/* Light Mode Override */
body.light {
    --bg: #f1f3f9;
    --surface: #ffffff;
    --surface2: #f4f6fb;
    --surface3: #e8ecf4;
    --border: #d5daea;
    --text: #1a1d2e;
    --text-muted: #6b7280;
    --accent: #6366f1;
    --accent-glow: rgba(99,102,241,0.12);
    --green: #16a34a;
    --amber: #d97706;
    --red: #dc2626;
    --blue: #2563eb;
}
body.light .topbar,
body.light .sidebar {
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
body.light input,
body.light select,
body.light textarea {
    color: var(--text);
}
body.light .ticket-table tbody tr:hover {
    background: #eef0f8;
}
body.light .nav-item:hover,
body.light .nav-item.active {
    background: #e8ecf4;
}
body.light .stat-card:hover {
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}
.theme-toggle {
    width: 34px;
    height: 34px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--surface2);
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    transition: all 0.15s;
    flex-shrink: 0;
}
.theme-toggle:hover {
    background: var(--surface3);
    color: var(--text);
    border-color: var(--accent);
}