/* ==========================================================================
   MetaGrowth Consulting - Design System & Modern Themes
   Default: Light Mode (Clean White Tech Aesthetic)
   Toggle: Dark Mode (Cyberpunk & Space Gray High-Tech Aesthetic)
   ========================================================================== */

:root,
[data-theme="light"] {
  /* Surface & Backgrounds */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --bg-card: rgba(255, 255, 255, 0.9);
  --bg-card-hover: #ffffff;
  --border-subtle: rgba(15, 23, 42, 0.08);
  --border-glow: rgba(99, 102, 241, 0.25);
  --border-accent: rgba(2, 132, 199, 0.35);
  
  /* Typography */
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  
  /* Brand Accents */
  --accent-cyan: #0284c7;
  --accent-indigo: #4f46e5;
  --accent-purple: #9333ea;
  --accent-emerald: #059669;
  --accent-amber: #d97706;
  
  /* Gradients */
  --gradient-brand: linear-gradient(135deg, #0284c7 0%, #4f46e5 50%, #9333ea 100%);
  --gradient-glow: radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.12) 0%, transparent 70%);
  --gradient-card: linear-gradient(180deg, rgba(255, 255, 255, 1) 0%, rgba(248, 250, 252, 0.8) 100%);
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
  --shadow-card: 0 4px 20px -2px rgba(15, 23, 42, 0.05), 0 0 1px rgba(15, 23, 42, 0.1);
  --shadow-glow: 0 12px 35px -5px rgba(99, 102, 241, 0.15);
  --shadow-cyan-glow: 0 10px 30px -5px rgba(2, 132, 199, 0.15);

  /* Component Colors */
  --header-bg: rgba(255, 255, 255, 0.85);
  --hero-pill-bg: rgba(99, 102, 241, 0.08);
  --hero-bg-gradient: 
    radial-gradient(at 10% 10%, rgba(99, 102, 241, 0.06) 0px, transparent 50%),
    radial-gradient(at 90% 20%, rgba(2, 132, 199, 0.07) 0px, transparent 50%),
    radial-gradient(at 50% 80%, rgba(147, 51, 234, 0.05) 0px, transparent 50%);
  --terminal-bg: #090d16;
  --terminal-border: rgba(99, 102, 241, 0.25);
  --interactive-preview-bg: #f8fafc;
  --interactive-preview-border: #e2e8f0;
  --tag-bg: #f1f5f9;
  --input-bg: #ffffff;
  --input-border: #cbd5e1;
  --modal-bg: #ffffff;
  --modal-backdrop: rgba(15, 23, 42, 0.6);
  --footer-bg: #f8fafc;
  --footer-bottom-border: #e2e8f0;
  --theme-switch-bg: rgba(15, 23, 42, 0.04);
}

[data-theme="dark"] {
  /* Surface & Backgrounds */
  --bg-primary: #0a0b10;
  --bg-secondary: #12141f;
  --bg-tertiary: #1a1d2e;
  --bg-card: rgba(18, 20, 31, 0.75);
  --bg-card-hover: rgba(26, 29, 46, 0.85);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(99, 102, 241, 0.3);
  --border-accent: rgba(56, 189, 248, 0.4);
  
  /* Typography */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  /* Brand Accents */
  --accent-cyan: #38bdf8;
  --accent-indigo: #6366f1;
  --accent-purple: #a855f7;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  
  /* Gradients */
  --gradient-brand: linear-gradient(135deg, #38bdf8 0%, #6366f1 50%, #a855f7 100%);
  --gradient-glow: radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
  --gradient-card: linear-gradient(180deg, rgba(255, 255, 255, 0.04) 0%, rgba(255, 255, 255, 0.01) 100%);
  
  /* Shadows */
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.2);
  --shadow-card: 0 10px 30px -5px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 35px rgba(99, 102, 241, 0.25);
  --shadow-cyan-glow: 0 0 30px rgba(56, 189, 248, 0.2);

  /* Component Colors */
  --header-bg: rgba(10, 11, 16, 0.8);
  --hero-pill-bg: rgba(99, 102, 241, 0.12);
  --hero-bg-gradient: 
    radial-gradient(at 10% 10%, rgba(99, 102, 241, 0.1) 0px, transparent 50%),
    radial-gradient(at 90% 20%, rgba(56, 189, 248, 0.08) 0px, transparent 50%),
    radial-gradient(at 50% 80%, rgba(168, 85, 247, 0.07) 0px, transparent 50%);
  --terminal-bg: #12141f;
  --terminal-border: var(--border-glow);
  --interactive-preview-bg: rgba(0, 0, 0, 0.35);
  --interactive-preview-border: rgba(255, 255, 255, 0.08);
  --tag-bg: rgba(255, 255, 255, 0.04);
  --input-bg: rgba(255, 255, 255, 0.05);
  --input-border: var(--border-subtle);
  --modal-bg: #12141f;
  --modal-backdrop: rgba(10, 11, 16, 0.85);
  --footer-bg: #06070a;
  --footer-bottom-border: rgba(255, 255, 255, 0.08);
  --theme-switch-bg: rgba(255, 255, 255, 0.05);
}

:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

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

/* Typography Utilities */
h1, h2, h3, h4 {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

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

.text-gradient {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-cyan {
  color: var(--accent-cyan);
}

.text-emerald {
  color: var(--accent-emerald);
}

/* Layout */
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 96px 0;
  position: relative;
}

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: var(--header-bg);
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition-normal);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.logo-icon {
  width: 38px;
  height: 38px;
  background: var(--gradient-brand);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.35);
}

.logo-text span {
  color: var(--accent-cyan);
}

.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 32px;
}

.nav-link {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 500;
  position: relative;
  padding: 6px 0;
}

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

.nav-badge {
  font-size: 0.65rem;
  background: linear-gradient(135deg, #10b981, #059669);
  color: #fff;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  font-weight: 700;
  margin-left: 4px;
  vertical-align: middle;
  text-transform: uppercase;
}

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

.theme-switch,
.lang-switch {
  background: var(--theme-switch-bg);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 7px 12px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.theme-switch {
  width: 38px;
  height: 38px;
  padding: 0;
  font-size: 1rem;
}

.theme-switch:hover,
.lang-switch:hover {
  color: var(--text-primary);
  border-color: var(--accent-cyan);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-brand);
  color: #ffffff;
  box-shadow: 0 4px 18px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  box-shadow: 0 6px 26px rgba(99, 102, 241, 0.5);
  transform: translateY(-2px);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(10px);
}

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

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

/* Mobile Menu Hamburger */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 8px;
}

/* Hero Section */
.hero {
  padding-top: 170px;
  padding-bottom: 90px;
  text-align: center;
  position: relative;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: var(--hero-pill-bg);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-bottom: 28px;
  box-shadow: var(--shadow-sm);
}

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

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.3); opacity: 1; box-shadow: 0 0 16px var(--accent-cyan); }
  100% { transform: scale(0.95); opacity: 0.8; }
}

.hero-title {
  font-size: clamp(2.5rem, 5.5vw, 4.4rem);
  font-weight: 800;
  max-width: 980px;
  margin: 0 auto 24px;
  letter-spacing: -0.03em;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 760px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-ctas {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-bottom: 60px;
  flex-wrap: wrap;
}

/* High-Tech Terminal Card (Hero) */
.hero-visual {
  max-width: 900px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  background: var(--terminal-bg);
  border: 1px solid var(--terminal-border);
  box-shadow: var(--shadow-glow);
  overflow: hidden;
  text-align: left;
  color: #f8fafc;
}

.terminal-header {
  background: rgba(255, 255, 255, 0.04);
  padding: 12px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.terminal-dots {
  display: flex;
  gap: 8px;
}

.terminal-dots span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: inline-block;
}

.dot-red { background: #ef4444; }
.dot-yellow { background: #eab308; }
.dot-green { background: #22c55e; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: #94a3b8;
}

.terminal-body {
  padding: 24px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: #94a3b8;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.terminal-metric {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 16px;
}

.terminal-metric-label {
  font-size: 0.75rem;
  color: #64748b;
  text-transform: uppercase;
  margin-bottom: 6px;
  display: flex;
  justify-content: space-between;
}

.terminal-metric-value {
  font-size: 1.4rem;
  font-weight: 700;
  color: #f8fafc;
}

.terminal-status-badge {
  color: #10b981;
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Ecosystem / Tools Section */
.ecosystem-section {
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-cyan);
  background: var(--hero-pill-bg);
  border: 1px solid var(--border-glow);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 64px;
}

.section-header h2 {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  margin-bottom: 18px;
}

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

.ecosystem-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.eco-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 40px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(12px);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.eco-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-brand);
}

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

.eco-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--accent-emerald);
  background: rgba(16, 185, 129, 0.12);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  margin-bottom: 20px;
  font-weight: 600;
}

.eco-title {
  font-size: 1.7rem;
  margin-bottom: 14px;
}

.eco-desc {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 28px;
  line-height: 1.6;
}

.eco-features-list {
  list-style: none;
  margin-bottom: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.eco-features-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.eco-features-list li svg {
  color: var(--accent-cyan);
  flex-shrink: 0;
}

/* Interactive Simulator / Benchmark Previews inside Cards */
.interactive-preview {
  background: var(--interactive-preview-bg);
  border: 1px solid var(--interactive-preview-border);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-bottom: 28px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.simulator-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.simulator-row:last-child {
  border-bottom: none;
}

.model-pill {
  background: rgba(99, 102, 241, 0.15);
  color: var(--accent-indigo);
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
}

[data-theme="dark"] .model-pill {
  color: var(--accent-cyan);
}

.latency-meter {
  color: var(--accent-emerald);
  font-weight: 600;
}

/* Services Bento Grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-card);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  backdrop-filter: blur(10px);
}

.service-card.featured {
  grid-column: span 2;
  border-color: var(--border-glow);
}

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

.service-icon-wrapper {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--hero-pill-bg);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--accent-cyan);
}

.service-card.featured .service-icon-wrapper {
  background: var(--gradient-brand);
  color: #fff;
}

.service-title {
  font-size: 1.35rem;
  margin-bottom: 12px;
}

.service-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 20px;
  flex-grow: 1;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.service-tag {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  background: var(--tag-bg);
  border: 1px solid var(--border-subtle);
  padding: 3px 8px;
  border-radius: 4px;
  color: var(--text-secondary);
  font-weight: 500;
}

/* How It Works (Engagement Framework) */
.framework-timeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  position: relative;
}

.framework-timeline::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 5%;
  right: 5%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-indigo), var(--accent-purple));
  z-index: 1;
  opacity: 0.3;
}

.framework-step {
  position: relative;
  z-index: 2;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  text-align: center;
  box-shadow: var(--shadow-card);
}

.step-number {
  width: 44px;
  height: 44px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--bg-secondary);
  border: 2px solid var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  box-shadow: 0 0 15px rgba(2, 132, 199, 0.2);
}

.step-title {
  font-size: 1.05rem;
  margin-bottom: 10px;
}

.step-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Proof of Work / Case Highlights */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.case-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.case-metric {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  margin: 16px 0 12px;
}

.case-quote {
  font-style: italic;
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 24px;
  line-height: 1.6;
}

.case-author {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid var(--border-subtle);
  padding-top: 16px;
}

.author-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--gradient-brand);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
}

.author-info h4 {
  font-size: 0.95rem;
  margin-bottom: 2px;
}

.author-info p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Pricing Section */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  position: relative;
}

.pricing-card.popular {
  border-color: var(--accent-cyan);
  box-shadow: var(--shadow-cyan-glow);
  transform: scale(1.03);
}

.popular-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-brand);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.pricing-plan-name {
  font-size: 1.25rem;
  margin-bottom: 8px;
}

.pricing-plan-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  min-height: 40px;
}

.pricing-price {
  font-size: 1.8rem;
  font-weight: 800;
  font-family: var(--font-mono);
  margin-bottom: 24px;
  color: var(--text-primary);
}

.pricing-price span {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 400;
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
  flex-grow: 1;
}

.pricing-features li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.pricing-features li svg {
  color: var(--accent-cyan);
  flex-shrink: 0;
  margin-top: 3px;
}

/* FAQ Accordion */
.faq-container {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--accent-cyan);
}

.faq-question {
  width: 100%;
  padding: 22px 28px;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.05rem;
  font-weight: 600;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

.faq-icon {
  font-size: 1.3rem;
  color: var(--accent-cyan);
  transition: transform var(--transition-fast);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out, padding 0.35s ease-out;
  padding: 0 28px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding-bottom: 22px;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

/* Modal Dialog (Native HTML5 <dialog> with modern light-dismiss & backdrop) */
dialog#consultationDialog {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border: 1px solid var(--border-glow);
  background: var(--modal-bg);
  color: var(--text-primary);
  border-radius: var(--radius-lg);
  padding: 36px;
  max-width: 560px;
  width: 90vw;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25), var(--shadow-glow);
  z-index: 1000;
}

dialog::backdrop {
  background-color: var(--modal-backdrop);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.modal-header h3 {
  font-size: 1.4rem;
}

.modal-close-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
}

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

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-control:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 10px rgba(2, 132, 199, 0.2);
}

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
}

/* Footer */
.footer {
  background: var(--footer-bg);
  border-top: 1px solid var(--border-subtle);
  padding: 80px 0 40px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 60px;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-top: 16px;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 20px;
  color: var(--text-primary);
}

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

.footer-col a {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

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

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .ecosystem-grid,
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .framework-timeline {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .framework-timeline::before {
    display: none;
  }
  
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 76px;
    left: 0;
    width: 100%;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-subtle);
    flex-direction: column;
    padding: 24px;
    gap: 18px;
    box-shadow: var(--shadow-card);
  }
  
  .nav-menu.active {
    display: flex;
  }
  
  .mobile-toggle {
    display: block;
  }
  
  .ecosystem-grid,
  .services-grid,
  .cases-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  
  .service-card.featured {
    grid-column: span 1;
  }
  
  .terminal-body {
    grid-template-columns: 1fr;
  }
  
  .footer-top {
    grid-template-columns: 1fr;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}