/* ═══════════════════════════════════════════════════════════════
   AI FACTORY — Premium Design System
   Theme: Brushed Titanium & Cyber Teal / Indigo
   ═══════════════════════════════════════════════════════════════ */

/* ── Google Fonts (Instrument Serif for editorial headlines) ── */
@import url('https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&display=swap');

/* ── Design Tokens ── */
:root {
  /* Backgrounds */
  --bg-primary:   #060810;
  --bg-secondary: #0C0F1A;
  --bg-tertiary:  #131728;
  --bg-card:      rgba(14, 17, 30, 0.65);

  /* Text */
  --text-primary:   #F0F2F8;
  --text-secondary: #8B95B0;
  --text-muted:     #5A6380;

  /* Accents */
  --accent-teal:    #14D4B8;
  --accent-cyan:    #06D6E0;
  --accent-indigo:  #7C5CFC;
  --accent-violet:  #A855F7;

  /* Gradients */
  --gradient-teal:    linear-gradient(135deg, #14D4B8 0%, #06D6E0 50%, #10B981 100%);
  --gradient-indigo:  linear-gradient(135deg, #7C5CFC 0%, #A855F7 100%);
  --gradient-mesh:    linear-gradient(135deg, #14D4B8 0%, #7C5CFC 50%, #06D6E0 100%);
  --gradient-text:    linear-gradient(90deg, #14D4B8 0%, #06D6E0 40%, #7C5CFC 100%);

  /* Glass */
  --glass-bg:       rgba(14, 17, 30, 0.55);
  --glass-border:   rgba(255, 255, 255, 0.06);
  --glass-glow:     rgba(20, 212, 184, 0.08);

  /* Misc */
  --transition:     all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --radius-sm:      8px;
  --radius-md:      14px;
  --radius-lg:      20px;
  --radius-xl:      28px;

  /* Typography */
  --font-sans:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Outfit', var(--font-sans);
  --font-serif:   'Instrument Serif', Georgia, serif;
}

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

html {
  scroll-behavior: smooth;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

body {
  position: relative;
  min-height: 100vh;
  line-height: 1.7;
}

a { color: var(--accent-teal); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent-cyan); }

/* ── Animated Gradient Mesh Background ── */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse 80% 60% at 20% 30%, rgba(20, 212, 184, 0.06), transparent 60%),
    radial-gradient(ellipse 60% 80% at 80% 70%, rgba(124, 92, 252, 0.05), transparent 60%),
    radial-gradient(ellipse 50% 50% at 50% 50%, rgba(6, 214, 224, 0.03), transparent 60%);
  animation: meshDrift 20s ease-in-out infinite alternate;
  pointer-events: none;
}

@keyframes meshDrift {
  0%   { background-position: 0% 0%, 100% 100%, 50% 50%; }
  50%  { background-position: 30% 20%, 70% 80%, 40% 60%; }
  100% { background-position: 10% 40%, 90% 60%, 60% 30%; }
}

/* Subtle dot grid overlay */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image: radial-gradient(rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}

/* ── Cursor Glow ── */
.cursor-glow {
  position: fixed;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(20, 212, 184, 0.06) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
  will-change: transform;
  transition: opacity 0.3s;
}

/* ═══════════════════════════════════════════════════════════════
   HEADER / NAVIGATION
   ═══════════════════════════════════════════════════════════════ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  background: rgba(6, 8, 16, 0.75);
  border-bottom: 1px solid var(--glass-border);
}

.nav-container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

.logo-image {
  height: 36px;
  width: auto;
  display: block;
  transition: var(--transition);
  filter: drop-shadow(0 0 8px rgba(20, 212, 184, 0.15));
}

.brand-logo:hover .logo-image {
  filter: drop-shadow(0 0 16px rgba(20, 212, 184, 0.3));
  transform: scale(1.03);
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
  position: relative;
  padding-bottom: 2px;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--gradient-teal);
  transition: width 0.3s ease;
}

.nav-links a:hover { color: var(--text-primary); }
.nav-links a:hover::after { width: 100%; }

/* ── Primary Button ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.6rem;
  font-size: 0.88rem;
  font-weight: 600;
  font-family: var(--font-sans);
  color: var(--bg-primary);
  background: var(--gradient-teal);
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  text-decoration: none;
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 50px;
  background: var(--gradient-teal);
  z-index: -1;
  opacity: 0;
  filter: blur(12px);
  transition: opacity 0.3s;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(20, 212, 184, 0.25);
  color: var(--bg-primary);
}

.btn-primary:hover::before { opacity: 1; }

/* Secondary (outline) button */
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.6rem;
  font-size: 0.88rem;
  font-weight: 600;
  font-family: var(--font-sans);
  color: var(--text-primary);
  background: transparent;
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-secondary:hover {
  border-color: var(--accent-teal);
  color: var(--accent-teal);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(20, 212, 184, 0.1);
}

/* ═══════════════════════════════════════════════════════════════
   GLASS CARD COMPONENT
   ═══════════════════════════════════════════════════════════════ */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.glass-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  padding: 1px;
  background: linear-gradient(135deg, rgba(20, 212, 184, 0), rgba(124, 92, 252, 0));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  transition: background 0.4s ease;
  pointer-events: none;
}

.glass-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), 0 0 40px rgba(20, 212, 184, 0.06);
  border-color: rgba(20, 212, 184, 0.12);
}

.glass-card:hover::before {
  background: linear-gradient(135deg, rgba(20, 212, 184, 0.2), rgba(124, 92, 252, 0.15));
}

/* ═══════════════════════════════════════════════════════════════
   SECTION COMMON STYLES
   ═══════════════════════════════════════════════════════════════ */
section {
  padding: 6rem 2rem;
  max-width: 1240px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.7;
}

.section-eyebrow {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-teal);
  margin-bottom: 0.75rem;
  display: block;
}

/* Editorial italic headline */
.editorial-headline {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 2.2rem;
  color: var(--text-secondary);
  font-weight: 400;
  line-height: 1.3;
}

/* Gradient text utility */
.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ═══════════════════════════════════════════════════════════════
   SCROLL REVEAL ANIMATIONS
   ═══════════════════════════════════════════════════════════════ */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Staggered children */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-stagger.visible > *:nth-child(1) { transition-delay: 0.05s; }
.reveal-stagger.visible > *:nth-child(2) { transition-delay: 0.12s; }
.reveal-stagger.visible > *:nth-child(3) { transition-delay: 0.19s; }
.reveal-stagger.visible > *:nth-child(4) { transition-delay: 0.26s; }
.reveal-stagger.visible > *:nth-child(5) { transition-delay: 0.33s; }
.reveal-stagger.visible > *:nth-child(6) { transition-delay: 0.40s; }

.reveal-stagger.visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* ═══════════════════════════════════════════════════════════════
   HERO SECTION
   ═══════════════════════════════════════════════════════════════ */
.hero-section {
  padding-top: 10rem;
  padding-bottom: 4rem;
  text-align: center;
  position: relative;
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1.2rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--accent-teal);
  background: rgba(20, 212, 184, 0.08);
  border: 1px solid rgba(20, 212, 184, 0.15);
  border-radius: 50px;
  margin-bottom: 2rem;
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
  max-width: 820px;
  margin-left: auto;
  margin-right: auto;
}

.hero-subheadline {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto 2.5rem;
  line-height: 1.75;
}

/* Typed cursor */
.typed-cursor {
  display: inline-block;
  width: 2px;
  height: 1.2em;
  background: var(--accent-teal);
  margin-left: 2px;
  animation: cursorBlink 0.8s step-end infinite;
  vertical-align: text-bottom;
}

@keyframes cursorBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* Hero CTA group */
.hero-cta-group {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

/* Animated Stats Row */
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 3rem;
  margin-top: 3rem;
  flex-wrap: wrap;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 700;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.stat-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
  letter-spacing: 0.03em;
}

/* Hero pillars */
.hero-pillars {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.pillar-tag {
  font-size: 0.82rem;
  color: var(--text-secondary);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.pillar-divider {
  color: var(--text-muted);
  font-size: 0.6rem;
}

/* ═══════════════════════════════════════════════════════════════
   DEMO FORM (Hero inline)
   ═══════════════════════════════════════════════════════════════ */
.demo-form-container {
  max-width: 480px;
  margin: 0 auto 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.input-group {
  position: relative;
}

.input-group input {
  width: 100%;
  padding: 0.9rem 1.2rem;
  font-size: 0.95rem;
  font-family: var(--font-sans);
  color: var(--text-primary);
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  outline: none;
  transition: var(--transition);
}

.input-group input:focus {
  border-color: var(--accent-teal);
  box-shadow: 0 0 0 3px rgba(20, 212, 184, 0.1);
}

.input-group label {
  position: absolute;
  left: 1.2rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.9rem;
  color: var(--text-muted);
  pointer-events: none;
  transition: var(--transition);
}

.input-group input:focus + label,
.input-group input:not(:placeholder-shown) + label {
  top: -8px;
  font-size: 0.72rem;
  color: var(--accent-teal);
  background: var(--bg-primary);
  padding: 0 6px;
}

.hidden { display: none !important; }

.honeypot-wrapper { display: none !important; }

/* Success / Error states */
.success-container {
  text-align: center;
  padding: 2rem;
}

.success-message {
  color: var(--accent-teal);
  font-weight: 500;
}

.error-container {
  text-align: center;
  padding: 0.75rem;
}

.error-message {
  color: #F87171;
  font-size: 0.88rem;
}

/* Checkmark SVG */
.hologram-checkmark { width: 52px; margin: 0 auto 1rem; }
.checkmark-svg { width: 100%; height: 100%; }
.checkmark-circle { stroke: var(--accent-teal); stroke-width: 2; }
.checkmark-check { stroke: var(--accent-teal); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }

/* ═══════════════════════════════════════════════════════════════
   PIPELINE SECTION — Animated Knowledge Graph
   ═══════════════════════════════════════════════════════════════ */
.pipeline-section {
  padding: 5rem 2rem;
  max-width: 1240px;
  margin: 0 auto;
  position: relative;
}

.pipeline-svg-wrapper {
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
}

.pipeline-svg {
  width: 100%;
  height: auto;
}

/* SVG node styling */
.pipeline-node-circle {
  fill: var(--bg-secondary);
  stroke-width: 2;
  transition: var(--transition);
}

.pipeline-node-circle.teal { stroke: var(--accent-teal); }
.pipeline-node-circle.indigo { stroke: var(--accent-indigo); }
.pipeline-node-circle.cyan { stroke: var(--accent-cyan); }

.pipeline-node-label {
  fill: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  text-anchor: middle;
  dominant-baseline: middle;
}

.pipeline-node-sublabel {
  fill: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 9px;
  text-anchor: middle;
}

/* Animated edges */
.pipeline-edge {
  stroke: rgba(20, 212, 184, 0.3);
  stroke-width: 2;
  fill: none;
  stroke-dasharray: 8 4;
  animation: edgeFlow 2s linear infinite;
}

@keyframes edgeFlow {
  to { stroke-dashoffset: -24; }
}

/* Pulsing glow on central node */
.pipeline-center-glow {
  fill: none;
  stroke: var(--accent-teal);
  stroke-width: 1;
  opacity: 0;
  animation: centerPulse 3s ease-in-out infinite;
}

@keyframes centerPulse {
  0%   { r: 45; opacity: 0.4; }
  50%  { r: 65; opacity: 0; }
  100% { r: 45; opacity: 0.4; }
}

/* Floating particles along edges */
.pipeline-particle {
  fill: var(--accent-teal);
  r: 2.5;
  opacity: 0.8;
}

/* Orbiting concept nodes around center */
.orbit-node {
  fill: var(--bg-secondary);
  stroke: rgba(124, 92, 252, 0.5);
  stroke-width: 1.5;
  transition: stroke 0.3s, stroke-width 0.3s;
}

.orbit-node:hover {
  stroke: var(--accent-indigo);
  stroke-width: 2.5;
  cursor: pointer;
}

.orbit-label {
  fill: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 9.5px;
  font-weight: 500;
  text-anchor: middle;
  dominant-baseline: middle;
  pointer-events: none;
}

/* ═══════════════════════════════════════════════════════════════
   DEPLOYMENT MODELS SECTION
   ═══════════════════════════════════════════════════════════════ */
.deployment-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.deploy-card {
  text-align: center;
  padding: 2.5rem 2rem;
}

.deploy-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-size: 1.6rem;
}

.deploy-icon.teal   { background: rgba(20, 212, 184, 0.1); }
.deploy-icon.indigo { background: rgba(124, 92, 252, 0.1); }
.deploy-icon.cyan   { background: rgba(6, 214, 224, 0.1); }

.deploy-card h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.deploy-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.deploy-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: 50px;
  margin-bottom: 1rem;
}

.deploy-badge.popular {
  background: rgba(20, 212, 184, 0.12);
  color: var(--accent-teal);
  border: 1px solid rgba(20, 212, 184, 0.2);
}

/* ═══════════════════════════════════════════════════════════════
   INDUSTRY VERTICALS — Bento Grid
   ═══════════════════════════════════════════════════════════════ */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto auto;
  gap: 1.25rem;
}

.bento-grid .bento-hero {
  grid-column: span 2;
  grid-row: span 1;
}

.bento-grid .bento-wide {
  grid-column: span 3;
}

.bento-card {
  padding: 2rem;
}

.bento-card .card-icon {
  font-size: 1.8rem;
  margin-bottom: 1rem;
  display: inline-block;
}

.bento-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.bento-card .card-stat {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.75rem;
  display: block;
}

.bento-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.bento-card ul {
  list-style: none;
  margin-top: 1rem;
}

.bento-card ul li {
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding: 0.3rem 0;
  padding-left: 1.2rem;
  position: relative;
}

.bento-card ul li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--accent-teal);
  font-weight: 700;
}

/* ═══════════════════════════════════════════════════════════════
   USE CASES SECTION
   ═══════════════════════════════════════════════════════════════ */
.usecases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.usecase-card {
  padding: 2.5rem 2rem;
  position: relative;
}

.usecase-number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.15;
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  line-height: 1;
}

.usecase-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.usecase-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ═══════════════════════════════════════════════════════════════
   AGENTIC WORKFLOWS SECTION
   ═══════════════════════════════════════════════════════════════ */
.workflows-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.workflow-card {
  padding: 2.5rem 2rem;
}

.workflow-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-indigo);
  background: rgba(124, 92, 252, 0.1);
  border: 1px solid rgba(124, 92, 252, 0.2);
  border-radius: 50px;
  margin-bottom: 1rem;
}

.workflow-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.workflow-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

/* Flow diagram */
.workflow-diagram {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.diagram-node {
  padding: 0.45rem 0.9rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-tertiary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
}

.diagram-node.active {
  color: var(--accent-teal);
  border-color: rgba(20, 212, 184, 0.3);
  background: rgba(20, 212, 184, 0.06);
  box-shadow: 0 0 12px rgba(20, 212, 184, 0.08);
}

.diagram-arrow {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ═══════════════════════════════════════════════════════════════
   CALCULATOR SECTION
   ═══════════════════════════════════════════════════════════════ */
.calculator-section {
  padding: 6rem 2rem;
  max-width: 1240px;
  margin: 0 auto;
}

.calculator-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 2rem;
  align-items: start;
}

.calc-controls {
  padding: 2.5rem 2rem;
}

.calc-controls h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 2rem;
}

/* Slider group */
.slider-group {
  margin-bottom: 2rem;
}

.slider-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
  font-size: 0.88rem;
}

.slider-label span:last-child {
  font-weight: 600;
  color: var(--accent-teal);
  font-family: var(--font-display);
}

/* GPU Tier Selector */
.gpu-tier-selector {
  margin-bottom: 2rem;
}

.gpu-tier-selector label {
  display: block;
  font-size: 0.88rem;
  margin-bottom: 0.75rem;
  color: var(--text-secondary);
}

.tier-buttons {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.35rem;
}

.tier-btn {
  padding: 0.5rem 0.2rem;
  font-size: 0.75rem;
  font-weight: 600;
  font-family: var(--font-sans);
  color: var(--text-secondary);
  background: var(--bg-tertiary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  white-space: nowrap;
}

.tier-btn:hover {
  border-color: rgba(20, 212, 184, 0.3);
  color: var(--text-primary);
}

.tier-btn.active {
  color: var(--accent-teal);
  border-color: var(--accent-teal);
  background: rgba(20, 212, 184, 0.08);
  box-shadow: 0 0 12px rgba(20, 212, 184, 0.08);
}

/* Range slider styling */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  background: var(--bg-tertiary);
  border-radius: 4px;
  outline: none;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent-teal);
  border: 3px solid var(--bg-secondary);
  box-shadow: 0 0 10px rgba(20, 212, 184, 0.3);
  cursor: pointer;
  transition: var(--transition);
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.15);
  box-shadow: 0 0 16px rgba(20, 212, 184, 0.5);
}

/* Results panel */
.calc-results {
  padding: 2.5rem 2rem;
}

.calc-results h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 2rem;
}

.results-grid {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.result-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  transition: var(--transition);
}

.result-label {
  font-size: 0.88rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.result-value {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
}

.result-item.savings {
  border-color: rgba(20, 212, 184, 0.2);
  background: rgba(20, 212, 184, 0.04);
}

.result-item.savings .result-value {
  color: var(--accent-teal);
}

/* Cost bar visualisation */
.cost-bar-wrapper {
  margin-top: 1.5rem;
}

.cost-bar-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.cost-bar-label {
  font-size: 0.78rem;
  color: var(--text-secondary);
  width: 120px;
  flex-shrink: 0;
  text-align: right;
}

.cost-bar-track {
  flex: 1;
  height: 10px;
  background: var(--bg-tertiary);
  border-radius: 6px;
  overflow: hidden;
  position: relative;
}

.cost-bar-fill {
  height: 100%;
  border-radius: 6px;
  transition: width 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  min-width: 4px;
}

.cost-bar-fill.public   { background: #F87171; }
.cost-bar-fill.managed  { background: var(--accent-indigo); }
.cost-bar-fill.local    { background: var(--accent-teal); }

.cost-bar-value {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-primary);
  width: 100px;
  flex-shrink: 0;
}

/* Insights paragraph */
.calc-insights {
  margin-top: 1.5rem;
  padding: 1.25rem;
  background: rgba(20, 212, 184, 0.04);
  border: 1px solid rgba(20, 212, 184, 0.1);
  border-radius: var(--radius-md);
}

.calc-insights p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ═══════════════════════════════════════════════════════════════
   FAQ SECTION
   ═══════════════════════════════════════════════════════════════ */
.faq-section {
  padding: 6rem 2rem;
  max-width: 800px;
  margin: 0 auto;
}

.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq-item {
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: rgba(20, 212, 184, 0.15);
}

.faq-trigger {
  width: 100%;
  padding: 1.25rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font-sans);
  color: var(--text-primary);
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
}

.faq-trigger:hover { color: var(--accent-teal); }

.faq-icon {
  font-size: 1.3rem;
  color: var(--text-muted);
  transition: transform 0.3s ease;
}

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

.faq-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-panel p {
  padding: 0 1.5rem 1.25rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ═══════════════════════════════════════════════════════════════
   CTA SECTION
   ═══════════════════════════════════════════════════════════════ */
.cta-section {
  padding: 4rem 2rem 6rem;
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.cta-card {
  padding: 3.5rem;
  text-align: center;
  border: 1px solid rgba(20, 212, 184, 0.12);
  position: relative;
  overflow: hidden;
}

.cta-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(20, 212, 184, 0.04), transparent 70%);
  pointer-events: none;
}

.cta-card h2 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.cta-card p {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* ═══════════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════════ */
.footer {
  border-top: 1px solid var(--glass-border);
  padding: 4rem 2rem 2rem;
  background: var(--bg-secondary);
}

.footer-container {
  max-width: 1240px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 3rem;
  flex-wrap: wrap;
}

.footer-left {
  max-width: 320px;
}

.logo-image-footer {
  height: 44px;
  width: auto;
  display: block;
  margin-bottom: 1.25rem;
  filter: drop-shadow(0 0 6px rgba(20, 212, 184, 0.1));
}

.footer-left p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  line-height: 1.6;
}

.copyright {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 1rem;
}

.footer-links {
  display: flex;
  gap: 4rem;
  flex-wrap: wrap;
}

.footer-col h4 {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
  letter-spacing: 0.03em;
}

.footer-col a {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.6rem;
}

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

/* ═══════════════════════════════════════════════════════════════
   MODAL
   ═══════════════════════════════════════════════════════════════ */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  max-width: 560px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 1.5rem;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
  line-height: 1;
}

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

.modal-body h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.modal-body h4 {
  font-size: 0.95rem;
  color: var(--accent-teal);
  margin: 1.25rem 0 0.5rem;
}

.modal-body p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .demo-btn { display: none; }

  .hero-headline { font-size: 2.2rem; }
  .hero-stats { gap: 1.5rem; }
  .stat-number { font-size: 1.8rem; }

  .bento-grid {
    grid-template-columns: 1fr;
  }
  .bento-grid .bento-hero { grid-column: span 1; }

  .deployment-grid { grid-template-columns: 1fr; }
  .usecases-grid { grid-template-columns: 1fr; }
  .workflows-grid { grid-template-columns: 1fr; }
  .calculator-grid { grid-template-columns: 1fr; }

  .footer-container { flex-direction: column; }
  .footer-links { gap: 2rem; }

  section { padding: 4rem 1.25rem; }
}

@media (max-width: 600px) {
  .hero-section { padding-top: 7rem; }
  .hero-headline { font-size: 1.8rem; }
  .section-title { font-size: 1.8rem; }
  .hero-stats { flex-direction: column; gap: 1rem; }
  .hero-pillars { flex-direction: column; gap: 0.5rem; }
  .pillar-divider { display: none; }
  .hero-cta-group { flex-direction: column; align-items: center; }
  .cost-bar-label { width: 80px; font-size: 0.7rem; }
}