:root {
    --primary-start: #0ea5e9; /* teal-500 */
    --primary-end: #6366f1;   /* indigo-500 */
    --bg-light: #f9fafb;
    --bg-dark: #1e1e2d;
    --text-light: #1f2937;
    --text-dark: #f9fafb;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-light);
    color: var(--text-light);
    transition: background 0.3s, color 0.3s;
}

.dark body {
    background: var(--bg-dark);
    color: var(--text-dark);
}

.button {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, var(--primary-start), var(--primary-end));
    color: #fff;
    border-radius: 0.5rem;
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s;
}
.button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.card {
    background: rgba(255,255,255,0.8);
    backdrop-filter: blur(10px);
    border-radius: 0.75rem;
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.dark .card {
    background: rgba(30,30,45,0.85);
}

.table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}
.table th, .table td {
    padding: 0.75rem;
    border: 1px solid #e5e7eb;
}
.table th {
    background: linear-gradient(135deg, var(--primary-start), var(--primary-end));
    color: #fff;
    text-align: left;
}
.table tr:nth-child(even) {
    background: #f3f4f6;
}
.dark .table tr:nth-child(even) {
    background: #2d2d3a;
}