/* ===== CUSTOM STYLES ===== */

:root {
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'Inter', system-ui, sans-serif;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== NAVIGATION ===== */
#site-header {
  background: transparent;
  transition: background 0.4s ease, box-shadow 0.4s ease, backdrop-filter 0.4s ease;
}

#site-header.scrolled {
  background: rgba(250, 252, 247, 0.88);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  box-shadow: 0 1px 0 rgba(26, 58, 42, 0.06);
}

.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: currentColor;
  transition: width 0.3s ease;
}

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

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

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

.mobile-nav-link {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.3s ease, transform 0.3s ease, color 0.2s ease;
}

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

#mobile-menu.open .mobile-nav-link:nth-child(1) { transition-delay: 0.05s; }
#mobile-menu.open .mobile-nav-link:nth-child(2) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-nav-link:nth-child(3) { transition-delay: 0.15s; }
#mobile-menu.open .mobile-nav-link:nth-child(4) { transition-delay: 0.2s; }

/* ===== HERO ===== */
.hero-bg {
  will-change: transform;
}

.hero-img {
  transition: transform 8s ease;
  transform: scale(1.05);
}

.hero-bg.active .hero-img {
  transform: scale(1);
}

.hero-overlay {
  background-image: linear-gradient(
    to bottom,
    rgba(10, 23, 16, 0.45) 0%,
    rgba(26, 58, 42, 0.35) 50%,
    rgba(10, 23, 16, 0.65) 100%
  );
}

.hero-scroll {
  animation: heroScroll 2s ease forwards;
  animation-delay: 1.8s;
}

@keyframes heroScroll {
  to { opacity: 1; }
}

/* ===== SECTION LABELS ===== */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--forest-500, #4d824d);
}

.section-label::before {
  content: '';
  display: block;
  width: 24px;
  height: 1.5px;
  background: currentColor;
}

/* ===== REVEAL ANIMATIONS ===== */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  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[data-delay="100"] { transition-delay: 0.1s; }
.reveal[data-delay="200"] { transition-delay: 0.2s; }
.reveal[data-delay="300"] { transition-delay: 0.3s; }

/* ===== CARD ELEVATE ===== */
.card-elevate {
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #f4f8ef;
}
::-webkit-scrollbar-thumb {
  background: #b9d0b9;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #8fb88f;
}

/* ===== SELECTION ===== */
::selection {
  background: rgba(77, 130, 77, 0.2);
  color: #1a3a2a;
}

/* ===== FOCUS ===== */
:focus-visible {
  outline: 2px solid #4d824d;
  outline-offset: 2px;
  border-radius: 4px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .font-display {
    word-spacing: -0.02em;
  }
}