/* ==========================================================================
   NAVE - Official Landing Page Style Sheet
   ========================================================================== */

/* Custom Resets & Base Behavior */
html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px; /* Accounts for the sticky header height during anchor jumps */
}

body {
  background-color: #131313;
  color: #e5e2e1;
  overflow-x: hidden;
}

/* Custom Scrollbar Styles */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: #0e0e0e;
}
::-webkit-scrollbar-thumb {
  background: #353534;
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: #00f0ff;
}

/* Glassmorphism Cards */
.glass-card {
  background: rgba(32, 31, 31, 0.4);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.glass-card:hover {
  background: rgba(42, 42, 42, 0.6);
  border-color: rgba(0, 240, 255, 0.3);
  box-shadow: 0 0 25px rgba(0, 240, 255, 0.15);
}

/* Social Icon Hover Transitions */
.social-icon {
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.social-icon:hover {
  transform: scale(1.15);
  color: #00f0ff;
  filter: drop-shadow(0 0 8px rgba(0, 240, 255, 0.6));
}

/* Material Icons Setup */
.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

/* Video Overlay Gradient */
.video-overlay {
  background: linear-gradient(to top, rgba(19, 19, 19, 0.95) 0%, transparent 60%);
}

/* Sticky Header Transitions */
header {
  transition: background-color 0.4s cubic-bezier(0.4, 0, 0.2, 1), 
              padding 0.4s cubic-bezier(0.4, 0, 0.2, 1),
              border-color 0.4s cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

header.sticky-active {
  background-color: rgba(19, 19, 19, 0.85) !important;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(59, 73, 75, 0.3);
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.7);
}

header.sticky-active .nav-container {
  padding-top: 0.5rem !important;
  padding-bottom: 0.5rem !important;
}

/* Mobile Hamburger Menu Animations */
.hamburger-line {
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), 
              opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hamburger-btn.is-active .line-1 {
  transform: translateY(6px) rotate(45deg);
}

.hamburger-btn.is-active .line-2 {
  opacity: 0;
  transform: scale(0.5);
}

.hamburger-btn.is-active .line-3 {
  transform: translateY(-6px) rotate(-45deg);
}

/* Mobile Drawer Overlay */
.mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(14, 14, 14, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 40;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease, transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  transform: translateY(-20px);
}

.mobile-menu-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

/* Fade-In Animations (Intersection Observer) */
.fade-in-section {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1), 
              transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
  will-change: transform, opacity;
}

.fade-in-section.is-visible {
  opacity: 1;
  transform: translateY(0);
}