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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

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

::selection {
  background: rgba(0, 201, 167, 0.3);
  color: #E5EFF7;
}

/* ========== NAVBAR ========== */
#navbar {
  background: transparent;
  transition: background 0.3s ease, box-shadow 0.3s ease, backdrop-filter 0.3s ease;
}

#navbar.scrolled {
  background: rgba(4, 11, 20, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 rgba(255,255,255,0.06);
}

/* ========== MOBILE MENU ========== */
#mobile-menu {
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

#mobile-menu.open {
  opacity: 1;
  visibility: visible;
}

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

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

#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; }

.menu-line {
  display: block;
}

#menu-btn.active .menu-line:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}

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

#menu-btn.active .menu-line:nth-child(3) {
  transform: translateY(-4px) rotate(-45deg);
  width: 24px;
  margin: 0;
}

/* ========== GEO SHAPES ========== */
.geo-shape {
  position: absolute;
  pointer-events: none;
}

.geo-circle {
  border-radius: 50%;
  background: #00C9A7;
}

.geo-diamond {
  background: #00C9A7;
  transform: rotate(45deg);
}

.geo-triangle {
  width: 0 !important;
  height: 0 !important;
  background: transparent !important;
  border-left: 100px solid transparent;
  border-right: 100px solid transparent;
  border-bottom: 173px solid rgba(0, 201, 167, 0.04);
}

/* ========== FLOAT ANIMATION ========== */
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-12px); }
}

.animate-float {
  animation: float 4s ease-in-out infinite;
}

/* ========== BOUNCE SLOW ========== */
@keyframes bounce-slow {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

.animate-bounce-slow {
  animation: bounce-slow 2.5s ease-in-out infinite;
}

/* ========== MARQUEE ========== */
@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.animate-marquee {
  animation: marquee 30s linear infinite;
}

/* ========== FEATURE CARDS ========== */
.feature-card {
  position: relative;
}

.feature-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: #00C9A7;
  transition: width 0.3s ease;
}

.feature-card:hover::after {
  width: 60%;
}

/* ========== MENU CARDS ========== */
.menu-card {
  position: relative;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.menu-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(0, 201, 167, 0.15);
}

/* ========== GALLERY ========== */
.gallery-item {
  position: relative;
  cursor: pointer;
}

.gallery-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(4, 11, 20, 0.4) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.3s ease;
  border-radius: inherit;
}

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

/* ========== SCROLL REVEAL (progressive enhancement) ========== */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
  }

  .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; }
}

/* ========== RESPONSIVE ========== */
@media (max-width: 767px) {
  .font-heading {
    font-size: clamp(2rem, 8vw, 3.5rem);
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .menu-card {
    padding: 2rem !important;
  }
}

/* ========== FOCUS ========== */
a:focus-visible,
button:focus-visible {
  outline: 2px solid #00C9A7;
  outline-offset: 2px;
  border-radius: 4px;
}

/* ========== REDUCED MOTION ========== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html {
    scroll-behavior: auto;
  }
}