/* ==========================================================================
   AETHER // Kinetic Interface Laboratory
   Comprehensive Styling & Animation Engine
   ========================================================================== */

:root {
  /* Color Palette */
  --bg-dark: #07090e;
  --bg-card: rgba(18, 22, 34, 0.7);
  --bg-card-hover: rgba(26, 32, 50, 0.85);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-highlight: rgba(255, 255, 255, 0.2);

  --text-primary: #f0f4fc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  /* Theme Accents (Default: Aurora) */
  --accent-cyan: #00f2fe;
  --accent-magenta: #fe0979;
  --accent-violet: #8a2be2;
  --accent-purple: #7928ca;
  --accent-orange: #ff6b35;
  --accent-emerald: #10b981;

  /* Dynamic Accent for Brand & Highlights */
  --primary-accent: #00f2fe;
  --primary-accent-glow: rgba(0, 242, 254, 0.35);

  /* Fonts */
  --font-main: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-display: 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Easing */
  --ease-elastic: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-smooth: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-snappy: cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* Palette variations */
body.theme-sunset {
  --primary-accent: #ff6b35;
  --primary-accent-glow: rgba(255, 107, 53, 0.4);
}
body.theme-cyber {
  --primary-accent: #fe0979;
  --primary-accent-glow: rgba(254, 9, 121, 0.4);
}
body.theme-matrix {
  --primary-accent: #10b981;
  --primary-accent-glow: rgba(16, 185, 129, 0.4);
}

/* Base Reset & Setup */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-dark);
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Background Canvas */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  opacity: 0.65;
}

/* Ambient Floating Glow Blobs */
.ambient-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.35;
  transition: transform 12s ease-in-out;
}
.glow-1 {
  top: -10%;
  left: 10%;
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(0, 242, 254, 0.3) 0%, transparent 70%);
  animation: floatOrb 18s infinite alternate ease-in-out;
}
.glow-2 {
  top: 40%;
  right: -5%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(254, 9, 121, 0.25) 0%, transparent 70%);
  animation: floatOrb 22s infinite alternate-reverse ease-in-out;
}
.glow-3 {
  bottom: -15%;
  left: 30%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(121, 40, 202, 0.3) 0%, transparent 70%);
  animation: floatOrb 25s infinite alternate ease-in-out;
}

@keyframes floatOrb {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(40px, -50px) scale(1.15); }
  100% { transform: translate(-30px, 40px) scale(0.9); }
}

/* ==========================================================================
   Navigation Bar
   ========================================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 76px;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(7, 9, 14, 0.75);
  border-bottom: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.nav-container {
  max-width: 1280px;
  height: 100%;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
  color: var(--text-primary);
}

.logo-symbol {
  width: 34px;
  height: 34px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.symbol-core {
  width: 12px;
  height: 12px;
  border-radius: 4px;
  background: var(--primary-accent);
  box-shadow: 0 0 14px var(--primary-accent-glow);
  transform: rotate(45deg);
  transition: all 0.4s var(--ease-elastic);
}
.symbol-ring {
  position: absolute;
  inset: 0;
  border: 1.5px solid rgba(255, 255, 255, 0.3);
  border-radius: 8px;
  animation: spinSlow 12s linear infinite;
}
.brand-logo:hover .symbol-core {
  transform: rotate(225deg) scale(1.2);
}
@keyframes spinSlow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.brand-text {
  display: flex;
  flex-direction: column;
}
.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.08em;
}
.brand-accent {
  color: var(--primary-accent);
}
.brand-tagline {
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.15em;
  font-weight: 600;
}

.nav-links {
  display: flex;
  gap: 1.75rem;
}
.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.4rem 0.8rem;
  border-radius: 8px;
  transition: all 0.25s ease;
}
.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.nav-controls {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.control-pill {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  font-family: var(--font-main);
  font-size: 0.8rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  transition: all 0.2s ease;
}
.control-pill:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  border-color: var(--border-highlight);
  transform: translateY(-1px);
}
.control-pill:active {
  transform: translateY(0);
}

.sound-icon svg {
  width: 15px;
  height: 15px;
}
.control-pill.muted .sound-icon svg {
  opacity: 0.4;
}

.color-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--primary-accent);
  box-shadow: 0 0 8px var(--primary-accent);
}

/* ==========================================================================
   Hero Section Layout
   ========================================================================== */
.hero-section {
  position: relative;
  z-index: 10;
  padding-top: 8.5rem;
  padding-bottom: 5rem;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 1.1rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  margin-bottom: 1.8rem;
}
.badge-pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--primary-accent);
  box-shadow: 0 0 10px var(--primary-accent);
  animation: pulseGlow 1.8s infinite;
}
@keyframes pulseGlow {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}
.badge-text {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 1.4rem;
}

.gradient-text {
  background: linear-gradient(135deg, #ffffff 0%, var(--primary-accent) 50%, var(--accent-magenta) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.hero-subtitle {
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 760px;
  margin: 0 auto 3.5rem auto;
  line-height: 1.7;
}

/* ==========================================================================
   4 ANIMATED BUTTONS SHOWCASE GRID
   ========================================================================== */
.buttons-showcase-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin-bottom: 3.5rem;
}

.button-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 2.2rem 1.8rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  overflow: hidden;
  transition: all 0.35s var(--ease-smooth);
}
.button-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(255, 255, 255, 0.16);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.button-card-header {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2.2rem;
  font-size: 0.8rem;
  font-family: var(--font-mono);
}
.btn-idx {
  color: var(--primary-accent);
  font-weight: 700;
}
.btn-type {
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.button-stage {
  min-height: 110px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.card-caption {
  margin-top: 2rem;
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: center;
}
.card-caption .tag {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

/* Base button properties */
.btn-anim {
  border: none;
  background: transparent;
  cursor: pointer;
  outline: none;
  user-select: none;
  font-family: var(--font-main);
  position: relative;
}

/* ==========================================================================
   BUTTON 1: CYBER NEON PULSE (Conic Laser Orbit + Glitch Sheen)
   ========================================================================== */
.btn-cyber {
  padding: 3px; /* border thickness */
  border-radius: 14px;
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 25px rgba(0, 242, 254, 0.15);
  transition: transform 0.2s var(--ease-elastic), box-shadow 0.3s ease;
}

/* 360 Conic Rotating Laser Beam */
.cyber-border-beam {
  position: absolute;
  inset: -100%;
  background: conic-gradient(
    from 0deg,
    transparent 0deg,
    transparent 280deg,
    var(--accent-cyan) 320deg,
    var(--accent-magenta) 360deg
  );
  animation: rotateLaser 3s linear infinite;
  z-index: 1;
}

@keyframes rotateLaser {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.cyber-content {
  position: relative;
  z-index: 2;
  background: #0b0f19;
  padding: 1.1rem 2.2rem;
  border-radius: 11px;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  color: #ffffff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  transition: background 0.3s ease;
}

.cyber-icon svg {
  width: 20px;
  height: 20px;
  stroke: var(--accent-cyan);
  transition: transform 0.3s var(--ease-elastic);
}

.cyber-arrow {
  color: var(--accent-magenta);
  font-size: 1.2rem;
  transition: transform 0.3s var(--ease-elastic);
}

/* Scanning Horizontal Glitch Line */
.cyber-scanline {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan), #ffffff, transparent);
  opacity: 0;
  z-index: 3;
  pointer-events: none;
}

/* Tech Corner Brackets */
.corner-bracket {
  position: absolute;
  width: 8px;
  height: 8px;
  border-color: var(--accent-cyan);
  border-style: solid;
  pointer-events: none;
  z-index: 4;
  opacity: 0;
  transition: opacity 0.2s ease, transform 0.3s var(--ease-elastic);
}
.corner-bracket.top-left {
  top: 5px;
  left: 5px;
  border-width: 2px 0 0 2px;
  transform: translate(-3px, -3px);
}
.corner-bracket.bottom-right {
  bottom: 5px;
  right: 5px;
  border-width: 0 2px 2px 0;
  transform: translate(3px, 3px);
}

/* Hover State */
.btn-cyber:hover {
  transform: scale(1.04);
  box-shadow: 0 0 35px rgba(0, 242, 254, 0.4), 0 0 50px rgba(254, 9, 121, 0.25);
}
.btn-cyber:hover .cyber-content {
  background: #111728;
}
.btn-cyber:hover .cyber-icon svg {
  transform: scale(1.25) rotate(-10deg);
  stroke: #ffffff;
  filter: drop-shadow(0 0 8px var(--accent-cyan));
}
.btn-cyber:hover .cyber-arrow {
  transform: translateX(5px);
  color: #ffffff;
}
.btn-cyber:hover .cyber-scanline {
  opacity: 1;
  animation: scanGlitch 1.2s infinite ease-in-out;
}
.btn-cyber:hover .corner-bracket {
  opacity: 1;
  transform: translate(0, 0);
}
.btn-cyber:hover .cyber-text {
  animation: cyberGlitchText 0.4s infinite;
}

@keyframes scanGlitch {
  0% { top: 0%; opacity: 0; }
  30% { opacity: 1; }
  80% { opacity: 1; }
  100% { top: 100%; opacity: 0; }
}

@keyframes cyberGlitchText {
  0% { transform: translate(0); text-shadow: none; }
  25% { transform: translate(-1.5px, 0.5px); text-shadow: -2px 0 var(--accent-cyan), 2px 0 var(--accent-magenta); }
  50% { transform: translate(1px, -0.5px); text-shadow: 2px 0 var(--accent-cyan), -2px 0 var(--accent-magenta); }
  75% { transform: translate(-0.5px, 0.5px); text-shadow: -1px 0 var(--accent-cyan), 1px 0 var(--accent-magenta); }
  100% { transform: translate(0); text-shadow: none; }
}

/* Active Click Press */
.btn-cyber:active {
  transform: scale(0.96);
}

/* ==========================================================================
   BUTTON 2: LIQUID MERCURY (Magnetic 3D Tilt + Fluid Wave Surge)
   ========================================================================== */
.btn-mercury {
  position: relative;
  padding: 1.15rem 2.5rem;
  border-radius: 999px;
  background: #0f1322;
  border: 1px solid rgba(138, 43, 226, 0.4);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), inset 0 1px 1px rgba(255, 255, 255, 0.2);
  overflow: hidden;
  transform-style: preserve-3d;
  perspective: 600px;
  transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.15s ease-out;
  cursor: pointer;
}

/* Liquid Wave Wrapper */
.liquid-wave-wrap {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: hidden;
  border-radius: 999px;
  pointer-events: none;
}

.liquid-wave-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #6366f1 0%, #8a2be2 60%, #c084fc 100%);
  transform: translateY(105%);
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.liquid-wave-svg {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 250%;
  height: 50px;
  fill: #8a2be2;
  transform: translateY(105%);
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  animation: waveMotion 4s linear infinite;
}

@keyframes waveMotion {
  0% { transform: translateX(0) translateY(105%); }
  50% { transform: translateX(-50%) translateY(105%); }
  100% { transform: translateX(0) translateY(105%); }
}

/* Specular Glare Follower (controlled by JS coords) */
.mercury-glare {
  position: absolute;
  width: 140px;
  height: 140px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.5) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: opacity 0.25s ease;
  z-index: 3;
  mix-blend-mode: overlay;
}

/* Mercury Content */
.mercury-content {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: #ffffff;
  font-family: var(--font-main);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.05em;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.6);
  pointer-events: none;
}

.mercury-drop-icon svg {
  width: 18px;
  height: 18px;
  fill: #c084fc;
  transition: transform 0.4s var(--ease-elastic), fill 0.3s ease;
}

.mercury-badge {
  font-size: 0.65rem;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(4px);
  letter-spacing: 0.1em;
  font-weight: 800;
}

/* Hover State */
.btn-mercury:hover {
  border-color: rgba(192, 132, 252, 0.7);
  box-shadow: 0 15px 35px rgba(138, 43, 226, 0.4), inset 0 1px 2px rgba(255, 255, 255, 0.5);
}
.btn-mercury:hover .liquid-wave-bg {
  transform: translateY(0%);
}
.btn-mercury:hover .liquid-wave-svg {
  transform: translateY(-80%);
}
.btn-mercury:hover .mercury-glare {
  opacity: 1;
}
.btn-mercury:hover .mercury-drop-icon svg {
  transform: scale(1.3) rotate(-15deg);
  fill: #ffffff;
}

/* Active Squish Jelly Animation */
.btn-mercury:active {
  animation: jellySquish 0.45s ease;
}

@keyframes jellySquish {
  0% { transform: scale(1, 1); }
  25% { transform: scale(1.15, 0.85); }
  50% { transform: scale(0.9, 1.1); }
  75% { transform: scale(1.05, 0.95); }
  100% { transform: scale(1, 1); }
}

/* ==========================================================================
   BUTTON 3: HYPERDRIVE WARP (Retro Synthwave + Depth Extrusion)
   ========================================================================== */
.btn-warp {
  position: relative;
  display: inline-block;
  padding: 0;
  border-radius: 12px;
  transition: transform 0.15s ease;
}

/* 3D Depth Shadow under switch */
.warp-depth-shadow {
  position: absolute;
  inset: 0;
  border-radius: 12px;
  background: #3b0764;
  transform: translateY(8px);
  box-shadow: 0 15px 30px rgba(255, 107, 53, 0.35);
  transition: all 0.15s ease;
}

.warp-face {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1.15rem 2.2rem;
  border-radius: 12px;
  background: linear-gradient(135deg, #ff6b35 0%, #d946ef 50%, #4f46e5 100%);
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: #ffffff;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  transform: translateY(0);
  transition: all 0.15s cubic-bezier(0.2, 0.8, 0.2, 1);
  overflow: hidden;
  box-shadow: inset 0 2px 2px rgba(255, 255, 255, 0.5), inset 0 -3px 6px rgba(0, 0, 0, 0.3);
}

.warp-grid-bg {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.15) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.15) 1px, transparent 1px);
  background-size: 12px 12px;
  opacity: 0.3;
  pointer-events: none;
}

.warp-icon svg {
  width: 20px;
  height: 20px;
  transition: transform 0.3s var(--ease-elastic);
}

.warp-speedometer {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  background: #000000;
  color: #ffbe0b;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  border: 1px solid #ffbe0b;
  font-weight: 700;
  letter-spacing: 0.05em;
}

/* Star Trails */
.warp-stars-container {
  position: absolute;
  inset: -15px -20px;
  pointer-events: none;
  overflow: visible;
  z-index: 0;
}
.star-trail {
  position: absolute;
  height: 2px;
  background: linear-gradient(90deg, transparent, #ffffff, var(--accent-orange), transparent);
  border-radius: 999px;
  opacity: 0;
  transform: scaleX(0);
  transition: transform 0.4s ease-out, opacity 0.3s ease;
}
.st-1 { top: 15%; left: 0%; width: 45px; }
.st-2 { top: 45%; right: 0%; width: 55px; }
.st-3 { bottom: 20%; left: 10%; width: 60px; }
.st-4 { top: 75%; right: 15%; width: 40px; }
.st-5 { top: 5%; right: 25%; width: 50px; }

/* Hover State */
.btn-warp:hover .warp-face {
  transform: translateY(-3px);
  background: linear-gradient(135deg, #ff824d 0%, #e879f9 50%, #6366f1 100%);
  box-shadow: 0 0 25px rgba(255, 107, 53, 0.6), inset 0 2px 3px rgba(255, 255, 255, 0.7);
}
.btn-warp:hover .warp-depth-shadow {
  transform: translateY(11px);
  box-shadow: 0 20px 40px rgba(255, 107, 53, 0.5);
}
.btn-warp:hover .warp-icon svg {
  transform: scale(1.3) rotate(45deg);
}
.btn-warp:hover .star-trail {
  opacity: 1;
  transform: scaleX(1.4) translateX(15px);
  animation: starPulse 0.6s infinite alternate;
}

@keyframes starPulse {
  0% { transform: scaleX(1) translateX(0); opacity: 0.4; }
  100% { transform: scaleX(1.8) translateX(20px); opacity: 1; }
}

/* Active Tactile Press */
.btn-warp:active .warp-face {
  transform: translateY(6px);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.5);
}
.btn-warp:active .warp-depth-shadow {
  transform: translateY(2px);
  box-shadow: 0 4px 10px rgba(255, 107, 53, 0.2);
}

/* ==========================================================================
   BUTTON 4: QUANTUM PRISM (Frosted Glass + Floating Plasma Core Orb)
   ========================================================================== */
.btn-prism {
  position: relative;
  padding: 1.15rem 2.4rem;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4), inset 0 0 0 1px rgba(255, 255, 255, 0.08);
  overflow: hidden;
  transition: all 0.35s var(--ease-smooth);
}

/* Iridescent Rainbow Border Gradient Shimmer */
.prism-rainbow-border {
  position: absolute;
  inset: 0;
  border-radius: 16px;
  padding: 1.5px;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.5) 0%,
    rgba(0, 242, 254, 0.6) 25%,
    rgba(16, 185, 129, 0.6) 50%,
    rgba(254, 9, 121, 0.6) 75%,
    rgba(255, 255, 255, 0.5) 100%
  );
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0.6;
  transition: opacity 0.3s ease;
}

/* Floating Internal Plasma Core Orb */
.prism-core-orb {
  position: absolute;
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.5) 0%, rgba(0, 242, 254, 0.3) 50%, transparent 75%);
  filter: blur(12px);
  pointer-events: none;
  transform: translate(-50%, -50%);
  opacity: 0.4;
  transition: opacity 0.3s ease;
  z-index: 1;
}

.prism-glass-plate {
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.12) 0%, transparent 60%);
  pointer-events: none;
  z-index: 2;
}

.prism-content {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  color: #f8fafc;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.05em;
  pointer-events: none;
}

.prism-gem-icon svg {
  width: 20px;
  height: 20px;
  stroke: #10b981;
  transition: transform 0.4s var(--ease-elastic), stroke 0.3s ease;
}

.prism-status {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: #10b981;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  letter-spacing: 0.08em;
  font-weight: 600;
}
.prism-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 6px #10b981;
}

/* Hover State */
.btn-prism:hover {
  background: rgba(255, 255, 255, 0.09);
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 20px 45px rgba(16, 185, 129, 0.25), 0 0 0 1px rgba(255, 255, 255, 0.25);
}
.btn-prism:hover .prism-rainbow-border {
  opacity: 1;
  animation: borderRotate 4s linear infinite;
}
.btn-prism:hover .prism-core-orb {
  opacity: 0.85;
  width: 120px;
  height: 120px;
}
.btn-prism:hover .prism-gem-icon svg {
  transform: rotate(30deg) scale(1.2);
  stroke: #ffffff;
  filter: drop-shadow(0 0 6px #10b981);
}

@keyframes borderRotate {
  0% { filter: hue-rotate(0deg); }
  100% { filter: hue-rotate(360deg); }
}

/* Active Click Shockwave */
.btn-prism:active {
  transform: translateY(0) scale(0.97);
}

/* ==========================================================================
   Click Sparks & Shockwave Particle VFX System
   ========================================================================== */
#vfx-container {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  overflow: hidden;
}

.particle-spark {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  transform: translate(-50%, -50%);
  animation: sparkFade 0.65s cubic-bezier(0.1, 0.9, 0.2, 1) forwards;
}

@keyframes sparkFade {
  0% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
  }
  100% {
    transform: translate(calc(-50% + var(--dx)), calc(-50% + var(--dy))) scale(0);
    opacity: 0;
  }
}

.shockwave-ring {
  position: absolute;
  border-radius: 50%;
  border: 2px solid var(--primary-accent);
  transform: translate(-50%, -50%) scale(0.2);
  opacity: 1;
  pointer-events: none;
  animation: ringExpand 0.75s ease-out forwards;
}

@keyframes ringExpand {
  0% {
    transform: translate(-50%, -50%) scale(0.2);
    opacity: 0.9;
  }
  100% {
    transform: translate(-50%, -50%) scale(3.5);
    opacity: 0;
  }
}

/* ==========================================================================
   Action Deck & Telemetry Bar
   ========================================================================== */
.action-deck {
  background: rgba(18, 22, 34, 0.8);
  border: 1px solid var(--border-color);
  border-radius: 18px;
  padding: 1.25rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  backdrop-filter: blur(16px);
  margin-top: 1rem;
}

.deck-btn {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.03) 100%);
  border: 1px solid var(--border-highlight);
  color: var(--text-primary);
  font-family: var(--font-main);
  font-weight: 600;
  font-size: 0.92rem;
  padding: 0.75rem 1.4rem;
  border-radius: 12px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  transition: all 0.25s ease;
}
.deck-btn:hover {
  background: var(--primary-accent);
  color: #07090e;
  border-color: var(--primary-accent);
  box-shadow: 0 0 20px var(--primary-accent-glow);
  transform: translateY(-2px);
}
.deck-btn:active {
  transform: translateY(0);
}

.deck-stats {
  display: flex;
  align-items: center;
  gap: 1.8rem;
}
.stat-item {
  display: flex;
  flex-direction: column;
  text-align: left;
}
.stat-value {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
}
.stat-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.stat-divider {
  width: 1px;
  height: 32px;
  background: var(--border-color);
}

/* ==========================================================================
   Mechanics Technical Section
   ========================================================================== */
.mechanics-section {
  padding: 6rem 0;
  border-top: 1px solid var(--border-color);
  background: rgba(11, 14, 23, 0.4);
  position: relative;
  z-index: 10;
}

.section-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 4rem auto;
}
.section-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--primary-accent);
  font-weight: 700;
  letter-spacing: 0.15em;
  display: block;
  margin-bottom: 0.6rem;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.9rem;
}
.section-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

.mechanics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.75rem;
}

.mechanic-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.8rem;
  transition: all 0.3s ease;
}
.mechanic-card:hover {
  border-color: rgba(255, 255, 255, 0.18);
  transform: translateY(-3px);
}

.mech-header {
  margin-bottom: 1.1rem;
}
.mech-badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  display: inline-block;
  margin-bottom: 0.7rem;
}
.cyan-badge { background: rgba(0, 242, 254, 0.15); color: #00f2fe; }
.violet-badge { background: rgba(138, 43, 226, 0.15); color: #c084fc; }
.orange-badge { background: rgba(255, 107, 53, 0.15); color: #ff6b35; }
.emerald-badge { background: rgba(16, 185, 129, 0.15); color: #10b981; }

.mech-header h3 {
  font-family: var(--font-display);
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--text-primary);
}

.mech-body {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}
.mech-body code {
  font-family: var(--font-mono);
  background: rgba(255, 255, 255, 0.06);
  padding: 0.15rem 0.35rem;
  border-radius: 4px;
  color: #e2e8f0;
  font-size: 0.82rem;
}

.mech-tech-specs {
  border-top: 1px solid var(--border-color);
  padding-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  font-size: 0.78rem;
}
.spec-row {
  display: flex;
  justify-content: space-between;
  color: var(--text-muted);
}
.spec-row code {
  font-family: var(--font-mono);
  color: var(--text-primary);
}

/* ==========================================================================
   Telemetry Section
   ========================================================================== */
.telemetry-section {
  padding: 5rem 0 7rem 0;
  position: relative;
  z-index: 10;
}

.telemetry-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 2.5rem;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
  align-items: center;
}

.telemetry-info h3 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  margin: 0.8rem 0;
}
.telemetry-info p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}
.telemetry-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--primary-accent);
  background: rgba(0, 242, 254, 0.1);
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.telemetry-code-pill {
  display: inline-block;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-color);
  padding: 0.6rem 1.2rem;
  border-radius: 10px;
}
.telemetry-code-pill code {
  font-family: var(--font-mono);
  color: var(--accent-emerald);
  font-size: 0.88rem;
}

.telemetry-panel {
  background: #080a10;
  border: 1px solid var(--border-color);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.6);
}
.panel-header {
  background: #0f131f;
  padding: 0.7rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  border-bottom: 1px solid var(--border-color);
}
.panel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.panel-dot.red { background: #ef4444; }
.panel-dot.yellow { background: #f59e0b; }
.panel-dot.green { background: #10b981; }
.panel-title {
  margin-left: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
}

.panel-terminal {
  padding: 1.2rem;
  height: 190px;
  overflow-y: auto;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}
.log-line {
  color: #cbd5e1;
}
.log-time {
  color: var(--text-muted);
}
.log-ok {
  color: #10b981;
  font-weight: 600;
}
.log-info {
  color: #00f2fe;
  font-weight: 600;
}
.log-trigger {
  color: #f43f5e;
  font-weight: 600;
}
.log-waiting {
  color: var(--text-muted);
  font-style: italic;
}

/* ==========================================================================
   Toast Notification Widget
   ========================================================================== */
.toast-card {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: rgba(18, 24, 38, 0.95);
  border: 1px solid var(--border-highlight);
  border-radius: 14px;
  padding: 1rem 1.4rem;
  display: flex;
  align-items: center;
  gap: 0.9rem;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5), 0 0 20px var(--primary-accent-glow);
  backdrop-filter: blur(16px);
  z-index: 1000;
  transform: translateY(120px) scale(0.9);
  opacity: 0;
  pointer-events: none;
  transition: all 0.35s var(--ease-elastic);
}
.toast-card.show {
  transform: translateY(0) scale(1);
  opacity: 1;
  pointer-events: auto;
}
.toast-icon {
  font-size: 1.4rem;
}
.toast-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--text-primary);
}
.toast-message {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 2.5rem 0;
  position: relative;
  z-index: 10;
  background: rgba(7, 9, 14, 0.9);
}
.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--text-primary);
  margin-right: 1.2rem;
}
.back-to-top {
  color: var(--primary-accent);
  text-decoration: none;
  font-weight: 600;
  transition: opacity 0.2s;
}
.back-to-top:hover {
  text-decoration: underline;
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */
@media (max-width: 992px) {
  .buttons-showcase-grid {
    grid-template-columns: 1fr;
  }
  .telemetry-box {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .action-deck {
    flex-direction: column;
    align-items: stretch;
  }
  .deck-stats {
    justify-content: space-around;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .hero-section {
    padding-top: 6.5rem;
  }
  .footer-container {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}