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

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

body {
  margin: 0;
  overflow-x: hidden;
}

::selection {
  background: rgba(13, 148, 136, 0.15);
  color: #0f766e;
}

/* ── Mobile Menu ── */
#mobile-menu {
  animation: menuSlideIn 0.35s ease forwards;
}

@keyframes menuSlideIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

#mobile-menu.hidden {
  display: none;
}

/* ── Header ── */
#site-header.scrolled {
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}

#site-header.scrolled .header-ink {
  color: #1e293b;
}

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

/* ── Scroll Reveal ── */
.reveal {
  opacity: 1;
  transform: none;
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal-left {
  opacity: 1;
  transform: none;
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal-right {
  opacity: 1;
  transform: none;
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

@media (prefers-reduced-motion: no-preference) {
  .reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }

  .reveal-left.revealed {
    opacity: 1;
    transform: translateX(0);
  }

  .reveal-right.revealed {
    opacity: 1;
    transform: translateX(0);
  }

  .reveal {
    opacity: 0;
    transform: translateY(32px);
  }

  .reveal-left {
    opacity: 0;
    transform: translateX(-32px);
  }

  .reveal-right {
    opacity: 0;
    transform: translateX(32px);
  }
}

/* ── Hero entrance animations ── */
.hero-eyebrow {
  animation: heroFadeUp 0.8s 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.hero-headline {
  animation: heroFadeUp 0.9s 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.hero-sub {
  animation: heroFadeUp 0.9s 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.hero-cta {
  animation: heroFadeUp 0.9s 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

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

/* ── Service Cards ── */
.service-card {
  transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              box-shadow 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

/* ── Form ── */
#contact-form input:focus,
#contact-form select:focus,
#contact-form textarea:focus {
  outline: none;
}

/* ── Scroll indicator ── */
.scroll-indicator {
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; transform: translate(-50%, 0); }
  50% { opacity: 0.8; transform: translate(-50%, 6px); }
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html {
    scroll-behavior: auto;
  }
}