/* DevNotes+ — user guide.
   Self-contained stylesheet for the pages under /guide/. It redeclares the
   landing page's design tokens rather than importing them, so editing
   index.html's <style> block can never break the guide (and vice versa).

   Pages are generated from site/pages/*.html by site/build.py — edit the
   fragments and re-run the script, not the files in docs/guide/. */

:root {
  --bg-warm:        #FAF8F5;
  --bg-card:        #FFFFFF;
  --bg-card-alt:    #F3EFE6;
  --navy-950:       #0A0F1D;
  --navy-900:       #0F172A;
  --navy-800:       #1E293B;
  --navy-700:       #334155;

  --text-main:      #1E293B;
  --text-muted:     #64748B;
  --text-light:     #94A3B8;

  --yellow:         #FACC15;
  --yellow-dark:    #EAB308;
  --yellow-pale:    #FEF9C3;
  --yellow-border:  #FDE047;

  --blue:           #3B82F6;
  --blue-pale:      #EFF6FF;
  --blue-border:    #BFDBFE;

  --mint:           #10B981;
  --mint-pale:      #ECFDF5;
  --mint-border:    #A7F3D0;

  --coral:          #F43F5E;
  --coral-pale:     #FFF1F2;
  --coral-border:   #FECDD3;

  --purple:         #A855F7;
  --purple-pale:    #FAF5FF;
  --purple-border:  #E9D5FF;

  --border:         #E2E8F0;
  --border-dark:    #CBD5E1;

  --radius-sm:      8px;
  --radius-md:      14px;
  --radius-lg:      20px;

  --font-sans:      'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono:      "Cascadia Code", Consolas, monospace;

  --shadow-sm:      0 2px 4px rgba(15, 23, 42, 0.04);
  --shadow-md:      0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
  --transition:     all 0.25s cubic-bezier(0.16, 1, 0.3, 1);

  --nav-h:          54px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  background: var(--bg-warm);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; }

.container { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 24px; }

/* ── Nav ─────────────────────────────────────────────────────────────────── */
header.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(250, 248, 245, 0.85);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
}
.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 700;
  color: var(--navy-900);
  letter-spacing: -0.02em;
}
/* The extension's own icon, not a box drawn to look like one. */
.logo-badge {
  width: 28px; height: 28px;
  display: block;
  flex-shrink: 0;
}
.nav-links { display: flex; align-items: center; gap: 2px; }
.nav-link {
  padding: 7px 12px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.nav-link:hover { color: var(--navy-900); background: rgba(15, 23, 42, 0.04); }
.nav-link.current { color: var(--navy-900); background: rgba(15, 23, 42, 0.06); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn svg { width: 15px; height: 15px; flex-shrink: 0; }
.btn-primary { background: var(--yellow); color: var(--navy-900); border-color: var(--yellow-dark); }
.btn-primary:hover { background: var(--yellow-dark); }
.btn-ghost { background: var(--bg-card); color: var(--navy-900); border-color: var(--border-dark); }
.btn-ghost:hover { border-color: var(--navy-700); }

/* ── Layout ──────────────────────────────────────────────────────────────── */
.guide-shell {
  display: grid;
  grid-template-columns: 236px minmax(0, 1fr);
  gap: 56px;
  align-items: start;
  padding: 44px 0 96px;
}

.guide-sidebar { position: sticky; top: calc(var(--nav-h) + 28px); }
.guide-sidebar .sb-heading {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-weight: 800;
  color: var(--text-light);
  margin: 0 0 10px 12px;
}
.guide-sidebar ol { list-style: none; }
.guide-sidebar li { margin-bottom: 1px; }
.guide-sidebar a {
  display: block;
  padding: 7px 12px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text-muted);
  transition: var(--transition);
}
.guide-sidebar a:hover { color: var(--navy-900); background: rgba(15, 23, 42, 0.04); }
.guide-sidebar a[aria-current="page"] {
  color: var(--navy-900);
  font-weight: 700;
  background: var(--yellow-pale);
  box-shadow: inset 2px 0 0 var(--yellow-dark);
}

/* ── Prose ───────────────────────────────────────────────────────────────── */
.guide-body { max-width: 760px; }

.breadcrumb { font-size: 13px; color: var(--text-light); margin-bottom: 14px; }
.breadcrumb a:hover { color: var(--navy-900); }
.breadcrumb span { margin: 0 6px; }

.guide-body h1 {
  font-size: clamp(30px, 4.4vw, 42px);
  line-height: 1.12;
  letter-spacing: -0.03em;
  font-weight: 800;
  color: var(--navy-900);
  margin-bottom: 14px;
}
.guide-lede {
  font-size: 18px;
  line-height: 1.6;
  color: var(--text-muted);
  margin-bottom: 40px;
}
.guide-body h2 {
  font-size: 25px;
  letter-spacing: -0.02em;
  font-weight: 700;
  color: var(--navy-900);
  margin: 52px 0 14px;
  scroll-margin-top: calc(var(--nav-h) + 20px);
}
.guide-body h3 {
  font-size: 17.5px;
  font-weight: 700;
  color: var(--navy-900);
  margin: 32px 0 10px;
  scroll-margin-top: calc(var(--nav-h) + 20px);
}
.guide-body p { margin-bottom: 17px; }
.guide-body ul, .guide-body ol { margin: 0 0 17px 22px; }
.guide-body li { margin-bottom: 7px; }
.guide-body strong { font-weight: 700; color: var(--navy-900); }
.guide-body a:not(.btn):not(.card-link) {
  color: var(--navy-900);
  font-weight: 600;
  border-bottom: 2px solid var(--yellow-border);
}
.guide-body a:not(.btn):not(.card-link):hover { background: var(--yellow-pale); }

kbd {
  font-family: var(--font-sans);
  font-size: 12.5px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 6px;
  background: var(--bg-card);
  border: 1px solid var(--border-dark);
  box-shadow: 0 1.5px 0 var(--border-dark);
  color: var(--navy-900);
  white-space: nowrap;
}

code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--bg-card-alt);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 1.5px 5px;
  color: var(--navy-800);
}

pre {
  background: var(--navy-950);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  overflow-x: auto;
  margin-bottom: 20px;
  border: 1px solid var(--navy-800);
}
pre code {
  background: none;
  border: none;
  padding: 0;
  color: #D9E2EC;
  font-size: 13px;
  line-height: 1.7;
}
pre .c { color: #7B8AA1; font-style: italic; }
pre .s { color: #E3B341; }
pre .k { color: #C99BF5; }

.table-wrap { overflow-x: auto; margin-bottom: 22px; }
table { border-collapse: collapse; width: 100%; font-size: 14.5px; }
th, td {
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
th {
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-light);
  font-weight: 800;
  border-bottom: 1px solid var(--border-dark);
}
td code { white-space: nowrap; }

.callout {
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin: 0 0 22px;
  font-size: 14.5px;
  border: 1px solid;
}
.callout p:last-child { margin-bottom: 0; }
.callout .callout-label {
  display: block;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  font-weight: 800;
  margin-bottom: 5px;
}
.callout-note { background: var(--blue-pale); border-color: var(--blue-border); }
.callout-note .callout-label { color: var(--blue); }
.callout-warn { background: var(--coral-pale); border-color: var(--coral-border); }
.callout-warn .callout-label { color: var(--coral); }
.callout-tip { background: var(--mint-pale); border-color: var(--mint-border); }
.callout-tip .callout-label { color: var(--mint); }

.steps { list-style: none; counter-reset: step; margin: 0 0 24px !important; }
.steps > li {
  counter-increment: step;
  position: relative;
  padding-left: 44px;
  margin-bottom: 20px;
}
.steps > li::before {
  content: counter(step);
  position: absolute;
  left: 0; top: -1px;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--yellow);
  border: 1.2px solid var(--navy-900);
  box-shadow: 1.5px 2px 0 var(--navy-900);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 800; color: var(--navy-900);
}

/* Card grid, used on the guide index */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(268px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}
.card-link {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
.card-link:hover {
  border-color: var(--navy-900);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.card-link .t {
  display: block;
  font-size: 16px;
  font-weight: 700;
  color: var(--navy-900);
  margin-bottom: 5px;
  letter-spacing: -0.01em;
}
.card-link .d { display: block; font-size: 14px; color: var(--text-muted); line-height: 1.55; }

.next-nav {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 60px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}
.next-nav a {
  flex: 1 1 240px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 15px 18px;
  transition: var(--transition);
}
.next-nav a:hover { border-color: var(--navy-900); }
.next-nav .dir {
  display: block;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 800;
  color: var(--text-light);
  margin-bottom: 3px;
}
.next-nav .t { display: block; font-weight: 700; color: var(--navy-900); font-size: 15px; }

/* ── Footer ──────────────────────────────────────────────────────────────── */
footer {
  background: var(--navy-950);
  color: #FFF;
  padding: 48px 0 40px;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.footer-brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 15px; }
.footer-links { display: flex; gap: 22px; flex-wrap: wrap; font-size: 14px; }
.footer-links a { color: rgba(255, 255, 255, 0.62); transition: var(--transition); }
.footer-links a:hover { color: #FFF; }
.footer-legal {
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid var(--navy-800);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.42);
}

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 940px) {
  .guide-shell { grid-template-columns: 1fr; gap: 0; padding-top: 28px; }
  .guide-sidebar {
    position: static;
    margin-bottom: 34px;
    padding-bottom: 26px;
    border-bottom: 1px solid var(--border);
  }
  .guide-sidebar ol {
    display: flex;
    gap: 6px;
    overflow-x: auto;
    padding-bottom: 4px;
  }
  .guide-sidebar li { margin: 0; }
  .guide-sidebar a { white-space: nowrap; }
  .guide-sidebar a[aria-current="page"] { box-shadow: none; }
  .nav-links { display: none; }
}

@media (max-width: 560px) {
  .container { padding: 0 18px; }
  .guide-body h2 { font-size: 22px; }
  .nav-actions .btn span { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
  .card-link:hover, .next-nav a:hover { transform: none; }
}