/* ============================================================
   abao.de – Öffentliches Stylesheet (responsive)
   ============================================================ */
:root {
    --bg: #f6f8fb;
    --bg-card: #ffffff;
    --text: #1f2937;
    --muted: #6b7280;
    --border: #e5e7eb;
    --primary: #1d4ed8;
    --primary-dark: #1e40af;
    --accent: #16a34a;
    --accent-dark: #15803d;
    --danger: #dc2626;
    --warn: #d97706;
    --shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);
    --radius: 10px;
}
[data-theme="dark"] {
    --bg: #0f172a;
    --bg-card: #1e293b;
    --text: #e5e7eb;
    --muted: #9ca3af;
    --border: #334155;
}
* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: 1140px; margin: 0 auto; padding: 0 20px; }
.main-content { min-height: 60vh; padding-top: 28px; padding-bottom: 48px; }

/* Header */
.site-header { background: var(--bg-card); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 50; }
.header-inner { padding: 14px 20px; }
.header-row { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 8px; font-size: 1.4rem; font-weight: 800; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand-icon { font-size: 1.6rem; }
.tagline { color: var(--muted); font-size: .85rem; margin: 0; flex: 1; min-width: 160px; }
.header-actions { display: flex; gap: 8px; margin-left: auto; }
.icon-btn { background: var(--bg); border: 1px solid var(--border); border-radius: 8px; width: 38px; height: 38px; cursor: pointer; font-size: 1.1rem; color: var(--text); }
.main-nav { display: flex; gap: 4px; margin-top: 12px; flex-wrap: wrap; }
.main-nav a { padding: 8px 14px; border-radius: 8px; color: var(--text); font-weight: 500; font-size: .92rem; }
.main-nav a:hover { background: var(--bg); text-decoration: none; }
.main-nav a.active { background: var(--primary); color: #fff; }
.nav-toggle { display: none; }

/* Hero */
.hero { background: linear-gradient(135deg, var(--primary) 0%, #4f46e5 100%); color: #fff; padding: 56px 20px; text-align: center; }
.hero-inner { max-width: 720px; margin: 0 auto; }
.hero-title { font-size: clamp(1.6rem, 4vw, 2.6rem); margin: 0 0 12px; }
.hero-accent { color: #fbbf24; }
.hero-sub { font-size: 1.1rem; opacity: .95; margin: 0 0 24px; }
.hero-search { display: flex; gap: 10px; max-width: 560px; margin: 0 auto; flex-wrap: wrap; justify-content: center; }
.hero-search input[type="text"] {
    flex: 1; min-width: 220px; padding: 14px 18px; border: none; border-radius: 10px;
    font-size: 1.05rem; box-shadow: 0 4px 20px rgba(0,0,0,.2);
}
.hero-search button { padding: 14px 28px; border: none; border-radius: 10px; background: var(--accent); color: #fff; font-size: 1.05rem; font-weight: 700; cursor: pointer; }
.hero-search button:hover { background: var(--accent-dark); }
.hero-hint { margin-top: 14px; font-size: .9rem; opacity: .9; }

/* Sections */
.home-section { margin-top: 40px; }
.section-title { font-size: 1.4rem; margin-bottom: 18px; color: var(--text); }
.sub-title { font-size: 1.05rem; color: var(--muted); margin: 0 0 10px; }
.category-grid, .card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
.category-card, .card {
    background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 20px; box-shadow: var(--shadow); display: block; color: var(--text);
}
.category-card:hover { text-decoration: none; border-color: var(--primary); transform: translateY(-2px); }
.cat-icon { font-size: 2rem; display: block; margin-bottom: 8px; }
.cat-title { margin: 0 0 6px; font-size: 1.05rem; }
.cat-text { margin: 0; color: var(--muted); font-size: .88rem; }

/* Chips */
.chip-grid { display: flex; flex-wrap: wrap; gap: 10px; }
.chip { background: var(--bg-card); border: 1px solid var(--border); border-radius: 30px; padding: 8px 16px; display: inline-flex; gap: 8px; align-items: center; font-weight: 600; color: var(--text); }
.chip:hover { border-color: var(--primary); text-decoration: none; }
.chip-code { background: var(--primary); color: #fff; border-radius: 30px; padding: 2px 10px; font-size: .8rem; }
.chip-label { font-size: .9rem; }

/* Link list */
.link-list { list-style: none; padding: 0; margin: 0; columns: 2; column-gap: 20px; }
.link-list li { margin-bottom: 6px; break-inside: avoid; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

/* KFZ search result */
.kfz-card { display: flex; flex-direction: column; gap: 4px; }
.kfz-code { font-size: 1.8rem; font-weight: 800; color: var(--primary); letter-spacing: 2px; }
.kfz-meta { color: var(--muted); font-size: .9rem; }

/* Breadcrumbs */
.breadcrumbs { font-size: .85rem; color: var(--muted); margin-bottom: 20px; }
.breadcrumbs a { color: var(--primary); }
.bc-sep { margin: 0 6px; }

/* Tables */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: .9rem; }
th { color: var(--muted); font-weight: 600; }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-weight: 600; margin-bottom: 6px; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 11px 14px; border: 1px solid var(--border); border-radius: 8px;
    font-size: 1rem; background: var(--bg-card); color: var(--text);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: 2px solid var(--primary); outline-offset: -1px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-hint { font-size: .8rem; color: var(--muted); margin-top: 4px; }
.btn {
    display: inline-block; padding: 11px 22px; background: var(--primary); color: #fff; border: none;
    border-radius: 8px; font-size: .95rem; font-weight: 600; cursor: pointer; text-decoration: none;
}
.btn:hover { background: var(--primary-dark); text-decoration: none; }
.btn-success { background: var(--accent); }
.btn-success:hover { background: var(--accent-dark); }
.btn-block { display: block; width: 100%; text-align: center; }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-sm { padding: 7px 14px; font-size: .82rem; }

/* Alerts */
.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; font-size: .92rem; border: 1px solid transparent; }
.alert-success { background: #ecfdf5; color: #065f46; border-color: #a7f3d0; }
.alert-danger { background: #fef2f2; color: #991b1b; border-color: #fecaca; }
.alert-warning { background: #fffbeb; color: #92400e; border-color: #fde68a; }

/* Empty state */
.empty-state { color: var(--muted); text-align: center; padding: 30px; }

/* Footer */
.site-footer { background: var(--bg-card); border-top: 1px solid var(--border); padding: 24px 0; margin-top: 40px; }
.site-footer .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.site-footer p { margin: 0; color: var(--muted); font-size: .85rem; }
.site-footer nav { display: flex; gap: 16px; font-size: .85rem; }

/* Info grid on detail pages */
.info-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin: 20px 0; }
.info-item { background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px; padding: 12px 14px; }
.info-label { font-size: .78rem; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.info-value { font-size: 1.1rem; font-weight: 700; margin-top: 2px; }

/* Badge */
.badge { display: inline-block; padding: 3px 10px; border-radius: 30px; font-size: .75rem; font-weight: 700; }
.badge-aktiv { background: #ecfdf5; color: #065f46; }
.badge-auslaufend { background: #fef2f2; color: #991b1b; }

/* Responsive */
@media (max-width: 720px) {
    .nav-toggle { display: inline-block; }
    .main-nav { display: none; flex-direction: column; width: 100%; }
    .main-nav.open { display: flex; }
    .two-col { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .link-list { columns: 1; }
    .tagline { display: none; }
}