@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap";:root{--bg-primary:#0f1117;--bg-card:#1a1d27;--bg-card-hover:#1f2336;--bg-input:#12151f;--border:#2a2d3e;--border-focus:#4f6ef7;--accent-blue:#4f6ef7;--accent-blue-soft:#4f6ef726;--accent-green:#22c55e;--accent-green-soft:#22c55e26;--accent-red:#ef4444;--accent-red-soft:#ef44441f;--accent-yellow:#f59e0b;--accent-yellow-soft:#f59e0b26;--text-primary:#e8eaf6;--text-secondary:#8892b0;--text-muted:#4a5170;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;--shadow-card:0 4px 24px #0006;--shadow-glow:0 0 40px #4f6ef726}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px}body{background-color:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;min-height:100vh;font-family:Inter,-apple-system,sans-serif;line-height:1.6}#root{min-height:100vh}.app-layout{min-height:100vh;display:flex}.sidebar{background:var(--bg-card);border-right:1px solid var(--border);flex-direction:column;flex-shrink:0;width:240px;padding:24px 0;display:flex;position:fixed;top:0;bottom:0;left:0}.main-content{flex:1;max-width:900px;margin-left:240px;padding:40px}.sidebar-logo{border-bottom:1px solid var(--border);margin-bottom:16px;padding:0 24px 24px}.sidebar-logo-icon{background:var(--accent-blue);border-radius:var(--radius-sm);justify-content:center;align-items:center;width:40px;height:40px;margin-bottom:10px;font-size:20px;display:flex;box-shadow:0 0 16px #4f6ef766}.sidebar-logo h2{color:var(--text-primary);letter-spacing:-.01em;font-size:15px;font-weight:700}.sidebar-logo p{color:var(--text-muted);margin-top:2px;font-size:11px}.sidebar-nav{flex-direction:column;gap:2px;padding:0 12px;display:flex}.nav-item{border-radius:var(--radius-sm);color:var(--text-secondary);cursor:pointer;align-items:center;gap:10px;padding:10px 12px;font-size:13.5px;font-weight:500;text-decoration:none;transition:all .15s;display:flex}.nav-item:hover{background:var(--bg-card-hover);color:var(--text-primary)}.nav-item.active{background:var(--accent-blue-soft);color:var(--accent-blue)}.nav-item .nav-icon{text-align:center;width:20px;font-size:16px}.sidebar-footer{border-top:1px solid var(--border);margin-top:auto;padding:16px}.admin-badge{align-items:center;gap:10px;display:flex}.admin-avatar{background:linear-gradient(135deg, var(--accent-blue), #7c3aed);border-radius:50%;justify-content:center;align-items:center;width:32px;height:32px;font-size:13px;font-weight:700;display:flex}.admin-info p{font-size:12.5px;font-weight:600}.admin-info span{color:var(--text-muted);font-size:11px}.page-header{margin-bottom:32px}.page-header h1{color:var(--text-primary);letter-spacing:-.02em;font-size:26px;font-weight:800}.page-header p{color:var(--text-secondary);margin-top:6px;font-size:14px}.stats-row{grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:32px;display:grid}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:20px}.stat-card .stat-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;font-size:12px;font-weight:500}.stat-card .stat-value{color:var(--text-primary);margin-top:4px;font-size:28px;font-weight:800}.stat-card .stat-sub{color:var(--text-secondary);margin-top:2px;font-size:12px}.stat-accent-blue .stat-value{color:var(--accent-blue)}.stat-accent-green .stat-value{color:var(--accent-green)}.stat-accent-yellow .stat-value{color:var(--accent-yellow)}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:28px}.card+.card{margin-top:24px}.card-header{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.card-title{color:var(--text-primary);font-size:15px;font-weight:700}.card-subtitle{color:var(--text-secondary);margin-top:3px;font-size:12.5px}.form-label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.06em;margin-bottom:8px;font-size:12.5px;font-weight:600;display:block}.form-select{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);width:100%;color:var(--text-primary);cursor:pointer;outline:none;padding:10px 14px;font-family:Inter,sans-serif;font-size:14px;transition:border-color .15s}.form-select:focus{border-color:var(--border-focus)}.json-textarea{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-md);color:#a8daff;resize:vertical;outline:none;width:100%;min-height:380px;padding:16px;font-family:JetBrains Mono,Fira Code,monospace;font-size:13px;line-height:1.7;transition:border-color .2s,box-shadow .2s}.json-textarea:focus{border-color:var(--border-focus);box-shadow:var(--shadow-glow)}.json-textarea.error{border-color:var(--accent-red)}.json-textarea.success{border-color:var(--accent-green)}.btn-row{align-items:center;gap:12px;margin-top:16px;display:flex}.btn{border-radius:var(--radius-sm);cursor:pointer;border:none;outline:none;align-items:center;gap:8px;padding:11px 22px;font-family:Inter,sans-serif;font-size:14px;font-weight:600;transition:all .15s;display:inline-flex}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-primary{background:var(--accent-blue);color:#fff;box-shadow:0 4px 16px #4f6ef759}.btn-primary:hover:not(:disabled){background:#6178f8;transform:translateY(-1px);box-shadow:0 6px 20px #4f6ef780}.btn-primary:active:not(:disabled){transform:translateY(0)}.btn-secondary{color:var(--text-secondary);border:1px solid var(--border);background:0 0}.btn-secondary:hover:not(:disabled){background:var(--bg-card-hover);color:var(--text-primary);border-color:#3a3f5c}.btn-success{background:var(--accent-green);color:#fff;box-shadow:0 4px 16px #22c55e59}.btn-error{background:var(--accent-red);color:#fff;box-shadow:0 4px 16px #ef444459}.alert{border-radius:var(--radius-sm);border:1px solid;align-items:flex-start;gap:12px;margin-top:16px;padding:14px 16px;font-size:13.5px;animation:.25s slideIn;display:flex}.alert-error{background:var(--accent-red-soft);color:#fca5a5;border-color:#ef44444d}.alert-success{background:var(--accent-green-soft);color:#86efac;border-color:#22c55e4d}.alert-info{background:var(--accent-blue-soft);color:#a5b4fc;border-color:#4f6ef74d}.alert-warning{background:var(--accent-yellow-soft);color:#fcd34d;border-color:#f59e0b4d}.alert-icon{flex-shrink:0;margin-top:1px;font-size:16px}.alert-text ul{margin-top:6px;padding-left:16px}.alert-text li{margin-top:3px}@keyframes slideIn{0%{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}.preview-grid{grid-template-columns:1fr 1fr;gap:16px;margin-top:16px;display:grid}.preview-day{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-md);padding:16px}.preview-day h4{color:var(--accent-blue);align-items:center;gap:6px;margin-bottom:10px;font-size:13px;font-weight:700;display:flex}.preview-aula{border-bottom:1px solid var(--border);padding:8px 0}.preview-aula:last-child{border-bottom:none}.preview-aula .aula-header{align-items:center;gap:8px;font-size:12.5px;display:flex}.aula-time{background:var(--accent-blue-soft);color:var(--accent-blue);border-radius:4px;padding:2px 7px;font-family:JetBrains Mono,monospace;font-size:11px;font-weight:600}.aula-disc{font-size:13px;font-weight:600}.aula-recursos{flex-wrap:wrap;gap:4px;margin-top:4px;display:flex}.tag{border-radius:20px;padding:2px 8px;font-size:11px;font-weight:500;display:inline-block}.tag-resource{color:#fcd34d;background:#f59e0b26}.tag-homework{color:#86efac;background:#22c55e26}.history-list{flex-direction:column;gap:12px;display:flex}.history-item{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);justify-content:space-between;align-items:center;padding:14px 16px;transition:border-color .15s;display:flex}.history-item:hover{border-color:#3a3f5c}.history-info h4{font-size:13.5px;font-weight:600}.history-info span{color:var(--text-muted);font-size:12px}.history-badge{background:var(--accent-green-soft);color:var(--accent-green);border-radius:20px;padding:3px 10px;font-size:11px;font-weight:600}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#3a3f5c}