/* TapTrail landing — Industry "spec sheet". Square, hairline, blueprint corners. */

@import url('https://fonts.googleapis.com/css2?family=Barlow:wght@400;500;700&family=Barlow+Condensed:wght@600&display=swap');

:root {
  --color-bg: #f2f2f3;
  --color-surface: #e9e9ea;
  --color-text: #1d1f20;
  --color-accent: #5980a6;
  --color-divider: color-mix(in srgb, #1d1f20 16%, transparent);

  --color-neutral-100: #f5f5f8;
  --color-neutral-200: #e7e7ea;
  --color-neutral-300: #d4d4d7;
  --color-neutral-400: #b7b7ba;
  --color-neutral-500: #98989b;
  --color-neutral-600: #7a7a7d;
  --color-neutral-700: #5d5d60;
  --color-neutral-800: #424244;
  --color-neutral-900: #2b2b2d;

  --color-accent-100: #eef6ff;
  --color-accent-200: #d6ebff;
  --color-accent-300: #b5d9fd;
  --color-accent-400: #94bce3;
  --color-accent-500: #749dc4;
  --color-accent-600: #597ea3;
  --color-accent-700: #416180;
  --color-accent-800: #2c455d;
  --color-accent-900: #1d2d3d;

  --font-heading: "Barlow Condensed", system-ui, sans-serif;
  --font-body: "Barlow", system-ui, sans-serif;

  --shadow-sm: 0 1px 2px #2b2b2d24;
  --shadow-md: 0 3px 10px #2b2b2d29;
  --shadow-lg: 0 12px 32px #2b2b2d38;

  --pad: 20px;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font: 400 15px/1.55 var(--font-body);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, p { margin: 0; }
h1, h2, .logo, .step-title, .kicker, .kicker-label, .pane-title, .rotate, .following, .tip-k, .btn {
  font-family: var(--font-heading);
  font-weight: 600;
}

a { color: var(--color-accent-700); text-decoration: none; }
a:hover { color: var(--color-accent-800); }
:focus { outline: none; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
::selection { background: color-mix(in srgb, var(--color-accent) 30%, transparent); }

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.92em;
  background: var(--color-neutral-200);
  padding: 1px 6px;
}

.shell { width: 100%; }

.only-d { display: none; }
.only-m { display: inline; }

/* blueprint frame */

.blueprint { position: relative; border: 1px solid var(--color-divider); }
.blueprint > .corner {
  position: absolute;
  width: 11px;
  height: 11px;
  color: color-mix(in srgb, var(--color-text) 55%, transparent);
  pointer-events: none;
}
.blueprint > .corner::before,
.blueprint > .corner::after { content: ""; position: absolute; background: currentColor; }
.blueprint > .corner::before { left: 5px; top: 0; width: 1px; height: 100%; }
.blueprint > .corner::after { top: 5px; left: 0; width: 100%; height: 1px; }
.blueprint > .corner.tl { top: -6px; left: -6px; }
.blueprint > .corner.tr { top: -6px; right: -6px; }
.blueprint > .corner.bl { bottom: -6px; left: -6px; }
.blueprint > .corner.br { bottom: -6px; right: -6px; }

/* buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
  text-decoration: none;
  font-size: 14px;
  line-height: 1.2;
  color: var(--color-text);
  background: transparent;
  border: 1px solid var(--color-divider);
  border-radius: 0;
  padding: 7px 12px;
}
.btn:hover { color: var(--color-text); }
.btn-primary { background: var(--color-accent); color: var(--color-bg); border-color: var(--color-accent); }
.btn-primary:hover { background: var(--color-accent-600); color: var(--color-bg); }
.btn-primary:active { background: var(--color-accent-700); color: var(--color-bg); }
.btn-secondary:hover { background: color-mix(in srgb, var(--color-text) 7%, transparent); }
.btn-secondary:active { background: color-mix(in srgb, var(--color-text) 14%, transparent); }

/* header */

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  padding: 0 var(--pad);
  border-bottom: 1px solid var(--color-divider);
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  color: var(--color-text);
  letter-spacing: 0;
}
.logo:hover { color: var(--color-text); }
.dots { display: flex; align-items: center; gap: 4px; }
.dots i { width: 6px; height: 6px; border-radius: 50%; background: var(--color-accent); display: block; }
.dots i:last-child { width: 10px; height: 10px; background: var(--color-text); }

.top-nav { display: none; }
.top-cta { display: none; }
.menu-btn {
  width: 44px;
  height: 44px;
  padding: 0;
  flex-direction: column;
  gap: 5px;
}
.menu-btn span { width: 18px; height: 1.5px; background: var(--color-text); display: block; }

.menu {
  display: flex;
  flex-direction: column;
  border-bottom: 1px solid var(--color-divider);
}
.menu[hidden] { display: none; }
.menu a {
  padding: 14px 20px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 22px;
  text-transform: uppercase;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-divider);
}
.menu a:last-child { border-bottom: 0; }
.menu a:hover { color: var(--color-text); background: color-mix(in srgb, var(--color-text) 4%, transparent); }
.menu a[aria-current="page"] { color: var(--color-accent-700); }
.menu a[aria-current="page"]::after { content: " ●"; }

/* hero */

.hero { padding-bottom: 0; }
.kicker {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 32px var(--pad) 0;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-neutral-700);
}
.hero h1 {
  margin: 12px 0 0;
  padding: 0 18px;
  font-size: 76px;
  line-height: 0.86;
  letter-spacing: -0.03em;
  text-transform: uppercase;
}
.hero h1 .accent { color: var(--color-accent); }
.hero h1 .break { display: inline; }

.hero-grid { display: flex; flex-direction: column; }
.hero-copy {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 24px var(--pad) 0;
}
.lede { font-size: 18px; line-height: 1.5; text-wrap: pretty; }
.cta { display: flex; flex-direction: column; gap: 10px; }
.cta .btn-primary { font-size: 19px; padding: 15px 20px; }
.cta .btn-secondary { font-size: 17px; padding: 13px 20px; }
.hero-demo { padding: 40px var(--pad) 48px; }

/* trail demo */

.demo {
  background: var(--color-neutral-100);
  box-shadow: var(--shadow-lg);
  font-family: var(--font-body);
  color: var(--color-text);
}
.chrome {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--color-divider);
}
.win { display: flex; gap: 5px; }
.win i { width: 9px; height: 9px; border: 1px solid var(--color-neutral-500); display: block; }
.url {
  flex: 1;
  min-width: 0;
  font-size: 12px;
  color: var(--color-neutral-700);
  background: transparent;
  border: 1px solid var(--color-divider);
  padding: 4px 10px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.path-b { display: none; }
.following {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent-700);
  white-space: nowrap;
}
.stage {
  position: relative;
  aspect-ratio: 16 / 9;
  display: grid;
  grid-template-columns: 18% 1fr;
}
.side {
  border-right: 1px solid var(--color-divider);
  padding: 6% 12%;
  display: flex;
  flex-direction: column;
  gap: 9%;
}
.side i { height: 6px; background: var(--color-neutral-300); display: block; }
.side i:first-child { background: var(--color-neutral-400); }
.nav-item { background: var(--color-neutral-300); }

.pane {
  padding: 4% 5%;
  display: flex;
  flex-direction: column;
  gap: 5%;
  min-width: 0;
}
.page-b { display: none; }
.pane-head { display: flex; justify-content: space-between; align-items: center; }
.pane-title { font-size: 15px; line-height: 1; }
.fake-btn { height: 16px; width: 70px; border: 1px solid var(--color-divider); }
.rows {
  flex: 1;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--color-divider);
  min-height: 0;
}
.row {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 4%;
  border-bottom: 1px solid var(--color-divider);
  min-height: 0;
}
.row:last-child { border-bottom: 0; }
.box { width: 14px; height: 14px; border: 1px solid var(--color-neutral-500); flex: none; }
.box.fill { background: var(--color-accent); border-color: var(--color-accent); }
.row i { height: 6px; background: var(--color-neutral-300); display: block; }
.row-label { font-size: 12px; font-weight: 500; }
.block {
  border: 1px solid var(--color-divider);
  padding: 4%;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.block i { height: 6px; background: var(--color-neutral-300); display: block; }
.block.grow { flex: 1; justify-content: space-between; }
.stack { display: flex; flex-direction: column; gap: 10px; }
.rotate {
  align-self: flex-end;
  padding: 6px 14px;
  font-size: 11px;
  letter-spacing: 0.04em;
  background: var(--color-accent);
  color: var(--color-bg);
}

.connector { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; opacity: 0; }
.mark {
  position: absolute;
  width: 0;
  height: 0;
  opacity: 0;
  transition: opacity 0.3s;
}
.mark .ping,
.mark .num {
  position: absolute;
  left: -15px;
  top: -15px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
}
.mark .ping { background: var(--color-accent); display: none; }
.mark .num {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 15px;
  background: var(--color-accent);
  color: var(--color-bg);
  box-shadow: 0 0 0 3px var(--color-neutral-100);
}
.tip {
  position: absolute;
  padding: 8px 12px;
  background: var(--color-text);
  color: var(--color-bg);
  white-space: nowrap;
  font-size: 13px;
  opacity: 0;
  pointer-events: none;
  transition: left 0.4s, top 0.4s, opacity 0.3s;
}
.tip-k {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent-400);
}

/* phases: 0 empty, 1 mark, 2 path, 3 page change, 4 hold */

.demo-root[data-phase="1"] .nav-item,
.demo-root[data-phase="2"] .nav-item,
.demo-root[data-phase="3"] .nav-item,
.demo-root[data-phase="4"] .nav-item { background: var(--color-accent); }
.demo-root[data-phase="2"] .row-hit { background: var(--color-accent-100); }
.demo-root[data-phase="2"] .connector { opacity: 1; }

.demo-root[data-phase="1"] .mark[data-n="1"],
.demo-root[data-phase="2"] .mark[data-n="1"],
.demo-root[data-phase="2"] .mark[data-n="2"] { opacity: 1; }
.demo-root[data-phase="3"] .page-a,
.demo-root[data-phase="4"] .page-a,
.demo-root[data-phase="3"] .path-a,
.demo-root[data-phase="4"] .path-a { display: none; }
.demo-root[data-phase="3"] .page-b,
.demo-root[data-phase="4"] .page-b { display: flex; }
.demo-root[data-phase="3"] .path-b,
.demo-root[data-phase="4"] .path-b { display: inline; }
.demo-root[data-phase="3"] .mark[data-n="3"],
.demo-root[data-phase="4"] .mark[data-n="3"] { opacity: 1; }

.demo-root[data-phase="1"] .mark[data-n="1"] .ping,
.demo-root[data-phase="2"] .mark[data-n="2"] .ping,
.demo-root[data-phase="3"] .mark[data-n="3"] .ping {
  display: block;
  animation: ttping 1.2s ease-out infinite;
}
@keyframes ttping {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(2.6); opacity: 0; }
}

.demo-root[data-phase="1"] .tip-1,
.demo-root[data-phase="2"] .tip-2,
.demo-root[data-phase="3"] .tip-3,
.demo-root[data-phase="4"] .tip-3 { opacity: 1; }
.tip-1 { left: 9%; top: 38%; transform: translate(24px, -50%); }
.tip-2 { left: 27%; top: 48%; transform: translate(24px, -50%); }
.tip-3 { left: 88%; top: 84%; transform: translate(calc(-100% - 24px), -50%); }

/* steps */

.steps { display: flex; flex-direction: column; border-top: 1px solid var(--color-divider); }
.steps > div {
  padding: 28px var(--pad);
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 4px 12px;
  border-bottom: 1px solid var(--color-divider);
}
.numeral {
  grid-row: span 2;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 44px;
  line-height: 1;
  color: var(--color-accent);
}
.step-title { font-size: 26px; line-height: 1.1; text-transform: uppercase; }
.steps p { font-size: 16px; color: var(--color-neutral-800); }
.steps code { font-size: 14px; }

/* versus, install */

.versus, .install, .private {
  padding: 56px var(--pad);
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.private, .install { border-top: 1px solid var(--color-divider); }

.private-grid { display: flex; flex-direction: column; gap: 16px; }
.private-grid article {
  background: var(--color-neutral-100);
  padding: 22px 20px 24px;
}
.private-grid h3 {
  margin: 0 0 8px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 22px;
  line-height: 1.1;
  letter-spacing: 0;
  text-transform: uppercase;
}
.private-grid p {
  margin: 0;
  font-size: 16px;
  line-height: 1.45;
  color: var(--color-neutral-800);
}
.kicker-label {
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-neutral-700);
}
.versus h2, .install h2, .private h2 {
  font-size: 44px;
  line-height: 0.95;
  letter-spacing: 0;
  text-transform: uppercase;
}
.versus-copy p, .install-copy p, .private-copy p { font-size: 16px; color: var(--color-neutral-800); }
.versus-copy, .install-copy, .private-copy { display: flex; flex-direction: column; gap: 14px; }

.table { width: 100%; border-collapse: collapse; font-size: 15px; }
.table th {
  text-align: left;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--color-text) 60%, transparent);
  padding: 7px 6px;
  border-bottom: 1px solid var(--color-divider);
}
.table td {
  padding: 12px 6px;
  border-bottom: 1px solid color-mix(in srgb, var(--color-text) 8%, transparent);
  vertical-align: baseline;
}
.table tbody tr:hover { background: color-mix(in srgb, var(--color-text) 4%, transparent); }
.table th.th-accent, .table a { color: var(--color-accent-700); }
.table a { font-weight: 700; }
.table a:hover { color: var(--color-accent-800); }
.strong { font-weight: 700; }

.install-body { display: flex; flex-direction: column; gap: 14px; }
.code {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 18px;
  background: var(--color-text);
  color: var(--color-neutral-100);
  border-color: color-mix(in srgb, var(--color-neutral-100) 24%, transparent);
}
.code > .corner { color: color-mix(in srgb, var(--color-neutral-100) 55%, transparent); }
.code code {
  background: none;
  padding: 0;
  color: var(--color-neutral-100);
  font-size: 13px;
  line-height: 1.6;
  word-break: break-all;
}
.code .btn {
  color: var(--color-neutral-100);
  border-color: var(--color-neutral-700);
  font-size: 15px;
  min-height: 44px;
}
.code .btn:hover { color: var(--color-neutral-100); background: color-mix(in srgb, #f5f5f8 8%, transparent); }
.notes { display: flex; flex-direction: column; font-size: 15px; color: var(--color-neutral-800); }
.notes p { margin: 0; padding: 14px 0; border-top: 1px solid var(--color-divider); }
.notes p:last-child { border-bottom: 1px solid var(--color-divider); }

/* use cases */

.uc-d, .uc-follow-d { display: none; }
.uc-hero {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 32px var(--pad) 0;
}
.uc-hero h1 {
  margin: 0;
  font-size: 64px;
  line-height: 0.86;
  letter-spacing: -0.03em;
  text-transform: uppercase;
}
.uc-hero h1 .accent { color: var(--color-accent); }
.uc-hero .lede { margin: 0; font-size: 17px; line-height: 1.5; text-wrap: pretty; }
.uc-index { display: none; }
.uc-index a {
  display: grid;
  grid-template-columns: 40px 1fr auto;
  gap: 8px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-divider);
  color: var(--color-text);
}
.uc-index a:hover { color: var(--color-text); background: var(--color-accent-100); }
.uc-index .ix-n, .uc-index .ix-go {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-accent-700);
}
.uc-index .ix-t {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 18px;
  text-transform: uppercase;
}
.uc-chips {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 24px var(--pad) 0;
}
.uc-chips a {
  flex: none;
  min-height: 36px;
  display: flex;
  align-items: center;
  padding: 0 12px;
  border: 1px solid var(--color-accent);
  border-radius: 0;
  color: var(--color-accent);
  font-size: 13px;
}
.uc-chips a:hover { color: var(--color-accent-800); }
.uc-board { display: flex; flex-direction: column; margin-top: 32px; border-top: 1px solid var(--color-divider); }
.uc-case { order: 0; scroll-margin-top: 16px; }
#uc1 { order: 1; }
#uc2 { order: 2; }
#uc3 { order: 3; }
#uc4 { order: 5; }
#uc5 { order: 6; }
#uc6 { order: 7; }
.uc-case {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 28px var(--pad);
  border-bottom: 1px solid var(--color-divider);
}
.uc-head { display: flex; align-items: baseline; gap: 14px; }
.uc-num {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 40px;
  line-height: 1;
  color: var(--color-accent);
}
.uc-case h2 {
  margin: 0;
  font-size: 26px;
  line-height: 1;
  text-transform: uppercase;
}
.uc-quote {
  margin: 0;
  padding: 8px 12px;
  border-left: 2px solid var(--color-accent);
  background: var(--color-accent-100);
  font-size: 15px;
  font-weight: 500;
  color: var(--color-accent-800);
}
.uc-body { margin: 0; font-size: 15px; line-height: 1.55; color: var(--color-neutral-800); text-wrap: pretty; }
.uc-close { margin: auto 0 0; font-size: 14px; color: var(--color-neutral-700); }

.uc-live {
  order: 4;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 28px var(--pad);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-divider);
}
.uc-live-copy { display: flex; flex-direction: column; gap: 14px; }
.uc-live h2 { margin: 0; font-size: 40px; line-height: 0.95; text-transform: uppercase; }
.uc-live p { margin: 0; font-size: 16px; color: var(--color-neutral-800); }
.uc-live .demo-root { padding: 0; }
.uc-live .btn-primary { font-size: 18px; padding: 14px 20px; }

.uc-fit {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 48px var(--pad);
  border-top: 1px solid var(--color-divider);
}
.uc-fit h2 { margin: 0; font-size: 40px; line-height: 0.95; text-transform: uppercase; }
.uc-fit-rows { display: flex; flex-direction: column; border-top: 1px solid var(--color-divider); }
.fit-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-divider);
}
.fit-x { display: none; }
.fit-label {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 20px;
  text-transform: uppercase;
}
.fit-label::before { content: "✕ "; }
.fit-row p { margin: 0; font-size: 15px; color: var(--color-neutral-800); }

.uc-band {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 48px var(--pad);
  background: var(--color-accent-900);
  color: var(--color-neutral-100);
}
.uc-band h2 {
  margin: 0;
  font-size: 52px;
  line-height: 0.9;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: var(--color-neutral-100);
}
.uc-band-actions { display: flex; flex-direction: column; gap: 12px; }
.uc-record {
  background: var(--color-accent-300);
  border-color: var(--color-accent-300);
  color: var(--color-accent-900);
  font-size: 19px;
  padding: 15px 20px;
}
.uc-record .corner { color: var(--color-accent-300); }
.uc-record:hover, .uc-record:active { background: var(--color-accent-200); border-color: var(--color-accent-200); color: var(--color-accent-900); }
.uc-script {
  color: var(--color-neutral-100);
  border-color: var(--color-accent-700);
  font-size: 17px;
  padding: 13px 20px;
}
.uc-script:hover { color: var(--color-neutral-100); background: color-mix(in srgb, var(--color-neutral-100) 8%, transparent); }

.foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px 24px;
  flex-wrap: wrap;
  padding: 20px var(--pad);
  border-top: 1px solid var(--color-divider);
  font-size: 14px;
  color: var(--color-neutral-700);
}
.foot nav { display: flex; flex-wrap: wrap; gap: 8px 18px; }
.foot a, .foot a:hover { color: inherit; }
.foot .logo, .foot .logo:hover { color: var(--color-text); }
.foot a[aria-current="page"] { color: var(--color-text); }

.top.slim { display: flex; justify-content: space-between; align-items: center; }
.top.slim .home-link { font-size: 15px; color: var(--color-text); }
.top.slim .home-link:hover { color: var(--color-text); }

.doc { padding: 40px var(--pad) 72px; max-width: 740px; }
.doc .kicker-label { display: block; margin-bottom: 12px; }
.doc h1 {
  font-size: 44px;
  line-height: 0.95;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  margin: 0 0 16px;
}
.doc .standfirst { font-size: 18px; line-height: 1.5; color: var(--color-text); margin: 0 0 8px; }
.doc h2 {
  font-size: 26px;
  line-height: 1.05;
  letter-spacing: 0;
  text-transform: uppercase;
  margin: 36px 0 10px;
}
.doc p, .doc li { font-size: 16px; line-height: 1.55; color: var(--color-neutral-800); }
.doc p { margin: 0 0 12px; }
.doc ul { margin: 0 0 12px; padding-left: 1.15em; }
.doc li { margin: 6px 0; }
.doc a { color: var(--color-accent-700); }
.doc a:hover { color: var(--color-accent-800); }

/* tablet: 2a stack, hero copy beside the demo */

@media (min-width: 768px) and (max-width: 1023px) {
  .hero h1 { font-size: clamp(76px, 12vw, 176px); padding: 0 20px; }
  .hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    gap: 24px;
    align-items: start;
    padding: 32px var(--pad) 56px;
  }
  .hero-copy, .hero-demo { padding: 0; }
}

/* desktop 1a */

@media (min-width: 1024px) {
  :root { --pad: 48px; }
  .only-d { display: inline; }
  .only-m { display: none; }

  .top {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    height: 72px;
    padding: 0 48px;
  }
  .logo { justify-self: start; font-size: 24px; }
  .dots i { width: 7px; height: 7px; }
  .dots i:last-child { width: 11px; height: 11px; }
  .top-nav {
    display: flex;
    justify-content: center;
    gap: 32px;
    font-size: 15px;
    font-family: var(--font-body);
    font-weight: 400;
  }
  .top-nav a, .top-nav a:hover { color: var(--color-text); }
  .top-nav a[aria-current="page"] { font-weight: 700; }
  .top-cta { justify-self: end; display: flex; }
  .top-cta .btn { font-size: 16px; padding: 10px 20px; }
  .menu-btn, .menu { display: none; }

  .kicker {
    flex-direction: row;
    justify-content: space-between;
    padding: 64px 48px 0;
    font-size: 13px;
  }
  .hero h1 {
    padding: 0 44px;
    font-size: min(176px, calc((100vw - 96px) * 0.148));
  }
  .hero h1 .break { display: block; }
  .hero-grid {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 24px;
    align-items: start;
    padding: 56px 48px 80px;
  }
  .hero-copy {
    grid-column: 1 / span 4;
    gap: 28px;
    padding: 8px 0 0;
  }
  .lede { font-size: 20px; }
  .cta { gap: 12px; align-items: flex-start; }
  .cta .btn { width: auto; }
  .cta .btn-primary { font-size: 20px; padding: 14px 28px; }
  .cta .btn-secondary { font-size: 18px; padding: 12px 24px; }
  .hero-demo { grid-column: 6 / span 7; padding: 0; }

  .steps { display: grid; grid-template-columns: repeat(3, 1fr); border-bottom: 1px solid var(--color-divider); }
  .steps > div {
    padding: 40px 48px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    border-bottom: 0;
  }
  .steps > div + div { border-left: 1px solid var(--color-divider); }
  .numeral { font-size: 64px; }
  .step-title { font-size: 30px; }

  .versus, .install, .private {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 24px;
    padding: 96px 48px;
  }
  .versus-copy, .install-copy, .private-copy { grid-column: span 4; }
  .versus .table, .install-body, .private-grid { grid-column: 6 / span 7; }
  .versus h2, .install h2, .private h2 { font-size: 56px; }
  .private-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .kicker-label { font-size: 13px; }
  .versus-copy p, .install-copy p, .private-copy p { font-size: 17px; }
  .versus .table { font-size: 17px; }
  .versus .table th:first-child { width: 52%; }
  .versus .table td { padding: 16px 8px; }

  .install-body { gap: 24px; }
  .code { flex-direction: row; align-items: center; gap: 16px; padding: 22px 24px; }
  .code code { flex: 1; font-size: 15px; line-height: 1.4; word-break: normal; overflow-wrap: anywhere; }
  .code .btn { min-height: 0; width: auto; flex: none; }
  .notes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
  .notes p { padding: 0; border: 0; }

  .doc { padding-top: 64px; }
  .doc h1 { font-size: 64px; }
  .doc h2 { font-size: 30px; }
  .foot { padding: 24px 48px; }
}

@media (min-width: 768px) {
  .uc-d { display: block; }
  .uc-m { display: none; }
  .uc-chips { display: none; }
  .uc-hero { padding: 56px 32px 40px; gap: 28px; }
  .uc-hero h1 { font-size: clamp(64px, 10vw, 128px); }
  .uc-hero .lede { font-size: 18px; max-width: 40em; }
  .uc-index {
    display: flex;
    flex-direction: column;
    border-top: 1px solid var(--color-divider);
  }
  .uc-board { display: grid; grid-template-columns: 1fr 1fr; margin-top: 0; }
  .uc-hero h1 .uc-break { display: block; }
  #uc1, #uc2, #uc3, #uc4, #uc5, #uc6 { order: 0; }
  .uc-live { order: 1; }
  .uc-case { gap: 16px; padding: 36px 32px 40px; }
  .uc-case.col-b,
  .uc-case.row-2.col-a,
  .uc-case.row-2.col-c { border-left: 1px solid var(--color-divider); }
  #uc5, #uc6 { border-bottom: 0; }
  .uc-head { flex-direction: column; align-items: flex-start; gap: 16px; }
  .uc-num { font-size: 64px; }
  .uc-case h2 { font-size: 32px; }
  .uc-quote { padding: 10px 14px; font-size: 16px; }
  .uc-body { font-size: 16px; }
  .uc-live {
    grid-column: 1 / -1;
    background: transparent;
    border-bottom: 0;
    border-top: 1px solid var(--color-divider);
    padding: 56px 32px;
    gap: 20px;
  }
  .uc-live h2 { font-size: clamp(40px, 5vw, 56px); }
  .uc-follow-m { display: none; }
  .uc-follow-d { display: inline-flex; align-self: flex-start; width: auto; }
  .uc-live p { font-size: 17px; }
  .fit-label::before { content: none; }
  .fit-x {
    display: block;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 22px;
    color: var(--color-neutral-600);
  }
  .fit-row {
    display: grid;
    grid-template-columns: 40px minmax(140px, 200px) 1fr;
    gap: 16px;
    align-items: baseline;
    padding: 20px 0;
  }
  .fit-label { font-size: 22px; }
  .fit-row p { font-size: 16px; }
  .uc-fit { padding: 64px 32px 72px; }
  .uc-fit h2 { font-size: clamp(40px, 5vw, 56px); }
  .uc-band { padding: 64px 32px; gap: 24px; }
  .uc-band h2 { font-size: clamp(52px, 8vw, 88px); line-height: 0.88; }
  .uc-band .btn { width: auto; }
  .uc-record { font-size: 20px; padding: 14px 24px; }
  .uc-script { font-size: 18px; padding: 12px 24px; }
}

@media (min-width: 1024px) {
  .uc-hero {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 24px;
    align-items: end;
    padding: 72px 48px;
  }
  .uc-hero-copy { grid-column: span 8; display: flex; flex-direction: column; gap: 20px; }
  .uc-hero h1 { font-size: 128px; }
  .uc-hero .lede { font-size: 20px; max-width: 620px; margin-top: 8px; }
  .uc-index { grid-column: 9 / span 4; }
  .uc-board { grid-template-columns: repeat(3, 1fr); }
  .uc-case { border-left: 0; padding: 40px 40px 44px; }
  .uc-case.col-b, .uc-case.col-c { border-left: 1px solid var(--color-divider); }
  .uc-case.row-2 { border-bottom: 0; }
  .uc-case.row-2.col-a { border-left: 0; padding-left: 48px; }
  .uc-case.col-a { padding-left: 48px; }
  .uc-case.col-c { padding-right: 48px; }
  .uc-live {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 24px;
    align-items: center;
    padding: 96px 48px;
  }
  .uc-live-copy { grid-column: span 4; }
  .uc-live .demo-root { grid-column: 6 / span 7; }
  .uc-live h2 { font-size: 56px; }
  .uc-fit {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 24px;
    align-items: start;
    padding: 80px 48px 96px;
  }
  .uc-fit-copy { grid-column: span 4; display: flex; flex-direction: column; gap: 14px; }
  .uc-fit-rows { grid-column: 6 / span 7; }
  .uc-fit h2 { font-size: 56px; }
  .uc-band {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 24px;
    align-items: end;
    padding: 80px 48px;
  }
  .uc-band h2 { grid-column: span 8; font-size: 88px; }
  .uc-band-actions { grid-column: 9 / span 4; }
}

@media (max-width: 767px) {
  .cta .btn, .uc-band .btn, .uc-live > .btn { width: 100%; }
}

@media (min-width: 1440px) {
  .hero h1 { font-size: 176px; }
}

@media (prefers-reduced-motion: reduce) {
  .demo-root .page-a,
  .demo-root .path-a { display: none; }
  .demo-root .page-b { display: flex; }
  .demo-root .path-b { display: inline; }
  .demo-root .mark { opacity: 0; }
  .demo-root .mark[data-n="3"] { opacity: 1; }
  .demo-root .mark .ping { display: none; animation: none; }
  .demo-root .connector { opacity: 0; }
  .demo-root .nav-item { background: var(--color-accent); }
  .demo-root .tip { opacity: 0; transition: none; }
  .demo-root .tip-3 { opacity: 1; }
}