*, *::before, *::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  overflow-x: hidden;
}

::selection {
  background: rgba(20, 184, 166, 0.3);
  color: #f0fdfa;
}

/* HERO GRADIENT */
.hero-gradient {
  background:
    radial-gradient(ellipse 80% 60% at 20% 40%, rgba(13, 148, 136, 0.5) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 30%, rgba(251, 191, 36, 0.25) 0%, transparent 55%),
    radial-gradient(ellipse 70% 60% at 50% 80%, rgba(13, 148, 136, 0.3) 0%, transparent 50%),
    linear-gradient(160deg, #042f2e 0%, #0a1628 40%, #0f0a1e 70%, #1a0a2e 100%);
}

.hero-img {
  mix-blend-mode: luminosity;
}

/* NAV */
#site-header {
  background: transparent;
}

#site-header.scrolled {
  background: rgba(6, 11, 24, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: linear-gradient(90deg, #2dd4bf, #fbbf24);
  transition: width 0.3s ease;
}

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

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

#mobile-menu.open .mobile-link {
  animation: slideIn 0.4s ease forwards;
  opacity: 1;
}

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

@keyframes slideIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

.menu-line {
  display: block;
  width: 24px;
  height: 2px;
  background: white;
  border-radius: 2px;
  transition: all 0.3s ease;
}

#menu-btn.active .menu-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

#menu-btn.active .menu-line:nth-child(3) {
  width: 24px;
  transform: rotate(-45deg) translate(5px, -5px);
}

/* HERO ANIMATIONS */
.hero-badge {
  opacity: 0;
  animation: fadeUp 0.8s ease 0.2s forwards;
}

.hero-title {
  opacity: 0;
  animation: fadeUp 0.9s ease 0.4s forwards;
}

.hero-subtitle {
  opacity: 0;
  animation: fadeUp 0.9s ease 0.6s forwards;
}

.hero-ctas {
  opacity: 0;
  animation: fadeUp 0.9s ease 0.8s forwards;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* BUTTONS */
.cta-primary {
  position: relative;
  overflow: hidden;
}

.cta-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}

.cta-primary:hover::before {
  transform: translateX(100%);
}

.cta-secondary:hover {
  border-color: rgba(251, 191, 36, 0.5);
  box-shadow: 0 0 30px rgba(251, 191, 36, 0.1);
}

/* GOLD LINE */
.gold-line {
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, transparent, #fbbf24, transparent);
  display: block;
}

/* PRODUCT CARDS */
.product-card {
  will-change: transform;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 40px rgba(20, 184, 166, 0.1);
}

/* REVEAL (progressive enhancement — hidden by default, shown via JS) */
.reveal {
  opacity: 1;
  transform: none;
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(40px);
  }
  .reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }
}

/* SCROLLBAR */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #060b18;
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, #0d9488, #115e59);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, #14b8a6, #0d9488);
}

/* MAP INVERT FIX */
iframe[title] {
  border-radius: 14px;
}

/* FOCUS */
a:focus-visible, button:focus-visible {
  outline: 2px solid #2dd4bf;
  outline-offset: 4px;
  border-radius: 4px;
}