/* hushvault.in: one stylesheet for every page. "Paper Wallet" tokens, as in
   docs/how-hush-works.html; dark ("ink") follows the system setting. */
@font-face { font-family: 'Bricolage Grotesque'; src: url('/fonts/BricolageGrotesque-latin.woff2') format('woff2'); font-weight: 200 800; font-display: swap; }
@font-face { font-family: 'JetBrains Mono'; src: url('/fonts/JetBrainsMono-latin.woff2') format('woff2'); font-weight: 100 800; font-display: swap; }

:root {
  color-scheme: light dark;
  --canvas: #F7F4EC; --card: #FFFFFF; --sunken: #EEE8DA;
  --ink: #141413; --ink-2: #4A4740; --muted: #7A766C; --line: #E2DCCD;
  --accent: #FF4F1A; --on-accent: #141413; --cobalt: #2E4BFF; --ok: #1F9D5C;
  --note-bg: #FFF1EB; --ok-bg: #EAF6EF;
  --code-bg: #141413; --code-ink: #F2EEE3; --code-dim: #8C877B; --code-opaque: #8FA8FF;
}
@media (prefers-color-scheme: dark) {
  :root {
    --canvas: #141413; --card: #1E1D1B; --sunken: #2A2925;
    --ink: #F2EEE3; --ink-2: #C9C3B4; --muted: #8C877B; --line: #34322D;
    --cobalt: #8FA8FF; --ok: #4CC487;
    --note-bg: #2B1E18; --ok-bg: #16261D;
    --code-bg: #0B0B0A;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--canvas); color: var(--ink);
  font: 17px/1.6 'Bricolage Grotesque', system-ui, sans-serif;
}
.wrap { max-width: 860px; margin: 0 auto; padding: 0 16px; }
a { color: var(--cobalt); }
h1, h2, h3 { font-weight: 800; letter-spacing: -0.02em; line-height: 1.1; }
h1 { font-size: clamp(40px, 9vw, 72px); letter-spacing: -0.045em; margin: 8px 0 12px; }
h2 { font-size: 30px; margin: 0 0 8px; }
h3 { font-size: 20px; margin: 28px 0 6px; }
p { margin: 10px 0; }
ul, ol { padding-left: 22px; }
li { margin: 4px 0; }
code, pre, .label, .mono { font-family: 'JetBrains Mono', ui-monospace, monospace; }
code { font-size: 0.85em; background: var(--sunken); padding: 1px 5px; border-radius: 4px; overflow-wrap: anywhere; }
pre {
  background: var(--code-bg); color: var(--code-ink); font-size: 13.5px; line-height: 1.55;
  padding: 14px 16px; border-radius: 14px; overflow-x: auto; margin: 12px 0;
}
pre code { background: none; padding: 0; font-size: inherit; }
pre .c { color: var(--code-dim); }
pre .k { color: var(--accent); }
pre .s { color: var(--code-opaque); }
.label { font-size: 12px; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); }

/* Header and footer */
.top { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 0; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 800; font-size: 22px; letter-spacing: -0.03em; }
.brand .mark { width: 32px; height: 32px; border-radius: 10px; background: var(--accent); color: var(--on-accent); display: grid; place-items: center; font-size: 20px; }
nav { display: flex; flex-wrap: wrap; gap: 4px 18px; font-size: 15px; }
nav a { color: var(--ink-2); text-decoration: none; }
nav a:hover, nav a[aria-current] { color: var(--ink); text-decoration: underline; text-underline-offset: 4px; }
footer { border-top: 1px dashed var(--line); margin-top: 64px; padding: 24px 0 48px; color: var(--muted); font-size: 14px; }
footer nav { margin-bottom: 8px; }

/* Blocks */
section { margin-top: 56px; }
.pass {
  background: var(--accent); color: var(--on-accent); border-radius: 28px;
  padding: 32px 28px; position: relative; overflow: hidden; margin-top: 8px;
}
.pass .label { color: rgba(20, 20, 19, 0.62); }
.pass .big { position: absolute; right: -12px; bottom: -90px; font: 800 280px/1 'Bricolage Grotesque'; opacity: 0.14; pointer-events: none; }
.pass .sub { font-size: 20px; max-width: 34em; position: relative; }
.pass a { color: var(--on-accent); }
.status { display: inline-block; margin-top: 18px; font: 600 13px 'JetBrains Mono', monospace; background: var(--on-accent); color: #F7F4EC; padding: 6px 12px; border-radius: 999px; position: relative; }
.lead { font-size: 21px; line-height: 1.45; margin: 28px 0; }
.lead b { color: var(--accent); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 16px 18px; }
.card h3 { margin-top: 4px; }
.card p:last-child { margin-bottom: 0; }
.grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin: 16px 0; }
.grid.three { grid-template-columns: repeat(3, 1fr); }
.note { background: var(--note-bg); border-left: 4px solid var(--accent); border-radius: 8px; padding: 10px 14px; margin: 14px 0; }
.note.ok { background: var(--ok-bg); border-left-color: var(--ok); }
.muted { color: var(--muted); }
.small { font-size: 14px; }
.toc { columns: 2; column-gap: 32px; margin: 12px 0; padding: 0; list-style: none; }
.toc li { break-inside: avoid; padding: 6px 0; border-bottom: 1px dashed var(--line); margin: 0; }
.toc b { font-family: 'JetBrains Mono', monospace; color: var(--accent); margin-right: 8px; }
.toc a { color: var(--ink); text-decoration: none; }

table { width: 100%; border-collapse: collapse; margin: 12px 0 18px; font-size: 15px; }
.table { overflow-x: auto; }
th { text-align: left; font: 600 12px 'JetBrains Mono', monospace; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); border-bottom: 2px solid var(--ink); padding: 8px; }
td { border-bottom: 1px dashed var(--line); padding: 8px; vertical-align: top; }
.yes { color: var(--ok); font-weight: 700; }
.no { color: var(--accent); font-weight: 700; }

/* Key tree */
.tree .row { display: grid; grid-template-columns: 170px 1fr; gap: 14px; align-items: start; padding: 10px 0; border-bottom: 1px dashed var(--line); }
.tree .row:last-child { border-bottom: 0; }
.tree .k { border-radius: 999px; padding: 5px 12px; font: 700 14px 'JetBrains Mono', monospace; text-align: center; }
.k-pw { background: var(--ink); color: var(--canvas); }
.k-mk { background: var(--sunken); color: var(--ink); }
.k-auth { background: #E6EBFF; color: #2E4BFF; }
.k-wrap { background: var(--accent); color: var(--on-accent); }
.k-vault { background: #EAF6EF; color: #1F9D5C; }
.k-item { color: var(--ink-2); border: 1px dashed var(--ink-2); }

.steps { counter-reset: s; list-style: none; padding: 0; }
.steps li { counter-increment: s; position: relative; padding-left: 32px; margin: 8px 0; }
.steps li::before { content: counter(s); position: absolute; left: 0; top: 2px; width: 22px; height: 22px; border-radius: 50%; background: var(--ink); color: var(--canvas); font: 800 12px/22px 'Bricolage Grotesque'; text-align: center; }

@media (max-width: 639px) {
  body { font-size: 16px; }
  .top { flex-direction: column; align-items: flex-start; }
  .grid, .grid.three { grid-template-columns: 1fr; }
  .toc { columns: 1; }
  .pass { padding: 24px 20px; border-radius: 22px; }
  .pass .sub { font-size: 18px; }
  .lead { font-size: 19px; }
  .tree .row { grid-template-columns: 1fr; gap: 6px; }
  .tree .k { justify-self: start; }
}