:root {
  --color-gold: #C5A059;
  --color-gold-light: #D4B87A;
  --color-gold-dark: #A8863F;
  --color-black: #0A0A0A;
  --color-white: #FFFFFF;
  --color-gray-50: #FAFAFA;
  --color-gray-100: #F3F4F6;
  --color-gray-200: #E5E7EB;
  --color-gray-500: #6B7280;
  --color-gray-700: #374151;
  --color-success: #22C55E;
  --color-success-bg: #ECFDF5;
  --color-success-text: #15803D;
  --background: var(--color-white);
  --background-muted: var(--color-gray-50);
  --foreground: var(--color-black);
  --foreground-muted: var(--color-gray-500);
  --primary: var(--color-gold);
  --primary-foreground: var(--color-white);
  --border: var(--color-gray-200);
  --sidebar: var(--color-black);
  --sidebar-foreground: #F9FAFB;
  --sidebar-accent: rgba(197, 160, 89, 0.15);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 24px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.08);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.06);
  --font-sans: "Inter", "Geist", "Helvetica Neue", Arial, sans-serif;
  --radius-card: 16px;
  --radius-button: 9999px;
  --transition: 200ms ease;
  --nav-height: 72px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--background);
  color: var(--foreground);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

a { color: inherit; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

.logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  cursor: pointer;
  line-height: 0;
}

.logo-img {
  display: block;
  height: 24px;
  width: auto;
}

.logo:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 4px;
  border-radius: 4px;
}

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

.section-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 12px;
}

.display-xl {
  font-size: clamp(40px, 5vw, 60px);
  font-weight: 700;
  line-height: 1.05;
}

.display-lg {
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 700;
  line-height: 1.1;
}

.heading-md {
  font-size: clamp(20px, 2vw, 24px);
  font-weight: 600;
  line-height: 1.2;
}

.body-lg {
  font-size: 18px;
  color: var(--foreground-muted);
  line-height: 1.6;
}

.body-md {
  font-size: 16px;
  color: var(--foreground-muted);
  line-height: 1.6;
}

.section {
  padding: 96px 0;
}

.section-muted { background: var(--background-muted); }

.section-header {
  max-width: 640px;
  margin-bottom: 56px;
}

.section-header-center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-button);
  padding: 12px 24px;
  border: none;
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--color-gold);
  color: var(--primary-foreground);
}

.btn-primary:hover { background: var(--color-gold-light); }
.btn-primary:active { background: var(--color-gold-dark); }

.btn-secondary {
  background: transparent;
  color: var(--color-black);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

.btn-ghost {
  background: transparent;
  color: var(--color-black);
  padding: 12px 16px;
}

.btn-ghost:hover { color: var(--color-gold); }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-black);
  text-decoration: none;
  cursor: pointer;
  transition: color var(--transition);
}

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

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
  gap: 24px;
}

.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-black);
  text-decoration: none;
  cursor: pointer;
  transition: color var(--transition);
}

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

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

.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--color-white);
  cursor: pointer;
  color: var(--color-black);
}

.menu-toggle:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}

.mobile-nav {
  display: none;
  border-top: 1px solid var(--border);
  background: var(--color-white);
  padding: 16px 0 24px;
}

.mobile-nav.open { display: block; }

.mobile-nav ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-nav a {
  display: block;
  padding: 12px 0;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-black);
  text-decoration: none;
  cursor: pointer;
}

.mobile-nav a:hover { color: var(--color-gold); }

.mobile-nav-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* Hero */
.hero {
  padding: 80px 0 96px;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  min-height: calc(80vh - var(--nav-height));
}

.hero-copy { max-width: 560px; }

.hero-copy .body-lg { margin-top: 20px; }

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.trust-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 24px 32px;
  margin-top: 32px;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-gray-700);
}

.trust-item svg {
  width: 16px;
  height: 16px;
  color: var(--color-gold);
  flex-shrink: 0;
}

.hero-visual-wrap {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  min-height: 420px;
}

.hero-visual-wrap::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(197, 160, 89, 0.1) 0%, transparent 65%);
  pointer-events: none;
}

.hero-radial-lines {
  position: absolute;
  width: 100%;
  height: 100%;
  opacity: 0.35;
  pointer-events: none;
}

.card-stage {
  position: relative;
  z-index: 2;
  perspective: 1000px;
  transform-style: preserve-3d;
}

.card-float {
  animation: card-float 6s ease-in-out infinite;
  transform-style: preserve-3d;
}

.card-3d {
  width: 360px;
  height: 226px;
  background: linear-gradient(145deg, #1f1f1f 0%, #0A0A0A 55%, #141414 100%);
  border-radius: 18px;
  padding: 28px 32px;
  color: white;
  box-shadow:
    0 20px 50px rgba(0, 0, 0, 0.22),
    0 4px 16px rgba(197, 160, 89, 0.12);
  position: relative;
  transform-style: preserve-3d;
  will-change: transform;
  border: 1px solid rgba(255, 255, 255, 0.06);
  transform: rotateY(-8deg) rotateX(4deg);
  transition: transform 450ms cubic-bezier(0.22, 1, 0.36, 1);
}

.card-3d.is-interactive {
  transition: transform 80ms linear;
}

.card-3d::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(125deg, rgba(255, 255, 255, 0.08) 0%, transparent 40%, transparent 60%, rgba(197, 160, 89, 0.08) 100%);
  pointer-events: none;
}

.card-3d-chip {
  width: 46px;
  height: 34px;
  background: linear-gradient(135deg, var(--color-gold-light), var(--color-gold), var(--color-gold-dark));
  border-radius: 6px;
  margin-bottom: 40px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.35);
}

.card-3d-brand {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-gold);
}

.card-3d-number {
  position: absolute;
  left: 32px;
  bottom: 56px;
  font-size: 15px;
  letter-spacing: 0.18em;
  color: rgba(255, 255, 255, 0.55);
  font-variant-numeric: tabular-nums;
}

.card-3d-networks {
  position: absolute;
  bottom: 24px;
  right: 28px;
  display: flex;
  align-items: center;
  gap: 12px;
  opacity: 0.95;
}

.card-3d-networks svg {
  display: block;
}

.network-visa {
  overflow: visible;
}

@keyframes card-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}

.payment-networks {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.payment-networks-label {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-gray-500);
}

.payment-networks-logos {
  display: flex;
  align-items: center;
  gap: 20px;
}

.payment-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  padding: 0 14px;
  background: var(--color-white);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow-sm);
}

.payment-logo svg {
  display: block;
}

@media (prefers-reduced-motion: reduce) {
  .card-float {
    animation: none;
  }

  .card-3d {
    transition: none;
    transform: rotateY(-6deg) rotateX(3deg);
  }
}

/* Cards */
.cards-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

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

.card {
  background: var(--color-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 28px;
  box-shadow: var(--shadow-md);
  transition: box-shadow var(--transition);
}

.card-interactive { cursor: pointer; }
.card-interactive:hover { box-shadow: var(--shadow-card); }

.card-icon {
  width: 40px;
  height: 40px;
  color: var(--color-gold);
  margin-bottom: 16px;
}

.card-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.card-desc {
  font-size: 14px;
  color: var(--foreground-muted);
  margin-bottom: 16px;
}

/* Steps */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.step-card {
  position: relative;
  padding: 32px;
  background: var(--color-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(197, 160, 89, 0.12);
  color: var(--color-gold);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 20px;
}

.step-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.step-desc {
  font-size: 14px;
  color: var(--foreground-muted);
}

.section-cta {
  margin-top: 48px;
  text-align: center;
}

/* Use cases */
.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.use-case-card {
  display: flex;
  gap: 20px;
  padding: 28px;
  background: var(--color-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  transition: box-shadow var(--transition);
}

.use-case-card:hover { box-shadow: var(--shadow-card); }

.use-case-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  color: var(--color-gold);
}

.use-case-title {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 6px;
}

.use-case-desc {
  font-size: 14px;
  color: var(--foreground-muted);
}

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

.security-card {
  padding: 28px;
  background: var(--color-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
}

.security-card:nth-child(4),
.security-card:nth-child(5) {
  grid-column: span 1;
}

.security-icon {
  width: 32px;
  height: 32px;
  color: var(--color-gold);
  margin-bottom: 16px;
}

.security-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.security-desc {
  font-size: 14px;
  color: var(--foreground-muted);
}

/* Dashboard */
.dashboard-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 24px;
  align-items: start;
}

.dashboard-preview {
  display: flex;
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
  min-height: 500px;
}

.sidebar {
  width: 240px;
  background: var(--sidebar);
  color: var(--sidebar-foreground);
  padding: 24px 16px;
  flex-shrink: 0;
}

.sidebar .logo {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-gold);
  text-transform: uppercase;
  line-height: 1.2;
}

.sidebar-nav li { margin-bottom: 4px; }

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 14px;
  color: #9CA3AF;
  text-decoration: none;
  cursor: default;
}

.sidebar-nav a.active {
  background: var(--sidebar-accent);
  color: var(--color-gold);
}

.sidebar-nav svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.dashboard-main {
  flex: 1;
  background: var(--color-gray-50);
  padding: 24px 28px;
  min-width: 0;
}

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

.dashboard-header h3 {
  font-size: 24px;
  font-weight: 600;
}

.dashboard-header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.dashboard-header-actions svg {
  width: 20px;
  height: 20px;
  color: var(--color-gray-500);
}

.user-chip {
  display: flex;
  align-items: center;
  gap: 10px;
}

.avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  color: white;
}

.user-info {
  font-size: 13px;
  line-height: 1.3;
}

.user-info span {
  display: block;
  font-size: 11px;
  color: var(--foreground-muted);
}

.kpi-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.kpi-card {
  background: var(--color-white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}

.stat-card-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--foreground-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}

.stat-card-value {
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 8px;
}

.trend {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-success);
}

.charts-row {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 16px;
}

.chart-panel {
  background: var(--color-white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}

.chart-panel h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
}

.category-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.category-row:last-child { margin-bottom: 0; }

.category-label {
  width: 100px;
  font-size: 13px;
  flex-shrink: 0;
}

.category-bar-track {
  flex: 1;
  height: 8px;
  background: var(--color-gray-100);
  border-radius: 9999px;
  overflow: hidden;
}

.category-bar-fill {
  height: 100%;
  background: var(--color-gold);
  border-radius: 9999px;
}

.category-amount {
  width: 60px;
  text-align: right;
  font-size: 13px;
  font-weight: 500;
  flex-shrink: 0;
}

.domain-widget {
  background: var(--color-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 24px;
  box-shadow: var(--shadow-md);
}

.domain-widget h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
}

.domain-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

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

.badge {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  font-weight: 500;
  padding: 2px 8px;
  border-radius: var(--radius-button);
}

.badge-success {
  background: var(--color-success-bg);
  color: var(--color-success-text);
}

/* Metrics */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.metric-card {
  text-align: center;
  padding: 40px 24px;
  background: var(--color-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm);
}

.metric-value {
  font-size: clamp(32px, 4vw, 44px);
  font-weight: 700;
  line-height: 1;
  margin-bottom: 8px;
}

.metric-label {
  font-size: 14px;
  color: var(--foreground-muted);
}

/* Pricing */
.pricing-card {
  max-width: 720px;
  margin: 0 auto;
  background: var(--color-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

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

.pricing-table tr {
  border-bottom: 1px solid var(--border);
}

.pricing-table tr:last-child { border-bottom: none; }

.pricing-table td {
  padding: 20px 32px;
  font-size: 15px;
}

.pricing-table td:first-child {
  color: var(--color-gray-700);
}

.pricing-table td:last-child {
  text-align: right;
  font-weight: 600;
}

.pricing-note {
  padding: 24px 32px;
  background: var(--background-muted);
  font-size: 14px;
  color: var(--foreground-muted);
  text-align: center;
}

.pricing-cta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  padding: 24px 32px 32px;
}

/* FAQ */
.faq-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--color-white);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  text-align: left;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-black);
  transition: color var(--transition);
}

.faq-question:hover { color: var(--color-gold); }

.faq-question:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: -2px;
}

.faq-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--color-gold);
  transition: transform var(--transition);
}

.faq-item.open .faq-icon { transform: rotate(180deg); }

.faq-answer {
  display: none;
  padding: 0 24px 20px;
  font-size: 15px;
  color: var(--foreground-muted);
  line-height: 1.6;
}

.faq-item.open .faq-answer { display: block; }

/* CTA Banner */
.cta-banner {
  background: var(--color-black);
  color: var(--color-white);
  border-radius: var(--radius-card);
  padding: 64px 48px;
  text-align: center;
}

.cta-banner .display-lg {
  color: var(--color-white);
  margin-bottom: 16px;
}

.cta-banner .body-lg {
  color: rgba(255, 255, 255, 0.7);
  max-width: 520px;
  margin: 0 auto 32px;
}

.cta-banner-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.cta-banner .btn-secondary {
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.25);
}

.cta-banner .btn-secondary:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

/* Footer */
.footer {
  background: var(--color-black);
  color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 32px;
}

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

.footer-brand .logo { margin-bottom: 12px; display: inline-block; }

.footer-tagline {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
  max-width: 280px;
}

.footer-col h4 {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-white);
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  cursor: pointer;
  transition: color var(--transition);
}

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

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
  text-align: center;
}

/* Intro */
.intro-block {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.intro-block .body-lg { margin-top: 20px; }

/* Responsive */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; min-height: auto; }
  .hero-visual-wrap { min-height: 380px; }
  .cards-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .security-grid { grid-template-columns: repeat(2, 1fr); }
  .dashboard-layout { grid-template-columns: 1fr; }
  .domain-widget { max-width: 100%; }
  .kpi-row { grid-template-columns: repeat(2, 1fr); }
  .charts-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-links, .nav-actions .btn-ghost, .nav-actions .btn-primary { display: none; }
  .menu-toggle { display: inline-flex; }
}

@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .section { padding: 64px 0; }
  .card-3d {
    width: min(320px, 88vw);
    height: 200px;
    padding: 24px;
  }
  .card-3d-chip { width: 40px; height: 30px; margin-bottom: 28px; }
  .card-3d-brand { font-size: 16px; }
  .card-3d-number { left: 24px; bottom: 48px; font-size: 13px; }
  .card-3d-networks { right: 20px; bottom: 20px; }
  .cards-grid-4, .cards-grid-3, .steps-grid, .metrics-grid { grid-template-columns: 1fr; }
  .use-cases-grid, .security-grid { grid-template-columns: 1fr; }
  .dashboard-preview { flex-direction: column; }
  .sidebar { width: 100%; }
  .kpi-row { grid-template-columns: 1fr 1fr; }
  .cta-banner { padding: 48px 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .pricing-table td { padding: 16px 20px; }
}

@media (max-width: 480px) {
  .kpi-row { grid-template-columns: 1fr; }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; }
}