:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #8b5cf6;
    --accent-color: #06b6d4;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;
    --dark-color: #1e293b;
    --light-color: #f8fafc;
    --border-color: #e2e8f0;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --card-shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow-hover);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

/* Header Styling */
.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 3rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.header p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 2rem;
    position: relative;
    z-index: 1;
}

.header-nav {
    display: flex;
    gap: 1rem;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.header-nav a {
    color: white;
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--border-radius);
    transition: var(--transition);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    position: relative;
    overflow: hidden;
}

.header-nav a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.header-nav a:hover::before {
    left: 100%;
}

.header-nav a:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
    box-shadow: var(--card-shadow);
}

/* Stats Section */
.stats {
    display: flex;
    justify-content: space-around;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}

.stat-item {
    text-align: center;
    position: relative;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

/* Search Section */
.search-section {
    padding: 2rem;
}

.search-box {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.search-input {
    flex: 1;
    min-width: 300px;
    padding: 1rem 1.5rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1.1rem;
    font-weight: 500;
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    background: white;
}

.search-btn {
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: var(--card-shadow);
}

.search-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--card-shadow-hover);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

.benchmark-btn {
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--success-color), #059669);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: var(--card-shadow);
}

.benchmark-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--card-shadow-hover);
    background: linear-gradient(135deg, #059669, var(--success-color));
}

/* Search Info */
.search-info {
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-bottom: 2rem;
    border-left: 4px solid var(--info-color);
    box-shadow: var(--card-shadow);
}

/* Results */
.results {
    margin-top: 2rem;
}

.result-item {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-bottom: 1rem;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.result-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    transition: var(--transition);
}

.result-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--card-shadow-hover);
}

.result-item:hover::before {
    width: 8px;
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.result-id {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.9rem;
    background: rgba(99, 102, 241, 0.1);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
}

.result-score {
    background: linear-gradient(135deg, var(--info-color), #1d4ed8);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-size: 0.8rem;
    font-weight: 600;
    box-shadow: var(--card-shadow);
}

.result-description {
    line-height: 1.6;
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 500;
}

.highlight-info {
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-style: italic;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.highlight-info i {
    color: var(--warning-color);
}

/* Highlight Styling */
mark {
    background: linear-gradient(135deg, #fef3c7, #fde68a) !important;
    color: #92400e !important;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-weight: 600;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.result-description mark {
    background: linear-gradient(135deg, #fef3c7, #fde68a) !important;
    color: #92400e !important;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-weight: 600;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* Benchmark Results */
.benchmark-results {
    margin-top: 2rem;
}

.benchmark-results h3 {
    color: var(--text-primary);
    font-weight: 700;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.benchmark-results p {
    background: rgba(255, 255, 255, 0.8);
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
}

.benchmark-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--card-shadow);
}

.benchmark-table th,
.benchmark-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.benchmark-table th {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    font-weight: 600;
}

.benchmark-table tr:hover {
    background: rgba(99, 102, 241, 0.05);
}

/* Loading State */
.loading {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
}

.loading i {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* Error State */
.error {
    background: linear-gradient(135deg, #fef2f2, #fee2e2);
    border: 1px solid #fecaca;
    color: #dc2626;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    box-shadow: var(--card-shadow);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Success State */
.success {
    background: linear-gradient(135deg, #f0fdf4, #dcfce7);
    border: 1px solid #bbf7d0;
    color: #166534;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    box-shadow: var(--card-shadow);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Pagination Controls */
.pagination-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 2rem;
    gap: 0.25rem;
}

.pagination-btn {
    border: none;
    background: rgba(255, 255, 255, 0.8);
    color: var(--text-secondary);
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
    margin: 0 0.125rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pagination-btn:hover:not(:disabled) {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--card-shadow);
}

.pagination-btn:disabled {
    background: var(--text-muted);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.page-info {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.8);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    margin: 0 0.5rem;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.result-item {
    animation: fadeInUp 0.6s ease-out;
}

.result-item:nth-child(1) { animation-delay: 0.1s; }
.result-item:nth-child(2) { animation-delay: 0.2s; }
.result-item:nth-child(3) { animation-delay: 0.3s; }
.result-item:nth-child(4) { animation-delay: 0.4s; }
.result-item:nth-child(5) { animation-delay: 0.5s; }

/* Responsive Design */
@media (max-width: 768px) {
    .header h1 {
        font-size: 2rem;
    }

    .header-nav {
        flex-direction: column;
        gap: 0.5rem;
    }

    .header-nav a {
        width: 100%;
        justify-content: center;
    }

    .stats {
        flex-direction: column;
        gap: 1rem;
    }

    .search-box {
        flex-direction: column;
    }

    .search-input {
        min-width: auto;
    }

    .result-header {
        flex-direction: column;
        gap: 0.5rem;
        align-items: flex-start;
    }

                                          .pagination-controls {
                     flex-direction: column;
                     gap: 0.5rem;
                 }

                 .pagination-btn {
                     width: 100%;
                     justify-content: center;
                 }

                 .page-info {
                     width: 100%;
                     text-align: center;
                 }
}

@media (max-width: 576px) {
    .container {
        margin: 0;
        border-radius: 0;
    }

    .header {
        padding: 2rem 1rem;
    }

    .search-section {
        padding: 1rem;
    }

    .result-item {
        padding: 1rem;
    }

    .benchmark-table {
        font-size: 0.9rem;
    }

    .benchmark-table th,
    .benchmark-table td {
        padding: 0.75rem;
    }
}

/* Focus styles for accessibility */
.search-input:focus,
.search-btn:focus,
.benchmark-btn:focus,
.pagination-btn:focus,
.header-nav a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}