/* ==========================================================================
   CB DEV STUDIO - Official Website Stylesheet
   80% Real Professional Company Website + 20% Gaming / 3D Visual Style
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Custom Properties / Dual Theme System
   -------------------------------------------------------------------------- */
:root {
  /* Default: Dark Mode (Cinematic & Gaming-Inspired) */
  --bg-main: #05070d;
  --bg-surface: #0b1020;
  --bg-surface-elevated: #111827;
  --bg-card: rgba(11, 16, 32, 0.78);
  --bg-card-hover: rgba(17, 24, 39, 0.92);
  --bg-glass: rgba(11, 16, 32, 0.75);

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-card: rgba(0, 217, 255, 0.16);
  --border-card-hover: rgba(0, 217, 255, 0.45);
  --border-glow: rgba(0, 217, 255, 0.35);

  --accent-cyan: #00d9ff;
  --accent-cyan-glow: rgba(0, 217, 255, 0.25);
  --accent-indigo: #6366f1;
  --accent-indigo-glow: rgba(99, 102, 241, 0.25);
  --accent-gradient: linear-gradient(135deg, #00d9ff 0%, #6366f1 100%);
  --accent-gradient-text: linear-gradient(135deg, #f8fafc 30%, #00d9ff 75%, #6366f1 100%);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #05070d;

  --hud-tag-bg: rgba(0, 217, 255, 0.08);
  --hud-tag-border: rgba(0, 217, 255, 0.3);
  --hud-tag-text: #00d9ff;

  --badge-live-bg: rgba(16, 185, 129, 0.12);
  --badge-live-border: rgba(16, 185, 129, 0.4);
  --badge-live-text: #10b981;

  --shadow-card: 0 10px 30px -5px rgba(0, 0, 0, 0.5), 0 0 0 1px var(--border-card);
  --shadow-card-hover: 0 20px 40px -10px rgba(0, 217, 255, 0.18), 0 0 25px rgba(0, 217, 255, 0.15), 0 0 0 1px var(--border-card-hover);
  --shadow-glow: 0 0 24px var(--accent-cyan-glow);

  /* Shared Tokens */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', Consolas, Monaco, monospace;

  --container-max: 1200px;
  --container-narrow: 840px;
  --header-height: 74px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;

  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 400ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* Light Theme: Modern Creative Technology Studio */
[data-theme="light"] {
  --bg-main: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #f1f5f9;
  --bg-card: rgba(255, 255, 255, 0.88);
  --bg-card-hover: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.82);

  --border-subtle: rgba(148, 163, 184, 0.2);
  --border-card: rgba(2, 132, 199, 0.2);
  --border-card-hover: rgba(2, 132, 199, 0.5);
  --border-glow: rgba(2, 132, 199, 0.25);

  --accent-cyan: #0284c7; /* Vibrant Sky */
  --accent-cyan-glow: rgba(2, 132, 199, 0.18);
  --accent-indigo: #6366f1;
  --accent-indigo-glow: rgba(99, 102, 241, 0.18);
  --accent-gradient: linear-gradient(135deg, #0284c7 0%, #6366f1 100%);
  --accent-gradient-text: linear-gradient(135deg, #0f172a 40%, #0284c7 80%, #6366f1 100%);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-inverse: #f8fafc;

  --hud-tag-bg: rgba(2, 132, 199, 0.08);
  --hud-tag-border: rgba(2, 132, 199, 0.35);
  --hud-tag-text: #0284c7;

  --badge-live-bg: rgba(16, 185, 129, 0.1);
  --badge-live-border: rgba(16, 185, 129, 0.4);
  --badge-live-text: #059669;

  --shadow-card: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 0 0 1px var(--border-card);
  --shadow-card-hover: 0 20px 35px -10px rgba(2, 132, 199, 0.15), 0 0 0 1px var(--border-card-hover);
  --shadow-glow: 0 0 20px rgba(2, 132, 199, 0.15);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 24px);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  transition: background-color var(--transition-base), color var(--transition-base);
}

/* Three.js canvas layer is fixed behind content */
#studio3d-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 700;
}

p {
  color: var(--text-secondary);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

img, svg {
  display: block;
  max-width: 100%;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.container-narrow {
  max-width: var(--container-narrow);
}

/* --------------------------------------------------------------------------
   Floating Glass Header & Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--bg-glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 100;
  transition: background var(--transition-base), border-color var(--transition-base);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-icon {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--hud-tag-bg);
  border: 1px solid var(--hud-tag-border);
  box-shadow: 0 0 12px var(--accent-cyan-glow);
}

.brand-name {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--text-primary);
}

.brand-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  text-transform: uppercase;
}

/* Navigation Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 0;
}

.nav-link:hover {
  color: var(--accent-cyan);
}

.nav-link.active {
  color: var(--text-primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent-gradient);
  border-radius: 2px;
  box-shadow: 0 0 8px var(--accent-cyan-glow);
}

/* Navigation Dropdown */
.nav-item-dropdown {
  position: relative;
}

.nav-dropdown-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

.dropdown-chevron {
  font-size: 0.65rem;
  transition: transform var(--transition-fast);
  color: var(--accent-cyan);
  display: inline-block;
}

.nav-item-dropdown:hover .dropdown-chevron,
.nav-item-dropdown:focus-within .dropdown-chevron,
.nav-item-dropdown.open .dropdown-chevron {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 290px;
  background: rgba(11, 16, 32, 0.96);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 8px;
  list-style: none;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.65), 0 0 20px var(--accent-cyan-glow);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  z-index: 1000;
}

.nav-dropdown-menu::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 10px;
  height: 10px;
  background: rgba(11, 16, 32, 0.96);
  border-left: 1px solid var(--border-card);
  border-top: 1px solid var(--border-card);
}

[data-theme="light"] .nav-dropdown-menu {
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid var(--border-card);
  box-shadow: 0 16px 36px rgba(15, 23, 42, 0.12), 0 0 16px rgba(2, 132, 199, 0.12);
}

[data-theme="light"] .nav-dropdown-menu::before {
  background: rgba(255, 255, 255, 0.98);
  border-left: 1px solid var(--border-card);
  border-top: 1px solid var(--border-card);
}

.nav-item-dropdown:hover .nav-dropdown-menu,
.nav-item-dropdown:focus-within .nav-dropdown-menu,
.nav-item-dropdown.open .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.dropdown-item {
  display: flex;
  flex-direction: column;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.dropdown-item:hover,
.dropdown-item:focus {
  background: rgba(0, 217, 255, 0.08);
  outline: none;
}

[data-theme="light"] .dropdown-item:hover,
[data-theme="light"] .dropdown-item:focus {
  background: rgba(2, 132, 199, 0.08);
}

.dropdown-item-title {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 6px;
  letter-spacing: 0.02em;
}

.dropdown-item:hover .dropdown-item-title,
.dropdown-item:focus .dropdown-item-title {
  color: var(--accent-cyan);
}

.dropdown-item-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 3px;
  line-height: 1.35;
  font-family: var(--font-sans);
  text-transform: none;
  letter-spacing: normal;
}

.dropdown-divider {
  height: 1px;
  background: var(--border-subtle);
  margin: 6px 0;
}

/* Mobile Dropdown Submenu */
.mobile-nav-item-dropdown {
  border-bottom: 1px solid var(--border-subtle);
  padding: 4px 0 10px 0;
}

.mobile-dropdown-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mobile-dropdown-header .mobile-nav-link {
  border-bottom: none;
  padding: 10px 0;
  flex: 1;
}

.mobile-dropdown-toggle {
  background: rgba(0, 217, 255, 0.08);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--accent-cyan);
  padding: 8px 14px;
  cursor: pointer;
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.mobile-dropdown-toggle:hover {
  background: rgba(0, 217, 255, 0.16);
  border-color: var(--accent-cyan);
}

.mobile-submenu {
  list-style: none;
  padding: 6px 0 4px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mobile-submenu-link {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.mobile-submenu-link:hover,
.mobile-submenu-link.active {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  background: rgba(0, 217, 255, 0.08);
}

.mobile-submenu-link .sub-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 6px var(--accent-cyan);
  flex-shrink: 0;
}

/* Header Right Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Theme Toggle Button */
.theme-toggle-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: var(--radius-full);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-card);
}

.theme-toggle-btn:hover {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 12px var(--accent-cyan-glow);
}

.theme-icon {
  font-size: 0.9rem;
}

/* Header Contact Button */
.header-contact-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 18px;
  min-height: 40px;
  background: var(--accent-gradient);
  color: #ffffff !important;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  box-shadow: 0 2px 10px var(--accent-cyan-glow);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.header-contact-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px var(--accent-cyan-glow);
  color: #ffffff !important;
}

@media (max-width: 860px) {
  .header-contact-btn {
    display: none;
  }
}

/* Mobile Hamburger Toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
}

.menu-bar {
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.menu-toggle[aria-expanded="true"] .menu-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-bar:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] .menu-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Navigation Drawer */
.mobile-nav {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-main);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 32px 24px;
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: transform var(--transition-smooth), opacity var(--transition-smooth);
  z-index: 99;
}

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

.mobile-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  padding: 12px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.mobile-nav-link:hover, .mobile-nav-link.active {
  color: var(--accent-cyan);
}

/* --------------------------------------------------------------------------
   Buttons & Gaming HUD Tags
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 26px;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-base);
  min-height: 48px;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #ffffff;
  box-shadow: 0 4px 18px var(--accent-cyan-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 26px var(--accent-cyan-glow);
}

.btn-secondary {
  background: var(--bg-surface-elevated);
  border-color: var(--border-subtle);
  color: var(--text-primary);
}

.btn-secondary:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  transform: translateY(-2px);
}

/* Gaming HUD Tags & Badges */
.hud-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.725rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  background: var(--hud-tag-bg);
  border: 1px solid var(--hud-tag-border);
  color: var(--hud-tag-text);
}

.hud-tag-live {
  background: var(--badge-live-bg);
  border-color: var(--badge-live-border);
  color: var(--badge-live-text);
}

.hud-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: currentColor;
  box-shadow: 0 0 8px currentColor;
  animation: pulseDot 2s infinite ease-in-out;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.hud-meta-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

/* --------------------------------------------------------------------------
   HERO SECTION
   -------------------------------------------------------------------------- */
.hero-section {
  position: relative;
  min-height: 90vh;
  padding-top: calc(var(--header-height) + 60px);
  padding-bottom: 80px;
  display: flex;
  align-items: center;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-studio-name {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 12px;
}

.hero-headline {
  font-size: clamp(2.5rem, 5vw, 4.2rem);
  font-weight: 800;
  line-height: 1.08;
  margin-bottom: 24px;
  letter-spacing: -0.03em;
  background: var(--accent-gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 540px;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}

/* Decorative Hero HUD Display (Right Side) */
.hero-visual-container {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-hud-card {
  width: 100%;
  max-width: 440px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  position: relative;
  transform: perspective(1000px) rotateY(-4deg) rotateX(2deg);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.hero-hud-card:hover {
  transform: perspective(1000px) rotateY(0deg) rotateX(0deg) translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.hud-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 16px;
  margin-bottom: 24px;
}

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

.hud-card-dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
  opacity: 0.5;
}

.hud-card-dots span:nth-child(1) { background: #ef4444; opacity: 0.8; }
.hud-card-dots span:nth-child(2) { background: #eab308; opacity: 0.8; }
.hud-card-dots span:nth-child(3) { background: #10b981; opacity: 0.8; }

.hud-system-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.hud-diagram-body {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 16px 0;
}

.hud-svg-monolith {
  width: 180px;
  height: 150px;
  margin-bottom: 20px;
}

.hud-specs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  width: 100%;
  text-align: left;
  margin-top: 16px;
  border-top: 1px solid var(--border-subtle);
  padding-top: 16px;
}

.hud-spec-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.hud-spec-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hud-spec-value {
  font-family: var(--font-mono);
  font-size: 0.775rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* --------------------------------------------------------------------------
   SECTION HEADINGS & 3D CARDS
   -------------------------------------------------------------------------- */
.section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 60px auto;
}

.section-tag {
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1.0625rem;
  color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   3D PRODUCT SHOWCASE ("WHAT WE BUILD")
   -------------------------------------------------------------------------- */
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.showcase-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 380px;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  position: relative;
  overflow: hidden;
}

.showcase-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent-gradient);
  opacity: 0.6;
}

.showcase-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--border-card-hover);
}

.showcase-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}

.showcase-number {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent-cyan);
}

.showcase-icon-box {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--hud-tag-bg);
  border: 1px solid var(--hud-tag-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
}

.showcase-title {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.showcase-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 24px;
}

.showcase-footer {
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* --------------------------------------------------------------------------
   GAMES & APPLICATIONS SECTIONS (COMING SOON REALISM)
   -------------------------------------------------------------------------- */
.coming-soon-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 40px;
}

.locked-product-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  position: relative;
}

.locked-product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.locked-object-frame {
  width: 100%;
  height: 180px;
  background: rgba(0, 0, 0, 0.15);
  border: 1px dashed var(--border-subtle);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  position: relative;
  overflow: hidden;
}

.locked-object-frame svg {
  opacity: 0.8;
  filter: drop-shadow(0 0 10px var(--accent-cyan-glow));
}

.locked-lock-badge {
  position: absolute;
  top: 12px;
  right: 12px;
}

.locked-type {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--accent-cyan);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.locked-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.locked-status {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.announcement-banner {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   HOW WE BUILD (OUR APPROACH - 4 STEPS)
   -------------------------------------------------------------------------- */
.approach-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.approach-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: relative;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.approach-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.approach-step-num {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--accent-cyan);
  margin-bottom: 16px;
  display: block;
}

.approach-title {
  font-size: 1.25rem;
  margin-bottom: 10px;
}

.approach-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   ABOUT SECTION (WITH 3D VISUAL CLUSTER)
   -------------------------------------------------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.about-text-col p {
  font-size: 1.0625rem;
  line-height: 1.75;
  margin-bottom: 20px;
}

.about-meta-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
}

.about-meta-row {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.about-meta-row strong {
  color: var(--text-primary);
  min-width: 100px;
}

.about-visual-cluster {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

/* --------------------------------------------------------------------------
   SOMETHING IS COMING (FEATURE BANNER)
   -------------------------------------------------------------------------- */
.coming-feature-section {
  padding: 100px 0;
  position: relative;
  text-align: center;
}

.coming-feature-box {
  background: var(--bg-card);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-xl);
  padding: 70px 32px;
  box-shadow: var(--shadow-glow), var(--shadow-card);
  position: relative;
  overflow: hidden;
}

.coming-feature-box::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, var(--accent-cyan-glow) 0%, transparent 60%);
  opacity: 0.4;
  pointer-events: none;
}

.coming-feature-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 20px;
  background: var(--accent-gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.coming-feature-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 580px;
  margin: 0 auto;
}

/* --------------------------------------------------------------------------
   CONTACT SECTION ("LET'S CONNECT")
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  padding: 48px 36px;
  box-shadow: var(--shadow-card);
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin: 32px 0;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-info-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--hud-tag-bg);
  border: 1px solid var(--hud-tag-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  flex-shrink: 0;
}

.contact-info-label {
  font-family: var(--font-mono);
  font-size: 0.725rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

.contact-info-value {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
}

.email-copy-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.copy-email-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 44px;
  padding: 8px 16px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.copy-email-btn:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan-glow);
}

.copy-email-btn.copied {
  color: #10b981;
  border-color: rgba(16, 185, 129, 0.6);
  background: rgba(16, 185, 129, 0.1);
}

/* Contact Form */
.contact-form-section {
  margin-top: 60px;
}

.contact-form-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: left;
}

.form-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.form-label .required-star {
  color: var(--accent-cyan);
}

.form-input, .form-textarea {
  width: 100%;
  min-height: 48px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--text-primary);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 12px var(--accent-cyan-glow);
}

.form-textarea {
  min-height: 130px;
  resize: vertical;
}

.form-error-msg {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #ef4444;
  display: none;
}

.form-error-msg.visible {
  display: block;
}

.form-input.has-error, .form-textarea.has-error {
  border-color: #ef4444;
}

/* Success / Mailto Notification Box */
.form-status-box {
  display: none;
  background: rgba(0, 217, 255, 0.08);
  border: 1px solid var(--accent-cyan);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-top: 20px;
  text-align: left;
  box-shadow: 0 0 20px var(--accent-cyan-glow);
}

.form-status-box.visible {
  display: block;
}

.form-status-title {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent-cyan);
  letter-spacing: 0.05em;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.form-status-text {
  font-size: 0.95rem;
  color: var(--text-primary);
  line-height: 1.6;
  margin-bottom: 8px;
}

.form-status-fallback {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.form-status-fallback a {
  color: var(--accent-cyan);
  font-weight: 600;
  text-decoration: underline;
}

@media (max-width: 768px) {
  .form-row {
    grid-template-columns: 1fr;
  }
  .contact-form-card {
    padding: 24px;
  }
}

/* --------------------------------------------------------------------------
   FOOTER
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  padding: 70px 0 36px 0;
  margin-top: 40px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border-subtle);
}

.footer-brand h4 {
  font-size: 1.25rem;
  margin-bottom: 8px;
}

.footer-brand p {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.footer-col h5 {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.footer-nav {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-nav a {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.footer-nav a:hover {
  color: var(--accent-cyan);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 32px;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   PRIVACY POLICY & CONTENT PAGES
   -------------------------------------------------------------------------- */
.content-section {
  padding: calc(var(--header-height) + 50px) 0 80px 0;
}

.legal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 48px;
  box-shadow: var(--shadow-card);
  line-height: 1.8;
}

.legal-card h2 {
  font-size: 1.65rem;
  margin-top: 40px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-subtle);
}

.legal-card h3 {
  font-size: 1.25rem;
  margin-top: 24px;
  margin-bottom: 12px;
}

.legal-card p, .legal-card ul {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.legal-card ul {
  padding-left: 24px;
}

.legal-card li {
  margin-bottom: 8px;
}

/* --------------------------------------------------------------------------
   RESPONSIVE DESIGN (MOBILE & TABLET)
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .showcase-grid {
    grid-template-columns: 1fr;
  }
  .approach-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .coming-soon-grid {
    grid-template-columns: 1fr;
  }
  .about-grid {
    grid-template-columns: 1fr;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 66px;
  }
  .nav-links {
    display: none;
  }
  .menu-toggle {
    display: flex;
  }
  .approach-grid {
    grid-template-columns: 1fr;
  }
  .hero-actions {
    flex-direction: column;
  }
  .btn {
    width: 100%;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

/* Accessibility: prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}