:root {
    --achtergrond: #eef6f7;
    --kaart: #ffffff;
    --accent: #287f8c;
    --accent-donker: #1c626c;
    --rand: #cad8db;
    --tekst: #172124;
    --tekst-mute: #4f5b61;
    --link: #075d77;
    --link-hover: #033f4e;
    --button-text: #ffffff;
    --input-bg: #ffffff;
    --input-border: #aab9bd;
    --melding-achtergrond: #fff1c3;
    --melding-border: #d6b84e;
    --status-goed: #d9f1dc;
    --status-fout: #ffd9d9;
    --table-head: #dceff2;
    --table-row: #f9fcfd;
    --table-row-alt: #edf5f7;
}

.dark-theme {
    --achtergrond: #131b20;
    --kaart: #1f292f;
    --accent: #4a90d9;
    --accent-donker: #2f5ea1;
    --rand: #3c4c57;
    --tekst: #e9eef2;
    --tekst-mute: #b3bac2;
    --link: #aad4ff;
    --link-hover: #dceeff;
    --button-text: #ffffff;
    --input-bg: #23303a;
    --input-border: #4a5c69;
    --melding-achtergrond: #2d3a44;
    --melding-border: #5c6f82;
    --status-goed: #193927;
    --status-fout: #4b2727;
    --table-head: #22313b;
    --table-row: #1e272f;
    --table-row-alt: #16202a;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: var(--achtergrond);
    color: var(--tekst);
}

.topbar {
    background: var(--accent);
    color: white;
    padding: 14px 18px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.topbar h1 { margin: 0; font-size: 1.35rem; }
.topbar p { margin: 3px 0 0; font-size: .85rem; }

#theme-toggle {
    background: rgba(255,255,255,0.18);
    border: 1px solid rgba(255,255,255,0.3);
    color: white;
    font-size: .92rem;
    min-width: 115px;
}

#theme-toggle:hover {
    background: rgba(255,255,255,0.28);
}

nav { display: flex; gap: 8px; }
nav a { color: white; text-decoration: none; padding: 8px; }

main {
    max-width: 1350px;
    margin: 18px auto;
    padding: 0 12px 40px;
}

#menu-toggle {
    display: none;
}

@media (max-width: 700px) {
    .topbar {
        align-items: stretch;
        flex-direction: column;
        gap: 10px;
    }

    .topbar > div,
    .topbar-user,
    #theme-toggle,
    #menu-toggle {
        width: 100%;
    }

    .topbar > div {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }

    .topbar > div h1,
    .topbar > div p {
        width: 100%;
        text-align: left;
    }

    #theme-toggle,
    #menu-toggle {
        display: inline-flex;
        justify-content: center;
        width: auto;
        margin-top: 8px;
    }

    nav {
        display: none;
        flex-direction: column;
        gap: 6px;
        width: 100%;
        padding: 10px 0;
        border-top: 1px solid var(--rand);
    }

    body.menu-open nav {
        display: flex;
    }

    nav a {
        padding: 10px 12px;
        border-radius: 6px;
        background: rgba(255,255,255,0.08);
    }

    .topbar-user {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        gap: 10px;
        padding: 10px 0;
        border-top: 1px solid var(--rand);
    }

    .topbar-user form {
        margin-left: 0;
    }

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

    .formulier {
        max-width: 100%;
    }

    .houding {
        width: 100%;
    }

    .knoppen {
        flex-direction: column;
        align-items: stretch;
    }

    .filters .knoppen {
        flex-direction: row;
        justify-content: space-between;
        gap: 10px;
        flex-wrap: wrap;
    }

    .filters .knoppen .knop,
    .filters .knoppen a {
        flex: 1 1 calc(50% - 5px);
        min-width: 0;
    }

    .filters .knoppen .knop + .knop,
    .filters .knoppen .knop + a {
        margin-left: 0;
    }

    .filters .knoppen button,
    .filters .knoppen a {
        width: 100%;
    }

    .knoppen .knop,
    .inline-form button {
        width: 100%;
    }

    input, button, select, textarea {
        width: 100%;
    }

    .tabelvak {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    table {
        min-width: 700px;
    }

    th, td {
        padding: 10px 8px;
    }

    .inline-form {
        width: 100%;
    }

    .inline-form input,
    .inline-form button {
        width: 100%;
    }
}

.kaart {
    background: var(--kaart);
    border: 1px solid var(--rand);
    border-radius: 8px;
    padding: 14px;
    margin-bottom: 14px;
}

.filters {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 10px;
    align-items: end;
}

.inline-form {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
}

.inline-form button {
    width: auto;
}

label {
    display: block;
    font-size: .85rem;
    font-weight: bold;
}

input, button, select, textarea {
    width: 100%;
    min-height: 40px;
    margin-top: 4px;
    padding: 8px;
    font: inherit;
    border-radius: 5px;
    border: 1px solid var(--input-border);
    background: var(--input-bg);
    color: var(--tekst);
}

input::placeholder,
textarea::placeholder {
    color: var(--tekst-mute);
}

button, .knop {
    display: inline-block;
    width: auto;
    border: none;
    background: var(--accent);
    color: var(--button-text);
    text-decoration: none;
    padding: 10px 14px;
    border-radius: 5px;
    cursor: pointer;
}

button:hover, .knop:hover { background: var(--accent-donker); }
.secundair { background: var(--accent-donker); }
.klein { padding: 6px 9px; }

.knoppen {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
}

.samenvatting {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
    align-items: center;
}

.status {
    padding: 5px 8px;
    border-radius: 5px;
    font-size: .85rem;
}
.status.goed { background: #d9f1dc; }
.status.fout { background: #ffd9d9; }

.melding {
    background: var(--melding-achtergrond);
    border: 1px solid var(--melding-border);
    border-radius: 5px;
    padding: 10px;
    margin-bottom: 12px;
}

.tabelvak {
    overflow: auto;
    max-height: 68vh;
    border: 1px solid var(--rand);
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--kaart);
    font-size: .88rem;
}

th, td {
    padding: 8px;
    border-bottom: 1px solid var(--rand);
    text-align: left;
    white-space: nowrap;
}

th {
    position: sticky;
    top: 0;
    z-index: 1;
    background: var(--table-head);
}

tbody tr:nth-child(even) {
    background: var(--table-row-alt);
}

tbody tr:nth-child(odd) {
    background: var(--table-row);
}

tbody tr:hover {
    background: rgba(74, 144, 217, 0.12);
}

.getal { text-align: right; }
.bankgegevens { max-width: 420px; overflow: hidden; text-overflow: ellipsis; }

.formulier { max-width: 700px; }
.formulier label { margin-bottom: 14px; }

dl {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 8px;
}
dt { font-weight: bold; }
dd { margin: 0; }

@media (max-width: 650px) {
    main { padding: 0 6px 30px; }
    .kaart { padding: 10px; }
    th, td { padding: 6px; }
    .topbar { align-items: flex-start; }
}

/* Rekeningenbeheer */
.rekeningen-tabel th:nth-child(1),
.rekeningen-tabel td:nth-child(1) {
    width: 90px;
}

.rekeningen-tabel th:nth-child(3),
.rekeningen-tabel td:nth-child(3) {
    width: 90px;
    text-align: right;
}

.rekeningen-tabel th:nth-child(4),
.rekeningen-tabel td:nth-child(4) {
    width: 120px;
}

.rekeningen-tabel td form {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
}

.rekeningen-tabel td form input {
    flex: 1;
    min-width: 220px;
    margin-top: 0;
}

.rekeningen-tabel td form button {
    flex: 0 0 auto;
    margin-top: 0;
}