/* ─── Base & Utilities ─── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; }

.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;
}

.skip-link {
  position: absolute; top: -100%; left: 50%; transform: translateX(-50%);
  z-index: 9999; padding: 0.75rem 1.5rem; background: #ff6b6b;
  color: white; border-radius: 0 0 0.75rem 0.75rem; font-weight: 600;
  transition: top 0.2s;
}
.skip-link:focus { top: 0; }

/* ─── Navbar ─── */
.nav-scrolled {
  background: rgba(254, 253, 248, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 rgba(0,0,0,0.06), 0 4px 24px rgba(0,0,0,0.04);
}

.nav-scrolled .nav-link { color: #4a4a56; }
.nav-scrolled .font-serif { color: #2d2d36; }

#navbar { transition: background 0.4s, box-shadow 0.4s, padding 0.4s; }

/* Mobile menu */
.menu-icon-open { transition: opacity 0.2s; }
.menu-icon-close { transition: opacity 0.2s; }
#mobile-menu.open {
  translate: 0 0;
  opacity: 1;
  pointer-events: auto;
}
#mobile-menu.closed {
  translate: 0 -10px;
  opacity: 0;
  pointer-events: none;
}

/* ─── Inputs ─── */
.input-field {
  font-family: 'Outfit', system-ui, sans-serif;
  font-size: 0.9375rem;
}
.input-field:focus {
  border-color: #ff8a75;
  box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.15);
}
.input-field option { font-family: 'Outfit', system-ui, sans-serif; }

/* ─── Buttons ─── */
.btn-primary {
  font-family: 'Outfit', system-ui, sans-serif;
  font-weight: 600;
  letter-spacing: 0.01em;
  position: relative;
  overflow: hidden;
}
.btn-primary::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, transparent 60%);
  pointer-events: none;
}

/* ─── Back to Top ─── */
.back-to-top {
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.3s, translate 0.3s, background 0.2s, box-shadow 0.3s;
}
.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  translate: 0 0;
}
.back-to-top:hover {
  box-shadow: 0 8px 24px rgba(255, 107, 107, 0.4);
}

/* ─── Scroll Animations ─── */
.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);
}
.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; }

/* ─── Responsive tweaks ─── */
@media (max-width: 640px) {
  .font-serif { line-height: 1.15; }
}