/* fullstack.consulting stage-8. Components use token roles only (css/fullstack.css + css/dna.css).
 * Mobile first; one breakpoint at 48rem, the same one dna.css uses for the ledger. */

@font-face {
  font-family: "Inter";
  src: url("/fonts/inter-subset.woff2") format("woff2");
  font-weight: 400 600;
  font-style: normal;
  font-display: swap;
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background: var(--surface);
  color: var(--ink);
  font: var(--weight-regular) var(--step-0) / var(--lh-body) var(--font-text);
  font-feature-settings: var(--font-features);
  -webkit-font-smoothing: antialiased;
}
ul, ol { list-style: none; }
h1, h2, h3 { font-weight: var(--weight-medium); line-height: var(--lh-heading); letter-spacing: var(--tracking-heading); text-wrap: balance; }
p, li, dd { text-wrap: pretty; }

/* Full-bleed rules, content held to the wrap. */
.ledger, main > section {
  padding-inline: max(var(--gutter), calc((100% - var(--wrap)) / 2 + var(--gutter)));
}

.sprite { position: absolute; inline-size: 0; block-size: 0; overflow: hidden; }
.skip {
  position: absolute; inset-block-start: var(--space-2); inset-inline-start: var(--space-2);
  z-index: var(--z-skip); padding: var(--space-3) var(--space-4);
  background: var(--ink); color: var(--surface); transform: translateY(-200%);
}
.skip:focus { transform: none; }

@media (max-width: 48rem) { .only-wide { display: none !important; } }
@media (min-width: 48.0625rem) { .only-narrow { display: none !important; } }

/* ── Links and buttons (actions are ink, never wine: DECISIONS #39) ── */
.link {
  color: var(--accent);
  text-decoration: underline 1px var(--muted);
  text-underline-offset: 4px;
  transition: text-decoration-color var(--dur-ui) var(--ease);
}
.link:hover { text-decoration-color: currentColor; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-block-size: 3rem; padding-inline: var(--space-4);
  background: var(--accent); color: var(--on-accent);
  border: 1px solid var(--accent); border-radius: var(--radius);
  padding-block: var(--space-2);
  font: inherit; font-weight: var(--weight-medium); line-height: 1.3; text-align: center; text-decoration: none;
  cursor: pointer;
}
.btn:hover { background: var(--surface-alt); color: var(--accent); }
.btn[disabled] { opacity: 0.7; cursor: progress; }

/* ── Ledger header and footer ── */
.site-header .ledger { border-block-start: 6px solid var(--family); }
.cell {
  display: flex; align-items: center;
  min-block-size: var(--tap-min);
  padding: var(--space-3);
  font-size: var(--step--1);
  color: var(--ink-2);
}
.cell:first-child { padding-inline-start: 0; }
.cell:last-child { padding-inline-end: 0; }
.cell .link { display: inline-flex; align-items: center; min-block-size: var(--tap-min); color: var(--ink); font-weight: var(--weight-medium); }
.cell-mark { color: var(--ink); --wm-dot: var(--family); }
.wordmark { display: block; block-size: 1.125rem; inline-size: auto; fill: currentColor; }
.wm-dot { fill: var(--wm-dot, currentColor); }

.band .ledger { grid-template-columns: 1fr; border-block: 0; padding-block: var(--space-4); }
.band .ledger > * + * { border-inline-start: 0; }
.band .cell { padding-inline: 0; color: var(--family-on); }
.band .cell-mark { --wm-dot: currentColor; }
.band .link { color: var(--family-on); text-decoration-color: currentColor; font-weight: var(--weight-regular); }

/* ── Sections ── */
main > section { padding-block: var(--space-6) var(--space-7); row-gap: var(--space-3); }
.section-no { padding-block-start: var(--space-1); }
.content > * + * { margin-block-start: var(--space-4); }
h1 { font-size: var(--step-4); font-weight: var(--weight-display); letter-spacing: var(--tracking-display); line-height: var(--lh-display); max-inline-size: var(--measure-heading); }
h2 { font-size: var(--step-3); max-inline-size: 24ch; }
h2.h2-long { font-size: var(--step-2); max-inline-size: 40ch; }
h3 { font-size: var(--step-1); letter-spacing: -0.01em; }
.eyebrow, .tag {
  font-size: var(--step--1); font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-caps); text-transform: uppercase; color: var(--muted);
}
.content > .eyebrow + h1 { margin-block-start: var(--space-3); }
.lead { font-size: var(--step-1); color: var(--ink-2); max-inline-size: var(--measure-lead); line-height: 1.5; }
.measure { max-inline-size: var(--measure); color: var(--ink-2); }
.strong { color: var(--ink); font-weight: var(--weight-medium); }
.quiet { font-size: var(--step--1); color: var(--muted); }
.quiet .link { color: var(--ink); }

.actions { display: flex; flex-direction: column; align-items: stretch; gap: var(--space-3); }
.actions .link, .row .link { display: inline-flex; align-items: center; justify-content: center; min-block-size: var(--tap-min); font-weight: var(--weight-medium); }
.quiet .link { display: inline-block; padding-block: 0.75rem; }

/* Hero person + proof: a small ledger inside the hero. */
.person { margin-block-start: var(--space-6) !important; border-block-start: 1px solid var(--ledger-line); padding-block-start: var(--space-4); }
.person-name { font-size: var(--step-1); font-weight: var(--weight-medium); }
.person-role { margin-block-start: var(--space-1); font-size: var(--step--1); color: var(--ink-2); max-inline-size: 60ch; }
.stats { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4) var(--space-3); margin-block-start: var(--space-4); }
.stats dt { font-size: var(--step-1); font-weight: var(--weight-medium); font-variant-numeric: tabular-nums; letter-spacing: -0.01em; }
.stats dd { font-size: var(--step--1); color: var(--ink-2); margin-block-start: var(--space-1); }

/* Numbered list (ledger numerals). */
.numbered { counter-reset: n; border-block-start: 1px solid var(--rule); max-inline-size: var(--measure); }
.numbered li {
  counter-increment: n; display: grid; grid-template-columns: 2.5rem 1fr;
  padding-block: var(--space-3); border-block-end: 1px solid var(--rule);
}
.numbered li::before { content: counter(n, decimal-leading-zero); font-size: var(--step--1); color: var(--muted); font-variant-numeric: tabular-nums; padding-block-start: 0.2em; }

/* Ruled cells: focus areas, proof, engagements. */
.cells { display: grid; grid-template-columns: 1fr; border-block-start: 1px solid var(--ledger-line); }
.cells > li { padding-block: var(--space-4); border-block-end: 1px solid var(--rule); }
.cells > li > * + * { margin-block-start: var(--space-2); }
.cells > li p:not(.tag):not(.num) { color: var(--ink-2); }
.cells .num { font-size: var(--step-3); font-weight: var(--weight-medium); letter-spacing: var(--tracking-display); font-variant-numeric: tabular-nums; line-height: 1.1; }
.start { border-block-start-width: 2px; border-block-start-color: var(--ink); }
.start > li { background: var(--surface-alt); padding-inline: var(--space-4); }
.start > li + li { margin-block-start: var(--space-3); }
.start .tag { color: var(--ink); }
.start + .cells { margin-block-start: var(--space-6); }

.disclosure { max-inline-size: var(--measure); padding-inline-start: var(--space-4); border-inline-start: 2px solid var(--ink); font-size: var(--step-1); line-height: 1.5; }
.links { display: flex; flex-wrap: wrap; column-gap: var(--space-4); }
.links li { display: flex; align-items: center; gap: var(--space-2); flex-wrap: wrap; }
.links .link { display: inline-flex; align-items: center; min-block-size: var(--tap-min); }

.row { display: flex; flex-direction: column; gap: var(--space-2); }

.answers { border-block-start: 1px solid var(--ledger-line); max-inline-size: 60rem; }
.answers > div { padding-block: var(--space-4); border-block-end: 1px solid var(--rule); }
.answers dt { font-weight: var(--weight-medium); }
.answers dd { color: var(--ink-2); margin-block-start: var(--space-2); max-inline-size: var(--measure); }

#closing .btn { inline-size: 100%; }

/* ── Contact dialog ── */
dialog {
  inline-size: min(40rem, 100% - 2 * var(--space-3));
  max-block-size: calc(100% - 2 * var(--space-3));
  margin: auto; padding: var(--space-4);
  background: var(--surface-alt); color: var(--ink);
  border: 1px solid var(--ink); border-block-start: 6px solid var(--family); border-radius: var(--radius);
}
dialog::backdrop { background: rgb(17 17 17 / 0.55); }
/* No-JS fallback: links target #contact, so show it in place as a fixed panel. */
dialog:target:not([open]) { display: block; position: fixed; inset: 0; z-index: var(--z-overlay); overflow: auto; }
.dialog-bar { display: flex; justify-content: space-between; align-items: center; border-block-end: 1px solid var(--ledger-line); margin-block-end: var(--space-4); }
.dialog-close { display: inline-flex; align-items: center; min-block-size: var(--tap-min); min-inline-size: var(--tap-min); justify-content: flex-end; color: var(--ink); font-size: var(--step--1); font-weight: var(--weight-medium); text-decoration: underline 1px var(--muted); text-underline-offset: 4px; }
.dialog-lead { font-size: var(--step-1); line-height: 1.4; max-inline-size: 36ch; }
.form { margin-block-start: var(--space-4); display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--space-4); }
.field { display: grid; gap: var(--space-2); }
.field label { font-size: var(--step--1); font-weight: var(--weight-medium); }
input, textarea {
  inline-size: 100%; min-block-size: var(--tap-min); padding: var(--space-2) var(--space-3);
  font: inherit; color: var(--ink); background: var(--surface-alt);
  border: 1px solid var(--muted); border-radius: var(--radius);
}
textarea { resize: vertical; }
input:user-invalid { border-color: var(--error); border-width: 2px; }
.hp { position: absolute; inset-inline-start: -9999px; inline-size: 1px; block-size: 1px; overflow: hidden; }
.form-error {
  padding: var(--space-3); overflow-wrap: anywhere; border: 2px solid var(--error); color: var(--error); font-weight: var(--weight-medium);
}
.form-error::before { content: "\00D7"; display: inline-grid; vertical-align: -0.15em; margin-inline-end: var(--space-2); place-items: center; inline-size: 1.25em; block-size: 1.25em; background: var(--error); color: var(--surface-alt); font-weight: var(--weight-semibold); line-height: 1; }
.form-error[hidden], .form-done[hidden] { display: none; }
.form-error .link { color: var(--error); text-decoration-color: currentColor; }
.form-done { margin-block-start: var(--space-4); font-size: var(--step-1); font-weight: var(--weight-medium); }

/* ── Reveal: only below-the-fold content, only with motion allowed (site.js adds .pending) ── */
@media (prefers-reduced-motion: no-preference) {
  .reveal { transition: opacity var(--dur-reveal) var(--ease), transform var(--dur-reveal) var(--ease); }
  .reveal.pending { opacity: 0; transform: translateY(var(--space-3)); }
}

/* ── Wide ── */
@media (min-width: 48.0625rem) {
  .cell:first-child { padding-inline-start: 0; }
  .cell:last-child { padding-inline-end: var(--space-3); }
  .site-header .ledger { border-block-start-width: 8px; }
  .wordmark { block-size: 1.25rem; }

  .band .ledger { grid-template-columns: var(--ledger-cols); padding-block: 0; }
  .band .ledger > * + * { border-inline-start: 1px solid var(--ledger-line); }
  .band .cell { padding-inline: var(--space-3); }
  .band .cell:first-child { padding-inline-start: 0; }

  main > section { padding-block: var(--space-8); }
  h1 { font-size: var(--step-6); }
  h2.h2-long { font-size: var(--step-3); }
  .actions { flex-direction: row; align-items: center; gap: var(--space-4); }
  .person { margin-block-start: var(--space-8) !important; }
  .stats { grid-template-columns: 1.5fr repeat(3, 1fr); gap: 0; }
  .stats dt { white-space: nowrap; }
  .stats > div { padding-inline: var(--space-4); border-inline-start: 1px solid var(--ledger-line); }
  .stats > div:first-child { padding-inline-start: 0; border-inline-start: 0; }
  .stats dt { font-size: var(--step-2); }

  .cells { grid-template-columns: repeat(2, 1fr); column-gap: var(--space-6); }
  .cells-2 > li + li { margin-block-start: 0; }
  .start { column-gap: var(--space-3); }
  .row { flex-direction: row; justify-content: space-between; align-items: center; gap: var(--space-6); }
  .answers > div { display: grid; grid-template-columns: 16rem 1fr; gap: var(--space-6); }
  .answers dd { margin-block-start: 0; }
  #closing .content { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: end; gap: var(--space-6); }
  #closing .content > * + * { margin-block-start: 0; }
  #closing .btn { inline-size: auto; }
  dialog { padding: var(--space-6); }
}

/* Relationship line: one sentence, link inline but still 44px tall. */
.cell-legal { display: block; align-self: center; }
.cell-legal .link { display: inline-block; min-block-size: 0; padding-block: 0.75rem; }