:root{--primary:#6366f1;--primary-dark:#4f46e5;--danger:#ef4444;--success:#22c55e;--dark:#1e1e2e;--light:#f8fafc;--gray:#64748b;--border:#e2e8f0}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--light);color:var(--dark);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.6}.navbar{background:var(--dark);color:#fff;z-index:100;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;padding:15px 30px;display:flex;position:sticky;top:0}.navbar .brand{color:#fff;align-items:center;gap:10px;font-size:1.2em;font-weight:600;text-decoration:none;display:flex}.navbar .nav-links{flex-wrap:wrap;align-items:center;gap:20px;display:flex}.navbar .nav-links a{color:#fffc;text-decoration:none}.navbar .nav-links a:hover{color:#fff}.navbar .nav-user{color:#ffffff80;font-size:.85em}.container{max-width:1200px;margin:0 auto;padding:30px}.page-header{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:15px;margin-bottom:30px;display:flex}.page-header h1{margin-top:5px;font-size:2em}.card{border:1px solid var(--border);background:#fff;border-radius:12px;margin-bottom:20px;padding:24px}.grid-cards{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px;display:grid}.grid-cards .card{margin-bottom:0}.grid-cards .card h3{margin-bottom:8px}.btn{cursor:pointer;border:none;border-radius:8px;padding:10px 18px;font-size:.95em;font-weight:600;text-decoration:none;display:inline-block}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-danger{background:var(--danger);color:#fff}.btn-ghost{color:var(--dark);background:#f1f5f9}.chip{color:var(--gray);background:#f1f5f9;border-radius:20px;padding:4px 12px;font-size:.85em;text-decoration:none;display:inline-block}.chip.active,.chip:hover{background:var(--primary);color:#fff}.empty{text-align:center;color:var(--gray);padding:60px 20px;font-size:1.1em}.empty span{margin-bottom:10px;font-size:3em;display:block}.alert-success,.alert-error{border-radius:8px;margin-bottom:20px;padding:12px 18px;font-size:.95em}.alert-success{color:#15803d;background:#f0fdf4;border:1px solid #bbf7d0}.alert-error{color:#b91c1c;background:#fef2f2;border:1px solid #fecaca}.login-wrap{max-width:420px;margin:60px auto;padding:0 20px}.login-card{text-align:center;background:#fff;border-radius:12px;padding:40px;box-shadow:0 10px 40px #00000014}.login-card .logo{font-size:4em}.login-card h1{margin:10px 0 4px;font-size:1.5em}.login-card p{color:var(--gray);margin-bottom:24px}.login-card input{border:2px solid var(--border);border-radius:8px;width:100%;margin-bottom:12px;padding:12px 14px;font-size:1em}.login-card input:focus{border-color:var(--primary);outline:none}.module-card{padding:0;overflow:hidden}.module-card .module-head{border-bottom:1px solid var(--border);background:#f8fafc;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;padding:18px 24px;display:flex}.module-card .module-head h3{margin:0;font-size:1.05em}.module-card .module-body{padding:20px 24px}.sub-list{list-style:none}.sub-list li{border-bottom:1px dashed var(--border);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;padding:10px 0;display:flex}.sub-list li:last-child{border-bottom:none}.badge{border-radius:12px;padding:2px 10px;font-size:.78em;font-weight:600;display:inline-block}.badge-pending{color:#854d0e;background:#fef9c3}.badge-reviewed{color:#166534;background:#dcfce7}.badge-mine{color:#4338ca;background:#e0e7ff}.upload-form input[type=file]{margin-right:10px}.mini-form{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.mini-form input[type=text],.mini-form input[type=url]{border:2px solid var(--border);border-radius:8px;padding:8px 12px;font-size:.92em}table.data-table{border-collapse:collapse;width:100%;font-size:.92em}table.data-table th,table.data-table td{text-align:left;border-bottom:1px solid var(--border);padding:8px 10px}table.data-table th{color:var(--gray);text-transform:uppercase;font-size:.85em;font-weight:600}.form-group{margin-bottom:14px}.form-group label{color:var(--gray);margin-bottom:4px;font-size:.85em;font-weight:600;display:block}.form-group input,.form-group textarea,.form-group select{border:2px solid var(--border);border-radius:8px;width:100%;padding:10px 12px;font-family:inherit;font-size:.95em}.form-group textarea{resize:vertical;min-height:120px}.form-group input:focus,.form-group textarea:focus{border-color:var(--primary);outline:none}video{background:#000;border-radius:8px;width:100%}.muted{color:var(--gray);font-size:.9em}.mt{margin-top:16px}.flex-between{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;display:flex}