:root{--bg: #120709;--surface: #1b0b10;--surface2: #241016;--border: rgba(255,255,255,.1);--text: #f7f2ee;--muted: rgba(247,242,238,.7);--primary: #6d1020;--primary2: #8b1a2f;--accent: #7a4e2d;--accent2: #a06a3b;--success: #2ed573;--warning: #ffa502;--danger: #ff4757;--shadow: 0 20px 55px rgba(0,0,0,.35);--shadow-sm: 0 4px 12px rgba(0,0,0,.25);--radius: 14px;--radius-lg: 18px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background:radial-gradient(900px 500px at 10% 0%,rgba(109,16,32,.35),transparent 55%),radial-gradient(700px 420px at 90% 20%,rgba(122,78,45,.28),transparent 55%),var(--bg);color:var(--text);line-height:1.6;min-height:100vh}a{text-decoration:none;color:inherit}button{cursor:pointer;border:none;outline:none;font-family:inherit}input,select,textarea{width:100%;outline:none;border:1px solid rgba(255,255,255,.14);background:#ffffff0f;color:var(--text);padding:12px 16px;border-radius:var(--radius);font-size:14px;font-family:inherit;transition:border-color .2s,box-shadow .2s}input::placeholder,textarea::placeholder{color:#f7f2ee80}input:focus,select:focus,textarea:focus{border-color:#8b1a2fbf;box-shadow:0 0 0 3px #6d102038}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:#ffffff0a}::-webkit-scrollbar-thumb{background:#ffffff26;border-radius:10px}::-webkit-scrollbar-thumb:hover{background:#ffffff40}.spinner{width:44px;height:44px;border:4px solid rgba(255,255,255,.15);border-top-color:var(--primary2);border-radius:50%;animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.auth-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background:radial-gradient(900px 600px at 20% 10%,rgba(109,16,32,.45),transparent 55%),radial-gradient(800px 500px at 80% 30%,rgba(122,78,45,.28),transparent 55%),var(--bg)}.auth-box{width:100%;max-width:420px;background:#ffffff0f;border:1px solid var(--border);box-shadow:var(--shadow);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);padding:40px 32px;border-radius:var(--radius-lg);text-align:center}.auth-logo{margin-bottom:24px}.auth-logo img{height:150px;width:auto;object-fit:contain}.auth-subtitle{color:var(--muted);margin-bottom:28px;font-size:15px}.auth-contact{margin-top:28px;padding-top:20px;border-top:1px solid var(--border)}.auth-contact p{color:var(--muted);font-size:13px;margin-bottom:6px}.auth-contact a{color:var(--accent2);font-weight:600;transition:color .2s}.auth-contact a:hover{color:var(--text)}.form-group{margin-bottom:18px;text-align:left}.form-group label{display:block;margin-bottom:8px;font-weight:600;color:#f7f2eee0;font-size:14px}.btn{padding:12px 20px;border-radius:var(--radius);font-size:14px;font-weight:700;transition:all .2s ease;display:inline-flex;align-items:center;justify-content:center;gap:8px}.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary2));color:var(--text);width:100%;padding:14px;font-size:15px;border:1px solid rgba(255,255,255,.12)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px #6d102066}.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none}.btn-secondary{background:#ffffff14;color:var(--text);border:1px solid rgba(255,255,255,.12)}.btn-secondary:hover{background:#ffffff24}.btn-success{background:linear-gradient(135deg,var(--accent),var(--accent2));color:var(--text);border:1px solid rgba(255,255,255,.1)}.btn-danger{background:#ff47572e;color:#ffd8dc;border:1px solid rgba(255,71,87,.3)}.btn-small{padding:8px 14px;font-size:12px}.error-message{background:#ff47572e;border:1px solid rgba(255,71,87,.28);color:#ffd8dc;padding:12px 16px;border-radius:var(--radius);margin-bottom:18px;font-size:14px}.success-message{background:#2ed57324;border:1px solid rgba(46,213,115,.25);color:#c9ffe0;padding:12px 16px;border-radius:var(--radius);margin-bottom:18px;font-size:14px}.dashboard-layout{display:flex;min-height:100vh}.sidebar{width:260px;background:linear-gradient(180deg,var(--surface) 0%,#0d0507 100%);color:var(--text);padding:20px 0;position:fixed;height:100vh;overflow-y:auto;border-right:1px solid var(--border);z-index:100}.sidebar-header{padding:10px 20px 20px;text-align:center;border-bottom:1px solid rgba(255,255,255,.08);margin-bottom:16px}.sidebar-logo{margin-bottom:16px}.sidebar-logo img{height:120px;width:auto;object-fit:contain}.sidebar-welcome{color:var(--muted);font-size:13px}.sidebar-welcome span{color:var(--text);font-weight:700}.sidebar-menu{list-style:none}.sidebar-menu li{margin:4px 12px}.sidebar-menu a,.sidebar-menu button{display:flex;align-items:center;gap:12px;padding:11px 16px;color:#f7f2eeb3;border-radius:var(--radius);transition:all .2s ease;width:100%;background:none;font-size:14px;text-align:left;border:1px solid transparent}.sidebar-menu a:hover,.sidebar-menu button:hover{background:#ffffff0f;color:var(--text)}.sidebar-menu a.active{background:#6d102040;border-color:#6d102059;color:var(--text)}.sidebar-menu .icon{font-size:16px;width:22px;text-align:center}.sidebar-menu .icon{display:inline-flex;align-items:center;justify-content:center;width:22px;font-size:18px}.stat-icon{display:flex;align-items:center;justify-content:center}.stat-icon svg{width:22px;height:22px}.logout-btn{color:#ffd7dcd9!important;margin-top:12px}.logout-btn:hover{background:#ff47571f!important}.main-content{flex:1;margin-left:260px;padding:28px;min-height:100vh}.page-header{margin-bottom:24px}.page-header h1{font-size:26px;color:var(--text);font-weight:700;letter-spacing:.2px}.page-header p{color:var(--muted);margin-top:6px;font-size:14px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:18px;margin-bottom:24px}.stat-card{background:#ffffff0f;border:1px solid var(--border);border-radius:var(--radius-lg);padding:22px;display:flex;align-items:center;gap:18px;transition:transform .2s,border-color .2s}.stat-card:hover{transform:translateY(-4px);border-color:#6d102059}.stat-icon{width:54px;height:54px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:22px;background:#ffffff14;border:1px solid rgba(255,255,255,.1)}.stat-info h3{font-size:28px;color:var(--text);font-weight:800}.stat-info p{color:var(--muted);font-size:13px;margin-top:2px}.card{background:#ffffff0f;border:1px solid var(--border);border-radius:var(--radius-lg);margin-bottom:20px;overflow:hidden}.card-header{padding:18px 22px;border-bottom:1px solid rgba(255,255,255,.08);display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}.card-header h2{font-size:16px;color:var(--text);font-weight:700}.card-body{padding:22px}.progress-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;margin-bottom:24px}.progress-card{background:#ffffff0f;border:1px solid var(--border);border-radius:var(--radius-lg);padding:22px}.progress-card h3{font-size:15px;color:var(--text);margin-bottom:16px;font-weight:700}.progress-bar-container{background:#ffffff14;border-radius:12px;height:14px;overflow:hidden;margin-bottom:10px}.progress-bar{height:100%;border-radius:12px;transition:width .6s ease}.progress-bar.green{background:linear-gradient(90deg,#2ed573,#7bed9f)}.progress-bar.blue{background:linear-gradient(90deg,#3742fa,#70a1ff)}.progress-bar.orange{background:linear-gradient(90deg,#ff6348,#ffa502)}.progress-bar.maroon{background:linear-gradient(90deg,var(--primary),var(--primary2))}.progress-label{display:flex;justify-content:space-between;font-size:13px;color:var(--muted)}.table-container{overflow-x:auto}table{width:100%;border-collapse:collapse}table th,table td{padding:14px 16px;text-align:left;border-bottom:1px solid rgba(255,255,255,.08)}table th{background:#ffffff0a;color:var(--text);font-weight:700;font-size:12px;text-transform:uppercase;letter-spacing:.5px}table td{color:#f7f2eed9;font-size:14px}table tr:hover{background:#ffffff08}.status-badge{padding:6px 14px;border-radius:999px;font-size:12px;font-weight:700;display:inline-block}.status-active,.status-paid,.status-completed{background:#2ed57324;color:#c9ffe0;border:1px solid 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h2{font-size:18px;color:var(--text);font-weight:700}.modal-close{background:none;font-size:24px;color:var(--muted);transition:color .2s}.modal-close:hover{color:var(--text)}.modal-body{padding:22px}.modal-footer{padding:18px 22px;border-top:1px solid rgba(255,255,255,.08);display:flex;gap:12px;justify-content:flex-end;flex-wrap:wrap}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}.schedule-list{display:grid;gap:14px}.schedule-card{background:#ffffff0f;border:1px solid var(--border);border-radius:var(--radius);padding:18px;display:flex;align-items:center;gap:18px}.schedule-date{background:linear-gradient(135deg,var(--primary),var(--accent));color:var(--text);padding:14px;border-radius:12px;text-align:center;min-width:68px}.schedule-date .day{font-size:22px;font-weight:900}.schedule-date .month{font-size:11px;opacity:.85}.schedule-info{flex:1}.schedule-info h3{color:var(--text);font-size:15px;margin-bottom:4px}.schedule-info p{color:var(--muted);font-size:13px}.schedule-link{margin-left:auto}.schedule-link a{background:linear-gradient(135deg,var(--accent),var(--accent2));color:var(--text);padding:10px 18px;border-radius:var(--radius);font-weight:700;font-size:13px;display:inline-block}.course-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}.course-card{background:#ffffff0f;border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden}.course-card-header{background:linear-gradient(135deg,var(--primary),var(--accent));padding:20px}.course-card-header h3{color:var(--text);font-size:17px;font-weight:700}.course-card-body{padding:18px}.course-card-body p{color:var(--muted);font-size:13px;margin-bottom:14px}.course-meta{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:14px}.course-meta span{font-size:12px;color:#f7f2eed9;background:#ffffff0f;border:1px solid rgba(255,255,255,.08);padding:6px 12px;border-radius:999px}.attendance-card{background:#ffffff0f;border:1px solid var(--border);border-radius:var(--radius-lg);padding:22px;text-align:center}.attendance-circle{width:110px;height:110px;border-radius:50%;background:#ffffff0f;border:3px solid rgba(109,16,32,.4);display:flex;flex-direction:column;align-items:center;justify-content:center;margin:18px auto}.attendance-circle .percentage{font-size:28px;font-weight:900;color:var(--text)}.announcement-card{background:#ffffff0f;border:1px solid var(--border);border-left:4px solid var(--primary);border-radius:var(--radius);padding:18px;margin-bottom:14px}.announcement-card h3{color:var(--text);font-size:15px;margin-bottom:8px}.announcement-card p{color:#f7f2eecc;font-size:14px;line-height:1.5}.announcement-card .date{color:var(--muted);font-size:12px;margin-top:12px}.payment-card{background:#ffffff0f;border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;text-align:center}.payment-card .amount{font-size:32px;font-weight:900;color:var(--text);margin:14px 0}.contact-card{background:#ffffff0f;border:1px solid var(--border);border-radius:var(--radius-lg);padding:30px;text-align:center;max-width:500px}.contact-card .icon{font-size:48px;margin-bottom:16px}.contact-card h2{color:var(--text);margin-bottom:10px}.contact-card p{color:var(--muted);margin-bottom:20px}.contact-card a{color:var(--accent2);font-size:18px;font-weight:700;transition:color .2s}.contact-card a:hover{color:var(--text)}.empty-state{text-align:center;padding:50px 20px;color:var(--muted)}.empty-state .icon{font-size:52px;margin-bottom:14px;opacity:.6}.empty-state p{font-size:15px}.loading{display:flex;align-items:center;justify-content:center;padding:60px}@media(max-width:768px){.sidebar{width:100%;height:auto;position:relative}.main-content{margin-left:0;padding:20px 16px}.dashboard-layout{flex-direction:column}.form-row,.stats-grid,.course-grid,.progress-grid{grid-template-columns:1fr}.schedule-card{flex-direction:column;align-items:flex-start}.schedule-link{margin-left:0;margin-top:12px;width:100%}.schedule-link a{width:100%;text-align:center}.auth-box{padding:30px 24px}.auth-logo img{height:65px}}