:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:#0f172a;--background:#f8fafc;--text:#0f172a;--muted:#64748b;--border:#e2e8f0;--surface:#fff;--surface-muted:#e2e8f0;--accent:#0ea5e9;background-color:#f8fafc;font-family:Inter,system-ui,sans-serif;font-weight:400;line-height:1.5}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;color:#e2e8f0;--background:#0b1120;--text:#e2e8f0;--muted:#94a3b8;--border:#1f2937;--surface:#0f172a;--surface-muted:#1f2937;--accent:#38bdf8;background-color:#0b1120}}*{box-sizing:border-box}body{background:var(--background,#f8fafc);min-height:100vh;color:var(--text);margin:0}#root{max-width:1200px;margin:0 auto;padding:32px 20px 60px}a{color:inherit}.app{flex-direction:column;gap:32px;display:flex}.hero{grid-template-columns:1.6fr 1fr;align-items:center;gap:24px;padding:32px 0 8px;display:grid}.eyebrow{text-transform:uppercase;letter-spacing:2px;color:var(--muted);margin:0 0 8px;font-size:12px}.subtitle{color:var(--muted);margin-top:12px}.hero-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;gap:16px;padding:20px;display:grid}.hero-card input{border:1px solid var(--border);width:100%;color:var(--text);background:0 0;border-radius:8px;padding:8px 12px}.label{color:var(--muted);margin-bottom:6px;font-size:12px;display:block}.today{margin:0;font-weight:600}.quick-links{flex-wrap:wrap;gap:12px;display:flex}.quick-links a{border:1px solid var(--border);color:var(--text);border-radius:999px;padding:8px 12px;font-size:13px;text-decoration:none}.stats{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;display:grid}.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:20px}.stat-title{color:var(--muted);margin:0 0 6px;font-size:13px}.stat-subtitle{color:var(--muted);margin:8px 0 0;font-size:13px}.progress{background:var(--surface-muted);border-radius:999px;height:10px;margin-top:12px;overflow:hidden}.progress-fill{background:linear-gradient(90deg, var(--accent), #5eead4);border-radius:999px;height:100%}.filters{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;display:grid}.filter-group{flex-direction:column;gap:6px;display:flex}.filter-group select,.filter-group input{border:1px solid var(--border);color:var(--text);background:0 0;border-radius:10px;padding:10px 12px}.week-grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;display:grid}.week-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;gap:10px;padding:16px;display:grid}.section-header h2{margin:0 0 6px}.section-header p{color:var(--muted);margin:0}.topic-grid{gap:16px;display:grid}.topic-list{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px;display:grid}.topic-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;gap:8px;padding:16px;display:grid}.topic-card h3{margin:0 0 4px;font-size:16px}.days,.day-list{gap:16px;display:grid}.day-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;gap:16px;padding:20px;display:grid}.day-card.today{border-color:var(--accent);box-shadow:0 0 0 2px #5eead44d}.day-card header{flex-wrap:wrap;justify-content:space-between;gap:16px;display:flex}.focus{color:var(--muted);margin:6px 0 0}.day-meta{flex-direction:column;align-items:flex-end;gap:10px;display:flex}.pill{text-transform:uppercase;letter-spacing:1px;color:var(--accent);background:#5eead426;border-radius:999px;padding:4px 10px;font-size:12px}.pill.revision{color:#60a5fa;background:#3b82f626}.ghost{border:1px solid var(--border);cursor:pointer;color:var(--text);background:0 0;border-radius:8px;padding:6px 12px;font-size:12px}.video{flex-wrap:wrap;gap:8px;font-size:14px;display:flex}.video a{color:var(--accent);text-decoration:none}.notes{color:var(--muted);margin:0;font-size:13px}.problem-list{gap:8px;margin:0;padding:0;list-style:none;display:grid}.problem-list label{border:1px solid var(--border);border-radius:10px;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;padding:8px 12px;display:grid}.problem-name{font-weight:500}.problem-section{color:var(--muted);font-size:12px}@media (width<=900px){.hero{grid-template-columns:1fr}.day-meta{align-items:flex-start}}