:root {
    --bg: #f4f7fb;
    --card: #ffffff;
    --text: #162033;
    --muted: #64748b;
    --primary: #1f6feb;
    --primary-dark: #174ea6;
    --border: #dbe3ef;
    --success-bg: #e8f8ef;
    --success-text: #116534;
    --error-bg: #fff0f0;
    --error-text: #b42318;
    --booked-bg: #f1f5f9;
    --danger: #dc2626;
    --danger-dark: #991b1b;
    --danger-bg: #fee2e2;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: radial-gradient(circle at top left, #dbeafe 0, transparent 32%), var(--bg);
    color: var(--text);
}

.page {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
    padding: 48px 0;
}

.hero {
    text-align: center;
    margin-bottom: 28px;
}

.badge {
    display: inline-flex;
    padding: 8px 14px;
    border-radius: 999px;
    background: #e0ecff;
    color: var(--primary-dark);
    font-weight: 700;
    font-size: 14px;
    margin-bottom: 16px;
}

h1 {
    margin: 0;
    font-size: clamp(32px, 5vw, 58px);
    letter-spacing: -0.05em;
    line-height: 1.02;
}

h2 {
    margin: 0;
    font-size: clamp(24px, 3vw, 36px);
    letter-spacing: -0.04em;
}

.hero p {
    margin: 18px 0 0;
    color: var(--muted);
    font-size: 20px;
}

.booking-card,
.admin-card {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(219, 227, 239, 0.8);
    border-radius: 28px;
    padding: 24px;
    box-shadow: 0 24px 80px rgba(15, 23, 42, 0.09);
}

.admin-card {
    margin-top: 24px;
}

.admin-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 20px;
}

.admin-badge {
    background: var(--danger-bg);
    color: var(--danger-dark);
    margin-bottom: 12px;
}

.filters,
.fields {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

label span {
    display: block;
    margin-bottom: 8px;
    font-weight: 700;
}

select,
input,
textarea {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 14px 15px;
    font: inherit;
    color: var(--text);
    background: #fff;
    outline: none;
}

select:focus,
input:focus,
textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(31, 111, 235, 0.13);
}

.table-wrapper {
    overflow-x: auto;
    margin: 24px 0;
    border: 1px solid var(--border);
    border-radius: 22px;
}

.admin-table-wrapper {
    margin-bottom: 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 720px;
    background: #fff;
}

th,
td {
    padding: 16px;
    border-bottom: 1px solid var(--border);
    text-align: center;
    vertical-align: middle;
}

th {
    background: #f8fafc;
    color: #334155;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

tr:last-child td {
    border-bottom: 0;
}

.date-cell {
    text-align: left;
    font-weight: 800;
    white-space: nowrap;
}

.slot {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    cursor: pointer;
    padding: 10px 12px;
    border-radius: 14px;
    background: #eef5ff;
    color: var(--primary-dark);
    font-weight: 800;
}

.slot input {
    width: auto;
    accent-color: var(--primary);
}

.booked {
    display: inline-block;
    padding: 10px 12px;
    border-radius: 14px;
    background: var(--booked-bg);
    color: var(--muted);
    line-height: 1.35;
    font-weight: 800;
}

.booked strong {
    color: var(--text);
}

.empty {
    color: var(--muted);
    padding: 28px;
}

.admin-empty {
    margin: 0;
    text-align: center;
}

button {
    width: 100%;
    margin-top: 20px;
    border: 0;
    border-radius: 18px;
    padding: 16px 22px;
    background: linear-gradient(135deg, var(--primary), #4f46e5);
    color: #fff;
    font: inherit;
    font-weight: 900;
    cursor: pointer;
    box-shadow: 0 18px 40px rgba(31, 111, 235, 0.22);
}

button:hover {
    transform: translateY(-1px);
}

.danger-button,
.small-danger-button {
    background: linear-gradient(135deg, var(--danger), var(--danger-dark));
    box-shadow: 0 14px 30px rgba(220, 38, 38, 0.18);
}

.danger-button {
    width: auto;
    margin-top: 0;
    white-space: nowrap;
}

.small-danger-button {
    width: auto;
    margin-top: 0;
    padding: 10px 14px;
    border-radius: 14px;
    font-size: 14px;
}

.alert {
    margin-bottom: 18px;
    padding: 15px 18px;
    border-radius: 18px;
    font-weight: 800;
}

.alert.success {
    background: var(--success-bg);
    color: var(--success-text);
}

.alert.error {
    background: var(--error-bg);
    color: var(--error-text);
}

@media (max-width: 760px) {
    .page {
        padding: 28px 0;
    }

    .booking-card,
    .admin-card {
        padding: 16px;
        border-radius: 22px;
    }

    .filters,
    .fields {
        grid-template-columns: 1fr;
    }

    .admin-header {
        display: block;
    }

    .danger-button {
        width: 100%;
        margin-top: 16px;
    }
}