/* WISP Brand Handbook — UI system adapted from workbuddy.homes / VitePress */
:root {
  --vp-c-white: #ffffff;
  --vp-c-black: #000000;
  --vp-c-bg: #ffffff;
  --vp-c-bg-alt: #f6f6f7;
  --vp-c-bg-soft: #f6f6f7;
  --vp-c-bg-elv: #ffffff;
  --vp-c-border: #c2c2c4;
  --vp-c-divider: #e2e2e3;
  --vp-c-text-1: #3c3c43;
  --vp-c-text-2: #67676c;
  --vp-c-text-3: #929295;
  --vp-c-brand: #5a6e00;
  --vp-c-brand-1: #4d5f00;
  --vp-c-brand-2: #6b8000;
  --vp-c-brand-3: #8aa600;
  --vp-c-brand-soft: rgba(216, 242, 56, 0.28);
  --accent: #d8f238;
  --accent-ink: #1a1a12;
  --nav-height: 64px;
  --sidebar-width: 272px;
  --outline-width: 224px;
  --max: 1440px;
  --radius: 12px;
  --font: "Inter", "Noto Sans SC", ui-sans-serif, system-ui, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --shadow-1: 0 1px 2px rgba(0,0,0,.04), 0 1px 2px rgba(0,0,0,.06);
  --shadow-2: 0 3px 12px rgba(0,0,0,.07), 0 1px 4px rgba(0,0,0,.07);
  --shadow-3: 0 12px 32px rgba(0,0,0,.1), 0 2px 6px rgba(0,0,0,.08);
}

html.dark {
  --vp-c-bg: #1b1b1f;
  --vp-c-bg-alt: #161618;
  --vp-c-bg-soft: #202127;
  --vp-c-bg-elv: #202127;
  --vp-c-border: #3c3f44;
  --vp-c-divider: #2e2e32;
  --vp-c-text-1: #dfdfd6;
  --vp-c-text-2: #98989f;
  --vp-c-text-3: #6a6a71;
  --vp-c-brand: #d8f238;
  --vp-c-brand-1: #d8f238;
  --vp-c-brand-2: #e4f76a;
  --vp-c-brand-3: #c5de20;
  --vp-c-brand-soft: rgba(216, 242, 56, 0.14);
  --accent-ink: #14140e;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-height) + 24px); }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--vp-c-text-1);
  background: var(--vp-c-bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--vp-c-brand-1); text-decoration: none; }
a:hover { color: var(--vp-c-brand-2); }
code {
  font-family: var(--mono);
  font-size: .875em;
  color: var(--vp-c-brand-1);
  background: var(--vp-c-brand-soft);
  padding: .15em .4em;
  border-radius: 4px;
}
.muted { color: var(--vp-c-text-2); }
.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 100;
  background: var(--accent); color: var(--accent-ink); padding: 8px 12px;
}
.skip-link:focus { left: 8px; top: 8px; }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 50;
  height: var(--nav-height);
  background: color-mix(in srgb, var(--vp-c-bg) 86%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--vp-c-divider);
}
.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 24px;
}
.nav-brand {
  display: flex; align-items: center; gap: 10px;
  color: var(--vp-c-text-1); font-weight: 700; flex-shrink: 0;
}
.nav-logo-mark {
  width: 28px; height: 28px; border-radius: 8px;
  background: var(--accent); color: var(--accent-ink);
  display: grid; place-items: center; font-weight: 800; font-size: 14px;
}
.nav-logo-img {
  width: 28px; height: 28px; display: block; flex-shrink: 0;
  border-radius: 6px; background: #F4F1EA; padding: 2px;
}
html.dark .nav-logo-img {
  background: #2C2C2A;
  filter: invert(1) brightness(1.15);
}
.nav-logo-text em { font-style: normal; font-weight: 500; color: var(--vp-c-text-2); margin-left: 4px; }
.nav-menu {
  display: none; gap: 4px; margin-left: 12px; flex: 1; overflow-x: auto;
}
.nav-menu a {
  color: var(--vp-c-text-2); font-size: 13.5px; font-weight: 500;
  padding: 6px 10px; border-radius: 8px; white-space: nowrap;
}
.nav-menu a:hover, .nav-menu a.active {
  color: var(--vp-c-text-1); background: var(--vp-c-bg-soft);
}
.nav-actions { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.search-btn {
  display: none; align-items: center; gap: 8px;
  height: 36px; padding: 0 12px; border-radius: 8px;
  border: 1px solid var(--vp-c-divider); background: var(--vp-c-bg-alt);
  color: var(--vp-c-text-2); cursor: pointer; font: inherit; font-size: 13px;
}
.search-btn kbd {
  font: 500 11px/1 var(--mono); padding: 3px 6px; border-radius: 4px;
  background: var(--vp-c-bg); border: 1px solid var(--vp-c-divider);
}
.theme-toggle {
  width: 40px; height: 40px; border-radius: 50%;
  border: 1px solid var(--vp-c-divider); background: transparent;
  cursor: pointer; color: var(--vp-c-text-2); position: relative;
}
.theme-toggle .moon { display: none; }
html.dark .theme-toggle .sun { display: none; }
html.dark .theme-toggle .moon { display: inline; }
.hamburger {
  width: 40px; height: 40px; border: 0; background: transparent; cursor: pointer;
  display: grid; place-items: center; gap: 5px;
}
.hamburger span {
  display: block; width: 18px; height: 2px; background: var(--vp-c-text-1); border-radius: 1px;
}
@media (min-width: 960px) {
  .nav-menu { display: flex; }
  .search-btn { display: inline-flex; }
  .hamburger { display: none; }
}

/* Layout */
.layout {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  min-height: calc(100vh - var(--nav-height));
}
@media (min-width: 960px) {
  .layout { grid-template-columns: var(--sidebar-width) minmax(0, 1fr); }
}
@media (min-width: 1280px) {
  .layout { grid-template-columns: var(--sidebar-width) minmax(0, 1fr) var(--outline-width); }
}

/* Sidebar */
.sidebar {
  display: none;
  position: sticky;
  top: var(--nav-height);
  height: calc(100vh - var(--nav-height));
  overflow: auto;
  padding: 24px 16px 32px;
  background: var(--vp-c-bg-alt);
  border-right: 1px solid var(--vp-c-divider);
}
@media (min-width: 960px) { .sidebar { display: block; } }
.sidebar-head { margin-bottom: 16px; padding: 0 8px; }
.badge {
  display: inline-block; font-size: 11px; font-weight: 600; letter-spacing: .04em;
  color: var(--accent-ink); background: var(--accent); padding: 3px 8px; border-radius: 999px;
}
.sidebar-title {
  margin: 10px 0 0; font-size: 12px; font-weight: 600;
  color: var(--vp-c-text-3); letter-spacing: .06em;
}
.sidebar-nav { display: grid; gap: 2px; }
.sidebar-group { margin-top: 14px; }
.sidebar-group-title {
  font-size: 11px; font-weight: 700; color: var(--vp-c-text-3);
  letter-spacing: .08em; padding: 8px 10px 4px; text-transform: uppercase;
}
.sidebar-nav a {
  display: block; padding: 7px 10px; border-radius: 8px;
  color: var(--vp-c-text-2); font-size: 13.5px; font-weight: 500; line-height: 1.4;
}
.sidebar-nav a:hover { background: var(--vp-c-bg); color: var(--vp-c-text-1); }
.sidebar-nav a.active {
  background: var(--vp-c-brand-soft); color: var(--vp-c-brand-1); font-weight: 600;
}
.sidebar-foot {
  margin-top: 28px; padding: 12px; border-radius: 12px;
  background: var(--vp-c-bg); border: 1px solid var(--vp-c-divider);
  display: flex; gap: 10px; align-items: center;
}
.sidebar-foot .avatar { border-radius: 50%; object-fit: cover; }
.sidebar-foot strong { display: block; font-size: 13px; }
.sidebar-foot a { font-size: 12px; }

/* Main */
.main {
  min-width: 0;
  padding: 32px 20px 80px;
}
@media (min-width: 768px) { .main { padding: 40px 36px 100px; } }
@media (min-width: 960px) { .main { padding: 40px 40px 120px; } }

/* Outline */
.outline {
  display: none;
  position: sticky;
  top: var(--nav-height);
  height: calc(100vh - var(--nav-height));
  overflow: auto;
  padding: 48px 16px 32px 8px;
}
@media (min-width: 1280px) { .outline { display: block; } }
.outline-title {
  font-size: 13px; font-weight: 700; margin: 0 0 10px; color: var(--vp-c-text-1);
}
#outline-nav { display: grid; gap: 4px; border-left: 1px solid var(--vp-c-divider); padding-left: 12px; }
#outline-nav a {
  font-size: 12.5px; color: var(--vp-c-text-3); line-height: 1.4; padding: 3px 0;
}
#outline-nav a:hover, #outline-nav a.active { color: var(--vp-c-brand-1); }

/* Hero */
.hero { max-width: 820px; margin-bottom: 48px; }
.eyebrow {
  font-size: 12px; font-weight: 700; letter-spacing: .08em;
  color: var(--vp-c-text-3); margin: 0 0 16px;
}
.hero-title {
  margin: 0;
  font-size: clamp(36px, 6vw, 56px);
  line-height: 1.1; font-weight: 800; letter-spacing: -.03em;
}
.hero-title .clip {
  background: linear-gradient(120deg, #b8d000 0%, #d8f238 40%, #8aa600 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
html.dark .hero-title .clip {
  background: linear-gradient(120deg, #d8f238 0%, #f0ff8a 50%, #a8c420 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-tagline {
  margin: 18px 0 0; max-width: 640px;
  font-size: 18px; font-weight: 500; color: var(--vp-c-text-2); line-height: 1.6;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 44px; padding: 0 22px; border-radius: 999px;
  font-weight: 600; font-size: 14.5px; border: 1px solid transparent; transition: .2s;
}
.btn.brand {
  background: var(--accent); color: var(--accent-ink);
}
.btn.brand:hover { filter: brightness(.96); color: var(--accent-ink); }
.btn.alt {
  background: var(--vp-c-bg-soft); color: var(--vp-c-text-1);
}
.btn.alt:hover { background: var(--vp-c-divider); color: var(--vp-c-text-1); }
.hero-stats {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px;
  margin-top: 40px; max-width: 560px;
}
@media (min-width: 640px) { .hero-stats { grid-template-columns: repeat(4, 1fr); } }
.hero-stats div {
  padding: 14px 12px; border-radius: 12px;
  background: var(--vp-c-bg-soft); border: 1px solid var(--vp-c-divider);
}
.hero-stats strong { display: block; font-size: 22px; font-weight: 800; letter-spacing: -.02em; }
.hero-stats span { font-size: 11px; font-weight: 600; color: var(--vp-c-text-3); letter-spacing: .06em; }

/* Cards */
.feature-grid, .part-grid, .card-grid {
  display: grid; gap: 14px;
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  .feature-grid, .part-grid, .card-grid { grid-template-columns: repeat(2, 1fr); }
}
.feature-card, .part-card, .doc-card {
  padding: 20px 18px; border-radius: var(--radius);
  background: var(--vp-c-bg-elv);
  border: 1px solid var(--vp-c-divider);
  box-shadow: var(--shadow-1);
  transition: border-color .2s, box-shadow .2s, transform .2s;
}
.feature-card:hover, .part-card:hover, .doc-card:hover {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--vp-c-border));
  box-shadow: var(--shadow-2);
}
.feature-kicker, .part-kicker {
  font-size: 11px; font-weight: 700; letter-spacing: .08em; color: var(--vp-c-text-3);
}
.feature-card h3, .part-card h3, .doc-card h3 {
  margin: 8px 0 8px; font-size: 17px; letter-spacing: -.01em;
}
.feature-card p, .part-card p, .doc-card p {
  margin: 0; color: var(--vp-c-text-2); font-size: 14px;
}
.part-card {
  display: block; color: inherit;
  background: linear-gradient(180deg, var(--vp-c-bg-elv), var(--vp-c-bg-soft));
}
.part-card .part-meta {
  margin-top: 14px; font-size: 12px; font-weight: 600; color: var(--vp-c-brand-1);
}
.part-section { margin-top: 56px; }
.section-label {
  font-size: 12px; font-weight: 700; letter-spacing: .08em;
  color: var(--vp-c-text-3); margin: 0 0 8px;
}
.part-section h2, .chapter h2 {
  margin: 0 0 18px; font-size: 28px; letter-spacing: -.02em; line-height: 1.25;
}

.cta-band {
  margin-top: 48px; padding: 28px 24px; border-radius: 16px;
  background: var(--vp-c-bg-soft);
  border: 1px solid var(--vp-c-divider);
  display: flex; flex-wrap: wrap; gap: 16px; align-items: center; justify-content: space-between;
}
.cta-band h2 { margin: 6px 0; font-size: 24px; letter-spacing: -.02em; }
.cta-band p { margin: 0; color: var(--vp-c-text-2); }

/* Chapter docs */
.chapter {
  padding-top: 24px;
  margin-top: 24px;
  border-top: 1px solid var(--vp-c-divider);
  max-width: 760px;
}
.chapter > .chapter-eyebrow {
  font-size: 12px; font-weight: 700; letter-spacing: .08em; color: var(--vp-c-brand-1);
  margin: 0 0 8px;
}
.chapter h1 {
  margin: 0 0 12px; font-size: 34px; letter-spacing: -.025em; line-height: 1.2;
}
.chapter .lead {
  font-size: 17px; color: var(--vp-c-text-2); margin: 0 0 28px; font-weight: 500;
}
.chapter h2 {
  margin: 40px 0 12px; font-size: 22px; padding-top: 8px;
}
.chapter h3 {
  margin: 28px 0 10px; font-size: 16.5px;
}
.chapter p { margin: 0 0 14px; color: var(--vp-c-text-1); }
.chapter ul, .chapter ol { margin: 0 0 16px; padding-left: 1.2em; color: var(--vp-c-text-1); }
.chapter li { margin: 6px 0; }
.chapter blockquote {
  margin: 18px 0; padding: 14px 18px;
  border-left: 3px solid var(--accent);
  background: var(--vp-c-brand-soft);
  border-radius: 0 10px 10px 0;
  color: var(--vp-c-text-1);
}
.chapter blockquote p { margin: 0; font-weight: 500; }

.table-wrap {
  overflow-x: auto; margin: 12px 0 20px;
  border: 1px solid var(--vp-c-divider); border-radius: 10px;
}
table {
  width: 100%; border-collapse: collapse; font-size: 13.5px; min-width: 520px;
}
th, td {
  text-align: left; padding: 10px 12px;
  border-bottom: 1px solid var(--vp-c-divider);
  vertical-align: top;
}
th {
  background: var(--vp-c-bg-soft); font-weight: 600; color: var(--vp-c-text-2); font-size: 12px;
}
tr:last-child td { border-bottom: 0; }

.callout {
  margin: 16px 0 20px; padding: 14px 16px; border-radius: 10px;
  background: var(--vp-c-bg-soft); border: 1px solid var(--vp-c-divider);
  font-size: 14px;
}
.callout.tip { border-color: color-mix(in srgb, var(--accent) 50%, var(--vp-c-border)); background: var(--vp-c-brand-soft); }
.callout strong { display: block; margin-bottom: 4px; }

.phrase-wall {
  display: grid; gap: 10px; margin: 16px 0 24px;
}
.phrase-wall .phrase {
  padding: 14px 16px; border-radius: 10px;
  background: var(--vp-c-bg-alt); border: 1px dashed var(--vp-c-border);
  font-weight: 600; letter-spacing: -.01em;
}
.phrase-wall .phrase small {
  display: block; margin-top: 4px; font-weight: 500; color: var(--vp-c-text-3); font-size: 12px;
}

.color-row {
  display: flex; flex-wrap: wrap; gap: 12px; margin: 12px 0 20px;
}
.swatch {
  width: 120px; border-radius: 10px; overflow: hidden;
  border: 1px solid var(--vp-c-divider); background: var(--vp-c-bg-elv);
}
.swatch .chip { height: 56px; }
.swatch .meta { padding: 8px 10px; font-size: 11px; }
.swatch .meta strong { display: block; font-size: 12px; }

.timeline {
  display: grid; gap: 12px; margin: 12px 0 24px;
}
.timeline-item {
  display: grid; grid-template-columns: 88px 1fr; gap: 12px;
  padding: 14px; border-radius: 12px; border: 1px solid var(--vp-c-divider);
  background: var(--vp-c-bg-soft);
}
.timeline-item .step {
  font-weight: 800; color: var(--accent-ink); background: var(--accent);
  border-radius: 8px; height: fit-content; padding: 6px 8px; text-align: center; font-size: 12px;
}
html.dark .timeline-item .step { color: #14140e; }

.site-footer {
  margin-top: 64px; padding-top: 24px; border-top: 1px solid var(--vp-c-divider);
  font-size: 13px; color: var(--vp-c-text-2);
}
.site-footer p { margin: 0 0 6px; }

/* Mobile drawer */
.mobile-drawer {
  position: fixed; inset: var(--nav-height) 0 0 0; z-index: 40;
  background: var(--vp-c-bg); overflow: auto; padding: 16px 20px 40px;
}
.mobile-drawer[hidden] { display: none; }
.mobile-nav a {
  display: block; padding: 12px 8px; border-bottom: 1px solid var(--vp-c-divider);
  color: var(--vp-c-text-1); font-weight: 500;
}

/* Search */
.search-modal {
  position: fixed; inset: 0; z-index: 80;
  background: rgba(0,0,0,.44); backdrop-filter: blur(2px);
  display: grid; place-items: start center; padding-top: 12vh;
}
.search-modal[hidden] { display: none; }
.search-panel {
  width: min(560px, 92vw); background: var(--vp-c-bg); border: 1px solid var(--vp-c-border);
  border-radius: 14px; box-shadow: var(--shadow-3); overflow: hidden;
}
.search-panel input {
  width: 100%; border: 0; outline: 0; padding: 16px 18px;
  font: inherit; font-size: 16px; background: transparent; color: var(--vp-c-text-1);
  border-bottom: 1px solid var(--vp-c-divider);
}
#search-results { list-style: none; margin: 0; padding: 8px; max-height: 50vh; overflow: auto; }
#search-results li button {
  width: 100%; text-align: left; border: 0; background: transparent; cursor: pointer;
  padding: 10px 12px; border-radius: 8px; color: var(--vp-c-text-1); font: inherit;
}
#search-results li button:hover, #search-results li button.active {
  background: var(--vp-c-brand-soft);
}
#search-results .r-title { font-weight: 600; display: block; }
#search-results .r-snip { font-size: 12.5px; color: var(--vp-c-text-2); }
.search-hint {
  margin: 0; padding: 10px 16px; font-size: 12px; color: var(--vp-c-text-3);
  border-top: 1px solid var(--vp-c-divider);
}

.copy-block {
  position: relative;
  margin: 12px 0 18px;
  background: var(--vp-c-bg-alt);
  border: 1px solid var(--vp-c-divider);
  border-radius: 10px;
  padding: 14px 16px;
  font-family: var(--mono);
  font-size: 13px;
  white-space: pre-wrap;
  color: var(--vp-c-text-1);
  line-height: 1.55;
}
.copy-block .copy-btn {
  position: absolute; top: 8px; right: 8px;
  border: 1px solid var(--vp-c-divider); background: var(--vp-c-bg);
  border-radius: 6px; padding: 4px 8px; font-size: 11px; cursor: pointer;
  color: var(--vp-c-text-2); font-family: var(--font);
}
.copy-block .copy-btn:hover { color: var(--vp-c-text-1); }