:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --surface-muted: #f1f5f9;
  --ink: #0f172a;
  --ink-muted: #475569;
  --ink-subtle: #64748b;
  --border: #e2e8f0;
  --accent: #0f766e;
  --accent-dark: #115e59;
  --accent-soft: #ccfbf1;
  --indigo: #4338ca;
  --indigo-soft: #e0e7ff;
  --amber: #b45309;
  --amber-soft: #fef3c7;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 10px 30px rgba(15, 23, 42, 0.07);
  --max-w: 1160px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(248, 250, 252, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, #0f766e, #0d9488);
  color: #fff;
  display: grid;
  place-items: center;
  box-shadow: 0 4px 12px rgba(15, 118, 110, 0.25);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 0.94rem;
  font-weight: 500;
  color: var(--ink-muted);
}

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

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 10px;
  font-size: 0.925rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.15s ease, background-color 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(15, 118, 110, 0.22);
}

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

.btn-secondary {
  background: var(--surface);
  color: var(--ink);
  border-color: var(--border);
}

.btn-secondary:hover {
  background: var(--surface-muted);
}

.btn-lg {
  padding: 13px 24px;
  font-size: 0.98rem;
}

/* Hero */
.hero {
  padding: 72px 0 64px;
  background:
    radial-gradient(circle at 12% 15%, rgba(20, 184, 166, 0.1), transparent 42%),
    radial-gradient(circle at 88% 12%, rgba(67, 56, 202, 0.08), transparent 38%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 18px;
}

.hero h1 {
  margin: 0 0 18px;
  font-size: clamp(2.1rem, 4vw, 3.1rem);
  line-height: 1.14;
  letter-spacing: -0.03em;
}

.hero-sub {
  margin: 0 0 28px;
  font-size: 1.08rem;
  color: var(--ink-muted);
  max-width: 56ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 0.86rem;
  color: var(--ink-subtle);
}

.hero-trust span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* Interactive Telemetry Simulator Card */
.sim-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.sim-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: #0f172a;
  color: #f8fafc;
  font-size: 0.84rem;
}

.sim-status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-weight: 600;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #2dd4bf;
}

.sim-tabs {
  display: flex;
  gap: 6px;
  padding: 12px 16px;
  background: var(--surface-muted);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.sim-tab {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--ink-muted);
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
}

.sim-tab.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.sim-body {
  padding: 18px;
  display: grid;
  gap: 14px;
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.metric-box {
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--surface-muted);
  border: 1px solid var(--border);
}

.metric-label {
  font-size: 0.74rem;
  color: var(--ink-subtle);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.metric-val {
  font-size: 0.96rem;
  font-weight: 700;
  margin-top: 2px;
}

.sim-insight {
  padding: 12px 14px;
  border-radius: 10px;
  background: #f0fdfa;
  border: 1px solid #99f6e4;
  font-size: 0.88rem;
}

.sim-insight strong {
  display: block;
  color: var(--accent-dark);
  margin-bottom: 4px;
}

.sim-code {
  margin: 0;
  padding: 12px 14px;
  border-radius: 10px;
  background: #0f172a;
  color: #cbd5e1;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.78rem;
  overflow-x: auto;
  line-height: 1.5;
}

/* Sections */
.section {
  padding: 72px 0;
}

.section-alt {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-head {
  max-width: 680px;
  margin-bottom: 40px;
}

.eyebrow {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 8px;
}

.section-head h2 {
  margin: 0 0 12px;
  font-size: clamp(1.6rem, 2.8vw, 2.2rem);
  letter-spacing: -0.025em;
  line-height: 1.22;
}

.section-head p {
  margin: 0;
  color: var(--ink-muted);
  font-size: 1.02rem;
}

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

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.icon-badge {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  display: grid;
  place-items: center;
  margin-bottom: 16px;
}

.card h3 {
  margin: 0 0 10px;
  font-size: 1.12rem;
}

.card p {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.94rem;
}

/* Architecture Steps */
.arch-step {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
}

.arch-num {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--indigo-soft);
  color: var(--indigo);
  margin-bottom: 10px;
}

.arch-step h4 {
  margin: 0 0 6px;
  font-size: 1rem;
}

.arch-step p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--ink-muted);
}

/* Developer SDK Section */
.sdk-wrap {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 32px;
  align-items: start;
}

.sdk-list {
  display: grid;
  gap: 14px;
}

.sdk-item {
  padding: 16px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
}

.sdk-item strong {
  display: block;
  margin-bottom: 4px;
  font-size: 0.98rem;
}

.sdk-item span {
  font-size: 0.88rem;
  color: var(--ink-muted);
}

.code-panel {
  background: #0f172a;
  color: #e2e8f0;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.code-tabs {
  display: flex;
  gap: 6px;
  padding: 10px 14px;
  background: #1e293b;
  border-bottom: 1px solid #334155;
}

.code-tab {
  background: transparent;
  color: #94a3b8;
  border: 0;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
}

.code-tab.active {
  background: #0f766e;
  color: #ffffff;
}

.code-panel pre {
  margin: 0;
  padding: 20px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.83rem;
  line-height: 1.6;
  overflow-x: auto;
}

/* Pricing */
.price-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
}

.price-card.featured {
  border-color: var(--accent);
  box-shadow: 0 12px 32px rgba(15, 118, 110, 0.12);
  position: relative;
}

.price-badge {
  position: absolute;
  top: -11px;
  right: 20px;
  background: var(--accent);
  color: #fff;
  font-size: 0.74rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
}

.price-val {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 10px 0 6px;
}

.price-val span {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink-subtle);
}

.price-list {
  list-style: none;
  padding: 0;
  margin: 18px 0 24px;
  display: grid;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--ink-muted);
  flex-grow: 1;
}

.price-list li::before {
  content: "✓ ";
  color: var(--accent);
  font-weight: 700;
}

/* Team */
.team-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.team-photo-wrap {
  aspect-ratio: 1 / 1;
  background: var(--surface-muted);
  overflow: hidden;
}

.team-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.team-info {
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex-grow: 1;
}

.team-name {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 700;
}

.team-role {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--accent);
}

.team-bio {
  margin: 4px 0 0;
  font-size: 0.9rem;
  color: var(--ink-muted);
  flex-grow: 1;
}

.team-meta {
  margin-top: 10px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--ink-subtle);
}

/* Contact & CTA */
.contact-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  box-shadow: var(--shadow-sm);
}

.form-grid {
  display: grid;
  gap: 14px;
}

.field label {
  display: block;
  font-size: 0.84rem;
  font-weight: 600;
  margin-bottom: 5px;
}

.field input,
.field textarea,
.field select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font: inherit;
  font-size: 0.92rem;
  background: var(--bg);
}

.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: 2px solid rgba(15, 118, 110, 0.25);
  border-color: var(--accent);
}

.form-status {
  padding: 12px 14px;
  border-radius: 8px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: 0.88rem;
  font-weight: 600;
  display: none;
}

/* Footer */
.site-footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
  font-size: 0.86rem;
  color: var(--ink-subtle);
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 20px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

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

.disclaimer {
  padding: 14px 16px;
  border-radius: 10px;
  background: var(--surface-muted);
  border: 1px solid var(--border);
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--ink-subtle);
}

/* Subpages */
.doc-hero {
  padding: 48px 0 28px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.doc-content {
  padding: 40px 0 72px;
  max-width: 820px;
}

.doc-content h2 {
  margin-top: 28px;
  font-size: 1.3rem;
}

.doc-content p,
.doc-content li {
  color: var(--ink-muted);
  font-size: 0.96rem;
}

@media (max-width: 960px) {
  .hero-grid,
  .sdk-wrap,
  .contact-box,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .nav-links {
    display: none;
  }

  .metric-row {
    grid-template-columns: 1fr;
  }
}