/* ═══════════════════════════════════════════════════════════
   Resource 33 — Custom Styles
   ═══════════════════════════════════════════════════════════ */

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
}

::selection {
  background-color: #c8a96e;
  color: #0d3b3e;
}

/* ── Skip Link ── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 100;
  padding: 0.75rem 1.5rem;
  background: #0d3b3e;
  color: #f6f7f8;
  font-size: 0.875rem;
  border-radius: 0 0 0.5rem 0.5rem;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 0;
}

/* ── Navigation ── */
#site-header {
  background: transparent;
  transition: background 0.4s ease, box-shadow 0.4s ease;
}

#site-header.scrolled {
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}

.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: #c8a96e;
  transition: width 0.3s ease;
}

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

#site-header.scrolled .nav-link {
  color: #424956;
}

#site-header.scrolled .nav-link:hover {
  color: #0d4a4d;
}

/* ── Gold Button ── */
.btn-gold {
  background: linear-gradient(135deg, #d4943a 0%, #c47d2c 100%);
  color: #0d3b3e;
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.3s ease;
  box-shadow: 0 4px 14px rgba(212, 148, 58, 0.3);
}

.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(212, 148, 58, 0.4);
  background: linear-gradient(135deg, #e0a844 0%, #d4943a 100%);
}

.btn-gold:active {
  transform: translateY(0);
}

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

.menu-line {
  display: block;
}

#menu-toggle[aria-expanded="true"] .menu-line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

#menu-toggle[aria-expanded="true"] .menu-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

#menu-toggle[aria-expanded="true"] .menu-line:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
  width: 1.25rem;
}

.mobile-link {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.4s ease, transform 0.4s ease, color 0.3s ease;
}

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

#mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.05s; }
#mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.2s; }
#mobile-menu.open .mobile-link:nth-child(5) { transition-delay: 0.25s; }

/* ── Scroll Reveal ── */
.reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(28px);
  }
}

/* Stagger children */
.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; }

/* ── Back to Top ── */
#back-to-top.visible {
  opacity: 1;
  translate: 0;
  pointer-events: all;
}

/* ── Focus Styles ── */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid #c8a96e;
  outline-offset: 2px;
  border-radius: 4px;
}

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