/* Layout & tokens — angelehnt an klare Corporate-Landingpages (hell, viel Weißraum, blaue Akzente) */

:root {
  --bg: #f5f7fa;
  /* Endet mit --bg, damit kein heller Streifen zum Block-Bereich entsteht */
  --bg-hero: linear-gradient(165deg, #e8eef6 0%, var(--bg) 52%, var(--bg) 100%);
  --surface: #ffffff;
  --text: #1a2332;
  --text-muted: #5c6b7f;
  --heading: #022d94;
  /* CHECK24 / Insider-typisches Blau */
  --accent: #0070bb;
  --accent-soft: rgba(0, 112, 187, 0.12);
  --accent-hover: #005a94;
  --border: #e2e8f0;
  --shadow: 0 12px 40px rgba(15, 35, 65, 0.08);
  --radius: 12px;
  --font: "DM Sans", system-ui, -apple-system, sans-serif;
  --max: 1040px;
  --ease-card: cubic-bezier(0.25, 0.1, 0.25, 1);

  /* Typografie: identisch für DE (index.html) und EN (index-en.html) */
  --fs-bump: 1pt;
  --fs-body: calc(1rem + var(--fs-bump));
  --fs-brand-title: calc(1.05rem + var(--fs-bump));
  --fs-brand-sub: calc(0.75rem + var(--fs-bump));
  --fs-nav: calc(0.9rem + var(--fs-bump));
  --fs-lang: calc(0.85rem + var(--fs-bump));
  /* Nur „Willkommen!“ / Welcome — unverändert */
  --fs-hero-title: clamp(2.75rem, 8vw, 4.25rem);
  /* „Ablauf“ / Schedule: deutlich größer als Block-Titel, aber immer kleiner als der Hero-Titel */
  --fs-ablauf-title: clamp(2.1rem, 6.2vw, 2.65rem);
  --fs-hero-lead: calc(1.15rem + var(--fs-bump));
  --fs-block-title: clamp(
    calc(1.05rem + var(--fs-bump)),
    calc(1.75vw + var(--fs-bump)),
    calc(1.2rem + var(--fs-bump))
  );
  --fs-block-text: calc(0.85rem + var(--fs-bump));
  --fs-contact-heading: clamp(
    calc(1.5rem + var(--fs-bump)),
    calc(3.8vw + var(--fs-bump)),
    calc(1.9rem + var(--fs-bump))
  );
  --fs-contact-name: calc(1.05rem + var(--fs-bump));
  --fs-contact-meta: calc(0.85rem + var(--fs-bump));
  --fs-footer: calc(0.85rem + var(--fs-bump));
}

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

html {
  scroll-behavior: smooth;
  /* Anker (#programm, #ablauf, …) unter der sticky-Navigation ausrichten */
  scroll-padding-top: 5rem;
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: var(--fs-body);
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Header */

.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
  /* Horizontales Padding wie .hero — sonst sitzt die Marke rechts neben der Überschrift */
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: inherit;
  text-decoration: none;
}

.brand:hover {
  text-decoration: none;
}

/* Quadratisches Markenfeld mit leichtem Radius — analog Scholarships / Insider oben links */
.brand-logo-wrap {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  padding: 6px;
  border-radius: 12px;
  overflow: hidden;
  background: #ffffff;
  border: 1px solid var(--border);
  box-shadow: 0 1px 3px rgba(15, 35, 65, 0.06);
  line-height: 0;
}

.brand-logo {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
  object-position: center;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-title {
  font-weight: 700;
  font-size: var(--fs-brand-title);
  letter-spacing: -0.02em;
  color: var(--heading);
}

.brand-sub {
  font-size: var(--fs-brand-sub);
  color: var(--text-muted);
  font-weight: 500;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nav-link {
  font-size: var(--fs-nav);
  font-weight: 500;
  color: var(--text);
}

.nav-link:hover {
  color: var(--accent);
  text-decoration: none;
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: var(--fs-lang);
  color: var(--text-muted);
}

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

.lang-active {
  font-weight: 600;
  color: var(--text);
}

.lang-sep {
  opacity: 0.5;
}

/* Hero */

.hero {
  background: var(--bg-hero);
  padding: 3.5rem 1.5rem 2.25rem;
}

.hero-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(200px, 40%);
  gap: clamp(1.75rem, 4vw, 2.75rem);
  align-items: center;
}

.hero-copy {
  min-width: 0;
}

.hero-title {
  margin: 0 0 1rem;
  font-family: Arial, Helvetica, sans-serif;
  font-size: var(--fs-hero-title);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--heading);
}

.hero-lead {
  margin: 0;
  max-width: min(38rem, 100%);
  font-size: var(--fs-hero-lead);
  line-height: 1.55;
  color: var(--text-muted);
}

.hero-visual {
  margin: 0;
  max-width: 92%;
  justify-self: end;
}

.hero-illustration {
  display: block;
  width: 100%;
  height: auto;
}

@media (max-width: 800px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }

  .hero-visual {
    order: -1;
    max-width: min(360px, 92%);
    margin-left: auto;
    margin-right: auto;
    justify-self: center;
  }

  .hero-lead {
    max-width: min(58rem, 100%);
  }
}

/* Content blocks */

.blocks {
  padding: 0.75rem 1.5rem 1rem;
  background: var(--bg);
  scroll-margin-top: 5rem;
}

.blocks-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
  width: 100%;
}

/* Ablauf (Zeitstrahl unter den Programm-Kästchen) */

.ablauf-section {
  padding: 2.25rem 1.5rem 2.25rem;
  background: var(--bg);
}

.ablauf-inner {
  max-width: var(--max);
  margin: 0 auto;
}

.ablauf-title {
  margin: 0 0 1.15rem;
  font-family: Arial, Helvetica, sans-serif;
  font-size: var(--fs-ablauf-title);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--heading);
  text-align: center;
  scroll-margin-top: 5rem;
}

.timeline-visual {
  width: 100%;
  max-width: 100%;
  margin: 0;
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  padding: 0;
}

.timeline-image {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  margin: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
}

@media (max-width: 900px) {
  .blocks-inner {
    grid-template-columns: 1fr;
  }
}

.block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.2rem;
  scroll-margin-top: 5rem;
  box-shadow: 0 2px 12px rgba(15, 35, 65, 0.05);
  transform: translateY(0);
  transition:
    border-color 0.25s var(--ease-card),
    box-shadow 0.25s var(--ease-card),
    transform 0.25s var(--ease-card);
}

.block:hover,
.block:focus-within {
  border-color: var(--accent);
  box-shadow: 0 18px 44px rgba(15, 35, 65, 0.14);
  transform: translateY(-6px) scale(1.012);
}

.block-title {
  margin: 0 0 0.6rem;
  font-size: var(--fs-block-title);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--heading);
}

.block-text {
  margin: 0;
  font-size: var(--fs-block-text);
  color: var(--text-muted);
  line-height: 1.55;
}

.block-text + .block-text {
  margin-top: 0.85rem;
}

/* Contact */

.contact {
  padding: 2rem 1.5rem 4rem;
}

.contact-inner {
  max-width: var(--max);
  margin: 0 auto;
}

.contact-heading {
  margin: 0 0 1.75rem;
  font-size: var(--fs-contact-heading);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--heading);
}

.contact-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

@media (max-width: 640px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

.contact-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem 1.25rem;
  box-shadow: 0 4px 20px rgba(15, 35, 65, 0.06);
  transform: translateY(0);
  transition:
    border-color 0.25s var(--ease-card),
    box-shadow 0.25s var(--ease-card),
    transform 0.25s var(--ease-card);
}

.contact-card:hover,
.contact-card:focus-within {
  border-color: var(--accent);
  box-shadow: 0 18px 44px rgba(15, 35, 65, 0.14);
  transform: translateY(-6px) scale(1.012);
}

.contact-card:active {
  transform: translateY(-3px) scale(1.006);
}

.avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  border: 1px solid var(--border);
  background: var(--surface);
  margin-bottom: 1rem;
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  display: block;
}

.contact-name {
  margin: 0 0 0.35rem;
  font-size: var(--fs-contact-name);
  font-weight: 700;
  color: var(--heading);
}

.contact-role {
  margin: 0 0 0.75rem;
  font-size: var(--fs-contact-meta);
  color: var(--text-muted);
  line-height: 1.4;
}

.contact-mail {
  font-size: var(--fs-contact-meta);
  font-weight: 500;
  word-break: break-word;
}

.contact-mail:hover {
  color: var(--accent-hover);
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  padding: 1.25rem 1.5rem;
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  text-align: center;
  font-size: var(--fs-footer);
  color: var(--text-muted);
}

.footer-copy {
  margin: 0;
}

.footer-link {
  color: var(--text-muted);
  font-weight: 500;
  margin-left: 0.35rem;
  white-space: nowrap;
}

.footer-link:hover {
  color: var(--accent);
}

@media (max-width: 640px) {
  .header-nav .nav-link {
    display: none;
  }

  .hero {
    padding-top: 2.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .block,
  .contact-card {
    transition: none;
  }

  .block:hover,
  .contact-card:hover,
  .block:focus-within,
  .contact-card:focus-within,
  .contact-card:active {
    transform: none;
  }
}