/* ============================================================
   Hanfi's Internetauftritt – modernes, responsives Stylesheet
   Thema: Meer / Tauchen, in Blau gehalten
   ============================================================ */

:root {
  --color-deep:      #0b2a4a;
  --color-ocean:     #11406f;
  --color-ocean-2:   #1a5c9c;
  --color-accent:    #4fb3e8;
  --color-foam:      #eaf4fb;
  --color-text:      #1c2b36;
  --color-text-soft: #4a5a66;
  --color-card:      #ffffff;
  --radius: 10px;
  --max-width: 900px;
  --shadow: 0 2px 10px rgba(11, 42, 74, 0.15);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Segoe UI", Verdana, Arial, Helvetica, sans-serif;
  color: var(--color-text);
  background-color: var(--color-foam);
  background-image: url("/assets/img/bg.jpg");
  background-repeat: repeat-x;
  background-position: top center;
  line-height: 1.6;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--color-ocean-2); text-decoration: none; }
a:hover, a:focus { text-decoration: underline; color: var(--color-deep); }

.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  background: var(--color-deep);
  color: #fff;
  padding: 8px 16px;
  z-index: 100;
}
.skip-link:focus {
  left: 10px;
  top: 10px;
}

/* ---------- Kopfbereich ---------- */

.site-header {
  background-image: linear-gradient(rgba(5, 20, 36, 0.55), rgba(5, 20, 36, 0.65)), url("/assets/img/header.jpg");
  background-size: cover;
  background-position: center 20%;
  color: #fff;
  padding: 2.5rem 1rem 1.5rem;
  text-align: center;
}

.site-header h1 {
  margin: 0 0 0.3rem;
  font-size: 1.6rem;
  letter-spacing: 1px;
  font-weight: 600;
  text-shadow: 0 1px 4px rgba(0,0,0,0.5);
}

.site-header p.tagline {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-foam);
  opacity: 0.9;
}

/* ---------- Navigation ---------- */

nav.main-nav {
  background-color: var(--color-deep);
  border-bottom: 2px solid var(--color-accent);
}

nav.main-nav ul {
  list-style: none;
  margin: 0 auto;
  padding: 0;
  max-width: var(--max-width);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}

nav.main-nav a {
  display: block;
  color: #fff;
  padding: 0.85rem 1.1rem;
  font-size: 0.92rem;
  border-right: 1px solid rgba(255,255,255,0.15);
}

nav.main-nav li:last-child a { border-right: none; }

nav.main-nav a:hover,
nav.main-nav a:focus,
nav.main-nav a[aria-current="page"] {
  background-color: var(--color-ocean-2);
  text-decoration: none;
}

/* ---------- Inhalt ---------- */

main {
  max-width: var(--max-width);
  margin: 2rem auto;
  padding: 0 1rem;
}

.content-card {
  background: var(--color-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem;
}

.content-card h2 {
  color: var(--color-deep);
  letter-spacing: 1px;
  border-bottom: 2px solid var(--color-accent);
  padding-bottom: 0.5rem;
  margin-top: 0;
}

.content-card h3 {
  color: var(--color-ocean);
  margin-top: 2rem;
}

.content-card figure {
  margin: 1.5rem 0;
  text-align: center;
}

.content-card figcaption {
  font-size: 0.85rem;
  color: var(--color-text-soft);
  margin-top: 0.4rem;
}

.content-card img {
  border-radius: 6px;
  margin: 0 auto;
}

.img-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin: 1.5rem 0;
}
.img-row img { border-radius: 6px; }

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1rem 0 2rem;
}

.btn-tile {
  flex: 1 1 200px;
  text-align: center;
  background: var(--color-ocean);
  color: #fff !important;
  padding: 1.1rem 1rem;
  border-radius: var(--radius);
  font-weight: 600;
  letter-spacing: 0.4px;
  box-shadow: var(--shadow);
}
.btn-tile:hover { background: var(--color-ocean-2); text-decoration: none !important; }

/* ---------- Video-Seiten ---------- */

.video-wrap {
  max-width: 640px;
  margin: 1.5rem auto;
}
.video-wrap video {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  background: #000;
}

.video-list {
  list-style: none;
  padding: 0;
}
.video-list li {
  margin-bottom: 0.9rem;
  padding: 0.9rem 1.1rem;
  background: var(--color-foam);
  border-left: 4px solid var(--color-accent);
  border-radius: 6px;
}

/* ---------- Galerie ---------- */

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 0.6rem;
  margin: 1.5rem 0;
}
.gallery a img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 6px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.gallery a:hover img {
  transform: scale(1.04);
  box-shadow: var(--shadow);
}

/* ---------- Linksammlung ---------- */

.link-section { margin-bottom: 2.2rem; }
.link-section h3 {
  background: var(--color-ocean);
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: 6px 6px 0 0;
  margin: 0;
  font-size: 1rem;
  letter-spacing: 0.5px;
}
.link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0.8rem;
  background: var(--color-foam);
  padding: 1rem;
  border-radius: 0 0 6px 6px;
  margin: 0;
}
.link-card {
  background: #fff;
  border-radius: 6px;
  padding: 0.7rem;
  text-align: center;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--color-text);
}
.link-card img { margin: 0 auto; max-height: 70px; width: auto; }
.link-card a { display: block; color: var(--color-text); }
.link-card a:hover { color: var(--color-ocean-2); }

/* ---------- Fußbereich ---------- */

footer.site-footer {
  text-align: center;
  padding: 1.5rem 1rem 2.5rem;
  font-size: 0.85rem;
  color: var(--color-text-soft);
}
footer.site-footer nav {
  margin-bottom: 0.6rem;
}
footer.site-footer nav a {
  margin: 0 0.6rem;
  color: var(--color-ocean);
}

/* ---------- Responsiv ---------- */

@media (max-width: 600px) {
  .site-header h1 { font-size: 1.25rem; }
  .content-card { padding: 1.2rem; }
  nav.main-nav a { padding: 0.7rem 0.8rem; font-size: 0.85rem; }
}