:root {
    --bg-color: #0f172a; /* Slate 900 */
    --text-color: #e2e8f0; /* Slate 200 */
    --accent-color: #38bdf8; /* Sky 400 */
    --card-bg: #1e293b; /* Slate 800 */
    --table-header-bg: #334155; /* Slate 700 */
    --table-row-hover: #1e293b;
    --border-color: #475569; /* Slate 600 */
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 2rem;
    line-height: 1.6;
}

h1 {
    color: var(--accent-color);
    font-size: 2rem;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

h2 {
    font-size: 1.25rem;
    color: #94a3b8; /* Slate 400 */
    margin-top: 0;
    margin-bottom: 2rem;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.card {
    background-color: var(--card-bg);
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    padding: 2rem;
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.95rem;
}

thead th {
    background-color: var(--table-header-bg);
    color: #f8fafc;
    padding: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    border-bottom: 2px solid var(--border-color);
}

tbody td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    color: #cbd5e1;
}

tbody tr:last-child td {
    border-bottom: none;
}

tbody tr:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.nav-links {
    margin-bottom: 2rem;
    display: flex;
    gap: 1rem;
}

.nav-link {
    color: var(--text-color);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    background-color: var(--card-bg);
    transition: all 0.2s ease;
    border: 1px solid var(--border-color);
}

.nav-link:hover, .nav-link.active {
    background-color: var(--accent-color);
    color: #0f172a;
    border-color: var(--accent-color);
    font-weight: 600;
}

.status-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    background-color: #10b981; /* Default Green */
    color: #064e3b;
}

.empty-state {
    text-align: center;
    padding: 3rem;
    color: #64748b;
    font-style: italic;
}