:root{--bg: #0f172a;--card: #ffffff;--primary: #2563eb;--primary-dark: #1d4ed8;--danger: #dc2626;--muted: #64748b;--border: #e2e8f0;--ok: #16a34a}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:#f1f5f9;color:#0f172a}.muted{color:var(--muted);font-size:.9rem}.login-wrap{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#1e3a8a,#2563eb);padding:20px}.login-card{width:100%;max-width:400px;background:#fff;border-radius:16px;padding:36px 32px;box-shadow:0 20px 50px #00000040;display:flex;flex-direction:column;gap:16px}.login-header{text-align:center;margin-bottom:6px}.login-logo{width:64px;height:64px;margin:0 auto 12px;display:grid;place-items:center;font-size:2rem;background:#eff6ff;border-radius:50%}.login-card h1{margin:0 0 4px;font-size:1.5rem}.login-field{display:flex;flex-direction:column;gap:6px}.login-field label{margin:0}.login-field input{padding:11px 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14px;border-radius:8px;margin:12px 0}.alert.info{background:#dbeafe;color:#1e40af}.progress-summary{display:flex;align-items:baseline;gap:12px;margin-bottom:12px}.dash-hero{background:#fff;border:1px solid var(--border);border-radius:14px;padding:20px 22px;margin-bottom:18px}.dash-hero-top{display:flex;justify-content:space-between;align-items:center}.dash-hero-top h2{margin:0}.dash-pct{font-size:1.6rem;font-weight:800;color:var(--primary)}.dash-bar{height:10px;background:#e2e8f0;border-radius:6px;overflow:hidden;margin:10px 0 6px}.dash-bar>div{height:100%;background:linear-gradient(90deg,#2563eb,#16a34a);transition:width .4s}.dash-toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px;flex-wrap:wrap}.dash-search{display:flex;align-items:center;gap:6px;background:#fff;border:1px solid var(--border);border-radius:20px;padding:6px 14px;flex:1;max-width:360px}.dash-search input{border:none;outline:none;padding:2px 0;width:100%}.clear-search{border:none;background:none;cursor:pointer;color:var(--muted);font-size:.9rem}.level-filter{display:flex;gap:8px;flex-wrap:wrap}.level-filter button{padding:7px 16px;border:1px solid var(--border);background:#fff;border-radius:20px;cursor:pointer;font-weight:600;font-size:.9rem}.level-filter button:hover{background:#f8fafc}.level-filter button.active{background:var(--primary);color:#fff;border-color:var(--primary)}.lesson-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px}.modulo-group{margin-bottom:28px}.modulo-title{display:flex;align-items:center;gap:8px;width:100%;font-size:1.05rem;font-weight:700;margin:0 0 12px;padding:0 0 8px;border:none;border-bottom:2px solid var(--border);background:none;cursor:pointer;text-align:left;color:inherit}.modulo-title:hover{color:var(--primary)}.chevron{display:inline-block;transition:transform .2s;font-size:.8rem;color:var(--muted)}.chevron.open{transform:rotate(90deg)}.modulo-count{margin-left:auto;font-size:.8rem;font-weight:700;background:#eff6ff;color:var(--primary);padding:2px 10px;border-radius:20px}.lesson-list{list-style:none;margin:0 0 4px;padding:0;display:flex;flex-direction:column;gap:6px}.lesson-row{display:flex;align-items:center;gap:12px;width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:10px;background:#fff;cursor:pointer;text-align:left;font:inherit;transition:border-color .1s,background .1s,transform 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640px){.lr-title{white-space:normal}.lr-num{display:none}}.lesson-card{text-align:left;background:#fff;border:1px solid var(--border);border-radius:12px;padding:14px;cursor:pointer;transition:transform .1s,box-shadow .1s}.lesson-card:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 4px 12px #00000014}.lesson-card.locked{opacity:.55;cursor:not-allowed;background:#f8fafc}.lesson-card.done{border-color:#bbf7d0;background:#f0fdf4}.lesson-head{display:flex;justify-content:space-between;font-weight:700}.lesson-num{color:var(--primary)}.lesson-title{margin:8px 0 6px;font-weight:600;font-size:.92rem;line-height:1.3}.lesson-meta{color:var(--muted);font-size:.8rem}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a80;display:grid;place-items:center;padding:20px;z-index:50}.modal{background:#fff;border-radius:14px;padding:24px;width:100%;max-width:480px}.modal.wide{max-width:760px}.modal.progress-modal{max-width:1000px}.progress-modal 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var(--border);border-radius:20px;padding:4px 12px;cursor:pointer;font-weight:700;font-size:.8rem}.status-toggle.on{background:#dcfce7;color:#166534;border-color:#bbf7d0}.status-toggle.off{background:#fee2e2;color:#991b1b;border-color:#fecaca}.row-actions{display:flex;gap:6px;flex-wrap:wrap;align-items:center}td.row-actions{display:table-cell;white-space:nowrap;vertical-align:middle}td.row-actions .btn{display:inline-block;margin-right:6px}td.row-actions .btn:last-child{margin-right:0}.search{max-width:320px}.card-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px;flex-wrap:wrap}.card-head h2{margin:0}.card-head-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.alunos-head{margin-bottom:16px}.alunos-head h2{margin:0 0 12px}.alunos-toolbar{display:flex;gap:10px;align-items:center}.search-box{display:flex;align-items:center;gap:8px;flex:1;background:#fff;border:1px solid var(--border);border-radius:8px;padding:7px 12px;font-size:.9rem}.search-box span{font-size:.95rem}.search-box input{border:none;outline:none;width:100%;padding:0;font-size:.9rem}.btn.primary.novo-aluno-btn{width:auto;flex-shrink:0;white-space:nowrap;padding:8px 16px}@media (max-width: 560px){.alunos-toolbar{flex-wrap:wrap}.search-box{flex-basis:100%}}.aluno-cell{display:flex;flex-direction:column;gap:2px}.aluno-nome{font-weight:600;display:flex;align-items:center;gap:6px}.aluno-email{font-size:.82rem;color:var(--muted)}.gerenciar-grid{display:flex;flex-direction:column;gap:16px;margin-top:8px}.gerenciar-item{display:flex;flex-direction:column;gap:6px}.gerenciar-item>label{margin:0}.row-inline{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.row-inline input{width:auto;flex:1;min-width:120px}.inline-check{display:flex;align-items:center;gap:8px;margin:12px 0 0}.inline-check input{width:auto}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}.modal.player{max-width:100%;width:100%;max-height:92vh;overflow-y:auto}.player-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}.player-head h3{margin:0 0 2px}.stage-menu{display:grid;gap:12px;margin-top:16px}.stage-card{display:flex;align-items:center;gap:12px;padding:16px;border:1px solid var(--border);border-radius:12px;background:#fff;cursor:pointer;font-size:1rem;font-weight:600;text-align:left}.stage-card:hover:not(:disabled){background:#f8fafc}.stage-card:disabled{opacity:.5;cursor:not-allowed}.stage-card.done{border-color:#bbf7d0;background:#f0fdf4}.stage-ico{font-size:1.5rem}.stage-card .tag{margin-left:auto}.stage-actions{display:flex;justify-content:space-between;gap:10px;position:sticky;bottom:0;z-index:2;background:#fff;padding:12px 0 2px;margin-top:12px;border-top:1px solid var(--border)}.video-frame{position:relative;width:100%;padding-top:56.25%;border-radius:10px;overflow:hidden;background:#000}.video-frame iframe{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;border:0}.video-stage{margin-top:12px}.video-layout{display:grid;grid-template-columns:1fr;gap:16px}.video-layout.split{grid-template-columns:3fr 2fr;align-items:start}.video-col{min-width:0}.video-el{width:100%;max-height:60vh;border-radius:10px;background:#000;display:block}.pdf-col{display:flex;flex-direction:column;border:1px solid var(--border);border-radius:10px;overflow:hidden}.pdf-col-head{display:flex;justify-content:space-between;align-items:center;padding:8px 10px;background:#f8fafc;border-bottom:1px solid var(--border);font-weight:600}.pdf-frame{width:100%;height:60vh;border:0}@media (max-width: 820px){.video-layout.split{grid-template-columns:1fr}.pdf-frame{height:50vh}}.exercise-stage{margin-top:12px}.exercise-top{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:8px}.exercise-progress{height:6px;background:#e2e8f0;border-radius:4px;overflow:hidden;margin-bottom:16px}.exercise-progress>div{height:100%;background:var(--primary);transition:width .3s}.q-card{border:1px solid var(--border);border-radius:12px;padding:20px;display:flex;flex-direction:column;gap:12px;align-items:center;text-align:center}.q-title{font-weight:700}.q-frase-alvo{font-size:1.5rem;font-weight:800;color:#036}.q-translate{font-style:italic}.q-controls{display:flex;gap:10px;align-items:center;flex-wrap:wrap;justify-content:center}.q-img{max-width:220px;border-radius:8px}.q-frase{font-size:1.15rem;display:flex;gap:8px;align-items:center;flex-wrap:wrap;justify-content:center}.q-frase input{width:auto;min-width:140px;display:inline-block}.q-alts{display:flex;flex-direction:column;gap:8px;width:100%;max-width:420px}.q-alts label{display:flex;align-items:center;gap:8px;padding:10px 12px;border:1px solid var(--border);border-radius:8px;cursor:pointer;font-weight:500;margin:0}.q-alts label.sel{border-color:var(--primary);background:#eff6ff}.q-alts input{width:auto}.q-assoc{display:flex;flex-direction:column;gap:10px;width:100%;max-width:560px;text-align:left}.assoc-row{display:flex;align-items:center;gap:10px}.assoc-prompt{flex:1;font-weight:500}.assoc-row select{width:auto;flex:1;min-width:140px}.assoc-ok{color:var(--ok)}.assoc-err{color:var(--danger);font-size:.85rem}.exercise-result{text-align:center;padding:24px;border-radius:12px;display:flex;flex-direction:column;align-items:center;gap:8px;border:2px solid var(--border)}.exercise-result.ok{border-color:#bbf7d0;background:#f0fdf4}.exercise-result.err{border-color:#fecaca;background:#fef2f2}.exercise-result h3{margin:4px 0}.result-emoji{font-size:3rem}.result-score{font-size:2.6rem;font-weight:800;color:var(--primary)}.result-actions{display:flex;gap:10px;margin-top:12px}.q-result{font-weight:700}.q-result.ok{color:var(--ok)}.q-result.err{color:var(--danger)}.q-actions{display:flex;gap:10px;margin-top:6px}