/* Beta-Dyne — dark dev-tools brand following the Composio reference system.
   See DESIGN.md for the full system. */

:root {
  --canvas: #0F0F0F;
  --canvas-deep: #000000;
  --surface: #181818;
  --surface-hi: #222222;
  --surface-strong: #2A2A2A;
  --hairline: #222222;
  --hairline-soft: #1A1A1A;
  --hairline-strong: #333333;

  --ink: #FFFFFF;
  --body: #A8A8A8;
  --body-strong: #FFFFFF;
  --muted: #888888;
  --muted-soft: #666666;

  --primary: #0007CD;
  --primary-active: #0005A3;
  --primary-glow: #1A26FF;

  --accent-cyan: #00D4FF;
  --success: #33D17A;
  --error: #FF4D4D;

  --shell: 1200px;
  --col: 720px;

  --sans: 'Inter', ui-sans-serif, -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; background: var(--canvas); }
body {
  background: var(--canvas);
  color: var(--body);
  font: 400 16px/1.5 var(--sans);
  letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; height: auto; }
a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 7, 205, 0.55);
  transition: color 160ms ease, border-color 160ms ease;
}
a:hover { color: var(--accent-cyan); border-bottom-color: var(--accent-cyan); }
strong { color: var(--ink); font-weight: 600; }

/* ===== Shell ===== */
.shell { max-width: var(--shell); margin: 0 auto; padding-inline: clamp(20px, 5vw, 56px); }
.col { max-width: var(--col); margin-inline: auto; }

/* ===== Top nav ===== */
.bar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(15, 15, 15, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--hairline);
  height: 64px;
}
.bar__row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
  height: 100%;
}

.wordmark {
  display: inline-flex; align-items: baseline; gap: 6px;
  color: var(--ink);
  border: none;
  font-family: var(--sans);
  letter-spacing: -0.01em;
}
.wordmark:hover { border: none; color: var(--ink); }
.wordmark__glyph {
  font: 600 22px/1 var(--sans);
  color: var(--primary);
  letter-spacing: -0.02em;
}
.wordmark__name {
  font: 500 17px/1 var(--sans);
  color: var(--ink);
}

.bar nav {
  display: inline-flex; gap: 28px; align-items: center;
  font: 500 14px/1.4 var(--sans);
  justify-self: center;
}
.bar nav a {
  color: var(--muted); border: none; padding: 4px 0;
  position: relative;
}
.bar nav a:hover { color: var(--ink); border: none; }
.bar nav a:hover::after {
  content: '';
  position: absolute; left: 50%; bottom: -6px;
  transform: translateX(-50%);
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--primary);
}

.bar__cta {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--primary); color: var(--ink);
  font: 500 14px/1 var(--sans);
  padding: 10px 18px;
  border-radius: 8px;
  border: none;
  transition: background 160ms ease;
}
.bar__cta:hover { background: var(--primary-active); border: none; color: var(--ink); }

@media (max-width: 1024px) {
  .bar nav { gap: 20px; }
}
@media (max-width: 720px) {
  .bar nav { display: none; }
  .bar__row { grid-template-columns: auto 1fr auto; }
  .bar__cta { padding: 8px 14px; font-size: 13px; }
}

/* ===== Hero ===== */
.hero {
  position: relative;
  padding-block: clamp(64px, 9vw, 120px);
  overflow: hidden;
  background: var(--canvas);
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 75%, rgba(26, 38, 255, 0.30) 0%, rgba(26, 38, 255, 0.10) 28%, transparent 60%),
    radial-gradient(ellipse 40% 30% at 50% 50%, rgba(0, 7, 205, 0.18) 0%, transparent 70%);
  pointer-events: none;
}
.hero__inner {
  position: relative;
  text-align: center;
}
.hero__badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--surface-hi);
  color: var(--ink);
  font: 600 11px/1.4 var(--sans);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 12px;
  border-radius: 9999px;
  border: 1px solid var(--hairline-strong);
  margin-bottom: 32px;
}
.hero__badge::before {
  content: '';
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
}
.display {
  font: 500 clamp(36px, 7vw, 72px)/1.05 var(--sans);
  letter-spacing: -0.03em;
  margin: 0 auto 24px;
  color: var(--ink);
  max-width: 18ch;
}
.display .accent { color: var(--primary-glow); }
.dek {
  font: 400 clamp(15px, 1.6vw, 18px)/1.55 var(--sans);
  color: var(--body);
  max-width: 56ch;
  margin: 0 auto 36px;
}
.cta-row {
  display: inline-flex; gap: 12px; flex-wrap: wrap; justify-content: center;
  margin-bottom: 64px;
}
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--primary); color: var(--ink);
  font: 500 14px/1 var(--sans);
  padding: 12px 22px;
  height: 44px;
  border-radius: 8px;
  border: none;
  transition: background 160ms ease;
}
.btn-primary:hover { background: var(--primary-active); border: none; color: var(--ink); }
.btn-outline {
  display: inline-flex; align-items: center; justify-content: center;
  background: transparent; color: var(--ink);
  font: 500 14px/1 var(--sans);
  padding: 11px 21px;
  height: 44px;
  border-radius: 8px;
  border: 1px solid var(--hairline-strong);
  transition: background 160ms ease, border-color 160ms ease;
}
.btn-outline:hover { background: var(--surface-hi); border-color: var(--muted-soft); color: var(--ink); }

/* ===== Terminal mockup grid ===== */
.term-grid {
  position: relative;
  background: var(--canvas-deep);
  border-radius: 16px;
  border: 1px solid var(--hairline-strong);
  padding: 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  max-width: 1080px;
  margin: 0 auto;
}
.term-pane {
  background: var(--surface);
  border-radius: 12px;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--hairline);
  display: flex; flex-direction: column;
  min-height: 220px;
}
.term-pane__chrome {
  display: flex; align-items: center; gap: 8px;
  height: 32px;
  padding: 0 14px;
  border-bottom: 1px solid var(--hairline);
  background: var(--surface);
}
.term-dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.term-dot--r { background: #FF5F56; }
.term-dot--y { background: #FFBD2E; }
.term-dot--g { background: #27C93F; }
.term-pane__file {
  margin-left: 10px;
  font: 400 12px/1 var(--mono);
  color: var(--muted);
}
.term-pane__body {
  padding: 18px 20px;
  font: 400 13px/1.55 var(--mono);
  color: var(--body);
  white-space: pre;
  overflow: hidden;
  flex: 1;
}
.term-pane__body .cmd { color: var(--ink); }
.term-pane__body .comment { color: var(--muted); }
.term-pane__body .num { color: var(--primary-glow); }
.term-pane__body .pass { color: var(--success); }
.term-pane__body .fail { color: var(--error); }
.term-pane__body .key { color: var(--accent-cyan); }
.term-pane__body .blue { color: var(--primary-glow); }
.term-pane__body .prompt { color: var(--success); }

@media (max-width: 720px) {
  .term-grid { grid-template-columns: 1fr; padding: 16px; gap: 12px; }
  .term-pane:nth-child(n+2) { display: none; }
  .term-pane__body { font-size: 12px; }
}

/* ===== Sections ===== */
section { padding-block: clamp(64px, 9vw, 96px); }
section.tight { padding-block: clamp(40px, 5vw, 56px); }

h2 {
  font: 500 32px/1.15 var(--sans);
  letter-spacing: -0.03em;
  margin: 0 0 18px 0;
  color: var(--ink);
}
h3 {
  font: 600 18px/1.4 var(--sans);
  letter-spacing: -0.005em;
  margin: 28px 0 10px 0;
  color: var(--ink);
}
p { margin: 0 0 18px 0; }

/* Editorial column */
.prose { max-width: var(--col); margin-inline: auto; }
.prose p { color: var(--body); font-size: 17px; line-height: 1.65; }
.prose h2 {
  font: 500 28px/1.2 var(--sans);
  letter-spacing: -0.025em;
  color: var(--ink);
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--hairline);
}
.prose h3 { color: var(--ink); margin-top: 36px; }
.prose ul, .prose ol { color: var(--body); padding-left: 22px; margin: 0 0 22px 0; font-size: 17px; line-height: 1.65; }
.prose li { margin-bottom: 8px; }
.prose a { color: var(--accent-cyan); border-bottom: 1px solid rgba(0, 212, 255, 0.4); }
.prose a:hover { color: var(--ink); border-bottom-color: var(--ink); }

/* ===== Code ===== */
:not(pre) > code {
  font: 400 0.92em/1.4 var(--mono);
  background: var(--surface-hi);
  border: 1px solid var(--hairline-strong);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--accent-cyan);
  white-space: nowrap;
}
pre {
  background: var(--canvas-deep);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 20px 22px;
  margin: 24px 0;
  overflow-x: auto;
  font: 400 13px/1.55 var(--mono);
  color: var(--body);
}
pre code { font: inherit; color: inherit; background: none; padding: 0; border: 0; white-space: pre; border-radius: 0; }

/* ===== Badge pills ===== */
.pill {
  display: inline-flex; align-items: center;
  background: var(--surface-hi);
  color: var(--ink);
  font: 600 11px/1.4 var(--sans);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 9999px;
  border: 1px solid var(--hairline-strong);
}
.pill--num {
  background: var(--primary);
  color: var(--ink);
  border-color: var(--primary);
}
.pill--mono {
  font-family: var(--mono);
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  font-size: 12px;
  color: var(--body);
}

/* ===== Inlined homepage post (feature-card) ===== */
.post-inline {
  border-top: 1px solid var(--hairline);
  padding-block: clamp(64px, 8vw, 96px);
}
.post-inline:first-of-type { border-top: 1px solid var(--hairline); }
.post-inline__head {
  max-width: var(--col);
  margin: 0 auto 28px;
}
.post-inline__meta {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin-bottom: 24px;
}
.post-inline h1 {
  font: 500 clamp(28px, 3.6vw, 44px)/1.1 var(--sans);
  letter-spacing: -0.03em;
  margin: 0 0 14px;
  color: var(--ink);
}
.post-inline h1 a { color: var(--ink); border: none; }
.post-inline h1 a:hover { color: var(--accent-cyan); }
.post-inline .dek {
  margin-left: 0; margin-right: 0;
  text-align: left;
  max-width: 64ch;
  color: var(--body);
}

.post-inline__plate {
  max-width: var(--shell);
  margin: 0 auto 36px;
  background: var(--surface);
  border: 1px solid var(--hairline-strong);
  border-radius: 12px;
  overflow: hidden;
}
.post-inline__plate svg { display: block; width: 100%; height: auto; }

.read-more {
  display: inline-flex; align-items: center; justify-content: center;
  margin-top: 32px;
  background: var(--primary); color: var(--ink);
  font: 500 14px/1 var(--sans);
  padding: 12px 20px;
  height: 40px;
  border-radius: 8px;
  border: none;
  transition: background 160ms ease;
}
.read-more:hover { background: var(--primary-active); border: none; color: var(--ink); }
.read-more::after { content: ' →'; margin-left: 8px; }

/* ===== Article page ===== */
.article-head {
  padding-top: clamp(48px, 6vw, 80px);
  padding-bottom: clamp(28px, 4vw, 40px);
  border-bottom: 1px solid var(--hairline);
}
.article-head h1 {
  font: 500 clamp(36px, 5vw, 56px)/1.05 var(--sans);
  letter-spacing: -0.03em;
  margin: 16px 0 18px;
  color: var(--ink);
}
.article-head .dek { max-width: 64ch; text-align: left; margin: 0; }
.article-plate {
  margin: 0 auto;
  max-width: var(--shell);
  border: 1px solid var(--hairline-strong);
  border-radius: 12px;
  overflow: hidden;
  background: var(--surface);
}
.article-plate svg { display: block; width: 100%; height: auto; }
.article-body { padding-block: 48px; }

.article-foot {
  border-top: 1px solid var(--hairline);
  padding-block: clamp(40px, 5vw, 64px);
  font: 400 14px/1.6 var(--sans);
  color: var(--body);
}
.article-foot a { color: var(--accent-cyan); border-bottom: 1px solid rgba(0, 212, 255, 0.4); }
.article-foot a:hover { color: var(--ink); border-bottom-color: var(--ink); }

/* ===== Spotlight CTA card ===== */
.cta-band {
  position: relative;
  padding-block: 96px;
  background: var(--canvas);
  text-align: center;
  overflow: hidden;
}
.cta-band::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 50% at 50% 50%, rgba(0, 7, 205, 0.30) 0%, transparent 60%);
  pointer-events: none;
}
.cta-band > * { position: relative; }
.cta-band h2 {
  font: 500 clamp(32px, 4.4vw, 44px)/1.1 var(--sans);
  letter-spacing: -0.03em;
  max-width: 22ch;
  margin: 0 auto 24px;
  color: var(--ink);
}

/* ===== Footer ===== */
footer.site {
  border-top: 1px solid var(--hairline);
  background: var(--canvas);
  padding: 64px 0 36px;
}
.foot-top {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--hairline);
  margin-bottom: 48px;
  flex-wrap: wrap;
}
.foot-ticker {
  font: 400 12px/1.5 var(--mono);
  color: var(--muted);
}
.foot-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  font: 400 14px/1.6 var(--sans);
  color: var(--body);
}
.foot-grid h4 {
  font: 600 11px/1.4 var(--sans);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
  margin: 0 0 16px;
}
.foot-grid ul { list-style: none; padding: 0; margin: 0; }
.foot-grid li { margin-bottom: 10px; }
.foot-grid a { color: var(--body); border: none; }
.foot-grid a:hover { color: var(--ink); border: none; }
.foot-grid p { font-size: 13px; line-height: 1.6; color: var(--muted); margin: 0; }
.foot-bottom {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--hairline);
  display: flex; justify-content: space-between; gap: 16px;
  flex-wrap: wrap;
  font: 400 12px/1.5 var(--sans);
  color: var(--muted);
}
@media (max-width: 720px) {
  .foot-grid { grid-template-columns: 1fr; gap: 32px; }
}

/* ===== Pull quote ===== */
.prose blockquote {
  border-left: 4px solid var(--primary);
  padding: 4px 18px;
  margin: 28px 0;
  color: var(--ink);
  font: 400 17px/1.6 var(--sans);
}

/* ===== 404 ===== */
.fourohfour {
  min-height: 60vh;
  display: flex; align-items: center;
  padding-block: 80px;
  position: relative;
  overflow: hidden;
}
.fourohfour::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 50% at 50% 50%, rgba(255, 77, 77, 0.18) 0%, transparent 60%);
  pointer-events: none;
}
.fourohfour > * { position: relative; }
.fourohfour h1 {
  font: 500 clamp(80px, 14vw, 200px)/1 var(--sans);
  letter-spacing: -0.04em;
  margin: 0;
  color: var(--error);
}

/* ===== Selection ===== */
::selection { background: var(--primary); color: var(--ink); }

/* ===== Reduced motion ===== */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}

/* ===== Helpers ===== */
.text-ink { color: var(--ink); }
.text-body { color: var(--body); }
.text-muted { color: var(--muted); }