/* =========================================================
   eyecontour.de / styles.css
   Zentrale, produktionsreife CSS-Datei
   ========================================================= */

/* =========================
   1. Reset / Basisregeln
   ========================= */

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

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

body,
h1,
h2,
h3,
p,
ul,
ol,
figure,
blockquote {
  margin: 0;
}

ul,
ol {
  padding: 0;
  list-style: none;
}

img,
picture,
svg {
  display: block;
  max-width: 100%;
}

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

button {
  border: 0;
  background: none;
  padding: 0;
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration: none;
}

details summary {
  list-style: none;
  cursor: pointer;
}

details summary::-webkit-details-marker {
  display: none;
}

/* =========================
   2. Farbvariablen
   ========================= */

:root {
  --color-bg: #ffffff;
  --color-surface: #ebebeb;
  --color-surface-light: #f6f6f6;
  --color-text: #313131;
  --color-text-muted: #666666;
  --color-border: #d9d9d9;
  --color-cta: #313131;
  --color-cta-hover: #1f1f1f;
  --color-white: #ffffff;

  --shadow-soft: 0 8px 24px rgba(49, 49, 49, 0.06);
  --shadow-header: 0 2px 12px rgba(49, 49, 49, 0.06);

  --container: 1200px;
  --container-wide: 1360px;
  --container-narrow: 820px;

  --space-1: 8px;
  --space-2: 12px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 48px;
  --space-7: 64px;
  --space-8: 96px;
  --space-9: 128px;

  --header-height: 80px;
  --border-radius-ui: 0;
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
}

/* =========================
   3. Typography
   ========================= */

body {
  min-width: 320px;
  font-family: Inter, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  font-weight: 400;
  color: var(--color-text);
  background: var(--color-bg);
  text-rendering: optimizeLegibility;
}

h1,
h2,
h3 {
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

h1 {
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1.06;
}

h2 {
  font-size: clamp(1.6rem, 3.4vw, 2.5rem);
  line-height: 1.15;
}

h3 {
  font-size: clamp(1.2rem, 2.2vw, 1.55rem);
  line-height: 1.25;
}

p {
  color: var(--color-text);
}

strong {
  font-weight: 600;
}

small {
  font-size: 0.875rem;
}

.eyebrow {
  display: inline-block;
  margin-bottom: var(--space-3);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.hero-subline {
  font-size: clamp(1.1rem, 2.2vw, 1.45rem);
  line-height: 1.55;
  color: var(--color-text-muted);
}

.section-heading {
  margin-bottom: var(--space-4);
}

.section-heading h2 + p,
.section-heading p {
  margin-top: var(--space-3);
}

.section-heading-centered {
  text-align: center;
}

.section-heading-centered h2 {
  max-width: 14ch;
  margin-left: auto;
  margin-right: auto;
}

/* =========================
   4. Container-System
   ========================= */

.container {
  width: min(calc(100% - 32px), var(--container));
  margin-inline: auto;
}

.container-wide {
  width: min(calc(100% - 32px), var(--container-wide));
  margin-inline: auto;
}

.container-narrow {
  width: min(calc(100% - 32px), var(--container-narrow));
  margin-inline: auto;
}

/* =========================
   5. Globale Layoutregeln
   ========================= */

main {
  overflow: clip;
}

.section {
  padding: var(--space-7) 0;
}

.section-intro {
  padding-top: var(--space-6);
}

.section-surface {
  background: var(--color-surface-light);
}

.top-space {
  margin-top: var(--space-6);
}

.top-space-small {
  margin-top: var(--space-4);
}

.skip-link {
  position: absolute;
  top: -48px;
  left: var(--space-3);
  z-index: 200;
  padding: 10px 14px;
  background: var(--color-cta);
  color: var(--color-white);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-3);
}

/* =========================
   6. Header / Navigation
   ========================= */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid transparent;
  transition:
    box-shadow var(--transition-fast),
    border-color var(--transition-fast),
    background var(--transition-fast);
}

.site-header.is-scrolled,
.site-header:hover {
  box-shadow: var(--shadow-header);
  border-color: var(--color-border);
}

.header-inner {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.site-logo {
  flex-shrink: 0;
}

.site-logo-mark {
  display: inline-block;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  color: var(--color-text);
}

.nav-toggle-label {
  font-size: 0.9375rem;
  font-weight: 600;
}

.nav-desktop {
  display: none;
}

.nav-mobile {
  position: absolute;
  top: calc(100% + 1px);
  left: 0;
  right: 0;
  display: none;
  padding: var(--space-4) 0 var(--space-5);
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
}

.nav-mobile.is-open {
  display: block;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav-list a {
  position: relative;
  font-size: 0.975rem;
  font-weight: 500;
  color: var(--color-text);
  transition: color var(--transition-fast);
}

.nav-list a:hover,
.nav-list a:focus-visible {
  color: var(--color-text-muted);
}

.nav-list a.is-active,
.nav-list a[aria-current="page"] {
  font-weight: 600;
}

.nav-list a.is-active::after,
.nav-list a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 100%;
  height: 1px;
  background: var(--color-text);
}

.nav-list-mobile {
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-3);
  width: min(calc(100% - 32px), var(--container));
  margin-inline: auto;
}

.nav-list-mobile a.is-active::after,
.nav-list-mobile a[aria-current="page"]::after {
  bottom: -4px;
}

.nav-mobile-meta {
  width: min(calc(100% - 32px), var(--container));
  margin: var(--space-5) auto 0;
  display: grid;
  gap: var(--space-4);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.language-switcher {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.language-switcher-current {
  color: var(--color-text);
}

.language-switcher-separator {
  color: var(--color-border);
}

.language-switcher-upcoming {
  opacity: 0.7;
}

.breadcrumb-nav {
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-white);
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.breadcrumb-list li {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.breadcrumb-list li:not(:last-child)::after {
  content: "/";
  color: var(--color-border);
}

.breadcrumb-list a:hover,
.breadcrumb-list a:focus-visible {
  color: var(--color-text);
}

/* =========================
   7. Hero-Bereiche
   ========================= */

.hero {
  padding: var(--space-7) 0 var(--space-6);
}

.hero-grid {
  display: grid;
  gap: var(--space-5);
  align-items: center;
}

.hero-copy {
  display: grid;
  gap: var(--space-4);
}

.hero-copy p {
  max-width: 62ch;
}

.hero-media {
  position: relative;
}

.hero-media img {
  width: 100%;
  height: auto;
  border-radius: 0;
  object-fit: cover;
  border: 0;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  align-items: stretch;
  padding-top: var(--space-2);
}

.hero-home .hero-media img,
.hero-standard .hero-media img {
  background: var(--color-surface-light);
}

/* =========================
   8. Content-Sektionen
   ========================= */

.section-copy {
  display: grid;
  gap: var(--space-4);
}

.section-copy p + p {
  margin-top: 0;
}

.section-media img {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 0;
}

.text-link-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.text-link-group a {
  font-weight: 500;
  color: var(--color-text);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.text-link-group a:hover,
.text-link-group a:focus-visible {
  color: var(--color-text-muted);
}

.inline-cta {
  margin-top: var(--space-4);
}

.benefit-list {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

.benefit-list li {
  position: relative;
  padding-left: 18px;
}

.benefit-list li::before {
  content: "";
  position: absolute;
  top: 0.78em;
  left: 0;
  width: 6px;
  height: 6px;
  background: var(--color-text);
  transform: translateY(-50%);
}

/* =========================
   9. Grid- und Spaltenlogik
   ========================= */

.section-grid {
  display: grid;
  gap: var(--space-5);
}

.feature-grid,
.trust-grid,
.link-cards {
  display: grid;
  gap: var(--space-4);
}

/* =========================
   10. Buttons
   ========================= */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 22px;
  border: 1px solid transparent;
  border-radius: 0;
  font-size: 0.975rem;
  font-weight: 600;
  line-height: 1.2;
  text-align: center;
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast);
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--color-cta);
  border-color: var(--color-cta);
  color: var(--color-white);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--color-cta-hover);
  border-color: var(--color-cta-hover);
}

.button-secondary {
  background: transparent;
  border-color: var(--color-text);
  color: var(--color-text);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  background: var(--color-text);
  color: var(--color-white);
}

.button-block {
  width: 100%;
}

/* =========================
   11. Karten / Boxen / Highlights
   ========================= */

.feature-card,
.trust-card,
.link-card,
.form-shell,
.cta-band {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 0;
}

.feature-card,
.trust-card,
.link-card {
  padding: var(--space-4);
}

.feature-card h3,
.trust-card h3,
.link-card h2 {
  margin-bottom: var(--space-3);
}

.feature-card p,
.trust-card p,
.link-card p {
  color: var(--color-text-muted);
}

.link-card {
  display: block;
  transition:
    border-color var(--transition-fast),
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

.link-card:hover,
.link-card:focus-visible {
  border-color: var(--color-text);
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
}

.link-card h2 {
  font-size: 1.2rem;
}

/* =========================
   12. Vergleichstabellen / Info-Module
   ========================= */

.info-module,
.comparison-module,
.fact-band {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 0;
  padding: var(--space-4);
}

.fact-band {
  display: grid;
  gap: var(--space-3);
}

.comparison-module table {
  width: 100%;
  border-collapse: collapse;
}

.comparison-module th,
.comparison-module td {
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
}

.comparison-module th {
  font-weight: 600;
}

/* =========================
   13. CTA-Bereiche
   ========================= */

.section-cta-band {
  padding-top: var(--space-6);
  padding-bottom: var(--space-6);
}

.cta-band {
  display: grid;
  gap: var(--space-5);
  padding: var(--space-5);
  background: var(--color-text);
  border-color: var(--color-text);
  color: var(--color-white);
}

.cta-band-copy h2 {
  color: var(--color-white);
  margin-bottom: var(--space-3);
}

.cta-band-copy p {
  color: rgba(255, 255, 255, 0.82);
}

.cta-band-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.cta-band .button-primary {
  background: var(--color-white);
  border-color: var(--color-white);
  color: var(--color-text);
}

.cta-band .button-primary:hover,
.cta-band .button-primary:focus-visible {
  background: var(--color-surface);
  border-color: var(--color-surface);
}

.cta-band .button-secondary {
  border-color: rgba(255, 255, 255, 0.8);
  color: var(--color-white);
}

.cta-band .button-secondary:hover,
.cta-band .button-secondary:focus-visible {
  background: var(--color-white);
  color: var(--color-text);
}

/* =========================
   14. FAQ-Bereich
   ========================= */

.faq-section {
  padding-top: var(--space-6);
}

.faq-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--color-border);
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item summary {
  position: relative;
  padding: 20px 36px 20px 0;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--color-text);
}

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 20px;
  font-size: 1.25rem;
  line-height: 1;
  color: var(--color-text);
}

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

.faq-answer {
  padding: 0 0 20px;
}

.faq-answer p {
  color: var(--color-text-muted);
}

/* =========================
   15. Formularbereich
   ========================= */

.form-section {
  padding-top: var(--space-6);
}

.form-shell {
  padding: var(--space-5);
  background: var(--color-surface-light);
}

.hubspot-form-placeholder {
  margin-top: var(--space-4);
  padding: var(--space-4);
  border: 1px dashed var(--color-border);
  background: var(--color-white);
}

.hubspot-form-placeholder p {
  color: var(--color-text-muted);
}

/* Optische Vorbereitung für spätere HubSpot-Formulare */
.form-shell input,
.form-shell textarea,
.form-shell select {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: 0;
  background: var(--color-white);
  color: var(--color-text);
}

.form-shell textarea {
  min-height: 140px;
  resize: vertical;
}

.form-shell input:focus,
.form-shell textarea:focus,
.form-shell select:focus {
  outline: 2px solid transparent;
  border-color: var(--color-text);
}

/* =========================
   16. Footer
   ========================= */

.site-footer {
  margin-top: var(--space-7);
  padding-top: var(--space-6);
  background: var(--color-text);
  color: var(--color-white);
}

.footer-inner {
  display: grid;
  gap: var(--space-5);
}

.footer-brand p {
  margin-top: var(--space-3);
  color: rgba(255, 255, 255, 0.76);
  max-width: 32ch;
}

.site-logo-footer .site-logo-mark {
  color: var(--color-white);
}

.footer-column h2 {
  margin-bottom: var(--space-3);
  font-size: 1rem;
  color: var(--color-white);
}

.footer-list {
  display: grid;
  gap: var(--space-2);
}

.footer-list a {
  color: rgba(255, 255, 255, 0.82);
}

.footer-list a:hover,
.footer-list a:focus-visible {
  color: var(--color-white);
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  justify-content: space-between;
  padding: var(--space-5) 0;
  margin-top: var(--space-5);
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.footer-legal a,
.back-to-top {
  color: rgba(255, 255, 255, 0.82);
}

.footer-legal a:hover,
.footer-legal a:focus-visible,
.back-to-top:hover,
.back-to-top:focus-visible {
  color: var(--color-white);
}

/* =========================
   17. Bilddarstellung
   ========================= */

img {
  border-radius: 0;
}

.hero-media img,
.section-media img,
.link-card img {
  border-radius: 0;
}

figure {
  margin: 0;
}

figcaption {
  margin-top: var(--space-2);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* =========================
   18. Utility-Klassen
   ========================= */

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  margin: -1px !important;
  padding: 0 !important;
  overflow: hidden !important;
  clip: rect(0 0 0 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.text-center {
  text-align: center;
}

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

.surface-neutral {
  background: var(--color-surface);
}

/* =========================
   19. Responsive Breakpoints
   ========================= */

@media (min-width: 680px) {
  .hero-actions,
  .cta-band-actions {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
  }

  .feature-grid,
  .trust-grid,
  .link-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-bottom {
    flex-direction: row;
    align-items: center;
  }
}

@media (min-width: 768px) {
  body {
    font-size: 17px;
  }

  .container,
  .container-wide,
  .container-narrow {
    width: min(calc(100% - 48px), var(--container));
  }

  .container-wide {
    width: min(calc(100% - 48px), var(--container-wide));
  }

  .container-narrow {
    width: min(calc(100% - 48px), var(--container-narrow));
  }

  .section {
    padding: var(--space-8) 0;
  }

  .section-intro,
  .section-cta-band,
  .faq-section,
  .form-section {
    padding-top: var(--space-7);
  }

  .hero {
    padding: var(--space-8) 0 var(--space-7);
  }

  .section-grid-2,
  .hero-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-grid {
    gap: var(--space-6);
  }

  .section-grid {
    gap: var(--space-6);
  }

  .feature-grid,
  .trust-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-inner {
    grid-template-columns: 1.3fr 1fr 1fr 1fr;
  }

  .link-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  body {
    font-size: 18px;
  }

  .nav-toggle,
  .nav-mobile {
    display: none !important;
  }

  .nav-desktop {
    display: flex;
    align-items: center;
    gap: var(--space-5);
  }

  .main-nav {
    flex: 1;
    justify-content: flex-end;
  }

  .section {
    padding: var(--space-8) 0;
  }

  .hero {
    padding: var(--space-9) 0 var(--space-8);
  }

  .feature-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .trust-grid,
  .link-cards {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .cta-band {
    grid-template-columns: 1.6fr auto;
    align-items: center;
    gap: var(--space-6);
    padding: var(--space-6);
  }

  .cta-band-actions {
    justify-content: flex-end;
  }

  .form-shell {
    padding: var(--space-6);
  }
}

@media (min-width: 1280px) {
  .hero-home .hero-grid,
  .hero-standard .hero-grid {
    grid-template-columns: 1.05fr 0.95fr;
  }

  .section-grid-2 {
    grid-template-columns: 1fr 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}