@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Space+Grotesk:wght@500;600;700&display=swap');

:root {
  --color-brand-primary: #eab308;
  --color-brand-hover: #ca8a04;
  --color-brand-light: #fefce8;
  --color-brand-charcoal: #181e26;
  --color-brand-slate: #64748b;
  --color-brand-slate-light: #94a3b8;
  --color-surface-dark: #0f141c;
  --color-surface-darker: #090d13;
  --color-surface-card: #182234;
  --color-text-main: #181e26;
  --color-text-muted: #64748b;
  --color-text-light: #f8fafc;
  --color-border-subtle: #e2e8f0;
  --color-border-dark: #1e293b;
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'Space Grotesk', monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text-main);
  background-color: #f8fafc;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
  overflow-x: hidden;
}

/* Tracking utility matching the 'I N D O N E S I A' subword in logo */
.tracking-logo-sub {
  letter-spacing: 0.25em;
  text-transform: uppercase;
}

.font-mono-stat {
  font-family: var(--font-mono);
  letter-spacing: -0.02em;
}

/* Logo container & display styling */
.brand-logo-img {
  height: 2.75rem;
  width: auto;
  object-fit: contain;
  transition: transform 0.2s ease;
}

.brand-logo-img:hover {
  transform: scale(1.02);
}

/* Glassmorphism & Surface Refractions */
.glass-panel {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(226, 232, 240, 0.8);
}

.glass-panel-dark {
  background: rgba(15, 20, 28, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

/* Card Hover Physics */
.interactive-card {
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.2s ease;
}

.interactive-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 30px -10px rgba(15, 23, 42, 0.08);
}

/* Mountain Expedition Yellow Primary Button (Dark Charcoal on Yellow for AA Contrast) */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: var(--color-brand-primary);
  color: #0f172a !important;
  font-weight: 700;
  padding: 0.75rem 1.5rem;
  border-radius: 9999px;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  text-decoration: none;
  border: none;
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary:hover {
  background-color: var(--color-brand-hover);
  color: #0f172a !important;
  transform: translateY(-1px);
  box-shadow: 0 8px 20px -4px rgba(234, 179, 8, 0.45);
}

.btn-primary:active {
  transform: translateY(0px) scale(0.98);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: #ffffff;
  color: var(--color-brand-charcoal);
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: 9999px;
  border: 1px solid #cbd5e1;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
}

.btn-secondary:hover {
  background-color: #f1f5f9;
  border-color: #94a3b8;
  transform: translateY(-1px);
}

.btn-secondary:active {
  transform: translateY(0px) scale(0.98);
}

.btn-ghost-dark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: rgba(255, 255, 255, 0.08);
  color: #ffffff !important;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: 9999px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  transition: all 0.2s ease;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
}

.btn-ghost-dark:hover {
  background-color: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.4);
}

/* Badge Styles */
.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* Hide scrollbar for tabs / filters */
.no-scrollbar::-webkit-scrollbar {
  display: none;
}
.no-scrollbar {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

/* Smooth Accordions */
details summary::-webkit-details-marker {
  display: none;
}
details[open] summary .accordion-chevron {
  transform: rotate(180deg);
}

/* Timeline Vertical Line */
.timeline-track::before {
  content: '';
  position: absolute;
  top: 1.5rem;
  bottom: 1.5rem;
  left: 1.25rem;
  width: 2px;
  background-color: #cbd5e1;
}

/* Image Aspect Ratios */
.aspect-card {
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.aspect-hero {
  aspect-ratio: 21 / 9;
  object-fit: cover;
}

/* Sticky booking sidebar */
.sticky-sidebar {
  position: sticky;
  top: 6rem;
}