/* ==========================================================================
   PlanetWeather Static Web Stylesheet
   Modern, elegant, responsive scientific aesthetic.
   Supports Light Mode & Dark Mode, Zero External CDN Dependencies.
   ========================================================================== */

:root {
  /* Light Theme (Default) */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: rgba(255, 255, 255, 0.98);
  --border-subtle: rgba(15, 23, 42, 0.08);
  --border-hover: rgba(113, 179, 212, 0.35);
  --text-primary: #0b1020;
  --text-secondary: #475569;
  --text-tertiary: #64748b;
  --accent-cyan: #1282a2;
  --accent-blue: #0284c7;
  --accent-glow: rgba(165, 226, 235, 0.45);
  --accent-badge-bg: rgba(165, 226, 235, 0.25);
  --accent-badge-text: #075985;
  --header-bg: rgba(248, 250, 252, 0.82);
  --card-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05), 0 2px 6px -1px rgba(15, 23, 42, 0.03);
  --card-shadow-hover: 0 12px 30px -4px rgba(15, 23, 42, 0.08), 0 4px 12px -2px rgba(15, 23, 42, 0.04);
  --code-bg: #e2e8f0;
  --placeholder-bg: rgba(239, 68, 68, 0.08);
  --placeholder-border: #f87171;
  --placeholder-text: #dc2626;
  --nav-active-bg: rgba(113, 179, 212, 0.15);
  --hero-mesh: radial-gradient(circle at 50% -10%, rgba(165, 226, 235, 0.45), transparent 60%),
               radial-gradient(circle at 80% 20%, rgba(113, 179, 212, 0.25), transparent 45%),
               radial-gradient(circle at 20% 30%, rgba(200, 240, 250, 0.35), transparent 50%);
}

[data-theme="dark"] {
  /* Dark Theme */
  --bg-primary: #070a13;
  --bg-secondary: #0e1424;
  --bg-tertiary: #131b2e;
  --bg-card: rgba(14, 20, 36, 0.75);
  --bg-card-hover: rgba(19, 27, 46, 0.95);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(165, 226, 235, 0.3);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-tertiary: #64748b;
  --accent-cyan: #71b3d4;
  --accent-blue: #38bdf8;
  --accent-glow: rgba(113, 179, 212, 0.25);
  --accent-badge-bg: rgba(113, 179, 212, 0.15);
  --accent-badge-text: #a5e2eb;
  --header-bg: rgba(7, 10, 19, 0.85);
  --card-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.4), 0 1px 3px rgba(0, 0, 0, 0.3);
  --card-shadow-hover: 0 12px 30px -4px rgba(0, 0, 0, 0.6), 0 0 20px rgba(113, 179, 212, 0.15);
  --code-bg: #1e293b;
  --placeholder-bg: rgba(239, 68, 68, 0.15);
  --placeholder-border: #ef4444;
  --placeholder-text: #fca5a5;
  --nav-active-bg: rgba(113, 179, 212, 0.2);
  --hero-mesh: radial-gradient(circle at 50% -10%, rgba(113, 179, 212, 0.2), transparent 60%),
               radial-gradient(circle at 80% 20%, rgba(56, 189, 248, 0.12), transparent 45%),
               radial-gradient(circle at 20% 30%, rgba(165, 226, 235, 0.15), transparent 50%);
}

/* ==========================================================================
   Base & Reset
   ========================================================================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  background-image: var(--hero-mesh);
  background-attachment: fixed;
  background-repeat: no-repeat;
  font-size: 16px;
  line-height: 1.6;
  scroll-behavior: smooth;
  transition: background-color 0.25s ease, color 0.25s ease;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--accent-cyan);
  text-decoration: none;
  transition: color 0.15s ease, opacity 0.15s ease;
}

a:hover {
  color: var(--accent-blue);
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--header-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

.nav-container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.brand-logo-svg {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
}

.brand-badge {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: var(--accent-badge-bg);
  color: var(--accent-badge-text);
  border: 1px solid rgba(113, 179, 212, 0.25);
  letter-spacing: 0.03em;
}

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

.nav-link {
  padding: 0.4rem 0.85rem;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 8px;
  transition: all 0.15s ease;
}

.nav-link:hover {
  color: var(--text-primary);
  background: var(--nav-active-bg);
}

.nav-link.active {
  color: var(--accent-cyan);
  background: var(--nav-active-bg);
  font-weight: 600;
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: 0.5rem;
  padding-left: 0.5rem;
  border-left: 1px solid var(--border-subtle);
}

.btn-ctrl {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 0.35rem 0.7rem;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  transition: all 0.15s ease;
}

.btn-ctrl:hover {
  border-color: var(--border-hover);
  background: var(--bg-secondary);
}

.btn-icon-svg {
  width: 15px;
  height: 15px;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  max-width: 1120px;
  margin: 0 auto;
  padding: 4.5rem 1.5rem 3rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.95rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  background: var(--accent-badge-bg);
  color: var(--accent-badge-text);
  border: 1px solid rgba(113, 179, 212, 0.35);
  margin-bottom: 1.5rem;
  letter-spacing: 0.02em;
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.035em;
  color: var(--text-primary);
  max-width: 880px;
  margin-bottom: 1.25rem;
}

.hero-title-accent {
  background: linear-gradient(135deg, #0284c7 0%, #1282a2 60%, #71b3d4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

[data-theme="dark"] .hero-title-accent {
  background: linear-gradient(135deg, #a5e2eb 0%, #71b3d4 50%, #38bdf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: clamp(1.05rem, 2vw, 1.22rem);
  color: var(--text-secondary);
  max-width: 720px;
  line-height: 1.65;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  justify-content: center;
  margin-bottom: 3.5rem;
}

.btn-primary {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  color: #ffffff;
  padding: 0.75rem 1.6rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.96rem;
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.15);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

[data-theme="dark"] .btn-primary {
  background: linear-gradient(135deg, #71b3d4 0%, #38bdf8 100%);
  color: #070a13;
  box-shadow: 0 4px 18px rgba(56, 189, 248, 0.25);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(15, 23, 42, 0.25);
  color: #ffffff;
}

[data-theme="dark"] .btn-primary:hover {
  color: #070a13;
  box-shadow: 0 6px 24px rgba(56, 189, 248, 0.4);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  padding: 0.75rem 1.45rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.96rem;
  box-shadow: var(--card-shadow);
  transition: all 0.15s ease;
}

.btn-secondary:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  color: var(--accent-cyan);
}

/* ==========================================================================
   Hero Visual Graphic (Pure CSS + SVG Solar System Visual)
   ========================================================================== */
.hero-visual-card {
  width: 100%;
  max-width: 960px;
  border-radius: 20px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--card-shadow);
  padding: 2.2rem 1.5rem;
  position: relative;
  overflow: hidden;
  margin-bottom: 2rem;
}

.visual-orbit-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
}

.hero-svg-art {
  width: 100%;
  max-width: 640px;
  height: auto;
  filter: drop-shadow(0 10px 24px rgba(113, 179, 212, 0.18));
}

.hero-visual-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  justify-content: center;
}

.v-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.9rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.03);
}

.v-badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #10b981;
}

/* ==========================================================================
   Metric Highlights
   ========================================================================== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  max-width: 1120px;
  margin: 0 auto 4rem;
  padding: 0 1.5rem;
  width: 100%;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 1.5rem 1.25rem;
  text-align: center;
  box-shadow: var(--card-shadow);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.stat-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-hover);
}

.stat-num {
  font-size: 2.3rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--accent-cyan);
  line-height: 1.1;
  margin-bottom: 0.35rem;
}

.stat-label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.stat-sub {
  font-size: 0.78rem;
  color: var(--text-tertiary);
  line-height: 1.35;
}

/* ==========================================================================
   Feature Cards Grid
   ========================================================================== */
.section-wrapper {
  max-width: 1120px;
  margin: 0 auto 5rem;
  padding: 0 1.5rem;
  width: 100%;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 2.8rem;
}

.section-tag {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
  display: block;
}

.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  margin-bottom: 0.85rem;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 18px;
  padding: 2rem 1.8rem;
  box-shadow: var(--card-shadow);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-hover);
  box-shadow: var(--card-shadow-hover);
}

.feature-icon-box {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--accent-badge-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  margin-bottom: 1.25rem;
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.65rem;
  letter-spacing: -0.015em;
}

.feature-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 1.1rem;
  flex-grow: 1;
}

.feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.feature-tag {
  font-size: 0.74rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border-radius: 6px;
  border: 1px solid var(--border-subtle);
}

/* ==========================================================================
   Destinations Grid
   ========================================================================== */
.destinations-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.dest-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 1.5rem 1.25rem;
  box-shadow: var(--card-shadow);
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.dest-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-hover);
}

.dest-planet {
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent-cyan);
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.dest-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.6rem;
}

.dest-snippet {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 0.85rem;
  flex-grow: 1;
}

.dest-meta {
  font-size: 0.76rem;
  color: var(--text-tertiary);
  border-top: 1px solid var(--border-subtle);
  padding-top: 0.6rem;
}

/* ==========================================================================
   Principles & Disclosures Section
   ========================================================================== */
.principles-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.principle-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 1.5rem 1.25rem;
  box-shadow: var(--card-shadow);
  transition: all 0.2s ease;
}

.principle-card:hover {
  border-color: var(--border-hover);
}

.principle-icon {
  font-size: 1.4rem;
  margin-bottom: 0.75rem;
}

.principle-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.45rem;
}

.principle-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* ==========================================================================
   Notice Callout Banner
   ========================================================================== */
.notice-box {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-left: 4px solid var(--accent-cyan);
  border-radius: 14px;
  padding: 1.4rem 1.6rem;
  margin-bottom: 4rem;
  box-shadow: var(--card-shadow);
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.notice-icon {
  font-size: 1.35rem;
  flex-shrink: 0;
  color: var(--accent-cyan);
}

.notice-content h4 {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.notice-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   FAQ Section (Accordion style)
   ========================================================================== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: border-color 0.15s ease;
}

.faq-item:hover {
  border-color: var(--border-hover);
}

.faq-summary {
  padding: 1.15rem 1.4rem;
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-primary);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  user-select: none;
}

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

.faq-arrow {
  width: 16px;
  height: 16px;
  transition: transform 0.2s ease;
  color: var(--text-tertiary);
  flex-shrink: 0;
}

details[open] .faq-arrow {
  transform: rotate(180deg);
  color: var(--accent-cyan);
}

.faq-answer {
  padding: 0 1.4rem 1.25rem;
  color: var(--text-secondary);
  font-size: 0.93rem;
  line-height: 1.65;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1rem;
}

/* ==========================================================================
   Page Card (for Privacy & Support documents)
   ========================================================================== */
.page-container {
  max-width: 860px;
  margin: 2.5rem auto 5rem;
  padding: 0 1.5rem;
  width: 100%;
}

.page-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  padding: 2.5rem 2.8rem;
  box-shadow: var(--card-shadow);
}

.page-title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  margin-bottom: 0.65rem;
}

.page-meta {
  font-size: 0.86rem;
  color: var(--text-tertiary);
  padding-bottom: 1.2rem;
  margin-bottom: 1.8rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.page-card h2 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 2.2rem 0 0.85rem;
  letter-spacing: -0.015em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.page-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 1.4rem 0 0.5rem;
}

.page-card p {
  font-size: 0.97rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.page-card ul, .page-card ol {
  margin: 0.5rem 0 1.2rem 1.4rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.page-card li {
  margin-bottom: 0.4rem;
}

.callout-box {
  background: var(--bg-tertiary);
  border-left: 4px solid var(--accent-cyan);
  border-radius: 8px;
  padding: 1.1rem 1.3rem;
  margin: 1.5rem 0;
  font-size: 0.94rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.placeholder {
  background: var(--placeholder-bg);
  border: 1px dashed var(--placeholder-border);
  color: var(--placeholder-text);
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.88em;
  font-weight: 600;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  margin-top: auto;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  padding: 3.5rem 1.5rem 2.5rem;
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

.footer-container {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 2rem;
}

.footer-brand {
  max-width: 360px;
}

.footer-brand-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-brand-desc {
  font-size: 0.88rem;
  color: var(--text-tertiary);
  line-height: 1.6;
}

.footer-links-group {
  display: flex;
  gap: 3rem;
}

.footer-col h5 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-primary);
  margin-bottom: 0.85rem;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-col a {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.footer-col a:hover {
  color: var(--accent-cyan);
}

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.8rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-size: 0.82rem;
  color: var(--text-tertiary);
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 960px) {
  .stats-grid,
  .destinations-grid,
  .principles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 720px) {
  .nav-container {
    padding: 0.75rem 1rem;
    flex-wrap: wrap;
  }
  .nav-menu {
    order: 3;
    width: 100%;
    justify-content: center;
    padding-top: 0.5rem;
    border-top: 1px solid var(--border-subtle);
  }
  .hero-section {
    padding: 3rem 1rem 2rem;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .stats-grid,
  .destinations-grid,
  .principles-grid {
    grid-template-columns: 1fr;
  }
  .page-card {
    padding: 1.8rem 1.4rem;
  }
  .footer-top {
    flex-direction: column;
  }
  .footer-links-group {
    flex-direction: column;
    gap: 1.5rem;
  }
}