/* PerkUp Internal Wiki — shared design tokens + components
   Single source of truth for color, type, spacing, components.
   Every page imports this file. */

:root {
  --color-bg: #0d0e10;
  --color-bg-elev: #16171b;
  --color-bg-elev-2: #1c1d22;
  --color-text: #ffffff;
  /* bumped from 0.65/0.42 for legibility */
  --color-text-muted: rgba(255,255,255,0.82);
  --color-text-subtle: rgba(255,255,255,0.58);
  --color-accent: #5C33FF;
  --color-accent-soft: rgba(92,51,255,0.20);
  --color-accent-text: #d4c4ff;
  --color-border: rgba(255,255,255,0.10);
  --color-border-strong: rgba(255,255,255,0.18);
  --color-border-hover: rgba(255,255,255,0.28);
  --font-stack: -apple-system, "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-mono: "SF Mono", Menlo, Consolas, "Roboto Mono", monospace;
  --max-width: 1180px;
  --max-content: 760px;
  --header-h: 60px;
}
:root[data-theme="light"] {
  --color-bg: #ffffff;
  --color-bg-elev: #f6f6f9;
  --color-bg-elev-2: #ececf2;
  --color-text: #0d0e10;
  /* bumped from 0.65/0.45 for legibility on white */
  --color-text-muted: rgba(13,14,16,0.78);
  --color-text-subtle: rgba(13,14,16,0.58);
  --color-accent: #5C33FF;
  --color-accent-soft: rgba(92,51,255,0.10);
  --color-accent-text: #3d1ca8;
  --color-border: rgba(13,14,16,0.12);
  --color-border-strong: rgba(13,14,16,0.22);
  --color-border-hover: rgba(13,14,16,0.32);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-stack);
  background: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  transition: background 0.2s ease, color 0.2s ease;
}
a { color: inherit; }
::selection { background: var(--color-accent); color: #fff; }

/* ====== TOP NAV ====== */
.topnav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--color-bg) 92%, transparent);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--color-border);
}
.topnav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--color-text);
}
.brand-mark {
  display: inline-block;
  width: 86px;
  height: 24px;
  background: currentColor;
  -webkit-mask: url('/_assets/perkup-wordmark.svg') center/contain no-repeat;
  mask: url('/_assets/perkup-wordmark.svg') center/contain no-repeat;
}
.brand-pill {
  font-size: 11px;
  font-weight: 600;
  color: var(--color-accent-text);
  background: var(--color-accent-soft);
  padding: 3px 8px;
  border-radius: 999px;
  letter-spacing: 0.4px;
  text-transform: uppercase;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: 12px;
  flex: 1;
}
.nav-link {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  padding: 6px 10px;
  border-radius: 6px;
  transition: color 0.15s, background 0.15s;
}
.nav-link:hover { color: var(--color-text); background: var(--color-bg-elev); }
.nav-link.active { color: var(--color-accent-text); background: var(--color-accent-soft); }
.nav-actions { display: flex; align-items: center; gap: 8px; }

.icon-btn {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border-strong);
  background: transparent;
  color: var(--color-text);
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.icon-btn:hover { background: var(--color-accent-soft); border-color: var(--color-accent); color: var(--color-accent-text); }
.icon-btn svg { width: 16px; height: 16px; }

.theme-toggle .ic-system, .theme-toggle .ic-dark, .theme-toggle .ic-light { display: none; }
.theme-toggle[data-pref="system"] .ic-system { display: block; }
.theme-toggle[data-pref="dark"] .ic-dark { display: block; }
.theme-toggle[data-pref="light"] .ic-light { display: block; }

.auth-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 10px 5px 5px;
  border: 1px solid var(--color-border-strong);
  border-radius: 999px;
  background: transparent;
  color: var(--color-text);
  cursor: pointer;
  font-family: inherit;
  font-size: 13px;
  transition: background 0.15s, border-color 0.15s;
}
.auth-chip:hover { background: var(--color-bg-elev); border-color: var(--color-border-hover); }
.auth-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: linear-gradient(135deg, #5C33FF, #c7b6ff);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.3px;
}
.auth-name { font-weight: 500; max-width: 140px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.auth-menu { position: relative; }
.auth-pop {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 240px;
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border-strong);
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.25);
  padding: 6px;
  display: none;
  z-index: 60;
}
.auth-menu.open .auth-pop { display: block; }
.auth-pop-row {
  padding: 10px 12px;
  border-bottom: 1px solid var(--color-border);
  font-size: 12px;
  color: var(--color-text-muted);
}
.auth-pop-row strong { color: var(--color-text); font-size: 13px; display: block; margin-bottom: 2px; }
.auth-pop-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 6px;
  color: var(--color-text);
  text-decoration: none;
  font-size: 13px;
  cursor: pointer;
}
.auth-pop-item:hover { background: var(--color-bg-elev-2); }
.auth-pop-item svg { width: 14px; height: 14px; }

/* ====== LAYOUT ====== */
.layout {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 40px 24px 80px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 48px;
}
.main { min-width: 0; max-width: var(--max-content); }
@media (max-width: 960px) {
  .layout { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .toc { display: none; }
  .nav-links { display: none; }
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--color-text-subtle);
  margin-bottom: 24px;
}
.breadcrumb a { color: inherit; text-decoration: none; }
.breadcrumb a:hover { color: var(--color-text); }
.breadcrumb svg { width: 12px; height: 12px; opacity: 0.6; }

/* ====== HERO ====== */
.hero { margin-bottom: 48px; }
.hero h1 {
  font-size: 44px;
  font-weight: 800;
  letter-spacing: -1.4px;
  margin: 0 0 10px;
  line-height: 1.05;
}
.hero h1 .dot { color: var(--color-accent); }
.hero .lede {
  font-size: 16px;
  color: var(--color-text-muted);
  margin: 0;
  max-width: 580px;
  line-height: 1.55;
}

/* ====== TYPOGRAPHY / PROSE ====== */
h2.section {
  font-size: 12px;
  font-weight: 700;
  color: var(--color-accent-text);
  text-transform: uppercase;
  letter-spacing: 1.8px;
  margin: 56px 0 18px;
  display: flex;
  align-items: center;
  gap: 8px;
}
h2.section svg { width: 14px; height: 14px; }
section + section h2.section,
main > section:first-child h2.section { margin-top: 32px; }
main > section + section { margin-top: 8px; }
.stage + .stage, .principle + .principle { margin-top: 18px; }

.prose {
  font-size: 14.5px;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin: 0 0 14px;
}
.prose + .prose { margin-top: 0; }
.prose strong { color: var(--color-text); font-weight: 700; }
.prose code, code.inline, p code {
  font-family: var(--font-mono);
  font-size: 12px;
  background: var(--color-accent-soft);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--color-accent-text);
}

.checklist, .numbered {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.7;
  padding-left: 22px;
  margin: 0 0 14px;
}
.checklist { list-style: none; padding-left: 0; }
.checklist li {
  position: relative;
  padding: 6px 0 6px 24px;
  border-bottom: 1px dashed var(--color-border);
}
.checklist li:last-child { border-bottom: none; }
.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-accent-soft);
  border: 2px solid var(--color-accent);
}
.checklist code, .numbered code {
  font-family: var(--font-mono);
  font-size: 12px;
  background: var(--color-accent-soft);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--color-accent-text);
}
.numbered li { padding: 4px 0; }

.code-block {
  font-family: var(--font-mono);
  font-size: 12px;
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 14px 16px;
  color: var(--color-text);
  overflow-x: auto;
  line-height: 1.55;
  margin: 12px 0 16px;
  white-space: pre;
}

.source-note {
  font-size: 11px;
  color: var(--color-text-subtle);
  border-top: 1px dashed var(--color-border);
  padding-top: 16px;
  margin-top: 48px;
  line-height: 1.6;
}
.source-note code {
  font-family: var(--font-mono);
  background: var(--color-accent-soft);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--color-accent-text);
}

/* ====== SECTION CARDS ====== */
.section-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
}
.section-card {
  position: relative;
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 18px;
  text-decoration: none;
  color: var(--color-text);
  transition: border-color 0.18s, transform 0.18s, background 0.18s;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 110px;
}
.section-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
  background: var(--color-bg-elev-2);
}
.section-card .ic {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--color-accent-soft);
  color: var(--color-accent-text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.section-card .ic svg { width: 18px; height: 18px; }
.section-card .name { font-size: 15px; font-weight: 700; margin: 0; }
.section-card .desc { font-size: 13px; color: var(--color-text-muted); margin: 0; }

/* ====== PUBLISHED LIST ====== */
ul.flat { list-style: none; padding: 0; margin: 0; }
ul.flat li { border-top: 1px solid var(--color-border); }
ul.flat li:last-child { border-bottom: 1px solid var(--color-border); }
ul.flat a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 14px 0;
  color: var(--color-text);
  text-decoration: none;
}
ul.flat a:hover .title { color: var(--color-accent-text); }
ul.flat .ic-wrap { display: flex; align-items: center; gap: 12px; }
ul.flat .ic-wrap svg { width: 16px; height: 16px; color: var(--color-text-subtle); }
ul.flat .title { font-size: 14px; font-weight: 600; }
ul.flat .desc { font-size: 12px; color: var(--color-text-subtle); }

/* ====== QUICK LINKS ====== */
.quick-links { display: flex; flex-wrap: wrap; gap: 8px; }
.quick-group { margin-bottom: 20px; }
.quick-group:last-child { margin-bottom: 0; }
.quick-group-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1.4px;
  color: var(--color-text-subtle);
  font-weight: 700;
  margin-bottom: 8px;
}
.quick-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--color-text-muted);
  text-decoration: none;
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border);
  padding: 6px 12px;
  border-radius: 999px;
  transition: color 0.15s, border-color 0.15s;
}
.quick-link:hover { color: var(--color-accent-text); border-color: var(--color-accent); }
.quick-link svg { width: 12px; height: 12px; opacity: 0.6; }

/* ====== CALLOUT ====== */
.callout {
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  border-radius: 8px;
  padding: 22px 28px;
  margin: 24px 0;
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.65;
}
.callout > *:first-child { margin-top: 0; }
.callout > *:last-child { margin-bottom: 0; }
.callout strong { color: var(--color-text); }
.callout code {
  font-family: var(--font-mono);
  font-size: 12px;
  background: var(--color-accent-soft);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--color-accent-text);
}

/* ====== TOC ====== */
.toc {
  position: sticky;
  top: calc(var(--header-h) + 24px);
  align-self: start;
  border-left: 1px solid var(--color-border);
  padding-left: 18px;
}
.toc-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--color-text-subtle);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 12px;
}
.toc ul { list-style: none; padding: 0; margin: 0; }
.toc li { margin-bottom: 6px; }
.toc a {
  display: block;
  font-size: 13px;
  color: var(--color-text-muted);
  text-decoration: none;
  padding: 4px 0;
  border-left: 2px solid transparent;
  padding-left: 10px;
  margin-left: -12px;
  transition: color 0.15s, border-color 0.15s;
}
.toc a:hover { color: var(--color-text); }
.toc a.active { color: var(--color-accent-text); border-color: var(--color-accent); }

/* ====== FOOTER ====== */
footer.site-footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-elev);
  margin-top: 80px;
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 24px 28px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
}
@media (max-width: 760px) {
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
}
.footer-brand .brand-mark { width: 100px; height: 28px; }
.footer-tagline { font-size: 12px; color: var(--color-text-subtle); margin-top: 14px; max-width: 280px; line-height: 1.55; }
.footer-col h3 {
  font-size: 11px;
  font-weight: 700;
  color: var(--color-text-subtle);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin: 0 0 14px;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: 8px; }
.footer-col a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 13px;
  transition: color 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-col a:hover { color: var(--color-text); }
.footer-col a svg { width: 11px; height: 11px; opacity: 0.5; }
.footer-meta {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 18px 24px;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--color-text-subtle);
  flex-wrap: wrap;
}
.footer-meta a { color: inherit; text-decoration: none; }
.footer-meta a:hover { color: var(--color-text); }