:root {
  --plus-50: #e6f6f7;
  --plus-100: #bce1ee;
  --plus-200: #99d5ed;
  --plus-300: #69bfe9;
  --plus-400: #4fb0dd;
  --plus-500: #269ad0;
  --plus-600: #208ebd;
  --plus-700: #216e93;
  --plus-800: #0d556f;
  --plus-900: #114652;

  --minus-50: #e7eef4;
  --minus-100: #b2cee3;
  --minus-200: #8eb6da;
  --minus-300: #5a92c4;
  --minus-400: #3b7db0;
  --minus-500: #095da2;
  --minus-600: #0a588e;
  --minus-700: #0c4171;
  --minus-800: #0b345b;
  --minus-900: #06273e;

  --orange-plus-50: #fcf4ec;
  --orange-plus-100: #f6d8c0;
  --orange-plus-200: #f7c7ab;
  --orange-plus-300: #f3aa75;
  --orange-plus-400: #ea9c5e;
  --orange-plus-500: #e3863d;
  --orange-plus-600: #cd7b36;
  --orange-plus-700: #a75e27;
  --orange-plus-800: #7b4b27;
  --orange-plus-900: #5b391e;

  --orange-minus-50: #fdf0e7;
  --orange-minus-100: #fccdb5;
  --orange-minus-200: #f2b399;
  --orange-minus-300: #f19276;
  --orange-minus-400: #e77f53;
  --orange-minus-500: #e05e28;
  --orange-minus-600: #c65522;
  --orange-minus-700: #9e4215;
  --orange-minus-800: #7b351e;
  --orange-minus-900: #632b18;

  --gray-50: #f5f5f5;
  --gray-100: #dbdbdb;
  --gray-200: #c8c8c8;
  --gray-300: #b1b1b1;
  --gray-400: #a1a1a1;
  --gray-500: #8c8c8c;
  --gray-600: #7e7e7e;
  --gray-700: #646464;
  --gray-800: #4b4b4b;
  --gray-900: #3d3d3d;

  --dark-50: #eaeaea;
  --dark-100: #b6b6b6;
  --dark-200: #939393;
  --dark-300: #5e5e5e;
  --dark-400: #464646;
  --dark-500: #111111;
  --dark-600: #0f0f0f;
  --dark-700: #0a0a0a;
  --dark-800: #0a0a0a;
  --dark-900: #090909;

  --white: #ffffff;
  --white-600: #e9e9e9;
  --white-700: #b8b8b8;
  --white-800: #8d8d8d;
  --white-900: #6b6b6b;

  --ink: var(--dark-500);
  --muted: var(--gray-700);
  --line: var(--gray-100);
  --paper: var(--white);
  --accent: var(--orange-minus-500);
  --brand: var(--minus-500);

  --display: clamp(2.5rem, 4.2vw, 3.5rem);
  --h1: clamp(1.75rem, 2.4vw, 2.5rem);
  --h2: 2rem;
  --h3: 1.5rem;
  --h4: 1.25rem;
  --h5: 1.125rem;
  --body-lg: 1.125rem;
  --body: 1rem;
  --body-sm: 0.875rem;
  --label: 0.75rem;

  --space: 1.5rem;
  --page: min(1120px, calc(100% - 3rem));
  --radius: 2px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 3.5rem;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "Segoe UI", sans-serif;
  font-size: var(--body);
  font-weight: 400;
  line-height: 1.55;
}

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

a {
  color: var(--minus-500);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--minus-700);
}

.skip {
  position: absolute;
  left: 1rem;
  top: -4rem;
  background: var(--white);
  padding: 0.5rem 0.75rem;
  z-index: 20;
}

.skip:focus {
  top: 1rem;
}

.kicker {
  margin: 0 0 0.75rem;
  color: var(--accent);
  font-size: var(--label);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.display {
  margin: 0;
  font-size: var(--display);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.03em;
}

.h1 {
  margin: 0 0 1rem;
  font-size: var(--h1);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.025em;
}

.h2 {
  margin: 0 0 0.75rem;
  font-size: var(--h2);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.h3 {
  margin: 0 0 0.5rem;
  font-size: var(--h3);
  font-weight: 600;
  line-height: 1.3;
}

.lede {
  max-width: 42rem;
  margin: 0;
  color: var(--muted);
  font-size: var(--body-lg);
  line-height: 1.5;
}

.meta {
  color: var(--muted);
  font-size: var(--body-sm);
}

.cover {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: 1.75rem 2rem 2rem;
  color: var(--white);
  background:
    radial-gradient(1200px 480px at 110% 120%, rgba(38, 154, 208, 0.22), transparent 55%),
    var(--minus-900);
}

.cover-top,
.cover-bottom {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  font-size: var(--label);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--plus-200);
}

.cover-main {
  display: grid;
  align-content: end;
  gap: 2rem;
  padding: 8vh 0 6vh;
  max-width: 920px;
}

.cover-logo {
  width: min(420px, 72vw);
}

.cover .display {
  max-width: 14ch;
}

.cover .lede {
  color: var(--plus-100);
}

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  gap: 1.25rem;
  overflow: auto;
  padding: 0.9rem 1.5rem;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  font-size: var(--label);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav a {
  color: var(--gray-700);
  text-decoration: none;
  white-space: nowrap;
}

.nav a:hover,
.nav a:focus {
  color: var(--minus-500);
}

.page {
  width: var(--page);
  margin: 0 auto;
  padding: 5.5rem 0 2rem;
}

.section {
  padding: 4.5rem 0;
  border-top: 1px solid var(--line);
  scroll-margin-top: 3.5rem;
}

.section:first-of-type {
  border-top: 0;
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 2.5rem;
  margin-bottom: 2.75rem;
  align-items: start;
}

.section-copy p {
  margin: 0 0 1rem;
  color: var(--muted);
}

.section-copy p:last-child {
  margin-bottom: 0;
}

.grid-2,
.grid-3,
.grid-4,
.swatch-row,
.dont-grid,
.spec-grid,
.files-grid {
  display: grid;
  gap: 1.25rem;
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.panel {
  border: 1px solid var(--line);
  background: var(--white);
  overflow: hidden;
}

.panel-label {
  padding: 0.85rem 1rem 0.7rem;
  border-bottom: 1px solid var(--line);
  font-size: var(--label);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.stage {
  display: grid;
  place-items: center;
  min-height: 220px;
  padding: 2.5rem 2rem;
}

.stage img {
  width: min(280px, 80%);
}

.stage-light {
  background: var(--white);
}

.stage-paper {
  background: var(--gray-50);
}

.stage-dark {
  background: var(--dark-500);
}

.stage-navy {
  background: var(--minus-800);
}

.stage-blue {
  background: var(--minus-500);
}

.anatomy {
  display: grid;
  grid-template-columns: 1.4fr 0.9fr;
  gap: 2rem;
  align-items: center;
}

.anatomy-art {
  display: grid;
  place-items: center;
  padding: 3rem 2rem 2.25rem;
  background: var(--gray-50);
  border: 1px solid var(--line);
}

.anatomy-art img {
  width: min(460px, 100%);
}

.anatomy dl {
  margin: 0;
  display: grid;
  gap: 1.1rem;
}

.anatomy dt {
  color: var(--accent);
  font-size: var(--label);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.anatomy dd {
  margin: 0.25rem 0 0;
  color: var(--muted);
}

.clearspace {
  display: grid;
  place-items: center;
  padding: 3.5rem 2rem;
  background: var(--gray-50);
  border: 1px solid var(--line);
}

.clearspace-box {
  position: relative;
  padding: 12%;
  border: 1px dashed var(--minus-400);
  background:
    repeating-linear-gradient(
      -45deg,
      transparent,
      transparent 6px,
      rgba(9, 93, 162, 0.06) 6px,
      rgba(9, 93, 162, 0.06) 7px
    );
}

.clearspace-box img {
  width: min(360px, 70vw);
  background: var(--white);
}

.clearspace-box span {
  position: absolute;
  color: var(--minus-500);
  font-size: var(--label);
  font-weight: 600;
  letter-spacing: 0.08em;
}

.clearspace-box .t { top: 0.35rem; left: 50%; transform: translateX(-50%); }
.clearspace-box .b { bottom: 0.35rem; left: 50%; transform: translateX(-50%); }
.clearspace-box .l { left: 0.4rem; top: 50%; transform: translateY(-50%); }
.clearspace-box .r { right: 0.4rem; top: 50%; transform: translateY(-50%); }

.size-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
}

.size-card {
  padding: 1.5rem 1.25rem 1.25rem;
  border: 1px solid var(--line);
}

.size-card img {
  margin: 1rem 0 1.25rem;
}

.size-card .measure {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

.symbol-row {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1.25rem;
}

.favicon-set {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  align-items: end;
}

.favicon-item {
  display: grid;
  gap: 0.5rem;
  justify-items: center;
  font-size: var(--label);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.favicon-item img,
.favicon-item .tile {
  border: 1px solid var(--line);
  background: var(--white);
  image-rendering: auto;
}

.dont-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.dont {
  border: 1px solid var(--line);
  overflow: hidden;
}

.dont .stage {
  min-height: 180px;
  position: relative;
}

.dont .stage img {
  width: min(180px, 70%);
}

.dont-badge {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  width: 1.35rem;
  height: 1.35rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--orange-minus-500);
  color: var(--white);
  font-size: 0.8rem;
  font-weight: 700;
}

.dont p {
  margin: 0;
  padding: 0.85rem 1rem 1rem;
  font-size: var(--body-sm);
  color: var(--muted);
}

.stretch { transform: scaleX(1.45); }
.rotate { transform: rotate(14deg); }
.recolor { filter: hue-rotate(95deg) saturate(1.6); }
.shadow { filter: drop-shadow(8px 10px 0 rgba(14, 14, 14, 0.28)); }
.lowcon { opacity: 0.22; }
.crop-demo {
  width: 140px;
  height: 72px;
  overflow: hidden;
}
.crop-demo img {
  width: 220px;
  max-width: none;
  margin-left: -40px;
}
.outline {
  filter: invert(1);
  background: #9ad;
  padding: 0.5rem;
}

.ramp {
  margin: 0 0 2.5rem;
}

.ramp h3 {
  margin-bottom: 0.85rem;
}

.swatch-row {
  grid-template-columns: repeat(10, minmax(0, 1fr));
  gap: 0.45rem;
}

.swatch {
  min-width: 0;
}

.chip {
  height: 72px;
  border: 1px solid rgba(0, 0, 0, 0.06);
}

.swatch code,
.token code {
  display: block;
  margin-top: 0.4rem;
  font-family: Inter, sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--gray-800);
  overflow: hidden;
  text-overflow: ellipsis;
}

.swatch span {
  display: block;
  font-size: 0.65rem;
  color: var(--gray-600);
}

.token-row {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 0.75rem;
}

.token .chip {
  height: 96px;
}

.contrast-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--body-sm);
}

.contrast-table th,
.contrast-table td {
  padding: 0.8rem 0.7rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
}

.contrast-table th {
  font-size: var(--label);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
}

.pair {
  display: inline-flex;
  align-items: center;
  min-width: 9.5rem;
  padding: 0.35rem 0.55rem;
  font-weight: 600;
}

.type-specimen {
  display: grid;
  gap: 1.1rem;
}

.type-row {
  display: grid;
  grid-template-columns: 7.5rem 1fr auto;
  gap: 1rem;
  align-items: baseline;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}

.type-row .name {
  color: var(--accent);
  font-size: var(--label);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.type-row .sample {
  margin: 0;
}

.type-row .spec {
  color: var(--muted);
  font-size: var(--body-sm);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.sample-display { font-size: var(--display); font-weight: 600; line-height: 1.12; letter-spacing: -0.03em; }
.sample-h1 { font-size: var(--h1); font-weight: 600; line-height: 1.2; }
.sample-h2 { font-size: var(--h2); font-weight: 600; line-height: 1.25; }
.sample-h3 { font-size: var(--h3); font-weight: 600; }
.sample-h4 { font-size: var(--h4); font-weight: 600; }
.sample-h5 { font-size: var(--h5); font-weight: 600; }
.sample-bl { font-size: var(--body-lg); }
.sample-b { font-size: var(--body); }
.sample-bs { font-size: var(--body-sm); }
.sample-label { font-size: var(--label); font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; }

.placement .stage img {
  width: min(200px, 60%);
}

.spec-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.spec-card {
  padding: 1.25rem;
  border: 1px solid var(--line);
}

.spec-card h3 {
  margin-top: 0;
}

.spec-card ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--muted);
}

.files-grid {
  grid-template-columns: 1fr 1fr;
}

.file-row {
  display: grid;
  grid-template-columns: 8rem 1fr;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.file-row strong {
  font-size: var(--body-sm);
}

.doc-foot {
  padding: 2.5rem 0 4rem;
  color: var(--plus-100);
  background: var(--minus-900);
}

.doc-foot .page {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 0;
  font-size: var(--body-sm);
}

@media (max-height: 720px) {
  .cover-main {
    padding: 4vh 0 3vh;
  }
  .cover-logo {
    width: min(340px, 70vw);
  }
}

@media (max-width: 960px) {
  :root { --page: min(100% - 2rem, 1120px); }
  .section-head,
  .anatomy,
  .symbol-row,
  .type-row,
  .files-grid {
    grid-template-columns: 1fr;
  }
  .grid-4,
  .dont-grid,
  .token-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .swatch-row {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
  .size-row,
  .grid-3,
  .spec-grid {
    grid-template-columns: 1fr;
  }
}

@page {
  size: A4;
  margin: 12mm;
}

@page letter {
  size: letter;
  margin: 0.5in;
}

@media print {
  .nav, .skip { display: none; }
  .cover {
    min-height: 100vh;
    page-break-after: always;
  }
  .section { page-break-inside: avoid; }
  body { background: white; }
}