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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
}

/* ─── NAV ─── */
#nav {
  transition: background-color 0.5s ease, backdrop-filter 0.5s ease, box-shadow 0.5s ease;
}

#nav.scrolled {
  background-color: rgba(13, 13, 15, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06);
}

.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: rgba(255, 255, 255, 0.6);
  transition: width 0.3s ease;
}

.nav-link:hover::after {
  width: 100%;
}

/* ─── MOBILE MENU ─── */
#mobile-menu.open {
  opacity: 1;
  pointer-events: all;
}

#mobile-menu.open .mobile-link {
  animation: fadeUp 0.4s ease forwards;
  opacity: 0;
}

#mobile-menu.open .mobile-link:nth-child(1) { animation-delay: 0.05s; }
#mobile-menu.open .mobile-link:nth-child(2) { animation-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(3) { animation-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(4) { animation-delay: 0.2s; }
#mobile-menu.open .mobile-link:nth-child(5) { animation-delay: 0.25s; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.menu-line {
  display: block;
}

#menu-btn.active .menu-line:first-child {
  transform: rotate(45deg) translate(3px, 3px);
}

#menu-btn.active .menu-line:last-child {
  transform: rotate(-45deg) translate(2px, -2px);
}

/* ─── HERO ─── */
.hero-bg {
  will-change: transform;
}

.hero-overlay {
  background-image: linear-gradient(to bottom, rgba(30, 5, 12, 0.65) 0%, rgba(61, 10, 21, 0.5) 50%, rgba(30, 5, 12, 0.8) 100%);
}

.hero-eyebrow {
  animation: heroFadeUp 0.8s ease 0.3s forwards;
  opacity: 0;
}

.hero-title {
  animation: heroFadeUp 0.9s ease 0.5s forwards;
  opacity: 0;
}

.hero-subtitle {
  animation: heroFadeUp 0.9s ease 0.7s forwards;
  opacity: 0;
}

.hero-cta {
  animation: heroFadeUp 0.9s ease 0.9s forwards;
  opacity: 0;
}

.hero-scroll {
  animation: heroFadeUp 0.9s ease 1.2s forwards;
  opacity: 0;
}

@keyframes heroFadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-scroll svg {
  animation: scrollBounce 2s ease infinite;
}

@keyframes scrollBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* ─── SCROLL REVEAL ─── */
.scroll-reveal {
  /* Default state: visible for progressive enhancement */
}

@media (prefers-reduced-motion: no-preference) {
  .scroll-reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
  }

  .scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }

  .room-card {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s cubic-bezier(0.22, 1, 0.36, 1), transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
  }

  .room-card.revealed {
    opacity: 1;
    transform: translateY(0);
  }

  .amenity-item {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.5s cubic-bezier(0.22, 1, 0.36, 1), transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
  }

  .amenity-item.revealed {
    opacity: 1;
    transform: translateY(0);
  }

  .testimonial-card {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s cubic-bezier(0.22, 1, 0.36, 1), transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
  }

  .testimonial-card.revealed {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ─── ROOM CARDS ─── */
.room-card {
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.room-card:hover {
  transform: translateY(-4px);
}

/* ─── BUTTONS ─── */
a, button {
  -webkit-tap-highlight-color: transparent;
}

/* ─── FORM ─── */
input:focus, textarea:focus {
  border-color: #c22d4d !important;
  box-shadow: 0 0 0 3px rgba(194, 45, 77, 0.1) !important;
}

/* ─── SCROLLBAR ─── */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: #1c1917;
}

::-webkit-scrollbar-thumb {
  background: #841d37;
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: #a1203c;
}

/* ─── SELECTION ─── */
::selection {
  background: rgba(194, 45, 77, 0.2);
  color: #1c1917;
}