:root {
  color-scheme: light;
  --bg: #f4f5f7;
  --surface: #ffffff;
  --surface-strong: #ffffff;
  --surface-soft: #f7f8fa;
  --text: #142031;
  --muted: #556274;
  --line: #dde2e8;
  --primary: #1c4ed8;
  --primary-dark: #173ea8;
  --shadow: 0 8px 24px rgba(15, 32, 54, 0.06);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 18px;
  --radius-sm: 14px;
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

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

a {
  color: inherit;
}

.page-shell {
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
  padding: 20px 0 32px;
}

.site-header,
.section-block,
.site-footer {
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.site-header,
.site-footer,
.section-block {
  border-radius: var(--radius-xl);
}

.site-header {
  position: sticky;
  top: 16px;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 18px 24px;
  margin-bottom: 20px;
}

.brand {
  font-size: 1.05rem;
  font-weight: 800;
  text-decoration: none;
  letter-spacing: 0.02em;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.site-nav a {
  padding: 10px 14px;
  border-radius: 999px;
  text-decoration: none;
  color: var(--muted);
}

.site-nav a:hover {
  background: #eef2f7;
  color: var(--text);
}

.site-nav a:focus-visible {
  background: #eef2f7;
  color: var(--text);
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

main {
  display: grid;
  gap: 20px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.9fr);
  gap: 28px;
  padding: 36px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow);
  color: var(--text);
}

.eyebrow,
.section-kicker,
.card-tag {
  margin: 0 0 10px;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow {
  color: var(--muted);
}

.section-kicker,
.card-tag {
  color: var(--primary);
}

h1,
h2,
h3,
summary {
  margin-top: 0;
  line-height: 1.12;
}

h1 {
  max-width: 12ch;
  margin-bottom: 16px;
  font-size: clamp(2.6rem, 6vw, 5rem);
}

h2 {
  margin-bottom: 12px;
  font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
  font-size: 1.35rem;
}

.hero-lead,
.section-intro p,
.panel p,
.booking-panel p,
.overview-card p {
  color: var(--muted);
}

.hero-lead {
  max-width: 56ch;
  color: var(--muted);
  font-size: 1.08rem;
}

.hero-actions,
.booking-buttons,
.overview-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-actions {
  margin: 28px 0 24px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  transition: transform 140ms ease, background 140ms ease, border-color 140ms ease;
}

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

.button:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  transform: translateY(-1px);
}

.button-primary {
  background: var(--primary);
  color: #ffffff;
}

.button-primary:hover {
  background: var(--primary-dark);
}

.button-secondary {
  border: 1px solid var(--line);
  background: #ffffff;
  color: var(--text);
}

.section-block .button-secondary {
  background: #ffffff;
}

.hero-mini-card {
  border: 1px solid var(--line);
  background: var(--surface-soft);
}

.stat-strip strong {
  display: block;
  margin-bottom: 4px;
}

.hero-visual {
  display: grid;
  align-content: end;
  gap: 16px;
}

.hero-main-image,
.hero-mini-card img,
.gallery-grid img,
.panel-image img {
  width: 100%;
  object-fit: cover;
}

.hero-main-image {
  aspect-ratio: 4 / 4.35;
  border-radius: var(--radius-xl);
  box-shadow: 0 8px 24px rgba(15, 32, 54, 0.08);
}

.hero-mini-card {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 14px;
  padding: 14px;
  border-radius: var(--radius-md);
}

.hero-mini-card img {
  height: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 12px;
}

.hero-mini-card p {
  margin: 0 0 6px;
  color: var(--muted);
  text-transform: uppercase;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
}

.hero-mini-card strong {
  display: block;
  color: var(--text);
}

.section-block {
  padding: 32px;
}

.section-block,
.hero {
  scroll-margin-top: 80px;
}

.section-intro {
  margin-bottom: 22px;
}

.split-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.9fr);
  gap: 20px;
  align-items: end;
}

.overview-grid,
.feature-grid,
.rules-layout,
.board-layout,
.two-column-layout {
  display: grid;
  gap: 20px;
}

.overview-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.overview-card,
.panel,
.booking-panel {
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--surface-strong);
}

.overview-card,
.booking-panel,
.panel {
  padding: 24px;
}

.overview-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 100%;
}


.fact-list,
.notice-list,
.feature-grid {
  margin: 0;
  padding-left: 20px;
}

.fact-list li + li,
.notice-list li + li {
  margin-top: 10px;
}

.overview-card-actions,
.booking-buttons {
  margin-top: 22px;
}

.stat-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.stat-strip article {
  padding: 16px;
  border-radius: var(--radius-md);
  background: var(--surface-soft);
  border: 1px solid var(--line);
}

.stat-strip span {
  color: var(--muted);
}

.gallery-grid {
  display: grid;
  gap: 12px;
  margin-bottom: 20px;
}

.gallery-grid-room {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.gallery-grid img,
.panel-image img {
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-md);
}

.two-column-layout {
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
  align-items: start;
  margin-bottom: 20px;
}

.stack-column {
  display: grid;
  gap: 20px;
}

.panel-soft {
  background: var(--surface-soft);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 18px;
  padding-left: 20px;
}

.booking-panel {
  position: sticky;
  top: 108px;
  background: var(--surface-strong);
}

.compact-booking-panel {
  position: static;
}

.notice-list {
  margin-top: 20px;
}

.rules-layout {
  grid-template-columns: minmax(280px, 0.8fr) minmax(0, 1.2fr);
}

.rules-panel details {
  border-top: 1px solid var(--line);
}

.rules-panel details:last-of-type {
  border-bottom: 1px solid var(--line);
}

.rules-panel summary {
  padding: 16px 0;
  cursor: pointer;
  font-size: 1.05rem;
  font-weight: 700;
  list-style: none;
}

.rules-panel summary::-webkit-details-marker {
  display: none;
}

.details-content {
  padding: 0 0 18px;
}

.compact-list {
  margin-top: 0;
}

.offer-section-board {
  background: var(--surface);
}

.board-layout {
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  align-items: start;
  margin-bottom: 20px;
}

.panel-image {
  padding: 12px;
}

.panel-image img {
  aspect-ratio: 3 / 4;
}

.site-footer {
  margin-top: 20px;
  padding: 22px 24px;
  text-align: center;
  color: var(--muted);
}

/* ── Lightbox (CSS-only :target) ── */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.85);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

.lightbox:target {
  opacity: 1;
  visibility: visible;
}

.lightbox-inner {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
}

.lightbox-inner img {
  max-width: 90vw;
  max-height: 90vh;
  width: auto;
  height: auto;
  border-radius: var(--radius-md);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
  object-fit: contain;
}

.lightbox-close {
  position: absolute;
  top: -14px;
  right: -14px;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface);
  color: var(--text);
  border-radius: 50%;
  text-decoration: none;
  font-size: 1.1rem;
  line-height: 1;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  transition: transform 0.15s ease;
}

.lightbox-close:hover {
  transform: scale(1.1);
}

.lightbox-backdrop {
  position: absolute;
  inset: 0;
}

.gallery-grid a,
.panel-image a {
  display: block;
  cursor: zoom-in;
}
@media (max-width: 980px) {
  .hero,
  .split-intro,
  .overview-grid,
  .gallery-grid-room,
  .two-column-layout,
  .rules-layout,
  .board-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 28px;
  }

  .stat-strip,
  .feature-grid {
    grid-template-columns: 1fr 1fr;
  }

  .booking-panel {
    position: static;
  }
}

@media (max-width: 760px) {
  .page-shell {
    width: min(calc(100% - 20px), var(--max-width));
    padding-top: 10px;
  }

  .site-header,
  .section-block,
  .site-footer {
    border-radius: 22px;
  }

  .site-header,
  .section-block,
  .site-footer {
    padding-left: 18px;
    padding-right: 18px;
  }

  .site-header {
    position: static;
    flex-direction: column;
    align-items: flex-start;
  }

  .hero {
    padding: 24px;
  }

  h1 {
    max-width: none;
  }

  .stat-strip,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .hero-mini-card {
    grid-template-columns: 88px 1fr;
  }

  .button,
  .hero-actions .button,
  .booking-buttons .button {
    width: 100%;
  }
}