/* ========================================
   EDIFUNCTIONS — Design System
   Enterprise EDI Integration Platform
   ======================================== */

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ---------- CSS Variables ---------- */
:root {
  /* Primary Palette */
  --primary-50: #eff6ff;
  --primary-100: #dbeafe;
  --primary-200: #bfdbfe;
  --primary-300: #93c5fd;
  --primary-400: #60a5fa;
  --primary-500: #3b82f6;
  --primary-600: #2563eb;
  --primary-700: #1d4ed8;
  --primary-800: #1e40af;
  --primary-900: #1e3a8a;
  --primary-950: #0f1d3d;

  /* Neutral Palette */
  --neutral-50: #f8fafc;
  --neutral-100: #f1f5f9;
  --neutral-200: #e2e8f0;
  --neutral-300: #cbd5e1;
  --neutral-400: #94a3b8;
  --neutral-500: #64748b;
  --neutral-600: #475569;
  --neutral-700: #334155;
  --neutral-800: #1e293b;
  --neutral-900: #0f172a;

  /* Accent */
  --accent-cyan: #06b6d4;
  --accent-emerald: #10b981;
  --accent-violet: #8b5cf6;
  --accent-amber: #f59e0b;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-800) 100%);
  --gradient-hero: linear-gradient(135deg, #0f172a 0%, #1e3a8a 50%, #1d4ed8 100%);
  --gradient-card: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
  --gradient-accent: linear-gradient(135deg, var(--primary-500) 0%, var(--accent-cyan) 100%);
  --gradient-dark: linear-gradient(180deg, var(--neutral-900) 0%, var(--primary-950) 100%);

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
  --shadow-glow: 0 0 40px rgba(59,130,246,0.3);
  --shadow-card: 0 4px 24px rgba(0,0,0,0.08);

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Layout */
  --max-width: 1280px;
  --header-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--neutral-700);
  background: var(--neutral-50);
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color var(--transition-fast); }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5, h6 {
  color: var(--neutral-900);
  line-height: 1.2;
  font-weight: 700;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(1.8rem, 4vw, 2.75rem); letter-spacing: -0.02em; }
h3 { font-size: clamp(1.3rem, 3vw, 1.75rem); }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

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

.subtitle {
  font-size: 1.15rem;
  color: var(--neutral-500);
  max-width: 640px;
  line-height: 1.8;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--primary-600);
  margin-bottom: var(--space-md);
}

.section-label::before {
  content: '';
  width: 32px;
  height: 2px;
  background: var(--gradient-accent);
  border-radius: 2px;
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.section {
  padding: var(--space-4xl) 0;
}

.section-dark {
  background: var(--gradient-dark);
  color: #fff;
}

.section-dark h2, .section-dark h3, .section-dark h4 { color: #fff; }
.section-dark .subtitle { color: var(--neutral-300); }
.section-dark .section-label { color: var(--primary-300); }

.section-alt {
  background: var(--neutral-100);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-header .subtitle {
  margin: var(--space-md) auto 0;
}

/* ---------- Grid Systems ---------- */
.grid { display: grid; gap: var(--space-xl); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }
.grid-6 { grid-template-columns: repeat(6, 1fr); }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

/* ---------- Header / Navigation ---------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 1000;
  transition: all var(--transition-base);
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(255,255,255,0.95);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--neutral-900);
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--gradient-accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 900;
  font-size: 1.1rem;
}

.nav { display: flex; align-items: center; gap: var(--space-xs); }

.nav-link {
  padding: 8px 14px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--neutral-600);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--primary-600);
  background: var(--primary-50);
}

.nav-dropdown {
  position: relative;
}

.nav-dropdown-content {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 220px;
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--neutral-200);
  padding: var(--space-sm);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  z-index: 100;
}

.nav-dropdown:hover .nav-dropdown-content {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown-content a {
  display: block;
  padding: 10px 14px;
  font-size: 0.88rem;
  color: var(--neutral-600);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-dropdown-content a:hover {
  background: var(--primary-50);
  color: var(--primary-600);
}

.nav-cta {
  margin-left: var(--space-sm);
}

/* Mobile Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  z-index: 1001;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--neutral-700);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-accent);
  color: #fff;
  box-shadow: 0 4px 14px rgba(59,130,246,0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(59,130,246,0.5);
}

.btn-secondary {
  background: #fff;
  color: var(--primary-600);
  border: 2px solid var(--primary-200);
}

.btn-secondary:hover {
  background: var(--primary-50);
  border-color: var(--primary-400);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.3);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.6);
  transform: translateY(-2px);
}

.btn-dark {
  background: var(--neutral-900);
  color: #fff;
}

.btn-dark:hover {
  background: var(--neutral-800);
  transform: translateY(-2px);
}

.btn-sm { padding: 8px 20px; font-size: 0.85rem; }
.btn-lg { padding: 16px 36px; font-size: 1rem; }
.btn-icon { width: 44px; height: 44px; padding: 0; border-radius: var(--radius-md); }

/* ---------- Hero Section ---------- */
.hero {
  min-height: 100vh;
  padding-top: var(--header-height);
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(6,182,212,0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(139,92,246,0.1) 0%, transparent 70%);
  pointer-events: none;
}

.hero .container { position: relative; z-index: 1; }

.hero-content {
  max-width: 720px;
  padding: var(--space-4xl) 0;
}

.hero h1 {
  color: #fff;
  margin-bottom: var(--space-lg);
  font-weight: 900;
}

.hero .subtitle {
  color: rgba(255,255,255,0.75);
  font-size: 1.2rem;
  margin-bottom: var(--space-2xl);
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-bottom: var(--space-3xl);
}

.hero-badges {
  display: flex;
  gap: var(--space-xl);
  flex-wrap: wrap;
}

.hero-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.7);
  font-size: 0.88rem;
  font-weight: 500;
}

.hero-badge svg { width: 18px; height: 18px; color: var(--accent-emerald); }

.hero-visual {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 45%;
  height: 70%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Page Hero (for sub-pages) */
.page-hero {
  padding: calc(var(--header-height) + var(--space-4xl)) 0 var(--space-4xl);
  background: var(--gradient-hero);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(6,182,212,0.12) 0%, transparent 70%);
  pointer-events: none;
}

.page-hero h1 { color: #fff; margin-bottom: var(--space-md); }
.page-hero .subtitle { color: rgba(255,255,255,0.7); margin: 0 auto; font-size: 1.15rem; }

/* ---------- Cards ---------- */
.card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  border: 1px solid var(--neutral-200);
  transition: all var(--transition-base);
  position: relative;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-200);
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-lg);
  background: var(--primary-50);
  color: var(--primary-600);
}

.card-dark {
  background: rgba(255,255,255,0.05);
  border-color: rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
}

.card-dark:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.2);
}

.card-dark h3, .card-dark h4 { color: #fff; }
.card-dark p { color: var(--neutral-300); }

.card-dark .card-icon {
  background: rgba(59,130,246,0.2);
  color: var(--primary-300);
}

.card h4 { margin-bottom: var(--space-sm); }
.card p { color: var(--neutral-500); font-size: 0.95rem; }

/* Feature Card */
.feature-card {
  text-align: center;
  padding: var(--space-2xl);
}

.feature-card .card-icon {
  margin: 0 auto var(--space-lg);
}

/* Pricing Card */
.pricing-card {
  text-align: center;
  position: relative;
  overflow: hidden;
}

.pricing-card.featured {
  border: 2px solid var(--primary-500);
  box-shadow: var(--shadow-glow);
}

.pricing-card.featured::before {
  content: 'Most Popular';
  position: absolute;
  top: 16px;
  right: -32px;
  background: var(--gradient-accent);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 40px;
  transform: rotate(45deg);
}

.pricing-amount {
  font-size: 3rem;
  font-weight: 800;
  color: var(--neutral-900);
  line-height: 1;
}

.pricing-amount span {
  font-size: 1rem;
  font-weight: 500;
  color: var(--neutral-400);
}

.pricing-features {
  text-align: left;
  margin: var(--space-xl) 0;
}

.pricing-features li {
  padding: 8px 0;
  font-size: 0.92rem;
  color: var(--neutral-600);
  display: flex;
  align-items: start;
  gap: 10px;
}

.pricing-features li::before {
  content: '✓';
  color: var(--accent-emerald);
  font-weight: 700;
  flex-shrink: 0;
}

/* ---------- Tags / Badges ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  background: var(--primary-50);
  color: var(--primary-700);
  border: 1px solid var(--primary-100);
}

.tag-dark {
  background: rgba(59,130,246,0.15);
  color: var(--primary-300);
  border-color: rgba(59,130,246,0.2);
}

.tag-outline {
  background: transparent;
  color: var(--neutral-500);
  border: 1px solid var(--neutral-300);
}

/* ---------- Stats ---------- */
.stat {
  text-align: center;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary-600);
  line-height: 1;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.88rem;
  color: var(--neutral-500);
  font-weight: 500;
}

/* ---------- Technology Grid ---------- */
.tech-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.tech-tag {
  padding: 8px 16px;
  font-size: 0.85rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  background: var(--neutral-100);
  color: var(--neutral-700);
  border: 1px solid var(--neutral-200);
  transition: all var(--transition-fast);
}

.tech-tag:hover {
  background: var(--primary-50);
  border-color: var(--primary-200);
  color: var(--primary-700);
}

/* ---------- Accordion / FAQ ---------- */
.accordion-item {
  background: #fff;
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  overflow: hidden;
  transition: all var(--transition-base);
}

.accordion-item:hover {
  border-color: var(--primary-200);
}

.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) var(--space-xl);
  cursor: pointer;
  font-weight: 600;
  color: var(--neutral-800);
  font-size: 1rem;
  transition: color var(--transition-fast);
}

.accordion-header:hover { color: var(--primary-600); }

.accordion-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--neutral-100);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--neutral-500);
  transition: all var(--transition-base);
  flex-shrink: 0;
}

.accordion-item.active .accordion-icon {
  background: var(--primary-500);
  color: #fff;
  transform: rotate(45deg);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.accordion-body-inner {
  padding: 0 var(--space-xl) var(--space-xl);
  color: var(--neutral-500);
  line-height: 1.8;
  font-size: 0.95rem;
}

/* ---------- Table ---------- */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--neutral-200);
}

table {
  width: 100%;
  border-collapse: collapse;
}

thead {
  background: var(--neutral-100);
}

th {
  padding: 14px 20px;
  text-align: left;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--neutral-600);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

td {
  padding: 14px 20px;
  border-top: 1px solid var(--neutral-200);
  font-size: 0.92rem;
  color: var(--neutral-700);
}

tbody tr:hover { background: var(--primary-50); }

/* ---------- Form Elements ---------- */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--neutral-700);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 12px 16px;
  font-size: 0.95rem;
  font-family: var(--font-sans);
  border: 1px solid var(--neutral-300);
  border-radius: var(--radius-md);
  background: #fff;
  color: var(--neutral-800);
  transition: all var(--transition-fast);
  outline: none;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}

.form-textarea { resize: vertical; min-height: 120px; }

/* ---------- CTA Banner ---------- */
.cta-banner {
  background: var(--gradient-accent);
  border-radius: var(--radius-xl);
  padding: var(--space-4xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, transparent 70%);
  pointer-events: none;
}

.cta-banner h2 { color: #fff; margin-bottom: var(--space-md); }
.cta-banner p { color: rgba(255,255,255,0.85); margin-bottom: var(--space-xl); max-width: 550px; margin-left: auto; margin-right: auto; }

.cta-banner .btn-primary {
  background: #fff;
  color: var(--primary-700);
  box-shadow: 0 4px 14px rgba(0,0,0,0.15);
}

.cta-banner .btn-primary:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

/* ---------- Footer ---------- */
.footer {
  background: var(--neutral-900);
  color: var(--neutral-400);
  padding: var(--space-4xl) 0 var(--space-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(4, 1fr);
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

.footer-brand p {
  margin-top: var(--space-md);
  font-size: 0.92rem;
  line-height: 1.7;
}

.footer-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--neutral-200);
  margin-bottom: var(--space-lg);
}

.footer-links li { margin-bottom: 10px; }

.footer-links a {
  font-size: 0.9rem;
  color: var(--neutral-400);
  transition: color var(--transition-fast);
}

.footer-links a:hover { color: var(--primary-400); }

.footer-bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
}

.footer .logo { color: #fff; }

/* ---------- Scroll Animations ---------- */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in {
  opacity: 0;
  transition: opacity 0.6s ease;
}

.fade-in.visible { opacity: 1; }

/* Stagger children */
.stagger-children > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.stagger-children.visible > *:nth-child(1) { transition-delay: 0ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(2) { transition-delay: 80ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(3) { transition-delay: 160ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(4) { transition-delay: 240ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(5) { transition-delay: 320ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(6) { transition-delay: 400ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(7) { transition-delay: 480ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(8) { transition-delay: 560ms; opacity: 1; transform: translateY(0); }

/* ---------- Utility ---------- */
.text-center { text-align: center; }
.text-left { text-align: left; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mx-auto { margin-left: auto; margin-right: auto; }
.max-w-md { max-width: 640px; }
.max-w-lg { max-width: 800px; }
.max-w-xl { max-width: 960px; }

/* Code blocks */
.code-block {
  background: var(--neutral-900);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--neutral-300);
  border: 1px solid rgba(255,255,255,0.1);
}

.code-block .keyword { color: var(--accent-violet); }
.code-block .string { color: var(--accent-emerald); }
.code-block .comment { color: var(--neutral-500); }

/* Flowchart / Steps */
.steps {
  position: relative;
}

.step {
  display: flex;
  gap: var(--space-xl);
  padding-bottom: var(--space-2xl);
  position: relative;
}

.step-number {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--gradient-accent);
  color: #fff;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  position: relative;
  z-index: 1;
}

.step:not(:last-child)::before {
  content: '';
  position: absolute;
  left: 23px;
  top: 48px;
  bottom: 0;
  width: 2px;
  background: var(--primary-200);
}

.step-content h4 { margin-bottom: var(--space-sm); }
.step-content p { color: var(--neutral-500); }

/* Pill tabs */
.pill-tabs {
  display: flex;
  gap: 4px;
  padding: 4px;
  background: var(--neutral-100);
  border-radius: var(--radius-full);
  width: fit-content;
}

.pill-tab {
  padding: 10px 24px;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  color: var(--neutral-600);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pill-tab.active {
  background: #fff;
  color: var(--primary-600);
  box-shadow: var(--shadow-sm);
}

/* Conversion arrow */
.conversion-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}

.arrow-line {
  width: 2px;
  height: 60px;
  background: var(--gradient-accent);
}

.arrow-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient-accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

/* Two-col layout */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.two-col-text { max-width: 520px; }
.two-col-text h2 { margin-bottom: var(--space-md); }
.two-col-text p { margin-bottom: var(--space-xl); }

/* List with check marks */
.check-list li {
  display: flex;
  align-items: start;
  gap: 12px;
  padding: 8px 0;
  font-size: 0.95rem;
  color: var(--neutral-600);
}

.check-list li::before {
  content: '✓';
  color: var(--accent-emerald);
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
}

/* Industry badges */
.industry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-md);
}

.industry-badge {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--neutral-200);
  font-weight: 500;
  font-size: 0.92rem;
  transition: all var(--transition-fast);
}

.industry-badge:hover {
  border-color: var(--primary-300);
  box-shadow: var(--shadow-md);
}

.industry-badge-icon {
  font-size: 1.5rem;
}

/* Scroll to top */
.scroll-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  background: var(--primary-600);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  z-index: 999;
  cursor: pointer;
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-5 { grid-template-columns: repeat(3, 1fr); }
  .grid-6 { grid-template-columns: repeat(3, 1fr); }
  .two-col { grid-template-columns: 1fr; gap: var(--space-2xl); }
  .footer-grid { grid-template-columns: repeat(3, 1fr); }
  .hero-visual { display: none; }
  .hero-content { max-width: 100%; }
}

@media (max-width: 768px) {
  :root { --header-height: 64px; }

  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    padding: calc(var(--header-height) + var(--space-xl)) var(--space-xl) var(--space-xl);
    transition: right var(--transition-base);
    box-shadow: -4px 0 24px rgba(0,0,0,0.1);
    overflow-y: auto;
    gap: 0;
  }

  .nav.open { right: 0; }

  .nav-link {
    width: 100%;
    padding: 12px 0;
    font-size: 1rem;
    border-bottom: 1px solid var(--neutral-100);
  }

  .nav-dropdown-content {
    position: static;
    transform: none;
    box-shadow: none;
    border: none;
    padding-left: var(--space-md);
    opacity: 1;
    visibility: visible;
  }

  .nav-cta { margin-left: 0; margin-top: var(--space-md); width: 100%; text-align: center; }

  .nav-toggle { display: flex; }

  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }
  .grid-5 { grid-template-columns: repeat(2, 1fr); }
  .grid-6 { grid-template-columns: repeat(2, 1fr); }

  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; gap: var(--space-md); text-align: center; }

  .hero { min-height: auto; }
  .hero-content { padding: var(--space-3xl) 0; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }

  .cta-banner { padding: var(--space-2xl); }

  .industry-grid { grid-template-columns: 1fr 1fr; }

  .section { padding: var(--space-3xl) 0; }
}

@media (max-width: 480px) {
  .grid-5 { grid-template-columns: 1fr; }
  .grid-6 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .industry-grid { grid-template-columns: 1fr; }
  .hero-badges { flex-direction: column; }
}

/* ---------- Form Toast Notifications ---------- */
.form-toast {
  padding: 14px 20px;
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  font-weight: 500;
  margin-bottom: var(--space-lg);
  animation: toastSlideIn 0.3s ease;
}

.form-toast-success {
  background: rgba(16, 185, 129, 0.1);
  color: #065f46;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.form-toast-error {
  background: rgba(239, 68, 68, 0.1);
  color: #991b1b;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

@keyframes toastSlideIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- Cloudflare Turnstile Responsive ---------- */
.cf-turnstile {
  margin-bottom: var(--space-sm);
}

@media (max-width: 380px) {
  .cf-turnstile {
    transform: scale(0.85);
    transform-origin: left top;
  }
}