/* ===== AIVN — Design System ===== */
:root {
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-card: #151d2e;
  --bg-card-hover: #1a2438;
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(99, 179, 237, 0.3);

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

  --accent: #38bdf8;
  --accent-light: #7dd3fc;
  --accent-dark: #0ea5e9;
  --accent-glow: rgba(56, 189, 248, 0.25);
  --purple: #a78bfa;
  --gradient: linear-gradient(135deg, #38bdf8 0%, #a78bfa 50%, #38bdf8 100%);

  --font-sans: 'Be Vietnam Pro', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 40px var(--accent-glow);

  --header-height: 72px;
  --container: 1200px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

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

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

ul { list-style: none; }

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

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Cursor Glow ===== */
.cursor-glow {
  position: fixed;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: opacity 0.4s;
}

body:hover .cursor-glow { opacity: 1; }

/* ===== Typography ===== */
.gradient-text {
  background: var(--gradient);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 4s linear infinite;
}

@keyframes shimmer {
  0% { background-position: 0% center; }
  100% { background-position: 200% center; }
}

.section-tag {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1.0625rem;
  max-width: 560px;
  margin-top: 16px;
}

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

.section-header .section-desc {
  margin-left: auto;
  margin-right: auto;
}

.section {
  padding: 100px 0;
  position: relative;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary {
  background: var(--gradient);
  background-size: 200% auto;
  color: var(--bg-primary);
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
  background-position: right center;
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

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

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(56, 189, 248, 0.05);
}

.btn-lg { padding: 16px 32px; font-size: 1rem; }
.btn-full { width: 100%; justify-content: center; }

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  transition: var(--transition);
}

.header.scrolled {
  background: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
}

.logo-icon {
  width: 36px;
  height: 36px;
  color: var(--accent);
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  padding: 8px 16px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

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

.nav-cta {
  background: rgba(56, 189, 248, 0.1) !important;
  color: var(--accent) !important;
  border: 1px solid rgba(56, 189, 248, 0.3) !important;
}

.nav-cta:hover {
  background: rgba(56, 189, 248, 0.2) !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 48px;
  padding: calc(var(--header-height) + 48px) 24px 80px;
  max-width: var(--container);
  margin: 0 auto;
  position: relative;
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: -1;
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(56, 189, 248, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 189, 248, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black, transparent);
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: float 8s ease-in-out infinite;
}

.orb-1 {
  width: 500px;
  height: 500px;
  background: rgba(56, 189, 248, 0.15);
  top: -10%;
  right: -5%;
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: rgba(167, 139, 250, 0.12);
  bottom: 10%;
  left: -10%;
  animation-delay: -3s;
}

.orb-3 {
  width: 300px;
  height: 300px;
  background: rgba(14, 165, 233, 0.1);
  top: 40%;
  left: 30%;
  animation-delay: -5s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(20px, -20px) scale(1.05); }
  66% { transform: translate(-15px, 15px) scale(0.95); }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.2);
  border-radius: 100px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--accent-light);
  margin-bottom: 24px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s ease infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero-title {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero-desc {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin-bottom: 32px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
}

.stat-suffix {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  display: block;
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.stat-divider {
  width: 1px;
  height: 48px;
  background: var(--border);
}

/* Code Window */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.code-window {
  width: 100%;
  max-width: 440px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow), var(--shadow-glow);
  animation: floatCode 6s ease-in-out infinite;
}

@keyframes floatCode {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.code-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid var(--border);
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot.red { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }

.code-title {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.code-body {
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.8;
  overflow-x: auto;
}

.code-body .kw { color: #c678dd; }
.code-body .cls { color: #e5c07b; }
.code-body .fn { color: #61afef; }
.code-body .var { color: #e06c75; }
.code-body .str { color: #98c379; }
.code-body .num { color: #d19a66; }
.code-body .bool { color: #56b6c2; }

/* ===== About ===== */
.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

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

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

.about-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(56, 189, 248, 0.1);
  border-radius: var(--radius-md);
  color: var(--accent);
  margin-bottom: 20px;
}

.about-icon svg { width: 24px; height: 24px; }

.about-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.about-card p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.7;
}

/* ===== Services ===== */
.services { background: var(--bg-secondary); }

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

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

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

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

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

.service-number {
  position: absolute;
  top: 20px;
  right: 24px;
  font-size: 3rem;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.03);
  line-height: 1;
}

.service-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.15), rgba(167, 139, 250, 0.1));
  border-radius: var(--radius-md);
  color: var(--accent);
  margin-bottom: 20px;
}

.service-icon svg { width: 26px; height: 26px; }

.service-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.service-card p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

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

.service-tags li {
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--accent-light);
  background: rgba(56, 189, 248, 0.08);
  border-radius: 100px;
}

/* ===== Solutions ===== */
.solutions-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.industry-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 32px;
}

.industry-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  text-align: left;
  font-family: var(--font-sans);
  color: var(--text-primary);
  transition: var(--transition);
  width: 100%;
}

.industry-item:hover,
.industry-item.active {
  border-color: var(--accent);
  background: rgba(56, 189, 248, 0.05);
}

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

.industry-item strong {
  display: block;
  font-size: 0.9375rem;
  margin-bottom: 2px;
}

.industry-item span {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.solutions-panel {
  padding: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  min-height: 360px;
  position: relative;
}

.panel-content {
  display: none;
  animation: fadeIn 0.4s ease;
}

.panel-content.active { display: block; }

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

.panel-content h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--accent-light);
}

.panel-content > p {
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.7;
}

.panel-content ul li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 12px;
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

.panel-content ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
}

/* ===== Process ===== */
.process { background: var(--bg-secondary); }

.process-timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}

.process-timeline::before {
  content: '';
  position: absolute;
  top: 28px;
  left: 12.5%;
  right: 12.5%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--purple), var(--accent));
  opacity: 0.3;
}

.process-step {
  text-align: center;
  position: relative;
}

.step-marker {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  background: var(--bg-card);
  border: 2px solid var(--accent);
  border-radius: 50%;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--accent);
  position: relative;
  z-index: 1;
}

.step-content h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.step-content p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== Testimonials ===== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

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

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

.quote-icon {
  font-size: 3rem;
  line-height: 1;
  color: var(--accent);
  opacity: 0.4;
  font-family: Georgia, serif;
  margin-bottom: 12px;
}

.testimonial-card p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin-bottom: 24px;
  font-style: italic;
}

.testimonial-card footer {
  display: flex;
  align-items: center;
  gap: 12px;
}

.avatar {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient);
  border-radius: 50%;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--bg-primary);
}

.testimonial-card cite {
  display: block;
  font-style: normal;
  font-weight: 600;
  font-size: 0.9375rem;
}

.testimonial-card footer span {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* ===== CTA ===== */
.cta-section { padding: 60px 0; }

.cta-box {
  text-align: center;
  padding: 64px 48px;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.1), rgba(167, 139, 250, 0.08));
  border: 1px solid rgba(56, 189, 248, 0.2);
  border-radius: var(--radius-xl);
}

.cta-box h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.3;
}

.cta-box p {
  color: var(--text-secondary);
  margin-bottom: 28px;
  font-size: 1.0625rem;
}

/* ===== Contact ===== */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: start;
}

.contact-info p {
  color: var(--text-secondary);
  margin: 16px 0 32px;
  line-height: 1.7;
}

.contact-details li {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-details svg {
  width: 24px;
  height: 24px;
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.contact-details strong {
  display: block;
  font-size: 0.875rem;
  margin-bottom: 4px;
}

.contact-details span {
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.contact-form {
  padding: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  color: var(--text-primary);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group textarea { resize: vertical; min-height: 100px; }

.form-group select {
  cursor: pointer;
  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='%2394a3b8' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 40px;
}

.form-success {
  text-align: center;
  color: #4ade80;
  font-size: 0.9375rem;
  margin-top: 16px;
  padding: 12px;
  background: rgba(74, 222, 128, 0.1);
  border-radius: var(--radius-md);
}

/* ===== Footer ===== */
.footer {
  padding: 64px 0 32px;
  border-top: 1px solid var(--border);
  background: var(--bg-secondary);
}

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

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-top: 16px;
  max-width: 280px;
  line-height: 1.7;
}

.footer-links h4 {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
}

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

.footer-links a {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: var(--transition);
}

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

.social-links {
  display: flex;
  gap: 12px;
}

.social-links a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  transition: var(--transition);
}

.social-links a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.social-links svg { width: 18px; height: 18px; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.footer-bottom p {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

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

.footer-legal a {
  font-size: 0.8125rem;
  color: var(--text-muted);
  transition: var(--transition);
}

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

/* ===== Reveal Animation ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    padding-bottom: 48px;
  }

  .hero-desc { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-visual { order: -1; }

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

  .solutions-layout { grid-template-columns: 1fr; }
  .process-timeline { grid-template-columns: repeat(2, 1fr); gap: 40px; }
  .process-timeline::before { display: none; }
  .contact-layout { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }

  .nav-links {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(10, 14, 23, 0.98);
    backdrop-filter: blur(16px);
    padding: 24px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    opacity: 0;
    transition: var(--transition);
    pointer-events: none;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav-links a { width: 100%; text-align: center; padding: 12px; }

  .about-grid,
  .services-grid,
  .testimonials-grid,
  .process-timeline {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    flex-direction: column;
    gap: 20px;
  }

  .stat-divider { width: 48px; height: 1px; }

  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
  .section { padding: 72px 0; }
  .cta-box { padding: 40px 24px; }
  .contact-form { padding: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  .reveal { opacity: 1; transform: none; }
  .cursor-glow { display: none; }
}