:root {
    --color-foundation: #F5F2EB;
    --color-surface: #FFFFFF;
    --color-marine: #0B1F2A;
    --color-ink: #1A2B35;
    --color-grey: #6C7A89;
    --color-grey-light: #9BA5B0;
    --color-border: #E2DED6;
    --color-border-light: #EBE8E2;
    --color-accent: #57A8E6;
    --color-accent-hover: #4A95CC;
    --color-success: #377298;
    --color-success-bg: #F0F7FB;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --shadow-sm: 0 1px 2px rgba(11,31,42,0.04);
    --shadow-md: 0 2px 8px rgba(11,31,42,0.06);
    --radius-sm: 4px;
    --radius-md: 6px;
    --transition-fast: 120ms ease-out;
    --transition-base: 200ms ease-out;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-font-smoothing: antialiased; }
body {
    font-family: var(--font-family);
    font-size: 0.9375rem;
    color: var(--color-ink);
    background: var(--color-foundation);
    min-height: 100vh;
    line-height: 1.5;
}
.page { max-width: 960px; margin: 0 auto; padding: 2rem 1.5rem; }

/* Main layout content wrapper */
main { display: block; width: 100%; }

/* Header */
.header {
    display: flex; justify-content: space-between; align-items: flex-start;
    padding-bottom: 1.5rem; margin-bottom: 2rem;
    border-bottom: 1px solid var(--color-border);
}
.header__brand {
    display: flex; align-items: center; gap: 0.75rem;
}
.header__logo {
    width: 36px; height: 36px; flex-shrink: 0;
}
.header h1 {
    font-size: 1.5rem; font-weight: 700; color: var(--color-marine);
    letter-spacing: -0.02em;
}
.header__sub {
    font-size: 0.8125rem; color: var(--color-grey); font-weight: 500;
    text-transform: uppercase; letter-spacing: 0.08em; margin-top: 0.25rem;
}
.header__info-btn {
    display: flex; align-items: center; justify-content: center;
    width: 28px; height: 28px; padding: 0;
    background: none; border: 1px solid var(--color-border);
    border-radius: 50%; cursor: pointer;
    transition: all var(--transition-fast); flex-shrink: 0;
    opacity: 0.6;
}
.header__info-btn img { width: 16px; height: 16px; }
.header__info-btn:hover { opacity: 1; border-color: var(--color-grey-light); background: var(--color-foundation); }
.header__meta { text-align: right; display: flex; flex-direction: column; gap: 0.5rem; }
.header__meta-label {
    font-size: 0.6875rem; color: var(--color-grey-light);
    text-transform: uppercase; letter-spacing: 0.06em;
}
.header__meta-value {
    font-size: 0.8125rem; color: var(--color-marine); font-weight: 600;
}
.header__meta-value[title] { cursor: help; }

/* Refresh error banner */
.refresh-error {
    font-size: 0.8125rem; color: #92400E; background: #FFFBEB;
    border: 1px solid #FDE68A; border-radius: var(--radius-sm);
    padding: 0.625rem 1rem; margin-bottom: 1.5rem; text-align: center;
}

/* KPI */
.kpi {
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius-md); padding: 1.5rem; margin-bottom: 1.5rem;
    position: relative;
}
.kpi::before {
    content: ''; position: absolute; left: 0; top: 1rem; bottom: 1rem;
    width: 3px; background: var(--color-accent); border-radius: 2px;
}
.kpi__label {
    font-size: 0.6875rem; font-weight: 600; color: var(--color-grey);
    text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 0.5rem;
}
.kpi__value {
    font-size: 2rem; font-weight: 700; color: var(--color-marine);
    line-height: 1.1; font-variant-numeric: tabular-nums;
}
.kpi__unit { font-size: 0.8125rem; font-weight: 500; color: var(--color-grey); margin-left: 0.25rem; }
.kpi__delta { font-size: 0.6875rem; color: var(--color-grey-light); margin-top: 0.5rem; }
.kpi__note { font-size: 0.6875rem; color: var(--color-grey-light); margin-top: 0.25rem; font-style: italic; }

/* Filters */
.filter-panel {
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius-md); padding: 1rem 1.5rem; margin-bottom: 1.5rem;
}
.filter-panel__title {
    font-size: 0.8125rem; font-weight: 600; color: var(--color-marine);
    margin-bottom: 0.75rem; display: flex; align-items: center; gap: 0.5rem;
}
.filter-panel__title svg { width: 16px; height: 16px; color: var(--color-grey); }
.filter-row { display: flex; gap: 1rem; flex-wrap: wrap; }
.filter-row + .filter-row { margin-top: 0.75rem; }
.filter-group { display: flex; flex-direction: column; gap: 0.375rem; min-width: 160px; flex: 1; }
.filter-group__label {
    font-size: 0.6875rem; font-weight: 600; color: var(--color-grey);
    text-transform: uppercase; letter-spacing: 0.06em;
}
.filter-group select {
    width: 100%; height: 40px; padding: 0 0.75rem;
    font-family: inherit; font-size: 0.8125rem; color: var(--color-ink);
    background: var(--color-foundation); border: 1px solid var(--color-border);
    border-radius: var(--radius-sm); cursor: pointer;
    transition: border-color var(--transition-fast);
}
.filter-group select:hover { border-color: var(--color-grey-light); }
.filter-group select:focus {
    outline: none; border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(87,168,230,0.12);
}
.filter-warning {
    font-size: 0.75rem; color: #B91C1C; margin-top: 0.75rem;
    padding: 0.5rem 0.75rem; background: #FEF2F2; border: 1px solid #FECACA;
    border-radius: var(--radius-sm); text-align: center;
}
.filter-notify-row {
    margin-top: 1rem; padding-top: 0.75rem;
    border-top: 1px solid var(--color-border-light);
    text-align: center;
}
.filter-notify-btn {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.625rem 1.5rem; font-family: inherit; font-size: 0.8125rem;
    font-weight: 600; color: #FFFFFF; background: var(--color-accent);
    border: none; border-radius: 100px;
    cursor: pointer; transition: all var(--transition-fast);
}
.filter-notify-btn svg { width: 16px; height: 16px; }
.filter-notify-btn:hover {
    background: var(--color-accent-hover);
    transform: translateY(-1px); box-shadow: var(--shadow-md);
}

/* Modal */
.modal-overlay {
    position: fixed; inset: 0; z-index: 1000;
    background: rgba(11,31,42,0.5); backdrop-filter: blur(2px);
    display: flex; align-items: center; justify-content: center;
    padding: 1rem;
}
.modal {
    background: var(--color-surface); border-radius: var(--radius-md);
    box-shadow: 0 8px 32px rgba(11,31,42,0.18);
    width: 100%; max-width: 480px; max-height: 90vh;
    overflow-y: auto; padding: 1.5rem;
}
.modal__header {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 0.5rem;
}
.modal__title {
    display: flex; align-items: center; gap: 0.5rem;
    font-size: 1.125rem; font-weight: 700; color: var(--color-marine);
}
.modal__title svg { width: 22px; height: 22px; color: var(--color-accent); }
.modal__close {
    width: 32px; height: 32px; display: flex; align-items: center;
    justify-content: center; font-size: 1.5rem; line-height: 1;
    color: var(--color-grey); background: none; border: none;
    border-radius: var(--radius-sm); cursor: pointer;
    transition: all var(--transition-fast);
}
.modal__close:hover { color: var(--color-marine); background: var(--color-foundation); }
.modal__desc {
    font-size: 0.8125rem; color: var(--color-grey); margin-bottom: 0.75rem;
}
.modal__filter-summary {
    display: flex; flex-wrap: wrap; gap: 0.375rem; margin-bottom: 1.25rem;
}
.modal__filter-tag {
    display: inline-flex; align-items: center;
    padding: 0.25rem 0.625rem; font-size: 0.6875rem; font-weight: 600;
    color: var(--color-success); background: var(--color-success-bg);
    border-radius: 100px; letter-spacing: 0.02em;
}

/* About modal content */
.modal--about { max-width: 420px; }
.about-content { font-size: 0.8125rem; color: var(--color-ink); line-height: 1.6; }
.about-content p { margin-bottom: 0.75rem; }
.about-content ul {
    list-style: none; padding: 0; margin: 0 0 1rem 0;
    display: flex; flex-direction: column; gap: 0.5rem;
}
.about-content li {
    padding-left: 1.25rem; position: relative; color: var(--color-grey);
}
.about-content li::before {
    content: ''; position: absolute; left: 0; top: 0.5em;
    width: 6px; height: 6px; background: var(--color-accent);
    border-radius: 50%;
}
.about-contact {
    padding-top: 0.75rem; border-top: 1px solid var(--color-border-light);
    display: flex; flex-direction: column; gap: 0.25rem;
    font-size: 0.8125rem;
}
.about-contact strong { color: var(--color-marine); font-size: 0.75rem; }
.about-contact a {
    color: var(--color-accent); text-decoration: none; font-weight: 600;
}
.about-contact a:hover { text-decoration: underline; }

/* Facility cards */
.facility-card {
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius-md); overflow: hidden; margin-bottom: 1.25rem;
    box-shadow: var(--shadow-sm);
}
.facility-card[data-hidden="true"] { display: none; }
.facility-card__header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 1rem 1.5rem; background: var(--color-marine);
    border-bottom: 1px solid var(--color-border-light);
}
.facility-card__name {
    font-size: 0.9375rem; font-weight: 700; color: #FFFFFF;
    letter-spacing: -0.01em;
}
.facility-card__count {
    font-size: 0.8125rem; color: rgba(255,255,255,0.6);
}
.facility-card__count strong { color: #FFFFFF; font-weight: 700; }

/* Slot table */
.slot-table { width: 100%; border-collapse: collapse; table-layout: fixed; }
.slot-table thead { background: var(--color-foundation); border-bottom: 2px solid var(--color-border); }
.slot-table th {
    padding: 0.625rem 1rem; text-align: left;
    font-size: 0.6875rem; font-weight: 700; color: var(--color-grey);
    text-transform: uppercase; letter-spacing: 0.06em; white-space: nowrap;
}
.slot-table tbody tr {
    border-bottom: 1px solid var(--color-border-light);
    transition: background var(--transition-fast);
}
.slot-table tbody tr:nth-child(even) { background: rgba(245,242,235,0.5); }
.slot-table tbody tr:last-child { border-bottom: none; }
.slot-table tbody tr:hover { background: rgba(87,168,230,0.06); }
.slot-table tbody tr[data-hidden="true"] { display: none; }
.slot-date-header { display: none; } /* shown only on mobile via media query */
.slot-table td {
    padding: 0.75rem 1rem; font-size: 0.8125rem; color: var(--color-ink);
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.slot-table td:last-child { text-align: right; }
.slot-court { font-weight: 600; color: var(--color-marine); }
.slot-time { font-variant-numeric: tabular-nums; font-weight: 500; }
.slot-duration {
    display: inline-flex; align-items: center;
    padding: 0.2rem 0.625rem; font-size: 0.6875rem; font-weight: 600;
    color: var(--color-success); background: var(--color-success-bg);
    border-radius: 100px; letter-spacing: 0.02em;
}
.slot-type {
    display: inline-flex; align-items: center;
    padding: 0.2rem 0.625rem; font-size: 0.6875rem; font-weight: 600;
    border-radius: 100px; letter-spacing: 0.02em;
}
.slot-type--singel { color: #7C5E10; background: #FEF9E7; }
.slot-type--dobbel { color: #1A5276; background: #EBF5FB; }
.slot-price {
    font-variant-numeric: tabular-nums; font-weight: 600;
    color: var(--color-marine); white-space: nowrap;
}
.slot-link {
    display: inline-flex; align-items: center; gap: 0.25rem;
    color: #FFFFFF; background: var(--color-accent); text-decoration: none;
    font-weight: 600; font-size: 0.75rem; padding: 0.375rem 0.875rem;
    border-radius: 100px; transition: background var(--transition-fast);
}
.slot-link::after { content: ' \2192'; }
.slot-link:hover { background: var(--color-accent-hover); }

/* Provider styling */
.provider-badge {
    display: inline-flex; margin-left: 0.5rem;
    padding: 0.15rem 0.4rem; font-size: 0.6rem; font-weight: 600;
    border-radius: 4px; border: 1px solid rgba(255,255,255,0.3);
    text-transform: uppercase; letter-spacing: 0.04em;
    background: rgba(0,0,0,0.15); color: #FFF;
}
.provider-badge--matchi { border-color: #57A8E6; color: #EBF5FB; }
.provider-badge--playtomic { border-color: #00E5FF; color: #E0F7FA; }
.provider-badge--padelmates { border-color: #FACC15; color: #FEF9E7; }

/* Facility unavailable state */
.facility-card__unavailable {
    padding: 1.5rem; text-align: center;
    font-size: 0.8125rem; color: var(--color-grey);
}

/* Loading state */
.loading-state {
    text-align: center; padding: 4rem 1.5rem; color: var(--color-grey);
}
.loading-state__spinner {
    width: 32px; height: 32px; margin: 0 auto 1rem;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading-state__text { font-size: 0.875rem; }

/* Empty state */
.empty-state {
    padding: 3rem 1.5rem; text-align: center; color: var(--color-grey);
}
.empty-state__icon { font-size: 48px; margin-bottom: 1rem; opacity: 0.3; }
.empty-state__text { font-size: 0.9375rem; }

/* Footer */
.footer {
    margin-top: 2.5rem; padding: 1.5rem 0;
    border-top: 1px solid var(--color-border);
    text-align: center; font-size: 0.75rem; color: var(--color-grey-light);
}
.footer a {
    color: var(--color-accent); text-decoration: none; font-weight: 600;
}
.footer a:hover { text-decoration: underline; }

/* ── Subscribe form (inside modal) ─────────────────────────── */
.subscribe-form__row {
    display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem;
}
.subscribe-form__row .filter-group { flex: 1; min-width: 160px; }
.subscribe-form__row .filter-group--wide { flex: 100%; }

.subscribe-form input[type="email"] {
    width: 100%; height: 40px; padding: 0 0.75rem;
    font-family: inherit; font-size: 0.8125rem; color: var(--color-ink);
    background: var(--color-foundation); border: 1px solid var(--color-border);
    border-radius: var(--radius-sm); transition: border-color var(--transition-fast);
}
.subscribe-form input[type="email"]:focus {
    outline: none; border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(87,168,230,0.12);
}

/* Weekday chip picker */
.weekday-picker { display: flex; gap: 0.375rem; flex-wrap: wrap; }
.weekday-chip {
    position: relative; cursor: pointer; user-select: none;
}
.weekday-chip input { position: absolute; opacity: 0; width: 0; height: 0; }
.weekday-chip span {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 0.375rem 0.75rem; font-size: 0.75rem; font-weight: 600;
    color: var(--color-grey); background: var(--color-foundation);
    border: 1px solid var(--color-border); border-radius: 100px;
    transition: all var(--transition-fast); letter-spacing: 0.02em;
}
.weekday-chip input:checked + span {
    color: #FFFFFF; background: var(--color-marine);
    border-color: var(--color-marine);
}
.weekday-chip:hover span {
    border-color: var(--color-grey-light);
}

/* Notification mode radio cards */
.notif-mode-picker {
    display: flex; flex-direction: column; gap: 0.5rem; width: 100%;
}
.notif-mode-option {
    position: relative; cursor: pointer; user-select: none; display: block;
}
.notif-mode-option input[type="radio"] {
    position: absolute; opacity: 0; width: 0; height: 0;
}
.notif-mode-option__content {
    display: flex; flex-direction: column; gap: 0.125rem;
    padding: 0.75rem 1rem;
    background: var(--color-foundation);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}
.notif-mode-option__content strong {
    font-size: 0.8125rem; font-weight: 700; color: var(--color-marine);
}
.notif-mode-option__content small {
    font-size: 0.75rem; font-weight: 400; color: var(--color-grey);
    line-height: 1.4;
}
.notif-mode-option:hover .notif-mode-option__content {
    border-color: var(--color-grey-light);
}
.notif-mode-option input[type="radio"]:checked + .notif-mode-option__content {
    border-color: var(--color-accent);
    background: rgba(87,168,230,0.06);
    box-shadow: 0 0 0 1px var(--color-accent);
}

/* Subscribe button */
.subscribe-btn {
    display: inline-flex; align-items: center; justify-content: center;
    gap: 0.5rem; margin-top: 0.25rem; width: 100%;
    padding: 0.625rem 1.5rem; font-family: inherit; font-size: 0.875rem;
    font-weight: 600; color: #FFFFFF; background: var(--color-marine);
    border: none; border-radius: 100px; cursor: pointer;
    transition: all var(--transition-base);
}
.subscribe-btn svg { width: 18px; height: 18px; }
.subscribe-btn:hover { background: #163A4F; transform: translateY(-1px); box-shadow: var(--shadow-md); }
.subscribe-btn:active { transform: translateY(0); }
.subscribe-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* Subscribe status message */
.subscribe-status {
    margin-top: 0.75rem; padding: 0.75rem 1rem; border-radius: var(--radius-sm);
    font-size: 0.8125rem; font-weight: 500;
}
.subscribe-status--success {
    color: #15803D; background: #F0FDF4; border: 1px solid #BBF7D0;
}
.subscribe-status--error {
    color: #B91C1C; background: #FEF2F2; border: 1px solid #FECACA;
}

/* ── Responsive: Mobile card layout ─────────────────────────────── */
@media (max-width: 640px) {
    .page { padding: 0.75rem; }
    .header { flex-direction: column; gap: 1rem; padding-bottom: 1.25rem; margin-bottom: 1.25rem; }
    .header__meta { text-align: left; flex-direction: row; gap: 1.5rem; }
    .filter-row { flex-direction: column; }
    .facility-card__header { padding: 0.75rem 1rem; }

    /* Mobile list layout — 2-line rows */
    .slot-table { table-layout: auto; }
    .slot-table colgroup { display: none; }
    .slot-table thead { display: none; }
    .slot-table tbody tr:not(.slot-date-header) {
        display: grid;
        grid-template-columns: 1fr auto auto;
        gap: 0.375rem 0.75rem;
        padding: 0.875rem 1rem;
        align-items: center;
    }
    .slot-table tbody tr[data-hidden="true"] { display: none; }

    /* Line 1: Time · Duration | Price */
    .slot-table td:nth-child(3) {
        grid-column: 1; grid-row: 1;
        padding: 0; font-size: 0.9375rem; font-weight: 600;
        color: var(--color-marine);
    }
    .slot-table td:nth-child(5) {
        grid-column: 2; grid-row: 1;
        padding: 0;
    }
    .slot-table td:nth-child(6) {
        grid-column: 3; grid-row: 1;
        text-align: right; padding: 0;
        font-size: 0.875rem;
    }

    /* Line 2: Court · Type | Book */
    .slot-table td:nth-child(2) {
        grid-column: 1; grid-row: 2;
        padding: 0; font-size: 0.8125rem;
        overflow: visible; white-space: normal; word-break: break-word;
    }
    .slot-table td:nth-child(4) {
        grid-column: 2; grid-row: 2;
        padding: 0;
    }
    .slot-table td:nth-child(7) {
        grid-column: 3; grid-row: 2;
        text-align: right; padding: 0;
    }

    /* Hide date column on mobile — shown via date group headers instead */
    .slot-table tr:not(.slot-date-header) > td:nth-child(1) { display: none; }

    /* Date group headers — visible on mobile */
    .slot-date-header {
        display: block !important;
        padding: 0.625rem 1rem; font-size: 0.875rem; font-weight: 700;
        color: var(--color-marine);
        background: var(--color-foundation);
        border-bottom: 2px solid var(--color-border);
        border-top: 2px solid var(--color-border);
        border-left: 3px solid var(--color-accent);
        margin-top: 0.5rem;
    }
    .slot-date-header:first-child { margin-top: 0; }
    .slot-date-header[data-hidden="true"] { display: none !important; }
    .slot-date-header td { display: inline; }

    /* Date chips: horizontal scroll instead of wrapping */
    #dateFilter {
        flex-wrap: nowrap; overflow-x: auto; -webkit-overflow-scrolling: touch;
        scrollbar-width: none; overscroll-behavior-x: contain;
        /* constrain width: viewport - page padding - filter-panel padding - border */
        max-width: calc(100vw - 1.5rem - 3rem - 2px);
    }
    #dateFilter::-webkit-scrollbar { display: none; }
    #dateFilter .weekday-chip { flex-shrink: 0; }

    /* Subscribe form mobile adjustments */
    .subscribe-form__row { flex-direction: column; }
}