/* ===== BASE ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { margin: 0; overflow-x: hidden; }

/* ===== NAVBAR ===== */
#navbar {
  background: transparent;
  transition: background 0.4s ease, box-shadow 0.4s ease, padding 0.4s ease;
}
#navbar.scrolled {
  background: rgba(7, 14, 24, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(201, 168, 76, 0.1);
  padding: 0;
}
.nav-link { position: relative; }
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: #c9a84c;
  transition: width 0.3s ease;
}
.nav-link:hover::after { width: 100%; }

/* ===== MOBILE MENU ===== */
#mobileMenu {
  animation: slideDown 0.3s ease;
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}
.mobile-link { border-radius: 8px; padding-left: 12px; }
.mobile-link:hover { background: rgba(201, 168, 76, 0.05); }

/* ===== HERO FLOATING CARDS ===== */
.floating-card-1 { animation: float1 6s ease-in-out infinite; }
.floating-card-2 { animation: float2 7s ease-in-out infinite; }
.floating-card-3 { animation: float3 5.5s ease-in-out infinite; }
.floating-card-4 { animation: float4 6.5s ease-in-out infinite; }

@keyframes float1 {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-15px) rotate(1deg); }
}
@keyframes float2 {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(-1deg); }
}
@keyframes float3 {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-12px) rotate(0.5deg); }
}
@keyframes float4 {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-18px) rotate(-0.5deg); }
}

/* ===== MENU TABS ===== */
.tab-btn {
  padding: 10px 22px;
  border-radius: 100px;
  border: 1px solid rgba(100, 116, 139, 0.3);
  background: transparent;
  color: #94a3b8;
  font-family: 'Raleway', sans-serif;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: all 0.3s ease;
}
.tab-btn:hover {
  border-color: rgba(201, 168, 76, 0.5);
  color: #d4a843;
  background: rgba(201, 168, 76, 0.05);
}
.tab-btn.active {
  background: rgba(201, 168, 76, 0.15);
  border-color: rgba(201, 168, 76, 0.6);
  color: #c9a84c;
}
.menu-item {
  transition: all 0.3s ease;
}
.menu-item:hover {
  border-color: rgba(201, 168, 76, 0.3) !important;
  background: rgba(201, 168, 76, 0.03) !important;
  transform: translateY(-2px);
}

/* ===== GALLERY ===== */
.gallery-item {
  cursor: pointer;
  transition: transform 0.3s ease;
}
.gallery-item:hover { transform: scale(1.02); }

/* ===== BACK TO TOP ===== */
.back-to-top {
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.back-to-top.visible {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

/* ===== SCROLL ANIMATIONS ===== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible {
  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; }

/* ===== CUSTOM SCROLLBAR ===== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #070e18; }
::-webkit-scrollbar-thumb { background: #1a2d42; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #2d4a5c; }

/* ===== SELECTION ===== */
::selection { background: rgba(201, 168, 76, 0.3); color: #f1f5f9; }