:root {
    --primary-color: #2c3e50;
    --secondary-color: #34495e;
    --accent-color: #3498db;
    --bg-color: #f8f9fa;
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(255, 255, 255, 0.5);
}

body {
    background-color: var(--bg-color);
    font-family: 'Inter', sans-serif;
    color: var(--primary-color);
    line-height: 1.6;
}

.hero-section {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 4rem 0;
    margin-bottom: 2rem;
    border-radius: 0 0 2rem 2rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.filter-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 1rem;
    padding: 1.5rem;
    margin-top: -3rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.table-container {
    background: white;
    border-radius: 1rem;
    padding: 1.5rem;
    margin-bottom: 3rem;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

.gem-img-container {
    width: 60px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-radius: 4px;
    background: #f1f3f5;
}

.gem-thumb {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: transform 0.3s;
}

.gem-thumb:hover {
    transform: scale(2.5);
    z-index: 100;
    position: relative;
}

.table thead th {
    background-color: #f1f3f5;
    color: var(--primary-color);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    border-bottom: 2px solid #dee2e6;
}

.table tbody tr:hover {
    background-color: #f8f9fa;
    transition: background-color 0.2s;
}

.btn-primary {
    background-color: var(--accent-color);
    border: none;
    padding: 0.6rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 500;
    transition: all 0.3s;
}

.btn-primary:hover {
    background-color: #2980b9;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
}

/* DataTables Customization */
.dataTables_wrapper .dataTables_filter {
    margin-bottom: 1rem;
}

.dataTables_wrapper .dataTables_filter input {
    border: 1px solid #dee2e6;
    border-radius: 0.5rem;
    padding: 0.4rem 1rem;
}

.dataTables_wrapper .dataTables_paginate .paginate_button.current {
    background: var(--accent-color) !important;
    color: white !important;
    border: none !important;
    border-radius: 0.5rem;
}