/* ===== BASE & UTILITIES ===== */
html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
}

::selection {
  background-color: #1B4332;
  color: #FDFCF8;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #F5F2E8;
}
::-webkit-scrollbar-thumb {
  background: #a8d4ab;
  border-radius: 9999px;
}
::-webkit-scrollbar-thumb:hover {
  background: #6fbd76;
}

/* ===== SCROLL REVEAL (progressive enhancement) ===== */
@media (prefers-reduced-motion: no-preference) {
  .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; }
}

/* Fallback: ensure content is visible without JS */
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ===== NAV SCROLL STATE ===== */
#nav.scrolled {
  background-color: rgba(253, 252, 248, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 20px rgba(27, 67, 50, 0.08);
}

/* ===== MOBILE MENU ===== */
#mobile-menu {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}
#mobile-menu.open {
  max-height: 400px;
}

.mobile-link {
  position: relative;
}
.mobile-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: #1B4332;
  transition: width 0.25s ease;
}
.mobile-link:hover::after {
  width: 100%;
}

/* ===== BACK TO TOP ===== */
#back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

/* ===== IMAGE HOVER ===== */
.rounded-3xl.overflow-hidden img {
  display: block;
}

/* ===== FOCUS VISIBLE ===== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid #1B4332;
  outline-offset: 2px;
  border-radius: 4px;
}

/* ===== SELECT ARROW ===== */
select.appearance-none {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%231B4332' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}