/* ---------------------------------------------------------------------------
   Seve Zavala · portfolio
   Design tokens live in :root. Swap --accent / --accent-dark to re-theme.
   --------------------------------------------------------------------------- */

:root {
  --bg: #f7f8f6;
  --bg-tint: #eef1ef;
  --surface: #ffffff;
  --text: #161d1f;
  --muted: #66706f;
  --line: #dfe5e2;

  /* Copper: Arizona's state metal. Change these two to re-theme the site. */
  --accent: #e07a2f;
  --accent-dark: #b4531b;
  --accent-soft: rgba(224, 122, 47, 0.14);
  --accent-on-dark: #f39a5b;

  --dark: #161d1f;
  --dark-surface: #1d2629;
  --dark-line: rgba(255, 255, 255, 0.10);
  --dark-muted: #a9b3b1;

  --max: 1180px;
  --radius: 22px;
  --radius-sm: 14px;
  --pad: clamp(20px, 4vw, 48px);

  --font-display: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  --font-body: "DM Sans", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; margin: 0; line-height: 1.05; }
p { margin: 0; }
ol, ul { margin: 0; padding: 0; list-style: none; }
button { font: inherit; color: inherit; cursor: pointer; }

:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

/* ---------- Shared ---------- */

.section-inner {
  width: min(var(--max), 100% - var(--pad) * 2);
  margin-inline: auto;
}
.section-inner.narrow { max-width: 760px; text-align: center; }

.eyebrow {
  font-family: var(--font-display);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-dark);
}

.section-num {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 500;
  color: var(--accent-dark);
  padding-top: 6px;
}

.arrow { display: inline-block; margin-left: 0.35em; transition: transform 0.25s var(--ease); }
a:hover .arrow, .btn:hover .arrow { transform: translate(2px, -2px); }
.btn-dark:hover .arrow { transform: translateY(3px); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.2em;
  padding: 15px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15.5px;
  line-height: 1;
  border: 1px solid transparent;
  transition: transform 0.25s var(--ease), background 0.25s, border-color 0.25s, color 0.25s;
}
.btn:hover { transform: translateY(-2px); }
.btn-dark { background: var(--dark); color: #fff; }
.btn-outline { background: var(--surface); color: var(--text); border-color: var(--line); }
.btn-outline:hover { border-color: var(--text); }
.btn-accent { background: var(--accent); color: var(--dark); }
.btn-accent:hover { background: var(--accent-on-dark); }
.btn-accent:disabled { opacity: 0.6; cursor: wait; transform: none; }
.btn-small { padding: 11px 20px; font-size: 14.5px; }

.text-link {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15.5px;
  color: var(--accent-dark);
  border-bottom: 1px solid transparent;
  display: inline-block;
}
.text-link:hover { border-bottom-color: currentColor; }

.tag {
  display: inline-block;
  margin-left: 10px;
  padding: 5px 12px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-dark);
  vertical-align: middle;
}

.muted { color: var(--muted); font-weight: 500; }

.dot {
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
  vertical-align: middle;
  margin-right: 8px;
}

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

.skip-link {
  position: absolute;
  top: -48px; left: 16px;
  z-index: 100;
  padding: 10px 16px;
  background: var(--dark);
  color: #fff;
  border-radius: 8px;
  font-weight: 600;
  transition: top 0.2s;
}
.skip-link:focus { top: 12px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 248, 246, 0.86);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.nav {
  width: min(var(--max), 100% - var(--pad) * 2);
  margin-inline: auto;
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand-mark { display: inline-flex; color: var(--text); }
.brand-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.nav-links { display: flex; align-items: center; gap: 22px; }
.nav-links > a:not(.btn) {
  font-size: 15.5px;
  font-weight: 500;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s, color 0.2s;
}
.nav-links > a:not(.btn):hover,
.nav-links > a:not(.btn)[aria-current="true"] { border-bottom-color: var(--accent); }

.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.nav-toggle-bar { width: 18px; height: 2px; background: var(--text); border-radius: 2px; transition: transform 0.25s var(--ease); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:first-child { transform: translateY(4px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:last-child { transform: translateY(-4px) rotate(-45deg); }

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

.hero {
  width: min(var(--max), 100% - var(--pad) * 2);
  margin-inline: auto;
  min-height: calc(100vh - 76px);
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 48px;
  padding: 64px 0;
}

.hero h1 {
  font-size: clamp(58px, 7.2vw, 88px);
  letter-spacing: -0.055em;
  color: var(--accent-dark);
  margin: 14px 0 22px;
}

.hero-tagline {
  font-size: clamp(36px, 4.4vw, 54px);
  letter-spacing: -0.04em;
  line-height: 1.02;
  margin-bottom: 30px;
}

.lede { font-size: 19px; color: var(--muted); max-width: 34rem; }

.cta-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 40px; }

.hero-visual { position: relative; justify-self: end; color: var(--accent); }

.portrait-ring {
  position: relative;
  width: min(390px, 80vw);
  aspect-ratio: 1;
  border: 1px solid rgba(224, 122, 47, 0.45);
  border-radius: 50%;
  display: grid;
  place-items: center;
}
.portrait {
  width: 82%;
  aspect-ratio: 1;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 30px 60px -30px rgba(22, 29, 31, 0.45);
}
.orb {
  position: absolute;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 14px var(--accent-soft);
}
.orb-lg { width: 96px; height: 96px; top: -6px; right: 6px; border-bottom-left-radius: 8px; }
.orb-sm { width: 34px; height: 34px; bottom: 14px; left: -110px; box-shadow: 0 0 0 8px var(--accent-soft); }

.hero-line { position: absolute; top: 18px; left: -160px; }

.hero-caption {
  position: absolute;
  right: 20px;
  bottom: -30px;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text);
}

/* ---------- Focus strip ---------- */

.focus-strip {
  width: min(var(--max), 100% - var(--pad) * 2);
  margin-inline: auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 34px 0;
}
.focus-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 24px;
  border-left: 1px solid var(--line);
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  line-height: 1.5;
}
.focus-item:first-child { border-left: 0; padding-left: 0; }
.focus-item strong { font-size: 44px; letter-spacing: -0.04em; color: var(--accent-dark); line-height: 1; }

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

.section { padding: clamp(88px, 10vw, 130px) 0; }
.section-tint { background: var(--bg-tint); }

.section-head {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 8px;
  margin-bottom: clamp(44px, 6vw, 72px);
}
.section-head h2, .split h2 {
  font-size: clamp(34px, 4.4vw, 50px);
  letter-spacing: -0.035em;
  line-height: 1.05;
  max-width: 22ch;
  margin-top: 14px;
}
.section-sub { margin-top: 26px; font-size: 18px; color: var(--muted); max-width: 44rem; }

.split { display: grid; grid-template-columns: 96px 1fr; gap: 8px; }
.split .section-body .prose { margin-top: 26px; max-width: 44rem; font-size: 18px; color: var(--muted); }
.split .section-body .prose strong { color: var(--text); font-weight: 600; }
.split .text-link { margin-top: 28px; }

/* ---------- Cards ---------- */

.card-grid { display: grid; gap: 20px; }
.card-grid.four { grid-template-columns: repeat(4, 1fr); }
.card-grid.three { grid-template-columns: repeat(3, 1fr); }
.card-grid.two { grid-template-columns: repeat(2, 1fr); }

.card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 28px 32px;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 24px 50px -30px rgba(22, 29, 31, 0.35); border-color: var(--accent); }

.card-index { font-family: var(--font-display); font-weight: 600; font-size: 14px; color: var(--accent-dark); }
.card-icon {
  position: absolute;
  top: 22px; right: 24px;
  width: 54px; height: 54px;
  display: grid; place-items: center;
  border: 1px solid rgba(224, 122, 47, 0.45);
  border-radius: 50%;
  color: var(--accent-dark);
  font-size: 18px;
}
.card-icon::after {
  content: "";
  position: absolute;
  width: 1px; height: 56px;
  background: rgba(224, 122, 47, 0.45);
  bottom: -46px; left: 6px;
  transform: rotate(35deg);
  transform-origin: top;
}
.card h3 { font-size: 24px; letter-spacing: -0.02em; margin: 78px 0 12px; }
.card-plain h3 { margin-top: 34px; }
.card p { color: var(--muted); font-size: 16px; }
.project-card .eyebrow { display: block; }
.project-card h3 { margin-top: 18px; }
.project-card p { margin-top: 12px; }
.project-card .work-meta { display: block; margin-top: 18px; }
.project-card .link-row { margin-top: 20px; display: flex; gap: 20px; }

.work-meta {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--muted);
}

/* ---------- AI house rules ---------- */

.rules {
  margin-top: 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 38px 40px;
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 44px;
}
.rules h3 { font-size: 26px; letter-spacing: -0.02em; margin-top: 16px; max-width: 16ch; }
.rules-note { margin-top: 16px; color: var(--muted); font-size: 16px; }
.rules-list { display: grid; gap: 22px; }
.rules-list li { display: grid; grid-template-columns: 32px 1fr; gap: 14px; }
.rules-list strong { font-family: var(--font-display); color: var(--accent-dark); font-size: 14px; padding-top: 4px; }
.rules-list h4 { font-size: 18px; letter-spacing: -0.01em; }
.rules-list p { color: var(--muted); font-size: 15.5px; margin-top: 6px; }
.ai-production { margin-top: 20px; }

/* ---------- Dark sections ---------- */

.section-dark { background: var(--dark); color: #fff; }
.section-dark .eyebrow, .section-dark .section-num { color: var(--accent-on-dark); }
.section-dark .section-sub { color: var(--dark-muted); }
.section-dark .text-link { color: var(--accent-on-dark); }

.work-card {
  display: flex;
  flex-direction: column;
  background: var(--dark-surface);
  border: 1px solid var(--dark-line);
  border-radius: var(--radius);
  padding: 30px 28px 30px;
  transition: transform 0.3s var(--ease), border-color 0.3s;
}
.work-card:hover { transform: translateY(-4px); border-color: var(--accent-on-dark); }
.work-card h3 { font-size: 26px; letter-spacing: -0.02em; margin: 16px 0 12px; }
.work-card p { color: var(--dark-muted); font-size: 15.5px; flex: 1; }
.work-card .work-meta { color: #d5dcda; margin-top: 20px; }
.work-card .text-link { margin-top: 18px; }

/* ---------- QA Lab ---------- */

.lab {
  background: var(--surface);
  color: var(--text);
  border-radius: var(--radius);
  overflow: hidden;
}
.lab-top {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 40px;
  align-items: center;
  padding: 40px 44px 36px;
}
.lab-top h3 { font-size: 30px; letter-spacing: -0.025em; margin: 26px 0 16px; }
.lab-top p:not(.eyebrow) { color: var(--muted); max-width: 36rem; }

.lab-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 0;
  border: 1px solid var(--line);
  justify-self: end;
  width: 100%;
  max-width: 320px;
}
.lab-stats > div { padding: 26px 10px; text-align: center; border-left: 1px solid var(--line); }
.lab-stats > div:first-child { border-left: 0; }
.lab-stats dd { margin: 0; font-family: var(--font-display); font-weight: 700; font-size: 38px; letter-spacing: -0.03em; color: var(--accent-dark); line-height: 1; }
.lab-stats dt { order: 2; margin-top: 10px; font-family: var(--font-display); font-size: 10.5px; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); }
.lab-stats > div { display: flex; flex-direction: column; }

.lab-body {
  display: grid;
  grid-template-columns: 1fr 1.45fr;
  border-top: 1px solid var(--line);
}

.lab-groups { padding: 22px 44px 30px 44px; }
.lab-group { border-bottom: 1px solid var(--line); }
.lab-group-btn {
  width: 100%;
  display: grid;
  grid-template-columns: 26px 1fr auto 20px;
  align-items: center;
  gap: 14px;
  padding: 16px 0;
  background: none;
  border: 0;
  text-align: left;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 16px;
}
.lab-group-status {
  width: 24px; height: 24px;
  border-radius: 50%;
  display: grid; place-items: center;
  font-size: 13px;
  background: var(--accent-soft);
  color: var(--accent-dark);
}
.lab-group-status.fail { background: rgba(220, 60, 60, 0.15); color: #c02f2f; }
.lab-group-count { font-family: var(--font-body); font-size: 13px; font-weight: 500; color: var(--muted); }
.lab-group-chev { color: var(--muted); transition: transform 0.25s var(--ease); font-size: 14px; text-align: center; }
.lab-group-btn[aria-expanded="true"] .lab-group-chev { transform: rotate(180deg); }
.lab-group-list { padding: 0 0 14px 40px; }
.lab-group-list[hidden] { display: none; }
.lab-group-list li {
  display: grid;
  grid-template-columns: 16px 1fr auto;
  gap: 10px;
  font-size: 14px;
  color: var(--muted);
  padding: 5px 0;
}
.lab-group-list li .ok { color: var(--accent-dark); }
.lab-group-list li .fail { color: #c02f2f; }
.lab-group-list li time { font-family: var(--font-mono); font-size: 12px; }

.lab-runner { background: #0f1517; color: #e6ebe9; display: flex; flex-direction: column; min-height: 420px; }
.runner-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 28px;
  border-bottom: 1px solid var(--dark-line);
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.runner-projects { color: var(--dark-muted); letter-spacing: 0.02em; text-transform: none; font-family: var(--font-body); font-weight: 500; }
.runner-log {
  flex: 1;
  margin: 0;
  padding: 24px 28px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.75;
  white-space: pre-wrap;
  overflow: auto;
  max-height: 340px;
  color: #c8d0ce;
}
.runner-log .log-prompt { color: #fff; font-weight: 500; }
.runner-log .log-pass { color: #7fd6a4; }
.runner-log .log-fail { color: #ff8a80; }
.runner-log .log-skip { color: #d7c27a; }
.runner-log .log-dim { color: #7f8a88; }
.runner-log .log-accent { color: var(--accent-on-dark); }
.runner-actions { display: flex; align-items: center; gap: 18px; padding: 18px 28px 24px; border-top: 1px solid var(--dark-line); }
.runner-hint { font-size: 13px; color: var(--dark-muted); }

.lab-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 22px 44px;
  border-top: 1px solid var(--line);
  background: var(--bg);
}

/* ---------- Timeline ---------- */

.timeline { position: relative; margin-left: 96px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 0; top: 10px; bottom: 10px;
  width: 1px;
  background: var(--text);
  opacity: 0.35;
}
.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 210px 1fr;
  gap: 24px;
  padding: 0 0 64px 46px;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: "";
  position: absolute;
  left: -4px; top: 11px;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--bg-tint);
}
.timeline-date { font-size: 16px; color: var(--muted); padding-top: 4px; letter-spacing: 0.02em; }
.timeline-body h3 { font-size: 25px; letter-spacing: -0.02em; margin-bottom: 8px; }
.timeline-body .role { font-family: var(--font-display); font-weight: 600; font-size: 17px; margin-bottom: 14px; }
.timeline-body p:not(.role) { color: var(--muted); max-width: 52rem; }
.timeline-body p:not(.role) + p { margin-top: 12px; }

/* ---------- Steps ---------- */

.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 28px; }
.steps li { border-top: 1px solid var(--text); padding-top: 22px; }
.steps strong { font-family: var(--font-display); color: var(--accent-dark); font-size: 15px; }
.steps h3 { font-size: 22px; margin: 14px 0 10px; letter-spacing: -0.02em; }
.steps p { color: var(--muted); font-size: 15.5px; }

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

.contact { background: var(--accent); color: var(--dark); padding: clamp(88px, 10vw, 130px) 0; }
.contact .eyebrow { color: var(--dark); }
.contact h2 { font-size: clamp(36px, 4.6vw, 52px); letter-spacing: -0.035em; margin-top: 18px; }
.contact .prose { margin: 22px auto 0; max-width: 34rem; font-size: 18px; }
.contact-links { display: flex; justify-content: center; gap: 30px; margin-top: 40px; }
.contact-links a {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 17px;
  border-bottom: 2px solid var(--dark);
  padding-bottom: 2px;
}
.contact-links a:hover { border-bottom-color: transparent; }

/* ---------- Statement ---------- */

.statement { background: var(--surface); padding: clamp(80px, 9vw, 120px) 0; }
.quote-mark { display: block; font-family: var(--font-display); font-size: 64px; line-height: 0.6; color: var(--accent); margin-bottom: 30px; }
.statement-text { font-family: var(--font-display); font-weight: 700; font-size: clamp(30px, 4.2vw, 48px); letter-spacing: -0.035em; line-height: 1.1; }
.statement-text .accent { color: var(--accent-dark); }
.statement-by {
  display: block;
  margin-top: 30px;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

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

.site-footer { background: var(--dark); color: #fff; padding: 28px 0; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; }
.footer-name, .footer-role, .footer-year {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.footer-role, .footer-year { color: var(--dark-muted); }

/* ---------- Reveal on scroll ---------- */

.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .card, .work-card, .btn, .arrow { transition: none; }
}

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

@media (max-width: 1120px) {
  .nav-links { gap: 16px; }
  .nav-links > a:not(.btn) { font-size: 14.5px; }
}

@media (max-width: 1024px) {
  .card-grid.four { grid-template-columns: repeat(2, 1fr); }
  .card-grid.three { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .lab-top { grid-template-columns: 1fr; }
  .lab-stats { justify-self: start; }
}

@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; }
  .nav-links {
    position: absolute;
    top: 76px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 12px var(--pad) 20px;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links > a:not(.btn) { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .nav-links .btn { margin-top: 12px; justify-content: center; }

  .hero { grid-template-columns: 1fr; min-height: 0; padding: 56px 0 72px; gap: 56px; }
  .hero-visual { justify-self: center; }
  .hero-line, .orb-sm { display: none; }
  .hero-caption { right: 0; }

  .focus-strip { grid-template-columns: repeat(2, 1fr); row-gap: 28px; }
  .focus-item:nth-child(3) { border-left: 0; padding-left: 0; }

  .section-head, .split { grid-template-columns: 1fr; }
  .rules { grid-template-columns: 1fr; gap: 28px; padding: 30px 26px; }
  .section-num { padding-top: 0; }
  .timeline { margin-left: 8px; }
  .timeline-item { grid-template-columns: 1fr; gap: 6px; padding-left: 30px; padding-bottom: 48px; }
  .lab-body { grid-template-columns: 1fr; }
  .lab-groups { padding: 12px 28px 20px; }
  .lab-top, .lab-foot { padding-inline: 28px; }
  .lab-foot { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .card-grid.four, .card-grid.three, .card-grid.two { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .focus-strip { grid-template-columns: 1fr; }
  .focus-item { border-left: 0; padding-left: 0; }
  .contact-links { flex-direction: column; align-items: center; gap: 18px; }
  .runner-actions { flex-direction: column; align-items: flex-start; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .lab-stats dd { font-size: 30px; }
  .lab-group-btn { grid-template-columns: 26px 1fr 20px; }
  .lab-group-count { display: none; }
}