:root {
    --bg: #0f1117;
    --surface: #1a1d27;
    --surface-hover: #22263a;
    --border: #2a2e3f;
    --text: #e4e6ef;
    --text-muted: #8b8fa3;
    --accent: #6c72cb;
    --accent-hover: #8288e0;
    --success: #4ade80;
    --warning: #fbbf24;
    --danger: #f87171;
    --radius: 12px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

header {
    text-align: center;
    padding: 2rem 1rem 1rem;
    background: linear-gradient(135deg, #1a1d27 0%, #22263a 100%);
    border-bottom: 1px solid var(--border);
}

header h1 {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, #6c72cb, #cb69c1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 0.25rem;
}

main {
    max-width: 900px;
    margin: 2rem auto;
    padding: 0 1rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
}

.card h2 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.section-header h2 {
    margin-bottom: 0;
}

.form-row {
    margin-bottom: 0.75rem;
}

.form-row label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.form-row input,
.form-row select,
.form-row textarea {
    width: 100%;
    padding: 0.6rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg);
    color: var(--text);
    font-size: 0.9rem;
    font-family: inherit;
    transition: border-color 0.2s;
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.btn {
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), #cb69c1);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(108, 114, 203, 0.4);
}

.btn-sync {
    background: var(--surface-hover);
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-sync:hover {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

.btn-sm {
    padding: 0.3rem 0.6rem;
    font-size: 0.75rem;
}

.btn-danger {
    background: transparent;
    color: var(--danger);
    border: 1px solid var(--danger);
}

.btn-danger:hover {
    background: var(--danger);
    color: white;
}

table {
    width: 100%;
    border-collapse: collapse;
}

thead th {
    text-align: left;
    padding: 0.6rem 0.5rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

tbody tr {
    transition: background 0.15s;
}

tbody tr:hover {
    background: var(--surface-hover);
}

tbody td {
    padding: 0.6rem 0.5rem;
    font-size: 0.9rem;
    border-bottom: 1px solid rgba(42, 46, 63, 0.5);
}

.sync-badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.sync-badge.synced {
    background: rgba(74, 222, 128, 0.15);
    color: var(--success);
}

.sync-badge.unsynced {
    background: rgba(251, 191, 36, 0.15);
    color: var(--warning);
}

.sync-status {
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    font-size: 0.85rem;
    margin-bottom: 1rem;
    animation: fadeIn 0.3s;
}

.sync-status.success {
    background: rgba(74, 222, 128, 0.1);
    border: 1px solid rgba(74, 222, 128, 0.3);
    color: var(--success);
}

.sync-status.error {
    background: rgba(248, 113, 113, 0.1);
    border: 1px solid rgba(248, 113, 113, 0.3);
    color: var(--danger);
}

.actions {
    display: flex;
    gap: 0.3rem;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}