/* ============================================================
   Bold Berry — Spatial Dashboard design system
   Palette: caramel · blush · berry velvet · deepest violet
   ============================================================ */

:root {
  /* Core palette */
  --c-caramel:        #d99a5b;
  --c-caramel-soft:   #f0c498;
  --c-blush:          #f7d8d8;
  --c-blush-light:    #fdf1ef;
  --c-blush-mist:     #fbf6f4;
  --c-berry:          #a3265b;
  --c-berry-deep:     #7d1c47;
  --c-violet:         #2d1239;
  --c-violet-soft:    #4a2058;
  --c-ink:            #2a1330;
  --c-ink-soft:       #5b3a5e;
  --c-muted:          #806680;
  --c-paper:          #fffaf7;
  --c-paper-tint:     #fdf3ee;
  --c-line:           #ecd6cf;
  --c-line-soft:      #f4e4dd;

  /* Functional */
  --bg-page:          var(--c-paper);
  --bg-surface:       #ffffff;
  --bg-surface-2:     var(--c-blush-mist);
  --bg-code:          #fdf6f1;
  --bg-inline-code:   #f8e9e1;
  --color-text:       var(--c-ink);
  --color-text-soft:  var(--c-ink-soft);
  --color-text-muted: var(--c-muted);
  --color-heading:    var(--c-violet);
  --color-link:       var(--c-berry);
  --color-link-hover: var(--c-berry-deep);
  --color-border:     var(--c-line);
  --color-border-soft:var(--c-line-soft);

  /* Accents (icons) */
  --accent-1: #d99a5b; /* caramel */
  --accent-2: #d3578a; /* pink-berry */
  --accent-3: #a3265b; /* berry */
  --accent-4: #6c2a8c; /* violet */
  --accent-5: #2d1239; /* deepest violet */

  /* Type */
  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  --font-display: "Source Serif Pro", "Noto Serif", Georgia, "Times New Roman", serif;
  --font-mono: ui-monospace, "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;

  /* Sizing */
  --header-h: 68px;
  --container-w: 1280px;
  --container-wide-w: 1480px;
  --content-w: 1100px;
  --radius-sm: 6px;
  --radius:    12px;
  --radius-lg: 18px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(45, 18, 57, 0.06), 0 1px 3px rgba(45, 18, 57, 0.06);
  --shadow:    0 4px 16px rgba(45, 18, 57, 0.08), 0 2px 6px rgba(45, 18, 57, 0.05);
  --shadow-lg: 0 16px 48px rgba(45, 18, 57, 0.14), 0 6px 16px rgba(45, 18, 57, 0.06);

  --transition: 180ms cubic-bezier(.2, .8, .2, 1);
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  background:
    radial-gradient(1200px 600px at 90% -20%, rgba(217, 154, 91, 0.10), transparent 60%),
    radial-gradient(900px 600px at -10% 10%, rgba(163, 38, 91, 0.07), transparent 60%),
    var(--bg-page);
  color: var(--color-text);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Anchor offset for sticky header */
:where(h1, h2, h3, h4, h5, h6)[id] {
  scroll-margin-top: calc(var(--header-h) + 16px);
}

img, svg, video { max-width: 100%; height: auto; display: block; }

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 28px;
}
.container--wide { max-width: var(--container-wide-w); }
.container--content { max-width: var(--content-w); }

main { flex: 1 0 auto; padding: 40px 0 80px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255, 250, 247, 0.85);
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--color-border-soft);
}
.site-header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--color-heading);
  font-weight: 700;
  letter-spacing: -0.01em;
}
.brand:hover { color: var(--color-link-hover); }
.brand__logo { width: 36px; height: 36px; display: block; }
.brand__name {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.brand__name strong { font-size: 16px; font-weight: 700; }
.brand__name span { font-size: 11.5px; color: var(--color-text-muted); font-weight: 500; letter-spacing: 0.02em; }

.nav { display: flex; align-items: center; gap: 4px; }
.nav__list {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  padding: 0;
  margin: 0;
}
.nav__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  color: var(--color-text-soft);
  text-decoration: none;
  font-weight: 600;
  font-size: 14.5px;
  transition: var(--transition);
  white-space: nowrap;
}
.nav__link:hover { color: var(--c-berry); background: var(--c-blush-light); }
.nav__link[aria-current="page"],
.nav__link.is-active {
  color: var(--c-violet);
  background: var(--c-blush);
}
.nav__link svg { width: 16px; height: 16px; flex-shrink: 0; }

.nav__toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--c-violet);
}
.nav__toggle:hover { background: var(--c-blush-light); }

@media (max-width: 880px) {
  .nav__toggle { display: inline-flex; }
  .nav__list {
    position: absolute;
    top: var(--header-h);
    right: 16px;
    left: 16px;
    flex-direction: column;
    align-items: stretch;
    background: var(--bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 8px;
    gap: 2px;
    display: none;
  }
  .nav__list.is-open { display: flex; }
  .nav__link { justify-content: flex-start; padding: 12px 14px; }
}

/* ---------- Footer ---------- */
.site-footer {
  margin-top: auto;
  background: var(--c-violet);
  color: var(--c-blush);
  padding: 56px 0 32px;
}
.site-footer a { color: var(--c-blush); text-decoration: none; }
.site-footer a:hover { color: var(--c-caramel-soft); }
.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 36px;
}
@media (max-width: 880px) {
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}
@media (max-width: 520px) {
  .footer__grid { grid-template-columns: 1fr; }
}
.footer__brand p { color: rgba(247, 216, 216, 0.78); margin: 12px 0 0; font-size: 14.5px; }
.footer__title {
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-caramel-soft);
  margin: 0 0 14px;
}
.footer__list { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; font-size: 14.5px; }
.footer__bottom {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid rgba(247, 216, 216, 0.18);
  font-size: 13px;
  color: rgba(247, 216, 216, 0.7);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 64px 0 56px;
  overflow: hidden;
}
.hero__inner { display: grid; grid-template-columns: 1.4fr 1fr; gap: 56px; align-items: center; }
@media (max-width: 980px) { .hero__inner { grid-template-columns: 1fr; gap: 32px; } }

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--c-blush);
  color: var(--c-berry-deep);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.hero__title {
  margin: 16px 0 16px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.1rem, 1.2rem + 3.5vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--c-violet);
}
.hero__title .gradient {
  background: linear-gradient(120deg, var(--c-berry), var(--c-caramel) 60%, var(--c-berry-deep));
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
}
.hero__lede {
  font-size: clamp(1.02rem, 0.9rem + 0.35vw, 1.18rem);
  color: var(--color-text-soft);
  margin: 0 0 12px;
  max-width: 60ch;
}
.hero__lede + .hero__lede { margin-top: 8px; }
.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hero__visual {
  position: relative;
  aspect-ratio: 1 / 1;
  max-width: 420px;
  margin: 0 auto;
}
.hero__visual svg { width: 100%; height: 100%; filter: drop-shadow(0 18px 40px rgba(163, 38, 91, 0.18)); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; flex-shrink: 0; }
.btn--primary {
  background: linear-gradient(135deg, var(--c-berry) 0%, var(--c-berry-deep) 100%);
  color: #fff;
  box-shadow: 0 8px 22px rgba(163, 38, 91, 0.28);
}
.btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 30px rgba(163, 38, 91, 0.34);
}
.btn--ghost {
  background: var(--bg-surface);
  color: var(--c-violet);
  border-color: var(--color-border);
}
.btn--ghost:hover {
  border-color: var(--c-berry);
  color: var(--c-berry);
  transform: translateY(-1px);
}
.btn--caramel {
  background: linear-gradient(135deg, var(--c-caramel-soft), var(--c-caramel));
  color: var(--c-violet);
  box-shadow: 0 8px 22px rgba(217, 154, 91, 0.26);
}
.btn--caramel:hover { transform: translateY(-1px); }

/* ---------- Section + card grids ---------- */
.section { padding: 56px 0; }
.section--alt { background: var(--c-blush-mist); }
.section__head { max-width: 720px; margin: 0 auto 36px; text-align: center; }
.section__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 1.1rem + 1.2vw, 2.1rem);
  color: var(--c-violet);
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}
.section__lede { color: var(--color-text-soft); margin: 0; font-size: 1.04rem; }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 22px;
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--bg-surface);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius);
  padding: 24px 24px 22px;
  text-decoration: none;
  color: inherit;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-1), var(--accent-2), var(--accent-3), var(--accent-4));
  opacity: 0.85;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  border-color: var(--c-berry);
}
.card__icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  color: #fff;
  box-shadow: 0 6px 18px rgba(0,0,0,0.10);
}
.card__icon svg { width: 22px; height: 22px; }
.card__icon--caramel { background: linear-gradient(135deg, var(--c-caramel), #c87f3d); }
.card__icon--berry   { background: linear-gradient(135deg, var(--c-berry), var(--c-berry-deep)); }
.card__icon--violet  { background: linear-gradient(135deg, var(--accent-4), var(--c-violet)); }
.card__icon--blush   { background: linear-gradient(135deg, #d3578a, var(--c-berry)); }
.card__title {
  font-family: var(--font-display);
  margin: 0 0 8px;
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--c-violet);
  letter-spacing: -0.01em;
}
.card__desc { color: var(--color-text-soft); margin: 0 0 14px; font-size: 14.8px; }
.card__cta {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--c-berry);
  font-weight: 600;
  font-size: 14px;
}
.card__cta::after {
  content: "→";
  transition: transform var(--transition);
}
.card:hover .card__cta::after { transform: translateX(4px); }

/* ---------- Subcards on section pages ---------- */
.subnav-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
  margin: 24px 0 8px;
}
.subnav-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}
.subnav-card:hover { border-color: var(--c-berry); transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.subnav-card__dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--c-berry);
  margin-top: 9px;
  flex-shrink: 0;
}
.subnav-card strong { color: var(--c-violet); font-weight: 600; font-size: 15px; }
.subnav-card span { display: block; color: var(--color-text-muted); font-size: 13px; }

/* ---------- Breadcrumbs ---------- */
.breadcrumbs {
  font-size: 13.5px;
  color: var(--color-text-muted);
  margin: 0 0 14px;
}
.breadcrumbs ol { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.breadcrumbs li { display: inline-flex; align-items: center; gap: 6px; }
.breadcrumbs li + li::before {
  content: "/";
  color: var(--c-line);
  margin-right: 2px;
}
.breadcrumbs a {
  color: var(--color-text-soft);
  text-decoration: none;
  border-bottom: 1px dashed transparent;
}
.breadcrumbs a:hover { color: var(--c-berry); border-bottom-color: currentColor; }
.breadcrumbs [aria-current="page"] { color: var(--c-violet); font-weight: 600; }

/* ---------- Page header (content) ---------- */
.page-header { margin: 8px 0 32px; }
.page-eyebrow {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--c-berry);
}
.page-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 1.2rem + 1.8vw, 2.6rem);
  line-height: 1.12;
  margin: 8px 0 0;
  letter-spacing: -0.02em;
  background: linear-gradient(120deg, var(--c-violet), var(--c-berry) 70%, var(--c-caramel));
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
}

/* ---------- Prose ---------- */
.prose {
  max-width: none;
  font-size: 17px;
}
.prose > * + * { margin-top: 1.1em; }
.prose h2, .prose h3, .prose h4 {
  font-family: var(--font-display);
  color: var(--c-violet);
  letter-spacing: -0.01em;
  line-height: 1.25;
  position: relative;
}
.prose h2 {
  font-size: 1.6rem;
  margin-top: 2.2em;
  padding-bottom: 0.35em;
  border-bottom: 2px solid var(--c-blush);
}
.prose h3 { font-size: 1.25rem; margin-top: 1.8em; color: var(--c-berry-deep); }
.prose h4 { font-size: 1.08rem; margin-top: 1.5em; color: var(--c-berry-deep); }
.prose p { color: var(--color-text); }
.prose strong { color: var(--c-violet); font-weight: 700; }
.prose em { color: var(--c-berry-deep); font-style: italic; }
.prose blockquote {
  border-left: 4px solid var(--c-caramel);
  margin: 1.4em 0;
  padding: 0.4em 1em;
  color: var(--color-text-soft);
  background: var(--c-blush-mist);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.prose ul, .prose ol { padding-left: 1.4em; }
.prose li { margin: 0.4em 0; }
.prose li::marker { color: var(--c-berry); }

/* Heading anchor link */
.prose .heading-anchor {
  position: absolute;
  left: -1.4em;
  top: 0.05em;
  color: var(--c-line);
  text-decoration: none;
  opacity: 0;
  font-weight: 500;
  transition: var(--transition);
}
.prose h2:hover .heading-anchor,
.prose h3:hover .heading-anchor,
.prose h4:hover .heading-anchor { opacity: 1; color: var(--c-berry); }
@media (max-width: 720px) { .prose .heading-anchor { display: none; } }

/* Internal links */
.prose a {
  color: var(--color-link);
  text-decoration: none;
  border-bottom: 1px solid rgba(163, 38, 91, 0.25);
  transition: var(--transition);
}
.prose a:hover {
  color: var(--color-link-hover);
  border-bottom-color: currentColor;
  background: linear-gradient(180deg, transparent 70%, rgba(247, 216, 216, 0.6) 70%);
}
.prose a.external-link::after {
  content: "↗";
  display: inline-block;
  margin-left: 3px;
  font-size: 0.85em;
  vertical-align: 1px;
  opacity: 0.7;
}

/* Inline code: subtle, no border, blends in */
.prose code:not(pre code) {
  background: var(--bg-inline-code);
  color: var(--c-berry-deep);
  padding: 0.12em 0.42em;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.88em;
  font-weight: 500;
}

/* ---------- Tables ---------- */
.table-scroll {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius);
  border: 1px solid var(--color-border-soft);
  background: var(--bg-surface);
  margin: 1.4em 0;
}
.prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
  min-width: 540px;
}
.prose th, .prose td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border-soft);
  vertical-align: top;
}
.prose th {
  background: var(--c-blush-mist);
  color: var(--c-violet);
  font-weight: 700;
  border-bottom: 2px solid var(--c-blush);
  white-space: nowrap;
}
.prose tbody tr:hover { background: var(--c-blush-mist); }
.prose tbody tr:last-child td { border-bottom: none; }

/* ---------- Code blocks ---------- */
.codeblock {
  margin: 1.4em 0;
  background: var(--bg-code);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.codeblock-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  background: var(--c-blush-mist);
  border-bottom: 1px solid var(--color-border-soft);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.codeblock-lang {
  color: var(--c-berry-deep);
  font-weight: 700;
  font-family: var(--font-mono);
}
.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-surface);
  border: 1px solid var(--color-border-soft);
  color: var(--c-violet);
  padding: 5px 10px;
  border-radius: 999px;
  font: inherit;
  font-size: 12px;
  font-weight: 600;
  text-transform: none;
  letter-spacing: 0;
  cursor: pointer;
  transition: var(--transition);
}
.copy-btn:hover { background: var(--c-blush); border-color: var(--c-berry); color: var(--c-berry-deep); }
.copy-btn.copied { background: var(--c-caramel-soft); border-color: var(--c-caramel); color: var(--c-violet); }
.copy-btn svg { color: currentColor; }

.codeblock pre {
  margin: 0;
  padding: 16px 18px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  color: var(--c-ink);
  background: transparent;
}
.codeblock pre code { background: transparent; padding: 0; color: inherit; }

/* Syntax highlight tokens — light theme, on-brand */
.codeblock pre .tok-comment { color: #9a7a85; font-style: italic; }
.codeblock pre .tok-keyword { color: var(--c-berry); font-weight: 600; }
.codeblock pre .tok-string  { color: #8a4a1e; }
.codeblock pre .tok-number  { color: #6c2a8c; }
.codeblock pre .tok-builtin { color: var(--accent-4); font-weight: 500; }
.codeblock pre .tok-decorator { color: var(--c-caramel); font-style: italic; }
.codeblock pre .tok-def     { color: var(--c-berry-deep); font-weight: 600; }
.codeblock pre .tok-funcname{ color: var(--c-berry-deep); }
.codeblock pre .tok-operator{ color: var(--c-ink-soft); }
.codeblock pre .tok-punctuation { color: var(--c-ink-soft); }

/* ---------- Task list (toggle checkboxes) ---------- */
.prose ul li.task-list-item {
  list-style: none;
  margin-left: -1.4em;
  padding-left: 0;
}
.prose ul li.task-list-item::marker { content: ""; }
.task-checkbox {
  width: 17px; height: 17px;
  margin-right: 10px;
  accent-color: var(--c-berry);
  cursor: pointer;
  vertical-align: -3px;
}
.task-list-item.is-checked,
.task-list-item:has(> .task-checkbox:checked) {
  color: var(--color-text-muted);
  text-decoration: line-through;
  text-decoration-color: rgba(163, 38, 91, 0.45);
}

/* ---------- FAQ accordion ---------- */
.prose details {
  background: var(--bg-surface);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius);
  padding: 0;
  margin: 0.6em 0;
  overflow: hidden;
  transition: var(--transition);
}
.prose details[open] { border-color: var(--c-berry); box-shadow: var(--shadow-sm); }
.prose details > summary {
  cursor: pointer;
  list-style: none;
  padding: 14px 18px;
  font-weight: 600;
  color: var(--c-violet);
  display: flex;
  align-items: center;
  gap: 12px;
}
.prose details > summary::-webkit-details-marker { display: none; }
.prose details > summary::before {
  content: "+";
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--c-blush);
  color: var(--c-berry-deep);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
  transition: var(--transition);
}
.prose details[open] > summary::before { content: "−"; background: var(--c-berry); color: #fff; }
.prose details > *:not(summary) { padding: 0 18px; }
.prose details > *:not(summary):last-child { padding-bottom: 16px; }

/* ---------- Mermaid container ---------- */
.mermaid {
  background: var(--bg-surface);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius);
  padding: 18px;
  margin: 1.4em 0;
  text-align: center;
  box-shadow: var(--shadow-sm);
  overflow-x: auto;
}

/* ---------- Related links ---------- */
.related {
  margin-top: 64px;
  padding: 28px;
  background: var(--c-blush-mist);
  border-radius: var(--radius);
  border: 1px solid var(--color-border-soft);
}
.related h2 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--c-berry-deep);
  margin: 0 0 14px;
}
.related ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.related a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--c-violet);
  text-decoration: none;
  font-weight: 600;
}
.related a::before { content: "→"; color: var(--c-berry); }
.related a:hover { color: var(--c-berry); }

/* ---------- Wide screens: give content extra room ---------- */
@media (min-width: 1400px) {
  :root { --content-w: 1180px; }
}
@media (min-width: 1700px) {
  :root { --content-w: 1280px; --container-w: 1380px; }
}

/* ---------- Mobile tweaks ---------- */
@media (max-width: 640px) {
  body { font-size: 16px; }
  main { padding: 24px 0 64px; }
  .container { padding: 0 18px; }
  .hero { padding: 36px 0 32px; }
  .card { padding: 20px; }
}

/* ---------- Print friendly ---------- */
@media print {
  .site-header, .site-footer, .copy-btn, .nav__toggle { display: none !important; }
  body { background: #fff; }
  .codeblock { box-shadow: none; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.001ms !important; animation-duration: 0.001ms !important; scroll-behavior: auto !important; }
}