:root {
    --bg: #eef2f5;
    --card: #ffffff;
    --text: #1f2933;
    --muted: #6b7280;
    --border: #d6dce1;
    --primary: #1f5f8b;
    --primary-dark: #174766;
    --soft-blue: #e8f2f8;
    --danger: #b42318;
    --danger-dark: #8f1d14;
}

/* Algemene basis */

* {
    box-sizing: border-box;
}

html {
    min-height: 100%;
}

body {
    margin: 0;
    min-height: 100%;
    font-family: Arial, Helvetica, sans-serif;
    color: var(--text);

    background:
        linear-gradient(
            rgba(238, 242, 245, 0.72),
            rgba(238, 242, 245, 0.72)
        ),
        url("images/water-bg.png");

    background-size: cover;
    background-position: center center;
    background-attachment: fixed;
    background-repeat: no-repeat;
}

/* Header */

.site-header {
    background: linear-gradient(135deg, #17384d, #1f5f8b);
    color: white;
    padding: 26px 24px;
    box-shadow: 0 3px 16px rgba(23, 56, 77, 0.22);
}

.site-header-inner {
    max-width: 1100px;
    margin: 0 auto;
}

.site-header h1 {
    margin: 0;
    font-size: 30px;
    line-height: 1.2;
}

.site-header p {
    margin: 6px 0 0;
    color: #dceaf2;
}

/* Pagina layout */

.page {
    max-width: 1100px;
    margin: 24px auto;
    padding: 0 16px 44px;
}

.top-actions {
    margin-bottom: 18px;
}

.card {
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 24px;
    margin-bottom: 18px;
    box-shadow: 0 4px 14px rgba(23, 56, 77, 0.12);
    backdrop-filter: blur(3px);
}

.card h2 {
    margin: 0 0 6px;
    font-size: 22px;
    color: #17384d;
}

.card h3 {
    margin-top: 22px;
    color: #17384d;
}

.card-description {
    margin: 0 0 18px;
    color: var(--muted);
    line-height: 1.45;
}

.section-note {
    background: var(--soft-blue);
    border-left: 4px solid var(--primary);
    padding: 12px 14px;
    border-radius: 8px;
    color: #25465d;
    margin-bottom: 16px;
}

.warning-box {
    background: #fff4f2;
    border: 1px solid #f0b8b0;
    border-left: 4px solid var(--danger);
    padding: 14px;
    border-radius: 8px;
    color: #6b1d16;
    margin-bottom: 18px;
}

.empty-state {
    background: #f8fafc;
    border: 1px dashed var(--border);
    padding: 22px;
    border-radius: 10px;
    color: var(--muted);
}

/* Links en knoppen */

a {
    color: var(--primary);
}

.small-link {
    color: var(--primary);
    text-decoration: none;
}

.small-link:hover {
    text-decoration: underline;
}

.button-row {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-top: 22px;
    flex-wrap: wrap;
}

.button {
    display: inline-block;
    border: none;
    border-radius: 8px;
    padding: 11px 16px;
    background: var(--primary);
    color: white;
    text-decoration: none;
    font-size: 15px;
    font-weight: bold;
    cursor: pointer;
    line-height: 1.2;
}

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

.button-secondary {
    background: #6b7280;
}

.button-secondary:hover {
    background: #4b5563;
}

.button-danger {
    background: var(--danger);
}

.button-danger:hover {
    background: var(--danger-dark);
}

/* Formulieren */

form label {
    display: block;
    font-weight: bold;
    margin-bottom: 6px;
}

.form-row {
    margin-bottom: 14px;
}

.hint {
    display: block;
    margin-top: 4px;
    font-size: 13px;
    color: var(--muted);
    font-weight: normal;
}

input,
select,
textarea {
    width: 100%;
    padding: 11px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 15px;
    background: white;
    color: var(--text);
}

input:focus,
select:focus,
textarea:focus {
    outline: 2px solid #b8d8ee;
    border-color: var(--primary);
}

textarea {
    min-height: 90px;
    resize: vertical;
}

.grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.grid-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 16px;
}

/* Inklapbare blokken */

details.card {
    padding: 0;
    overflow: hidden;
}

details.card summary {
    list-style: none;
    cursor: pointer;
    padding: 20px 24px;
    color: #17384d;
    font-size: 20px;
    border-bottom: 1px solid var(--border);
    background: rgba(248, 250, 252, 0.8);
}

details.card summary::-webkit-details-marker {
    display: none;
}

details.card summary::before {
    content: "▶";
    display: inline-block;
    margin-right: 8px;
    font-size: 13px;
    transform: translateY(-1px);
}

details.card[open] summary::before {
    content: "▼";
}

details.card > *:not(summary) {
    margin-left: 24px;
    margin-right: 24px;
}

details.card > p.card-description,
details.card > .section-note,
details.card > .form-row,
details.card > .grid {
    margin-top: 16px;
}

details.card > *:last-child {
    margin-bottom: 24px;
}

/* Zoekformulier */

.search-form {
    margin-top: 14px;
}

.search-actions {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-top: 16px;
    flex-wrap: wrap;
}

.search-summary {
    margin-top: 12px;
    color: var(--muted);
}

/* Tabellen */

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 12px;
    overflow: hidden;
    border-radius: 10px;
}

.data-table th {
    background: #f3f6f8;
    color: #17384d;
    text-align: left;
    font-size: 14px;
    padding: 12px;
    border-bottom: 1px solid var(--border);
}

.data-table td {
    padding: 12px;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}

.data-table tr:hover td {
    background: #f8fafc;
}

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

.detail-table th {
    width: 220px;
    text-align: left;
    color: #17384d;
    padding: 10px;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}

.detail-table td {
    padding: 10px;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}

.badge {
    display: inline-block;
    padding: 4px 9px;
    border-radius: 999px;
    background: var(--soft-blue);
    color: #174766;
    font-size: 13px;
    font-weight: bold;
    white-space: nowrap;
}

.meta-line {
    color: var(--muted);
    margin-top: 4px;
    line-height: 1.35;
}

/* Kleine visuele verfijning voor logboekgevoel */

.card,
input,
select,
textarea,
.button {
    transition:
        background-color 0.15s ease,
        border-color 0.15s ease,
        box-shadow 0.15s ease;
}

.card:hover {
    box-shadow: 0 5px 18px rgba(23, 56, 77, 0.11);
}

/* Mobiel / iPad */

@media (max-width: 760px) {
    .site-header {
        padding: 22px 18px;
    }

    .site-header h1 {
        font-size: 24px;
    }

    .page {
        margin: 16px auto;
        padding: 0 12px 36px;
    }

    .card {
        padding: 16px;
        border-radius: 12px;
    }

    .grid,
    .grid-3 {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .button-row,
    .search-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .button {
        text-align: center;
    }

    details.card {
        padding: 0;
    }

    details.card summary {
        padding: 16px;
        font-size: 18px;
    }

    details.card > *:not(summary) {
        margin-left: 16px;
        margin-right: 16px;
    }

    .data-table,
    .data-table thead,
    .data-table tbody,
    .data-table th,
    .data-table td,
    .data-table tr {
        display: block;
    }

    .data-table thead {
        display: none;
    }

    .data-table tr {
        border: 1px solid var(--border);
        border-radius: 10px;
        margin-bottom: 12px;
        background: white;
        padding: 8px;
    }

    .data-table td {
        border-bottom: none;
        padding: 7px 4px;
    }

    .detail-table th,
    .detail-table td {
        display: block;
        width: 100%;
        padding: 8px 0;
    }

    .detail-table th {
        border-bottom: none;
        padding-top: 14px;
    }
}