:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --bg: #f4f6f9;
    --card: #ffffff;
    --border: #e2e8f0;
    --text: #1e293b;
    --dim: #64748b;
    --danger: #dc2626;
    --success: #16a34a;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
}

/* Login */
.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.login-card {
    background: var(--card);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.2);
    width: 100%;
    max-width: 380px;
}

.login-logo { text-align: center; margin-bottom: 4px; }
.login-logo i { font-size: 36px; color: var(--primary); }
.login-logo h1 { margin: 8px 0 0; font-size: 24px; }
.login-sub { text-align: center; color: var(--dim); margin-bottom: 24px; font-size: 14px; }

.login-card label { display: block; font-size: 13px; font-weight: 600; margin: 14px 0 6px; }
.login-card input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
}
.login-card input:focus { outline: none; border-color: var(--primary); }

.login-card button {
    width: 100%;
    margin-top: 22px;
    padding: 12px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s;
}
.login-card button:hover { background: var(--primary-dark); }
.login-card button:disabled { opacity: 0.7; cursor: default; }

.login-error {
    background: #fef2f2;
    color: var(--danger);
    padding: 10px 12px;
    border-radius: 8px;
    font-size: 13px;
    margin-top: 14px;
}

/* Topbalk */
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--card);
    border-bottom: 1px solid var(--border);
    padding: 0 24px;
    height: 60px;
}
.topbar-logo {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}
.topbar-nav { display: flex; gap: 20px; }
.topbar-nav a { color: var(--text); text-decoration: none; font-size: 14px; font-weight: 500; }
.topbar-nav a:hover { color: var(--primary); }
.topbar-user { display: flex; align-items: center; gap: 14px; font-size: 14px; }
.topbar-user a { color: var(--dim); text-decoration: none; }
.topbar-user small { color: var(--dim); }

/* Contentruimte */
.page-content { max-width: 1200px; margin: 0 auto; padding: 32px 24px; }
.page-header { margin-bottom: 28px; }
.page-header h1 { margin: 0 0 4px; font-size: 26px; }
.text-dim { color: var(--dim); }

/* Modulegrid (hoofdpagina) */
.module-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 18px;
}
.module-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    text-decoration: none;
    color: var(--text);
    transition: transform 0.15s, box-shadow 0.15s;
}
.module-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
    border-color: var(--primary);
}
.module-icon {
    width: 46px; height: 46px;
    border-radius: 10px;
    background: #eff6ff;
    color: var(--primary);
    display: flex; align-items: center; justify-content: center;
    font-size: 20px;
    margin-bottom: 14px;
}
.module-card h3 { margin: 0 0 6px; font-size: 16px; }
.module-card p { margin: 0; font-size: 13px; color: var(--dim); }

.empty-state { text-align: center; padding: 60px 20px; color: var(--dim); }
.empty-state i { font-size: 40px; margin-bottom: 12px; color: var(--border); }

/* Algemene kaarten / formulieren / tabellen */
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 18px; }
.form-grid label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; }
.form-grid input {
    width: 100%;
    padding: 9px 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
}
.form-grid button {
    padding: 10px 18px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
}

.beheer-tabel-wrap { overflow-x: auto; background: var(--card); border: 1px solid var(--border); border-radius: 12px; }
.beheer-tabel { width: 100%; border-collapse: collapse; font-size: 14px; }
.beheer-tabel th, .beheer-tabel td { padding: 12px 16px; border-bottom: 1px solid var(--border); text-align: left; }
.beheer-tabel th { background: #f8fafc; font-weight: 600; white-space: nowrap; }
.text-center { text-align: center; }

/* Toggle switch */
.switch { position: relative; display: inline-block; width: 40px; height: 22px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; inset: 0; background: #cbd5e1; border-radius: 22px; transition: 0.15s; }
.slider::before {
    content: ""; position: absolute; height: 16px; width: 16px;
    left: 3px; bottom: 3px; background: #fff; border-radius: 50%; transition: 0.15s;
}
.switch input:checked + .slider { background: var(--success); }
.switch input:checked + .slider::before { transform: translateX(18px); }
.switch input:disabled + .slider { opacity: 0.4; cursor: not-allowed; }