:root{--bg: #F2E4DE;--bg-alt: #EDE0DC;--surface: #FFFFFF;--surface-alt: #FDFBFA;--brand: #5A3A2E;--brand-dark: #4A2F24;--brand-soft: rgba(90, 58, 46, .08);--border: rgba(90, 58, 46, .16);--border-strong: rgba(90, 58, 46, .3);--text: #2E1F18;--text-2: #8A756B;--text-on-brand: #FBF4F0;--ok: #3E7C4F;--ok-soft: rgba(62, 124, 79, .12);--open: #D9A441;--open-soft: rgba(217, 164, 65, .18);--locked: #B98A6B;--locked-soft: rgba(185, 138, 107, .16);--radius-card: 16px;--radius-btn: 11px;--radius-pill: 999px;--shadow-card: 0 1px 2px rgba(46, 31, 24, .04), 0 6px 20px rgba(46, 31, 24, .05);--font: "Onest", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;--header-h: 64px;--maxw: 920px}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:var(--font);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;line-height:1.5}a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}.app-header{height:var(--header-h);background:var(--surface);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 20px;position:sticky;top:0;z-index:10}.app-header .brand{font-weight:800;font-size:17px;color:var(--brand);letter-spacing:-.01em}.app-header .brand span{color:var(--text-2);font-weight:600}.app-header .user{display:flex;align-items:center;gap:14px;font-size:14px;color:var(--text-2)}.container{max-width:var(--maxw);margin:0 auto;padding:28px 20px 64px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--font);font-weight:600;font-size:15px;padding:11px 20px;border-radius:var(--radius-btn);border:1px solid transparent;cursor:pointer;transition:background .15s,opacity .15s;background:var(--brand);color:var(--text-on-brand)}.btn:hover{background:var(--brand-dark)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.ghost{background:transparent;color:var(--brand);border-color:var(--border-strong)}.btn.ghost:hover{background:var(--brand-soft)}.btn.sm{padding:7px 13px;font-size:13px}.btn.danger{background:var(--locked)}.btn.ok{background:var(--ok)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);box-shadow:var(--shadow-card);padding:22px}.page-title{font-size:26px;font-weight:800;letter-spacing:-.02em;margin:0 0 4px}.page-sub{color:var(--text-2);margin:0 0 24px;font-size:15px}.kicker{color:var(--text-2);font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.04em}.progress-wrap{display:flex;align-items:center;gap:12px;margin:6px 0 26px}.progress-track{flex:1;height:10px;background:var(--brand-soft);border-radius:999px;overflow:hidden}.progress-fill{height:100%;background:var(--ok);border-radius:999px;transition:width .4s ease}.progress-label{font-size:14px;font-weight:700;color:var(--text-2);white-space:nowrap}.phase{margin-bottom:30px}.phase-title{font-size:14px;font-weight:700;color:var(--text-2);text-transform:uppercase;letter-spacing:.05em;margin:0 0 12px}.module-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}@media (max-width: 680px){.module-grid{grid-template-columns:1fr}}.module-card{display:flex;flex-direction:column;gap:8px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);padding:18px;text-decoration:none;color:var(--text);transition:border-color .15s,transform .1s,box-shadow .15s}.module-card.clickable:hover{border-color:var(--border-strong);box-shadow:var(--shadow-card);transform:translateY(-1px);text-decoration:none}.module-card.is-locked,.module-card.is-soon{opacity:.72}.module-card .m-top{display:flex;align-items:center;justify-content:space-between;gap:10px}.module-card .m-title{font-weight:700;font-size:16px}.module-card .m-sum{color:var(--text-2);font-size:13.5px}.module-card .m-meta{font-size:12.5px;color:var(--text-2);margin-top:2px}.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;padding:4px 10px;border-radius:var(--radius-pill);white-space:nowrap}.badge.ok{background:var(--ok-soft);color:var(--ok)}.badge.open{background:var(--open-soft);color:#9a6f1c}.badge.locked{background:var(--locked-soft);color:#8a5a3c}.badge.soon{background:var(--brand-soft);color:var(--text-2)}.lesson-list{display:flex;flex-direction:column;gap:10px}.lesson-row{display:flex;align-items:center;gap:14px;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:14px 16px;text-decoration:none;color:var(--text);transition:border-color .15s}.lesson-row:hover{border-color:var(--border-strong);text-decoration:none}.lesson-row .num{width:30px;height:30px;flex:0 0 30px;border-radius:999px;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:13px;background:var(--brand-soft);color:var(--brand)}.lesson-row.done .num{background:var(--ok-soft);color:var(--ok)}.lesson-row .l-title{font-weight:600;flex:1}.lesson-body{font-size:16.5px;line-height:1.72}.lesson-body p{margin:0 0 1.05em}.lesson-body strong{font-weight:700}.lesson-body h2{font-size:21px;margin:1.4em 0 .5em}.pdf-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;background:var(--bg-alt);border:1px dashed var(--border-strong);border-radius:14px;padding:40px 20px;text-align:center;color:var(--text-2);margin-bottom:24px}.pdf-placeholder .big{font-size:30px}.pdf-frame{width:100%;height:70vh;border:1px solid var(--border);border-radius:14px;margin-bottom:24px;background:var(--surface)}.block{margin-top:26px}.block h3{font-size:17px;margin:0 0 10px}.materials a{display:flex;align-items:center;gap:10px;padding:11px 14px;border:1px solid var(--border);border-radius:11px;margin-bottom:8px;color:var(--text)}.materials a:hover{border-color:var(--border-strong);text-decoration:none}.hw{background:var(--open-soft);border:1px solid rgba(217,164,65,.4);border-radius:12px;padding:16px 18px}.checklist{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}.checklist li{display:flex;gap:10px;align-items:flex-start}.checklist input{margin-top:3px;width:17px;height:17px;accent-color:var(--ok)}.lesson-foot{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:34px;padding-top:22px;border-top:1px solid var(--border);flex-wrap:wrap}.form{display:flex;flex-direction:column;gap:14px}.field label{display:block;font-size:13px;font-weight:600;color:var(--text-2);margin-bottom:6px}.field input,.field select{width:100%;font-family:var(--font);font-size:15px;padding:11px 13px;border:1px solid var(--border-strong);border-radius:10px;background:var(--surface-alt);color:var(--text)}.field input:focus,.field select:focus{outline:none;border-color:var(--brand)}.err{color:var(--locked);background:var(--locked-soft);padding:10px 13px;border-radius:10px;font-size:14px}.ok-msg{color:var(--ok);background:var(--ok-soft);padding:10px 13px;border-radius:10px;font-size:14px}.center-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.auth-card{width:100%;max-width:380px}.auth-card .logo{font-weight:800;font-size:20px;color:var(--brand);margin-bottom:4px}.auth-card .logo span{color:var(--text-2);font-weight:600;font-size:14px;display:block}.table{width:100%;border-collapse:collapse;font-size:14.5px}.table th{text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--text-2);padding:10px 12px;border-bottom:1px solid var(--border)}.table td{padding:12px;border-bottom:1px solid var(--border)}.table tr:hover td{background:var(--surface-alt)}.muted{color:var(--text-2)}.row-between{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap}.stack{display:flex;flex-direction:column;gap:18px}.inline{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.spinner{text-align:center;color:var(--text-2);padding:60px 0}