/* CodeSpire-Solutions — design tokens
   Concept: a "blueprint sheet" for developer tools. Dark navy technical
   sections carry the product story; warm paper sections carry the human
   one. The recurring shape is a rounded, snap-fit block — a direct nod
   to NodeQL's own visual-block interaction. */

:root {
  --ink-900: #0f1b2d;
  --ink-800: #16273e;
  --ink-700: #1e3352;
  --paper: #f5f2ea;
  --paper-dim: #ece7d9;
  --line-on-ink: rgba(245, 242, 234, 0.14);
  --amber: #e8a33d;
  --amber-dark: #a86a1c;
  --teal: #4fd1c5;
  --teal-dark: #1c7d73;
  --coral: #e8593c;
  --text-on-ink: #f5f2ea;
  --text-on-ink-dim: #b7c0cf;
  --text-on-paper: #17212f;
  --text-on-paper-dim: #55606f;

  --font-display: 'Space Grotesk', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  --radius-block: 14px;
  --max-width: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--text-on-paper);
  line-height: 1.6;
}

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

a { color: inherit; }

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- Eyebrow / mono labels ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 3px;
  background: var(--amber);
  display: inline-block;
}
.on-ink .eyebrow { color: var(--teal); }
.on-paper .eyebrow { color: var(--amber-dark); }

/* ---------- Header / nav ---------- */
.site-header {
  background: var(--ink-900);
  color: var(--text-on-ink);
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid var(--line-on-ink);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 19px;
  text-decoration: none;
  color: var(--text-on-ink);
}
.brand-mark {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: var(--amber);
  position: relative;
  flex: none;
}
.brand-mark::after {
  content: "";
  position: absolute;
  right: -9px;
  top: 50%;
  transform: translateY(-50%);
  width: 12px;
  height: 12px;
  border-radius: 4px;
  background: var(--teal);
}
nav.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}
nav.main-nav a {
  font-size: 14.5px;
  text-decoration: none;
  color: var(--text-on-ink-dim);
  padding: 8px 14px;
  border-radius: 999px;
  transition: color 0.15s ease, background 0.15s ease;
}
nav.main-nav a:hover,
nav.main-nav a.active {
  color: var(--ink-900);
  background: var(--teal);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  padding: 12px 22px;
  border-radius: 999px;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: var(--amber);
  color: #241503;
}
.btn-primary:hover { box-shadow: 0 6px 20px rgba(232, 163, 61, 0.35); }
.btn-secondary {
  background: transparent;
  border-color: var(--line-on-ink);
  color: var(--text-on-ink);
}
.on-paper .btn-secondary,
.on-paper-dim .btn-secondary {
  border-color: rgba(23, 33, 47, 0.22);
  color: var(--text-on-paper);
}
.btn-secondary:hover { border-color: var(--teal); }

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(circle at 85% 0%, rgba(79, 209, 197, 0.14), transparent 45%),
    var(--ink-900);
  color: var(--text-on-ink);
  padding: 88px 0 96px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line-on-ink) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-on-ink) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.55), transparent 75%);
  pointer-events: none;
}
.hero .wrap { position: relative; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(34px, 4.6vw, 54px);
  line-height: 1.08;
  margin: 18px 0 20px;
  letter-spacing: -0.01em;
}
.hero p.lede {
  font-size: 18px;
  color: var(--text-on-ink-dim);
  max-width: 46ch;
  margin: 0 0 32px;
}
.cta-row { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 34px; }
.trust-strip {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text-on-ink-dim);
  padding-top: 20px;
  border-top: 1px solid var(--line-on-ink);
}
.trust-strip span { display: flex; align-items: center; gap: 7px; }
.trust-strip span::before {
  content: "";
  width: 6px; height: 6px; border-radius: 2px;
  background: var(--teal);
}

/* ---------- Block-stack hero visual (signature element) ---------- */
.block-stack { display: flex; flex-direction: column; gap: 12px; }
.block {
  border-radius: var(--radius-block);
  padding: 16px 18px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  display: flex;
  align-items: center;
  gap: 10px;
  position: relative;
  border: 1px solid var(--line-on-ink);
  animation: block-in 0.6s ease both;
}
.block .nub {
  position: absolute; left: -7px; top: 50%; transform: translateY(-50%);
  width: 14px; height: 14px; border-radius: 4px;
}
.block-select { background: rgba(79, 209, 197, 0.14); margin-left: 0; }
.block-select .nub { background: var(--teal); }
.block-from { background: rgba(232, 163, 61, 0.14); margin-left: 22px; }
.block-from .nub { background: var(--amber); }
.block-where { background: rgba(232, 89, 60, 0.14); margin-left: 44px; }
.block-where .nub { background: var(--coral); }
.block-run {
  margin-left: 66px;
  background: var(--teal);
  color: var(--ink-900);
  font-weight: 700;
  border: none;
  width: fit-content;
}
.block-run .nub { display: none; }
@keyframes block-in {
  from { opacity: 0; transform: translateX(14px); }
  to { opacity: 1; transform: translateX(0); }
}
.block:nth-child(1) { animation-delay: 0.05s; }
.block:nth-child(2) { animation-delay: 0.18s; }
.block:nth-child(3) { animation-delay: 0.31s; }
.block:nth-child(4) { animation-delay: 0.44s; }

@media (prefers-reduced-motion: reduce) {
  .block { animation: none; }
}

/* ---------- Sections ---------- */
section { padding: 76px 0; }
.on-ink { background: var(--ink-900); color: var(--text-on-ink); }
.on-paper { background: var(--paper); color: var(--text-on-paper); }
.on-paper-dim { background: var(--paper-dim); color: var(--text-on-paper); }

.section-head { max-width: 62ch; margin-bottom: 42px; }
.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 32px);
  margin: 14px 0 10px;
}
.section-head p { color: var(--text-on-paper-dim); font-size: 16.5px; }
.on-ink .section-head p { color: var(--text-on-ink-dim); }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }

.card {
  background: var(--ink-800);
  border: 1px solid var(--line-on-ink);
  border-radius: var(--radius-block);
  padding: 26px;
}
.on-paper .card,
.on-paper-dim .card {
  background: #fff;
  border-color: rgba(23, 33, 47, 0.1);
}
.card h3 {
  font-family: var(--font-display);
  font-size: 18px;
  margin: 0 0 10px;
}
.card p { margin: 0; color: var(--text-on-ink-dim); font-size: 15px; }
.on-paper .card p, .on-paper-dim .card p { color: var(--text-on-paper-dim); }
.download-card {
  display: block;
  color: inherit;
  text-decoration: none;
  cursor: pointer;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}
.download-card:hover,
.download-card:focus-visible {
  border-color: var(--teal);
  box-shadow: 0 10px 24px rgba(23, 33, 47, 0.12);
  transform: translateY(-2px);
}
.download-card:focus-visible { outline: 3px solid var(--teal); outline-offset: 3px; }
.license-note { margin-top: 28px; font-size: 13.5px; color: var(--text-on-paper-dim); }

/* Feature card index using a snap-fit tab instead of decorative numbering */
.card { position: relative; padding-left: 30px; }
.card::before {
  content: "";
  position: absolute; left: 0; top: 26px; bottom: 26px; width: 6px;
  border-radius: 3px;
  background: var(--amber);
}
.card:nth-child(2)::before { background: var(--teal); }
.card:nth-child(3)::before { background: var(--coral); }

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(135deg, var(--ink-800), var(--ink-900));
  border-radius: 20px;
  padding: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
  color: var(--text-on-ink);
  border: 1px solid var(--line-on-ink);
}
.cta-band h2 { font-family: var(--font-display); font-size: 26px; margin: 0 0 8px; }
.cta-band p { margin: 0; color: var(--text-on-ink-dim); max-width: 46ch; }

/* ---------- Status pill ---------- */
.pill {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 4px 11px;
  border-radius: 999px;
  background: rgba(79, 209, 197, 0.15);
  color: var(--teal-dark);
  border: 1px solid rgba(79, 209, 197, 0.35);
}
.on-ink .pill { color: var(--teal); }
.pill.amber {
  background: rgba(232, 163, 61, 0.16);
  color: var(--amber-dark);
  border-color: rgba(232, 163, 61, 0.4);
}

/* ---------- App / product cards ---------- */
.app-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: #fff;
  border: 1px solid rgba(23, 33, 47, 0.1);
  border-radius: var(--radius-block);
  padding: 28px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.app-card:hover { border-color: var(--teal); transform: translateY(-2px); }
.app-card h3 { font-family: var(--font-display); font-size: 20px; margin: 12px 0 8px; }
.app-card p { margin: 0; color: var(--text-on-paper-dim); }

/* ---------- Gallery ---------- */
.gallery-item {
  background: var(--ink-800);
  border: 1px solid var(--line-on-ink);
  border-radius: var(--radius-block);
  aspect-ratio: 16/10;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-on-ink-dim);
  font-family: var(--font-mono);
  font-size: 13px;
  text-align: center;
  padding: 16px;
  position: relative;
}
.gallery-item span.label {
  position: absolute;
  bottom: 12px; left: 14px;
  color: var(--text-on-ink);
  font-size: 12.5px;
}

/* ---------- Forms ---------- */
form.stack { display: flex; flex-direction: column; gap: 16px; max-width: 520px; }
label { font-size: 14px; font-weight: 600; margin-bottom: 6px; display: block; }
input, textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 15px;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid rgba(23, 33, 47, 0.18);
  background: #fff;
  color: var(--text-on-paper);
}
textarea { min-height: 140px; resize: vertical; }
input:focus, textarea:focus { outline: 2px solid var(--teal); outline-offset: 1px; }
.notice {
  background: rgba(79, 209, 197, 0.14);
  border: 1px solid rgba(79, 209, 197, 0.4);
  color: var(--teal-dark);
  padding: 14px 18px;
  border-radius: 10px;
  font-size: 14.5px;
  margin-bottom: 18px;
}
.notice.error {
  background: rgba(232, 89, 60, 0.1);
  border-color: rgba(232, 89, 60, 0.35);
  color: var(--coral);
}

/* ---------- Blog ---------- */
.post-list { display: flex; flex-direction: column; gap: 26px; }
.post-item {
  padding-bottom: 26px;
  border-bottom: 1px solid rgba(23, 33, 47, 0.1);
}
.post-item:last-child { border-bottom: none; }
.post-item h3 { font-family: var(--font-display); font-size: 21px; margin: 6px 0 8px; }
.post-item h3 a { text-decoration: none; }
.post-item h3 a:hover { color: var(--teal-dark); }
.post-meta { font-family: var(--font-mono); font-size: 12px; color: var(--text-on-paper-dim); }
.post-body h2, .post-body h3 { font-family: var(--font-display); }
.post-body p { font-size: 16.5px; }
.post-body ul { padding-left: 22px; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--ink-900);
  color: var(--text-on-ink-dim);
  padding: 44px 0;
  font-size: 14px;
}
.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.site-footer a { color: var(--text-on-ink); text-decoration: none; }
.site-footer a:hover { color: var(--teal); }

/* ---------- Admin ---------- */
.admin-shell { max-width: 760px; margin: 0 auto; padding: 48px 24px; font-family: var(--font-body); }
.admin-shell h1 { font-family: var(--font-display); }
.admin-shell .field { margin-bottom: 18px; }
.admin-shell textarea.raw { min-height: 90px; font-family: var(--font-mono); font-size: 13px; }
.admin-nav { display: flex; gap: 10px; margin-bottom: 24px; flex-wrap: wrap; }
.admin-nav a {
  text-decoration: none;
  font-size: 13.5px;
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--paper-dim);
  color: var(--text-on-paper);
}
table.admin-table { width: 100%; border-collapse: collapse; margin-top: 12px; }
table.admin-table th, table.admin-table td {
  text-align: left; padding: 10px 8px; border-bottom: 1px solid rgba(23,33,47,0.1); font-size: 14.5px;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .site-header .wrap { flex-direction: column; align-items: flex-start; gap: 12px; }
  nav.main-nav { width: 100%; gap: 6px; }
  nav.main-nav a { padding: 7px 12px; font-size: 13.5px; }
  .cta-band { padding: 32px; }
}

@media (max-width: 560px) {
  .hero { padding: 56px 0 64px; }
  section { padding: 52px 0; }
}