/* vallesAI — shared styles */

:root {
  --paper: #f7f8f5;
  --panel: #ffffff;
  --ink: #182720;
  --muted: #57675d;
  --line: #dde3dc;
  --wash: #edf1ec;
  --accent: #2f5d4a;
  --accent-deep: #234636;
  --focus: #2f5d4a;

  --font-display: "Newsreader", Georgia, "Times New Roman", serif;
  --font-body: "Public Sans", -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --max: 1120px;
  --pad: 24px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16.5px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-deep); text-decoration: underline; text-underline-offset: 3px; }

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
  border-radius: 2px;
}

::selection { background: #cfe0d5; }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding-left: var(--pad);
  padding-right: var(--pad);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: #fff;
  padding: 10px 16px;
  z-index: 100;
}
.skip-link:focus {
  left: 12px;
  top: 12px;
}

/* ---------- Header ---------- */

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(247, 248, 245, 0.92);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 50;
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.01em;
}
.brand:hover { text-decoration: none; color: var(--ink); }
.brand .mark { display: block; }
.brand .ai { color: var(--accent); }

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.site-nav a {
  color: var(--ink);
  font-size: 15px;
  font-weight: 500;
}
.site-nav a:hover { color: var(--accent-deep); text-decoration: none; }
.site-nav a[aria-current="page"] {
  color: var(--accent-deep);
  border-bottom: 2px solid var(--accent);
  padding-bottom: 2px;
}

.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 10px 20px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid var(--accent-deep);
  transition: background-color 140ms ease;
}
.btn:hover { background: var(--accent-deep); color: #fff; text-decoration: none; }

.btn-ghost {
  background: transparent;
  color: var(--accent-deep);
  border: 1px solid var(--line);
}
.btn-ghost:hover { background: var(--wash); color: var(--accent-deep); }

.nav-toggle { display: none; }

/* ---------- Type helpers ---------- */

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-deep);
  margin: 0 0 14px;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1.15;
  margin: 0 0 18px;
}

h1 { font-size: clamp(38px, 5.4vw, 60px); }
h2 { font-size: clamp(28px, 3.4vw, 38px); }
h3 { font-size: 22px; line-height: 1.3; }

.lede {
  font-size: clamp(17px, 2vw, 20px);
  color: var(--muted);
  max-width: 620px;
  margin: 0 0 32px;
}

.muted { color: var(--muted); }

/* ---------- Hero ---------- */

.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.hero .wrap {
  position: relative;
  padding-top: clamp(64px, 10vw, 120px);
  padding-bottom: clamp(64px, 10vw, 120px);
}

.hero-copy { max-width: 640px; position: relative; z-index: 2; }

.hero-contours {
  position: absolute;
  right: -150px;
  top: 50%;
  transform: translateY(-50%);
  width: 700px;
  max-width: 70vw;
  height: auto;
  z-index: 1;
  pointer-events: none;
  color: var(--accent);
  opacity: 0.35;
}

.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; }

@media (prefers-reduced-motion: no-preference) {
  .rise {
    opacity: 0;
    transform: translateY(14px);
    animation: rise 640ms cubic-bezier(0.2, 0.7, 0.2, 1) forwards;
  }
  .rise-2 { animation-delay: 90ms; }
  .rise-3 { animation-delay: 180ms; }
  @keyframes rise {
    to { opacity: 1; transform: none; }
  }
}

/* ---------- Sections ---------- */

.section { padding: clamp(56px, 8vw, 96px) 0; }
.section + .section { border-top: 1px solid var(--line); }
.section-tight { padding: clamp(40px, 6vw, 64px) 0; }

.section-head { max-width: 640px; margin-bottom: 44px; }
.section-head p { color: var(--muted); margin: 0; }

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 28px;
}
.card h3 { margin-top: 0; }
.card p { color: var(--muted); margin: 0; }
.card .more { display: inline-block; margin-top: 16px; font-weight: 600; font-size: 15px; }

/* Process steps — a real sequence, so numbering carries meaning */
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; padding: 0; margin: 0; list-style: none; }
.steps li {
  counter-increment: step;
  border-top: 2px solid var(--accent);
  padding-top: 18px;
}
.steps li::before {
  content: "Step " counter(step);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-deep);
  display: block;
  margin-bottom: 8px;
}
.steps h3 { font-size: 19px; margin-bottom: 8px; }
.steps p { color: var(--muted); font-size: 15px; margin: 0; }

/* Vendor-neutral row */
.stack-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--muted);
  align-items: center;
}
.stack-row span { white-space: nowrap; }

.band {
  background: var(--wash);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

/* Engagement entries */
.entry {
  border-top: 1px solid var(--line);
  padding: 32px 0;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 28px;
}
.entry:last-child { border-bottom: 1px solid var(--line); }
.entry .kind {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-deep);
  padding-top: 6px;
}
.entry h3 { margin-bottom: 10px; }
.entry p { color: var(--muted); margin: 0 0 10px; }
.entry p:last-child { margin-bottom: 0; }

/* Prose pages (legal, about) */
.prose { max-width: 720px; }
.prose h2 { font-size: 24px; margin-top: 44px; }
.prose h3 { font-size: 19px; margin-top: 28px; }
.prose p, .prose li { color: #33443b; }
.prose ul { padding-left: 22px; }
.prose .updated {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 36px;
}

/* CTA banner */
.cta-banner {
  background: var(--ink);
  color: #f2f5f1;
  border-radius: 12px;
  padding: clamp(36px, 5vw, 56px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-banner h2 { margin: 0 0 6px; color: #fff; }
.cta-banner p { margin: 0; color: #b9c6bd; max-width: 480px; }
.cta-banner .btn { background: #fff; color: var(--ink); border-color: #fff; }
.cta-banner .btn:hover { background: #e4eae2; }

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--panel);
  margin-top: clamp(56px, 8vw, 96px);
  font-size: 15px;
}

.footer-main {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding: 56px 0 48px;
}

.footer-brand p {
  color: var(--muted);
  max-width: 300px;
  margin: 14px 0 0;
  font-size: 14.5px;
}

.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 16px;
  font-weight: 500;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: var(--ink); }
.footer-col a:hover { color: var(--accent-deep); }

.footer-bottom {
  border-top: 1px solid var(--line);
  padding: 20px 0 28px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 13.5px;
}
.footer-bottom .legal-links { display: flex; gap: 20px; }
.footer-bottom a { color: var(--muted); }
.footer-bottom a:hover { color: var(--accent-deep); }

.neutrality {
  border-top: 1px solid var(--line);
  padding: 18px 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

/* ---------- Contact ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: start;
}

.contact-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 28px;
}
.contact-card dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 20px;
}
.contact-card dt:first-child { margin-top: 0; }
.contact-card dd { margin: 6px 0 0; }
.contact-card dd a { font-weight: 600; }

/* ---------- 404 ---------- */

.notfound {
  text-align: left;
  padding: clamp(80px, 14vw, 160px) 0;
}

/* ---------- Responsive ---------- */

@media (max-width: 920px) {
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .entry { grid-template-columns: 1fr; gap: 8px; }
  .hero-contours { opacity: 0.18; }
}

@media (max-width: 620px) {
  .grid-3, .grid-2, .steps { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr; gap: 32px; }

  .site-header .wrap { height: auto; padding-top: 14px; padding-bottom: 14px; flex-wrap: wrap; }
  .site-nav { gap: 18px; flex-wrap: wrap; }
  .site-nav .btn { padding: 8px 14px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

/* ---------- Second pass: ledger, charter, articles, FAQ ---------- */

/* Service ledger — ruled rows, not cards */
.ledger { border-top: 1px solid var(--line); }
.ledger-row {
  display: grid;
  grid-template-columns: 64px 0.85fr 1.15fr 150px;
  gap: 28px;
  padding: 34px 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}
.ledger-row .num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent-deep);
}
.ledger-row h3 { margin: 0 0 6px; }
.ledger-row .tag { color: var(--muted); font-size: 14.5px; margin: 0; }
.ledger-row .desc { color: var(--muted); margin: 0; font-size: 15.5px; }
.ledger-row .desc strong { color: var(--ink); font-weight: 600; }
.ledger-row .go { justify-self: end; font-weight: 600; font-size: 15px; white-space: nowrap; }

/* Charter — numbered clauses */
.charter { list-style: none; margin: 0; padding: 0; max-width: 860px; }
.charter li {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 28px;
  padding: 26px 0;
  border-top: 1px solid var(--line);
}
.charter li:last-child { border-bottom: 1px solid var(--line); }
.charter .no {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent-deep);
  padding-top: 4px;
}
.charter h3 { font-size: 20px; margin: 0 0 6px; }
.charter p { margin: 0; color: var(--muted); }

/* FAQ */
.faq { max-width: 760px; }
.faq details { border-top: 1px solid var(--line); }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 20px 36px 20px 0;
  font-weight: 600;
  font-size: 17px;
  position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 18px;
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--accent-deep);
}
.faq details[open] summary::after { content: "–"; }
.faq details > p { margin: 0 0 22px; color: var(--muted); max-width: 680px; }

/* Writing index */
.post-list { border-top: 1px solid var(--line); }
.post {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 28px;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
}
.post .meta {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--muted);
  padding-top: 6px;
  line-height: 1.9;
}
.post h3 { margin: 0 0 8px; }
.post h3 a { color: var(--ink); }
.post h3 a:hover { color: var(--accent-deep); text-decoration: none; }
.post p { margin: 0; color: var(--muted); }

/* Article */
.article { max-width: 680px; }
.article .meta {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 40px;
}
.article h1 { font-size: clamp(32px, 4.4vw, 46px); }
.article h2 { font-size: 24px; margin-top: 44px; }
.article p, .article li { color: #33443b; font-size: 17px; line-height: 1.75; }
.article ul { padding-left: 22px; }
.article blockquote {
  margin: 32px 0;
  padding: 4px 0 4px 24px;
  border-left: 2px solid var(--accent);
  font-family: var(--font-display);
  font-size: 21px;
  line-height: 1.45;
  color: var(--ink);
}
.article .backlink {
  display: inline-block;
  margin-bottom: 28px;
  font-family: var(--font-mono);
  font-size: 13px;
}
.article-foot {
  border-top: 1px solid var(--line);
  margin-top: 48px;
  padding-top: 24px;
  color: var(--muted);
  font-size: 14.5px;
  max-width: 680px;
}

/* Footer: five columns */
.footer-main { grid-template-columns: 1.3fr 1fr 0.9fr 0.9fr 0.9fr; }

@media (max-width: 920px) {
  .ledger-row { grid-template-columns: 48px 1fr; }
  .ledger-row .desc { grid-column: 2; }
  .ledger-row .go { grid-column: 2; justify-self: start; }
  .charter li { grid-template-columns: 72px 1fr; }
  .post { grid-template-columns: 1fr; gap: 10px; }
  .footer-main { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 620px) {
  .ledger-row { grid-template-columns: 1fr; gap: 10px; }
  .ledger-row .desc, .ledger-row .go { grid-column: 1; }
  .charter li { grid-template-columns: 1fr; gap: 8px; }
  .footer-main { grid-template-columns: 1fr; }
}

/* Ownership pillars — like steps, but not a sequence */
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; padding: 0; margin: 0; list-style: none; }
.pillars li { border-top: 2px solid var(--accent); padding-top: 18px; }
.pillars h3 { font-size: 20px; margin-bottom: 8px; }
.pillars p { color: var(--muted); font-size: 15px; margin: 0; }

.footer-brand .loc {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--muted);
  margin-top: 12px;
}

@media (max-width: 920px) { .pillars { grid-template-columns: 1fr 1fr; } }
@media (max-width: 620px) { .pillars { grid-template-columns: 1fr; } }

/* ---------- Light motion (active only when anims.js adds html.anim, */
/* which it skips under prefers-reduced-motion) ---------- */

html.anim .reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 550ms ease, transform 550ms cubic-bezier(0.2, 0.7, 0.2, 1);
}
html.anim .reveal.in { opacity: 1; transform: none; }
html.anim .stack-row span.reveal { transform: none; }

/* Hero topography draws itself on load */
html.anim .hero-contours path {
  stroke-dasharray: 2400;
  stroke-dashoffset: 2400;
  animation: contour-draw 2200ms cubic-bezier(0.4, 0, 0.2, 1) forwards;
}
html.anim .hero-contours path:nth-of-type(2) { animation-delay: 120ms; }
html.anim .hero-contours path:nth-of-type(3) { animation-delay: 240ms; }
html.anim .hero-contours path:nth-of-type(4) { animation-delay: 360ms; }
html.anim .hero-contours path:nth-of-type(5) { animation-delay: 180ms; }
html.anim .hero-contours path:nth-of-type(6) { animation-delay: 300ms; }
html.anim .hero-contours path:nth-of-type(7) { animation-delay: 420ms; }
html.anim .hero-contours path:nth-of-type(8) { animation-delay: 500ms; }
html.anim .hero-contours path:nth-of-type(9) { animation-delay: 380ms; }
html.anim .hero-contours path:nth-of-type(10) { animation-delay: 560ms; }
@keyframes contour-draw { to { stroke-dashoffset: 0; } }

html.anim .hero-contours g,
html.anim .hero-contours circle,
html.anim .hero-contours > text {
  opacity: 0;
  animation: label-fade 700ms ease 1500ms forwards;
}
@keyframes label-fade { to { opacity: 1; } }

/* Micro-interactions */
.btn { transition: background-color 140ms ease, transform 140ms ease, box-shadow 140ms ease; }
.btn:hover { transform: translateY(-1px); box-shadow: 0 2px 10px rgba(24, 39, 32, 0.14); }
.btn:active { transform: none; box-shadow: none; }

.ledger-row .go, .card .more, .article .backlink {
  transition: transform 180ms ease;
}
.ledger-row .go:hover, .card .more:hover { transform: translateX(4px); }
.article .backlink:hover { transform: translateX(-3px); }

.site-header { transition: box-shadow 220ms ease; }
.site-header.scrolled { box-shadow: 0 1px 14px rgba(24, 39, 32, 0.07); }

.faq summary::after { transition: transform 200ms ease; }
.faq details[open] summary::after { transform: rotate(0deg); }

/* ---------- Mobile polish ---------- */

.footer-bottom .legal-links { flex-wrap: wrap; gap: 10px 20px; }
.footer-bottom .legal-links a { white-space: nowrap; }

/* Header: below 720px, restructure into two deliberate rows —
   brand + compact CTA on top, the four links beneath */
@media (max-width: 720px) {
  .site-header .wrap {
    height: auto;
    padding-top: 12px;
    padding-bottom: 12px;
    flex-wrap: wrap;
    row-gap: 10px;
    column-gap: 18px;
  }
  .site-nav { display: contents; }
  .site-header .brand { order: 1; }
  /* full-width break so the links always sit on their own second row */
  .site-header .wrap::after { content: ""; order: 2; flex-basis: 100%; height: 0; }
  .site-nav a { order: 3; font-size: 14.5px; }
  .site-nav .btn {
    order: 2;
    margin-left: auto;
    padding: 7px 13px;
    font-size: 13.5px;
  }
}

@media (max-width: 620px) {
  .hero-contours { display: none; }
  .hero .wrap { padding-top: 52px; padding-bottom: 52px; }
  h1 { font-size: clamp(32px, 9vw, 40px); }
  .lede { font-size: 16.5px; }
  .section-head { margin-bottom: 32px; }

  .footer-main { grid-template-columns: 1fr 1fr; gap: 32px 20px; padding: 44px 0 36px; }
  .footer-brand { grid-column: 1 / -1; }

  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 10px; }

  .cta-banner { padding: 30px 24px; }
  .contact-card { padding: 22px; }
  .card { padding: 22px; }
}