/* ==========================================================================
   CUEVANCE Official Website (cuevance.com) - Master Design System
   Mobile-First | Triple Liquid Themes | Multi-Language | High-Performance FX
   ========================================================================== */

:root {
  --font-brand: 'Audiowide', cursive, sans-serif;
  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  --font-heading: 'Kosugi', 'Noto Sans SC', var(--font-sans);
  --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, Monaco, monospace;
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --------------------------------------------------------------------------
   THEME 1: NEON (Dark Spatial Liquid) - Standard
   -------------------------------------------------------------------------- */
body.theme-neon,
body.theme-cyber-neon {
  --bg-page: #080c1a;
  --bg-gradient: radial-gradient(ellipse at 20% 0%, rgba(56, 189, 248, 0.14) 0%, transparent 50%),
                 radial-gradient(ellipse at 80% 10%, rgba(139, 92, 246, 0.12) 0%, transparent 50%),
                 radial-gradient(ellipse at 50% 90%, rgba(52, 211, 153, 0.10) 0%, transparent 50%);
  --text-primary: #ffffff;
  --text-secondary: #e2e8f0;
  --text-muted: #94a3b8;
  
  --card-bg: rgba(12, 18, 38, 0.78);
  --card-border: rgba(255, 255, 255, 0.14);
  --card-hover-border: rgba(56, 189, 248, 0.65);
  --card-shadow: 0 4px 24px -2px rgba(0, 0, 0, 0.55), inset 0 1px 1px 0 rgba(255, 255, 255, 0.2);
  --card-glow: 0 0 35px -5px rgba(56, 189, 248, 0.3);
  
  --orb-1: rgba(56, 189, 248, 0.22);
  --orb-2: rgba(139, 92, 246, 0.18);
  --orb-3: rgba(52, 211, 153, 0.15);
  --grid-opacity: 0.035;
  
  --accent-cyan: #38bdf8;
  --accent-emerald: #34d399;
  --accent-purple: #a78bfa;
  --accent-amber: #fbbf24;
  --accent-on-cyan: #020617;
  --accent-on-emerald: #020617;
  
  --nav-bg: rgba(8, 12, 26, 0.82);
  --nav-border: rgba(255, 255, 255, 0.12);
  --input-bg: rgba(15, 23, 42, 0.75);
  --input-border: rgba(255, 255, 255, 0.16);
  --spotlight-color: rgba(56, 189, 248, 0.14);
  
  --badge-bg: rgba(56, 189, 248, 0.15);
  --badge-border: rgba(56, 189, 248, 0.4);
  --badge-text: #38bdf8;
}

/* --------------------------------------------------------------------------
   THEME 2: STUDIO (Light Organic Glass)
   -------------------------------------------------------------------------- */
body.theme-studio,
body.theme-warm-studio {
  --bg-page: #f8fafc;
  --bg-gradient: radial-gradient(ellipse at 10% 0%, rgba(13, 148, 136, 0.08) 0%, transparent 45%),
                 radial-gradient(ellipse at 90% 15%, rgba(99, 102, 241, 0.06) 0%, transparent 45%),
                 radial-gradient(ellipse at 50% 95%, rgba(245, 158, 11, 0.05) 0%, transparent 45%);
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  
  --card-bg: rgba(255, 255, 255, 0.88);
  --card-border: rgba(203, 213, 225, 0.95);
  --card-hover-border: rgba(13, 148, 136, 0.7);
  --card-shadow: 0 4px 24px -2px rgba(15, 23, 42, 0.08), inset 0 1px 1px 0 rgba(255, 255, 255, 1.0);
  --card-glow: 0 0 28px -5px rgba(13, 148, 136, 0.25);
  
  --orb-1: rgba(13, 148, 136, 0.12);
  --orb-2: rgba(99, 102, 241, 0.08);
  --orb-3: rgba(245, 158, 11, 0.06);
  --grid-opacity: 0.02;
  
  --accent-cyan: #0d9488;
  --accent-emerald: #059669;
  --accent-purple: #4f46e5;
  --accent-amber: #d97706;
  --accent-on-cyan: #ffffff;
  --accent-on-emerald: #ffffff;
  
  --nav-bg: rgba(255, 255, 255, 0.88);
  --nav-border: rgba(226, 232, 240, 0.9);
  --input-bg: rgba(241, 245, 249, 0.85);
  --input-border: rgba(203, 213, 225, 0.8);
  --spotlight-color: rgba(13, 148, 136, 0.10);
  
  --badge-bg: rgba(13, 148, 136, 0.12);
  --badge-border: rgba(13, 148, 136, 0.45);
  --badge-text: #0f766e;
}

/* --------------------------------------------------------------------------
   THEME 3: Cyber (Hyper Neon Matrix)
   -------------------------------------------------------------------------- */
body.theme-cyber {
  --bg-page: #030308;
  --bg-gradient: radial-gradient(ellipse at 15% 5%, rgba(244, 63, 94, 0.16) 0%, transparent 45%),
                 radial-gradient(ellipse at 85% 15%, rgba(6, 182, 212, 0.15) 0%, transparent 45%),
                 radial-gradient(ellipse at 50% 90%, rgba(234, 179, 8, 0.12) 0%, transparent 45%);
  --text-primary: #ffffff;
  --text-secondary: #f1f5f9;
  --text-muted: #cbd5e1;
  
  --card-bg: rgba(10, 10, 20, 0.86);
  --card-border: rgba(255, 255, 255, 0.22);
  --card-hover-border: #f43f5e;
  --card-shadow: 0 4px 30px -2px rgba(0, 0, 0, 0.85), inset 0 1px 1px 0 rgba(255, 255, 255, 0.3);
  --card-glow: 0 0 40px -2px rgba(244, 63, 94, 0.35);
  
  --orb-1: rgba(244, 63, 94, 0.25);
  --orb-2: rgba(6, 182, 212, 0.22);
  --orb-3: rgba(234, 179, 8, 0.18);
  --grid-opacity: 0.06;
  
  --accent-cyan: #06b6d4;
  --accent-emerald: #10b981;
  --accent-purple: #f43f5e;
  --accent-amber: #eab308;
  --accent-on-cyan: #000000;
  --accent-on-emerald: #000000;
  
  --nav-bg: rgba(5, 5, 12, 0.90);
  --nav-border: rgba(255, 255, 255, 0.18);
  --input-bg: rgba(15, 15, 28, 0.85);
  --input-border: rgba(255, 255, 255, 0.25);
  --spotlight-color: rgba(244, 63, 94, 0.16);
  
  --badge-bg: rgba(244, 63, 94, 0.18);
  --badge-border: rgba(244, 63, 94, 0.55);
  --badge-text: #fb7185;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-page);
  background-image: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Ambient Background Layer */
.ambient-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.ambient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.8;
  will-change: transform;
  animation: floatOrb 24s ease-in-out infinite alternate;
}

.orb-1 {
  width: 550px;
  height: 550px;
  background: var(--orb-1);
  top: -10%;
  left: 10%;
  animation-duration: 28s;
}

.orb-2 {
  width: 600px;
  height: 600px;
  background: var(--orb-2);
  top: 40%;
  right: -5%;
  animation-duration: 32s;
  animation-delay: -7s;
}

.orb-3 {
  width: 500px;
  height: 500px;
  background: var(--orb-3);
  bottom: -10%;
  left: 30%;
  animation-duration: 25s;
  animation-delay: -14s;
}

.cyber-grid-overlay {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, var(--grid-opacity)) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, var(--grid-opacity)) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(circle at 50% 30%, black 40%, transparent 90%);
}

@keyframes floatOrb {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(60px, 40px) scale(1.1); }
  100% { transform: translate(-40px, 80px) scale(0.95); }
}

/* Container */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  background: var(--nav-bg);
  border-bottom: 1px solid var(--nav-border);
  transition: background var(--transition-normal), border-color var(--transition-normal);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

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

.brand-icon-wrap {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.3);
  box-shadow: 0 0 15px rgba(56, 189, 248, 0.2);
}

.brand-icon-wrap img {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  object-fit: contain;
}

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

.brand-name {
  font-family: var(--font-brand);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  background: linear-gradient(135deg, #ffffff 30%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

body.theme-studio .brand-name {
  background: linear-gradient(135deg, #0f172a 40%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

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

.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
  padding: 6px 0;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-cyan);
  transition: width var(--transition-fast);
}

.nav-links a:hover::after {
  width: 100%;
}

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

/* Control Pills (Theme & Lang) */
.control-pill {
  display: flex;
  align-items: center;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 9999px;
  padding: 3px;
  gap: 2px;
}

.pill-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 5px 10px;
  border-radius: 9999px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pill-btn:hover {
  color: var(--text-primary);
}

.pill-btn.active {
  background: var(--accent-cyan);
  color: var(--accent-on-cyan);
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.35);
}

/* Mobile Hamburger Button */
.mobile-menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.25);
  cursor: pointer;
  padding: 0;
  position: relative;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  transition: all var(--transition-fast);
  z-index: 102;
}

.mobile-menu-toggle:hover {
  background: rgba(56, 189, 248, 0.16);
  border-color: var(--accent-cyan);
}

.mobile-menu-toggle .hamburger-bar {
  display: block;
  width: 18px;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease;
  transform-origin: center;
}

.mobile-menu-toggle.is-active .hamburger-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobile-menu-toggle.is-active .hamburger-bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.mobile-menu-toggle.is-active .hamburger-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav Drawer */
.mobile-nav-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--nav-bg);
  backdrop-filter: blur(28px) saturate(190%);
  -webkit-backdrop-filter: blur(28px) saturate(190%);
  border-bottom: 1px solid var(--nav-border);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
  max-height: calc(100vh - 64px);
  overflow-y: auto;
  z-index: 99;
}

.mobile-nav-menu.is-open {
  display: block;
  animation: mobileNavDrop 0.24s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes mobileNavDrop {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.mobile-nav-content {
  padding: 20px 24px 28px;
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.mobile-nav-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid transparent;
  transition: all var(--transition-fast);
}

.mobile-nav-links a:hover,
.mobile-nav-links a:active {
  background: rgba(56, 189, 248, 0.1);
  border-color: rgba(56, 189, 248, 0.25);
  color: var(--accent-cyan);
  padding-left: 20px;
}

.mobile-nav-controls {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-top: 18px;
  border-top: 1px solid var(--card-border);
}

.mobile-control-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.mobile-control-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.mobile-control-row .control-pill {
  flex-shrink: 0;
}

.mobile-nav-version {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 6px;
  letter-spacing: 0.08em;
  opacity: 0.75;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  padding: 100px 0 80px;
  text-align: center;
  position: relative;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 9999px;
  background: var(--badge-bg);
  border: 1px solid var(--badge-border);
  color: var(--badge-text);
  font-size: 0.8rem;
  font-weight: 600;
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
  margin-bottom: 24px;
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.15);
  animation: heroFadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.hero-badge .pulse-dot {
  width: 8px;
  height: 8px;
  background: currentColor;
  border-radius: 50%;
  box-shadow: 0 0 8px currentColor;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 5.5vw, 4.2rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  max-width: 960px;
  margin: 0 auto 24px;
  animation: heroFadeUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.1s both;
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, #ffffff 20%, var(--accent-cyan) 60%, var(--accent-purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

body.theme-studio .hero-title .gradient-text {
  background: linear-gradient(135deg, #0f172a 20%, var(--accent-cyan) 60%, var(--accent-purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 auto 36px;
  font-weight: 400;
  animation: heroFadeUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.2s both;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  animation: heroFadeUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.3s both;
}

@keyframes heroFadeUp {
  0% {
    opacity: 0;
    transform: translateY(24px) scale(0.98);
    filter: blur(4px);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
  }
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-emerald));
  color: var(--accent-on-cyan);
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(56, 189, 248, 0.4);
  transition: all var(--transition-fast);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(56, 189, 248, 0.55);
}

.btn-glass {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 12px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--card-shadow);
  transition: all var(--transition-fast);
}

.btn-glass:hover {
  transform: translateY(-2px);
  border-color: var(--card-hover-border);
  box-shadow: var(--card-glow);
}

/* ==========================================================================
   Telemetry / Metrics Strip
   ========================================================================== */
.metrics-strip {
  margin: 40px auto 80px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.metric-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 24px 20px;
  border-radius: 16px;
  text-align: center;
  box-shadow: var(--card-shadow);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.metric-card:hover {
  border-color: var(--card-hover-border);
  transform: translateY(-3px);
  box-shadow: var(--card-glow);
}

.metric-val {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-cyan);
  font-variant-numeric: tabular-nums;
  margin-bottom: 6px;
}

.metric-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ==========================================================================
   Section Common Styles
   ========================================================================== */
.section {
  padding: 90px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 56px;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-cyan);
  margin-bottom: 12px;
  font-weight: 600;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.25;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

/* ==========================================================================
   Solutions & Capabilities Grid
   ========================================================================== */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  max-width: 960px;
  margin: 0 auto;
}

.solution-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-radius: 20px;
  padding: 36px 28px;
  box-shadow: var(--card-shadow);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.solution-card:hover {
  transform: translateY(-5px);
  border-color: var(--card-hover-border);
  box-shadow: var(--card-glow);
}

/* Glisten / Shimmer Glint Effect on Hover */
.solution-card::after,
.craft-card::after,
.metric-card::after,
.ecosystem-banner::after,
.mini-app-item::after {
  content: '';
  position: absolute;
  top: -60%;
  left: -90%;
  width: 60%;
  height: 220%;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.05) 25%,
    rgba(255, 255, 255, 0.45) 50%,
    rgba(255, 255, 255, 0.75) 55%,
    rgba(255, 255, 255, 0.45) 60%,
    rgba(255, 255, 255, 0.05) 75%,
    transparent 100%
  );
  transform: rotate(26deg);
  pointer-events: none;
  opacity: 0;
  z-index: 5;
}

.solution-card:hover::after,
.craft-card:hover::after,
.metric-card:hover::after,
.ecosystem-banner:hover::after,
.mini-app-item:hover::after {
  animation: glintSweep 0.85s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes glintSweep {
  0% {
    left: -90%;
    opacity: 0;
  }
  15% {
    opacity: 1;
  }
  85% {
    opacity: 0.9;
  }
  100% {
    left: 150%;
    opacity: 0;
  }
}

.solution-icon-wrap {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 24px;
}

.solution-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 14px;
}

.solution-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.65;
  margin-bottom: 24px;
  flex-grow: 1;
}

.solution-features {
  list-style: none;
  border-top: 1px solid var(--card-border);
  padding-top: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.solution-features li {
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.solution-features li span.check {
  color: var(--accent-emerald);
  font-weight: bold;
}

/* ==========================================================================
   Ecosystem / Featured Apps Section
   ========================================================================== */
.ecosystem-banner {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-radius: 24px;
  padding: 48px;
  box-shadow: var(--card-shadow);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  margin-bottom: 40px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-normal);
}

.ecosystem-banner:hover {
  border-color: var(--card-hover-border);
  box-shadow: var(--card-glow);
}

.ecosystem-info h3 {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.ecosystem-info p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 28px;
}

.app-cards-mini {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.mini-app-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  border-radius: 14px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.mini-app-item:hover {
  border-color: var(--accent-cyan);
  transform: translateX(4px);
  box-shadow: 0 4px 16px rgba(56, 189, 248, 0.2);
}

.mini-app-icon {
  font-size: 1.8rem;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
}

.mini-app-meta h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 2px;
}

.mini-app-meta p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0;
}

.mini-app-tag {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-cyan);
  font-weight: 600;
}

/* ==========================================================================
   Philosophy / Craftsmanship Section
   ========================================================================== */
.craft-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.craft-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 20px;
  padding: 32px;
  box-shadow: var(--card-shadow);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.craft-card:hover {
  border-color: var(--card-hover-border);
  box-shadow: var(--card-glow);
  transform: translateY(-4px);
}

.craft-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.craft-num {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--accent-cyan);
  background: rgba(56, 189, 248, 0.12);
  padding: 4px 10px;
  border-radius: 8px;
}

.craft-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
}

.craft-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* ==========================================================================
   Contact / Inquiry Section
   ========================================================================== */
.contact-wrapper {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-radius: 24px;
  padding: 48px;
  box-shadow: var(--card-shadow);
  max-width: 800px;
  margin: 0 auto;
}

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

.form-full {
  grid-column: span 2;
}

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

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 12px 16px;
  border-radius: 10px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.25);
}

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

/* Contact Form Status Feedback & Loading */
.contact-status-msg {
  display: none;
  padding: 14px 18px;
  border-radius: 12px;
  font-size: 0.92rem;
  line-height: 1.5;
  font-weight: 600;
  text-align: center;
  animation: fadeInStatus 0.3s ease-out forwards;
}

.contact-status-msg.is-success {
  display: block;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: #10b981;
}

.contact-status-msg.is-error {
  display: block;
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #ef4444;
}

.btn-primary:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

@keyframes fadeInStatus {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--nav-border);
  padding: 60px 0 36px;
  background: var(--nav-bg);
  margin-top: 60px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1.2fr 1fr;
  gap: 36px;
  margin-bottom: 48px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  max-width: 320px;
  margin-top: 14px;
}

.footer-col h5 {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 18px;
  color: var(--text-primary);
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.85rem;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  border-top: 1px solid var(--card-border);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
  .solutions-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .metrics-strip {
    grid-template-columns: repeat(2, 1fr);
  }
  .ecosystem-banner {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .nav-actions {
    display: none;
  }
  .mobile-menu-toggle {
    display: flex;
  }
  .nav-inner {
    height: 64px;
  }
  .brand-group {
    gap: 10px;
  }
  .brand-icon-wrap {
    width: 36px;
    height: 36px;
  }
  .brand-icon-wrap img {
    width: 24px;
    height: 24px;
  }
  .brand-name {
    font-size: 1.15rem;
  }
  .brand-tagline {
    font-size: 0.6rem;
  }
  .solutions-grid {
    grid-template-columns: 1fr;
  }
  .craft-grid {
    grid-template-columns: 1fr;
  }
  .contact-form {
    grid-template-columns: 1fr;
  }
  .form-full {
    grid-column: span 1;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

/* ==========================================================================
   Scroll-Driven Reveal & Cinematic Entry Animations
   ========================================================================== */
.scroll-reveal {
  opacity: 0;
  transform: translateY(48px) scale(0.96);
  filter: blur(8px);
  transition: 
    opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.9s cubic-bezier(0.16, 1, 0.3, 1),
    filter 0.9s cubic-bezier(0.16, 1, 0.3, 1);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform, filter;
}

.scroll-reveal.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: blur(0);
}

/* スクロールで表示された瞬間に光がサッと走るシマー連動 */
.scroll-reveal.is-visible.card-glint-on-reveal::after {
  animation: glintSweep 0.95s cubic-bezier(0.16, 1, 0.3, 1) calc(var(--reveal-delay, 0ms) + 200ms) forwards;
}

@media (prefers-reduced-motion: reduce) {
  .scroll-reveal {
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
    transition: none !important;
  }
  .ambient-orb {
    animation: none !important;
  }
}

/* ==========================================================================
   Legal Center & Compliance Documentation Styles
   ========================================================================== */

/* Context Return Bar (Dynamic App Backlink) */
.context-return-bar {
  display: none;
  background: var(--badge-bg);
  border-bottom: 1px solid var(--badge-border);
  padding: 10px 16px;
  font-size: 0.88rem;
  font-weight: 600;
  text-align: center;
  position: sticky;
  top: 70px;
  z-index: 95;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  animation: slideDown 0.3s ease forwards;
}

@keyframes slideDown {
  from { transform: translateY(-100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.context-return-bar a {
  color: var(--accent-cyan);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

.context-return-bar a:hover {
  text-decoration: underline;
}

/* Breadcrumb Navigation */
.breadcrumb-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.breadcrumb-nav a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.breadcrumb-separator {
  opacity: 0.4;
}

.breadcrumb-current {
  color: var(--text-primary);
  font-weight: 600;
}

/* Legal Page Hero */
.legal-page-header {
  padding: 120px 0 40px;
}

.legal-header-inner {
  max-width: 900px;
}

.legal-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.legal-meta-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 12px;
  font-family: var(--font-mono);
}

.legal-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 9999px;
  background: var(--badge-bg);
  border: 1px solid var(--badge-border);
  color: var(--badge-text);
  font-weight: 600;
  font-size: 0.8rem;
}

/* Legal Grid Layout (Sidebar TOC + Content) */
.legal-layout-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 48px;
  padding-bottom: 100px;
  align-items: start;
}

/* Sticky Sidebar & Table of Contents */
.legal-sidebar {
  position: sticky;
  top: 100px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.legal-toc-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 24px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--card-shadow);
}

.legal-toc-title {
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.legal-toc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 0;
  margin: 0;
}

.legal-toc-list a {
  display: block;
  font-size: 0.88rem;
  line-height: 1.45;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 8px;
  border-left: 2px solid transparent;
  transition: all var(--transition-fast);
}

.legal-toc-list a:hover {
  background: rgba(56, 189, 248, 0.08);
  color: var(--accent-cyan);
}

.legal-toc-list a.active {
  background: var(--badge-bg);
  color: var(--accent-cyan);
  border-left-color: var(--accent-cyan);
  font-weight: 600;
}

.legal-quicklinks {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 20px;
}

.legal-quicklinks h5 {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.legal-quicklinks ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.legal-quicklinks a {
  color: var(--text-secondary);
  font-size: 0.85rem;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.legal-quicklinks a:hover {
  color: var(--accent-cyan);
}

/* Legal Main Content Area */
.legal-main-content {
  min-width: 0;
}

/* TL;DR Summary Card */
.tldr-card {
  background: var(--card-bg);
  border: 1px solid var(--accent-cyan);
  border-radius: 16px;
  padding: 24px 28px;
  margin-bottom: 40px;
  box-shadow: var(--card-glow);
  position: relative;
  overflow: hidden;
}

.tldr-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(to bottom, var(--accent-cyan), var(--accent-emerald));
}

.tldr-header {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--accent-cyan);
  margin-bottom: 14px;
}

.tldr-list {
  margin: 0;
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

.tldr-list strong {
  color: var(--text-primary);
}

/* Legal Sections & Articles */
.legal-card-wrap {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 40px 48px;
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: var(--card-shadow);
}

.legal-section {
  padding: 32px 0;
  border-bottom: 1px solid var(--card-border);
}

.legal-section:first-child {
  padding-top: 0;
}

.legal-section:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.legal-section-title {
  font-size: 1.35rem;
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  scroll-margin-top: 120px;
}

.section-num {
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  font-size: 1rem;
}

.legal-section p {
  color: var(--text-secondary);
  line-height: 1.85;
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.legal-section p:last-child {
  margin-bottom: 0;
}

.legal-section ol,
.legal-section ul {
  padding-left: 24px;
  color: var(--text-secondary);
  line-height: 1.85;
  font-size: 0.95rem;
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.legal-section li strong {
  color: var(--text-primary);
}

/* Callout Box (Important Engineering & Safety Alerts) */
.legal-callout {
  background: rgba(245, 158, 11, 0.10);
  border: 1px solid rgba(245, 158, 11, 0.35);
  border-radius: 12px;
  padding: 20px;
  margin: 20px 0;
  color: var(--text-secondary);
}

.legal-callout.safety-alert {
  background: rgba(239, 68, 68, 0.08);
  border-color: rgba(239, 68, 68, 0.35);
}

.legal-callout.privacy-highlight {
  background: rgba(52, 211, 153, 0.08);
  border-color: rgba(52, 211, 153, 0.35);
}

.callout-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-primary);
  margin-bottom: 8px;
}

/* Legal Tables */
.legal-table-wrap {
  overflow-x: auto;
  margin: 24px 0;
  border-radius: 12px;
  border: 1px solid var(--card-border);
}

.legal-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

.legal-table th,
.legal-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--card-border);
  vertical-align: top;
}

.legal-table th {
  background: rgba(56, 189, 248, 0.06);
  color: var(--text-primary);
  font-weight: 600;
  white-space: nowrap;
}

.legal-table tr:last-child td {
  border-bottom: none;
}

/* Legal Hub Cards Grid (for index.html) */
.legal-hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.legal-hub-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 18px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-normal);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
}

.legal-hub-card:hover {
  transform: translateY(-4px);
  border-color: var(--card-hover-border);
  box-shadow: var(--card-glow);
}

.hub-card-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.hub-card-title {
  font-size: 1.25rem;
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.hub-card-arrow {
  color: var(--accent-cyan);
  font-size: 1.2rem;
  transition: transform var(--transition-fast);
}

.legal-hub-card:hover .hub-card-arrow {
  transform: translateX(4px);
}

.hub-card-desc {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: 18px;
  flex-grow: 1;
}

.hub-card-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Responsive Styles for Legal Pages */
@media (max-width: 992px) {
  .legal-layout-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .legal-sidebar {
    position: static;
  }
  .legal-card-wrap {
    padding: 28px 20px;
  }
}

/* Print CSS Optimization */
@media print {
  .site-header,
  .site-footer,
  .ambient-bg,
  .nav-actions,
  .legal-sidebar,
  .context-return-bar,
  .hero-cta-group,
  .control-pill {
    display: none !important;
  }

  body {
    background: #ffffff !important;
    color: #000000 !important;
    font-size: 10pt;
    line-height: 1.5;
  }

  .legal-layout-grid {
    display: block !important;
    padding: 0 !important;
  }

  .legal-card-wrap {
    border: none !important;
    box-shadow: none !important;
    padding: 0 !important;
    background: transparent !important;
  }

  .legal-section-title {
    page-break-after: avoid;
    break-after: avoid;
    color: #000000 !important;
  }

  .legal-section {
    page-break-inside: avoid;
    break-inside: avoid;
    border-bottom: 1px solid #cccccc !important;
  }

  .tldr-card,
  .legal-callout {
    border: 1px solid #999999 !important;
    background: #f8f8f8 !important;
    color: #000000 !important;
  }

  a[href^="http"]:after {
    content: " (" attr(href) ")";
    font-size: 8pt;
    color: #555555;
  }
}