/* ==========================================================================
   DigitalCheck24 – Design-System (style.css)
   ==========================================================================
   Zentrales, generisches Design-System für alle Seiten der Plattform.
   Reines CSS3 ohne externe Abhängigkeiten (keine Frameworks, keine CDNs,
   keine Webfonts – moderner System-Font-Stack).

   Inhaltsverzeichnis:
   01. Design-Tokens (CSS Custom Properties)
   02. Reset & Basis
   03. Typografie
   04. Layout & Container
   05. Header & Navigation (Sticky, Mobile-Menü)
   06. Buttons
   07. Badges & Trust-Badges
   08. Karten (card, feature-card, category-card)
   09. Sektionen
   10. Hero
   11. Vergleichstabellen & Ratings
   12. Bewertungsboxen, Score-Balken, Pro/Contra
   13. FAQ-Akkordeon
   14. Footer
   15. Utilities & Grid
   16. Scroll-Reveal-Animationen
   17. Responsive Media Queries
   ========================================================================== */


/* ==========================================================================
   01. DESIGN-TOKENS
   ========================================================================== */
:root {
  /* Farben – Primär */
  --color-primary: #2563eb;          /* Haupt-Blau */
  --color-primary-dark: #1d4ed8;     /* Hover-Blau */
  --color-primary-light: #dbeafe;    /* Helles Blau (Hintergründe) */
  --color-primary-lighter: #eff6ff;  /* Sehr helles Blau */

  /* Farben – Neutral (Grautöne) */
  --color-white: #ffffff;
  --color-gray-50: #f8fafc;
  --color-gray-100: #f1f5f9;
  --color-gray-200: #e2e8f0;
  --color-gray-300: #cbd5e1;
  --color-gray-500: #64748b;         /* Sekundärtext */
  --color-gray-700: #334155;
  --color-gray-800: #1e293b;         /* Fließtext dunkel */
  --color-gray-900: #0f172a;         /* Überschriften / Footer */

  /* Farben – Semantisch */
  --color-success: #16a34a;          /* Grün (Vorteile, Top-Ratings) */
  --color-success-light: #dcfce7;
  --color-warning: #d97706;          /* Gelb/Orange (mittlere Ratings) */
  --color-warning-light: #fef3c7;
  --color-danger: #dc2626;           /* Rot (Nachteile, schwache Ratings) */
  --color-danger-light: #fee2e2;
  --color-info-light: #e0f2fe;

  /* Abstände (Spacing-Skala) */
  --space-xs: 0.5rem;     /* 8px */
  --space-sm: 0.75rem;    /* 12px */
  --space-md: 1rem;       /* 16px */
  --space-lg: 1.5rem;     /* 24px */
  --space-xl: 2rem;       /* 32px */
  --space-2xl: 3rem;      /* 48px */
  --space-3xl: 4rem;      /* 64px */
  --space-4xl: 6rem;      /* 96px */

  /* Radien */
  --radius-sm: 6px;
  --radius-md: 10px;      /* Buttons */
  --radius-lg: 16px;      /* Karten */
  --radius-full: 999px;   /* Pills / Badges */

  /* Schatten (sanft, dezent) */
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 10px 28px rgba(15, 23, 42, 0.12);
  --shadow-focus: 0 0 0 3px rgba(37, 99, 235, 0.25);

  /* Typografie – System-Font-Stack (kein Google Fonts) */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, "Noto Sans", sans-serif,
    "Apple Color Emoji", "Segoe UI Emoji";
  --font-size-base: 1rem;        /* 16px */
  --line-height-base: 1.7;       /* Großzügiger Zeilenabstand */
  --line-height-heading: 1.25;

  /* Layout */
  --container-max: 1200px;
  --header-height: 72px;

  /* Übergänge */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;

  /* Breakpoints (Referenz für Media Queries unten) */
  --bp-laptop: 1024px;
  --bp-tablet: 768px;
  --bp-mobile: 640px;

  /* Z-Index-Skala */
  --z-header: 100;
  --z-mobile-menu: 110;
  --z-overlay: 120;
}


/* ==========================================================================
   02. RESET & BASIS
   ========================================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-gray-800);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img,
svg {
  max-width: 100%;
  height: auto;
  vertical-align: middle;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
}

ul,
ol {
  list-style: none;
}

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  background: none;
  border: none;
}

/* Fokus-Styling für Barrierefreiheit */
:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
  border-radius: var(--radius-sm);
}

/* Sprunglink für Screenreader/Keyboard-User */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-md);
  z-index: var(--z-overlay);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-md);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-md);
  color: var(--color-white);
}


/* ==========================================================================
   03. TYPOGRAFIE
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-gray-900);
  font-weight: 700;
  line-height: var(--line-height-heading);
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 4.5vw, 3.25rem); }
h2 { font-size: clamp(1.625rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p {
  margin-bottom: var(--space-md);
}

p:last-child {
  margin-bottom: 0;
}

.lead,
.section-subtitle {
  font-size: 1.125rem;
  color: var(--color-gray-500);
}

strong {
  font-weight: 600;
  color: var(--color-gray-900);
}

.text-muted {
  color: var(--color-gray-500);
}


/* ==========================================================================
   04. LAYOUT & CONTAINER
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-lg);
}

/* Schmaler Container für Textseiten (Impressum, Datenschutz etc.) */
.container-narrow {
  max-width: 800px;
}


/* ==========================================================================
   05. HEADER & NAVIGATION
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background-color: rgba(255, 255, 255, 0.9);
  /* Dezenter Glassmorphism-Effekt */
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--color-gray-200);
  transition: box-shadow var(--transition-base);
}

/* Wird per JS beim Scrollen gesetzt (siehe script.js) */
.site-header.is-scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  min-height: var(--header-height);
}

/* Text-Logo: „DigitalCheck“ dunkel, „24“ in Blau */
.logo {
  font-size: 1.375rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-gray-900);
  white-space: nowrap;
}

.logo:hover {
  color: var(--color-gray-900);
}

.logo-accent {
  color: var(--color-primary);
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-link {
  position: relative;
  padding: var(--space-xs) 0;
  font-weight: 500;
  font-size: 0.9375rem;
  color: var(--color-gray-700);
}

.nav-link:hover {
  color: var(--color-primary);
}

/* Unterstrich-Indikator für Hover & aktive Seite */
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: var(--radius-full);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-fast);
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
}

/* Aktive Seite – wird per JS via location.pathname gesetzt */
.nav-link.active {
  color: var(--color-primary);
  font-weight: 600;
}

.nav-cta {
  flex-shrink: 0;
}

/* Burger-Button (nur mobil sichtbar) */
.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-radius: var(--radius-md);
}

.burger-line {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-gray-800);
  border-radius: var(--radius-full);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* Animierung zum „X“, wenn Menü offen */
.burger.is-open .burger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.burger.is-open .burger-line:nth-child(2) {
  opacity: 0;
}

.burger.is-open .burger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobiles Menü (Slide-Down unter dem Header) */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  z-index: var(--z-mobile-menu);
  background-color: var(--color-white);
  padding: var(--space-xl) var(--space-lg);
  overflow-y: auto;
  transform: translateY(-8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base),
              transform var(--transition-base),
              visibility var(--transition-base);
}

.mobile-menu.is-open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.mobile-menu .nav-links {
  flex-direction: column;
  align-items: stretch;
  gap: var(--space-xs);
}

.mobile-menu .nav-link {
  display: block;
  padding: var(--space-md);
  font-size: 1.125rem;
  border-radius: var(--radius-md);
}

.mobile-menu .nav-link::after {
  display: none;
}

.mobile-menu .nav-link:hover,
.mobile-menu .nav-link.active {
  background-color: var(--color-gray-100);
  color: var(--color-primary);
}

.mobile-menu .btn {
  width: 100%;
  margin-top: var(--space-lg);
  justify-content: center;
}

/* Scroll-Sperre, wenn mobiles Menü offen ist */
body.menu-open {
  overflow: hidden;
}


/* ==========================================================================
   06. BUTTONS
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  font-size: 0.9375rem;
  line-height: 1.4;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  transition: background-color var(--transition-fast),
              color var(--transition-fast),
              border-color var(--transition-fast),
              box-shadow var(--transition-fast),
              transform var(--transition-fast);
}

.btn:active {
  transform: translateY(1px);
}

/* Primärer Button (kräftiges Blau) */
.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

/* Sekundärer Button (dezent grau) */
.btn-secondary {
  background-color: var(--color-gray-100);
  color: var(--color-gray-800);
}

.btn-secondary:hover {
  background-color: var(--color-gray-200);
  color: var(--color-gray-900);
}

/* Outline-Button (transparent mit Rand) */
.btn-outline {
  background-color: transparent;
  border-color: var(--color-gray-300);
  color: var(--color-gray-700);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background-color: var(--color-primary-lighter);
}

/* Größenvarianten */
.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.0625rem;
}

.btn-block {
  width: 100%;
}

/* Icon innerhalb von Buttons */
.btn svg {
  width: 1.125em;
  height: 1.125em;
  flex-shrink: 0;
}


/* ==========================================================================
   07. BADGES & TRUST-BADGES
   ========================================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.75rem;
  font-size: 0.8125rem;
  font-weight: 600;
  line-height: 1.5;
  border-radius: var(--radius-full);
  background-color: var(--color-gray-100);
  color: var(--color-gray-700);
  white-space: nowrap;
}

.badge-primary {
  background-color: var(--color-primary-light);
  color: var(--color-primary-dark);
}

.badge-success {
  background-color: var(--color-success-light);
  color: var(--color-success);
}

.badge-warning {
  background-color: var(--color-warning-light);
  color: var(--color-warning);
}

/* Vertrauens-Badges (z. B. unter dem Hero) */
.trust-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md) var(--space-xl);
}

.trust-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-gray-700);
}

.trust-badge svg {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--color-success);
  flex-shrink: 0;
}


/* ==========================================================================
   08. KARTEN
   ========================================================================== */
/* Basis-Karte */
.card {
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base),
              transform var(--transition-base),
              border-color var(--transition-base);
}

/* Hover-Lift für interaktive Karten */
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-gray-300);
}

/* Feature-Karte (z. B. „Warum DigitalCheck24?“) */
.feature-card {
  text-align: left;
}

.feature-card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-bottom: var(--space-lg);
  border-radius: var(--radius-md);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

.feature-card-icon svg {
  width: 26px;
  height: 26px;
}

.feature-card h3 {
  margin-bottom: var(--space-sm);
  font-size: 1.25rem;
}

.feature-card p {
  color: var(--color-gray-500);
  font-size: 0.9375rem;
}

/* Kategorie-Karte (z. B. „Beliebte Kategorien“) */
.category-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.category-card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background-color: var(--color-primary-lighter);
  color: var(--color-primary);
}

.category-card-icon svg {
  width: 28px;
  height: 28px;
}

.category-card h3 {
  font-size: 1.375rem;
}

.category-card p {
  color: var(--color-gray-500);
  flex-grow: 1;
}

.category-card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-weight: 600;
  color: var(--color-primary);
}

.category-card-link svg {
  width: 1rem;
  height: 1rem;
  transition: transform var(--transition-fast);
}

.category-card-link:hover svg {
  transform: translateX(4px);
}


/* ==========================================================================
   09. SEKTIONEN
   ========================================================================== */
.section {
  padding-block: var(--space-4xl);
}

/* Alternierende Sektion mit grauem Hintergrund */
.section-alt {
  background-color: var(--color-gray-50);
}

.section-header {
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: var(--space-3xl);
  text-align: center;
}

.section-title {
  margin-bottom: var(--space-md);
}

.section-subtitle {
  margin-bottom: 0;
}


/* ==========================================================================
   10. HERO
   ========================================================================== */
.hero {
  position: relative;
  padding-block: var(--space-4xl);
  background-color: var(--color-gray-50);
  /* Feines, dezentes Punkt-Muster (rein CSS, keine Grafikdatei) */
  background-image: radial-gradient(var(--color-gray-200) 1px, transparent 1px);
  background-size: 24px 24px;
  overflow: hidden;
}

.hero-inner {
  max-width: 760px;
  margin-inline: auto;
  text-align: center;
}

.hero-title {
  margin-bottom: var(--space-lg);
}

.hero-subtitle {
  max-width: 560px;
  margin-inline: auto;
  margin-bottom: var(--space-xl);
  font-size: 1.1875rem;
  color: var(--color-gray-500);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.hero .trust-badges {
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-gray-200);
}


/* ==========================================================================
   11. VERGLEICHSTABELLEN & RATINGS
   ========================================================================== */
/* Wrapper für horizontales Scrollen auf kleinen Bildschirmen */
.table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
  -webkit-overflow-scrolling: touch;
}

.comparison-table {
  width: 100%;
  min-width: 720px; /* Erzwingt Scrollen auf kleinen Screens */
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.comparison-table th,
.comparison-table td {
  padding: var(--space-md) var(--space-lg);
  text-align: left;
  border-bottom: 1px solid var(--color-gray-200);
  vertical-align: middle;
}

.comparison-table thead th {
  background-color: var(--color-gray-50);
  font-weight: 600;
  color: var(--color-gray-700);
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.comparison-table tbody tr {
  transition: background-color var(--transition-fast);
}

.comparison-table tbody tr:hover {
  background-color: var(--color-primary-lighter);
}

.comparison-table tbody tr:last-child td {
  border-bottom: none;
}

/* Optional: Erste Spalte sticky beim horizontalen Scrollen */
.comparison-table.sticky-first-col th:first-child,
.comparison-table.sticky-first-col td:first-child {
  position: sticky;
  left: 0;
  background-color: var(--color-white);
  box-shadow: 1px 0 0 var(--color-gray-200);
}

.comparison-table.sticky-first-col thead th:first-child {
  background-color: var(--color-gray-50);
}

/* Hervorgehobene Zeile (Testsieger) */
.comparison-table .row-winner {
  background-color: var(--color-primary-lighter);
}

/* Produkt-Zelle (Logo-Platzhalter + Name) */
.product-cell {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-weight: 600;
  color: var(--color-gray-900);
}

.product-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  background-color: var(--color-gray-100);
  border: 1px solid var(--color-gray-200);
  font-weight: 700;
  color: var(--color-primary);
  overflow: hidden;
}

.product-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* Noten-Badge, farbcodiert (Klassen per JS oder statisch setzen):
   .rating--excellent (>= 9.0, grün)
   .rating--good      (8.0–8.9, gelb)
   .rating--average   (< 8.0, rot) */
.rating {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 3rem;
  padding: 0.25rem 0.625rem;
  font-weight: 700;
  font-size: 0.9375rem;
  border-radius: var(--radius-sm);
  background-color: var(--color-success-light);
  color: var(--color-success);
}

.rating--excellent {
  background-color: var(--color-success-light);
  color: var(--color-success);
}

.rating--good {
  background-color: var(--color-warning-light);
  color: var(--color-warning);
}

.rating--average {
  background-color: var(--color-danger-light);
  color: var(--color-danger);
}

/* Check-/Cross-Icons in Tabellen */
.check,
.cross {
  display: inline-flex;
  width: 1.25rem;
  height: 1.25rem;
}

.check {
  color: var(--color-success);
}

.cross {
  color: var(--color-danger);
}


/* ==========================================================================
   12. BEWERTUNGSBOXEN, SCORE-BALKEN, PRO/CONTRA
   ========================================================================== */
/* Bewertungsbox (Detail-Review eines Produkts) */
.review-box {
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
}

.review-box-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-gray-200);
}

.review-box-title {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.review-box-title h3 {
  margin-bottom: 0;
}

/* Fortschrittsbalken (z. B. Geschwindigkeit 95 %) */
.score-bar {
  margin-bottom: var(--space-md);
}

.score-bar:last-child {
  margin-bottom: 0;
}

.score-bar-label {
  display: flex;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-xs);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-gray-700);
}

.score-bar-value {
  font-weight: 700;
  color: var(--color-gray-900);
}

.score-bar-track {
  height: 8px;
  border-radius: var(--radius-full);
  background-color: var(--color-gray-100);
  overflow: hidden;
}

.score-bar-fill {
  height: 100%;
  border-radius: var(--radius-full);
  background-color: var(--color-primary);
  /* Breite per style="width:X%" oder data-Attribut setzen */
  transition: width 0.6s ease;
}

/* Farbvarianten der Balken */
.score-bar-fill.is-high { background-color: var(--color-success); }
.score-bar-fill.is-mid { background-color: var(--color-warning); }
.score-bar-fill.is-low { background-color: var(--color-danger); }

/* Vorteile/Nachteile-Listen */
.pros-cons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}

.pros-cons h4 {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.pros-list li,
.cons-list li {
  position: relative;
  padding-left: 1.75rem;
  margin-bottom: var(--space-sm);
  font-size: 0.9375rem;
  color: var(--color-gray-700);
}

.pros-list li::before,
.cons-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.2em;
  width: 1.125rem;
  height: 1.125rem;
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
}

/* Häkchen-Icon (grün) als eingebettetes SVG – kein externes Asset nötig */
.pros-list li::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2316a34a' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E");
}

/* Kreuz-Icon (rot) */
.cons-list li::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23dc2626' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M18 6 6 18M6 6l12 12'/%3E%3C/svg%3E");
}


/* ==========================================================================
   13. FAQ-AKKORDEON
   ========================================================================== */
.faq-list {
  max-width: 800px;
  margin-inline: auto;
}

.faq-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-md);
  overflow: hidden;
  transition: border-color var(--transition-fast),
              box-shadow var(--transition-fast);
}

.faq-item.is-open {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  width: 100%;
  padding: var(--space-lg) var(--space-xl);
  font-weight: 600;
  font-size: 1.0625rem;
  text-align: left;
  color: var(--color-gray-900);
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--color-primary);
}

/* Chevron-Icon, dreht sich bei geöffnetem Item */
.faq-icon {
  display: inline-flex;
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  color: var(--color-gray-500);
  transition: transform var(--transition-base), color var(--transition-fast);
}

.faq-item.is-open .faq-icon {
  transform: rotate(180deg);
  color: var(--color-primary);
}

/* Antwortbereich – Höhe wird per JS animiert (max-height Transition) */
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.faq-answer-inner {
  padding: 0 var(--space-xl) var(--space-lg);
  color: var(--color-gray-500);
}


/* ==========================================================================
   14. FOOTER
   ========================================================================== */
.site-footer {
  background-color: var(--color-gray-900);
  color: var(--color-gray-300);
  padding-top: var(--space-3xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-2xl);
  padding-bottom: var(--space-2xl);
}

.footer-brand .logo {
  color: var(--color-white);
  margin-bottom: var(--space-md);
  display: inline-block;
}

.footer-brand p {
  font-size: 0.9375rem;
  color: var(--color-gray-300);
  max-width: 34ch;
}

.footer-heading {
  color: var(--color-white);
  font-size: 0.9375rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-md);
}

.footer-links li {
  margin-bottom: var(--space-sm);
}

.footer-links a {
  color: var(--color-gray-300);
  font-size: 0.9375rem;
}

.footer-links a:hover {
  color: var(--color-white);
}

/* Untere Footer-Leiste */
.footer-bottom {
  padding-block: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-gray-500);
}

.footer-bottom p + p {
  margin-top: var(--space-xs);
}

.footer-disclaimer {
  max-width: 720px;
  margin-inline: auto;
}


/* ==========================================================================
   15. UTILITIES & GRID
   ========================================================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-lg { margin-top: var(--space-lg); }
.mb-lg { margin-bottom: var(--space-lg); }
.hidden { display: none !important; }

/* Generische Grids – Spalten rücken auf kleinen Screens zusammen */
.grid-2,
.grid-3,
.grid-4 {
  display: grid;
  gap: var(--space-xl);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }


/* ==========================================================================
   16. SCROLL-REVEAL-ANIMATIONEN
   ========================================================================== */
/* Elemente mit .reveal werden per IntersectionObserver sichtbar (.visible).
   Fallback ohne JS: Elemente sind standardmäßig sichtbar, weil .reveal erst
   per JS als „aktiv“ markiert wird (siehe script.js, Klasse .reveal-ready). */
.reveal-ready .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
  will-change: opacity, transform;
}

.reveal-ready .reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Respektiert die Systemeinstellung „Bewegung reduzieren“ */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal-ready .reveal {
    opacity: 1;
    transform: none;
  }
}


/* ==========================================================================
   17. RESPONSIVE MEDIA QUERIES
   ========================================================================== */

/* Laptop / kleine Desktops (<= 1024px) */
@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

/* Tablet (<= 768px) */
@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  /* Desktop-Navigation ausblenden, Burger einblenden */
  .site-header .nav-links,
  .site-header .nav-cta {
    display: none;
  }

  .burger {
    display: flex;
  }

  .mobile-menu {
    display: block;
  }

  .section {
    padding-block: var(--space-3xl);
  }

  .pros-cons {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
}

/* Smartphone (<= 640px) */
@media (max-width: 640px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .trust-badges {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
    text-align: left;
  }

  .card,
  .review-box {
    padding: var(--space-lg);
  }

  .faq-question {
    padding: var(--space-md) var(--space-lg);
    font-size: 1rem;
  }

  .faq-answer-inner {
    padding: 0 var(--space-lg) var(--space-md);
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
}


/* ==========================================================================
   18. KONTAKTFORMULAR
   ==========================================================================
   Formular-Komponenten für die Kontaktseite (kontakt.html).
   Nutzt ausschließlich vorhandene Design-Tokens (Farben, Abstände, Radien,
   Schatten) und fügt sich nahtlos in das Design-System ein.
   ========================================================================== */
.contact-form {
  max-width: 640px;
}

/* Umschließt Label + Feld */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--color-gray-900);
}

/* Pflichtfeld-Markierung */
.form-label .required {
  color: var(--color-danger);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--color-gray-800);
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast),
              box-shadow var(--transition-fast);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-gray-500);
  opacity: 0.7;
}

.form-input:hover,
.form-textarea:hover {
  border-color: var(--color-gray-500);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-focus);
}

/* HTML5-Validierung: ungültige, bereits berührte Felder markieren */
.form-input:not(:placeholder-shown):invalid,
.form-textarea:not(:placeholder-shown):invalid {
  border-color: var(--color-danger);
}

.form-textarea {
  min-height: 160px;
  resize: vertical;
}

/* Checkbox-Zeile (z. B. Datenschutz-Einwilligung) */
.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: 0.9375rem;
  color: var(--color-gray-700);
}

.form-checkbox input[type="checkbox"] {
  width: 1.125rem;
  height: 1.125rem;
  margin-top: 0.2em;
  flex-shrink: 0;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.form-checkbox label {
  cursor: pointer;
}

/* Kleiner Hinweistext unter einem Feld */
.form-hint {
  display: block;
  margin-top: var(--space-xs);
  font-size: 0.8125rem;
  color: var(--color-gray-500);
}


/* ==========================================================================
   18. SEITEN-SPEZIFISCHE ERGÄNZUNGEN: VPN-VERGLEICH (vpn-vergleich.html)
   Nur hier benötigte Layout-Details – nutzt ausschließlich vorhandene Tokens.
   ========================================================================== */
/* Vertikaler Abstand zwischen den Detail-Bewertungsboxen */
.review-grid {
  display: grid;
  gap: var(--space-2xl);
}

/* Zweispaltiges Innenleben der Review-Box: links Text/Pro-Contra, rechts Noten */
.review-box-body {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: var(--space-2xl);
  align-items: start;
}

/* Detailbewertung als dezente Sidecard innerhalb der Review-Box */
.review-box-scores {
  background-color: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

.review-box-scores h4 {
  margin-bottom: var(--space-lg);
}

/* Preis-Darstellung in der Vergleichstabelle */
.price {
  font-weight: 700;
  color: var(--color-gray-900);
  white-space: nowrap;
}

.price-note {
  display: block;
  font-size: 0.8125rem;
  color: var(--color-gray-500);
}

/* Hinweiszeile unter der Vergleichstabelle */
.table-note {
  margin-top: var(--space-md);
  font-size: 0.8125rem;
  color: var(--color-gray-500);
}

/* Badge unter dem Anbieternamen in der Tabelle */
.product-cell .badge {
  margin-top: var(--space-xs);
}

@media (max-width: 1024px) {
  .review-box-body {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
}


/* ==========================================================================
   19. TEXTSEITEN (Rechtsseiten: Impressum, Datenschutz)
   ==========================================================================
   Ergänzende Styles für Fließtext-Unterseiten mit .container-narrow.
   Der globale Reset entfernt Listen-Punkte – für Aufzählungen in
   Rechtstexten gibt es daher die Utility-Klasse .list-disc.
   ========================================================================== */
.list-disc {
  list-style: disc;
  padding-left: var(--space-xl);
  margin-bottom: var(--space-md);
}

.list-disc li {
  margin-bottom: var(--space-xs);
  color: var(--color-gray-700);
}

/* Abschnitts-Abstände auf Textseiten */
.container-narrow h2 {
  margin-bottom: var(--space-md);
}

.container-narrow h3 {
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
}