/* ==========================================================================
   style.css – Zentrales Stylesheet für gebäudeversicherung24.eu
   100 % DSGVO-konform (System-Schriften), BFSG-barrierefrei, Ultra-Fast
   ========================================================================== */
:root {
  --bg-body: #f8fafc;
  --bg-surface: #ffffff;
  --bg-subtle: #f1f5f9;
  --bg-navy: #0f172a;
  --bg-navy-light: #1e293b;

  --text-main: #0f172a;
  --text-muted: #475569;

  --primary: #1d4ed8;
  --primary-hover: #1e40af;
  --primary-soft: #eff6ff;
  --primary-border: #bfdbfe;

  --accent-green: #047857;
  --accent-green-hover: #065f46;
  --accent-green-soft: #ecfdf5;
  --accent-green-border: #6ee7b7;

  --whatsapp-green: #128c7e;
  --whatsapp-hover: #075e54;

  --amber-bg: #fffbeb;
  --amber-border: #fde68a;
  --amber-text: #92400e;

  --danger: #b91c1c;
  --danger-bg: #fef2f2;
  --danger-border: #fecaca;

  --border-color: #cbd5e1;
  --border-focus: #2563eb;

  --radius-sm: 0.5rem;
  --radius-md: 0.875rem;
  --radius-lg: 1.25rem;

  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.07);
  --shadow-md: 0 10px 25px -5px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 35px -10px rgba(15, 23, 42, 0.14);

  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --max-width: 1240px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

:focus-visible {
  outline: 3px solid var(--border-focus);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--bg-navy);
  color: #fff;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  font-weight: 700;
  z-index: 9999;
  text-decoration: none;
}
.skip-link:focus {
  top: 1rem;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header & Hauptnavigation */
.site-header {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4.75rem;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 0.5rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: var(--text-main);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.brand-icon {
  width: 2.4rem;
  height: 2.4rem;
  background: linear-gradient(135deg, var(--primary), var(--accent-green));
  color: #fff;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.brand span {
  color: var(--primary);
}

.main-nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.15rem;
  align-items: center;
}

.main-nav a {
  text-decoration: none;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.94rem;
  padding: 0.4rem 0.2rem;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

/* Buttons & Badges */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: inherit;
  font-weight: 700;
  font-size: 0.96rem;
  padding: 0.8rem 1.35rem;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s ease;
  line-height: 1.25;
}

.btn-primary {
  background-color: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background-color: var(--primary-hover);
}

.btn-fastlane {
  background-color: var(--accent-green);
  color: #fff;
  box-shadow: 0 4px 12px rgba(4, 120, 87, 0.22);
}
.btn-fastlane:hover {
  background-color: var(--accent-green-hover);
}

.btn-whatsapp {
  background-color: var(--whatsapp-green);
  color: #fff;
  width: 100%;
  font-size: 1.05rem;
  padding: 1rem 1.5rem;
}
.btn-whatsapp:hover {
  background-color: var(--whatsapp-hover);
}

.btn-outline {
  background-color: #fff;
  border-color: var(--border-color);
  color: var(--text-main);
}
.btn-outline:hover {
  background-color: var(--bg-subtle);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background-color: var(--amber-bg);
  color: var(--amber-text);
  font-weight: 700;
  font-size: 0.82rem;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  margin-bottom: 1rem;
  border: 1px solid var(--amber-border);
}

.badge-green {
  background-color: var(--accent-green-soft);
  color: var(--accent-green);
  border-color: var(--accent-green-border);
}

/* Hero & Page Headers */
.hero-section {
  padding: 2.5rem 0 4rem;
  background: radial-gradient(circle at top right, #e0f2fe 0%, #f8fafc 58%);
  border-bottom: 1px solid var(--border-color);
}

.page-hero {
  padding: 3rem 0;
  background: linear-gradient(180deg, #eff6ff 0%, #f8fafc 100%);
  border-bottom: 1px solid var(--border-color);
}

.page-hero-danger {
  background: linear-gradient(180deg, #fef2f2 0%, #f8fafc 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: start;
}

@media (min-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1.05fr 1.15fr;
    gap: 3.25rem;
  }
}

.hero-title {
  font-size: clamp(1.85rem, 3.4vw, 2.7rem);
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--bg-navy);
  margin-bottom: 1.1rem;
}

.hero-title mark {
  background: linear-gradient(120deg, #bbf7d0 0%, #bbf7d0 100%);
  background-repeat: no-repeat;
  background-size: 100% 38%;
  background-position: 0 85%;
  color: inherit;
  padding: 0 0.15rem;
}

.hero-lead {
  font-size: 1.12rem;
  color: var(--text-muted);
  margin-bottom: 1.65rem;
}

/* Sektionen & Raster */
.section {
  padding: 4rem 0;
}

.section-alt {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.section-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 2.75rem;
}

.section-header h2 {
  font-size: clamp(1.55rem, 2.6vw, 2.2rem);
  font-weight: 800;
  color: var(--bg-navy);
  margin-bottom: 0.7rem;
  letter-spacing: -0.02em;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.grid-2, .grid-3, .grid-4 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 680px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* Baustein- & Feature-Karten */
.baustein-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.65rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  position: relative;
}

.baustein-card.highlight {
  border: 2px solid var(--accent-green);
  background: linear-gradient(180deg, #f0fdf4 0%, #ffffff 35%);
}

.baustein-tag {
  align-self: flex-start;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.2rem 0.6rem;
  border-radius: 99px;
  background: var(--primary-soft);
  color: var(--primary);
}

.baustein-tag.tag-green {
  background: var(--accent-green-soft);
  color: var(--accent-green);
}

.baustein-tag.tag-amber {
  background: var(--amber-bg);
  color: var(--amber-text);
}

.baustein-card h3 {
  font-size: 1.18rem;
  font-weight: 800;
  color: var(--bg-navy);
}

.baustein-card p {
  font-size: 0.94rem;
  color: var(--text-muted);
}

.check-list {
  list-style: none;
  display: grid;
  gap: 0.5rem;
  margin-top: 0.35rem;
  font-size: 0.92rem;
}

.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
}

.check-list li::before {
  content: "✓";
  font-weight: 900;
  color: var(--accent-green);
  flex-shrink: 0;
}

.cross-list li::before {
  content: "✕";
  color: var(--danger);
}

/* 3-Schritte Liste */
.steps-list {
  list-style: none;
  display: grid;
  gap: 0.9rem;
  margin-bottom: 1.75rem;
}

.step-item {
  display: flex;
  align-items: flex-start;
  gap: 0.95rem;
  background: var(--bg-surface);
  padding: 0.95rem 1.15rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.step-number {
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 50%;
  background: var(--accent-green-soft);
  color: var(--accent-green);
  font-weight: 800;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  border: 1px solid var(--accent-green-border);
}

/* Conversion Card & Tabs */
.conversion-card {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.tablist-nav {
  display: grid;
  grid-template-columns: 1fr;
  background: var(--bg-subtle);
  border-bottom: 1px solid var(--border-color);
  padding: 0.4rem;
  gap: 0.35rem;
}

@media (min-width: 580px) {
  .tablist-nav {
    grid-template-columns: repeat(3, 1fr);
  }
}

.tab-btn {
  appearance: none;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.6rem;
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 0.2rem;
}

.tab-btn[aria-selected="true"] {
  background: var(--bg-surface);
  color: var(--text-main);
  border-color: var(--border-color);
  box-shadow: var(--shadow-sm);
}

.tab-btn[aria-selected="true"].tab-fastlane {
  border-color: var(--accent-green);
  color: var(--accent-green);
}

.tab-sublabel {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.1rem 0.45rem;
  border-radius: 99px;
  background: var(--accent-green-soft);
  color: var(--accent-green);
}

.tab-panel {
  padding: 1.5rem;
}

@media (min-width: 640px) {
  .tab-panel {
    padding: 2rem;
  }
}

.tab-panel[hidden] {
  display: none !important;
}

/* Upload Dropzone */
.upload-dropzone {
  border: 2px dashed var(--accent-green);
  background: var(--accent-green-soft);
  border-radius: var(--radius-md);
  padding: 1.65rem 1.2rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  margin-bottom: 1.2rem;
}

.upload-dropzone:hover,
.upload-dropzone.drag-active {
  background: #d1fae5;
  border-color: var(--accent-green-hover);
}

.upload-icon-wrap {
  width: 3.4rem;
  height: 3.4rem;
  border-radius: 50%;
  background: #fff;
  color: var(--accent-green);
  display: grid;
  place-items: center;
  margin: 0 auto 0.75rem;
  box-shadow: var(--shadow-sm);
}

.file-input-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  overflow: hidden;
  z-index: -1;
}

.file-preview-list {
  list-style: none;
  margin-bottom: 1.2rem;
  display: grid;
  gap: 0.5rem;
}

.file-preview-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-subtle);
  padding: 0.6rem 0.9rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  border: 1px solid var(--border-color);
}

.file-remove-btn {
  background: none;
  border: none;
  color: var(--danger);
  font-weight: 700;
  cursor: pointer;
  font-size: 0.8rem;
}

/* Formular-Styling (auch für großes Angebotsformular) */
.form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 600px) {
  .form-grid-2 { grid-template-columns: repeat(2, 1fr); }
  .form-grid-3 { grid-template-columns: repeat(3, 1fr); }
  .form-grid-4 { grid-template-columns: repeat(4, 1fr); }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-main);
}

.form-label .req {
  color: var(--danger);
}

.form-hint {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.form-control {
  width: 100%;
  padding: 0.7rem 0.85rem;
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--text-main);
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
}

.form-control:focus {
  border-color: var(--border-focus);
}

.fieldset-box {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.35rem;
  margin-bottom: 1.5rem;
  background: #fcfdff;
}

.fieldset-box legend {
  font-weight: 800;
  font-size: 1.02rem;
  color: var(--primary);
  padding: 0 0.6rem;
}

.checkbox-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 0.35rem 0;
}

.pill-label {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.86rem;
  font-weight: 600;
  cursor: pointer;
}

.pill-label:has(input:checked) {
  background: var(--primary-soft);
  border-color: var(--primary);
  color: var(--primary);
}

.privacy-consent {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin: 1.15rem 0;
}

.privacy-consent input {
  margin-top: 0.2rem;
  width: 1.1rem;
  height: 1.1rem;
  flex-shrink: 0;
}

.hp-field {
  position: absolute !important;
  left: -9999px !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
}

.status-banner {
  margin-top: 1rem;
  padding: 0.95rem 1.1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.92rem;
  display: none;
}
.status-banner.success {
  display: block;
  background: var(--accent-green-soft);
  color: var(--accent-green);
  border: 1px solid var(--accent-green-border);
}
.status-banner.error {
  display: block;
  background: var(--danger-bg);
  color: var(--danger);
  border: 1px solid var(--danger-border);
}

/* Tabellen */
.comparison-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  min-width: 640px;
}

.comparison-table th,
.comparison-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.94rem;
}

.comparison-table thead th {
  background: var(--bg-navy);
  color: #fff;
  font-weight: 700;
}

.comparison-table thead th.highlight-col {
  background: var(--accent-green);
}

.comparison-table tbody td.highlight-col {
  background: #f0fdf4;
  font-weight: 600;
  color: var(--bg-navy);
}

/* Callout-Banner (z.B. für KI-Check auf Unterseiten) */
.cta-banner {
  background: linear-gradient(135deg, var(--bg-navy) 0%, #1e3a8a 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: flex-start;
  justify-content: space-between;
  box-shadow: var(--shadow-lg);
}

@media (min-width: 860px) {
  .cta-banner {
    flex-direction: row;
    align-items: center;
    padding: 3rem;
  }
}

.cta-banner h2 {
  font-size: clamp(1.4rem, 2.5vw, 1.95rem);
  margin-bottom: 0.5rem;
}

.cta-banner p {
  color: #cbd5e1;
  max-width: 620px;
}

/* FAQ Details */
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: grid;
  gap: 0.85rem;
}

.faq-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.faq-item summary {
  padding: 1.1rem 1.35rem;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  font-size: 1.4rem;
  color: var(--primary);
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-body {
  padding: 0 1.35rem 1.25rem;
  color: var(--text-muted);
  border-top: 1px solid var(--bg-subtle);
  padding-top: 0.9rem;
}

/* Footer */
.site-footer {
  background: var(--bg-navy);
  color: #cbd5e1;
  padding: 3.5rem 0 2rem;
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr;
  }
}

.site-footer h4 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 0.85rem;
}

.footer-links {
  list-style: none;
  display: grid;
  gap: 0.5rem;
}

.footer-links a {
  color: #cbd5e1;
  text-decoration: none;
}
.footer-links a:hover {
  color: #fff;
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.82rem;
}
/* Moderne Bild-Darstellung (Responsiv & Stylisch) */
.content-figure {
  margin: 1.5rem 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  box-shadow: var(--shadow-md);
}
.content-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.content-figure figcaption {
  padding: 0.65rem 1rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  background: var(--bg-subtle);
  border-top: 1px solid var(--border-color);
}
/* ==========================================================================
   Typografie & Layout für rechtliche Textseiten (Impressum, Datenschutz, AGB)
   ========================================================================== */
.legal-wrapper {
  max-width: 880px;
  margin: 0 auto;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.25rem 1.5rem;
  box-shadow: var(--shadow-sm);
}
@media (min-width: 768px) {
  .legal-wrapper {
    padding: 3.5rem 3rem;
  }
}
.legal-wrapper h2 {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--bg-navy);
  margin: 2.25rem 0 0.85rem;
  padding-bottom: 0.4rem;
  border-bottom: 2px solid var(--bg-subtle);
}
.legal-wrapper h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary);
  margin: 1.5rem 0 0.5rem;
}
.legal-wrapper p {
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.75;
  margin-bottom: 1.1rem;
}
.legal-wrapper ul, .legal-wrapper ol {
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.7;
  padding-left: 1.4rem;
  margin-bottom: 1.25rem;
  display: grid;
  gap: 0.4rem;
}
.legal-notice-box {
  background: var(--bg-subtle);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 1.25rem;
  margin: 1.5rem 0;
  font-size: 0.92rem;
}
.legal-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0;
  font-size: 0.9rem;
}
.legal-table th, .legal-table td {
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--border-color);
  text-align: left;
  vertical-align: top;
}
.legal-table th {
  background: var(--bg-subtle);
  font-weight: 700;
  color: var(--text-main);
  width: 32%;
}