margin:5px 0 0}.setting-row select{max-width:160px;min-width:98px;padding:9px;border:1px solid var(--line);background:var(--white);color:var(--ink);border-radius:9px}.footer-meta{margin-top:29px;text-align:center;font-size:11px;color:var(--muted);line-height:1.8}.bottom-nav{position:fixed;z-index:20;bottom:0;left:0;right:0;background:color-mix(in srgb,var(--white) 96%,transparent);border-top:1px solid var(--line);padding:7px max(12px,env(safe-area-inset-right)) calc(6px + env(safe-area-inset-bottom));display:flex;justify-content:center;backdrop-filter:blur(16px)}.nav-inner{width:min(100%,720px);display:grid;grid-template-columns:repeat(5,1fr)}.nav-btn{background:none;border:0;color:var(--muted);display:grid;place-items:center;gap:3px;padding:8px 4px;border-radius:12px;font-size:10px;font-weight:800}.nav-btn svg{width:20px;height:20px;stroke-width:2}.nav-btn.active{color:var(--teal);background:#e7f7f1}.top-menu{position:absolute;z-index:50;right:19px;top:calc(67px + env(safe-area-inset-top));width:210px;background:var(--white);border:1px solid var(--line);border-radius:16px;box-shadow:0 12px 38px #0a324026;padding:7px}.top-menu button{display:block;text-align:left;width:100%;padding:11px;border:0;background:transparent;border-radius:9px;color:var(--ink);font-size:13px;font-weight:700}.top-menu button:hover{background:var(--light-mint)}.notice{padding:12px 15px;border-radius:12px;background:#fff5df;border:1px solid #f3e3be;color:#795923;font-size:12px;line-height:1.6;margin-bottom:14px}.toast{position:fixed;left:50%;bottom:calc(91px + env(safe-area-inset-bottom));transform:translateX(-50%);z-index:60;background:var(--navy);border-radius:14px;color:white;padding:11px 16px;font-size:12px;font-weight:700;box-shadow:0 6px 28px #081c2a38;max-width:90vw;text-align:center}.meter-ring{display:inline-grid;place-items:center;height:45px;width:45px;border-radius:50%;background:conic-gradient(#51d5b3 var(--p),#dcece9 0);flex-shrink:0}.meter-ring span{display:grid;place-items:center;background:var(--white);height:35px;width:35px;border-radius:50%;font-size:11px;color:var(--teal);font-weight:850}.narrow{max-width:740px;margin:auto}.wide-actions{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}.last-note{font-size:11px;color:var(--muted);text-align:center;margin-top:12px}.status-legend{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}.tag-stable{background:#e4f5ec;color:#0c745f}.tag-inprogress{background:#fff1df;color:#805624}#importFile{display:none}
@media(min-width:740px){.app-shell{padding-left:27px;padding-right:27px}.hero{padding:36px 35px}.panel{padding:23px}.reading{padding:30px}.lesson-head{padding:31px}.topbar{padding-top:21px}.stats{margin-top:20px}.track-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:620px){.two-col{grid-template-columns:1fr}.stats{gap:7px}.stat{padding:12px 10px;border-radius:13px}.stat-number{font-size:20px}.stat-label{font-size:10px}.action-grid{grid-template-columns:repeat(2,1fr)}.track-grid{grid-template-columns:1fr}.quiz-setup,.tool-grid{grid-template-columns:1fr}.glossary-grid{grid-template-columns:1fr}.hero{min-height:240px;padding:25px 22px}.hero h1{font-size:30px}.app-shell{padding-left:14px;padding-right:14px}.topbar{padding-bottom:14px}.top-progress{display:none}.reading{padding:20px}.reading p{font-size:14px}.lesson-head{padding:22px}.lesson-head h1{font-size:28px}.review-actions{gap:6px}.rating{font-size:11px}.rating small{font-size:9px}.setting-row{align-items:flex-start}}
html[data-theme="dark"]{color-scheme:dark;--ink:#e6f5f6;--muted:#9fb6c0;--line:#2a4653;--bg:#0b202e;--white:#143040;--navy:#071b2d;--light-mint:#163f3e;--shadow:0 12px 38px rgba(0,0,0,.14);--teal:#65d9bc}html[data-theme="dark"] .reading p{color:#d0e3e7}html[data-theme="dark"] .stat,html[data-theme="dark"] .track-section,html[data-theme="dark"] .panel,html[data-theme="dark"] .chip,html[data-theme="dark"] .action-card{box-shadow:none}html[data-theme="dark"] .lesson-number{background:#203c4a}html[data-theme="dark"] .lesson-number.done{background:#155c51;color:#baffeb}html[data-theme="dark"] .checkpoint{background:#153d3c;border-color:#276555}html[data-theme="dark"] .answer-option.correct{background:#1d5649}html[data-theme="dark"] .answer-option.wrong{background:#5b302d}html[data-theme="dark"] .bottom-nav{background:#102937e8}html[data-theme="dark"] .nav-btn.active{background:#1b5147;color:#b0ffe9}html[data-theme="dark"] .pill{background:#17483f;color:#bdffe9}html[data-theme="dark"] .notice{background:#433920;color:#f9e0a8;border-color:#68592f}html[data-theme="dark"] .meter-ring span{background:var(--white)}html[data-theme="dark"] .rating.good{background:#155847}html[data-theme="dark"] .rating.again{background:#653b37}html[data-theme="dark"] .feedback{background:#12313d}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}
