/* ============================================
   A & B Tree Service — Custom Styles
   Premium Dark Luxury Theme
   ============================================ */

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

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

body {
  overflow-x: hidden;
}

::selection {
  background: rgba(212, 160, 23, 0.3);
  color: #faf5e8;
}

/* ---- Gold Button ---- */
.gold-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #d4a017 0%, #b8860b 100%);
  color: #022c22;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  box-shadow: 0 4px 20px rgba(212, 160, 23, 0.25);
  overflow: hidden;
}

.gold-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #f0c040 0%, #d4a017 100%);
  transition: left 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  z-index: 0;
}

.gold-btn:hover::before {
  left: 0;
}

.gold-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(212, 160, 23, 0.4);
}

.gold-btn span,
.gold-btn svg,
.gold-btn > * {
  position: relative;
  z-index: 1;
}

/* ---- Service Cards ---- */
.service-card {
  position: relative;
  overflow: hidden;
}

.service-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #d4a017, #f0c040);
  transition: width 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.service-card:hover::after {
  width: 100%;
}

/* ---- Gallery Items ---- */
.gallery-item {
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.gallery-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(6, 78, 59, 0.4) 0%, rgba(2, 44, 34, 0.6) 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.gallery-item:hover::after {
  opacity: 1;
}

/* ---- Hero Animations ---- */
.hero-content {
  animation: heroFadeUp 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
  opacity: 0;
  transform: translateY(40px);
}

@keyframes heroFadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---- Scroll Line ---- */
.scroll-line {
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(1.2); }
}

/* ---- Scroll Animations ---- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.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; }
.reveal-delay-6 { transition-delay: 0.6s; }

/* ---- Navbar ---- */
#navbar.scrolled {
  background: rgba(2, 44, 34, 0.95);
  backdrop-filter: blur(20px);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

#navbar.scrolled .menu-line {
  background: #faf5e8;
}

/* ---- Mobile Menu ---- */
.mobile-link {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

#mobileMenu.open .mobile-link:nth-child(1) { transition-delay: 0.1s; }
#mobileMenu.open .mobile-link:nth-child(2) { transition-delay: 0.15s; }
#mobileMenu.open .mobile-link:nth-child(3) { transition-delay: 0.2s; }
#mobileMenu.open .mobile-link:nth-child(4) { transition-delay: 0.25s; }
#mobileMenu.open .mobile-link:nth-child(5) { transition-delay: 0.3s; }

/* ---- Mobile Menu Button ---- */
#menuBtn.active .menu-line:nth-child(1) {
  transform: rotate(45deg) translate(4px, 4px);
}

#menuBtn.active .menu-line:nth-child(2) {
  opacity: 0;
}

#menuBtn.active .menu-line:nth-child(3) {
  transform: rotate(-45deg) translate(4px, -4px);
  width: 1.5rem;
}

/* ---- Custom Select ---- */
select {
  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='%23d4a017' stroke-width='2' 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;
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .font-serif.text-5xl {
    font-size: 2.5rem;
  }

  .font-serif.text-4xl {
    font-size: 2rem;
  }
}

@media (min-width: 768px) and (max-width: 1024px) {
  .font-serif.text-6xl {
    font-size: 3.5rem;
  }
}