/* ===================================================================
   ATRACAI Shared Styles — Marketing & Navigation
   Builds on top of design-system.css
   =================================================================== */

/* --- Google Fonts: Inter + JetBrains Mono --- */
@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');

/* --- Theme Custom Properties --- */
:root {
  --landing-bg: #0a0e17;
  --landing-bg-alt: #0d1321;
  --landing-surface: #111827;
  --landing-card: #151d2e;
  --landing-card-hover: #1a2438;
  --landing-border: #1e293b;
  --landing-border-bright: #2d3d56;
  --landing-text: #f1f5f9;
  --landing-text-secondary: #94a3b8;
  --landing-text-dim: #64748b;
  --landing-blue: #3b82f6;
  --landing-blue-bright: #60a5fa;
  --landing-cyan: #06b6d4;
  --landing-teal: #14b8a6;
  --landing-green: #22c55e;
  --landing-amber: #f59e0b;
  --landing-red: #ef4444;
  --landing-purple: #a78bfa;
  --landing-gradient-start: #0a0e17;
  --landing-gradient-end: #1a1f3a;
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'IBM Plex Mono', 'Fira Code', monospace;
  --nav-height: 72px;
  --max-width: 1200px;
}

/* --- Landing-specific Reset --- */
.landing-page {
  background: var(--landing-bg);
  color: var(--landing-text);
  font-family: var(--font-display);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

.landing-page *, .landing-page *::before, .landing-page *::after {
  box-sizing: border-box;
}

/* --- Smooth Scroll --- */
.landing-page {
  scroll-behavior: smooth;
}

/* ===================================================================
   NAVIGATION BAR
   =================================================================== */

.atc-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 9999;
  height: var(--nav-height);
  background: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(30, 41, 59, 0.5);
  transition: background 0.3s, box-shadow 0.3s;
}

.atc-nav.scrolled {
  background: rgba(10, 14, 23, 0.95);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.atc-nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.atc-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}

.atc-logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--landing-blue), var(--landing-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.atc-logo-icon::after {
  content: '';
  position: absolute;
  width: 14px; height: 14px;
  border: 2.5px solid rgba(255,255,255,0.9);
  border-radius: 50%;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
}

.atc-logo-icon::before {
  content: '';
  position: absolute;
  width: 2.5px; height: 10px;
  background: rgba(255,255,255,0.9);
  top: 4px; left: 50%;
  transform: translateX(-50%);
  border-radius: 2px;
}

.atc-logo-text {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 22px;
  letter-spacing: -0.5px;
  color: var(--landing-text);
}

/* Nav Links */
.atc-nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
}

.atc-nav-link {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  color: var(--landing-text-secondary);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 8px;
  transition: color 0.2s, background 0.2s;
  position: relative;
  white-space: nowrap;
}

.atc-nav-link:hover {
  color: var(--landing-text);
  background: rgba(255, 255, 255, 0.05);
}

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

.atc-dropdown-trigger {
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
}

.atc-dropdown-trigger::after {
  content: '';
  width: 0; height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
  transition: transform 0.2s;
}

.atc-dropdown:hover .atc-dropdown-trigger::after {
  transform: rotate(180deg);
}

.atc-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: -16px;
  min-width: 280px;
  background: var(--landing-surface);
  border: 1px solid var(--landing-border-bright);
  border-radius: 12px;
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity 0.2s, visibility 0.2s, transform 0.2s;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.atc-dropdown:hover .atc-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.atc-dropdown-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 8px;
  text-decoration: none;
  color: var(--landing-text-secondary);
  transition: background 0.15s, color 0.15s;
}

.atc-dropdown-item:hover {
  background: rgba(59, 130, 246, 0.08);
  color: var(--landing-text);
}

.atc-dropdown-icon {
  width: 36px; height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}

.atc-dropdown-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--landing-text);
}

.atc-dropdown-desc {
  font-size: 12px;
  color: var(--landing-text-dim);
  line-height: 1.4;
  margin-top: 2px;
}

/* Auth Buttons */
.atc-nav-auth {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.atc-btn-ghost {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  color: var(--landing-text-secondary);
  padding: 8px 18px;
  border: none;
  background: none;
  border-radius: 8px;
  cursor: pointer;
  transition: color 0.2s, background 0.2s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}

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

.atc-btn-primary {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  padding: 8px 20px;
  border: none;
  background: var(--landing-blue);
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}

.atc-btn-primary:hover {
  background: var(--landing-blue-bright);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.4);
}

.atc-btn-outline {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  color: var(--landing-text-secondary);
  padding: 8px 20px;
  border: 1px solid var(--landing-border-bright);
  background: transparent;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}

.atc-btn-outline:hover {
  color: var(--landing-text);
  border-color: var(--landing-text-dim);
  background: rgba(255, 255, 255, 0.03);
}

/* Mobile Hamburger */
.atc-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}

.atc-hamburger span {
  width: 22px;
  height: 2px;
  background: var(--landing-text-secondary);
  border-radius: 2px;
  transition: all 0.3s;
}

.atc-hamburger.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.atc-hamburger.open span:nth-child(2) {
  opacity: 0;
}

.atc-hamburger.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.atc-mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0; right: 0; bottom: 0;
  background: var(--landing-bg);
  z-index: 9998;
  padding: 2rem;
  overflow-y: auto;
}

.atc-mobile-menu.open {
  display: block;
}

.atc-mobile-menu a {
  display: block;
  padding: 14px 0;
  font-size: 16px;
  font-weight: 500;
  color: var(--landing-text-secondary);
  text-decoration: none;
  border-bottom: 1px solid var(--landing-border);
}

.atc-mobile-menu a:hover {
  color: var(--landing-text);
}

.atc-mobile-menu .mobile-section-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--landing-text-dim);
  margin-top: 24px;
  margin-bottom: 8px;
}

.atc-mobile-auth {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--landing-border);
}

/* ===================================================================
   HERO SECTION
   =================================================================== */

.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: calc(var(--nav-height) + 40px) 2rem 60px;
  background: linear-gradient(180deg, var(--landing-gradient-start) 0%, var(--landing-gradient-end) 60%, var(--landing-bg) 100%);
  overflow: hidden;
}

.hero-canvas {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  opacity: 0.6;
}

.hero-glow {
  position: absolute;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
  top: 20%; left: 50%;
  transform: translateX(-50%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 820px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--landing-cyan);
  background: rgba(6, 182, 212, 0.08);
  border: 1px solid rgba(6, 182, 212, 0.2);
  border-radius: 20px;
  padding: 6px 16px;
  margin-bottom: 28px;
}

.hero-badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--landing-green);
  box-shadow: 0 0 8px var(--landing-green);
  animation: hero-pulse 2s ease-in-out infinite;
}

@keyframes hero-pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 8px var(--landing-green); }
  50% { opacity: 0.5; box-shadow: 0 0 16px var(--landing-green); }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -2px;
  color: var(--landing-text);
  margin-bottom: 24px;
}

.hero-title-gradient {
  background: linear-gradient(135deg, #60a5fa 0%, #06b6d4 50%, #14b8a6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(16px, 2vw, 20px);
  font-weight: 400;
  line-height: 1.6;
  color: var(--landing-text-secondary);
  max-width: 640px;
  margin: 0 auto 40px;
}

.hero-ctas {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.hero-btn-primary {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  padding: 14px 32px;
  background: var(--landing-blue);
  border: none;
  border-radius: 10px;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s;
}

.hero-btn-primary:hover {
  background: var(--landing-blue-bright);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(59, 130, 246, 0.35);
}

.hero-btn-outline {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--landing-text-secondary);
  padding: 14px 32px;
  background: transparent;
  border: 1px solid var(--landing-border-bright);
  border-radius: 10px;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s;
}

.hero-btn-outline:hover {
  color: var(--landing-text);
  border-color: var(--landing-text-dim);
  background: rgba(255,255,255,0.03);
  transform: translateY(-2px);
}

/* Stats bar */
.hero-stats-bar {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.hero-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.hero-stat-value {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  color: var(--landing-text);
}

.hero-stat-label {
  font-size: 13px;
  color: var(--landing-text-dim);
  letter-spacing: 0.5px;
}

/* ===================================================================
   SECTION COMMON
   =================================================================== */

.landing-section {
  padding: 100px 2rem;
  position: relative;
}

.landing-section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--landing-blue);
  margin-bottom: 12px;
}

.section-heading {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  letter-spacing: -1px;
  color: var(--landing-text);
  margin-bottom: 16px;
  line-height: 1.15;
}

.section-desc {
  font-size: 17px;
  color: var(--landing-text-secondary);
  max-width: 600px;
  line-height: 1.6;
  margin-bottom: 48px;
}

/* ===================================================================
   PRODUCT CARDS
   =================================================================== */

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

.product-card {
  background: var(--landing-card);
  border: 1px solid var(--landing-border);
  border-radius: 14px;
  padding: 32px 28px;
  transition: all 0.25s;
  cursor: pointer;
  text-decoration: none;
  display: block;
  position: relative;
  overflow: hidden;
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--card-accent, var(--landing-blue));
  opacity: 0;
  transition: opacity 0.25s;
}

.product-card:hover {
  border-color: var(--landing-border-bright);
  background: var(--landing-card-hover);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

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

.product-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 22px;
}

.product-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--landing-text);
  margin-bottom: 10px;
  letter-spacing: -0.3px;
}

.product-desc {
  font-size: 14px;
  color: var(--landing-text-secondary);
  line-height: 1.65;
  margin-bottom: 20px;
}

.product-link {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  color: var(--landing-blue-bright);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.2s;
}

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

/* ===================================================================
   LIVE DATA STRIP
   =================================================================== */

.live-strip {
  background: var(--landing-surface);
  border: 1px solid var(--landing-border);
  border-radius: 14px;
  overflow: hidden;
}

.live-strip-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--landing-border);
}

.live-strip-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  color: var(--landing-text);
}

.live-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--landing-green);
  box-shadow: 0 0 8px var(--landing-green);
  animation: hero-pulse 2s ease-in-out infinite;
}

.live-strip-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--landing-text-dim);
}

.live-ports-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.live-port-cell {
  padding: 24px;
  border-right: 1px solid var(--landing-border);
  transition: background 0.2s;
}

.live-port-cell:last-child {
  border-right: none;
}

.live-port-cell:hover {
  background: rgba(59, 130, 246, 0.03);
}

.live-port-name {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--landing-text);
  margin-bottom: 4px;
}

.live-port-code {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--landing-text-dim);
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.live-port-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
}

.live-metric-value {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--landing-text);
}

.live-metric-label {
  font-size: 11px;
  color: var(--landing-text-dim);
  margin-top: 2px;
}

/* ===================================================================
   HOW IT WORKS
   =================================================================== */

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

.steps-grid::before {
  content: '';
  position: absolute;
  top: 40px;
  left: calc(16.67% + 24px);
  right: calc(16.67% + 24px);
  height: 2px;
  background: linear-gradient(90deg, var(--landing-blue), var(--landing-cyan), var(--landing-teal));
  opacity: 0.3;
}

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

.step-number {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: rgba(59, 130, 246, 0.1);
  border: 2px solid var(--landing-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--landing-blue);
  margin: 0 auto 20px;
  position: relative;
  z-index: 1;
}

.step-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--landing-text);
  margin-bottom: 10px;
}

.step-desc {
  font-size: 14px;
  color: var(--landing-text-secondary);
  line-height: 1.65;
}

/* ===================================================================
   PRICING TABLE
   =================================================================== */

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.pricing-card {
  background: var(--landing-card);
  border: 1px solid var(--landing-border);
  border-radius: 14px;
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  transition: all 0.25s;
  position: relative;
}

.pricing-card.featured {
  border-color: var(--landing-blue);
  box-shadow: 0 0 40px rgba(59, 130, 246, 0.12);
}

.pricing-card.featured::before {
  content: 'POPULAR';
  position: absolute;
  top: -12px; left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2px;
  color: #fff;
  background: var(--landing-blue);
  padding: 4px 14px;
  border-radius: 10px;
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.pricing-name {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--landing-text);
  margin-bottom: 8px;
}

.pricing-price {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 800;
  color: var(--landing-text);
  margin-bottom: 4px;
  letter-spacing: -1px;
}

.pricing-price span {
  font-size: 16px;
  font-weight: 500;
  color: var(--landing-text-dim);
}

.pricing-desc {
  font-size: 13px;
  color: var(--landing-text-dim);
  margin-bottom: 24px;
  line-height: 1.5;
}

.pricing-features {
  list-style: none;
  padding: 0;
  margin: 0 0 28px 0;
  flex: 1;
}

.pricing-features li {
  font-size: 13px;
  color: var(--landing-text-secondary);
  padding: 8px 0;
  border-bottom: 1px solid rgba(30, 41, 59, 0.5);
  display: flex;
  align-items: center;
  gap: 10px;
}

.pricing-features li::before {
  content: '';
  width: 16px; height: 16px;
  border-radius: 50%;
  background: rgba(34, 197, 94, 0.12);
  flex-shrink: 0;
  position: relative;
}

.pricing-features li::after {
  content: '';
  position: absolute;
  width: 6px; height: 3px;
  border-left: 1.5px solid var(--landing-green);
  border-bottom: 1.5px solid var(--landing-green);
  transform: rotate(-45deg);
  margin-left: 5px;
  margin-top: -1px;
}

/* Simpler check approach: use text */
.pricing-features li {
  position: relative;
  padding-left: 0;
}

.pricing-features li::before {
  content: '\2713';
  color: var(--landing-green);
  font-weight: 700;
  font-size: 13px;
  width: auto;
  height: auto;
  border-radius: 0;
  background: none;
}

.pricing-features li::after {
  display: none;
}

.pricing-btn {
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  display: block;
}

.pricing-btn-primary {
  background: var(--landing-blue);
  color: #fff;
  border: none;
}

.pricing-btn-primary:hover {
  background: var(--landing-blue-bright);
  transform: translateY(-1px);
}

.pricing-btn-outline {
  background: transparent;
  color: var(--landing-text-secondary);
  border: 1px solid var(--landing-border-bright);
}

.pricing-btn-outline:hover {
  border-color: var(--landing-text-dim);
  color: var(--landing-text);
}

/* ===================================================================
   USE CASES
   =================================================================== */

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

.usecase-card {
  background: var(--landing-card);
  border: 1px solid var(--landing-border);
  border-radius: 14px;
  padding: 36px 28px;
  transition: all 0.25s;
}

.usecase-card:hover {
  border-color: var(--landing-border-bright);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.usecase-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
}

.usecase-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--landing-text);
  margin-bottom: 10px;
}

.usecase-desc {
  font-size: 15px;
  color: var(--landing-text-secondary);
  line-height: 1.65;
}

/* ===================================================================
   FOOTER
   =================================================================== */

.landing-footer {
  border-top: 1px solid var(--landing-border);
  padding: 60px 2rem 40px;
  background: var(--landing-bg-alt);
}

.landing-footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

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

.footer-brand {
  max-width: 280px;
}

.footer-brand-name {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  color: var(--landing-text);
  margin-bottom: 12px;
}

.footer-brand-desc {
  font-size: 14px;
  color: var(--landing-text-dim);
  line-height: 1.6;
}

.footer-col-title {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--landing-text-dim);
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: var(--landing-text-secondary);
  text-decoration: none;
  padding: 6px 0;
  transition: color 0.15s;
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--landing-border);
  flex-wrap: wrap;
  gap: 12px;
}

.footer-copy {
  font-size: 13px;
  color: var(--landing-text-dim);
}

.footer-tech {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--landing-text-dim);
  letter-spacing: 0.5px;
}

/* ===================================================================
   SCROLL ANIMATIONS
   =================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }
.reveal-delay-6 { transition-delay: 0.6s; }

/* ===================================================================
   RESPONSIVE
   =================================================================== */

@media (max-width: 1024px) {
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .live-ports-grid { grid-template-columns: 1fr; }
  .live-port-cell { border-right: none; border-bottom: 1px solid var(--landing-border); }
  .live-port-cell:last-child { border-bottom: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .atc-nav-links, .atc-nav-auth { display: none; }
  .atc-hamburger { display: flex; }
  .products-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; gap: 40px; }
  .steps-grid::before { display: none; }
  .usecases-grid { grid-template-columns: 1fr; }
  .hero-stats-bar { gap: 24px; }
  .hero-stat-value { font-size: 20px; }
  .landing-section { padding: 60px 1.25rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  :root { --nav-height: 60px; }
  .hero-title { letter-spacing: -1px; }
  .hero-ctas { flex-direction: column; align-items: center; }
  .hero-btn-primary, .hero-btn-outline { width: 100%; justify-content: center; }
  .hero-stats-bar { flex-direction: column; gap: 16px; }
}