/* Petabit Scale — branding.petabitscale.com asset hub */

@import url('/assets/brand/palette/palette.css');

/* ---- Fonts (mirrors assets/brand/web-snippets.md @font-face block) ---- */

@font-face {
  font-family: 'Raleway';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('/fonts/raleway/Raleway.ttf') format('truetype-variations'),
       url('/fonts/raleway/Raleway.ttf') format('truetype');
}
@font-face {
  font-family: 'Raleway';
  font-style: italic;
  font-weight: 100 900;
  font-display: swap;
  src: url('/fonts/raleway/Raleway-Italic.ttf') format('truetype-variations'),
       url('/fonts/raleway/Raleway-Italic.ttf') format('truetype');
}

@font-face {
  font-family: 'Lato';
  font-style: normal;
  font-weight: 300;
  font-display: swap;
  src: url('/fonts/lato/Lato-Light.ttf') format('truetype');
}
@font-face {
  font-family: 'Lato';
  font-style: italic;
  font-weight: 300;
  font-display: swap;
  src: url('/fonts/lato/Lato-LightItalic.ttf') format('truetype');
}
@font-face {
  font-family: 'Lato';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/lato/Lato-Regular.ttf') format('truetype');
}
@font-face {
  font-family: 'Lato';
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/lato/Lato-Italic.ttf') format('truetype');
}
@font-face {
  font-family: 'Lato';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('/fonts/lato/Lato-Bold.ttf') format('truetype');
}
@font-face {
  font-family: 'Lato';
  font-style: italic;
  font-weight: 700;
  font-display: swap;
  src: url('/fonts/lato/Lato-BoldItalic.ttf') format('truetype');
}

@font-face {
  font-family: 'Open Sans';
  font-style: normal;
  font-weight: 300 800;
  font-stretch: 75% 100%;
  font-display: swap;
  src: url('/fonts/opensans/OpenSans.ttf') format('truetype-variations'),
       url('/fonts/opensans/OpenSans.ttf') format('truetype');
}
@font-face {
  font-family: 'Open Sans';
  font-style: italic;
  font-weight: 300 800;
  font-stretch: 75% 100%;
  font-display: swap;
  src: url('/fonts/opensans/OpenSans-Italic.ttf') format('truetype-variations'),
       url('/fonts/opensans/OpenSans-Italic.ttf') format('truetype');
}

/* ---- Tokens ---- */

:root {
  --ps-font-display: 'Raleway', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --ps-font-header:  'Lato', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --ps-font-body:    'Open Sans', 'Lato', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --ps-font-mono:    ui-monospace, 'SF Mono', 'JetBrains Mono', Menlo, Consolas, monospace;

  --ps-cream-bg:     #FBF8F3;
  --ps-rule:         #E5DECC;
  --ps-muted:        #5A6369;

  --ps-radius:       6px;
  --ps-radius-lg:    12px;
  --ps-shadow-sm:    0 1px 2px rgba(31, 39, 43, 0.06);
  --ps-shadow-md:    0 4px 16px rgba(31, 39, 43, 0.08);

  --ps-page-max:     1100px;
  --ps-gap:          1.5rem;
}

/* ---- Reset / base ---- */

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--ps-font-body);
  font-size: 16px;
  line-height: 1.55;
  color: var(--ps-charcoal);
  background: #FFFFFF;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

code, pre { font-family: var(--ps-font-mono); font-size: 0.875rem; }

a {
  color: var(--ps-primary-teal);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 120ms ease, color 120ms ease;
}
a:hover { border-bottom-color: var(--ps-primary-teal); }

h1, h2, h3, h4 {
  font-family: var(--ps-font-header);
  color: var(--ps-forest-green);
  margin: 0 0 0.6em;
  line-height: 1.2;
  font-weight: 700;
}
h1 {
  font-family: var(--ps-font-display);
  font-weight: 300;
  font-size: clamp(2.25rem, 4vw, 3.25rem);
  letter-spacing: -0.01em;
  line-height: 1.05;
}
h2 { font-size: clamp(1.5rem, 2.4vw, 2rem); }
h3 { font-size: 1.125rem; letter-spacing: 0.02em; text-transform: uppercase; }
h4 { font-size: 0.9rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ps-primary-teal); }

p { margin: 0 0 1em; }

hr {
  border: 0;
  border-top: 1px solid var(--ps-rule);
  margin: 3rem 0;
}

.kicker {
  font-family: var(--ps-font-header);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ps-primary-teal);
}

.muted { color: var(--ps-muted); }

/* ---- Layout ---- */

.wrap { max-width: var(--ps-page-max); margin: 0 auto; padding: 0 1.5rem; }

main { padding-bottom: 4rem; }

section { padding: 3rem 0; border-top: 1px solid var(--ps-rule); }
section:first-of-type { border-top: 0; }

section header { margin-bottom: 1.5rem; }
section header p { margin: 0.25rem 0 0; max-width: 60ch; color: var(--ps-muted); }

.row { display: flex; flex-wrap: wrap; gap: var(--ps-gap); align-items: center; }
.row.between { justify-content: space-between; }
.row.right { justify-content: flex-end; }

/* ---- Top bar ---- */

.topbar {
  background: var(--ps-charcoal);
  color: #E7E3DB;
  padding: 1.25rem 0;
  border-bottom: 4px solid var(--ps-primary-teal);
}
.topbar .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.topbar .wordmark { display: flex; align-items: center; gap: 0.75rem; }
.topbar .wordmark img { height: 36px; width: auto; }
.topbar .meta { font-family: var(--ps-font-mono); font-size: 0.78rem; color: #C5BFB1; }
.topbar .meta strong { color: var(--ps-bronze); font-weight: 600; }

/* ---- Hero ---- */

.hero {
  padding: 4rem 0 3rem;
  background:
    linear-gradient(180deg, var(--ps-cream-bg) 0%, #FFFFFF 100%);
  border-bottom: 1px solid var(--ps-rule);
}
.hero .lead {
  max-width: 60ch;
  font-size: 1.125rem;
  color: var(--ps-charcoal);
}
.hero .pills {
  display: flex; flex-wrap: wrap; gap: 0.5rem;
  margin-top: 1.5rem;
}
.pill {
  display: inline-block;
  font-family: var(--ps-font-mono);
  font-size: 0.78rem;
  padding: 0.35rem 0.75rem;
  background: #FFFFFF;
  border: 1px solid var(--ps-rule);
  border-radius: 999px;
  color: var(--ps-charcoal);
  text-decoration: none;
}
.pill:hover { border-color: var(--ps-primary-teal); border-bottom-color: var(--ps-primary-teal); }
.pill.solid {
  background: var(--ps-primary-teal);
  color: #FFFFFF;
  border-color: var(--ps-primary-teal);
}
.pill.solid:hover { background: var(--ps-forest-green); border-color: var(--ps-forest-green); }

/* ---- Logos grid ---- */

.logo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--ps-gap);
}
.logo-tile {
  border: 1px solid var(--ps-rule);
  border-radius: var(--ps-radius-lg);
  overflow: hidden;
  background: #FFFFFF;
  display: flex;
  flex-direction: column;
}
.logo-tile .preview {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2.5rem 1.5rem;
  min-height: 180px;
}
.logo-tile.on-light .preview { background: #FFFFFF; }
.logo-tile.on-dark  .preview { background: var(--ps-charcoal); }
.logo-tile.on-cream .preview { background: var(--ps-cream-bg); }
.logo-tile .preview img { max-height: 96px; width: auto; }
.logo-tile.mark .preview img { max-height: 72px; }
.logo-tile .meta {
  border-top: 1px solid var(--ps-rule);
  padding: 0.85rem 1rem;
  font-family: var(--ps-font-mono);
  font-size: 0.78rem;
}
.logo-tile .meta .name { color: var(--ps-charcoal); display: block; margin-bottom: 0.4rem; }
.logo-tile .meta .links { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.logo-tile .meta .links a {
  display: inline-block;
  padding: 0.25rem 0.55rem;
  border: 1px solid var(--ps-rule);
  border-radius: 4px;
  font-size: 0.72rem;
  color: var(--ps-charcoal);
}
.logo-tile .meta .links a:hover {
  border-color: var(--ps-primary-teal);
  color: var(--ps-primary-teal);
}

/* ---- Color swatches ---- */

.swatch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
}
.swatch {
  border: 1px solid var(--ps-rule);
  border-radius: var(--ps-radius-lg);
  overflow: hidden;
  background: #FFFFFF;
  cursor: pointer;
  transition: transform 120ms ease, box-shadow 120ms ease;
  text-align: left;
  font: inherit;
  color: inherit;
  padding: 0;
  display: block;
  width: 100%;
}
.swatch:hover { transform: translateY(-2px); box-shadow: var(--ps-shadow-md); }
.swatch .chip { height: 110px; width: 100%; }
.swatch .info { padding: 0.75rem 0.85rem; font-size: 0.85rem; }
.swatch .info .name { font-family: var(--ps-font-header); font-weight: 700; color: var(--ps-charcoal); }
.swatch .info .hex { font-family: var(--ps-font-mono); color: var(--ps-muted); margin-top: 0.15rem; }
.swatch .info .var { font-family: var(--ps-font-mono); font-size: 0.72rem; color: var(--ps-primary-teal); margin-top: 0.15rem; }
.swatch .info .role { font-size: 0.75rem; color: var(--ps-muted); margin-top: 0.4rem; line-height: 1.35; }
.swatch .copy-flash {
  display: inline-block;
  margin-left: 0.5rem;
  font-size: 0.7rem;
  color: var(--ps-forest-green);
  opacity: 0;
  transition: opacity 200ms ease;
}
.swatch.copied .copy-flash { opacity: 1; }

/* ---- Type cards ---- */

.type-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--ps-gap);
}
.type-card {
  border: 1px solid var(--ps-rule);
  border-radius: var(--ps-radius-lg);
  background: #FFFFFF;
  padding: 1.5rem;
}
.type-card .name { font-size: 1.5rem; margin-bottom: 0.25rem; }
.type-card .role { font-size: 0.78rem; color: var(--ps-muted); text-transform: uppercase; letter-spacing: 0.08em; }
.type-card .samples { margin: 1.25rem 0; }
.type-card .samples > div { margin-bottom: 0.75rem; line-height: 1.15; color: var(--ps-charcoal); }
.type-card.raleway   .name, .type-card.raleway   .samples > div { font-family: var(--ps-font-display); }
.type-card.lato      .name, .type-card.lato      .samples > div { font-family: var(--ps-font-header); }
.type-card.opensans  .name, .type-card.opensans  .samples > div { font-family: var(--ps-font-body); }
.type-card .note {
  font-size: 0.85rem;
  color: var(--ps-muted);
  border-top: 1px solid var(--ps-rule);
  padding-top: 0.85rem;
}

/* ---- Brand guide section ---- */

.guide {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: var(--ps-gap);
  align-items: start;
}
@media (max-width: 760px) { .guide { grid-template-columns: 1fr; } }
.guide embed, .guide iframe {
  width: 100%;
  height: 600px;
  border: 1px solid var(--ps-rule);
  border-radius: var(--ps-radius-lg);
  background: #FFFFFF;
}
.guide .meta {
  background: var(--ps-cream-bg);
  border: 1px solid var(--ps-rule);
  border-radius: var(--ps-radius-lg);
  padding: 1.25rem;
}

/* ---- Snippets ---- */

.snippet {
  background: var(--ps-charcoal);
  color: #E7E3DB;
  border-radius: var(--ps-radius-lg);
  overflow: hidden;
  margin-bottom: 1rem;
  position: relative;
}
.snippet header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.6rem 0.9rem;
  background: rgba(255,255,255,0.04);
  margin: 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.snippet header span {
  font-family: var(--ps-font-mono);
  font-size: 0.78rem;
  color: var(--ps-bronze);
}
.snippet header button {
  font-family: var(--ps-font-mono);
  font-size: 0.72rem;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.18);
  color: #E7E3DB;
  border-radius: 4px;
  padding: 0.25rem 0.6rem;
  cursor: pointer;
  transition: background 120ms ease, border-color 120ms ease;
}
.snippet header button:hover { background: rgba(255,255,255,0.08); border-color: var(--ps-primary-teal); }
.snippet pre {
  margin: 0;
  padding: 1rem 1.25rem;
  font-size: 0.78rem;
  line-height: 1.5;
  overflow-x: auto;
}

/* ---- Footer ---- */

footer.site-foot {
  background: var(--ps-charcoal);
  color: #C5BFB1;
  padding: 2rem 0 2.5rem;
  font-size: 0.85rem;
}
footer.site-foot a { color: var(--ps-cream); }
footer.site-foot a:hover { border-bottom-color: var(--ps-cream); }
footer.site-foot .row { gap: 2rem; }
footer.site-foot .rules h4 { color: var(--ps-bronze); margin-bottom: 0.4rem; }
footer.site-foot .rules ul { margin: 0; padding-left: 1.1rem; }
footer.site-foot .rules li { margin-bottom: 0.2rem; }
footer.site-foot .build {
  font-family: var(--ps-font-mono);
  font-size: 0.75rem;
  color: var(--ps-warm-sage);
  margin-top: 1rem;
}

/* ---- Voice-guidelines.html "prose" page ---- */

body.prose {
  background: var(--ps-cream-bg);
}
body.prose .prose-header {
  background: #FFFFFF;
  border-bottom: 1px solid var(--ps-rule);
  padding: 1rem 1.5rem;
}
body.prose .prose-header a { color: var(--ps-primary-teal); }
body.prose .prose-body {
  max-width: 780px;
  margin: 2rem auto 4rem;
  padding: 2.5rem;
  background: #FFFFFF;
  border: 1px solid var(--ps-rule);
  border-radius: var(--ps-radius-lg);
}
body.prose .prose-body h1 { font-size: 2.25rem; }
body.prose .prose-body h2 { margin-top: 2.5rem; padding-top: 1rem; border-top: 1px solid var(--ps-rule); }
body.prose .prose-body code {
  background: var(--ps-cream-bg);
  padding: 0.1em 0.35em;
  border-radius: 3px;
}
body.prose .prose-body pre {
  background: var(--ps-charcoal);
  color: #E7E3DB;
  padding: 1rem;
  border-radius: var(--ps-radius);
  overflow-x: auto;
}
body.prose .prose-body pre code { background: transparent; padding: 0; }
body.prose .prose-body table { border-collapse: collapse; width: 100%; margin: 1em 0; }
body.prose .prose-body th, body.prose .prose-body td {
  border-bottom: 1px solid var(--ps-rule);
  padding: 0.5rem 0.75rem;
  text-align: left;
  vertical-align: top;
}
body.prose .prose-body blockquote {
  margin: 1.25em 0;
  padding-left: 1rem;
  border-left: 3px solid var(--ps-bronze);
  color: var(--ps-muted);
}