/* ==========================================================================
   SHUBHG9401 // Multi-Dimensional 3D Background Stylesheet
   ========================================================================== */

:root {
  /* Dynamic Neon Palette */
  --bg-color: #020208;
  --primary: #00f0ff;
  --primary-rgb: 0, 240, 255;
  --secondary: #ff007f;
  --secondary-rgb: 255, 0, 127;
  --accent: #7928ca;
  --accent-rgb: 121, 40, 202;

  --text-main: #f0f4ff;
  --text-muted: #8e9bb4;

  /* Typography */
  --font-display: 'Syne', sans-serif;
  --font-body: 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --glass-blur: blur(16px);
}

/* Color Themes */
body[data-theme="void"] {
  --primary: #9d4edd;
  --primary-rgb: 157, 78, 221;
  --secondary: #3a86ff;
  --secondary-rgb: 58, 134, 255;
  --accent: #00f5d4;
  --accent-rgb: 0, 245, 212;
}

body[data-theme="sunset"] {
  --primary: #ff5400;
  --primary-rgb: 255, 84, 0;
  --secondary: #ff0054;
  --secondary-rgb: 255, 0, 84;
  --accent: #9e0059;
  --accent-rgb: 158, 0, 89;
}

body[data-theme="matrix"] {
  --primary: #00ff88;
  --primary-rgb: 0, 255, 136;
  --secondary: #00ffff;
  --secondary-rgb: 0, 255, 255;
  --accent: #0077b6;
  --accent-rgb: 0, 119, 182;
}

/* Global Reset */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  user-select: none;
}

html {
  scroll-behavior: smooth;
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-body);
}

body {
  position: relative;
  min-height: 100vh;
  background: #020208;
  overflow-x: hidden;
}

/* Background Cyber Grid */
.ambient-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background-size: 80px 80px;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}

/* 3D WebGL Canvas */
#webgl-canvas-container {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: auto;
}

#webgl-canvas {
  width: 100vw;
  height: 100vh;
  display: block;
}

/* Custom Magnetic Cursor */
.custom-cursor {
  position: fixed;
  top: 0;
  left: 0;
  width: 36px;
  height: 36px;
  border: 1.5px solid var(--primary);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width 0.25s ease, height 0.25s ease, border-color 0.25s ease, background-color 0.25s ease;
  mix-blend-mode: difference;
}

.custom-cursor-dot {
  position: fixed;
  top: 0;
  left: 0;
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
  pointer-events: none;
  z-index: 10000;
  transform: translate(-50%, -50%);
}

.custom-cursor.hovered {
  width: 60px;
  height: 60px;
  background-color: rgba(var(--primary-rgb), 0.2);
  border-color: var(--secondary);
}

@media (pointer: coarse) {
  .custom-cursor, .custom-cursor-dot {
    display: none !important;
  }
}

.interactive {
  pointer-events: auto !important;
}

/* ==========================================================================
   Preloader
   ========================================================================== */
#preloader {
  position: fixed;
  inset: 0;
  background: #010104;
  z-index: 100000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

#preloader.loaded {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.preloader-core {
  position: relative;
  width: 70px;
  height: 70px;
}

.preloader-ring {
  position: absolute;
  inset: 0;
  border: 2px dashed var(--primary);
  border-radius: 50%;
  animation: spin 5s linear infinite;
}

.preloader-ring-inner {
  position: absolute;
  inset: 12px;
  border: 2px solid var(--secondary);
  border-top-color: transparent;
  border-radius: 50%;
  animation: spinReverse 2.2s linear infinite;
}

.preloader-text {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 3px;
  color: var(--primary);
  text-transform: uppercase;
}

.preloader-progress-bar {
  width: 220px;
  height: 4px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  overflow: hidden;
}

.preloader-progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
}

.preloader-counter {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
@keyframes spinReverse {
  from { transform: rotate(360deg); }
  to { transform: rotate(0deg); }
}

/* ==========================================================================
   Minimal Top Bar HUD
   ========================================================================== */
.hud-topbar {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 40px);
  max-width: 1300px;
  height: 60px;
  background: rgba(6, 7, 16, 0.5);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 100;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 8px;
  color: #000;
  font-weight: 900;
  font-size: 0.85rem;
  box-shadow: 0 0 12px var(--primary);
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  background: linear-gradient(135deg, #ffffff, var(--primary) 70%, var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 20px rgba(var(--primary-rgb), 0.5);
}

.hud-center-telemetry {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--primary);
  letter-spacing: 1px;
}

.pulse-dot {
  width: 7px;
  height: 7px;
  background: var(--primary);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--primary);
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.3; transform: scale(0.7); }
}

.hud-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.hud-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  cursor: pointer;
  transition: all 0.25s ease;
}

.hud-btn:hover {
  background: rgba(var(--primary-rgb), 0.15);
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: 0 0 15px rgba(var(--primary-rgb), 0.3);
}

/* ==========================================================================
   Side Dimension Progress Navigator
   ========================================================================== */
.dimension-nav {
  position: fixed;
  right: 32px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 20px;
  z-index: 100;
}

.dim-nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  opacity: 0.35;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.dim-nav-item:hover, .dim-nav-item.active {
  opacity: 1;
  transform: translateX(-4px);
}

.dim-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #fff;
  transition: background 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
}

.dim-nav-item.active .dim-dot {
  background: var(--primary);
  box-shadow: 0 0 12px var(--primary);
  transform: scale(1.5);
}

.dim-text {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-main);
  letter-spacing: 1px;
}

/* ==========================================================================
   Scroll Container (5 Dimensions Journey)
   ========================================================================== */
.scroll-container {
  position: relative;
  z-index: 10;
  pointer-events: none;
}

.dimension-section {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 0 8vw;
}

.realm-overlay {
  max-width: 650px;
}

.realm-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 3px;
  color: var(--primary);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.realm-title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6.5vw, 5.2rem);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -1.5px;
  background: linear-gradient(135deg, #ffffff 10%, var(--primary) 50%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 16px;
  text-shadow: 0 0 30px rgba(var(--primary-rgb), 0.3);
}

.realm-desc {
  font-size: clamp(1rem, 1.6vw, 1.25rem);
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   Bottom HUD Scroll Guide
   ========================================================================== */
.bottom-scroll-hud {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 16px;
  z-index: 100;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  pointer-events: none;
  background: rgba(6, 7, 16, 0.4);
  backdrop-filter: var(--glass-blur);
  padding: 8px 22px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.scroll-mouse-anim {
  width: 14px;
  height: 22px;
  border: 1.5px solid var(--primary);
  border-radius: 8px;
  position: relative;
}

.scroll-mouse-wheel {
  position: absolute;
  top: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 5px;
  background: var(--primary);
  border-radius: 1px;
  animation: mouseWheel 1.5s infinite;
}

@keyframes mouseWheel {
  0% { transform: translate(-50%, 0); opacity: 1; }
  100% { transform: translate(-50%, 8px); opacity: 0; }
}

.depth-meter {
  color: var(--primary);
  font-weight: 700;
}

/* Mobile Adjustments */
@media (max-width: 768px) {
  .dimension-nav {
    display: none;
  }
  .hud-center-telemetry {
    display: none;
  }
  .dimension-section {
    padding: 0 6vw;
  }
  .realm-title {
    font-size: 2.6rem;
  }
  .bottom-scroll-hud {
    font-size: 0.7rem;
    width: calc(100% - 32px);
    justify-content: center;
  }
}