/* usetruman.com in the brand (T-0291, D-0134). Tokens are docs/brand/README.md's, by name. */

@font-face {
  font-family: 'Instrument Sans';
  src: url('/fonts/instrument-sans-latin-400-normal.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Instrument Sans';
  src: url('/fonts/instrument-sans-latin-600-normal.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'JetBrains Mono';
  src: url('/fonts/jetbrains-mono-latin-400-normal.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  --surface: #f9fafc;
  --surface-container: #f0f3f6;
  --on-surface: #141b24;
  --on-surface-variant: #4c5663;
  --outline: #848d98;
  --outline-variant: #d4dae1;
  --primary: #2463ae;
  --on-primary: #f8fafd;
  --brass: #946c25;
  --plumb-ink: #141b24;

  /* The ink: the one bold place, the same in either theme. */
  --ink: #13233a;
  --on-ink: #eef2f6;
  --on-ink-variant: #b8c4d4;
  --on-ink-lede: #d6dde6;
  --brass-on-ink: #e0b76c;
  --ink-field: #1b2e48;
  --ink-line: #3b5271;
  --ink-primary: #83bdf8;
  --on-ink-primary: #091628;
  --ink-success: #6fd087;
  --ink-error: #fa7c77;

  --sans: 'Instrument Sans', 'Segoe UI Variable Text', 'Segoe UI', system-ui, sans-serif;
  --mono: 'JetBrains Mono', 'Cascadia Mono', ui-monospace, Menlo, Consolas, monospace;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --surface: #0b0f14;
    --surface-container: #12161b;
    --on-surface: #e4e8ed;
    --on-surface-variant: #b0b8c3;
    --outline: #656d76;
    --outline-variant: #292e35;
    --primary: #83bdf8;
    --on-primary: #091628;
    --brass: #e0b76c;
    --plumb-ink: #e4e8ed;
    color-scheme: dark;
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  background: var(--surface);
  color: var(--on-surface);
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font: 400 17px/1.55 var(--sans);
  -webkit-font-smoothing: antialiased;
}

.wrap {
  width: 100%;
  max-width: 44rem;
  margin: 0 auto;
  padding-inline: 20px;
}

h1,
h2 {
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
  text-wrap: balance;
}

a {
  color: var(--primary);
  text-underline-offset: 3px;
}

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.sr {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ── The plumb. The line and weight pivot at the bar; the swing is "working". */
.plumb .swing {
  transform-origin: 32px 16px;
  transform-box: view-box;
}

.plumb.working .swing {
  animation: swing 5s cubic-bezier(0.45, 0, 0.55, 1) infinite alternate;
}

@keyframes swing {
  from {
    transform: rotate(-3deg);
  }
  to {
    transform: rotate(3deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .plumb.working .swing {
    animation: none;
  }
}

/* ── The home page: the hero on ink carries everything. */
.hero {
  flex: 1;
  display: flex;
  align-items: center;
  background: var(--ink);
  color: var(--on-ink);
  padding-block: 12vh 10vh;
}

.lockup {
  display: flex;
  align-items: center;
  gap: 18px;
  margin: 0 0 28px;
}

.lockup .mark {
  width: clamp(64px, 12vw, 88px);
  height: auto;
  flex: none;
}

.lockup .wordmark {
  width: clamp(190px, 38vw, 280px);
  height: auto;
}

.def {
  margin: 0 0 22px;
  font: 400 14px/1.5 var(--mono);
  color: var(--on-ink-variant);
}

.def b {
  font-weight: 400;
  color: var(--brass-on-ink);
}

.def .ipa {
  opacity: 0.7;
}

.lede {
  margin: 0 0 10px;
  font-size: clamp(1.15rem, 2.6vw, 1.3rem);
  color: var(--on-ink-lede);
  max-width: 40ch;
}

.soon {
  margin: 0 0 36px;
  font-weight: 600;
  color: var(--on-ink);
}

/* ── The sign-up, on ink. */
form label {
  display: block;
  margin-bottom: 10px;
  color: var(--on-ink-lede);
}

.row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  max-width: 30rem;
}

input[type='email'] {
  flex: 1 1 14rem;
  min-width: 0;
  padding: 11px 13px;
  font: inherit;
  color: var(--on-ink);
  background: var(--ink-field);
  border: 1px solid var(--ink-line);
  border-radius: 8px;
}

input[type='email']::placeholder {
  color: var(--on-ink-variant);
  opacity: 0.8;
}

button {
  flex: 0 0 auto;
  padding: 11px 18px;
  font: inherit;
  font-weight: 600;
  color: var(--on-ink-primary);
  background: var(--ink-primary);
  border: 0;
  border-radius: 8px;
  cursor: pointer;
}

button[disabled] {
  opacity: 0.6;
  cursor: default;
}

.hero :focus-visible {
  outline-color: var(--ink-primary);
}

.trap {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.status {
  min-height: 1.6em;
  margin: 12px 0 0;
  color: var(--on-ink-lede);
}

.status.ok {
  color: var(--ink-success);
}

.status.bad {
  color: var(--ink-error);
}

.fine {
  margin: 4px 0 0;
  font-size: 0.9rem;
  color: var(--on-ink-variant);
}

.hero a {
  color: var(--on-ink);
}

/* ── The footer, on the surface. */
footer {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  justify-content: center;
  padding: 22px 16px;
  font-size: 0.85rem;
  color: var(--on-surface-variant);
  border-top: 1px solid var(--outline-variant);
}

footer a {
  color: inherit;
}

/* ── Pages of prose, such as the privacy notice. */
.masthead {
  border-bottom: 1px solid var(--outline-variant);
}

.masthead .wrap {
  display: flex;
  align-items: center;
  padding-block: 16px;
}

.masthead a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--on-surface);
  text-decoration: none;
}

.masthead .mark {
  width: 30px;
  height: 30px;
}

.masthead .wordmark {
  width: 96px;
  height: auto;
}

.prose {
  flex: 1;
  padding-block: 48px 64px;
}

.prose h1 {
  margin: 0 0 6px;
  font-size: 2.2rem;
}

.prose h2 {
  margin: 32px 0 8px;
  font-size: 1.15rem;
}

.prose p,
.prose li {
  max-width: 64ch;
}

.prose ul {
  padding-left: 1.2em;
}

.updated {
  margin-top: 0;
  font: 400 13px/1.5 var(--mono);
  color: var(--on-surface-variant);
}