/* Starway AI Studio — Design tokens anchored to OpenDesign Agentic editorial palette */
:root {
  --bg: #f6f6f1;
  --surface: #ffffff;
  --surface-subtle: #eeeee6;
  --fg: #111827;
  --fg-muted: #4b5563;
  --border: #d6d3cb;
  --accent: #c83e00;
  --accent-bright: #ff5701;
  --accent-on: #ffffff;
  --success: #16a34a;
  --font-display: "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, "Cascadia Code", "JetBrains Mono", Menlo, monospace;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-pill: 9999px;
  --container-max: 70rem;
}

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

html {
  color-scheme: light;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-block-size: 100dvb;
  background-color: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  display: grid;
  grid-template-rows: auto 1fr auto;
}

a {
  color: inherit;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--accent-bright);
  outline-offset: 3px;
  border-radius: 4px;
}

.wrap {
  inline-size: min(var(--container-max), 100% - 2.5rem);
  margin-inline: auto;
}

/* Header */
.site-header {
  border-block-end: 1px solid var(--border);
  background: color-mix(in oklab, var(--bg) 92%, var(--surface));
  position: sticky;
  inset-block-start: 0;
  z-index: 10;
}

.nav-bar {
  display: flex;
  flex-wrap: wrap;
  flex-wrap: balance;
  align-items: safe center;
  justify-content: space-between;
  gap: 1rem 1.5rem;
  padding-block: 1rem;
}

.brand {
  display: inline-flex;
  align-items: safe center;
  gap: 0.625rem;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.brand-mark {
  inline-size: 1.75rem;
  block-size: 1.75rem;
  display: grid;
  place-content: center;
  border-radius: var(--radius-sm);
  background: var(--fg);
  color: var(--surface);
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  flex-wrap: balance;
  align-items: safe center;
  gap: 0.5rem 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  text-decoration: none;
  color: var(--fg-muted);
  font-size: 0.9375rem;
  font-weight: 500;
  transition: color 180ms ease;
}

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

/* Hero */
.hero {
  padding-block: clamp(3rem, 7vw, 5.5rem) clamp(2.5rem, 5vw, 4rem);
  border-block-end: 1px solid var(--border);
}

.eyebrow {
  display: inline-flex;
  align-items: safe center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin-block-end: 1rem;
}

.dot {
  inline-size: 0.5rem;
  block-size: 0.5rem;
  border-radius: var(--radius-pill);
  background: var(--success);
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-block: 0;
}

.hero h1 {
  font-size: clamp(2.15rem, 4.8vw, 3.5rem);
  max-inline-size: 18ch;
  margin-block-end: 1.25rem;
}

.hero-lead {
  font-size: clamp(1.0625rem, 1.5vw, 1.25rem);
  color: var(--fg-muted);
  max-inline-size: 62ch;
  margin-block: 0 2rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  flex-wrap: balance;
  align-items: safe center;
  gap: 0.875rem;
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: safe center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.35rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  transition: background-color 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-on);
  border: 1px solid var(--accent);
}

.btn-primary:hover {
  background: #a83400;
  border-color: #a83400;
}

.btn-secondary {
  background: var(--surface);
  color: var(--fg);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--fg);
}

/* Sections */
.section {
  padding-block: clamp(2.5rem, 5vw, 4rem);
  border-block-end: 1px solid var(--border);
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.75rem 1.5rem;
  margin-block-end: 2rem;
}

.section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.15rem);
}

.section-note {
  color: var(--fg-muted);
  max-inline-size: 52ch;
  margin: 0;
}

/* Card Grid with subgrid vertical alignment */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(17.5rem, 1fr));
  grid-template-rows: auto 1fr auto;
  gap: 1.25rem;
}

.card {
  grid-row: span 3;
  display: grid;
  grid-template-rows: auto 1fr auto;
  grid-template-rows: subgrid;
  gap: 0.875rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  min-inline-size: 0;
}

.card-kicker {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
  display: block;
  margin-block-end: 0.4rem;
}

.card h3 {
  font-size: 1.25rem;
}

.card p {
  margin: 0;
  color: var(--fg-muted);
  font-size: 0.95rem;
}

.card-meta {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--fg);
  padding-block-start: 0.75rem;
  border-block-start: 1px solid var(--surface-subtle);
}

/* Architecture Split */
.split-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(19rem, 1fr));
  gap: 1.5rem;
  align-items: start;
}

.spec-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  min-inline-size: 0;
}

.spec-list {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.75rem;
}

.spec-list li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-block-end: 0.65rem;
  border-block-end: 1px solid var(--surface-subtle);
  font-size: 0.9375rem;
}

.spec-list li:last-child {
  border-block-end: 0;
  padding-block-end: 0;
}

.spec-label {
  color: var(--fg-muted);
}

.spec-val {
  font-family: var(--font-mono);
  font-weight: 600;
  text-align: end;
}

/* Contact Banner */
.contact-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: safe center;
  gap: 1.5rem;
}

.contact-copy {
  max-inline-size: 54ch;
  min-inline-size: 0;
}

.contact-copy h2 {
  font-size: clamp(1.5rem, 2.8vw, 2rem);
  margin-block-end: 0.5rem;
}

.contact-copy p {
  margin: 0;
  color: var(--fg-muted);
}

/* Legal Prose */
.prose {
  padding-block: 3rem;
  max-inline-size: 68ch;
}

.prose h1 {
  font-size: 2.25rem;
  margin-block-end: 0.75rem;
}

.prose h2 {
  font-size: 1.35rem;
  margin-block: 2rem 0.6rem;
}

.prose p,
.prose li {
  color: var(--fg-muted);
}

/* Footer */
.site-footer {
  padding-block: 2rem;
  font-size: 0.875rem;
  color: var(--fg-muted);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: safe center;
  gap: 1rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.footer-links a {
  text-decoration: none;
}

.footer-links a:hover {
  text-decoration: underline;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}