:root {
      --deep: #020208;
      --navy: #070b18;
      --gold: #d4af37;
      --cyan: #00f3ff;
      --glass: rgba(8, 14, 32, 0.72);
      --line: rgba(0, 243, 255, 0.22);
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      background: var(--deep);
      color: #e8f6ff;
      font-family: "Exo 2", system-ui, sans-serif;
      overflow-x: hidden;
    }

    .cosmic-space {
      position: fixed;
      inset: 0;
      z-index: -10;
      overflow: hidden;
    }

    #flashScreen {
      position: fixed;
      inset: 0;
      z-index: 9999;
      background: #020208;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      transition: opacity 0.8s ease, visibility 0.8s ease;
    }

    #flashScreen.fade-out {
      opacity: 0;
      visibility: hidden;
    }

    .supernova-flash {
      position: absolute;
      inset: 0;
      background: radial-gradient(circle, rgba(255,255,255,1) 0%, rgba(0,243,255,0.8) 40%, rgba(212,175,55,0.4) 70%, transparent 100%);
      opacity: 0;
      pointer-events: none;
      z-index: 10000;
      transform: scale(0.1);
      transition: none;
    }

    #flashScreen.exploding .supernova-flash {
      animation: supernovaExplode 0.8s cubic-bezier(0.1, 0.9, 0.2, 1) forwards;
    }

    @keyframes supernovaExplode {
      0% { opacity: 1; transform: scale(0.2); filter: brightness(2); }
      50% { opacity: 0.9; transform: scale(1.5); filter: brightness(3); }
      100% { opacity: 0; transform: scale(3); filter: brightness(1); }
    }

    .cyber-grid {
      background-image:
        linear-gradient(rgba(0, 243, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 243, 255, 0.04) 1px, transparent 1px);
      background-size: 50px 50px;
    }

    .scanlines::after {
      content: "";
      pointer-events: none;
      position: fixed;
      inset: 0;
      z-index: 40;
      background: repeating-linear-gradient(
        to bottom,
        transparent 0,
        transparent 2px,
        rgba(2, 2, 8, 0.06) 3px
      );
      mix-blend-mode: overlay;
      opacity: 0.3;
    }

    .glass-panel {
      background: linear-gradient(160deg, rgba(10, 18, 42, 0.85), rgba(4, 8, 20, 0.65));
      border: 1px solid var(--line);
      backdrop-filter: blur(20px) saturate(150%);
      -webkit-backdrop-filter: blur(20px) saturate(150%);
      box-shadow:
        0 0 0 1px rgba(212, 175, 55, 0.08) inset,
        0 20px 50px rgba(0, 0, 0, 0.5),
        0 0 35px rgba(0, 243, 255, 0.08);
      transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .glass-panel:hover {
      transform: translateY(-6px) scale(1.01);
      border-color: rgba(0, 243, 255, 0.8);
      box-shadow:
        0 0 25px rgba(0, 243, 255, 0.5),
        0 0 50px rgba(212, 175, 55, 0.3),
        0 25px 60px rgba(0, 0, 0, 0.7);
    }

    #identity .glass-panel {
      background: linear-gradient(160deg, rgba(15, 23, 42, 0.9), rgba(5, 10, 25, 0.7));
      border-color: rgba(0, 243, 255, 0.3);
    }
    #dynasty article {
      background: linear-gradient(160deg, rgba(20, 16, 8, 0.9), rgba(8, 6, 2, 0.7));
      border-color: rgba(212, 175, 55, 0.25);
    }
    #academy .glass-panel {
      background: linear-gradient(160deg, rgba(8, 24, 32, 0.9), rgba(3, 10, 16, 0.7));
      border-color: rgba(0, 243, 255, 0.25);
    }
    #milestones article {
      background: linear-gradient(160deg, rgba(18, 12, 28, 0.9), rgba(6, 4, 12, 0.7));
      border-color: rgba(212, 175, 55, 0.25);
    }
    #arsenal article {
      background: linear-gradient(160deg, rgba(10, 28, 24, 0.9), rgba(4, 12, 10, 0.7));
      border-color: rgba(0, 243, 255, 0.25);
    }
    #creations article {
      background: linear-gradient(160deg, rgba(26, 18, 8, 0.9), rgba(10, 7, 3, 0.7));
      border-color: rgba(212, 175, 55, 0.3);
    }
    #metrics article {
      background: linear-gradient(160deg, rgba(8, 20, 36, 0.9), rgba(3, 8, 15, 0.7));
      border-color: rgba(0, 243, 255, 0.3);
    }
    #hobby article {
      background: linear-gradient(160deg, rgba(24, 12, 18, 0.9), rgba(10, 4, 8, 0.7));
      border-color: rgba(212, 175, 55, 0.25);
    }
    #future-goals article {
      background: linear-gradient(160deg, rgba(12, 16, 32, 0.9), rgba(5, 7, 14, 0.7));
      border-color: rgba(0, 243, 255, 0.25);
    }
    #vision article {
      background: linear-gradient(160deg, rgba(28, 20, 10, 0.9), rgba(12, 8, 4, 0.7));
      border-color: rgba(212, 175, 55, 0.35);
    }
    #intel article {
      background: linear-gradient(160deg, rgba(8, 22, 28, 0.9), rgba(3, 9, 12, 0.7));
      border-color: rgba(0, 243, 255, 0.3);
    }

    button, a, article, img, .skill-chip {
      transition: all 0.3s ease;
    }

    button:hover, a:hover {
      filter: brightness(1.2);
      text-shadow: 0 0 10px var(--cyan);
      box-shadow: 0 0 20px rgba(0, 243, 255, 0.4);
    }

    .skill-chip:hover {
      background: rgba(0, 243, 255, 0.25);
      border-color: var(--cyan);
      box-shadow: 0 0 20px rgba(0, 243, 255, 0.6);
      transform: translateY(-2px);
    }

    .neon-gold {
      text-shadow: 0 0 20px rgba(212, 175, 55, 0.8), 0 0 40px rgba(212, 175, 55, 0.4);
    }

    .neon-cyan {
      text-shadow: 0 0 18px rgba(0, 243, 255, 0.8), 0 0 35px rgba(0, 243, 255, 0.4);
    }

    .hero-frame {
      position: relative;
      overflow: hidden;
      border: 1px solid rgba(212, 175, 55, 0.45);
      box-shadow:
        0 0 45px rgba(0, 243, 255, 0.2),
        0 0 90px rgba(212, 175, 55, 0.15),
        inset 0 0 45px rgba(0, 243, 255, 0.1);
    }

    .hero-frame::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 35%, rgba(2, 2, 8, 0.85) 100%);
      z-index: 1;
      pointer-events: none;
    }

    .identity-badge {
      border: 3px solid var(--gold);
      box-shadow:
        0 0 0 4px rgba(2, 2, 8, 0.9),
        0 0 30px rgba(0, 243, 255, 0.6),
        0 0 50px rgba(212, 175, 55, 0.4);
    }

    .section-kicker {
      letter-spacing: 0.32em;
    }

    .gold-rule {
      height: 1px;
      background: linear-gradient(90deg, transparent, var(--gold), var(--cyan), transparent);
    }

    /* Top Navbar: Impressive Fixed Navbar */
    #topNavbar {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 75;
      background: rgba(4, 8, 20, 0.92);
      border-bottom: 1px solid rgba(0, 243, 255, 0.3);
      backdrop-filter: blur(20px) saturate(180%);
      -webkit-backdrop-filter: blur(20px) saturate(180%);
      color: #e8f6ff;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 20px rgba(0, 243, 255, 0.2);
      transition: all 0.3s ease;
    }

    /* 3D Floating Brand Style for "Rayaan's Codex" */
    .brand-3d {
      font-family: 'Audiowide', sans-serif;
      font-size: 1.1rem;
      font-weight: 800;
      text-transform: uppercase;
      background: linear-gradient(135deg, #fff 20%, var(--cyan) 60%, var(--gold) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.8)) drop-shadow(0 0 15px rgba(0, 243, 255, 0.6));
      transform: perspective(500px) rotateX(8deg) rotateY(-8deg);
      transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), filter 0.4s ease;
      display: inline-block;
    }
    .brand-3d:hover {
      transform: perspective(500px) rotateX(0deg) rotateY(0deg) scale(1.08);
      filter: drop-shadow(0 6px 12px rgba(0, 0, 0, 0.9)) drop-shadow(0 0 25px rgba(212, 175, 55, 0.8));
    }

    /* Folded Right Drawer */
    #foldedNavDrawer {
      position: fixed;
      top: 0;
      right: 0;
      width: 300px;
      height: 100vh;
      background: rgba(4, 8, 20, 0.98);
      border-left: 1px solid rgba(0, 243, 255, 0.4);
      box-shadow: -10px 0 40px rgba(0, 0, 0, 0.8), 0 0 30px rgba(0, 243, 255, 0.2);
      z-index: 95;
      display: flex;
      flex-direction: column;
      padding: 2rem 1.5rem;
      transform: translateX(100%);
      transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
      overflow-y: auto;
    }
    #foldedNavDrawer.is-open {
      transform: translateX(0);
    }

    #foldedNavOverlay {
      position: fixed;
      inset: 0;
      background: rgba(2, 2, 8, 0.8);
      backdrop-filter: blur(10px);
      z-index: 90;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.4s ease;
    }
    #foldedNavOverlay.is-open {
      opacity: 1;
      pointer-events: auto;
    }

    /* Glassy Transparent Drop-down Menu Card for Smaller Screens */
    #mobileMenuCard {
      position: absolute;
      top: 100%;
      right: 1rem;
      width: 220px;
      background: rgba(8, 14, 32, 0.82);
      border: 1px solid rgba(0, 243, 255, 0.4);
      backdrop-filter: blur(20px) saturate(150%);
      -webkit-backdrop-filter: blur(20px) saturate(150%);
      box-shadow: 0 15px 35px rgba(0, 0, 0, 0.7), 0 0 25px rgba(0, 243, 255, 0.25);
      border-radius: 1rem;
      padding: 1rem;
      display: flex;
      flex-direction: column;
      gap: 0.75rem;
      opacity: 0;
      transform: translateY(-10px);
      pointer-events: none;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      z-index: 80;
    }
    #mobileMenuCard.is-open {
      opacity: 1;
      transform: translateY(10px);
      pointer-events: auto;
    }

    /* Dashboard Segment with Increased margin-top for All Screens */
    #megaMenuOverlay {
      position: fixed;
      inset: 0;
      z-index: 85;
      background: radial-gradient(circle, rgba(220, 230, 245, 0.96) 0%, rgba(190, 205, 230, 0.94) 100%);
      backdrop-filter: blur(25px);
      display: flex;
      flex-direction: column;
      justify-content: flex-start;
      align-items: center;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.4s ease;
      overflow-y: auto;
      color: #0d1b2a;
    }
    #megaMenuOverlay.is-open {
      opacity: 1;
      pointer-events: auto;
    }
    #megaMenuOverlay .glass-panel {
      background: linear-gradient(160deg, rgba(255, 255, 255, 0.9), rgba(230, 240, 255, 0.8));
      border: 1px solid rgba(0, 180, 216, 0.4);
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15), 0 0 25px rgba(0, 180, 216, 0.25);
      color: #0d1b2a;
    }
    #megaMenuOverlay .glass-panel:hover {
      border-color: rgba(0, 180, 216, 0.9);
      box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25), 0 0 35px rgba(0, 180, 216, 0.5);
    }

    /* Enhanced Media Queries for smaller screens: Increased margin-top so the first segment is fully visible without disappearing */
    @media (max-width: 768px) {
      #megaMenuOverlay > div {
        padding-left: 1rem !important;
        padding-right: 1.25rem !important;
        padding-top: 5rem !important; /* Increased padding/margin-top */
        padding-bottom: 5rem !important;
        margin-top: 3rem !important; /* Ensuring first segment is clearly visible */
      }
      #megaMenuOverlay .grid {
        display: flex !important;
        flex-direction: column !important;
        overflow-x: visible !important;
        overflow-y: auto !important;
        scroll-snap-type: none !important;
        gap: 1rem !important;
        padding-bottom: 1.5rem !important;
        padding-top: 1rem !important;
        -webkit-overflow-scrolling: touch;
      }
      #megaMenuOverlay .grid > div {
        min-width: 100% !important;
        max-width: 100% !important;
        flex: 1 1 auto !important;
        scroll-snap-align: none !important;
        margin-bottom: 0 !important;
      }
      /* Precise button section positioning for smaller screens */
      #megaMenuOverlay .flex.flex-wrap.justify-center {
        margin-top: 1.5rem !important;
        gap: 0.75rem !important;
        padding: 0 0.5rem !important;
      }
      #megaMenuOverlay h2 {
        font-size: 1.4rem !important;
        margin-bottom: 1.5rem !important;
      }
    }

    @media (min-width: 769px) {
      #megaMenuOverlay > div {
        margin-top: 4rem; /* Generous margin-top for desktop/larger screens too */
      }
    }

    /* Three.js Dashboard Background Canvas */
    #dashboardCanvas {
      position: absolute;
      inset: 0;
      z-index: 1;
      pointer-events: none;
    }

    .reveal {
      opacity: 0;
      transform: translateY(42px);
      transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

    .timeline-rail {
      position: relative;
    }

    .timeline-rail::before {
      content: "";
      position: absolute;
      left: 15px;
      top: 8px;
      bottom: 8px;
      width: 2px;
      background: linear-gradient(to bottom, var(--gold), var(--cyan));
      box-shadow: 0 0 12px var(--cyan);
    }

    @media (min-width: 768px) {
      .timeline-rail::before {
        left: 50%;
        transform: translateX(-50%);
      }
    }

    .node-dot {
      box-shadow: 0 0 16px var(--cyan);
    }

    .contact-banner {
      background-image:
        linear-gradient(120deg, rgba(2, 2, 8, 0.9), rgba(2, 8, 22, 0.78)),
        url("Contact.jpg");
      background-size: cover;
      background-position: center;
    }

    .skill-chip {
      border: 1px solid rgba(0, 243, 255, 0.28);
      background: rgba(0, 243, 255, 0.06);
    }

    .justify-text {
      text-align: justify;
      text-justify: inter-word;
    }

    ::-webkit-scrollbar {
      width: 10px;
    }

    ::-webkit-scrollbar-track {
      background: #020208;
    }

    ::-webkit-scrollbar-thumb {
      background: linear-gradient(var(--gold), var(--cyan));
      border-radius: 999px;
    }

    #cp-journey-section {
      position: relative;
      height: 700vh;
    }
    .cp-sticky-container {
      position: sticky;
      top: 0;
      height: 100vh;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      overflow: hidden;
      padding: 1rem;
    }

    /* Enhanced Media Query specifically for CP Journey section: decreased side margins/paddings and 95% width on smaller screens */
    @media (max-width: 640px) {
      #cp-journey-section .cp-sticky-container {
        padding-left: 0.25rem !important;
        padding-right: 0.25rem !important;
      }
      #cp-journey-section .w-full.max-w-3xl {
        width: 95% !important;
        max-width: 95% !important;
        padding-left: 0 !important;
        padding-right: 0 !important;
      }
      #cpCard3D {
        padding: 1rem !important;
      }
    }

    .cp-card-3d {
      perspective: 1200px;
      transform-style: preserve-3d;
      transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.6s ease, border-color 0.6s ease;
    }
    .cp-card-inner {
      transform-style: preserve-3d;
      transition: transform 0.6s ease;
    }

    @media (max-width: 640px) {
      body {
        font-size: 14px;
      }
      section {
        padding-left: 1rem !important;
        padding-right: 1rem !important;
        padding-top: 3.5rem !important;
        padding-bottom: 3.5rem !important;
      }
      #topNavbar {
        padding-left: 0.75rem !important;
        padding-right: 0.75rem !important;
      }
      .brand-3d {
        font-size: 0.9rem !important;
      }
      .nav-btn-group {
        white-space: nowrap !important;
        flex-shrink: 0;
      }
    }

    .glass-panel:hover {
      box-shadow: 0 0 35px rgba(0, 243, 255, 0.6), 0 0 60px rgba(212, 175, 55, 0.4), inset 0 0 15px rgba(0, 243, 255, 0.3);
      border-color: var(--cyan);
      transform: translateY(-8px) scale(1.02);
    }

#tech-stacks .skill-chip {
  display: inline-block;
  padding: 0.35rem 0.75rem;   /* just enough space */
  font-size: 0.85rem;
  line-height: 1.2;
  border-radius: 9999px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.15);
  white-space: nowrap;
}

#tech-stacks .flex.flex-wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between; /* chips spread evenly */
  gap: 0.5rem;                     /* balanced spacing */
}

/* Default: cards in flex grid (3 columns on large screens) */
#tech-stacks article {
  flex: 1;
  min-width: 300px;
  max-width: 400px;
}

/* On smaller screens (phones/tablets), cards expand to 95% width */
@media (max-width: 768px) {
  #tech-stacks article {
    flex: none;
    width: 95%;
    max-width: none;
    margin: 0 auto; /* center the card */
  }
}