/* ==============================================================
   onenorthdev — terminal aesthetic, shared stylesheet
   ============================================================== */

:root {
  --bg: #0E1212;
  --bg-2: #141919;
  --bg-3: #1A2020;
  --text: #C8D3CB;
  --text-2: rgba(200, 211, 203, 0.7);
  --text-3: rgba(200, 211, 203, 0.45);
  --text-4: rgba(200, 211, 203, 0.25);
  --green: #5BE5A0;
  --green-d: #2BB075;
  --amber: #FFB85A;
  --pink: #FF7BBA;
  --blue: #6BC2FF;
  --red: #FF6B6B;
  --rule: rgba(200, 211, 203, 0.18);
  --rule-dashed: rgba(200, 211, 203, 0.22);
  --max: 1200px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  font-size: 14px;
  line-height: 1.65;
  font-feature-settings: 'ss02' on, 'cv11' on;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }
::selection { background: var(--green); color: var(--bg); }

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 40px;
}
@media (max-width: 720px) { .container { padding: 0 20px; } }

/* ─── Type helpers ─── */
.t-comment { color: var(--text-3); }
.t-comment::before { content: '// '; color: var(--green); opacity: 0.7; }
.t-prompt::before { content: '$ '; color: var(--green); opacity: 0.7; }
.t-green { color: var(--green); }
.t-amber { color: var(--amber); }
.t-pink { color: var(--pink); }
.t-blue { color: var(--blue); }
.t-dim { color: var(--text-3); }

.eyebrow {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-3);
  font-weight: 400;
}

/* ─── Nav ─── */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(14, 18, 18, 0.85);
  backdrop-filter: blur(12px) saturate(140%);
  -webkit-backdrop-filter: blur(12px) saturate(140%);
  border-bottom: 1px dashed var(--rule-dashed);
}
.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 18px 40px;
  display: flex; align-items: center; justify-content: space-between;
}
.brand {
  font-size: 14px;
  color: var(--green);
  display: inline-flex; align-items: center; gap: 8px;
}
.brand::before { content: '$'; color: var(--text-3); }
.brand .blink {
  display: inline-block;
  width: 8px; height: 14px;
  background: var(--green);
  vertical-align: -2px;
  animation: blink 1.1s steps(2) infinite;
}
@keyframes blink { 50% { opacity: 0; } }
.nav-links {
  display: flex; gap: 28px;
  font-size: 13px;
}
.nav-links a {
  color: var(--text-2);
  transition: color 0.15s;
  position: relative;
}
.nav-links a::before {
  content: '/'; margin-right: 4px; color: var(--text-4);
}
.nav-links a:hover { color: var(--green); }
@media (max-width: 720px) {
  .nav-links { display: none; }
  .nav-inner { padding: 16px 20px; }
}

/* ─── Document chrome (for sub pages) ─── */
.doc-head {
  border-bottom: 1px dashed var(--rule-dashed);
  padding: 64px 0 48px;
}
.doc-head .meta-line {
  font-size: 12px;
  color: var(--text-3);
  margin-bottom: 24px;
}
.doc-head .meta-line::before { content: '// '; color: var(--green); opacity: 0.7; }
.doc-head h1 {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
  font-size: clamp(40px, 6vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin: 0 0 16px;
  color: #F0F4F1;
}
.doc-head h1 .acc { color: var(--green); }
.doc-head .doc-meta {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
  display: flex; gap: 24px; flex-wrap: wrap;
}
.doc-head .doc-meta strong { color: var(--text); font-weight: 500; }

/* ─── Document body ─── */
.doc {
  padding: 56px 0 96px;
  max-width: 820px;
  margin: 0 auto;
}
.doc h2 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: #F0F4F1;
  margin: 56px 0 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.doc h2::before {
  content: '#';
  color: var(--green);
  font-weight: 500;
}
.doc h2:first-child { margin-top: 0; }
.doc h3 {
  font-size: 14px;
  font-weight: 500;
  color: var(--green);
  margin: 28px 0 8px;
}
.doc h3::before { content: '> '; color: var(--text-3); }
.doc p, .doc li {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-2);
  text-wrap: pretty;
}
.doc p { margin: 0 0 18px; }
.doc ul { margin: 0 0 18px; padding-left: 0; list-style: none; }
.doc li { padding-left: 24px; position: relative; margin-bottom: 8px; }
.doc li::before {
  content: '·';
  position: absolute; left: 8px; top: 0;
  color: var(--green);
}
.doc a {
  color: var(--green);
  border-bottom: 1px dashed rgba(91, 229, 160, 0.4);
}
.doc a:hover { border-bottom-style: solid; }
.doc strong { color: var(--text); font-weight: 500; }
.doc code, .doc .mono {
  font-family: 'JetBrains Mono', monospace;
  background: var(--bg-2);
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 13px;
  border: 1px solid var(--rule);
  color: var(--amber);
}

/* ─── TOC ─── */
.toc {
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 20px 24px;
  margin: 32px 0 48px;
  background: var(--bg-2);
}
.toc-head {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 12px;
}
.toc-head::before { content: '// '; color: var(--green); opacity: 0.7; }
.toc ol {
  margin: 0; padding-left: 0;
  list-style: none;
  counter-reset: toc;
}
.toc li {
  font-size: 13px;
  padding-left: 32px;
  position: relative;
  line-height: 2;
  counter-increment: toc;
  color: var(--text-2);
}
.toc li::before {
  content: counter(toc, decimal-leading-zero);
  position: absolute; left: 0; top: 0;
  color: var(--text-3);
}
.toc a { color: var(--text); border: none; }
.toc a:hover { color: var(--green); }

/* ─── Footer ─── */
footer {
  background: var(--bg-2);
  border-top: 1px dashed var(--rule-dashed);
  padding: 48px 0 32px;
  margin-top: 96px;
}
.foot-grid {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 40px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}
@media (max-width: 800px) {
  .foot-grid { grid-template-columns: 1fr 1fr; gap: 32px; padding: 0 20px; }
}
.foot-grid h4 {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
  margin: 0 0 14px;
  font-weight: 400;
}
.foot-grid h4::before { content: '// '; color: var(--green); opacity: 0.7; }
.foot-grid a, .foot-grid p {
  display: block;
  color: var(--text-2);
  font-size: 13px;
  margin-bottom: 6px;
  line-height: 1.6;
}
.foot-grid a:hover { color: var(--green); }
.foot-bar {
  max-width: var(--max);
  margin: 40px auto 0;
  padding: 24px 40px 0;
  border-top: 1px dashed var(--rule-dashed);
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 16px;
  font-size: 11px;
  color: var(--text-3);
  letter-spacing: 0.06em;
}
@media (max-width: 800px) { .foot-bar { padding: 24px 20px 0; } }
.foot-bar .status-pip {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%;
  background: var(--green); box-shadow: 0 0 10px var(--green);
  margin-right: 6px; vertical-align: 0;
  animation: blink 2s ease-in-out infinite;
}

/* ============================================
   Mobile (≤640px)
   ============================================ */
@media (max-width: 640px) {
  body { font-size: 13.5px; }

  .container { padding: 0 18px; }
  .nav-inner { padding: 14px 18px; }
  .brand { font-size: 13px; }

  .doc-head { padding: 48px 0 32px; }
  .doc-head h1 { font-size: 34px; line-height: 1.1; }
  .doc-head .doc-meta { gap: 12px; font-size: 10.5px; }
  .doc-head .meta-line { font-size: 11.5px; margin-bottom: 18px; }

  .doc { padding: 40px 0 64px; }
  .doc h2 { font-size: 19px; margin: 40px 0 12px; gap: 10px; }
  .doc h2::before { font-size: 18px; }
  .doc h3 { font-size: 13.5px; margin-top: 22px; }
  .doc p, .doc li { font-size: 14px; line-height: 1.7; }
  .doc li { padding-left: 18px; }
  .doc li::before { left: 4px; }

  .toc { padding: 16px 18px; margin: 24px 0 36px; }
  .toc li { padding-left: 28px; font-size: 12.5px; line-height: 1.9; }

  footer { padding: 40px 0 24px; margin-top: 64px; }
  .foot-grid { grid-template-columns: 1fr; gap: 28px; padding: 0 18px; }
  .foot-bar { padding: 20px 18px 0; flex-direction: column; align-items: flex-start; gap: 6px; font-size: 10.5px; }
}