/* adiheiniger.ch — Domain-Verkaufsseite
   Stil angelehnt an computerhelp.ch (Farben, Typografie) */

:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f5f7f9;
  --color-navy: #0a0d35;
  --color-navy-soft: #14111e;
  --color-blue: #0033cc;
  --color-blue-light: #2962ea;
  --color-gold: #ffbc13;
  --color-text: #212121;
  --color-text-muted: #555555;
  --color-border: #e2e5eb;
  --color-focus: #2962ea;
  --font-heading: "Poppins", "Segoe UI", Arial, sans-serif;
  --font-body: "Source Sans Pro", "Segoe UI", Arial, sans-serif;
  --font-nav: "Roboto", "Segoe UI", Arial, sans-serif;
  --max-width: 960px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #0e0f1a;
    --color-bg-alt: #14111e;
    --color-text: #f2f2f5;
    --color-text-muted: #b7b9c4;
    --color-border: #2a2c3d;
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
}

h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.25;
}

a {
  color: var(--color-blue-light);
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-gold);
  color: var(--color-navy);
  padding: 10px 16px;
  font-weight: 600;
  z-index: 1000;
  text-decoration: none;
}

.skip-link:focus {
  left: 8px;
  top: 8px;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  background: var(--color-navy);
  color: #fff;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-logo {
  height: clamp(32px, 8vw, 48px);
  width: auto;
  max-width: 100%;
  display: block;
}

.brand-text {
  font-family: var(--font-heading);
  color: #fff;
  font-size: clamp(0.9rem, 2.4vw, 1.05rem);
  font-weight: 600;
  line-height: 1.35;
}

.brand-tagline {
  font-weight: 400;
  font-size: 0.85em;
  color: #cbced1;
}

.main-nav ul {
  list-style: none;
  display: flex;
  gap: 24px;
  margin: 0;
  padding: 0;
}

.main-nav a {
  color: #fff;
  text-decoration: none;
  font-family: var(--font-nav);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--color-gold);
  border-bottom-color: var(--color-gold);
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-blue) 100%);
  color: #fff;
  padding: 72px 20px;
  text-align: center;
}

.hero .domain-name {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.2rem);
  margin: 0 0 12px;
  word-break: break-word;
  color: #fff;
}

.hero .lead {
  font-size: 1.15rem;
  max-width: 640px;
  margin: 0 auto 28px;
  color: #eef1f8;
}

.badge {
  display: inline-block;
  background: var(--color-gold);
  color: var(--color-navy);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 10px 22px;
  border-radius: 999px;
}

/* Sections */
main section {
  padding: 56px 20px;
}

main section:nth-of-type(even) {
  background: var(--color-bg-alt);
}

.section-title {
  font-size: 1.6rem;
  margin: 0 0 28px;
  text-align: center;
}

.section-title::after {
  content: "";
  display: block;
  width: 56px;
  height: 3px;
  background: var(--color-gold);
  margin: 12px auto 0;
}

/* Sale / Contact card */
.sale-card {
  max-width: 640px;
  margin: 0 auto;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 32px;
  box-shadow: 0 8px 24px rgba(10, 13, 53, 0.08);
}

.sale-card dl {
  margin: 0;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px 20px;
}

.sale-card dt {
  font-weight: 600;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.sale-card dd {
  margin: 0;
}

.sale-card .company-name {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  margin: 0 0 18px;
  color: var(--color-blue);
}

.cta-row {
  margin-top: 24px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 600;
  text-decoration: none;
  padding: 12px 22px;
  border-radius: 6px;
  font-size: 0.95rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

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

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--color-blue-light);
}

.btn-secondary {
  background: transparent;
  color: var(--color-blue);
  border: 1px solid var(--color-blue);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background: var(--color-blue);
  color: #fff;
}

/* Timeline */
.timeline {
  position: relative;
  list-style: none;
  max-width: 720px;
  margin: 0 auto;
  padding-left: 32px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 1px;
  top: 11px;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.timeline-item {
  position: relative;
  padding-bottom: 34px;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -39px;
  top: 2px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-gold);
  border: 3px solid var(--color-navy);
  z-index: 1;
}

.timeline-date {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.15rem;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  color: var(--color-blue);
  display: block;
  margin-bottom: 8px;
}

.timeline-text {
  margin: 0;
  font-size: 1.02rem;
}

.placeholder-text {
  display: inline-block;
  font-style: italic;
  color: var(--color-text-muted);
  background: var(--color-bg-alt);
  border: 1px dashed var(--color-border);
  border-radius: 6px;
  padding: 8px 14px;
}

/* Impressum popup */
.impressum-dialog {
  max-width: 480px;
  width: calc(100% - 40px);
  border: none;
  border-radius: 12px;
  padding: 32px;
  color: var(--color-text);
  background: var(--color-bg);
  box-shadow: 0 16px 48px rgba(10, 13, 53, 0.25);
}

.impressum-dialog::backdrop {
  background: rgba(10, 13, 53, 0.6);
}

.impressum-dialog h2 {
  margin: 0 0 20px;
  font-size: 1.3rem;
}

.impressum-dialog dl {
  margin: 0 0 24px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px 20px;
}

.impressum-dialog dt {
  font-weight: 600;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.impressum-dialog dd {
  margin: 0;
}

.impressum-dialog a {
  color: var(--color-blue-light);
}

/* Footer */
.site-footer {
  background: var(--color-navy);
  color: #cbced1;
  padding: 32px 20px;
  text-align: center;
  font-size: 0.85rem;
}

.site-footer a {
  color: var(--color-gold);
  text-decoration: none;
}

.site-footer a:hover,
.site-footer a:focus-visible {
  text-decoration: underline;
}

.site-footer .footer-links {
  margin-top: 8px;
}

.site-footer .footer-links a,
.footer-link-btn {
  margin: 0 8px;
}

.footer-link-btn {
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  color: var(--color-gold);
  cursor: pointer;
  text-decoration: none;
}

.footer-link-btn:hover,
.footer-link-btn:focus-visible {
  text-decoration: underline;
}

@media (max-width: 640px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .main-nav ul {
    flex-wrap: wrap;
    gap: 12px 20px;
  }

  .sale-card dl {
    grid-template-columns: 1fr;
  }

  .sale-card dt {
    margin-top: 10px;
  }

  .impressum-dialog dl {
    grid-template-columns: 1fr;
  }

  .impressum-dialog dt {
    margin-top: 10px;
  }
}