:root {
    color-scheme: light;
    font-family: "Segoe UI", Tahoma, sans-serif;
    --primary: #1f6feb;
    --primary-dark: #194fb2;
    --bg: #f6f8fa;
    --card-bg: #ffffff;
    --border: #dde3ea;
    --muted: #5d6b7e;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--bg);
    color: #0f172a;
    font-family: var(--font, "Inter", "Segoe UI");
    line-height: 1.6;
}

.container {
    width: min(1200px, 92vw);
    margin: 0 auto;
    padding: 2rem 0;
}

.site-header {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
}

.admin-nav {
    display: flex;
    gap: 1rem;
}

.site-header h1 {
    margin: 0;
}

.admin-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

.logout-link {
    color: #ef4444;
}

.auth-body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #dbeafe, #ede9fe);
}

.auth-wrapper {
    width: min(420px, 92vw);
}

.auth-card h1 {
    margin-top: 0;
    margin-bottom: 1rem;
}

.admin-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 1.5rem;
    box-shadow: 0 15px 40px rgba(15, 23, 42, 0.07);
}

.card h2 {
    margin-top: 0;
}

.admin-form {
    display: grid;
    gap: 1rem;
}

.admin-form label {
    font-weight: 600;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.admin-form input {
    padding: 0.65rem 0.75rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    font-size: 1rem;
}

.admin-form button {
    border: none;
    background: var(--primary);
    color: #fff;
    font-weight: 600;
    padding: 0.8rem;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s ease;
}

.admin-form button:hover {
    background: var(--primary-dark);
}

.cancel-edit {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-weight: 600;
    text-decoration: none;
    color: #ea580c;
}

.cancel-edit::before {
    content: '×';
    font-size: 1.2rem;
}

.alert {
    border-radius: 8px;
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
}

.alert-success {
    background: #dcfce7;
    color: #166534;
}

.trip-admin-card header {
    display: flex;
    justify-content: space-between;
    gap: 1.5rem;
    flex-wrap: wrap;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.75rem;
    margin-bottom: 1rem;
}

.trip-stats {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    font-weight: 600;
}

.muted {
    color: var(--muted);
    margin: 0.25rem 0 0 0;
}

.actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.toggle-btn,
.pdf-link {
    border: none;
    background: #e2e8f0;
    color: #0f172a;
    font-weight: 600;
    padding: 0.6rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    text-decoration: none;
}

.pdf-link {
    background: var(--primary);
    color: #fff;
}

.edit-link {
    background: #fef3c7;
    color: #92400e;
}

.capacity-form {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: flex-end;
    margin-bottom: 1rem;
}

.capacity-form label {
    display: flex;
    flex-direction: column;
    font-weight: 600;
    font-size: 0.95rem;
}

.capacity-form input {
    padding: 0.4rem 0.6rem;
    border-radius: 6px;
    border: 1px solid var(--border);
    font-size: 1rem;
    width: 140px;
}

.capacity-form button {
    border: none;
    background: #10b981;
    color: #fff;
    font-weight: 600;
    padding: 0.55rem 0.9rem;
    border-radius: 6px;
    cursor: pointer;
}

.capacity-form button:hover {
    background: #059669;
}

.inline-form {
    display: inline;
}

.delete-btn {
    border: none;
    background: #dc2626;
    color: #fff;
    font-weight: 600;
    padding: 0.4rem 0.75rem;
    border-radius: 6px;
    cursor: pointer;
}

.delete-btn:hover {
    background: #b91c1c;
}

.waitlist-row {
    background: #fff7ed;
}

.waitlist-row td {
    color: #78350f;
}

.registrations.hidden {
    display: none;
}

.table-wrapper {
    overflow-x: auto;
}

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

th,
td {
    border-bottom: 1px solid var(--border);
    padding: 0.65rem 0.5rem;
    text-align: left;
}

th {
    background: #f0f4f8;
    font-weight: 600;
}

@media (min-width: 700px) {
    .admin-form {
        grid-template-columns: repeat(2, 1fr);
    }

    .admin-form label:nth-child(3),
    .admin-form label:nth-child(4),
    .admin-form label:nth-child(5),
    .admin-form button {
        grid-column: span 2;
    }
}