* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        }
        body {
            background: linear-gradient(145deg, #f0f5fe 0%, #e9f0fa 100%);
            min-height: 100vh;
            display: flex;
            justify-content: center;
            padding: 2rem 1.5rem;
        }
        .card {
            max-width: 1400px;
            width: 100%;
            background: rgba(255,255,255,0.75);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-radius: 3rem;
            box-shadow: 0 25px 60px -15px rgba(0,20,80,0.25), 0 8px 20px rgba(0,0,0,0.02);
            padding: 2.5rem 2.5rem 2.8rem;
            border: 1px solid rgba(255,255,255,0.6);
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, #13294b, #2f4b7c);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 0.3rem;
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }
        h1 span {
            background: #0f1f3d;
            color: white;
            font-size: 0.9rem;
            font-weight: 500;
            padding: 0.3rem 1rem;
            border-radius: 100px;
            -webkit-text-fill-color: white;
            background: #1e3a6b;
        }
        .sub {
            color: #38557c;
            font-size: 1.1rem;
            margin-bottom: 2.2rem;
            border-left: 5px solid #2e7eb0;
            padding-left: 1.3rem;
        }
        .search-section {
            background: white;
            border-radius: 3rem;
            padding: 1rem 1rem 1rem 2rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1rem;
            box-shadow: 0 10px 25px rgba(0,30,60,0.1);
            margin-bottom: 2.2rem;
            border: 1px solid #cbd6e8;
        }
        .search-section input {
            flex: 2 1 250px;
            border: none;
            padding: 1rem 0.5rem;
            font-size: 1.2rem;
            background: transparent;
            outline: none;
            color: #152b44;
            font-weight: 500;
        }
        .search-section input::placeholder {
            color: #9aafca;
            font-weight: 400;
        }
        .options {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1rem 1.8rem;
            margin-right: 1rem;
        }
        .options label {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: #1d3b5c;
            font-weight: 500;
            font-size: 0.95rem;
        }
        .options input[type="number"] {
            width: 90px;
            padding: 0.6rem 0.8rem;
            border-radius: 40px;
            border: 1px solid #b9cbdf;
            background: white;
            font-weight: 500;
            text-align: center;
        }
        .btn {
            border: none;
            background: #1c2f4f;
            color: white;
            padding: 1rem 2.2rem;
            border-radius: 60px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: 0.2s;
            box-shadow: 0 10px 18px -8px #1c2f4f;
            border: 1px solid #152844;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            white-space: nowrap;
        }
        .btn-outline {
            background: white;
            color: #1d3a60;
            box-shadow: 0 5px 15px rgba(0,0,0,0.03);
            border: 1px solid #b2c7e0;
        }
        .btn-outline:hover {
            background: #e9f0fa;
        }
        .btn-primary:hover {
            background: #243e66;
            transform: translateY(-2px);
        }
        .action-bar {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            margin: 2rem 0 1.5rem;
            gap: 1rem;
        }
        .stats {
            background: #e1eaf3;
            padding: 0.5rem 1.4rem;
            border-radius: 60px;
            font-weight: 500;
            color: #153257;
            font-size: 0.95rem;
        }
        .table-container {
            background: white;
            border-radius: 2rem;
            border: 1px solid #d3deed;
            overflow: auto;
            max-height: 420px;
            box-shadow: inset 0 4px 8px rgba(0,0,0,0.02);
        }
        table {
            width: 100%;
            border-collapse: collapse;
            min-width: 800px;
        }
        th {
            background: #eef3fc;
            color: #142b47;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 1.2rem 1rem;
            text-align: left;
            border-bottom: 2px solid #c8d6ea;
            position: sticky;
            top: 0;
            background: #eef3fc;
            z-index: 2;
        }
        td {
            padding: 1rem 1rem;
            border-bottom: 1px solid #e1e9f2;
            color: #1f3a5e;
        }
        .status-badge {
            display: inline-block;
            padding: 0.25rem 1rem;
            border-radius: 40px;
            font-weight: 500;
            font-size: 0.8rem;
        }
        .available { background: #dcfce7; color: #0b5a2e; }
        .registered { background: #ffe4e2; color: #a12b2b; }
        .footer-note {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 1.8rem;
            color: #34537b;
            font-size: 0.9rem;
        }
        .secure-badge {
            background: #d4e2f2;
            padding: 0.3rem 1.2rem;
            border-radius: 40px;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .warning-tip {
            background: #fff5e0;
            border-radius: 1.5rem;
            padding: 0.8rem 1.8rem;
            font-size: 0.9rem;
            color: #5e4a2b;
            border-left: 6px solid #f4b740;
            margin-top: 1.2rem;
        }
        .timer {
            font-family: monospace;
            background: #0f233d;
            color: #b3dcff;
            padding: 0.2rem 1rem;
            border-radius: 30px;
        }
        .pdf-warning {
            font-size:0.8rem; margin-left:0.5rem; opacity:0.75;
        }