/* =========================================================
   Inselheimat Spiekeroog — Stylesheet
   Stil: hell, ruhig, maritim-modern, gut lesbar
   ========================================================= */

/* ---------- 1. CSS-Variablen (Design Tokens) ---------- */
:root {
  /* Farben — maritim, hell, ruhig */
  --color-bg: #FBFAF6;              /* warmes Off-White (Dünensand) */
  --color-surface: #FFFFFF;         /* Kartenflächen */
  --color-surface-alt: #F2F0E8;     /* leicht abgesetzte Fläche */

  --color-primary: #1F5266;         /* Petrol / tiefes Meerblau */
  --color-primary-dark: #163C4B;    /* dunklere Variante (Hover, Header) */
  --color-primary-light: #4A7C90;   /* hellere Variante */

  --color-accent: #C99A5B;          /* warmer Sand-/Dünengras-Ton */
  --color-accent-dark: #A97D42;

  --color-seafoam: #A9C6C4;         /* zartes Türkis für Akzentflächen */

  --color-text: #223138;            /* dunkles Blaugrau, hoher Kontrast */
  --color-text-muted: #5B6B72;      /* gedämpfter Fließtext */
  --color-text-on-dark: #F5F7F5;

  --color-border: #E0DFD5;

  --color-success: #3D7A5C;
  --color-error: #B24545;

  /* Typografie */
  --font-heading: "Fraunces", Georgia, "Times New Roman", serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --fs-base: 1.125rem;      /* 18px — bewusst groß für gute Lesbarkeit */
  --fs-sm: 0.9rem;
  --fs-md: 1.125rem;
  --fs-lg: 1.35rem;
  --fs-xl: 1.75rem;
  --fs-2xl: 2.35rem;
  --fs-3xl: 3rem;

  --lh-base: 1.65;
  --lh-heading: 1.2;

  /* Abstände (8px-Raster) */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4.5rem;
  --space-7: 6rem;

  /* Layout */
  --container-max: 1140px;
  --container-padding: var(--space-3);
  --radius-sm: 6px;
  --radius-md: 14px;
  --radius-lg: 24px;

  --shadow-sm: 0 2px 8px rgba(22, 60, 75, 0.06);
  --shadow-md: 0 8px 24px rgba(22, 60, 75, 0.1);
  --shadow-lg: 0 16px 48px rgba(22, 60, 75, 0.16);

  --transition-base: 0.2s ease;
}

/* ---------- 2. Reset / Basis ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: var(--lh-base);
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover,
a:focus-visible {
  color: var(--color-primary-dark);
}

ul,
ol {
  padding-left: 1.25em;
}

ol {
  list-style: none;
  padding-left: 0;
  counter-reset: ol-counter;
}

ol li {
  counter-increment: ol-counter;
  position: relative;
  padding-left: 1.5em;
}

ol li + li {
  margin-top: 0.5em;
}

ol li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.6em;
  height: 0.6em;
  border-radius: 50%;
  background-color: var(--color-seafoam);
}

button {
  font-family: inherit;
}

/* Sichtbarer Fokus-Ring für Tastaturnutzung / Barrierefreiheit */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* ---------- 3. Typografie ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  line-height: var(--lh-heading);
  color: var(--color-primary-dark);
  margin: 0 0 var(--space-2);
  font-weight: 600;
}

h1 { font-size: var(--fs-3xl); }
h2 { font-size: var(--fs-2xl); }
h3 { font-size: var(--fs-xl); }
h4 { font-size: var(--fs-lg); }

p {
  margin: 0 0 var(--space-2);
}

.lead {
  font-size: var(--fs-lg);
  color: var(--color-text-muted);
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
  margin-bottom: var(--space-1);
}

/* ---------- 4. Layout-Hilfen ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

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

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

.section-header {
  max-width: 640px;
  margin-bottom: var(--space-4);
}

.section-header.center {
  margin-inline: auto;
  text-align: center;
}

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

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }

@media (max-width: 800px) {
  .grid--2,
  .grid--3 {
    grid-template-columns: 1fr;
  }
}

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

/* ---------- 5. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.9em 1.75em;
  border-radius: 999px;
  font-weight: 600;
  font-size: var(--fs-md);
  border: 2px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-primary-dark);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: var(--color-accent-dark);
  color: #fff;
}

.btn-secondary {
  background-color: transparent;
  border-color: var(--color-surface);
  color: var(--color-surface);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background-color: var(--color-surface);
  color: var(--color-primary-dark);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}

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

/* ---------- 6. Header / Navigation ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(251, 250, 246, 0.92);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-2);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--color-primary-dark);
}

.brand__mark {
  display: block;
  width: 3.6em;
  height: 3.6em;
  flex-shrink: 0;
  object-fit: contain;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.main-nav__list {
  display: flex;
  align-items: center;
  list-style: none;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
}

.main-nav__list a {
  display: inline-block;
  color: var(--color-text);
  font-weight: 500;
  font-size: 1rem;
  padding: 0.4em 0.1em;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}

.site-header .btn {
  font-size: 1rem;
  padding: 0.75em 1.4em;
}

.main-nav__list a:hover,
.main-nav__list a[aria-current="page"] {
  color: var(--color-primary);
  border-bottom-color: var(--color-accent);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: 0.5em;
  cursor: pointer;
}

.nav-toggle__bar,
.nav-toggle__bar::before,
.nav-toggle__bar::after {
  content: "";
  display: block;
  width: 26px;
  height: 2px;
  background-color: var(--color-primary-dark);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav-toggle__bar::before { transform: translateY(-8px); }
.nav-toggle__bar::after { transform: translateY(6px); }

@media (max-width: 1024px) {
  .nav-toggle {
    display: block;
  }

  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-2) var(--container-padding) var(--space-3);
    display: none;
  }

  .main-nav.is-open {
    display: flex;
  }

  .main-nav__list {
    flex-direction: column;
    gap: 0;
  }

  .main-nav__list a {
    display: block;
    padding: 0.9em 0;
    border-bottom: 1px solid var(--color-border);
  }

  .main-nav .btn {
    margin-top: var(--space-2);
    justify-content: center;
  }
}

/* ---------- 7. Hero ---------- */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: flex-end;
  color: var(--color-text-on-dark);
  background-color: var(--color-primary);
  background-image: linear-gradient(180deg, rgba(8, 20, 26, 0.4) 0%, rgba(7, 18, 24, 0.48) 40%, rgba(6, 15, 20, 0.78) 100%),
    var(--hero-image, none);
  background-size: cover;
  background-position: center;
}

.hero__content {
  padding-block: var(--space-6) var(--space-5);
  max-width: 640px;
}

.hero .eyebrow {
  color: var(--color-seafoam);
}

.hero h1 {
  color: #fff;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5), 0 4px 20px rgba(0, 0, 0, 0.45);
}

.hero__lead {
  font-size: var(--fs-lg);
  color: rgba(245, 247, 245, 0.95);
  margin-bottom: var(--space-3);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5), 0 2px 14px rgba(0, 0, 0, 0.4);
}

.hero .eyebrow {
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* ---------- 8. Karten / Komponenten ---------- */
.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

.feature-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.feature-list li {
  position: relative;
  padding-left: 1.5em;
}

.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.6em;
  height: 0.6em;
  border-radius: 50%;
  background-color: var(--color-seafoam);
}

.feature-list.card {
  padding: var(--space-4);
}

.image-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 220px;
  border-radius: var(--radius-md);
  background-color: var(--color-surface-alt);
  border: 1px dashed var(--color-border);
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  padding: var(--space-2);
}

.tour-embed {
  position: relative;
  width: 100%;
  max-width: 960px;
  margin-inline: auto;
  aspect-ratio: 17 / 9;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background-color: var(--color-surface-alt);
}

.tour-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

@media (max-width: 700px) {
  .tour-embed {
    aspect-ratio: 4 / 3;
  }
}

.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2);
}

.gallery img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  cursor: zoom-in;
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.gallery img:hover,
.gallery img:focus-visible {
  opacity: 0.88;
  transform: translateY(-2px);
}

.gallery .image-placeholder {
  aspect-ratio: 4 / 3;
  min-height: 0;
}

@media (max-width: 700px) {
  .gallery {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3);
  background-color: rgba(6, 15, 20, 0.92);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base);
}

.lightbox.is-open {
  opacity: 1;
  visibility: visible;
}

.lightbox__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  max-width: min(92vw, 1100px);
  max-height: 88vh;
}

.lightbox__image {
  max-width: 100%;
  max-height: 78vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}

.lightbox__caption {
  margin: 0;
  color: rgba(245, 247, 245, 0.9);
  font-size: var(--fs-sm);
  text-align: center;
}

.lightbox__close,
.lightbox__prev,
.lightbox__next {
  position: fixed;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border: none;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-size: 1.75rem;
  line-height: 1;
  cursor: pointer;
  transition: background-color var(--transition-base);
}

.lightbox__close:hover,
.lightbox__prev:hover,
.lightbox__next:hover {
  background-color: rgba(255, 255, 255, 0.25);
}

.lightbox__close {
  top: var(--space-3);
  right: var(--space-3);
}

.lightbox__prev {
  left: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
}

.lightbox__next {
  right: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
}

@media (max-width: 700px) {
  .lightbox__prev,
  .lightbox__next {
    width: 40px;
    height: 40px;
    font-size: 1.4rem;
  }

  .lightbox__prev {
    left: var(--space-2);
  }

  .lightbox__next {
    right: var(--space-2);
  }

  .lightbox__close {
    top: var(--space-2);
    right: var(--space-2);
  }
}

/* ---------- 9. Formulare ---------- */
.form-field {
  margin-bottom: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: 0.4em;
}

.form-field label {
  font-weight: 600;
  font-size: var(--fs-sm);
}

.form-field input,
.form-field textarea,
.form-field select {
  font: inherit;
  padding: 0.8em 1em;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  color: var(--color-text);
}

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

.form-note {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
}

/* ---------- 10. Info-/Platzhalter-Boxen ---------- */
.notice {
  border-radius: var(--radius-md);
  padding: var(--space-3);
  background-color: #FCF3E3;
  border: 1px solid var(--color-accent);
  color: var(--color-text);
}

.notice strong {
  color: var(--color-accent-dark);
}

.calendar-embed {
  min-height: 480px;
  border-radius: var(--radius-md);
  border: 1px dashed var(--color-border);
  background-color: var(--color-surface-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-3);
  color: var(--color-text-muted);
}

.price-table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.price-table th,
.price-table td {
  text-align: left;
  padding: var(--space-2);
  border-bottom: 1px solid var(--color-border);
}

.price-table th {
  background-color: var(--color-primary);
  color: #fff;
  font-family: var(--font-heading);
  font-weight: 600;
}

/* ---------- 11. Footer ---------- */
.site-footer {
  background-color: var(--color-primary-dark);
  color: rgba(245, 247, 245, 0.85);
  padding-block: var(--space-5) var(--space-3);
  line-height: 1.45;
}

.site-footer a {
  color: #fff;
}

.site-footer a:hover {
  color: var(--color-seafoam);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

@media (max-width: 700px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-logo {
  width: 5em;
  height: auto;
  margin-bottom: var(--space-2);
}

.footer-grid h4 {
  color: #fff;
  font-size: var(--fs-lg);
  margin-bottom: var(--space-2);
}

.footer-grid ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.65em;
}

.footer-bottom {
  border-top: 1px solid rgba(245, 247, 245, 0.15);
  padding-top: var(--space-3);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: space-between;
  font-size: var(--fs-sm);
}

.footer-legal {
  display: flex;
  gap: var(--space-2);
  list-style: none;
  padding: 0;
  margin: 0;
}

/* ---------- 12. Seiten-Kopf (Unterseiten ohne großes Hero) ---------- */
.page-header {
  background-color: var(--color-primary);
  color: #fff;
  padding-block: var(--space-6) var(--space-5);
}

.page-header .eyebrow {
  color: var(--color-seafoam);
}

.page-header h1 {
  color: #fff;
  margin-bottom: var(--space-1);
}

.page-header p {
  color: rgba(245, 247, 245, 0.85);
  max-width: 640px;
  margin-bottom: 0;
}

/* ---------- 13. Utilities ---------- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }