/* The heist-night look of docs/SPEC-v0.1.md section 6.2: a deep navy desk with a
   faint blueprint grid, paper cards and warm light. Dark only, like the app. */

:root {
  color-scheme: dark;
  --bg: #0e1424;
  --surface: #182036;
  --surface-raised: #222c46;
  --grid: rgba(42, 58, 94, 0.35);
  --paper: #f2e9d8;
  --ink: #1a1a1f;
  --text: #eef1f7;
  --text-2: #9aa6c2;
  --crew: #2bb3a3;
  --moles: #f2a541;
  --danger: #e5484d;
  --radius: 18px;
  --font: ui-rounded, "SF Pro Rounded", "Hiragino Maru Gothic ProN", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  color: var(--text);
  font: 400 1.0625rem/1.55 var(--font);
  background-color: var(--bg);
  /* Warm light from above the desk, then the blueprint grid. */
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(242, 165, 65, 0.16), transparent 70%),
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: auto, 32px 32px, 32px 32px;
  background-attachment: fixed;
}

.page {
  width: 100%;
  max-width: 40rem;
  margin: 0 auto;
  flex: 1;
  padding: max(2.5rem, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) 2rem max(16px, env(safe-area-inset-left));
}

.eyebrow {
  margin: 0 0 0.25rem;
  color: var(--moles);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2 {
  font-family: var(--font);
  line-height: 1.15;
  margin: 0 0 0.75rem;
}

h1 {
  font-size: clamp(2.25rem, 9vw, 3.25rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1.375rem;
  margin-top: 0;
}

p {
  margin: 0 0 1rem;
}

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

.lead {
  font-size: 1.25rem;
  color: var(--text);
}

.hint {
  color: var(--text-2);
  font-size: 0.9375rem;
}

.mono {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.08em;
}

.button {
  display: inline-block;
  min-height: 48px;
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  background: var(--crew);
  color: var(--bg);
  font-weight: 700;
  text-decoration: none;
}

.button:focus-visible,
a:focus-visible {
  outline: 3px solid var(--moles);
  outline-offset: 3px;
}

.button.secondary {
  background: transparent;
  color: var(--text);
  box-shadow: inset 0 0 0 2px var(--surface-raised);
}

/* The table code, as a row of paper tiles. */
.code {
  display: flex;
  gap: 0.5rem;
  margin: 1.25rem 0 1.5rem;
}

.tile {
  flex: 1;
  max-width: 5.25rem;
  padding: 0.5rem 0;
  border-radius: 14px;
  background: var(--paper);
  color: var(--ink);
  font: 800 clamp(2.5rem, 14vw, 3.75rem) / 1.1 var(--mono);
  text-align: center;
  box-shadow: 0 6px 0 rgba(0, 0, 0, 0.28), 0 14px 28px rgba(0, 0, 0, 0.35);
}

.tile:nth-child(odd) {
  transform: rotate(-1.5deg);
}

.tile:nth-child(even) {
  transform: rotate(1.2deg);
}

.card {
  margin: 2rem 0 0;
  padding: 1.25rem 1.25rem 0.5rem;
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: inset 0 0 0 1px var(--surface-raised);
}

.card ol,
.card ul {
  padding-left: 1.25rem;
  margin: 0 0 1rem;
}

.card li {
  margin-bottom: 0.4rem;
}

.steps {
  display: grid;
  gap: 0.75rem;
  margin: 1.5rem 0;
  padding: 0;
  list-style: none;
}

.steps li {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  gap: 0.75rem;
  align-items: start;
  padding: 0.9rem 1rem;
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
  box-shadow: 0 4px 0 rgba(0, 0, 0, 0.25);
}

.steps li::before {
  content: counter(step);
  counter-increment: step;
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: var(--ink);
  color: var(--paper);
  font: 800 1.125rem var(--mono);
}

.steps {
  counter-reset: step;
}

.steps strong {
  display: block;
  font-weight: 800;
}

.prose h2 {
  margin-top: 2rem;
}

.prose li {
  margin-bottom: 0.35rem;
}

.footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
  padding: 1.5rem 16px calc(1.5rem + env(safe-area-inset-bottom));
  color: var(--text-2);
  font-size: 0.9375rem;
}

.footer a {
  color: var(--text-2);
}