:root {
    --bg: #0f172a;
    --bg-card: #1e293b;
    --bg-card-hover: #263348;
    --border: #334155;
    --text: #e2e8f0;
    --text-muted: #94a3b8;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #06b6d4;
    --radius: 0.75rem;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.3);
}

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

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

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Nav ─────────────────────────────────────────────────── */
.navbar {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar .brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
    white-space: nowrap;
}

.navbar .brand span { color: var(--primary); }

.navbar nav {
    display: flex;
    gap: 1rem;
}

.navbar nav a {
    color: var(--text-muted);
    padding: 0.4rem 0.75rem;
    border-radius: 0.5rem;
    font-size: 0.9rem;
    transition: all 0.15s;
}

.navbar nav a:hover,
.navbar nav a.active {
    color: var(--text);
    background: var(--bg);
    text-decoration: none;
}

/* ── Layout ──────────────────────────────────────────────── */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.5rem;
}

.page-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

/* ── Cards ───────────────────────────────────────────────── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    box-shadow: var(--shadow);
}

.card + .card { margin-top: 1rem; }

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

.card-title {
    font-size: 1rem;
    font-weight: 600;
}

/* ── Grid ────────────────────────────────────────────────── */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 1rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

/* ── Status bar ──────────────────────────────────────────── */
.status-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    padding: 1rem 1.25rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.status-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.status-dot.green { background: var(--success); }
.status-dot.red { background: var(--danger); }
.status-dot.yellow { background: var(--warning); }
.status-dot.gray { background: var(--text-muted); }

/* ── Cruise summary ──────────────────────────────────────── */
.cruise-summary {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    margin-bottom: 1.5rem;
}

.cruise-summary .detail {
    display: flex;
    flex-direction: column;
}

.cruise-summary .detail .label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.cruise-summary .detail .value {
    font-size: 1.1rem;
    font-weight: 600;
}

/* ── Package cards ───────────────────────────────────────── */
.pkg-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    transition: border-color 0.15s;
}

.pkg-card:hover {
    border-color: var(--primary);
}

.pkg-card .pkg-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.75rem;
}

.pkg-card .pkg-name {
    font-weight: 600;
    font-size: 1rem;
}

.pkg-card .pkg-category {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.price-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 0.25rem;
}

.price-current {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--success);
}

.price-original {
    font-size: 0.9rem;
    color: var(--text-muted);
    text-decoration: line-through;
}

.price-low {
    font-size: 0.85rem;
    color: var(--info);
}

.discount-badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.discount-badge.good { background: rgba(34,197,94,0.2); color: var(--success); }
.discount-badge.great { background: rgba(34,197,94,0.3); color: #4ade80; }

.badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 9999px;
    font-size: 0.7rem;
    font-weight: 600;
}

.badge-alert { background: rgba(245,158,11,0.2); color: var(--warning); }
.badge-success { background: rgba(34,197,94,0.2); color: var(--success); }
.badge-error { background: rgba(239,68,68,0.2); color: var(--danger); }
.badge-muted { background: rgba(148,163,184,0.2); color: var(--text-muted); }

.sparkline-container {
    height: 50px;
    margin-top: 0.75rem;
}

/* ── Forms ────────────────────────────────────────────────── */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 0.3rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.6rem 0.75rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    color: var(--text);
    font-size: 0.9rem;
    transition: border-color 0.15s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0;
}

.checkbox-group input[type="checkbox"] {
    width: 1.1rem;
    height: 1.1rem;
    accent-color: var(--primary);
}

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary);
    color: white;
}
.btn-primary:hover { background: var(--primary-hover); text-decoration: none; }

.btn-success {
    background: var(--success);
    color: white;
}
.btn-success:hover { opacity: 0.9; }

.btn-danger {
    background: var(--danger);
    color: white;
}
.btn-danger:hover { opacity: 0.9; }

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
}
.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    text-decoration: none;
}

.btn-sm {
    padding: 0.35rem 0.75rem;
    font-size: 0.8rem;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ── Tables ──────────────────────────────────────────────── */
.table-wrap {
    overflow-x: auto;
}

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

th, td {
    padding: 0.65rem 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 0.875rem;
}

th {
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
}

tr:hover td {
    background: var(--bg-card-hover);
}

.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }

/* ── Section headers ─────────────────────────────────────── */
.section-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}

/* ── Alert banner ────────────────────────────────────────── */
.alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.alert-info {
    background: rgba(59,130,246,0.15);
    border: 1px solid rgba(59,130,246,0.3);
    color: #93c5fd;
}

.alert-success {
    background: rgba(34,197,94,0.15);
    border: 1px solid rgba(34,197,94,0.3);
    color: #86efac;
}

.alert-warning {
    background: rgba(245,158,11,0.15);
    border: 1px solid rgba(245,158,11,0.3);
    color: #fcd34d;
}

/* ── Filter bar ──────────────────────────────────────────── */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: flex-end;
    margin-bottom: 1.5rem;
}

.filter-bar .form-group {
    margin-bottom: 0;
    min-width: 160px;
}

/* ── Setup banner ────────────────────────────────────────── */
.setup-banner {
    background: linear-gradient(135deg, rgba(59,130,246,0.2), rgba(139,92,246,0.2));
    border: 1px solid rgba(59,130,246,0.3);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.setup-banner h2 {
    margin-bottom: 0.5rem;
}

.setup-banner p {
    color: var(--text-muted);
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 0.5rem;
        align-items: flex-start;
    }
    .container { padding: 1rem; }
    .grid-2, .grid-3 { grid-template-columns: 1fr; }
    .cruise-summary { gap: 1rem; }
    .filter-bar { flex-direction: column; }
    .filter-bar .form-group { width: 100%; }
    .status-bar { flex-direction: column; gap: 0.75rem; }
}

/* ── Spinner ─────────────────────────────────────────────── */
.spinner {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    border: 2px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── No data state ───────────────────────────────────────── */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
}

.empty-state p {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}