:root {
  --page-bg: #f9f9f7;
  --surface: #fcfcfb;
  --surface-alt: #f0f0ee;
  --ink-primary: #0b0b0b;
  --ink-rgb: 11, 11, 11;
  --ink-secondary: #52514e;
  --ink-muted: #898781;
  --border: rgba(11, 11, 11, 0.1);

  --accent: #2a5fd6;
  --accent-hover: #2350bd;
  --accent-ink: #ffffff;
  --accent-tint: #eaf0fe;

  --status-good: #0ca30c;
  --status-warning: #fab219;
  --status-critical: #d03b3b;
}

@media (prefers-color-scheme: dark) {
  :root {
    --page-bg: #15171c;
    --surface: #1c1f26;
    --surface-alt: #191c22;
    --ink-primary: #f0f1f3;
    --ink-rgb: 240, 241, 243;
    --ink-secondary: #b7bac4;
    --ink-muted: #7d818f;
    --border: rgba(255, 255, 255, 0.1);

    --accent: #5b8bf0;
    --accent-hover: #729cf2;
    --accent-ink: #ffffff;
    --accent-tint: rgba(91, 139, 240, 0.18);

    --status-good: #3ecf6e;
    --status-warning: #f5b93d;
    --status-critical: #ef5959;
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--page-bg);
  color: var(--ink-primary);
  line-height: 1.5;
}

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

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

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(var(--ink-rgb), 0.02);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0.9rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-brand {
  display: flex;
  align-items: center;
}

.nav-logo {
  height: 26px;
  width: auto;
}

@media (prefers-color-scheme: dark) {
  .nav-logo,
  .footer-logo {
    filter: invert(1) brightness(1.8);
  }
}

.nav-links {
  display: flex;
  gap: 1.75rem;
  flex: 1;
}

.nav-links a {
  color: var(--ink-secondary);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
}

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

.nav-cta {
  flex-shrink: 0;
}

/* Buttons */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.55rem 1.1rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
}

.button-primary {
  background: var(--accent);
  color: var(--accent-ink);
}

.button-primary:hover {
  background: var(--accent-hover);
}

.button-secondary {
  background: transparent;
  color: var(--ink-primary);
  border-color: var(--border);
}

.button-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.button-lg {
  padding: 0.8rem 1.6rem;
  font-size: 1rem;
}

/* Hero */
.hero {
  max-width: 1120px;
  margin: 0 auto;
  padding: 5rem 1.5rem 4rem;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 3rem;
  }
}

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-tint);
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  margin-bottom: 1.25rem;
}

.hero h1 {
  font-size: 2.6rem;
  line-height: 1.15;
  font-weight: 800;
  margin: 0 0 1.25rem;
  letter-spacing: -0.02em;
}

@media (max-width: 600px) {
  .hero h1 {
    font-size: 2rem;
  }
}

.hero-sub {
  font-size: 1.08rem;
  color: var(--ink-secondary);
  max-width: 46rem;
  margin: 0 0 2rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Hero visual mock card */
.hero-visual {
  display: flex;
  justify-content: center;
}

.mock-card {
  width: 100%;
  max-width: 360px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.25rem;
  box-shadow: 0 20px 60px rgba(var(--ink-rgb), 0.12);
}

.mock-card-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  font-weight: 700;
  font-size: 0.85rem;
}

.mock-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
}

.mock-dot-critical {
  background: var(--status-critical);
}

.mock-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.6rem 0;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
}

.mock-row span:first-child {
  color: var(--ink-secondary);
}

.mock-trend {
  font-weight: 700;
  white-space: nowrap;
}

.mock-trend-up {
  color: var(--status-critical);
}

.mock-trend-warn {
  color: var(--status-warning);
}

.mock-footer {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
  font-size: 0.72rem;
  color: var(--ink-muted);
}

/* Sections */
.section {
  padding: 4.5rem 1.5rem;
}

.section-alt {
  background: var(--surface-alt);
}

.section-inner {
  max-width: 1120px;
  margin: 0 auto;
}

.section-inner-narrow {
  max-width: 800px;
}

.section h2 {
  font-size: 1.9rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 0 0 1rem;
  max-width: 40rem;
}

.section-lede {
  font-size: 1.05rem;
  color: var(--ink-secondary);
  max-width: 42rem;
  margin: 0 0 2.5rem;
}

/* Compare grid */
.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 800px) {
  .compare-grid {
    grid-template-columns: 1fr;
  }
}

.compare-card {
  border-radius: 14px;
  padding: 1.75rem;
  border: 1px solid var(--border);
}

.compare-card h3 {
  margin: 0 0 1.1rem;
  font-size: 1.1rem;
}

.compare-card ul {
  margin: 0;
  padding: 0 0 0 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  font-size: 0.92rem;
}

.compare-card-muted {
  background: var(--surface);
  color: var(--ink-muted);
}

.compare-card-accent {
  background: var(--accent-tint);
  border-color: var(--accent);
}

.compare-card-accent h3 {
  color: var(--accent);
}

.compare-card-accent ul {
  color: var(--ink-primary);
}

/* Feature grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.75rem;
}

.feature-icon {
  font-size: 1.6rem;
  margin-bottom: 0.85rem;
}

.feature-card h3 {
  margin: 0 0 0.6rem;
  font-size: 1.05rem;
}

.feature-card p {
  margin: 0;
  color: var(--ink-secondary);
  font-size: 0.92rem;
}

/* AI provider row */
.ai-provider-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.ai-provider-pill {
  padding: 0.55rem 1.1rem;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  font-weight: 600;
  font-size: 0.88rem;
}

.ai-provider-pill-muted {
  color: var(--ink-muted);
  font-weight: 500;
}

/* Philosophy grid */
.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.75rem;
}

.philosophy-item h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  color: var(--accent);
}

.philosophy-item p {
  margin: 0;
  color: var(--ink-secondary);
  font-size: 0.92rem;
}

/* CTA */
.cta {
  padding: 5rem 1.5rem;
  text-align: center;
}

.cta-inner {
  max-width: 640px;
  margin: 0 auto;
}

.cta h2 {
  font-size: 1.9rem;
  font-weight: 800;
  margin: 0 0 0.75rem;
}

.cta p {
  color: var(--ink-secondary);
  margin: 0 0 2rem;
  font-size: 1.02rem;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 2rem 1.5rem;
}

.footer-inner {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-logo {
  height: 18px;
  width: auto;
  opacity: 0.7;
}

.footer-copy {
  color: var(--ink-muted);
  font-size: 0.82rem;
}