/* Integrity Stack — brand stylesheet */

:root {
  --paper: #f8fafc;
  --paper-alt: #e2e8f0;
  --white: #ffffff;
  --ink: #0f172a;
  --ink-soft: #334155;
  --ink-faint: #64748b;
  --rust: #0891b2;
  --rust-dark: #0e7490;
  --line: #cbd5e1;
  --max: 1720px;
  --serif: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "ui-monospace", SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: clip;
  -webkit-text-size-adjust: 100%;
}

footer.site-footer {
  margin-top: auto;
}

img, svg { max-width: 100%; display: block; }

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s ease;
}

h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 500;
  line-height: 1.12;
  margin: 0 0 0.4em;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.4rem, 5.5vw, 4.4rem); font-weight: 400; }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.5rem); }
h3 { font-size: 1.3rem; }

p { margin: 0 0 1.1em; color: var(--ink-soft); }

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 clamp(28px, 5vw, 72px);
  width: 100%;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--rust-dark);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}
.eyebrow::before {
  content: "";
  width: 18px;
  height: 1px;
  background: var(--rust-dark);
}

/* ---------- Header ---------- */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(248, 250, 252, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}

.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--serif);
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}
.brand .mark { width: 34px; height: 34px; flex-shrink: 0; }

nav.primary-nav ul {
  list-style: none;
  display: flex;
  gap: 30px;
  margin: 0;
  padding: 0;
}
nav.primary-nav a {
  font-size: 0.92rem;
  color: var(--ink-soft);
  position: relative;
  padding-bottom: 3px;
  transition: color 0.25s ease;
}
nav.primary-nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -3px;
  height: 2px;
  background: var(--rust);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}
nav.primary-nav a:hover::after,
nav.primary-nav a.active::after {
  transform: scaleX(1);
}
nav.primary-nav a:hover,
nav.primary-nav a.active { color: var(--ink); }

.nav-actions { display: flex; align-items: center; gap: 18px; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 3px;
  font-size: 0.9rem;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.08);
}
.btn-primary { background: var(--ink); color: var(--white); }
.btn-primary:hover { background: var(--rust); transform: translateY(-2px); box-shadow: 0 8px 16px rgba(8, 145, 178, 0.2); }
.btn-outline { border-color: var(--ink); }
.btn-outline:hover { background: var(--ink); color: var(--white); transform: translateY(-2px); box-shadow: 0 8px 16px rgba(15, 23, 42, 0.15); }

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
}
.menu-toggle span { width: 22px; height: 2px; background: var(--ink); display: block; }

/* ---------- Hero ---------- */
.hero {
  padding: 90px 0 70px;
  border-bottom: 1px solid var(--line);
  animation: heroFade 0.8s ease-out;
}
@keyframes heroFade {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 60px;
  align-items: end;
}
.hero h1 { max-width: 11ch; }
.hero .article-head h1 { max-width: 20ch; }
.hero-lede { font-size: 1.08rem; max-width: 44ch; }
.hero-meta {
  border-left: 1px solid var(--line);
  padding-left: 28px;
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--ink-soft);
  line-height: 1.9;
}
.hero-meta strong { color: var(--ink); font-weight: 500; }

.cta-row { display: flex; gap: 14px; margin-top: 30px; flex-wrap: wrap; }

/* ---------- Sections ---------- */
section { padding: 76px 0; overflow: hidden; }
section.tight { padding: 56px 0; overflow: hidden; }
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 30px;
  margin-bottom: 44px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 26px;
}
.section-head p { margin: 0; max-width: 46ch; }

.divider { border: none; border-top: 1px solid var(--line); margin: 0; }

/* ---------- Cards / grids ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }

.service-card {
  border: 1px solid var(--line);
  background: var(--white);
  padding: 32px 28px;
  border-radius: 4px;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.05);
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 24px rgba(8, 145, 178, 0.12);
  border-color: var(--rust);
}
.service-card .num {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--rust-dark);
  margin-bottom: 18px;
  display: inline-block;
  transform-origin: left center;
  transition: transform 0.3s ease, color 0.3s ease;
}
.service-card:hover .num {
  transform: scale(1.15);
}
.service-card ul { margin: 16px 0 0; padding-left: 18px; color: var(--ink-soft); font-size: 0.92rem; }
.service-card li { margin-bottom: 6px; }

.project-card {
  border: 1px solid var(--line);
  background: var(--white);
  border-radius: 4px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.25s ease, transform 0.3s ease, box-shadow 0.3s ease;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.05);
}
.project-card:hover {
  border-color: var(--rust);
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(8, 145, 178, 0.15);
}
.project-thumb { border-bottom: 1px solid var(--line); background: var(--paper-alt); }
.project-body { padding: 24px 26px 28px; flex: 1; display: flex; flex-direction: column; }
.project-tag {
  font-family: var(--mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
  margin-bottom: 10px;
}
.project-body h3 { margin-bottom: 8px; }
.project-body p { font-size: 0.94rem; margin-bottom: 16px; }
.project-links { margin-top: auto; display: flex; gap: 16px; font-size: 0.86rem; }
.project-links a { border-bottom: 1px solid var(--ink); }
.project-links a:hover { color: var(--rust-dark); border-color: var(--rust-dark); }

.tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.pill {
  font-family: var(--mono);
  font-size: 0.72rem;
  border: 1px solid var(--line);
  padding: 4px 10px;
  border-radius: 100px;
  color: var(--ink-soft);
}

/* ---------- Screenshot placeholders ---------- */
.shot-frame {
  max-width: 380px;
  margin: 0 auto;
}
.shot-frame img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 4px;
}
.shot-frame.is-phone {
  max-width: 300px;
}
.shot-note {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--ink-faint);
  margin-top: 8px;
  text-align: center;
}

/* ---------- FAQ ---------- */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: 28px 40px; }
.faq-item h3 { font-size: 1.08rem; margin-bottom: 8px; }
.faq-item p { font-size: 0.96rem; margin: 0; }

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(135deg, var(--ink) 0%, #1e293b 100%);
  color: var(--paper);
  padding: 66px 0;
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(8, 145, 178, 0.1) 0%, transparent 70%);
  pointer-events: none;
}
.cta-band h2 { color: var(--white); }
.cta-band p { color: #cbd5e1; }
.cta-band .section-head { position: relative; z-index: 1; border-bottom: none; }
.cta-band .btn-primary { background: var(--rust); }
.cta-band .btn-primary:hover { background: var(--white); color: var(--ink); }
.cta-band .btn-outline { border-color: #94a3b8; color: var(--paper); }
.cta-band .btn-outline:hover { background: var(--paper); color: var(--ink); }

/* ---------- Footer ---------- */
footer.site-footer {
  border-top: 1px solid var(--line);
  padding: 56px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-grid h4 {
  font-family: var(--sans);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
  margin-bottom: 16px;
}
.footer-grid ul { list-style: none; margin: 0; padding: 0; }
.footer-grid li { margin-bottom: 10px; font-size: 0.9rem; }
.footer-grid a:hover { color: var(--rust-dark); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--line);
  padding-top: 22px;
  font-size: 0.82rem;
  color: var(--ink-faint);
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- Article / blog ---------- */
.article-head { max-width: 820px; margin: 0 auto 40px; text-align: left; }
.article-body { max-width: 760px; margin: 0 auto; }

/* ---------- Article layout (insights posts) ---------- */
.article-wrap { padding: 56px 0 80px; overflow: visible; }
.article-grid {
  display: grid;
  grid-template-columns: minmax(190px, 240px) minmax(0, 1fr) minmax(240px, 300px);
  gap: 64px;
  align-items: start;
  max-width: 1460px;
  margin: 0 auto;
}

.article-aside {
  position: sticky;
  top: 96px;
  padding-right: 20px;
  border-right: 1px solid var(--line);
}
.article-aside .byline { margin-bottom: 26px; }
.article-toc .toc-label {
  font-family: var(--sans);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
  margin-bottom: 12px;
}
.article-toc ul { list-style: none; margin: 0 0 26px; padding: 0; }
.article-toc li { margin-bottom: 9px; }
.article-toc a {
  font-size: 0.9rem;
  color: var(--ink-soft);
  line-height: 1.45;
  display: block;
  border-left: 2px solid transparent;
  padding-left: 10px;
  margin-left: -12px;
  transition: color .2s ease, border-color .2s ease;
}
.article-toc a:hover { color: var(--rust-dark); border-left-color: var(--rust); }
.article-back { font-size: 0.88rem; color: var(--ink-faint); }
.article-back:hover { color: var(--rust-dark); }

.article-main { max-width: none; min-width: 0; }
.article-main > h1 { margin-bottom: 32px; }
.article-main p, .article-main li { font-size: 1.04rem; line-height: 1.75; }
.article-main h2 { margin-top: 1.7em; scroll-margin-top: 90px; }
.article-main h3 { margin-top: 1.3em; }
.article-main ul, .article-main ol { color: var(--ink-soft); }
.article-main .shot-frame { max-width: 100%; margin: 30px 0; }
.article-main blockquote {
  border-left: 3px solid var(--rust);
  margin: 1.6em 0;
  padding: 4px 0 4px 22px;
  font-family: var(--serif);
  font-size: 1.15rem;
  color: var(--ink);
}
/* right rail */
.article-rail { position: sticky; top: 96px; display: grid; gap: 20px; }
.rail-card {
  border: 1px solid var(--line);
  background: var(--white);
  border-radius: 4px;
  padding: 22px 20px;
}
.rail-label {
  font-family: var(--sans);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
  margin-bottom: 14px;
}
.rail-links { list-style: none; margin: 0; padding: 0; }
.rail-links li { margin-bottom: 16px; }
.rail-links li:last-child { margin-bottom: 0; }
.rail-kicker {
  display: block;
  font-family: var(--mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--rust-dark);
  margin-bottom: 4px;
}
.rail-links a { font-size: 0.93rem; line-height: 1.45; color: var(--ink); display: block; }
.rail-links a:hover { color: var(--rust-dark); }
.rail-cta p { font-size: 0.9rem; }
.rail-cta .btn { width: 100%; justify-content: center; margin-top: 4px; }
.rail-meta {
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--ink-faint);
  margin: 16px 0 0;
  line-height: 1.7;
}

/* tablet / narrow desktop: drop the rail under the article, side by side */
@media (max-width: 1400px) {
  .article-grid { grid-template-columns: minmax(180px, 230px) minmax(0, 1fr); gap: 48px; max-width: 1020px; }
  .article-rail {
    grid-column: 1 / -1;
    position: static;
    grid-template-columns: 1fr 1fr;
    margin-top: 20px;
  }
}

.article-cta {
  margin-top: 60px;
  padding-top: 34px;
  border-top: 1px solid var(--line);
}
.article-cta h2 { margin-top: 0; font-size: 1.5rem; }
.article-cta p { max-width: 52ch; }
.article-body h2 { margin-top: 1.6em; }
.article-body h3 { margin-top: 1.3em; }
.article-body ul, .article-body ol { color: var(--ink-soft); }
.article-body blockquote {
  border-left: 3px solid var(--rust);
  margin: 1.6em 0;
  padding: 4px 0 4px 22px;
  font-family: var(--serif);
  font-size: 1.15rem;
  color: var(--ink);
}
.byline {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-faint);
  margin-bottom: 24px;
}

.post-row {
  display: grid;
  grid-template-columns: 140px 1fr auto;
  gap: 24px;
  align-items: baseline;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}
.post-row:first-child { border-top: 1px solid var(--line); }
.post-row .post-date { font-family: var(--mono); font-size: 0.78rem; color: var(--ink-faint); }
.post-row h3 { margin: 0 0 6px; }
.post-row p { margin: 0; font-size: 0.92rem; }
.post-row .read { font-size: 0.86rem; border-bottom: 1px solid var(--ink); white-space: nowrap; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.contact-list { list-style: none; padding: 0; margin: 30px 0 0; }
.contact-list li { padding: 16px 0; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; }
.contact-list span:first-child { color: var(--ink-faint); font-family: var(--mono); font-size: 0.8rem; text-transform: uppercase; }
form.contact-form { display: flex; flex-direction: column; gap: 16px; }
form.contact-form label { font-family: var(--mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-soft); margin-bottom: -10px; }
form.contact-form input, form.contact-form textarea {
  font-family: var(--sans);
  font-size: 0.95rem;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: var(--white);
  border-radius: 3px;
  color: var(--ink);
}
form.contact-form textarea { resize: vertical; min-height: 120px; }

/* honeypot — hidden from humans, bots fill it in and get rejected */
.hp-field {
  position: absolute !important;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.form-status { margin: 4px 0 0; font-size: 0.92rem; }
.form-status.is-success { color: var(--rust-dark); }
.form-status.is-error { color: #b91c1c; }
.form-status:empty { display: none; }
.form-fallback { margin: 2px 0 0; font-size: 0.86rem; color: var(--ink-faint); }
.form-fallback a { border-bottom: 1px solid var(--line); }
.form-fallback a:hover { color: var(--rust-dark); }
form.contact-form input:focus, form.contact-form textarea:focus { outline: 1.5px solid var(--ink); }

/* ---------- Mobile ---------- */
@media (max-width: 860px) {
  .hero-grid, .grid-3, .grid-2, .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .hero-meta { border-left: none; padding-left: 0; border-top: 1px solid var(--line); padding-top: 18px; }
  nav.primary-nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--paper); border-bottom: 1px solid var(--line); }
  nav.primary-nav.open { display: block; }
  nav.primary-nav ul { flex-direction: column; gap: 0; padding: 10px 28px 20px; }
  nav.primary-nav li { border-bottom: 1px solid var(--line); }
  nav.primary-nav a { display: block; padding: 14px 0; }
  .menu-toggle { display: flex; }
  .nav-actions .btn-outline { display: none; }
  .post-row { grid-template-columns: 1fr; gap: 6px; }
  .faq-list { grid-template-columns: 1fr; gap: 22px; }

  /* article: single column, sidebar collapses to a header block */
  .article-wrap { padding: 36px 0 56px; }
  .article-grid { grid-template-columns: 1fr; gap: 28px; }
  .article-rail { position: static; grid-template-columns: 1fr; margin-top: 8px; }
  .article-aside {
    position: static;
    border-right: none;
    border-bottom: 1px solid var(--line);
    padding-right: 0;
    padding-bottom: 20px;
  }
  .article-toc { display: none; }
  .article-aside .byline { margin-bottom: 12px; }
  .article-main { max-width: 100%; }
  .article-main > h1 { margin-bottom: 22px; }

  /* tighter vertical rhythm so pages aren't endless on a phone */
  .hero { padding: 52px 0 40px; }
  section { padding: 52px 0; }
  section.tight { padding: 38px 0; }
  .cta-band { padding: 46px 0; }
  .grid-2[style*="margin-bottom:90px"] { margin-bottom: 54px !important; }

  /* stack section headers instead of squeezing them side by side */
  .section-head { flex-direction: column; align-items: flex-start; gap: 14px; margin-bottom: 32px; padding-bottom: 20px; }
  .section-head p { max-width: none; }

  /* parallax is disabled on mobile in script.js — neutralise any inline transform */
  [data-parallax] { transform: none !important; }

  /* screenshots sit centred and never crowd the copy */
  .shot-frame { max-width: 100%; margin: 0 auto 8px; }
  .shot-frame.is-phone { max-width: 260px; }

  .cta-row { gap: 10px; }
  .cta-row .btn { flex: 1 1 auto; justify-content: center; min-height: 44px; }
}

@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 8px; }
  .brand { font-size: 1.05rem; }
  .nav-row { padding: 12px 0; }
  h1 { font-size: clamp(2rem, 8vw, 2.6rem); }
  .hero-lede { font-size: 1rem; }
  .cta-row .btn { width: 100%; }
  .shot-frame.is-phone { max-width: 220px; }
  .tag-row { gap: 6px; }
}