/* ============================================
   eBrains Digital — Main Stylesheet
   ============================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  --bg-primary: #050510;
  --bg-surface: #0a0a1a;
  --bg-surface-hover: #12122a;
  --bg-surface-light: #1a1a2e;

  --border: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);

  --primary: #00d4ff;
  --primary-rgb: 0, 212, 255;
  --secondary: #8b5cf6;
  --secondary-rgb: 139, 92, 246;
  --accent: #06b6d4;

  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --gradient: linear-gradient(135deg, var(--primary), var(--secondary));
  --gradient-text: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --nav-height: 100px;
  --container: 1200px;
  --section-padding: 120px;
  --radius: 12px;
  --radius-lg: 20px;

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-surface-light);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* ---------- Utilities ---------- */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

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

/* ---------- Loading Screen ---------- */
#loading-screen {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

#loading-screen.loaded {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.loader-brain {
  animation: pulse-glow 2s ease-in-out infinite;
}

.loader-node {
  animation: node-blink 1.5s ease-in-out infinite alternate;
}

.loader-node:nth-child(2) {
  animation-delay: 0.2s;
}

.loader-node:nth-child(3) {
  animation-delay: 0.4s;
}

.loader-node:nth-child(4) {
  animation-delay: 0.6s;
}

.loader-node:nth-child(5) {
  animation-delay: 0.8s;
}

.loader-text {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
}

@keyframes pulse-glow {

  0%,
  100% {
    transform: scale(1);
    opacity: 0.8;
  }

  50% {
    transform: scale(1.1);
    opacity: 1;
  }
}

@keyframes node-blink {
  0% {
    opacity: 0.4;
  }

  100% {
    opacity: 1;
  }
}

/* ---------- Navigation ---------- */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  transition: var(--transition);
  background: transparent;
}

#navbar.scrolled {
  background: rgba(5, 5, 16, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  z-index: 10;
}

.logo-icon {
  display: flex;
  align-items: center;
}

.logo-img {
  height: 90px;
  width: auto;
  display: block;
}

.logo-highlight {
  color: var(--primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 4px;
}

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

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

.dropdown-menu {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: rgba(10, 10, 26, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px;
  min-width: 260px;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

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

.dropdown-menu a {
  display: block;
  padding: 10px 16px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  border-radius: 8px;
  transition: var(--transition);
}

.dropdown-menu a:hover {
  color: var(--text-primary);
  background: var(--bg-surface-hover);
}

/* Nav Actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  z-index: 10;
}

.mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.mobile-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font);
  font-weight: 600;
  border-radius: 10px;
  transition: var(--transition);
  white-space: nowrap;
  cursor: pointer;
  border: none;
}

.btn-sm {
  padding: 8px 20px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1rem;
}

.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 4px 20px rgba(var(--primary-rgb), 0.3);
}

.btn-primary:hover {
  box-shadow: 0 6px 30px rgba(var(--primary-rgb), 0.45);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-hover);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--text-muted);
}

/* ---------- Hero Section ---------- */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(100px);
  z-index: 0;
}

.hero-glow-1 {
  width: 600px;
  height: 600px;
  background: rgba(var(--primary-rgb), 0.08);
  top: 10%;
  left: 20%;
}

.hero-glow-2 {
  width: 500px;
  height: 500px;
  background: rgba(var(--secondary-rgb), 0.06);
  bottom: 10%;
  right: 15%;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 860px;
  padding: 0 24px;
  padding-top: var(--nav-height);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  border-radius: 50px;
  background: rgba(var(--primary-rgb), 0.08);
  border: 1px solid rgba(var(--primary-rgb), 0.2);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--primary);
  margin-bottom: 28px;
  letter-spacing: 0.02em;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  animation: dot-pulse 2s ease-in-out infinite;
}

@keyframes dot-pulse {

  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.5;
    transform: scale(0.8);
  }
}

#hero h1 {
  font-size: clamp(2.5rem, 5.5vw, 4.2rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 680px;
  margin: 0 auto 40px;
}

.hero-ctas {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* Hero Animations */
.animate-in {
  opacity: 0;
  transform: translateY(30px);
}

.animate-in.visible {
  animation: fadeInUp 0.8s ease forwards;
}

.animate-in:nth-child(2) {
  animation-delay: 0.15s;
}

.animate-in:nth-child(3) {
  animation-delay: 0.3s;
}

.animate-in:nth-child(4) {
  animation-delay: 0.45s;
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 2;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--primary), transparent);
  animation: scroll-pulse 2s ease-in-out infinite;
}

@keyframes scroll-pulse {

  0%,
  100% {
    opacity: 0.3;
    transform: scaleY(0.6);
  }

  50% {
    opacity: 1;
    transform: scaleY(1);
  }
}

.scroll-indicator span {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ---------- Stats Bar ---------- */
#stats-bar {
  position: relative;
  padding: 48px 0;
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  text-align: center;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-suffix {
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
  font-weight: 500;
}

/* ---------- Section Common ---------- */
section {
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 16px auto 0;
  line-height: 1.7;
}

.section-transition {
  text-align: center;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--primary);
  margin-top: 48px;
}

/* ---------- Problems Section ---------- */
#problems {
  padding: var(--section-padding) 0;
}

.problems-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.problem-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: var(--transition);
}

.problem-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-surface-hover);
  transform: translateY(-4px);
}

.problem-icon {
  margin-bottom: 20px;
}

.problem-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.problem-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ---------- Services Section ---------- */
#services {
  padding: var(--section-padding) 0;
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.service-card {
  position: relative;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

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

.service-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.service-card:hover::before {
  opacity: 1;
}

.service-tier {
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--primary);
  background: rgba(var(--primary-rgb), 0.1);
  padding: 4px 10px;
  border-radius: 50px;
}

.service-icon-wrap {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(var(--primary-rgb), 0.06);
  border-radius: 12px;
  margin-bottom: 20px;
}

.service-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.service-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.65;
  flex: 1;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  margin-top: 16px;
  transition: var(--transition);
}

.service-card:hover .service-link {
  gap: 10px;
}

/* FCAIO Banner */
.fcaio-banner {
  margin-top: 40px;
  background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.06), rgba(var(--secondary-rgb), 0.06));
  border: 1px solid rgba(var(--primary-rgb), 0.15);
  border-radius: var(--radius-lg);
  padding: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.fcaio-content {
  flex: 1;
}

.fcaio-content h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.fcaio-content p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 24px;
  max-width: 600px;
}

.fcaio-price {
  text-align: center;
  padding: 24px 32px;
  background: var(--bg-primary);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.price-from {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}

.price-value {
  display: block;
  font-size: 2.2rem;
  font-weight: 800;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.price-period {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ---------- Process Section ---------- */
#process {
  padding: var(--section-padding) 0;
}

.process-steps {
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.process-step {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  padding: 32px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.process-step:hover {
  border-color: var(--border-hover);
  background: var(--bg-surface-hover);
}

.step-number {
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  flex-shrink: 0;
}

.step-content h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
}

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

.step-duration {
  flex-shrink: 0;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary);
  background: rgba(var(--primary-rgb), 0.1);
  padding: 6px 14px;
  border-radius: 50px;
  margin-top: 4px;
}

.process-connector {
  width: 2px;
  height: 32px;
  background: linear-gradient(to bottom, rgba(var(--primary-rgb), 0.3), rgba(var(--secondary-rgb), 0.3));
  margin: 0 auto;
}

/* ---------- Why Us Section ---------- */
#why-us {
  padding: var(--section-padding) 0;
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.differentiators-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.diff-card {
  padding: 32px 28px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.diff-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
}


.diff-number {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.diff-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}

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

/* ---------- Social Proof Section ---------- */
#proof {
  padding: var(--section-padding) 0;
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.proof-card {
  text-align: center;
  padding: 36px 24px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.proof-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
}

.proof-metric {
  font-size: 2.2rem;
  font-weight: 800;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}

.proof-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

.proof-note {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 32px;
  font-style: italic;
}

/* ---------- CTA Section ---------- */
#cta-section {
  position: relative;
  padding: var(--section-padding) 0;
  overflow: hidden;
}

#cta-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.cta-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.cta-content p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  line-height: 1.7;
  margin-bottom: 36px;
}

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

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand {
  text-align: center;
}

.footer-brand .nav-logo {
  display: inline-block;
  margin-bottom: 16px;
}

.footer-logo-img {
  height: 100px;
  width: auto;
}

.footer-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 280px;
  margin: 0 auto;
}

.footer-col h4 {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.footer-col a {
  display: block;
  font-size: 0.9rem;
  color: var(--text-muted);
  padding: 5px 0;
  transition: var(--transition);
}

.footer-col a:hover {
  color: var(--text-primary);
}

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 12px;
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--bg-surface-hover);
  color: var(--text-muted);
  transition: var(--transition);
}

.footer-social a:hover {
  color: var(--primary);
  background: rgba(var(--primary-rgb), 0.1);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-legal {
  display: flex;
  gap: 24px;
}

.footer-legal a {
  color: var(--text-muted);
  transition: var(--transition);
}

.footer-legal a:hover {
  color: var(--text-primary);
}

/* ---------- Reveal Animations ---------- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.reveal:nth-child(2) {
  transition-delay: 0.1s;
}

.reveal:nth-child(3) {
  transition-delay: 0.2s;
}

.reveal:nth-child(4) {
  transition-delay: 0.3s;
}

.reveal:nth-child(5) {
  transition-delay: 0.4s;
}

.reveal:nth-child(6) {
  transition-delay: 0.5s;
}

.reveal:nth-child(7) {
  transition-delay: 0.6s;
}

.reveal:nth-child(8) {
  transition-delay: 0.7s;
}

.reveal:nth-child(9) {
  transition-delay: 0.8s;
}

/* ---------- Service Cards — CRT TV Turn-On Effect ---------- */
.services-grid .service-card.reveal {
  opacity: 0;
  transform: scaleY(0.005) scaleX(0);
  transform-origin: center center;
}

.services-grid .service-card.reveal.visible {
  animation: tv-turn-on 1.2s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

@keyframes tv-turn-on {
  0% {
    opacity: 0;
    transform: scaleY(0.005) scaleX(0);
    filter: brightness(1);
  }

  5% {
    opacity: 1;
    transform: scaleY(0.005) scaleX(0.3);
    filter: brightness(50);
    box-shadow: 0 0 60px 15px rgba(0, 212, 255, 0.5);
  }

  20% {
    opacity: 1;
    transform: scaleY(0.005) scaleX(1);
    filter: brightness(15);
    box-shadow: 0 0 30px 5px rgba(0, 212, 255, 0.3);
  }

  50% {
    opacity: 1;
    transform: scaleY(1.04) scaleX(1);
    filter: brightness(1.5);
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.15);
  }

  70% {
    transform: scaleY(0.98) scaleX(1);
    filter: brightness(1.1);
    box-shadow: none;
  }

  85% {
    transform: scaleY(1.01) scaleX(1);
    filter: brightness(1);
  }

  100% {
    opacity: 1;
    transform: scaleY(1) scaleX(1);
    filter: brightness(1);
    box-shadow: none;
  }
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  :root {
    --section-padding: 80px;
  }

  .problems-grid,
  .services-grid,
  .differentiators-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .proof-grid {
    grid-template-columns: repeat(2, 1fr);
  }


  .fcaio-banner {
    flex-direction: column;
    text-align: center;
    padding: 36px;
  }

  .fcaio-content p {
    margin-left: auto;
    margin-right: auto;
  }

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

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

  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 280px;
    background: rgba(5, 5, 16, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: flex-start;
    padding: 100px 32px 32px;
    gap: 8px;
    transform: translateX(100%);
    transition: var(--transition);
    border-left: 1px solid var(--border);
    z-index: 5;
  }

  .nav-links.open {
    transform: translateX(0);
  }

  .nav-link {
    font-size: 1rem;
    padding: 8px 0;
  }

  .dropdown-menu {
    position: static;
    transform: none;
    background: none;
    border: none;
    backdrop-filter: none;
    padding: 0 0 0 16px;
    opacity: 1;
    visibility: visible;
    min-width: auto;
  }

  .mobile-toggle {
    display: flex;
  }

  .nav-actions .btn {
    display: none;
  }

  .problems-grid,
  .services-grid,
  .differentiators-grid,
  .proof-grid,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .process-step {
    flex-direction: column;
    gap: 16px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .hero-ctas {
    flex-direction: column;
    width: 100%;
  }

  .hero-ctas .btn {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .stat-number {
    font-size: 2rem;
  }
}