/* ----------------- Basis / Theme ----------------- */

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

html {
  scroll-behavior: smooth;
}

:root {
  --bg-page: #020617;
  --bg-surface: #0b1120;
  --color-primary: #38bdf8;
  --color-secondary: #ec4899;
  --color-accent: #22c55e;
  --color-text-main: #e5e7eb;
  --color-text-muted: #9ca3af;
  --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.75);
  --radius-lg: 1.4rem;
  --radius-md: 1rem;
}

body {
  margin: 0;
  font-family: "Poppins", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
  color: var(--color-text-main);
  background:
    radial-gradient(circle at 0% 0%, rgba(56, 189, 248, 0.18), transparent 55%),
    radial-gradient(circle at 100% 100%, rgba(236, 72, 153, 0.2), transparent 55%),
    radial-gradient(circle at 20% 100%, rgba(34, 197, 94, 0.16), transparent 55%),
    var(--bg-page);
}

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

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

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

.container {
  width: min(1160px, 100% - 2.5rem);
  margin: 0 auto;
}

/* ----------------- Header & Navigation ----------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: linear-gradient(
    to right,
    rgba(15, 23, 42, 0.96),
    rgba(15, 23, 42, 0.9)
  );
  border-bottom: 1px solid rgba(148, 163, 184, 0.35);
  backdrop-filter: blur(16px);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.7rem 0;
}

.logo {
  display: flex;
  align-items: center;
}

.logo-link {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
}

.logo-img {
  height: 44px;
  width: auto;
  filter: drop-shadow(0 0 18px rgba(8, 47, 73, 0.8));
}

.logo-text {
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.8rem;
  color: #f9fafb;
}

.main-nav {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.main-nav a {
  font-size: 0.9rem;
  color: #e5e7eb;
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  position: relative;
  overflow: hidden;
  transition:
    color 0.12s ease-out,
    background 0.12s ease-out,
    transform 0.1s ease-out,
    box-shadow 0.12s ease-out;
}

.main-nav a::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 0 0, rgba(56, 189, 248, 0.7), transparent 55%);
  opacity: 0;
  transition: opacity 0.18s ease-out;
  z-index: -1;
}

.main-nav a:hover {
  transform: translateY(-1px);
  background: rgba(15, 23, 42, 0.6);
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.5);
}

.main-nav a:hover::before {
  opacity: 1;
}

.lang-switch {
  font-size: 0.82rem;
  padding-left: 0.75rem;
  border-left: 1px solid rgba(148, 163, 184, 0.5);
  color: #cbd5f5;
}

.lang-switch a {
  color: #e5e7eb;
}

.lang-switch a:hover {
  color: #f97316;
}

.lang-current {
  font-weight: 600;
  color: #facc15;
}

.nav-toggle {
  display: none;
  border: none;
  background: none;
  font-size: 1.7rem;
  color: #e5e7eb;
  cursor: pointer;
}

/* ----------------- Hero mit Hintergrundbild ----------------- */

.hero {
  position: relative;
  min-height: 70vh;
  background-image: url("florida-keys-ibekor.jpg");
  background-size: cover;
  background-position: center;
  color: #f9fafb;
  display: flex;
  align-items: center;
}

.hero .overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 0% 0%, rgba(56, 189, 248, 0.4), transparent 55%),
    radial-gradient(circle at 100% 100%, rgba(236, 72, 153, 0.55), transparent 60%),
    linear-gradient(120deg, rgba(15, 23, 42, 0.92), rgba(15, 23, 42, 0.55));
}

.hero-content {
  position: relative;
  padding: 3.5rem 0 3.5rem;
  max-width: 780px;
}

.hero-tagline {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 0.2rem 0.9rem;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(148, 163, 184, 0.8);
  color: #e5e7eb;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.8);
  margin-bottom: 0.9rem;
}

.hero h1 {
  font-size: clamp(1.8rem, 2.6vw, 2.3rem);
  margin-bottom: 0.8rem;
  letter-spacing: 0.02em;
}

.hero p {
  max-width: 46rem;
  margin-bottom: 0.9rem;
  color: #e5e7eb;
  font-weight: 300;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.1rem;
  margin-bottom: 0.7rem;
}

/* ----------------- Buttons ----------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.6rem;
  border-radius: 999px;
  font-size: 0.93rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition:
    transform 0.12s ease-out,
    box-shadow 0.15s ease-out,
    background 0.15s ease-out,
    border-color 0.15s ease-out;
  font-weight: 500;
  letter-spacing: 0.01em;
}

.btn-primary {
  background-image: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: #f9fafb;
  box-shadow: 0 16px 40px rgba(8, 47, 73, 0.85);
}

.btn-primary:hover {
  transform: translateY(-2px) scale(1.01);
  box-shadow: 0 22px 54px rgba(8, 47, 73, 0.95);
}

.btn-secondary {
  background: rgba(15, 23, 42, 0.8);
  color: #e5e7eb;
  border-color: rgba(148, 163, 184, 0.7);
}

.btn-secondary:hover {
  background: rgba(15, 23, 42, 1);
  transform: translateY(-2px);
}

/* ----------------- Sections ----------------- */

.section {
  position: relative;
  padding: 4.4rem 0;
}

.section::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 0% 10%, rgba(56, 189, 248, 0.14), transparent 60%),
    radial-gradient(circle at 100% 90%, rgba(236, 72, 153, 0.14), transparent 60%);
  opacity: 0.9;
  z-index: -2;
}

.section.section-alt::before {
  background:
    radial-gradient(circle at 15% 80%, rgba(34, 197, 94, 0.18), transparent 60%),
    radial-gradient(circle at 90% 0%, rgba(56, 189, 248, 0.12), transparent 60%);
}

.section h2 {
  font-size: 1.8rem;
  margin-bottom: 0.6rem;
}

.section-intro {
  max-width: 46rem;
  margin-bottom: 2.1rem;
  color: var(--color-text-muted);
  font-weight: 300;
}

.section::after {
  content: "";
  position: absolute;
  inset: 0 0 auto 50%;
  width: 60%;
  height: 2px;
  transform: translateX(-50%);
  background-image: linear-gradient(90deg, var(--color-primary), var(--color-secondary), var(--color-accent));
  opacity: 0.6;
}

/* ----------------- Grid & Cards ----------------- */

.grid {
  display: grid;
  gap: 1.6rem;
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
  position: relative;
  background: radial-gradient(circle at top left, rgba(15, 23, 42, 0.96), rgba(15, 23, 42, 0.9));
  padding: 1.6rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(148, 163, 184, 0.55);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  isolation: isolate;
  transform: translateY(0);
  transition:
    transform 0.14s ease-out,
    box-shadow 0.14s ease-out,
    border-color 0.16s ease-out,
    background 0.18s ease-out;
}

.card::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background-image: conic-gradient(
    from 180deg,
    rgba(56, 189, 248, 0.9),
    rgba(236, 72, 153, 0.9),
    rgba(34, 197, 94, 0.9),
    rgba(56, 189, 248, 0.9)
  );
  opacity: 0;
  z-index: -1;
  transition: opacity 0.2s ease-out;
}

.card h3 {
  margin-top: 0;
  margin-bottom: 0.8rem;
  font-size: 1.1rem;
}

.card ul {
  padding-left: 1.15rem;
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.93rem;
}

.card ol {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--color-text-muted);
  font-size: 0.93rem;
}

.card li + li {
  margin-top: 0.2rem;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 55px rgba(15, 23, 42, 0.95);
  border-color: transparent;
  background: radial-gradient(circle at top left, rgba(15, 23, 42, 0.98), #020617);
}

.card:hover::before {
  opacity: 0.8;
}

.card:hover ul,
.card:hover ol {
  color: #e5e7eb;
}

.card:hover h3 {
  color: #f9fafb;
}

.more-link {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  margin-top: 1.1rem;
  font-size: 0.9rem;
  color: var(--color-primary);
  font-weight: 500;
}

.more-link::after {
  content: "›";
  font-size: 0.95em;
  transform: translateY(1px);
}

.card:hover .more-link {
  color: #fefce8;
}

/* ----------------- Bildreihen ----------------- */

.image-row {
  margin-top: 2.4rem;
  display: grid;
  gap: 1.4rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.image-card {
  background: var(--bg-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(148, 163, 184, 0.75);
  box-shadow: 0 20px 52px rgba(15, 23, 42, 0.9);
  transform: translateY(0);
  transition:
    transform 0.16s ease-out,
    box-shadow 0.16s ease-out,
    border-color 0.16s ease-out,
    filter 0.16s ease-out;
}

.image-card img {
  width: 100%;
  height: auto;
}

.image-card figcaption {
  font-size: 0.85rem;
  padding: 0.85rem 1rem;
  color: var(--color-text-muted);
}

/* wichtig: vollständige Anzeige des Grimsel-Bildes, kein harter Zuschnitt */
.image-card.vertical img {
  width: 100%;
  height: auto;
  object-fit: contain;
}

.image-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 26px 70px rgba(15, 23, 42, 1);
  border-color: var(--color-primary);
  filter: saturate(1.1);
}

/* ----------------- Two-column Layout ----------------- */

.two-column {
  display: grid;
  gap: 2.1rem;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1.25fr);
  align-items: flex-start;
}

/* ----------------- Highlight-Box ----------------- */

.highlight-box {
  background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.2), rgba(15, 23, 42, 0.98));
  color: #e5e7eb;
  padding: 1.8rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(148, 163, 184, 0.7);
  box-shadow: var(--shadow-soft);
}

.highlight-box h3 {
  margin-top: 0;
}

/* ----------------- Video-Links ----------------- */

.video-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.2rem;
}

/* ----------------- Link-Listen ----------------- */

.link-list {
  list-style: none;
  padding: 0;
  margin: 1.1rem 0 0;
}

.link-list li {
  margin-bottom: 0.5rem;
}

.link-list a {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

/* ----------------- Checklist ----------------- */

.checklist {
  list-style: none;
  padding: 0;
  margin: 1.2rem 0 0;
}

.checklist li {
  position: relative;
  padding-left: 1.4rem;
  margin-bottom: 0.4rem;
  font-size: 0.94rem;
  color: var(--color-text-muted);
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45rem;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 999px;
  background-image: radial-gradient(circle at 30% 30%, #fefce8, #facc15);
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.35);
}

/* ----------------- Stats ----------------- */

.stats {
  margin-top: 1.8rem;
  display: grid;
  gap: 1.4rem;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.stat-number {
  display: block;
  font-size: 2.1rem;
  font-weight: 700;
  color: var(--color-primary);
}

.stat-label {
  display: block;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* ----------------- Kontaktbereich Startseite ----------------- */

.contact-form {
  background: radial-gradient(circle at top left, rgba(37, 99, 235, 0.28), rgba(15, 23, 42, 0.98));
  padding: 1.9rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(148, 163, 184, 0.9);
  display: grid;
  gap: 1rem;
  box-shadow: var(--shadow-soft);
  color: #e5e7eb;
}

.contact-form label {
  font-size: 0.85rem;
  display: grid;
  gap: 0.3rem;
}

.contact-form input,
.contact-form textarea {
  padding: 0.6rem 0.8rem;
  border-radius: 0.85rem;
  border: 1px solid rgba(148, 163, 184, 0.9);
  font: inherit;
  background: rgba(15, 23, 42, 0.94);
  color: #e5e7eb;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 1px var(--color-secondary);
}

.contact-images-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin: 1.2rem 0 1.4rem;
}

.contact-image {
  margin: 0;
}

.contact-info-image {
  max-width: 260px;
  height: auto;
}

/* ----------------- Footer ----------------- */

.site-footer {
  background: #020617;
  color: #9ca3af;
  padding: 1.7rem 0;
  font-size: 0.85rem;
  border-top: 1px solid rgba(148, 163, 184, 0.6);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-links a {
  margin-left: 1rem;
  color: #e5e7eb;
  font-size: 0.85rem;
}

/* ----------------- Datenschutzerklärung (kleiner) ----------------- */

.datenschutz {
  font-size: 0.8rem;
  line-height: 1.4;
  color: var(--color-text-muted);
  margin-top: 2rem;
}

.datenschutz h2,
.datenschutz h3 {
  font-size: 1rem;
  margin-top: 0;
}

/* ----------------- Responsive ----------------- */

@media (max-width: 900px) {
  .main-nav {
    position: absolute;
    inset: 56px 0 auto 0;
    background: rgba(15, 23, 42, 0.98);
    flex-direction: column;
    align-items: flex-start;
    padding: 0.9rem 1rem 1.1rem;
    border-bottom: 1px solid rgba(148, 163, 184, 0.6);
    transform: translateY(-140%);
    opacity: 0;
    pointer-events: none;
    transition: all 0.18s ease-out;
  }

  .main-nav a {
    width: 100%;
  }

  .main-nav.nav-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-toggle {
    display: block;
  }

  .two-column {
    grid-template-columns: 1fr;
  }

  .hero {
    text-align: left;
  }

  .hero-actions {
    justify-content: flex-start;
  }
}