/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { margin: 0; overflow-x: hidden; }
img { max-width: 100%; height: auto; display: block; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #f6f6f7; }
::-webkit-scrollbar-thumb { background: #c4c6ca; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #a1a5ab; }

/* ── Navbar ── */
#navbar {
  background: rgba(254, 253, 248, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(196, 198, 202, 0.3);
}
#navbar.scrolled {
  background: rgba(254, 253, 248, 0.95);
  box-shadow: 0 1px 20px rgba(55, 65, 81, 0.06);
}

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

/* ── Hero Scroll Indicator ── */
@keyframes scrollDown {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(100%); }
}
.animate-scroll-down {
  animation: scrollDown 1.5s ease-in-out infinite;
}

/* ── Service Cards ── */
.service-card {
  transform: translateY(0);
}
.service-card:hover {
  transform: translateY(-4px);
}

/* ── Gallery Items ── */
.gallery-item {
  cursor: pointer;
}
.gallery-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15, 19, 25, 0.2) 0%, transparent 50%);
  border-radius: inherit;
  opacity: 0;
  transition: opacity 0.4s ease;
}
.gallery-item:hover::after {
  opacity: 1;
}

/* ── Scroll Reveal (progressive enhancement) ── */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  }
  .reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }
  .reveal-delay-1 { transition-delay: 0.1s; }
  .reveal-delay-2 { transition-delay: 0.2s; }
  .reveal-delay-3 { transition-delay: 0.3s; }
  .reveal-delay-4 { transition-delay: 0.4s; }
  .reveal-delay-5 { transition-delay: 0.5s; }
}

/* ── Selection ── */
::selection {
  background: rgba(249, 112, 102, 0.2);
  color: #1a1f2b;
}

/* ── Focus Visible ── */
:focus-visible {
  outline: 2px solid #F97066;
  outline-offset: 2px;
}

/* ── Utility ── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}