/* ── Custom Properties ── */
:root {
  --color-forest-700: #1B4332;
  --color-gold: #D4A843;
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans: 'Inter', system-ui, sans-serif;
}

/* ── Reset & Base ── */
*, *::before, *::after {
  box-sizing: border-box;
}

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

body {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
}

/* ── Animations ── */
@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-up {
  animation: fade-up 0.8s ease-out forwards;
}

/* ── Scroll Reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.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; }

/* ── 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(253, 252, 248, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 20px rgba(27, 67, 50, 0.08);
}

.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-gold);
  transition: width 0.3s ease;
}

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

#site-header.scrolled .nav-link {
  color: var(--color-forest-700);
}

#site-header:not(.scrolled) .nav-link {
  color: rgba(253, 252, 248, 0.85);
}

#site-header:not(.scrolled) .nav-link:hover {
  color: #D4A843;
}

#site-header:not(.scrolled) .nav-link::after {
  background: #D4A843;
}

#site-header:not(.scrolled) .font-serif {
  color: rgba(253, 252, 248, 0.9);
}

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

#mobile-menu.open .mobile-link {
  animation: fade-up 0.4s ease-out forwards;
}

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

.hamburger-line {
  transition: transform 0.3s ease, opacity 0.3s ease;
}

#mobile-toggle.active .hamburger-line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

#mobile-toggle.active .hamburger-line:nth-child(2) {
  opacity: 0;
}

#mobile-toggle.active .hamburger-line:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
  width: 1.5rem;
  margin-left: 0;
}

/* ── Service Cards ── */
.service-card {
  transition: transform 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
}

.service-card:hover {
  transform: translateY(-6px);
}

/* ── Gold accent line on sections ── */
section::before {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-gold), transparent);
  border-radius: 2px;
  margin-bottom: 1.5rem;
}

/* ── Form Focus States ── */
input:focus, select:focus, textarea:focus {
  box-shadow: 0 0 0 3px rgba(27, 67, 50, 0.1);
}

/* ── Selection ── */
::selection {
  background: rgba(27, 67, 50, 0.15);
  color: var(--color-forest-900);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  html {
    scroll-padding-top: 70px;
  }

  #site-header {
    background: rgba(253, 252, 248, 0.97);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 10px rgba(27, 67, 50, 0.06);
  }

  #site-header .nav-link {
    color: var(--color-forest-700) !important;
  }

  #site-header .font-serif {
    color: var(--color-forest-700) !important;
  }
}