/* ==========================================================================
   DESIGNCODE CYBER GLASS DESIGN SYSTEM & THEME ENGINE
   Master Stylesheet for Mphathisi The Teq-master — Identity Hub
   Propagated Logo System, Suspended Floating Text & Public Launch Badge
   ========================================================================== */

/* Dark Mode Tokens (Default) */
:root, [data-theme="dark"] {
  --gk-hue-bg: 245;
  --gk-hue-cyan: 190;
  --gk-hue-violet: 265;
  --gk-hue-pink: 330;
  --gk-hue-orange: 24;

  /* Base & Surface Colors */
  --gk-bg-base: #0a081a;
  --gk-bg-elevated: #110d2c;
  --gk-surface-base: rgba(22, 17, 48, 0.35);
  --gk-surface-hover: rgba(45, 35, 95, 0.55);

  /* Accents */
  --gk-accent-primary: #06b6d4;
  --gk-accent-primary-subtle: rgba(6, 182, 212, 0.18);
  --gk-accent-secondary: #a78bfa;
  --gk-accent-secondary-subtle: rgba(167, 139, 250, 0.18);
  --gk-accent-pink: #ec4899;
  --gk-accent-orange: #f97316;
  --gk-accent-green: #10b981;

  /* Super Transparent Glassmorphism Tokens */
  --gk-glass-bg: rgba(15, 11, 35, 0.28);
  --gk-glass-border: rgba(255, 255, 255, 0.16);
  --gk-glass-highlight: rgba(255, 255, 255, 0.25);
  --gk-glass-blur: 14px;

  /* Typography Colors */
  --gk-text-primary: #f8fafc;
  --gk-text-secondary: #cbd5e1;
  --gk-text-muted: #94a3b8;

  /* Mesh Background Overlays */
  --mesh-gradient: radial-gradient(circle at 15% 15%, rgba(249, 115, 22, 0.25) 0%, rgba(236, 72, 153, 0.2) 25%, rgba(139, 92, 246, 0.15) 55%, transparent 75%);
  --bg-overlay-gradient: linear-gradient(180deg, rgba(10, 8, 26, 0.2) 0%, rgba(10, 8, 26, 0.55) 100%);
}

/* Light Mode Tokens */
[data-theme="light"] {
  --gk-hue-bg: 220;
  --gk-hue-cyan: 195;
  --gk-hue-violet: 260;

  /* Base & Surface Colors */
  --gk-bg-base: #f3f4f8;
  --gk-bg-elevated: #ffffff;
  --gk-surface-base: rgba(255, 255, 255, 0.45);
  --gk-surface-hover: rgba(255, 255, 255, 0.75);

  /* Accents */
  --gk-accent-primary: #0284c7;
  --gk-accent-primary-subtle: rgba(2, 132, 199, 0.15);
  --gk-accent-secondary: #7c3aed;
  --gk-accent-secondary-subtle: rgba(124, 58, 237, 0.15);
  --gk-accent-pink: #db2777;
  --gk-accent-orange: #ea580c;
  --gk-accent-green: #059669;

  /* Glassmorphism Tokens */
  --gk-glass-bg: rgba(255, 255, 255, 0.42);
  --gk-glass-border: rgba(255, 255, 255, 0.5);
  --gk-glass-highlight: rgba(255, 255, 255, 0.9);
  --gk-glass-blur: 14px;

  /* Typography Colors */
  --gk-text-primary: #0f172a;
  --gk-text-secondary: #334155;
  --gk-text-muted: #64748b;

  /* Mesh Background Overlays */
  --mesh-gradient: radial-gradient(circle at 15% 15%, rgba(249, 115, 22, 0.2) 0%, rgba(236, 72, 153, 0.15) 25%, rgba(139, 92, 246, 0.1) 55%, transparent 75%);
  --bg-overlay-gradient: linear-gradient(180deg, rgba(243, 244, 248, 0.3) 0%, rgba(243, 244, 248, 0.65) 100%);
}

/* System Radii & Fonts */
:root {
  --gk-font-display: 'Outfit', 'Plus Jakarta Sans', sans-serif;
  --gk-font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --gk-font-mono: 'JetBrains Mono', monospace;

  --gk-radius-sm: 10px;
  --gk-radius-md: 16px;
  --gk-radius-lg: 24px;
  --gk-radius-xl: 32px;
  --gk-radius-full: 9999px;

  --gk-transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --gk-transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --gk-transition-spring: 450ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--gk-font-sans);
  background-color: var(--gk-bg-base);
  color: var(--gk-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  transition: background-color var(--gk-transition-normal), color var(--gk-transition-normal);
}

/* Top Sunset Mesh Lighting Overlay */
.mesh-lighting-layer {
  position: fixed;
  inset: 0;
  background: var(--mesh-gradient);
  pointer-events: none;
  z-index: 0;
}

/* Custom Wallpaper Background Layer */
.custom-bg-layer {
  position: fixed;
  inset: 0;
  background-image: url('bg-wallpaper.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  filter: blur(4px) brightness(0.8);
  transform: scale(1.02);
  pointer-events: none;
  z-index: 0;
  transition: filter var(--gk-transition-normal);
}

[data-theme="light"] .custom-bg-layer {
  filter: blur(4px) brightness(1.05) opacity(0.55);
}

.custom-bg-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-overlay-gradient);
  pointer-events: none;
  z-index: 0;
}

/* Interactive Antigravity Canvas Layer */
#particleCanvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 1;
}

/* Layout Wrapper */
.site-wrapper {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 1.5rem;
}

/* Header & Navigation Bar */
.gk-header {
  position: sticky;
  top: 1rem;
  z-index: 100;
  margin-bottom: 3rem;
}

.gk-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.5rem;
  background: var(--gk-glass-bg);
  border: 1px solid var(--gk-glass-border);
  border-radius: var(--gk-radius-xl);
  backdrop-filter: blur(var(--gk-glass-blur));
  -webkit-backdrop-filter: blur(var(--gk-glass-blur));
  box-shadow: inset 0 1px 0 var(--gk-glass-highlight), 0 15px 35px rgba(0, 0, 0, 0.2);
  transition: all var(--gk-transition-normal);
}

/* Rounded Logo Propagated in Brand Header (No Sharp Corners) */
.gk-brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
  color: var(--gk-text-primary);
}

.gk-brand-logo-img {
  width: 40px;
  height: 40px;
  border-radius: 12px; /* Rounded, no sharp corners */
  object-fit: cover;
  box-shadow: 0 0 12px rgba(6, 182, 212, 0.4);
}

.gk-brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--gk-font-display);
  font-weight: 800;
  font-size: 1.18rem;
  letter-spacing: -0.02em;
  color: var(--gk-text-primary);
}

.brand-tag {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--gk-accent-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.gk-nav-center {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.gk-nav-link {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--gk-text-secondary);
  text-decoration: none;
  border-radius: var(--gk-radius-md);
  transition: all var(--gk-transition-fast);
}

.gk-nav-link:hover {
  color: var(--gk-text-primary);
  background: var(--gk-surface-hover);
}

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

/* Theme Toggle Switch */
.theme-toggle-btn {
  width: 42px;
  height: 42px;
  border-radius: var(--gk-radius-md);
  background: var(--gk-surface-base);
  border: 1px solid var(--gk-glass-border);
  color: var(--gk-text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--gk-transition-normal);
}

.theme-toggle-btn:hover {
  background: var(--gk-surface-hover);
  border-color: var(--gk-accent-primary);
  color: var(--gk-accent-primary);
  transform: rotate(15deg);
}

.theme-icon {
  width: 20px;
  height: 20px;
}

[data-theme="dark"] .sun-icon { display: block; }
[data-theme="dark"] .moon-icon { display: none; }
[data-theme="light"] .sun-icon { display: none; }
[data-theme="light"] .moon-icon { display: block; }

/* Glopkit DesignCode Buttons */
.gk-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.75rem 1.5rem;
  font-family: var(--gk-font-sans);
  font-size: 0.9rem;
  font-weight: 700;
  border-radius: var(--gk-radius-md);
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--gk-transition-spring);
}

.btn-icon {
  width: 18px;
  height: 18px;
}

.gk-btn-primary {
  background: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
  color: #ffffff;
  box-shadow: 0 10px 25px rgba(6, 182, 212, 0.35);
}

.gk-btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 15px 35px rgba(6, 182, 212, 0.5);
}

.gk-btn-glow {
  background: linear-gradient(135deg, #ec4899 0%, #8b5cf6 50%, #06b6d4 100%);
  color: #ffffff;
  border: none;
  box-shadow: 0 12px 30px rgba(236, 72, 153, 0.4);
}

.gk-btn-glow:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 18px 40px rgba(139, 92, 246, 0.6);
}

.gk-btn-outline {
  background: var(--gk-surface-base);
  color: var(--gk-text-primary);
  border-color: var(--gk-glass-border);
  backdrop-filter: blur(var(--gk-glass-blur));
}

.gk-btn-outline:hover {
  background: var(--gk-surface-hover);
  border-color: var(--gk-accent-primary);
  color: var(--gk-accent-primary);
  transform: translateY(-2px);
}

/* Badges */
.gk-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.95rem;
  font-family: var(--gk-font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: var(--gk-radius-full);
  border: 1px solid transparent;
  backdrop-filter: blur(10px);
}

.badge-icon {
  width: 14px;
  height: 14px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--gk-accent-primary);
  box-shadow: 0 0 10px var(--gk-accent-primary);
  animation: pulseGlow 2s infinite;
}

@keyframes pulseGlow {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(1.3); }
}

.gk-badge-cyan {
  background: rgba(6, 182, 212, 0.18);
  color: var(--gk-accent-primary);
  border-color: rgba(6, 182, 212, 0.35);
}

.gk-badge-violet {
  background: rgba(167, 139, 250, 0.18);
  color: var(--gk-accent-secondary);
  border-color: rgba(167, 139, 250, 0.35);
}

.gk-badge-green {
  background: rgba(16, 185, 129, 0.18);
  color: var(--gk-accent-green);
  border-color: rgba(16, 185, 129, 0.35);
}

/* Suspended Hero Floating Text (No Card, No Boundaries) */
.suspended-hero-text {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--gk-font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--gk-accent-primary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  text-shadow: 0 0 15px rgba(6, 182, 212, 0.6);
}

/* DesignCode Hero Split Grid */
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 3.5rem;
  align-items: center;
  padding: 2rem 0 5rem;
}

.hero-left {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero-title {
  font-family: var(--gk-font-display);
  font-size: clamp(2.4rem, 4.5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.035em;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #ffffff 0%, #f1f5f9 40%, var(--gk-accent-pink) 70%, var(--gk-accent-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  drop-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

[data-theme="light"] .hero-title {
  background: linear-gradient(135deg, #0f172a 0%, #334155 40%, var(--gk-accent-pink) 70%, var(--gk-accent-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: clamp(1.05rem, 1.8vw, 1.2rem);
  color: var(--gk-text-secondary);
  line-height: 1.7;
  margin-bottom: 2.25rem;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Hero Right: 3D Perspective Floating Card Stack */
.hero-3d-showcase {
  perspective: 1200px;
  position: relative;
}

.card-3d-tilt {
  position: relative;
  background: rgba(20, 15, 45, 0.32);
  border: 1px solid var(--gk-glass-border);
  border-radius: var(--gk-radius-xl);
  padding: 1.75rem;
  backdrop-filter: blur(var(--gk-glass-blur));
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.3), inset 0 1px 0 var(--gk-glass-highlight);
  transform: rotateY(-14deg) rotateX(8deg) rotateZ(1deg);
  transition: transform var(--gk-transition-spring), box-shadow var(--gk-transition-spring);
  transform-style: preserve-3d;
}

[data-theme="light"] .card-3d-tilt {
  background: rgba(255, 255, 255, 0.45);
}

.card-3d-tilt:hover {
  transform: rotateY(-4deg) rotateX(2deg) translateY(-8px);
  box-shadow: 0 40px 80px rgba(139, 92, 246, 0.35);
}

.showcase-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.dots-row {
  display: flex;
  gap: 6px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.dot-red { background-color: #ef4444; }
.dot-yellow { background-color: #f59e0b; }
.dot-green { background-color: #10b981; }

.showcase-title {
  font-family: var(--gk-font-mono);
  font-size: 0.8rem;
  color: var(--gk-accent-primary);
  font-weight: 600;
}

.showcase-preview-box {
  background: rgba(15, 11, 35, 0.25);
  border: 1px solid var(--gk-glass-border);
  border-radius: var(--gk-radius-lg);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.preview-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1rem;
  background: var(--gk-surface-base);
  border-radius: var(--gk-radius-md);
  border: 1px solid var(--gk-glass-border);
}

.preview-thumb-img {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  object-fit: cover;
  border: 1px solid var(--gk-glass-border);
}

.preview-item-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--gk-accent-primary-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gk-accent-primary);
}

.preview-item-text h4 {
  font-size: 0.9rem;
  font-weight: 700;
}

.preview-item-text p {
  font-size: 0.75rem;
  color: var(--gk-text-muted);
}

/* Floating Glass Chip Overlay with Logo */
.floating-chip {
  position: absolute;
  bottom: -20px;
  left: -20px;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1.25rem;
  background: rgba(15, 11, 35, 0.45);
  border: 1px solid rgba(236, 72, 153, 0.5);
  border-radius: var(--gk-radius-lg);
  backdrop-filter: blur(16px);
  box-shadow: 0 15px 35px rgba(236, 72, 153, 0.3);
  animation: floatChip 4s ease-in-out infinite alternate;
}

.chip-logo-img {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  object-fit: cover;
}

[data-theme="light"] .floating-chip {
  background: rgba(255, 255, 255, 0.65);
}

@keyframes floatChip {
  0% { transform: translateY(0px); }
  100% { transform: translateY(-12px); }
}

.chip-text {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--gk-text-primary);
}

/* Platform Tech Stack Bar */
.platform-bar-section {
  margin-bottom: 5rem;
  text-align: center;
}

.platform-label {
  font-family: var(--gk-font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--gk-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
}

.platform-icons-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.tech-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 1.2rem;
  background: var(--gk-glass-bg);
  border: 1px solid var(--gk-glass-border);
  border-radius: var(--gk-radius-full);
  font-family: var(--gk-font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--gk-text-secondary);
  backdrop-filter: blur(var(--gk-glass-blur));
  transition: all var(--gk-transition-fast);
}

.tech-chip:hover {
  border-color: var(--gk-accent-primary);
  color: var(--gk-accent-primary);
  transform: translateY(-2px);
  background: var(--gk-surface-hover);
}

.tech-chip-svg {
  width: 18px;
  height: 18px;
}

/* Section Containers */
.section-container {
  margin-bottom: 5.5rem;
}

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 2.25rem;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.section-tag {
  font-family: var(--gk-font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--gk-accent-primary);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.35rem;
}

.section-title {
  font-family: var(--gk-font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.3rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--gk-text-primary);
}

.section-subtitle {
  font-size: 0.95rem;
  color: var(--gk-text-muted);
  max-width: 450px;
}

/* Split Featured Cards Layout — Image Backgrounds for Yallo & SafeNet */
.featured-split-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(540px, 1fr));
  gap: 2rem;
  margin-bottom: 3.5rem;
}

.featured-split-card {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  background: var(--gk-glass-bg);
  border: 1px solid var(--gk-glass-border);
  border-radius: var(--gk-radius-xl);
  overflow: hidden;
  backdrop-filter: blur(var(--gk-glass-blur));
  box-shadow: inset 0 1px 0 var(--gk-glass-highlight), 0 20px 40px rgba(0, 0, 0, 0.2);
  transition: transform var(--gk-transition-spring), border-color var(--gk-transition-fast);
}

.impact-highlight-card {
  border-color: rgba(16, 185, 129, 0.4);
}

.featured-split-card:hover {
  transform: translateY(-5px);
  border-color: rgba(16, 185, 129, 0.6);
}

.split-card-left {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.split-card-left h3 {
  font-family: var(--gk-font-display);
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.split-card-left p {
  font-size: 0.88rem;
  color: var(--gk-text-secondary);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 1.5rem;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.82rem;
  color: var(--gk-text-muted);
}

.feature-check {
  width: 16px;
  height: 16px;
  color: var(--gk-accent-green);
  flex-shrink: 0;
}

.split-card-right {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
}

.split-card-image-bg {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  position: relative;
}

.image-overlay-card {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 8, 26, 0.35) 0%, rgba(10, 8, 26, 0.85) 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  backdrop-filter: blur(2px);
}

.card-logo-badge {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  object-fit: cover;
  margin-bottom: 0.75rem;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
}

.split-right-domain {
  font-family: var(--gk-font-mono);
  font-size: 0.8rem;
  color: #ffffff;
  font-weight: 700;
  margin-bottom: 0.75rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.8);
}

/* Super Transparent Multi-Color Cards Grid */
.color-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.color-card {
  display: flex;
  flex-direction: column;
  padding: 1.85rem;
  border-radius: var(--gk-radius-xl);
  backdrop-filter: blur(var(--gk-glass-blur));
  text-decoration: none;
  color: var(--gk-text-primary);
  transition: all var(--gk-transition-spring);
  position: relative;
  overflow: hidden;
  box-shadow: inset 0 1px 0 var(--gk-glass-highlight);
}

.color-card:hover {
  transform: translateY(-6px) scale(1.02);
}

.card-cyan {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.16) 0%, rgba(15, 11, 35, 0.28) 100%);
  border: 1px solid rgba(6, 182, 212, 0.35);
}
.card-cyan:hover { box-shadow: 0 20px 40px rgba(6, 182, 212, 0.3); }

.card-violet {
  background: linear-gradient(135deg, rgba(167, 139, 250, 0.16) 0%, rgba(15, 11, 35, 0.28) 100%);
  border: 1px solid rgba(167, 139, 250, 0.35);
}
.card-violet:hover { box-shadow: 0 20px 40px rgba(167, 139, 250, 0.3); }

.card-pink {
  background: linear-gradient(135deg, rgba(236, 72, 153, 0.16) 0%, rgba(15, 11, 35, 0.28) 100%);
  border: 1px solid rgba(236, 72, 153, 0.35);
}
.card-pink:hover { box-shadow: 0 20px 40px rgba(236, 72, 153, 0.3); }

.card-orange {
  background: linear-gradient(135deg, rgba(249, 115, 22, 0.16) 0%, rgba(15, 11, 35, 0.28) 100%);
  border: 1px solid rgba(249, 115, 22, 0.35);
}
.card-orange:hover { box-shadow: 0 20px 40px rgba(249, 115, 22, 0.3); }

.color-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.color-card-title {
  font-family: var(--gk-font-display);
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.color-card-desc {
  font-size: 0.875rem;
  color: var(--gk-text-secondary);
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
}

.tag {
  font-family: var(--gk-font-mono);
  font-size: 0.7rem;
  padding: 0.25rem 0.6rem;
  background: var(--gk-surface-base);
  border: 1px solid var(--gk-glass-border);
  border-radius: var(--gk-radius-sm);
  color: var(--gk-text-muted);
}

.color-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  font-weight: 700;
  border-top: 1px solid var(--gk-glass-border);
  padding-top: 1rem;
}

.link-arrow {
  width: 18px;
  height: 18px;
  transition: transform var(--gk-transition-fast);
}

.color-card:hover .link-arrow {
  transform: translateX(5px);
}

/* Category Filter Tabs */
.category-tabs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
}

.tab-btn {
  padding: 0.6rem 1.2rem;
  font-family: var(--gk-font-sans);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--gk-text-secondary);
  background: var(--gk-glass-bg);
  border: 1px solid var(--gk-glass-border);
  border-radius: var(--gk-radius-md);
  cursor: pointer;
  backdrop-filter: blur(var(--gk-glass-blur));
  transition: all var(--gk-transition-fast);
  white-space: nowrap;
}

.tab-btn:hover, .tab-btn.active {
  color: var(--gk-text-primary);
  background: var(--gk-surface-hover);
  border-color: var(--gk-accent-primary);
}

/* Identity Card with Propagated Logo Avatar */
.identity-card {
  padding: 3rem;
  background: var(--gk-glass-bg);
  border: 1px solid var(--gk-glass-border);
  border-radius: var(--gk-radius-xl);
  backdrop-filter: blur(var(--gk-glass-blur));
  box-shadow: inset 0 1px 0 var(--gk-glass-highlight);
}

.identity-header {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.identity-avatar-img {
  width: 75px;
  height: 75px;
  border-radius: 50%; /* Rounded, no sharp corners */
  object-fit: cover;
  box-shadow: 0 0 25px rgba(236, 72, 153, 0.4);
}

.identity-name {
  font-family: var(--gk-font-display);
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: -0.025em;
}

.identity-alias {
  font-size: 1rem;
  color: var(--gk-text-secondary);
}

.identity-alias strong {
  color: var(--gk-accent-primary);
}

.identity-body {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.body-text {
  font-size: 1.05rem;
  color: var(--gk-text-secondary);
  line-height: 1.75;
}

.keyword-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.25rem;
}

.kw-tag {
  font-family: var(--gk-font-mono);
  font-size: 0.78rem;
  padding: 0.4rem 0.85rem;
  background: var(--gk-accent-secondary-subtle);
  border: 1px solid rgba(167, 139, 250, 0.35);
  color: var(--gk-accent-secondary);
  border-radius: var(--gk-radius-full);
}

/* Contact Section & Card */
.contact-card {
  padding: 3rem;
  background: var(--gk-glass-bg);
  border: 1px solid var(--gk-glass-border);
  border-radius: var(--gk-radius-xl);
  backdrop-filter: blur(var(--gk-glass-blur));
  box-shadow: inset 0 1px 0 var(--gk-glass-highlight), 0 20px 40px rgba(0, 0, 0, 0.15);
}

.contact-methods {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.contact-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.35rem;
  background: var(--gk-glass-bg);
  border: 1px solid var(--gk-glass-border);
  border-radius: var(--gk-radius-lg);
  gap: 1rem;
}

.contact-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--gk-radius-md);
  background: var(--gk-surface-base);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-info {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.contact-label {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--gk-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.contact-value {
  font-family: var(--gk-font-mono);
  font-size: 0.9rem;
  color: var(--gk-accent-primary);
  text-decoration: none;
  font-weight: 700;
  word-break: break-all;
}

.contact-value:hover {
  text-decoration: underline;
}

.copy-btn, .visit-btn {
  padding: 0.45rem 0.85rem;
  font-family: var(--gk-font-sans);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--gk-text-primary);
  background: var(--gk-surface-base);
  border: 1px solid var(--gk-glass-border);
  border-radius: var(--gk-radius-sm);
  cursor: pointer;
  transition: all var(--gk-transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.copy-btn:hover, .visit-btn:hover {
  background: var(--gk-surface-hover);
  border-color: var(--gk-accent-primary);
  color: var(--gk-accent-primary);
}

/* Master Footer */
.gk-footer {
  margin-top: 6rem;
  padding-top: 4rem;
  border-top: 1px solid var(--gk-glass-border);
}

.footer-container {
  display: grid;
  grid-template-columns: 1.5fr 3fr;
  gap: 3.5rem;
  margin-bottom: 3.5rem;
}

.brand-title-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.footer-logo-img {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  object-fit: cover;
}

.footer-brand .brand-title {
  font-family: var(--gk-font-display);
  font-weight: 900;
  font-size: 1.4rem;
  color: var(--gk-text-primary);
}

.footer-desc {
  font-size: 0.88rem;
  color: var(--gk-text-muted);
  line-height: 1.65;
  margin-bottom: 1.25rem;
}

/* Public Launch Record Badge Styling */
.footer-launch-badge {
  margin-top: 1rem;
}

.launch-record-img {
  border-radius: 12px;
  transition: transform var(--gk-transition-fast);
  display: block;
}

.launch-record-img:hover {
  transform: scale(1.03);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.link-column h4 {
  font-family: var(--gk-font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--gk-accent-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
}

.link-column a {
  display: block;
  font-size: 0.84rem;
  color: var(--gk-text-secondary);
  text-decoration: none;
  margin-bottom: 0.65rem;
  transition: color var(--gk-transition-fast);
}

.link-column a:hover {
  color: var(--gk-text-primary);
}

.footer-bottom {
  text-align: center;
  padding: 1.75rem 0;
  border-top: 1px solid var(--gk-glass-border);
  font-size: 0.825rem;
  color: var(--gk-text-muted);
}

/* Media Queries */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .hero-3d-showcase {
    max-width: 540px;
    margin: 0 auto;
  }

  .featured-split-card {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .footer-container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 640px) {
  .gk-nav-center {
    display: none;
  }

  .identity-card, .contact-card {
    padding: 1.75rem;
  }
}