:root{--bg-primary: #0f172a;--bg-secondary: #1e293b;--bg-card: #1e293b;--text-primary: #f1f5f9;--text-secondary: #94a3b8;--accent: #10b981;--accent-hover: #059669;--danger: #ef4444;--danger-hover: #dc2626;--warning: #f59e0b;--border: #334155;--radius: 8px;--max-w: 480px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased}.app-container{min-height:100vh;display:flex;flex-direction:column}.header{background:var(--bg-secondary);padding:12px 16px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border)}.header h1{font-size:18px;font-weight:600}.header-actions{display:flex;gap:8px}.content{flex:1;padding:16px;max-width:var(--max-w);margin:0 auto;width:100%}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-bottom:12px}.card-title{font-size:14px;color:var(--text-secondary);margin-bottom:4px}.card-value{font-size:20px;font-weight:600}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 20px;border:none;border-radius:var(--radius);font-size:14px;font-weight:500;cursor:pointer;transition:background .15s;text-decoration:none}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:var(--danger-hover)}.btn-ghost{background:transparent;color:var(--text-secondary);border:1px solid var(--border)}.btn-ghost:hover{background:var(--bg-secondary)}.btn-block{width:100%}.form-group{margin-bottom:14px}.form-label{display:block;font-size:13px;color:var(--text-secondary);margin-bottom:4px;font-weight:500}.form-input,.form-select{width:100%;padding:10px 12px;background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius);color:var(--text-primary);font-size:15px}.form-input:focus,.form-select:focus{outline:none;border-color:var(--accent)}.alert{padding:10px 14px;border-radius:var(--radius);font-size:13px;margin-bottom:12px}.alert-error{background:#ef444426;color:var(--danger);border:1px solid rgba(239,68,68,.3)}.alert-success{background:#10b98126;color:var(--accent);border:1px solid rgba(16,185,129,.3)}.badge{display:inline-block;padding:2px 8px;border-radius:12px;font-size:11px;font-weight:600;text-transform:uppercase}.badge-present{background:#10b98133;color:var(--accent)}.badge-late{background:#f59e0b33;color:var(--warning)}.badge-absent{background:#ef444433;color:var(--danger)}.badge-pending{background:#f59e0b33;color:var(--warning)}.badge-approved{background:#10b98133;color:var(--accent)}.badge-rejected{background:#ef444433;color:var(--danger)}.camera-container{position:relative;width:100%;max-width:360px;margin:0 auto;border-radius:var(--radius);overflow:hidden;background:#000}.camera-container video{width:100%;display:block}.camera-overlay{position:absolute;top:0;left:0;right:0;bottom:0;display:flex;align-items:center;justify-content:center}.table-wrapper{overflow-x:auto;-webkit-overflow-scrolling:touch}table{width:100%;border-collapse:collapse;font-size:13px}th,td{padding:8px 10px;text-align:left;border-bottom:1px solid var(--border)}th{font-weight:600;color:var(--text-secondary);font-size:12px;text-transform:uppercase}.spinner{width:32px;height:32px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-center{display:flex;align-items:center;justify-content:center;padding:40px}@media(min-width:768px){.content{max-width:900px}}