/* =====================
   Reset & basis
   ===================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --blauw:     #1a73e8;
    --blauw-dark:#1557b0;
    --groen:     #16a34a;
    --rood:      #dc2626;
    --oranje:    #d97706;
    --paars:     #7c3aed;
    --grijs-100: #f3f4f6;
    --grijs-200: #e5e7eb;
    --grijs-400: #9ca3af;
    --grijs-700: #374151;
    --grijs-900: #111827;
    --wit:       #ffffff;
    --schaduw:   0 1px 8px rgba(0,0,0,.08);
    --radius:    10px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #f0f4f8;
    color: var(--grijs-900);
    font-size: 15px;
    line-height: 1.5;
}

a { color: var(--blauw); text-decoration: none; }
a:hover { text-decoration: underline; }

/* =====================
   Navigatie
   ===================== */
.nav {
    background: var(--wit);
    border-bottom: 1px solid var(--grijs-200);
    display: flex;
    align-items: center;
    padding: 0 24px;
    height: 60px;
    gap: 24px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--schaduw);
}

.nav-merk {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--grijs-900);
    white-space: nowrap;
    min-width: 200px;
}

.nav-logo { font-size: 1.4rem; }

.nav-links {
    display: flex;
    list-style: none;
    gap: 4px;
    flex: 1;
}

.nav-links a {
    display: block;
    padding: 6px 14px;
    border-radius: 6px;
    color: var(--grijs-700);
    font-weight: 500;
    font-size: .9rem;
    transition: background .15s, color .15s;
}

.nav-links a:hover { background: var(--grijs-100); text-decoration: none; }
.nav-links a.actief { background: #e8f0fe; color: var(--blauw); }

.nav-gebruiker {
    display: flex;
    align-items: center;
    gap: 12px;
    white-space: nowrap;
}

.nav-naam-gebruiker {
    font-size: .875rem;
    color: var(--grijs-700);
    font-weight: 500;
}

.knop-uitloggen {
    background: var(--grijs-100);
    color: var(--grijs-700);
    padding: 6px 14px;
    border-radius: 6px;
    font-size: .875rem;
    font-weight: 500;
    transition: background .15s;
}

.knop-uitloggen:hover { background: var(--grijs-200); text-decoration: none; }

/* =====================
   Pagina layout
   ===================== */
.pagina {
    max-width: 1100px;
    margin: 0 auto;
    padding: 32px 24px;
}

.pagina-kop {
    margin-bottom: 28px;
}

.pagina-kop h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--grijs-900);
}

.pagina-kop p {
    color: var(--grijs-400);
    font-size: .9rem;
    margin-top: 4px;
}

/* =====================
   Saldo kaarten
   ===================== */
.saldo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}

.saldo-kaart {
    background: var(--wit);
    border-radius: var(--radius);
    box-shadow: var(--schaduw);
    padding: 20px 24px;
    border-left: 4px solid var(--blauw);
}

.saldo-kaart .soort-naam {
    font-size: .8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--grijs-400);
    margin-bottom: 8px;
}

.saldo-kaart .uren-over {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
}

.saldo-kaart .uren-detail {
    font-size: .8rem;
    color: var(--grijs-400);
    margin-top: 4px;
}

/* =====================
   Tabel
   ===================== */
.kaart {
    background: var(--wit);
    border-radius: var(--radius);
    box-shadow: var(--schaduw);
    overflow: hidden;
    margin-bottom: 24px;
}

.kaart-kop {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    border-bottom: 1px solid var(--grijs-200);
}

.kaart-kop h2 {
    font-size: 1rem;
    font-weight: 600;
}

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

th, td {
    padding: 12px 24px;
    text-align: left;
    font-size: .875rem;
}

th {
    background: var(--grijs-100);
    font-weight: 600;
    color: var(--grijs-700);
    font-size: .8rem;
    text-transform: uppercase;
    letter-spacing: .04em;
}

tr:not(:last-child) td {
    border-bottom: 1px solid var(--grijs-200);
}

tr:hover td { background: #fafafa; }

.leeg-tabel {
    text-align: center;
    padding: 32px;
    color: var(--grijs-400);
}

/* =====================
   Badges (status)
   ===================== */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: .75rem;
    font-weight: 600;
}

.badge-wachtend   { background: #fef9c3; color: #854d0e; }
.badge-goedgekeurd { background: #dcfce7; color: #166534; }
.badge-afgewezen  { background: #fee2e2; color: #991b1b; }

/* =====================
   Knoppen
   ===================== */
.knop {
    display: inline-block;
    padding: 9px 18px;
    border-radius: 8px;
    font-size: .875rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: background .15s;
    text-decoration: none;
}

.knop-primair {
    background: var(--blauw);
    color: var(--wit);
}

.knop-primair:hover { background: var(--blauw-dark); text-decoration: none; }

.knop-succes { background: var(--groen); color: var(--wit); }
.knop-succes:hover { background: #15803d; text-decoration: none; }

.knop-gevaar { background: var(--rood); color: var(--wit); }
.knop-gevaar:hover { background: #b91c1c; text-decoration: none; }

.knop-grijs { background: var(--grijs-200); color: var(--grijs-700); }
.knop-grijs:hover { background: var(--grijs-200); text-decoration: none; }

/* =====================
   Formulieren
   ===================== */
.formulier-rij {
    margin-bottom: 20px;
}

.formulier-rij label {
    display: block;
    font-size: .875rem;
    font-weight: 600;
    color: var(--grijs-700);
    margin-bottom: 6px;
}

.formulier-rij input,
.formulier-rij select,
.formulier-rij textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--grijs-200);
    border-radius: 8px;
    font-size: .95rem;
    font-family: inherit;
    outline: none;
    transition: border-color .2s;
}

.formulier-rij input:focus,
.formulier-rij select:focus,
.formulier-rij textarea:focus {
    border-color: var(--blauw);
}

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

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

/* =====================
   Meldingen
   ===================== */
.melding {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: .875rem;
    font-weight: 500;
}

.melding-succes { background: #dcfce7; color: #166534; border: 1px solid #bbf7d0; }
.melding-fout   { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }
.melding-info   { background: #e0f2fe; color: #075985; border: 1px solid #bae6fd; }

/* =====================
   Hamburger knop
   ===================== */
.nav-hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    margin-left: auto;
}

.nav-hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--grijs-700);
    border-radius: 2px;
    transition: all .25s;
}

.nav-hamburger.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.nav-hamburger.open span:nth-child(2) {
    opacity: 0;
}
.nav-hamburger.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* =====================
   Responsive — tablet & telefoon
   ===================== */
@media (max-width: 768px) {

    /* Navigatie */
    .nav {
        flex-wrap: wrap;
        height: auto;
        min-height: 60px;
        padding: 0 16px;
        gap: 0;
    }

    .nav-merk {
        min-width: 0;
        flex: 1;
        padding: 14px 0;
    }

    .nav-hamburger {
        display: flex;
    }

    .nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        border-top: 1px solid var(--grijs-200);
        padding: 8px 0;
        gap: 2px;
    }

    .nav-links.open {
        display: flex;
    }

    .nav-links li {
        width: 100%;
    }

    .nav-links a {
        padding: 12px 16px;
        font-size: .95rem;
        border-radius: 8px;
    }

    .nav-gebruiker {
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
        padding: 12px 16px;
        border-top: 1px solid var(--grijs-200);
    }

    .nav-gebruiker.open {
        display: flex;
    }

    .knop-uitloggen {
        width: 100%;
        text-align: center;
        padding: 10px 14px;
    }

    /* Pagina */
    .pagina {
        padding: 16px;
    }

    /* Formulieren */
    .formulier-grid {
        grid-template-columns: 1fr;
    }

    /* Tabellen: horizontaal scrollen */
    .kaart {
        overflow-x: auto;
    }

    table {
        min-width: 540px;
    }

    th, td {
        padding: 10px 14px;
        font-size: .8rem;
    }

    /* Saldo-kaarten */
    .saldo-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 12px;
    }

    .saldo-kaart {
        padding: 16px;
    }

    .saldo-kaart .uren-over {
        font-size: 1.6rem;
    }

    /* Modals */
    .modal-overlay {
        align-items: flex-end;
        padding: 0;
    }

    .modal {
        border-radius: var(--radius) var(--radius) 0 0;
        max-height: 92vh;
        overflow-y: auto;
        width: 100%;
        max-width: 100%;
        padding: 24px 20px;
    }

    /* Knoppen in rijen */
    .knop {
        padding: 10px 14px;
        font-size: .85rem;
    }

    /* Pagina-kop */
    .pagina-kop h1 {
        font-size: 1.25rem;
    }
}