:root{--primary: #f97316;--primary-dark: #ea580c;--primary-light: #fb923c;--secondary: #6b7280;--accent: #f59e0b;--success: #22c55e;--warning: #fbbf24;--error: #ef4444;--bg-primary: #111111;--bg-secondary: #1c1c1c;--bg-card: rgba(28, 28, 28, .9);--bg-glass: rgba(255, 255, 255, .05);--text-primary: #f5f5f5;--text-secondary: #a3a3a3;--text-muted: #737373;--border-color: rgba(255, 255, 255, .1);--border-glow: rgba(249, 115, 22, .5);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);--shadow-md: 0 4px 6px rgba(0, 0, 0, .5);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .6);--shadow-glow: 0 0 20px rgba(249, 115, 22, .3);--space-xs: .25rem;--space-sm: .5rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2rem;--space-2xl: 3rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: 1rem;--radius-xl: 1.5rem;--radius-full: 9999px;--transition-fast: .15s ease;--transition-normal: .3s ease;--transition-slow: .5s ease}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Prompt,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh;line-height:1.6}body:before{content:"";position:fixed;top:0;left:0;width:100%;height:100%;background:radial-gradient(ellipse at 20% 0%,rgba(249,115,22,.12) 0%,transparent 50%),radial-gradient(ellipse at 80% 100%,rgba(107,114,128,.08) 0%,transparent 50%),radial-gradient(ellipse at 50% 50%,rgba(245,158,11,.05) 0%,transparent 50%);pointer-events:none;z-index:-1}#root{min-height:100vh;display:flex;flex-direction:column}h1{font-size:2.5rem;font-weight:700;background:linear-gradient(135deg,var(--primary-light),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:var(--space-md)}h2{font-size:1.75rem;font-weight:600;color:var(--text-primary);margin-bottom:var(--space-md)}h3{font-size:1.25rem;font-weight:500;color:var(--text-primary);margin-bottom:var(--space-sm)}p{color:var(--text-secondary)}a{color:var(--primary-light);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--primary)}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--space-lg)}.page{flex:1;padding:var(--space-xl) 0}.card{background:var(--bg-card);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--border-color);border-radius:var(--radius-xl);padding:var(--space-xl);box-shadow:var(--shadow-lg);transition:transform var(--transition-normal),box-shadow var(--transition-normal)}.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-glow)}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-lg);padding-bottom:var(--space-md);border-bottom:1px solid var(--border-color)}.card-title{font-size:1.25rem;font-weight:600}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-lg);font-family:inherit;font-size:.95rem;font-weight:500;border:none;border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);text-decoration:none}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;box-shadow:0 4px 15px #f9731666}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #f9731680}.btn-secondary{background:var(--bg-glass);color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover:not(:disabled){background:#ffffff1a;border-color:var(--primary-light)}.btn-success{background:linear-gradient(135deg,var(--success),#16a34a);color:#fff}.btn-danger{background:linear-gradient(135deg,var(--error),#dc2626);color:#fff}.btn-lg{padding:var(--space-md) var(--space-xl);font-size:1.1rem}.btn-icon{width:40px;height:40px;padding:0;border-radius:var(--radius-md)}.form-group{margin-bottom:var(--space-lg)}.form-label{display:block;font-size:.9rem;font-weight:500;color:var(--text-secondary);margin-bottom:var(--space-sm)}.form-input{width:100%;padding:var(--space-md);font-family:inherit;font-size:1rem;color:var(--text-primary);background:var(--bg-glass);border:1px solid var(--border-color);border-radius:var(--radius-md);outline:none;transition:all var(--transition-fast)}.form-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #f9731633}.form-input::placeholder{color:var(--text-muted)}.form-select{-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2394a3b8'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right .75rem center;background-size:1.25rem;padding-right:2.5rem}.navbar{background:#111111e6;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border-color);padding:var(--space-md) 0;position:sticky;top:0;z-index:100}.navbar-content{display:flex;align-items:center;justify-content:space-between}.navbar-brand{display:flex;align-items:center;gap:var(--space-sm);font-size:1.25rem;font-weight:600;color:var(--text-primary)}.navbar-brand svg{width:32px;height:32px;color:var(--primary-light)}.navbar-nav{display:flex;align-items:center;gap:var(--space-md)}.nav-link{display:flex;align-items:center;gap:var(--space-xs);padding:var(--space-sm) var(--space-md);color:var(--text-secondary);border-radius:var(--radius-md);transition:all var(--transition-fast)}.nav-link:hover,.nav-link.active{color:var(--text-primary);background:var(--bg-glass)}.nav-link.active{color:var(--primary-light)}.qr-container{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-xl);background:#fff;border-radius:var(--radius-xl);box-shadow:var(--shadow-lg)}.qr-code{padding:var(--space-lg);background:#fff;border-radius:var(--radius-lg)}.qr-timer{display:flex;align-items:center;justify-content:center;gap:var(--space-sm);margin-top:var(--space-lg);padding:var(--space-sm) var(--space-lg);background:var(--bg-card);border-radius:var(--radius-full);font-size:1.25rem;font-weight:600}.qr-timer.warning{color:var(--warning)}.qr-timer.danger{color:var(--error);animation:pulse 1s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.attendance-list{display:flex;flex-direction:column;gap:var(--space-sm)}.attendance-item{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-md);background:var(--bg-glass);border-radius:var(--radius-md);border:1px solid var(--border-color)}.attendance-avatar{width:40px;height:40px;border-radius:var(--radius-full);background:linear-gradient(135deg,var(--primary),var(--secondary));display:flex;align-items:center;justify-content:center;font-weight:600;color:#fff}.attendance-info{flex:1}.attendance-name{font-weight:500}.attendance-time{font-size:.85rem;color:var(--text-muted)}.attendance-badge{padding:var(--space-xs) var(--space-md);font-size:.8rem;font-weight:500;border-radius:var(--radius-full);background:#22c55e33;color:var(--success)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--space-lg);margin-bottom:var(--space-xl)}.stat-card{background:var(--bg-glass);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--space-lg);text-align:center}.stat-value{font-size:2.5rem;font-weight:700;background:linear-gradient(135deg,var(--primary-light),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.stat-label{font-size:.9rem;color:var(--text-muted);margin-top:var(--space-xs)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000b3;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;padding:var(--space-lg);z-index:1000;animation:fadeIn .2s ease}.modal{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-xl);width:100%;max-width:500px;max-height:90vh;overflow-y:auto;animation:slideUp .3s ease}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-lg);border-bottom:1px solid var(--border-color)}.modal-title{font-size:1.25rem;font-weight:600}.modal-close{background:none;border:none;color:var(--text-muted);font-size:1.5rem;cursor:pointer;padding:var(--space-xs);line-height:1}.modal-close:hover{color:var(--text-primary)}.modal-body{padding:var(--space-lg)}.modal-footer{display:flex;justify-content:flex-end;gap:var(--space-md);padding:var(--space-lg);border-top:1px solid var(--border-color)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.scanner-container{position:relative;width:100%;max-width:400px;margin:0 auto;border-radius:var(--radius-xl);overflow:hidden;background:#000}.scanner-overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;pointer-events:none}.scanner-frame{width:200px;height:200px;border:2px solid var(--primary-light);border-radius:var(--radius-lg);box-shadow:0 0 0 9999px #00000080;animation:scan 2s ease-in-out infinite}@keyframes scan{0%,to{border-color:var(--primary-light)}50%{border-color:var(--accent)}}.result-container{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-2xl);text-align:center}.result-icon{width:100px;height:100px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;font-size:3rem;margin-bottom:var(--space-lg)}.result-icon.success{background:#22c55e33;color:var(--success)}.result-icon.error{background:#ef444433;color:var(--error)}.result-title{font-size:1.5rem;font-weight:600;margin-bottom:var(--space-sm)}.result-message{color:var(--text-secondary)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-2xl);text-align:center;color:var(--text-muted)}.empty-state svg{width:80px;height:80px;margin-bottom:var(--space-lg);opacity:.5}.table{width:100%;border-collapse:collapse}.table th,.table td{padding:var(--space-md);text-align:left;border-bottom:1px solid var(--border-color)}.table th{font-weight:500;color:var(--text-muted);font-size:.85rem;text-transform:uppercase;letter-spacing:.05em}.table tbody tr{transition:background var(--transition-fast)}.table tbody tr:hover{background:var(--bg-glass)}.tabs{display:flex;gap:var(--space-sm);margin-bottom:var(--space-lg);border-bottom:1px solid var(--border-color);padding-bottom:var(--space-sm)}.tab{padding:var(--space-sm) var(--space-lg);background:none;border:none;color:var(--text-muted);font-family:inherit;font-size:.95rem;font-weight:500;cursor:pointer;border-radius:var(--radius-md) var(--radius-md) 0 0;transition:all var(--transition-fast)}.tab:hover{color:var(--text-primary);background:var(--bg-glass)}.tab.active{color:var(--primary-light);border-bottom:2px solid var(--primary)}@media (max-width: 768px){h1{font-size:1.75rem}.container{padding:0 var(--space-md)}.card{padding:var(--space-lg)}.stats-grid{grid-template-columns:repeat(2,1fr)}.navbar-nav{gap:var(--space-sm)}.nav-link span{display:none}.btn{padding:var(--space-sm) var(--space-md)}}@media (max-width: 480px){.stats-grid{grid-template-columns:1fr}.modal{margin:var(--space-md);max-height:calc(100vh - 2rem)}}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-sm{gap:var(--space-sm)}.gap-md{gap:var(--space-md)}.gap-lg{gap:var(--space-lg)}.text-center{text-align:center}.text-right{text-align:right}.text-muted{color:var(--text-muted)}.text-success{color:var(--success)}.text-error{color:var(--error)}.mt-md{margin-top:var(--space-md)}.mt-lg{margin-top:var(--space-lg)}.mb-md{margin-bottom:var(--space-md)}.mb-lg{margin-bottom:var(--space-lg)}.w-full{width:100%}.hidden{display:none}.slot-machine{padding:var(--space-xl) var(--space-2xl);background:var(--bg-glass);border:2px solid var(--border-color);border-radius:var(--radius-xl);margin:var(--space-lg) 0;transition:all var(--transition-normal)}.slot-machine.spinning{border-color:var(--primary);box-shadow:0 0 30px #6366f166}.slot-machine.winner{border-color:var(--success);box-shadow:0 0 40px #22c55e80;animation:winnerGlow 1s ease-in-out}.slot-display{font-size:2rem;font-weight:700;min-height:3rem;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--primary-light),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.slot-machine.spinning .slot-display{animation:slotSpin .1s linear infinite}@keyframes slotSpin{0%{transform:translateY(-2px)}50%{transform:translateY(2px)}to{transform:translateY(-2px)}}@keyframes winnerGlow{0%{transform:scale(1)}50%{transform:scale(1.02)}to{transform:scale(1)}}.winner-info{margin-top:var(--space-md);padding:var(--space-md);background:#22c55e1a;border-radius:var(--radius-md);animation:fadeIn .3s ease}.winner-id{font-size:1.1rem;font-weight:600;color:var(--success)}.winner-email{font-size:.85rem;color:var(--text-muted)}.modal-content{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-xl);width:100%;max-width:500px;max-height:90vh;overflow-y:auto;animation:slideUp .3s ease}.session-list{display:flex;flex-direction:column}.session-item{border-bottom:1px solid var(--border-color)}.session-item:last-child{border-bottom:none}.session-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-md) var(--space-lg);transition:background var(--transition-fast)}.session-header:hover{background:var(--bg-glass)}.session-number{width:40px;height:40px;background:linear-gradient(135deg,var(--primary),var(--secondary));border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;font-weight:600;font-size:.85rem}.session-date{font-weight:500}.session-meta{font-size:.85rem;color:var(--text-muted);margin-top:.1rem}.attendance-count{display:flex;align-items:baseline;gap:var(--space-xs)}.count-number{font-size:1.5rem;font-weight:700;color:var(--primary-light)}.count-label{font-size:.85rem;color:var(--text-muted)}.session-details{padding:var(--space-md) var(--space-lg);background:var(--bg-glass);animation:fadeIn .2s ease}.attendance-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:var(--space-sm)}.attendance-grid .attendance-item{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-md)}.attendance-index{width:24px;height:24px;background:var(--bg-glass);border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:500;color:var(--text-muted)}.attendance-grid .attendance-info{flex:1;min-width:0}.attendance-grid .attendance-name{font-size:.9rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.attendance-grid .attendance-id{font-size:.75rem;color:var(--text-muted)}.attendance-grid .attendance-time{font-size:.8rem}