/* === RESET & BASE === */
*, *::before, *::after {
  box-sizing: border-box;
}

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

body {
  overflow-x: hidden;
}

::selection {
  background: rgba(27, 67, 50, 0.2);
  color: #1B4332;
}

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

/* === NAVBAR === */
.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: currentColor;
  transition: width 0.3s ease;
}

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

/* === HERO ANIMATIONS === */
.hero-subtitle {
  animation: fadeUp 0.8s ease forwards 0.3s;
}

.hero-title {
  animation: fadeUp 1s ease forwards 0.5s;
}

.hero-desc {
  animation: fadeUp 0.8s ease forwards 0.8s;
}

.hero-ctas {
  animation: fadeUp 0.8s ease forwards 1s;
}

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

/* === SECTION HEADERS === */
.section-label {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: #8FB88F;
  margin-bottom: 1rem;
}

.section-title {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: clamp(2.25rem, 5vw, 4rem);
  font-weight: 500;
  line-height: 1.05;
  color: #1B4332;
  margin-bottom: 1.5rem;
}

.section-desc {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 1.1rem;
  line-height: 1.75;
  color: rgba(27, 67, 50, 0.6);
  max-width: 560px;
}

/* === ROOM CARDS === */
.room-card {
  transform: translateY(40px);
  opacity: 0;
  transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.7s ease;
}

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

/* === FEATURE CARDS === */
.feature-card {
  transform: translateY(30px);
  opacity: 0;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.6s ease;
}

.feature-card.visible {
  transform: translateY(0);
  opacity: 1;
}

/* === MOBILE MENU === */
#mobileMenu.open {
  opacity: 1;
  pointer-events: all;
}

#mobileMenu.closed {
  opacity: 0;
  pointer-events: none;
}

.mobile-link {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

#mobileMenu.open .mobile-link {
  opacity: 1;
  transform: translateY(0);
}

#mobileMenu.open .mobile-link:nth-child(1) { transition-delay: 0.1s; }
#mobileMenu.open .mobile-link:nth-child(2) { transition-delay: 0.15s; }
#mobileMenu.open .mobile-link:nth-child(3) { transition-delay: 0.2s; }
#mobileMenu.open .mobile-link:nth-child(4) { transition-delay: 0.25s; }
#mobileMenu.open .mobile-link:nth-child(5) { transition-delay: 0.3s; }

/* === SCROLL REVEAL === */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* === MOBILE MENU ANIMATION === */
#bar1.open {
  transform: rotate(45deg) translate(4px, 4px);
}

#bar2.open {
  opacity: 0;
}

#bar3.open {
  transform: rotate(-45deg) translate(4px, -4px);
}

/* === PARALLAX HERO === */
#hero {
  will-change: transform;
}

/* === FORM STYLES === */
input:focus, textarea:focus {
  outline: none;
}

input::placeholder, textarea::placeholder {
  color: #b9d1bb;
}

/* === RESPONSIVE FINE-TUNING === */
@media (max-width: 640px) {
  .section-title {
    font-size: clamp(2rem, 8vw, 2.75rem);
  }

  .section-desc {
    font-size: 1rem;
  }
}