:root{--navy:#122541;--navy2:#1b3558;--blue:#2f6fed;--cyan:#15b8a6;--paper:#f4f7fb;--ink:#142033;--muted:#66758a;--line:#dce4ef;--card:#fff;--good:#167e69;--warn:#a75b17;--radius:18px}*{box-sizing:border-box}html{font-size:16px}body{background:var(--paper);color:var(--ink);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif;line-height:1.5}button{font:inherit}button:focus-visible{outline-offset:2px;outline:3px solid #80a7ff}.app-shell{min-height:100vh}.topbar{z-index:30;border-bottom:1px solid var(--line);background:#fff;justify-content:space-between;align-items:center;height:72px;padding:0 28px;display:flex;position:fixed;top:0;left:0;right:0}.brand-mark{align-items:center;gap:12px;display:flex}.brand-mark>span{background:linear-gradient(145deg,var(--blue),#173e91);color:#fff;border-radius:12px;place-items:center;width:38px;height:38px;font-weight:850;display:grid}.brand-mark div{flex-direction:column;display:flex}.brand-mark b{font-size:.95rem}.brand-mark small{color:var(--muted);font-size:.72rem}.save-state{color:var(--good);align-items:center;gap:7px;font-size:.82rem;font-weight:700;display:flex}.menu-btn,.close-btn{background:0 0;border:0;display:none}.sidebar{z-index:25;background:var(--navy);color:#fff;width:250px;padding:26px 18px;position:fixed;top:72px;bottom:0;left:0;overflow:auto}.profile{border-bottom:1px solid #ffffff1f;align-items:center;gap:12px;padding:0 10px 24px;display:flex}.avatar{background:var(--cyan);border-radius:50%;place-items:center;width:42px;height:42px;font-weight:850;display:grid}.profile div:last-child{flex-direction:column;display:flex}.profile span{color:#b9c8dc;font-size:.76rem}.sidebar nav{flex-direction:column;gap:6px;margin-top:22px;display:flex}.sidebar nav button{color:#bed0e7;text-align:left;cursor:pointer;background:0 0;border:0;border-radius:12px;align-items:center;gap:12px;min-height:46px;padding:0 12px;display:flex}.sidebar nav button span{flex:1}.sidebar nav button:hover,.sidebar nav button.active{color:#fff;background:#ffffff12}.sidebar nav button.active{box-shadow:inset 3px 0 var(--cyan)}.sidebar-note{color:#b9c8dc;border:1px solid #ffffff1f;border-radius:12px;gap:9px;margin-top:28px;padding:12px;display:flex}.sidebar-note svg{flex:none;margin-top:2px}.sidebar-note p{margin:0;font-size:.74rem}.workspace{max-width:1540px;margin-left:250px;padding:108px clamp(22px,4vw,64px) 64px}.welcome{justify-content:space-between;align-items:flex-end;gap:26px;margin-bottom:28px;display:flex}.eyebrow{color:var(--blue);letter-spacing:.13em;margin:0 0 7px;font-size:.72rem;font-weight:850}.welcome h1,.page-title h1{letter-spacing:-.04em;margin:0;font-size:clamp(2rem,4vw,3.2rem);line-height:1.04}.welcome>div>p:last-child,.page-title>p:last-child{color:var(--muted);max-width:720px;margin:12px 0 0;font-size:1rem}.primary,.secondary{cursor:pointer;border:0;border-radius:12px;justify-content:center;align-items:center;gap:9px;min-height:46px;padding:0 18px;font-weight:800;display:inline-flex}.primary{background:var(--blue);color:#fff;box-shadow:0 8px 20px #2f6fed2b}.secondary{color:var(--ink);border:1px solid var(--line);background:#fff}button:disabled{opacity:.48;cursor:not-allowed}.metric-grid{grid-template-columns:1.2fr 1fr 1fr;gap:16px;display:grid}.metric{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);flex-direction:column;justify-content:center;min-height:142px;padding:22px;display:flex}.metric.focus{flex-direction:row;justify-content:flex-start;align-items:center;gap:18px}.metric span,.domain-card span{color:var(--muted);font-size:.8rem;font-weight:700}.metric strong{margin:5px 0;font-size:1.35rem}.metric small{color:var(--muted)}.ring{--p:0deg;background:conic-gradient(var(--cyan) var(--p),#e7edf5 0);border-radius:50%;flex:none;place-items:center;width:74px;height:74px;display:grid;position:relative}.ring:after{content:"";background:#fff;border-radius:50%;position:absolute;inset:7px}.ring b{z-index:1}.content-grid{grid-template-columns:minmax(0,1.65fr) minmax(280px,.75fr);gap:18px;margin-top:18px;display:grid}.panel,.coach-card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:24px}.panel-head{justify-content:space-between;align-items:flex-start;display:flex}.panel-head h2,.coach-card h2{letter-spacing:-.02em;margin:0;font-size:1.35rem}.panel-head>span{color:var(--good);background:#e9f7f5;border-radius:999px;padding:5px 9px;font-size:.75rem;font-weight:800}.task-list{margin-top:15px}.task{border-top:1px solid var(--line);grid-template-columns:34px 1fr auto;align-items:center;gap:12px;padding:14px 0;display:grid}.task:first-child{border-top:0}.check{color:#fff;cursor:pointer;background:#fff;border:2px solid #c8d3e1;border-radius:8px;place-items:center;width:27px;height:27px;display:grid}.done .check,.plan-day.done .check{background:var(--good);border-color:var(--good)}.task div{flex-direction:column;display:flex}.task span,.plan-day small{color:var(--muted);font-size:.78rem}.task.done strong{color:var(--muted);text-decoration:line-through}.task-go,.coach-card button,.simulation-grid article button{color:var(--blue);cursor:pointer;background:0 0;border:0;align-items:center;gap:4px;font-weight:800;display:flex}.coach-card{background:linear-gradient(155deg,var(--navy),var(--navy2));color:#fff;position:relative;overflow:hidden}.coach-card:after{content:"";border:1px solid #ffffff17;border-radius:50%;width:170px;height:170px;position:absolute;top:-70px;right:-60px}.coach-card .eyebrow{color:#62ded0}.coach-card p:not(.eyebrow){color:#c5d3e4}.coach-card button{color:#fff;margin-top:10px;padding:0}.coach-icon{color:#62ded0;background:#ffffff13;border-radius:14px;place-items:center;width:48px;height:48px;margin-bottom:22px;display:grid}.domain-row{grid-template-columns:repeat(4,1fr);gap:14px;margin-top:18px;display:grid}.domain-card{border:1px solid var(--line);background:#fff;border-radius:15px;grid-template-columns:40px 1fr auto;align-items:center;gap:10px;padding:17px;display:grid}.domain-card>svg{color:var(--blue);background:#edf3ff;border-radius:11px;width:38px;height:38px;padding:9px}.domain-card div{flex-direction:column;display:flex}.domain-card strong{font-size:.86rem}.domain-card>b{color:var(--blue)}.page{max-width:1060px}.page-title{margin-bottom:28px}.page-title h1{font-size:clamp(2rem,4vw,2.8rem)}.assessment{max-width:850px;margin:0 auto}.assessment-top{justify-content:space-between;align-items:end;display:flex}.assessment-top h1{margin:0}.assessment-top>span,.buddy-meta>span{color:var(--blue);background:#e9f0fe;border-radius:999px;padding:7px 11px;font-weight:800}.stepbar,.bar{background:#e4eaf2;border-radius:999px;height:7px;overflow:hidden}.stepbar{margin:20px 0}.stepbar i,.bar i{background:linear-gradient(90deg,var(--blue),var(--cyan));height:100%;display:block}.question-card,.buddy-card{border:1px solid var(--line);background:#fff;border-radius:22px;padding:clamp(22px,4vw,42px)}.question-card>small{color:var(--blue);font-weight:800}.question-card h2,.buddy-card h2{margin:12px 0 24px;font-size:1.35rem;line-height:1.4}.choices{gap:10px;display:grid}.choices button{text-align:left;border:1px solid var(--line);min-height:58px;color:var(--ink);cursor:pointer;background:#fff;border-radius:12px;align-items:center;gap:13px;padding:10px 14px;display:flex}.choices button span{background:#eef2f7;border-radius:9px;flex:none;place-items:center;width:32px;height:32px;font-weight:850;display:grid}.choices button:hover,.choices button.selected{border-color:var(--blue);background:#f4f7ff}.choices button.selected span{background:var(--blue);color:#fff}.choices button.correct{border-color:var(--good);background:#eefaf7}.choices button.correct span{background:var(--good);color:#fff}.choices button.wrong{background:#fff4f4;border-color:#c95d5d}.choices button.wrong span{color:#fff;background:#c95d5d}.assessment-actions{justify-content:space-between;margin-top:18px;display:flex}.score-grid{grid-template-columns:repeat(4,1fr);gap:14px;margin:25px 0;display:grid}.score-grid article{border:1px solid var(--line);background:#fff;border-radius:15px;padding:20px}.score-grid span{color:var(--muted);font-weight:700;display:block}.score-grid strong{font-size:2rem}.score-grid .bar{margin:14px 0 8px}.plan-list{gap:10px;display:grid}.plan-day{border:1px solid var(--line);background:#fff;border-radius:14px;grid-template-columns:32px 62px 1fr auto;align-items:center;gap:14px;padding:15px 18px;display:grid}.plan-day>span{color:var(--blue);font-size:.72rem;font-weight:850}.plan-day>div{flex-direction:column;display:flex}.plan-day>b{color:var(--muted);font-size:.78rem}.buddy-card{max-width:790px}.buddy-meta{justify-content:space-between;align-items:center;display:flex}.buddy-card>.primary{margin-top:20px}.feedback{border-left:4px solid var(--cyan);background:#eefaf8;border-radius:0 10px 10px 0;margin-top:16px;padding:14px 16px}.feedback p{margin:4px 0 0}.flashcard{width:min(680px,100%);min-height:350px;color:var(--ink);text-align:center;cursor:pointer;background:linear-gradient(145deg,#fff,#edf3fc);border:1px solid #aac0df;border-radius:24px;flex-direction:column;justify-content:center;align-items:center;padding:40px;display:flex;box-shadow:0 18px 40px #1d3b6b12}.flashcard.flipped{background:linear-gradient(145deg,var(--navy),var(--navy2));color:#fff}.flashcard small{letter-spacing:.15em;color:var(--blue);font-weight:850}.flashcard.flipped small{color:#62ded0}.flashcard strong{max-width:560px;margin:28px 0;font-size:clamp(1.7rem,4vw,2.5rem)}.flashcard span{color:var(--muted)}.flashcard.flipped span{color:#bfd0e4}.recall-actions{gap:12px;margin-top:18px;display:flex}.card-count{color:var(--muted);font-size:.85rem}.empty-state{text-align:center;background:#fff;border:1px dashed #b8c6d8;border-radius:20px;padding:60px 20px}.empty-state svg{width:46px;height:46px;color:var(--blue)}.empty-state h2{margin-bottom:5px}.empty-state p{color:var(--muted)}.error-list{gap:14px;display:grid}.error-list article{border:1px solid var(--line);background:#fff;border-left:5px solid #e49b4e;border-radius:14px;padding:20px}.error-list article>div{color:var(--blue);justify-content:space-between;display:flex}.error-list h3{font-size:1rem}.error-list p{color:var(--muted)}.error-list b{color:var(--warn);font-size:.78rem}.simulation-grid{grid-template-columns:repeat(3,1fr);gap:16px;display:grid}.simulation-grid article{border:1px solid var(--line);background:#fff;border-radius:18px;padding:24px}.sim-icon{width:48px;height:48px;color:var(--blue);background:#edf3ff;border-radius:14px;place-items:center;margin-bottom:22px;display:grid}.simulation-grid article>span{color:var(--blue);letter-spacing:.11em;font-size:.72rem;font-weight:850}.simulation-grid h2{font-size:1.25rem}.simulation-grid p{color:var(--muted);min-height:72px}.simulation-grid button:disabled{color:var(--muted)}.review-summary{grid-template-columns:repeat(4,1fr);gap:12px;display:grid}.review-summary article{border:1px solid var(--line);background:#fff;border-radius:15px;flex-direction:column;padding:20px;display:flex}.review-summary strong{font-size:2rem}.review-summary span{color:var(--muted)}.review-table{border:1px solid var(--line);background:#fff;border-radius:16px;margin-top:18px;overflow:hidden}.review-table>div{border-top:1px solid var(--line);grid-template-columns:1fr 1.4fr .7fr 1.3fr;gap:12px;padding:14px 18px;display:grid}.review-table .review-head{color:var(--muted);background:#eef3fa;border-top:0;font-size:.75rem;font-weight:850}.review-table em{color:var(--warn);font-style:normal;font-weight:800}.release-gates{border:1px solid var(--line);background:#fff;border-radius:16px;margin-top:18px;padding:22px}.release-gates h2{margin-top:0}.release-gates p{align-items:center;gap:10px;display:flex}.release-gates p span{border:2px solid #aebed2;border-radius:5px;width:16px;height:16px}.loading{min-height:60vh;color:var(--muted);place-items:center;display:grid}.pulse{background:var(--blue);border-radius:14px;width:48px;height:48px;animation:1.3s infinite pulse}.scrim{display:none}@keyframes pulse{50%{opacity:.35;transform:scale(.92)}}@media (max-width:1050px){.metric-grid{grid-template-columns:1fr 1fr}.metric.focus{grid-column:1/-1}.domain-row{grid-template-columns:1fr 1fr}.simulation-grid{grid-template-columns:1fr}.review-summary{grid-template-columns:1fr 1fr}}@media (max-width:760px){.topbar{height:64px;padding:0 16px}.menu-btn{background:#eef3fa;border:0;border-radius:11px;place-items:center;width:40px;height:40px;display:grid}.brand-mark>span,.brand-mark small{display:none}.save-state{font-size:0}.sidebar{z-index:50;width:min(88vw,300px);transition:all .2s;top:0;transform:translate(-105%)}.sidebar.open{transform:none}.close-btn{color:#fff;background:#ffffff12;border-radius:10px;place-items:center;width:40px;height:40px;margin-bottom:12px;margin-left:auto;display:grid}.scrim{z-index:40;background:#0d1e35aa;border:0;display:block;position:fixed;inset:0}.workspace{margin-left:0;padding:88px 16px 42px}.welcome{flex-direction:column;align-items:flex-start}.welcome .primary{width:100%}.metric-grid,.content-grid,.domain-row,.score-grid,.review-summary{grid-template-columns:1fr}.metric.focus{grid-column:auto}.panel,.coach-card{padding:19px}.task{grid-template-columns:30px 1fr}.task-go{grid-column:2}.domain-row{gap:10px}.assessment-top{align-items:flex-start}.assessment-top>span{font-size:.75rem}.question-card,.buddy-card{padding:20px}.plan-day{grid-template-columns:30px 52px 1fr}.plan-day>b{grid-column:3}.review-table{overflow-x:auto}.review-table>div{min-width:680px}.recall-actions{flex-direction:column}.recall-actions button{width:100%}}@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}.metric.focus>div:last-child{flex-direction:column;display:flex}.lesson-layout{grid-template-columns:300px 1fr;align-items:start;gap:22px;display:grid}.lesson-menu{gap:10px;display:grid}.lesson-menu button{text-align:left;border:1px solid var(--line);color:var(--ink);background:#fff;border-radius:16px;gap:5px;padding:16px;display:grid}.lesson-menu button.active{border-color:var(--cobalt);box-shadow:0 0 0 3px #2d5cf61a}.lesson-menu span,.lesson-domain{letter-spacing:.12em;text-transform:uppercase;color:var(--cobalt);font-size:11px;font-weight:800}.lesson-menu small{color:var(--muted)}.lesson-reader{border:1px solid var(--line);box-shadow:var(--shadow);background:#fff;border-radius:22px;padding:30px}.lesson-reader h2{margin:10px 0 24px;font-size:30px}.lesson-reader h3{margin:22px 0 7px;font-size:15px}.lesson-reader p{color:var(--muted);line-height:1.7}.recall-box{border-left:4px solid var(--turquoise);background:#eef7f5;border-radius:10px;margin:24px 0;padding:18px 20px}.recall-box p{color:var(--ink);margin:6px 0 0}.progress-hero{grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:22px;display:grid}.progress-hero article{border:1px solid var(--line);background:#fff;border-radius:18px;gap:5px;padding:20px;display:grid}.progress-hero span,.progress-hero small{color:var(--muted)}.progress-hero strong{font-size:28px}.mastery-list{gap:18px;display:grid}.mastery-list>div{grid-template-columns:145px 1fr 50px;align-items:center;gap:14px;display:grid}.mastery-list span{font-weight:700;display:grid}.mastery-list small{color:var(--muted);font-weight:400}.mastery-list b{text-align:right}.activity-list{gap:14px;display:grid}.activity-list>div{border-bottom:1px solid var(--line);align-items:flex-start;gap:11px;padding-bottom:13px;display:flex}.activity-list svg{color:var(--turquoise);margin-top:2px}.activity-list span{display:grid}.activity-list small{color:var(--muted);margin-top:3px}.assessment-top>span{align-items:center;gap:6px;display:flex}.simulation-grid article>small{color:var(--turquoise);margin:10px 0;font-weight:800;display:block}@media (max-width:850px){.lesson-layout{grid-template-columns:1fr}.lesson-menu,.progress-hero{grid-template-columns:repeat(2,1fr)}}@media (max-width:560px){.lesson-menu,.progress-hero{grid-template-columns:1fr}.lesson-reader{padding:22px}.mastery-list>div{grid-template-columns:105px 1fr 40px}.lesson-reader h2{font-size:25px}}.draft-badge{color:#7a4100;background:#fff4e5;border:1px solid #e49b4e;border-radius:8px;margin:0 0 12px;padding:6px 10px;font-size:.78rem;font-weight:700;display:inline-block}@media (max-width:760px){.save-state.local,.save-state.error{font-size:.72rem}}.save-state.saving,.save-state.idle{color:var(--muted)}.save-state.local{color:var(--warn)}.save-state.error{color:#b42318}.draft-badge{color:#7a4100;background:#fff4e5;border:1px solid #e49b4e;border-radius:8px;width:fit-content;margin:0 0 12px;padding:6px 10px;font-size:.78rem;font-weight:700;display:block}.stimulus{border-left:4px solid var(--blue);background:#f4f7fb;border-radius:0 10px 10px 0;margin:10px 0 0;padding:12px 14px}.signout{color:#bed0e7;margin:18px 12px 0;font-size:.85rem;display:block}.auth-page{border:1px solid var(--line);background:#fff;border-radius:18px;max-width:460px;margin:12vh auto;padding:32px}.auth-page h1{margin-top:0}.auth-page label{margin:14px 0 6px;font-weight:700;display:block}.auth-page input,.auth-page select{border:1px solid var(--line);width:100%;min-height:44px;font:inherit;border-radius:10px;padding:0 12px}.auth-page .primary{width:100%;margin-top:18px}.auth-page .note{color:var(--muted);font-size:.85rem}.auth-page .dev{background:#fff8ee;border:1px dashed #e49b4e;border-radius:10px;padding:10px 12px;font-size:.85rem}@media (max-width:760px){.save-state.local,.save-state.error{font-size:.72rem}}