:root {
  --color-bg: #f5f5f5;
  --color-surface: #ffffff;
  --color-surface-alt: #f9fafb;
  --color-accent: #111827;
  --color-text: #111827;
  --color-text-muted: #6b7280;
  --color-border: #e5e7eb;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-pill: 999px;
  --shadow-soft: 0 18px 40px rgba(15, 23, 42, 0.08);
  --max-width: 1120px;
  --transition-fast: 150ms ease-out;
}

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

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
               "Segoe UI", sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
}

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

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

main {
  min-height: calc(100vh - 72px - 80px);
}

/* Layout utilities */

.page-shell {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px 16px 48px;
}

.section {
  margin-top: 40px;
}

.section-header {
  margin-bottom: 20px;
}

.section-title {
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.section-subtitle {
  margin-top: 4px;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
  padding: 20px;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--transition-fast);
  pointer-events: none;
}

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

.chip {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  background: #f9fafb;
}

.chip-dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  margin-right: 6px;
}

.chip-dot.live {
  background: #16a34a;
}
.chip-dot.beta,
.chip-dot.in_development {
  background: #facc15;
}
.chip-dot.labs {
  background: #8b5cf6;
}
.chip-dot.coming_soon {
  background: #f97316;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.brand-mark {
  width: 50px;
  height: 50px;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background: #f3f4f6;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.9rem;
}

.brand-tagline {
  font-size: 0.72rem;
  color: var(--color-text-muted);
}

.nav {
  display: flex;
  gap: 18px;
  align-items: center;
}

.nav-link {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  padding: 6px 0;
  position: relative;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: #111827;
  transition: width var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-text);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 18px;
}

.nav-toggle {
  display: none;
  width: 32px;
  height: 32px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: #ffffff;
  color: var(--color-text);
  justify-content: center;
  align-items: center;
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 20px 16px 26px;
  background: #ffffff;
  margin-top: 40px;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  align-items: flex-start;
}

.footer-col-title {
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

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

.footer-copy {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* Hero */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 30px;
  align-items: center;
  padding-top: 24px;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 3px 9px;
  border-radius: var(--radius-pill);
  background: #f3f4f6;
  border: 1px solid #e5e7eb;
  font-size: 0.7rem;
  color: var(--color-text-muted);
}

.hero-title {
  font-size: 2.2rem;
  line-height: 1.1;
  margin: 14px 0 10px;
}

.hero-title span {
  color: var(--color-accent);
}

.hero-subtitle {
  color: var(--color-text-muted);
  font-size: 0.98rem;
  max-width: 520px;
}

.hero-cta {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.btn {
  border-radius: var(--radius-pill);
  padding: 9px 18px;
  border: 1px solid transparent;
  font-size: 0.9rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: none;
  color: var(--color-text);
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.btn-primary {
  background: #111827;
  color: #ffffff;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.25);
}

.btn-ghost {
  border-color: var(--color-border);
  background: #ffffff;
  color: var(--color-text-muted);
}

.btn-ghost:hover {
  border-color: #d1d5db;
  color: var(--color-text);
}

.hero-meta {
  margin-top: 16px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.hero-visual {
  position: relative;
}

.hero-card {
  background: #ffffff;
  border-radius: 22px;
  border: 1px solid var(--color-border);
  padding: 14px 14px 16px;
  box-shadow: var(--shadow-soft);
}

.hero-product-tag {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: 10px;
}

.hero-metric-row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-top: 6px;
}

.hero-metric {
  flex: 1;
  background: #f9fafb;
  border-radius: 16px;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
}

.hero-metric-label {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}

.hero-metric-value {
  font-size: 0.95rem;
}

.hero-orbit {
  display: none;
}

/* Highlight strip */

.highlight-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.highlight-pill {
  padding: 7px 12px;
  border-radius: var(--radius-pill);
  background: #f3f4f6;
  border: 1px solid #e5e7eb;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* Grid */

.grid {
  display: grid;
  gap: 16px;
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

/* Product cards */

.product-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.product-card-image {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #f3f4f6;
  border: 1px solid var(--color-border);
  min-height: 120px;
}

.product-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-card-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.product-card-title {
  font-size: 1rem;
  font-weight: 500;
}

.product-card-tagline {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.product-meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
}

.product-link {
  font-size: 0.8rem;
  color: #111827;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* How it works */

.hiw-steps {
  display: grid;
  gap: 14px;
}

.hiw-step {
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  padding: 12px 14px;
  background: var(--color-surface);
}

.hiw-step-title {
  font-size: 0.93rem;
  font-weight: 500;
  margin-bottom: 4px;
}

.hiw-step-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* Split section */

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: 24px;
  align-items: center;
}

.split-visual {
  border-radius: 20px;
  border: 1px solid var(--color-border);
  background: #ffffff;
  min-height: 180px;
  box-shadow: var(--shadow-soft);
}

/* Labs section */

.labs-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.labs-pill {
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

/* Products page */

.products-intro {
  max-width: 620px;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.product-category-block {
  margin-top: 28px;
}

.product-category-title {
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-text-muted);
  margin-bottom: 6px;
}

/* Product detail */

.product-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 24px;
  align-items: center;
}

.product-hero-title {
  font-size: 1.8rem;
  margin: 6px 0;
}

.product-hero-tagline {
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.product-hero-actions {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.badge-status {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 4px 9px;
  border-radius: var(--radius-pill);
  background: #f3f4f6;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

.product-hero-visual {
  border-radius: 22px;
  border: 1px solid var(--color-border);
  background: #ffffff;
  min-height: 180px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.product-detail-section {
  margin-top: 28px;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 20px;
  align-items: flex-start;
}

.product-detail-section.image-left {
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
}

.product-detail-text-title {
  font-size: 1rem;
  margin-bottom: 6px;
}

.product-detail-body {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.product-detail-list {
  padding-left: 18px;
  margin: 6px 0 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.product-detail-visual {
  border-radius: 18px;
  border: 1px solid var(--color-border);
  background: #ffffff;
  min-height: 140px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.api-glance {
  margin-top: 24px;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid var(--color-border);
  background: #ffffff;
  font-size: 0.85rem;
}

.api-glance dt {
  font-weight: 500;
  margin-top: 6px;
}

.api-glance dd {
  margin: 0;
  color: var(--color-text-muted);
}

/* About */

.about-values {
  display: grid;
  gap: 14px;
}

.about-timeline {
  display: grid;
  gap: 10px;
  margin-top: 10px;
}

.timeline-item {
  border-left: 2px solid var(--color-border);
  padding-left: 10px;
}

.timeline-year {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.timeline-title {
  font-size: 0.95rem;
  margin: 2px 0;
}

.timeline-desc {
  font-size: 0.86rem;
  color: var(--color-text-muted);
}

.founder-card {
  margin-top: 20px;
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
}

.founder-avatar {
  width: 72px;
  height: 72px;
  border-radius: 999px;
  background: #111827;
  border: 2px solid var(--color-border);
}

/* Contact */

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 24px;
}

.form-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: 18px 18px 20px;
  box-shadow: var(--shadow-soft);
}

.form-row {
  margin-bottom: 12px;
}

.form-label {
  font-size: 0.85rem;
  margin-bottom: 4px;
  display: block;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  background: #ffffff;
  color: var(--color-text);
  padding: 7px 9px;
  font-size: 0.9rem;
}

.form-textarea {
  min-height: 100px;
  resize: vertical;
}

.form-note {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.captcha-box {
  margin-top: 4px;
  padding: 8px 9px;
  border-radius: 9px;
  background: #f9fafb;
  border: 1px dashed var(--color-border);
  font-size: 0.85rem;
}

.form-status {
  margin-top: 10px;
  font-size: 0.85rem;
}

.contact-side {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.contact-pill {
  margin-top: 10px;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid var(--color-border);
  background: #ffffff;
}

/* Generic helpers */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  font-size: 0.72rem;
  color: var(--color-text-muted);
}

/* Responsive */

@media (max-width: 900px) {
  .hero,
  .split,
  .product-hero,
  .product-detail-section,
  .contact-layout {
    grid-template-columns: minmax(0, 1fr);
  }
  .hero {
    padding-top: 18px;
  }
  .hero-visual {
    order: -1;
  }
  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .labs-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .page-shell {
    padding: 18px 12px 32px;
  }
  .hero-title {
    font-size: 1.7rem;
  }
  .nav {
    display: none;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .nav-open .nav {
    display: flex;
    position: absolute;
    top: 54px;
    right: 16px;
    padding: 10px 14px;
    border-radius: 18px;
    border: 1px solid var(--color-border);
    background: #ffffff;
    flex-direction: column;
    align-items: flex-start;
    min-width: 160px;
  }
  .grid-3,
  .grid-2,
  .labs-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .site-footer {
    padding-top: 16px;
  }
  .footer-inner {
    flex-direction: column;
  }
}