:root {
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-primary-light: #eff6ff;
  --color-secondary: #059669;
  --color-secondary-light: #ecfdf5;
  --color-dark: #0f172a;
  --color-dark-surface: #1e293b;
  --color-slate: #334155;
  --color-muted: #64748b;
  --color-light-bg: #f8fafc;
  --color-border: #e2e8f0;
  --color-border-dark: #334155;
  --color-white: #ffffff;
  
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  
  --container-max: 1200px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

/* Announcement Banner */
.announcement-bar {
  background: linear-gradient(90deg, #1e3a8a, #2563eb, #0284c7);
  color: #ffffff;
  text-align: center;
  padding: 8px 16px;
  font-size: 0.88rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.announcement-bar strong {
  font-weight: 700;
  letter-spacing: 0.02em;
}

.announcement-bar a {
  color: #fef08a;
  text-decoration: underline;
  font-weight: 600;
}

.announcement-bar a:hover {
  color: #ffffff;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-primary-dark);
}

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

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* -------------------------------------------------------------
   Header & Navigation
------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-dark);
  letter-spacing: -0.02em;
}

.brand-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--color-primary), #3b82f6);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.brand-name {
  color: var(--color-dark);
}

.brand-name span {
  color: var(--color-primary);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-link {
  color: var(--color-slate);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.15s ease;
}

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

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

/* Language selector */
.lang-selector {
  position: relative;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--color-light-bg);
  border: 1px solid var(--color-border);
  padding: 6px 12px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-slate);
  cursor: pointer;
  transition: all 0.2s;
}

.lang-btn:hover {
  background: #f1f5f9;
  border-color: #cbd5e1;
}

.lang-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 8px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 140px;
  padding: 6px 0;
  display: none;
  z-index: 110;
}

.lang-dropdown.active {
  display: block;
}

.lang-option {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  font-size: 0.88rem;
  color: var(--color-slate);
  text-decoration: none;
  transition: background 0.15s;
}

.lang-option:hover {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
}

.lang-option.active {
  font-weight: 700;
  color: var(--color-primary);
  background: var(--color-primary-light);
}

/* Mobile menu button */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--color-dark);
}

/* -------------------------------------------------------------
   Buttons & Badges
------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #fff;
  box-shadow: 0 2px 4px rgba(37, 99, 235, 0.2);
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(37, 99, 235, 0.3);
}

.btn-secondary {
  background-color: var(--color-white);
  color: var(--color-slate);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background-color: var(--color-light-bg);
  border-color: #cbd5e1;
  color: var(--color-dark);
}

.btn-sm {
  padding: 6px 14px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1.05rem;
  border-radius: var(--radius-lg);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge-primary {
  background-color: var(--color-primary-light);
  color: var(--color-primary-dark);
}

.badge-success {
  background-color: var(--color-secondary-light);
  color: var(--color-secondary);
}

/* -------------------------------------------------------------
   Hero Section
------------------------------------------------------------- */
.hero {
  padding: 80px 0 60px;
  background: radial-gradient(circle at 50% 10%, #eff6ff 0%, #ffffff 80%);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 50px;
}

.hero-content h1 {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.15;
  color: var(--color-dark);
  letter-spacing: -0.03em;
  margin: 18px 0;
}

.hero-content h1 .gradient-text {
  background: linear-gradient(135deg, var(--color-primary), #0284c7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--color-muted);
  margin-bottom: 30px;
  max-width: 580px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.hero-stat-item strong {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-dark);
}

.hero-stat-item span {
  font-size: 0.85rem;
  color: var(--color-muted);
}

/* Hero Preview Mockup */
.hero-mockup {
  background: var(--color-dark);
  border-radius: var(--radius-lg);
  padding: 16px;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-border-dark);
  color: #fff;
}

.mockup-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}
.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #10b981; }

.mockup-title {
  font-size: 0.8rem;
  color: #94a3b8;
  font-family: monospace;
  margin-left: 6px;
}

.mockup-body {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mockup-card {
  background: var(--color-dark-surface);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 14px;
}

.mockup-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.88rem;
}

.mockup-badge {
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(37, 99, 235, 0.25);
  color: #93c5fd;
}

/* -------------------------------------------------------------
   Trust / Highlights Ticker
------------------------------------------------------------- */
.ticker-section {
  padding: 30px 0;
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-light-bg);
}

.ticker-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.ticker-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-weight: 600;
  color: var(--color-slate);
  font-size: 0.95rem;
}

.ticker-icon {
  color: var(--color-primary);
  font-size: 1.25rem;
}

/* -------------------------------------------------------------
   Section Common
------------------------------------------------------------- */
.section {
  padding: 90px 0;
}

.section-light {
  background-color: var(--color-light-bg);
}

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

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 55px;
}

.section-header h2 {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--color-dark);
  letter-spacing: -0.02em;
  margin: 12px 0 16px;
}

.section-dark .section-header h2 {
  color: #fff;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--color-muted);
}

.section-dark .section-header p {
  color: #94a3b8;
}

/* -------------------------------------------------------------
   Use Cases (Kenelle)
------------------------------------------------------------- */
.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.use-case-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  display: flex;
  flex-direction: column;
}

.use-case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.use-case-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.use-case-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 12px;
}

.use-case-card p {
  color: var(--color-muted);
  font-size: 0.95rem;
  margin-bottom: 20px;
  flex-grow: 1;
}

.use-case-list {
  list-style: none;
  font-size: 0.88rem;
  color: var(--color-slate);
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
}

.use-case-list li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.use-case-list li::before {
  content: "✓";
  color: var(--color-secondary);
  font-weight: bold;
}

/* -------------------------------------------------------------
   Features Grid
------------------------------------------------------------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.feature-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all 0.2s;
}

.feature-card:hover {
  border-color: #cbd5e1;
  box-shadow: var(--shadow-md);
}

.feature-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.92rem;
  color: var(--color-muted);
  line-height: 1.55;
}

/* -------------------------------------------------------------
   Architecture & Tech Banner
------------------------------------------------------------- */
.arch-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.arch-text h2 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 16px;
  color: #fff;
}

.arch-text p {
  color: #94a3b8;
  font-size: 1.05rem;
  margin-bottom: 24px;
}

.arch-features {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.arch-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.arch-item-icon {
  background: rgba(37, 99, 235, 0.2);
  color: #60a5fa;
  padding: 6px;
  border-radius: 6px;
  font-size: 1rem;
}

.arch-item-content strong {
  display: block;
  color: #f8fafc;
  font-size: 0.95rem;
}

.arch-item-content span {
  color: #94a3b8;
  font-size: 0.88rem;
}

.arch-code-box {
  background: var(--color-dark-surface);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-lg);
  padding: 24px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.88rem;
  color: #e2e8f0;
  box-shadow: var(--shadow-lg);
}

.code-keyword { color: #f472b6; }
.code-func { color: #60a5fa; }
.code-str { color: #34d399; }
.code-comment { color: #64748b; font-style: italic; }

/* -------------------------------------------------------------
   Pricing Section
------------------------------------------------------------- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: stretch;
}

.pricing-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.25s ease;
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

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

.pricing-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: #fff;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pricing-header h3 {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-dark);
  margin-bottom: 6px;
}

.pricing-desc {
  font-size: 0.9rem;
  color: var(--color-muted);
  min-height: 42px;
}

.pricing-price {
  margin: 24px 0;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.pricing-amount {
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--color-dark);
  line-height: 1;
}

.pricing-period {
  color: var(--color-muted);
  font-size: 0.95rem;
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 30px;
  flex-grow: 1;
  font-size: 0.92rem;
  color: var(--color-slate);
}

.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.check-icon {
  color: var(--color-secondary);
  font-weight: bold;
  font-size: 1.1rem;
  line-height: 1.3;
}

/* Pricing Disclaimer */
.pricing-disclaimer {
  margin-top: 40px;
  padding: 16px 20px;
  background-color: var(--color-primary-light);
  border: 1px solid #bfdbfe;
  border-radius: var(--radius-md);
  text-align: center;
  font-size: 0.9rem;
  color: #1e3a8a;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.disclaimer-icon {
  font-size: 1.15rem;
}

/* -------------------------------------------------------------
   FAQ Section
------------------------------------------------------------- */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

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

.faq-question {
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  padding: 18px 22px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  transition: background 0.15s;
}

.faq-question:hover {
  background-color: var(--color-light-bg);
}

.faq-chevron {
  transition: transform 0.2s ease;
  font-size: 0.9rem;
  color: var(--color-muted);
}

.faq-item.active .faq-chevron {
  transform: rotate(180deg);
}

.faq-answer {
  display: none;
  padding: 0 22px 18px;
  font-size: 0.95rem;
  color: var(--color-muted);
  line-height: 1.6;
}

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

/* -------------------------------------------------------------
   CTA Banner
------------------------------------------------------------- */
.cta-banner {
  background: linear-gradient(135deg, var(--color-dark), var(--color-dark-surface));
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  text-align: center;
  margin: 0 auto;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-border-dark);
}

.cta-banner h2 {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 14px;
  color: #fff;
}

.cta-banner p {
  font-size: 1.15rem;
  color: #94a3b8;
  max-width: 600px;
  margin: 0 auto 30px;
}

.cta-banner .btn-primary {
  background: #3b82f6;
}
.cta-banner .btn-primary:hover {
  background: #2563eb;
}

/* -------------------------------------------------------------
   Footer
------------------------------------------------------------- */
.site-footer {
  background-color: var(--color-dark);
  color: #94a3b8;
  padding: 70px 0 30px;
  border-top: 1px solid var(--color-border-dark);
  font-size: 0.92rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-brand h4 {
  font-size: 1.3rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
}

.footer-brand p {
  max-width: 320px;
  line-height: 1.6;
  margin-bottom: 16px;
}

.footer-col h5 {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}

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

.footer-col a {
  color: #94a3b8;
  transition: color 0.15s;
}

.footer-col a:hover {
  color: #fff;
}

.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.85rem;
}

/* -------------------------------------------------------------
   Responsive Styles
------------------------------------------------------------- */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-actions {
    justify-content: center;
  }
  .hero-stats {
    justify-content: center;
  }
  .ticker-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .use-cases-grid,
  .features-grid,
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .arch-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .mobile-toggle {
    display: block;
  }
  .nav-menu {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 20px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    display: none;
    gap: 16px;
  }
  .nav-menu.active {
    display: flex;
  }
  .hero-content h1 {
    font-size: 2.25rem;
  }
  .ticker-grid {
    grid-template-columns: 1fr;
    text-align: left;
  }
  .ticker-item {
    justify-content: flex-start;
  }
  .use-cases-grid,
  .features-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}