:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;min-width:320px;min-height:100vh;background:#0f172a;color:#fff;font-family:Arial,Helvetica,sans-serif}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}.auth-layout{min-height:100vh;display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at 10% 20%,#1c2840,#0f172a 60%,#0b1220);padding:20px}.auth-card{width:min(420px,100%);background:#ffffff0a;border:1px solid rgba(255,255,255,.07);border-radius:16px;padding:28px;color:#e5e7eb;box-shadow:0 20px 60px #00000059;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.auth-card h2{margin:0 0 6px;font-size:26px;color:#f8fafc;text-align:center}.auth-subtitle{margin:0 0 18px;text-align:center;color:#cbd5e1;font-size:14px}.auth-form{display:flex;flex-direction:column;gap:12px}.auth-form input{padding:12px;border-radius:12px;border:1px solid rgba(255,255,255,.1);background:#ffffff0d;color:#e5e7eb;font-size:15px;transition:border-color .15s ease,box-shadow .15s ease}.auth-form input:focus{border-color:#6366f1;box-shadow:0 0 0 3px #6366f140;outline:none}.auth-form button{padding:14px;border:none;border-radius:12px;background:#6366f1;color:#fff;font-weight:700;cursor:pointer;margin-top:4px;transition:transform .15s ease,box-shadow .15s ease}.auth-form button:hover{transform:translateY(-1px);box-shadow:0 10px 30px #6366f159}.auth-form button:disabled{opacity:.65;cursor:not-allowed;box-shadow:none}.auth-footer{margin-top:16px;text-align:center;color:#cbd5e1}.auth-footer a{color:#a5b4fc;font-weight:700;text-decoration:none}.auth-footer a:hover{text-decoration:underline}.layout-container{display:flex;height:100vh;background:#0f172a}.sidebar{width:250px;background:#1e293b;padding:20px;display:flex;flex-direction:column;justify-content:space-between}.sidebar-title{color:#fff;font-size:20px;margin-bottom:20px}.sidebar-menu{display:flex;flex-direction:column;gap:12px}.menu-item{padding:10px 15px;border-radius:8px;background:#334155;color:#fff;text-decoration:none;transition:.2s}.menu-item:hover{background:#475569}.menu-item.active{background:#6366f1}.logout-btn{margin-top:20px;background:#ef4444;padding:12px;border-radius:8px;border:none;color:#fff;font-weight:700;cursor:pointer}.main-content{flex:1;padding:30px;overflow-y:auto;color:#fff}.form-wrapper{width:55%;margin:40px auto;background:#1e2636;padding:35px;border-radius:14px;box-shadow:0 0 15px #00000059}.form-title{text-align:center;margin-bottom:25px;font-size:32px;color:#fff}label{display:block;margin-top:15px;font-weight:700;color:#fff}input,textarea,select{width:100%;padding:12px;margin-top:5px;border-radius:8px;border:none;background:#2d3748;color:#fff;font-size:16px}textarea{height:110px}button{margin-top:25px;width:100%;padding:14px;border:none;border-radius:10px;background:#6366f1;color:#fff;font-size:18px;cursor:pointer;transition:.2s}button:hover{background:#4f46e5}.dashboard-wrapper{min-height:100vh;background:#0f172a;display:flex;justify-content:center;padding-top:40px;color:#fff}.dashboard-card{width:80%;max-width:1000px;background:#ffffff0d;padding:30px;border-radius:14px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.08);box-shadow:0 0 40px #0000004d}.dashboard-title{font-size:32px;font-weight:700;margin-bottom:25px}.dashboard-actions{display:flex;gap:15px;margin-bottom:25px}.btn{padding:10px 18px;border-radius:8px;border:none;cursor:pointer;font-weight:600;transition:.2s}.logout{background:#ef4444}.logout:hover{background:#dc2626}.create{background:#6366f1}.create:hover{background:#4f46e5}.roles{background:#14b8a6}.roles:hover{background:#0d9488}.dashboard-table{width:100%;border-collapse:collapse;margin-top:10px;font-size:15px}.dashboard-table th{text-align:left;padding:12px;background:#ffffff12}.dashboard-table td{padding:10px;border-bottom:1px solid rgba(255,255,255,.08)}.empty-msg{text-align:center;padding:20px;opacity:.7}.btn.small{padding:6px 10px;margin-right:6px;font-size:14px}.edit{background:#3b82f6}.edit:hover{background:#2563eb}.delete{background:#f43f5e}.delete:hover{background:#e11d48}.layout{display:flex;height:100vh;background:#0f1626;color:#fff}.sidebar{width:260px;background:#111a2b;padding:20px;display:flex;flex-direction:column;justify-content:space-between}.sidebar-title{font-size:22px;font-weight:700;margin-bottom:30px;color:#6d8cff}.menu-item{display:block;padding:12px;margin-bottom:12px;background:#1c2942;border-radius:8px;color:#fff;cursor:pointer;text-decoration:none;transition:.2s}.menu-item:hover{background:#6d8cff}.logout-btn{background:#e74c3c;padding:12px;border-radius:8px;cursor:pointer;border:none;color:#fff;font-weight:700;transition:.2s}.logout-btn:hover{background:#c0392b}.main{flex:1;padding:40px}.main-title{font-size:38px;font-weight:700}.section-title{margin-top:20px;font-size:20px;color:#aab8d3}.empty-text{margin-top:20px;color:#ccc}.courses-grid{margin-top:20px;display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}.course-card{background:#1b2436;padding:20px;border-radius:12px;box-shadow:0 0 10px #0000004d}.course-card h2{margin-bottom:10px}.btn-primary{display:inline-block;margin-top:10px;padding:10px 16px;background:#6d8cff;color:#fff;border-radius:8px;text-decoration:none}.btn-primary:hover{background:#869cff}.roles-card{padding:25px;background:#ffffff0d;border-radius:12px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.08);max-width:900px;margin:auto}.roles-table{width:100%;margin-top:20px;border-collapse:collapse}.roles-table th,.roles-table td{padding:12px;border-bottom:1px solid rgba(255,255,255,.1)}.roles-select{padding:6px;background:#1e293b;color:#fff;border-radius:6px}.assign-wrapper{display:flex;justify-content:center;align-items:flex-start;padding:30px 20px}.assign-card{width:min(520px,100%);background:#1f2937;padding:2rem;border-radius:18px;box-shadow:0 20px 60px #00000059;display:flex;flex-direction:column;gap:1rem;color:#e5e7eb}.assign-card h1{margin:0;font-size:32px}.assign-subtitle{margin:0;color:#9ca3af}.assign-card label{font-weight:700}.assign-card select{padding:.8rem;background:#0f172a;border:1px solid #374151;border-radius:10px;color:#fff}.assign-btn{padding:.9rem;margin-top:.5rem;border:none;background:#6366f1;color:#fff;border-radius:10px;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease}.assign-btn:hover{transform:translateY(-1px);box-shadow:0 10px 30px #6366f14d}.assign-btn:disabled{opacity:.6;cursor:not-allowed;box-shadow:none}.teacher-layout{min-height:100vh;background:radial-gradient(circle at 10% 20%,#243b55,#141824 35%,#0b1220);color:#e5e7eb;padding:40px 50px;font-family:Inter,Segoe UI,system-ui,sans-serif}.teacher-header{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:24px}.teacher-header h1{font-size:32px;margin:0;color:#f8fafc}.header-actions{display:flex;gap:10px}.btn{padding:10px 16px;border-radius:10px;border:1px solid transparent;cursor:pointer;font-weight:600;transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease}.btn.ghost{background:transparent;color:#e5e7eb;border-color:#2f3c54}.btn.danger{background:#ef4444;color:#fff;border-color:#ef4444}.btn.danger:hover{box-shadow:0 10px 30px #ef44444d}.courses{background:#ffffff08;border:1px solid rgba(255,255,255,.06);border-radius:16px;padding:20px;box-shadow:0 15px 45px #00000059}.section-heading{display:flex;align-items:center;gap:10px;margin-bottom:16px}.empty-state{text-align:center;padding:50px 20px;color:#94a3b8;border:1px dashed rgba(255,255,255,.12);border-radius:14px}.courses-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px}.course-card{background:linear-gradient(145deg,#ffffff0a,#ffffff05);border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:18px;display:flex;flex-direction:column;gap:14px;box-shadow:0 10px 35px #00000059}.course-header{display:flex;justify-content:space-between}.course-card h3{margin:6px 0 0;color:#fff}.course-code{margin:0;color:#9ca3af;font-size:14px}.course-actions{display:flex;flex-wrap:wrap;gap:10px}.chip{border:1px solid rgba(255,255,255,.14);background:#6366f11a;color:#e0e7ff;padding:10px 14px;border-radius:12px;font-weight:600;cursor:pointer;transition:border-color .15s ease,background .15s ease,transform .15s ease}@media(max-width:768px){.teacher-layout{padding:28px 20px}.teacher-header{flex-direction:column;align-items:flex-start}.header-actions{width:100%;justify-content:flex-start}}.teacher-course-page{min-height:100vh;background:radial-gradient(circle at 10% 20%,#243b55,#141824 35%,#0b1220);color:#e5e7eb;padding:32px 40px 60px;font-family:Inter,Segoe UI,system-ui,sans-serif}.course-header{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:18px}.eyebrow{letter-spacing:.08em;text-transform:uppercase;color:#8da2ff;font-size:12px;margin:0 0 6px}.course-header h1{font-size:28px;margin:0;color:#f8fafc}.subtitle{margin:6px 0 0;color:#cbd5e1}.header-actions{display:flex;gap:10px;align-items:center}.btn{padding:10px 16px;border-radius:10px;border:1px solid transparent;cursor:pointer;font-weight:600;background:#ffffff0d;color:#e5e7eb;transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease}.btn:hover{transform:translateY(-1px)}.btn.ghost{border-color:#2f3c54}.btn.primary{background:#6366f1;border-color:#6366f1;color:#fff}.btn.primary:hover{box-shadow:0 10px 30px #6366f14d}.card-panel,.list-section{background:#ffffff08;border:1px solid rgba(255,255,255,.06);border-radius:16px;padding:18px;box-shadow:0 15px 45px #00000059;margin-bottom:16px}.section-heading{display:flex;align-items:center;gap:10px;margin-bottom:12px}.section-heading h2{margin:0;font-size:20px;color:#f1f5f9}.badge{background:#6366f1;color:#fff;border-radius:999px;padding:6px 12px;font-weight:700;font-size:13px}.form-grid{display:flex;gap:10px;flex-wrap:wrap}.form-grid.column{flex-direction:column}.input{width:100%;border-radius:12px;border:1px solid rgba(255,255,255,.08);background:#ffffff0f;color:#e5e7eb;padding:12px 14px;font-size:15px}.textarea{min-height:120px;resize:vertical}.double{display:grid;grid-template-columns:repeat(2,minmax(200px,1fr));gap:14px}.field label{display:block;margin-bottom:6px;color:#cbd5e1}.list-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}.list-card{background:linear-gradient(145deg,#ffffff0a,#ffffff05);border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:14px;display:flex;flex-direction:column;gap:8px}.list-card.row{flex-direction:row;justify-content:space-between;align-items:center}.item-title{margin:0;font-weight:700;color:#fff}.body-text{margin:0;color:#dce2ec}.muted{color:#94a3b8}.empty-state{text-align:center;padding:32px 12px;color:#94a3b8;border:1px dashed rgba(255,255,255,.12);border-radius:14px}.chip{border:1px solid rgba(255,255,255,.14);background:#6366f114;color:#e0e7ff;padding:10px 14px;border-radius:12px;font-weight:600;cursor:pointer;transition:border-color .15s ease,background .15s ease,transform .15s ease}.chip:hover{border-color:#6366f1;background:#6366f12e;transform:translateY(-1px)}.chip.ghost{background:#ffffff0a}.chip.active{background:#6366f1;border-color:#6366f1;color:#fff}.chip.danger{background:#ef44441f;border-color:#ef444466;color:#fecdd3}.chip.link{text-decoration:none;display:inline-block}.nav-chips{display:flex;gap:8px}.card-surface{background:#ffffff05;border:1px solid rgba(255,255,255,.05);border-radius:14px;padding:12px}.helper{margin-top:6px}.delivery-row{display:flex;gap:12px;flex-wrap:wrap}.toggle-row{display:flex;justify-content:space-between;align-items:center}@media(max-width:768px){.teacher-course-page{padding:24px 18px 40px}.course-header,.form-grid{flex-direction:column}.double{grid-template-columns:1fr}.list-card.row{flex-direction:column;align-items:flex-start}}
