/* ========== BASE & RESET ========== */
*, *::before, *::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background: rgba(20, 184, 166, 0.3);
  color: #f1f5f9;
}

/* ========== GOLD BUTTON ========== */
.gold-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.6rem;
  background: linear-gradient(135deg, #d4a853 0%, #c9a227 50%, #b8941f 100%);
  color: #0f172a;
  font-weight: 600;
  font-size: 0.875rem;
  border-radius: 0.75rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(212, 168, 83, 0.25), 0 1px 3px rgba(212, 168, 83, 0.15);
  position: relative;
  overflow: hidden;
}

.gold-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, transparent 50%);
  border-radius: inherit;
}

.gold-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(212, 168, 83, 0.35), 0 2px 6px rgba(212, 168, 83, 0.2);
}

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

/* ========== NAVBAR ========== */
#navbar {
  background: rgba(6, 13, 20, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.06);
}

#navbar.scrolled {
  background: rgba(6, 13, 20, 0.92);
  border-bottom-color: rgba(20, 184, 166, 0.1);
  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: #2dd4bf;
  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-link {
  transition: all 0.3s ease;
}

/* Hamburger animation */
#menu-btn.active #hamburger span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

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

/* ========== HERO ANIMATIONS ========== */
.hero-anim {
  opacity: 0;
  transform: translateY(24px);
  animation: heroFadeIn 0.7s ease forwards;
}

.hero-anim:nth-child(1) { animation-delay: 0.1s; }
.hero-anim:nth-child(2) { animation-delay: 0.25s; }
.hero-anim:nth-child(3) { animation-delay: 0.4s; }
.hero-anim:nth-child(4) { animation-delay: 0.55s; }
.hero-anim:nth-child(5) { animation-delay: 0.7s; }

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

.hero-img-anim {
  opacity: 0;
  transform: translateX(30px);
  animation: heroImgIn 0.9s ease 0.3s forwards;
}

@keyframes heroImgIn {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Scroll dot animation */
@keyframes scrollDot {
  0% { top: 0; opacity: 0; }
  20% { opacity: 1; }
  80% { opacity: 1; }
  100% { top: 100%; opacity: 0; }
}

.animate-scroll-dot {
  animation: scrollDot 1.8s ease-in-out infinite;
}

/* ========== SCROLL REVEAL ========== */
.reveal-up,
.reveal-left,
.reveal-right {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: no-preference) {
  .reveal-up {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.7s ease, transform 0.7s ease;
  }

  .reveal-left {
    opacity: 0;
    transform: translateX(-32px);
    transition: opacity 0.7s ease, transform 0.7s ease;
  }

  .reveal-right {
    opacity: 0;
    transform: translateX(32px);
    transition: opacity 0.7s ease, transform 0.7s ease;
  }

  .reveal-up.revealed,
  .reveal-left.revealed,
  .reveal-right.revealed {
    opacity: 1;
    transform: none;
  }
}

/* ========== MENU CARDS ========== */
.menu-card {
  background: linear-gradient(145deg, rgba(20, 32, 43, 0.8) 0%, rgba(15, 26, 36, 0.9) 100%);
  border: 1px solid rgba(148, 163, 184, 0.08);
  border-radius: 1.25rem;
  padding: 0.5rem;
  transition: all 0.4s ease;
}

.menu-card:hover {
  border-color: rgba(20, 184, 166, 0.2);
  transform: translateY(-4px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(20, 184, 166, 0.1);
}

/* ========== FOCUS STYLES ========== */
input:focus,
textarea:focus,
button:focus,
a:focus {
  outline: none;
}

/* ========== SCROLLBAR ========== */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #0a1219;
}

::-webkit-scrollbar-thumb {
  background: #1e293b;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #334155;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 640px) {
  .gold-btn {
    width: 100%;
    justify-content: center;
  }
}