:root {
    --blue: #1b5fae;
    --blue-dark: #124a8a;
    --gray-bg: #f4f6f8;
    --border: #d8dee4;
    --text: #1f2937;
    --text-muted: #6b7280;
    --green: #1a7f4a;
    --red: #b3261e;
    --amber: #b7791f;
    --radius: 6px;
}

* { box-sizing: border-box; }

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

.topbar {
    background: var(--blue);
    color: #fff;
    display: flex;
    align-items: center;
    padding: 0 24px;
    height: 56px;
}

.topbar h1 {
    font-size: 18px;
    font-weight: 600;
    margin: 0;
}

#main-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: 32px;
    flex: 1;
}

#main-nav.hidden { display: none; }

.nav-btn {
    background: transparent;
    border: none;
    color: #e6eefb;
    padding: 8px 14px;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 14px;
}

.nav-btn:hover, .nav-btn.active {
    background: rgba(255,255,255,0.15);
    color: #fff;
}

.spacer { flex: 1; }

#current-user { font-size: 13px; color: #dbe7fb; margin-right: 12px; }

.btn-link {
    background: none;
    border: none;
    color: #dbe7fb;
    cursor: pointer;
    text-decoration: underline;
    font-size: 13px;
}

main { padding: 24px; max-width: 1100px; margin: 0 auto; }

.card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 20px;
}

.card h2 { margin-top: 0; font-size: 16px; }
.card h3 { font-size: 14px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .03em; }

.form-row { margin-bottom: 14px; }
.form-row label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 4px; }
.form-row input, .form-row select, .form-row textarea {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    font-family: inherit;
}
.form-row .hint { font-size: 12px; color: var(--text-muted); margin-top: 4px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }

.btn {
    background: var(--blue);
    color: #fff;
    border: none;
    padding: 9px 16px;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
}
.btn:hover { background: var(--blue-dark); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn.secondary { background: #fff; color: var(--blue); border: 1px solid var(--blue); }
.btn.danger { background: #fff; color: var(--red); border: 1px solid var(--red); }
.btn.small { padding: 5px 10px; font-size: 12px; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--text-muted); font-weight: 600; font-size: 12px; text-transform: uppercase; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px; font-weight: 600; }
.badge.nieuw { background: #e3f6ea; color: var(--green); }
.badge.bestaat_al { background: #fdf1dc; color: var(--amber); }
.badge.created { background: #e3f6ea; color: var(--green); }
.badge.skipped { background: #eef0f2; color: var(--text-muted); }
.badge.error { background: #fbe6e5; color: var(--red); }

.alert { padding: 10px 14px; border-radius: var(--radius); font-size: 13px; margin-bottom: 14px; }
.alert.error { background: #fbe6e5; color: var(--red); border: 1px solid #f2b8b5; }
.alert.success { background: #e3f6ea; color: var(--green); border: 1px solid #b9e5c9; }
.alert.info { background: #e8f0fb; color: var(--blue-dark); border: 1px solid #c3d7f2; }

.tabs { display: flex; gap: 4px; margin-bottom: 16px; border-bottom: 1px solid var(--border); }
.tab-btn {
    background: none; border: none; padding: 10px 16px; cursor: pointer;
    font-size: 14px; color: var(--text-muted); border-bottom: 2px solid transparent;
}
.tab-btn.active { color: var(--blue); border-bottom-color: var(--blue); font-weight: 600; }

.login-wrap { display: flex; justify-content: center; align-items: center; min-height: 70vh; }
.login-card { width: 340px; }

.steps { display: flex; gap: 8px; margin-bottom: 20px; font-size: 13px; }
.step { padding: 6px 12px; border-radius: 999px; background: #eef0f2; color: var(--text-muted); }
.step.active { background: var(--blue); color: #fff; }
.step.done { background: #e3f6ea; color: var(--green); }

.mapping-grid { display: grid; grid-template-columns: 160px 1fr; gap: 10px; align-items: center; margin-bottom: 8px; }

pre.payload { background: #f4f6f8; padding: 10px; border-radius: var(--radius); font-size: 12px; max-height: 200px; overflow: auto; white-space: pre-wrap; }

textarea.payload-edit {
    width: 100%;
    font-family: "SFMono-Regular", Consolas, monospace;
    font-size: 12px;
    background: #f4f6f8;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 8px;
    margin-top: 6px;
}

details summary { cursor: pointer; font-size: 12px; color: var(--blue); }

.row-actions { display: flex; gap: 6px; }

.muted { color: var(--text-muted); font-size: 12px; }

.toolbar { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }