/* GridNest Inc — blue studio design system */
:root {
  --bg: #f2f5fd;
  --bg-deep: #e6ebfa;
  --surface: #ffffff;
  --text: #202d51;
  --muted: #4a5578;
  --accent: #5856b8;
  --accent-dark: #43419a;
  --accent-soft: #e4e3f7;
  --line: #d3dbf2;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --wrap: 1200px;
  --narrow: 760px;
  --gutter: 24px;
  --shadow: 0 18px 40px rgba(32, 45, 81, 0.08);
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; height: auto; }

a { color: var(--accent); text-underline-offset: 3px; }
a:hover { color: var(--accent-dark); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 500;
  line-height: 1.18;
  letter-spacing: -0.01em;
  margin: 0 0 0.5em;
  color: var(--text);
}
h1 { font-size: clamp(30px, 4.2vw, 54px); }
h2 { font-size: clamp(26px, 2.9vw, 38px); }
h3 { font-size: 21px; }
p { margin: 0 0 1em; }

.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 200;
  background: var(--text);
  color: #fff;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
}
.skip-link:focus { top: 12px; color: #fff; }

.wrap { width: min(var(--wrap), 100% - 2 * var(--gutter)); margin-inline: auto; }
.wrap-narrow { width: min(var(--narrow), 100% - 2 * var(--gutter)); margin-inline: auto; }
.wrap-wide { width: min(1320px, 100% - 2 * var(--gutter)); margin-inline: auto; }

.eyebrow {
  display: block;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--accent);
  margin-bottom: 10px;
}
.lead { font-size: 19px; color: var(--muted); }
.muted { color: var(--muted); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(242, 245, 253, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 64px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 650;
  font-size: 20px;
  letter-spacing: -0.01em;
}
.brand:hover { color: var(--text); }
.brand svg { width: 26px; height: 26px; color: var(--accent); flex: none; }
.brand small { font-weight: 400; color: var(--muted); font-size: 15px; }

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text);
  cursor: pointer;
  padding: 0;
}
.nav-toggle:hover { background: var(--bg-deep); }
.nav-toggle .bars, .nav-toggle .bars::before, .nav-toggle .bars::after {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  position: relative;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle .bars::before, .nav-toggle .bars::after { content: ""; position: absolute; left: 0; }
.nav-toggle .bars::before { top: -6px; }
.nav-toggle .bars::after { top: 6px; }
.nav-toggle[aria-expanded="true"] .bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .bars::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .bars::after { transform: translateY(-6px) rotate(-45deg); }

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 6px;
}
.site-nav a {
  display: block;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  color: var(--text);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
}
.site-nav a:hover { background: var(--bg-deep); color: var(--accent-dark); }
.site-nav a[aria-current="page"] { color: var(--accent); box-shadow: inset 0 -2px 0 var(--accent); border-radius: 0; }

.header-cta { display: inline-flex; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 11px 22px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  font: 600 15px/1.2 var(--sans);
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.btn:hover { background: var(--accent-dark); border-color: var(--accent-dark); color: #fff; }
.btn-ghost { background: transparent; color: var(--accent); }
.btn-ghost:hover { background: var(--accent-soft); color: var(--accent-dark); }
.btn-sm { min-height: 38px; padding: 8px 16px; font-size: 14px; }
.text-link {
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.text-link::after { content: "\203A"; font-size: 1.2em; line-height: 1; transition: transform 0.2s ease; }
.text-link:hover::after { transform: translateX(3px); }

/* ---------- Home: hero ---------- */
.quote-band {
  background: var(--bg-deep);
  border-bottom: 1px solid var(--line);
  text-align: center;
  padding: 14px var(--gutter);
  font-size: 16px;
  color: var(--text);
}
.quote-band p { margin: 0; }
.hero-visual { position: relative; margin: 0; background: var(--text); }
.hero-visual img {
  width: 100%;
  height: clamp(420px, 44vw, 640px);
  object-fit: cover;
  object-position: center 40%;
}
.hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(32, 45, 81, 0) 35%, rgba(32, 45, 81, 0.78) 100%);
  pointer-events: none;
}
.hero-copy {
  position: absolute;
  z-index: 1;
  left: 0;
  right: 0;
  bottom: clamp(28px, 4vw, 56px);
}
.hero-copy h1 { color: #fff; max-width: 15ch; font-size: clamp(32px, 3.9vw, 56px); margin-bottom: 14px; }
.hero-copy p { color: #e8ecfb; max-width: 56ch; font-size: 18px; margin-bottom: 22px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-actions .btn-ghost { color: #fff; border-color: rgba(255, 255, 255, 0.7); }
.hero-actions .btn-ghost:hover { background: rgba(255, 255, 255, 0.14); color: #fff; }
.photo-note {
  font-size: 13px;
  color: var(--muted);
  margin-top: 8px;
}
.hero-visual .photo-note {
  position: absolute;
  z-index: 1;
  right: 16px;
  top: 8px;
  color: rgba(255, 255, 255, 0.82);
  margin: 0;
  font-size: 12px;
}

/* ---------- Sections ---------- */
.section { padding: clamp(64px, 8vw, 104px) 0; }
.section-tight { padding: clamp(48px, 6vw, 72px) 0; }
.section-alt { background: var(--surface); border-block: 1px solid var(--line); }
.section-head { margin-bottom: 36px; }
.section-head.center { text-align: center; }
.section-head.center p { margin-inline: auto; max-width: 62ch; }

.story { text-align: center; }
.story p { color: var(--muted); font-size: 18px; }
.story .lead { color: var(--text); }

.usecase-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: 56px;
  border-top: 1px solid var(--line);
}
.usecase-row article { padding: 28px 28px 8px 0; }
.usecase-row article + article { padding-left: 28px; border-left: 1px solid var(--line); }
.usecase-row h3 { font-size: 20px; }
.usecase-row p { font-size: 16px; color: var(--muted); }

/* geometric mark */
.mark {
  display: inline-block;
  width: 34px;
  height: 34px;
  margin-bottom: 14px;
  position: relative;
}
.mark::before, .mark::after { content: ""; position: absolute; }
.mark-a::before { inset: 0; border: 2px solid var(--accent); border-radius: 50%; }
.mark-a::after { width: 12px; height: 12px; background: var(--accent); border-radius: 50%; left: 11px; top: 11px; }
.mark-b::before { inset: 4px; border: 2px solid var(--accent); transform: rotate(45deg); border-radius: 3px; }
.mark-b::after { width: 10px; height: 10px; background: var(--accent-soft); border: 2px solid var(--accent); left: 12px; top: 12px; border-radius: 2px; }
.mark-c::before { left: 0; top: 0; width: 22px; height: 22px; border: 2px solid var(--accent); border-radius: 4px; }
.mark-c::after { right: 0; bottom: 0; width: 22px; height: 22px; background: rgba(88, 86, 184, 0.2); border: 2px solid var(--accent); border-radius: 4px; }

/* approach split */
.split {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}
.split.reverse > :first-child { order: 2; }
.split figure { margin: 0; }
.split figure img, .rounded-photo {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.steps { list-style: none; padding: 0; margin: 24px 0 28px; counter-reset: step; }
.steps li {
  counter-increment: step;
  position: relative;
  padding: 14px 0 14px 52px;
  border-top: 1px solid var(--line);
}
.steps li:last-child { border-bottom: 1px solid var(--line); }
.steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 15px;
  font-family: var(--serif);
  font-size: 18px;
  color: var(--accent);
}
.steps strong { display: block; font-size: 17px; }
.steps span { color: var(--muted); font-size: 15px; }

/* offering index */
.offering-title { font-family: var(--serif); font-weight: 500; }
.offer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.offer-card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: var(--text);
}
.offer-card:hover { color: var(--text); }
.offer-card img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: var(--radius);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.offer-card:hover img { transform: translateY(-3px); box-shadow: var(--shadow); }
.offer-card h3 { font-family: var(--sans); font-weight: 650; font-size: 19px; margin: 16px 0 6px; }
.offer-card p { font-size: 15px; color: var(--muted); margin-bottom: 10px; }
.offer-card .text-link { margin-top: auto; }

.offer-list {
  list-style: none;
  margin: 40px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  border-top: 1px solid var(--line);
}
.offer-list li { padding-top: 24px; }
.offer-list a { text-decoration: none; color: var(--text); display: block; }
.offer-list a:hover h3 { color: var(--accent); }
.offer-list .num { font-family: var(--serif); color: var(--accent); font-size: 18px; }
.offer-list h3 { font-family: var(--sans); font-weight: 650; font-size: 18px; margin: 4px 0 6px; transition: color 0.2s ease; }
.offer-list p { font-size: 15px; color: var(--muted); margin: 0; }

/* about strip */
.about-strip {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: clamp(32px, 5vw, 80px);
  align-items: start;
}
.fact-list { margin: 0; display: grid; gap: 18px; }
.fact-list div { border-top: 1px solid var(--line); padding-top: 14px; }
.fact-list dt { font-size: 13px; font-weight: 600; letter-spacing: 0.04em; color: var(--muted); }
.fact-list dd { margin: 4px 0 0; font-size: 17px; }
.fact-list a { color: var(--text); }
.fact-list a:hover { color: var(--accent); }

/* contact block */
.contact-block {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: clamp(32px, 6vw, 96px);
  align-items: start;
}
.contact-block .label { font-size: 15px; color: var(--muted); margin-bottom: 4px; }
.contact-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
}
.contact-card h3 { font-family: var(--sans); font-weight: 650; font-size: 24px; }
.checklist { list-style: none; padding: 0; margin: 20px 0 28px; }
.checklist li { position: relative; padding: 6px 0 6px 28px; color: var(--muted); }
.checklist li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 14px;
  width: 10px;
  height: 10px;
  border: 2px solid var(--accent);
  border-radius: 2px;
  transform: rotate(45deg);
}

/* ---------- Inner pages ---------- */
.breadcrumb { padding-top: 22px; font-size: 14px; }
.breadcrumb ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; color: var(--muted); }
.breadcrumb li + li::before { content: "/"; margin-right: 6px; color: #9aa3c2; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb [aria-current] { color: var(--text); }

.page-intro { padding: 40px 0 36px; }
.page-intro.center { text-align: center; }
.page-intro.center .lead { max-width: 60ch; margin-inline: auto; }
.page-intro h1 { font-size: clamp(30px, 3.6vw, 48px); }

/* services overview */
.overview-head {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: end;
  padding: 48px 0 40px;
  border-bottom: 1px solid var(--line);
}
.overview-head .lead { margin: 0; }
.jump-nav { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.jump-nav a {
  display: inline-block;
  padding: 6px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
}
.jump-nav a:hover { border-color: var(--accent); color: var(--accent); }

.service-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  padding: clamp(40px, 5vw, 64px) 0;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 80px;
}
.service-row:nth-of-type(even) figure { order: 2; }
.service-row figure { margin: 0; }
.service-row img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; border-radius: var(--radius); }
.service-row .index-num { font-family: var(--serif); font-size: 20px; color: var(--accent); }
.service-row h2 { font-size: clamp(24px, 2.4vw, 32px); margin-top: 6px; }
.service-row .benefit { border-left: 3px solid var(--accent); padding-left: 16px; color: var(--text); }
.tag-list { list-style: none; padding: 0; margin: 0 0 22px; display: flex; flex-wrap: wrap; gap: 8px; }
.tag-list li { font-size: 13px; padding: 4px 10px; background: var(--accent-soft); color: var(--accent-dark); border-radius: 6px; }

.industry-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.industry-grid article { background: var(--surface); padding: 28px; }
.industry-grid h3 { font-size: 20px; }
.industry-grid p { font-size: 15px; color: var(--muted); }
.industry-grid ul { list-style: none; padding: 0; margin: 0; font-size: 14px; }
.industry-grid li { padding: 3px 0; }

/* service detail */
.detail-hero { position: relative; margin: 0; }
.detail-hero img {
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
  border-radius: var(--radius);
}
.glance {
  position: absolute;
  right: 24px;
  top: 24px;
  width: min(320px, 42%);
  background: rgba(32, 45, 81, 0.86);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-sm);
  padding: 20px 22px;
  backdrop-filter: blur(6px);
}
.glance h2 { font-family: var(--sans); color: #fff; font-size: 16px; font-weight: 600; margin-bottom: 10px; }
.glance ul { margin: 0; padding-left: 18px; font-size: 14px; line-height: 1.55; color: #e1e6f8; }
.glance li + li { margin-top: 6px; }

.benefit-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.benefit-grid article { border-top: 2px solid var(--accent); padding-top: 22px; }
.benefit-grid h3 { font-family: var(--sans); font-weight: 650; font-size: 18px; }
.benefit-grid p { font-size: 15px; color: var(--muted); margin: 0; }

.scenario {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
  padding-top: 48px;
  border-top: 1px solid var(--line);
}
.scenario-photos { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.scenario-photos img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; border-radius: var(--radius-sm); }

.apply-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 0 40px; }
.apply-list li { border-top: 1px solid var(--line); padding: 16px 0; }
.apply-list strong { display: block; font-size: 17px; margin-bottom: 2px; }
.apply-list span { color: var(--muted); font-size: 15px; }

.phase-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; list-style: none; padding: 0; margin: 0; counter-reset: phase; }
.phase-grid li { counter-increment: phase; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.phase-grid li::before { content: "Phase " counter(phase); display: block; font-size: 13px; font-weight: 600; color: var(--accent); margin-bottom: 8px; }
.phase-grid strong { display: block; font-family: var(--serif); font-weight: 500; font-size: 20px; margin-bottom: 6px; }
.phase-grid span { font-size: 15px; color: var(--muted); }

.cta-panel {
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(36px, 5vw, 56px) clamp(20px, 5vw, 56px);
}
.cta-panel p { max-width: 58ch; margin-inline: auto; color: var(--muted); }
.cta-panel .hero-actions { justify-content: center; margin-top: 8px; }

.related { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; list-style: none; padding: 0; margin: 0; }
.related a { display: block; height: 100%; padding: 20px; border: 1px solid var(--line); border-radius: var(--radius); text-decoration: none; color: var(--text); background: var(--bg); }
.related a:hover { border-color: var(--accent); }
.related strong { display: block; font-size: 16px; margin-bottom: 4px; }
.related span { font-size: 14px; color: var(--muted); }

/* about page */
.about-hero {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
  padding: 40px 0 clamp(56px, 7vw, 88px);
}
.about-hero img { width: 100%; border-radius: var(--radius); aspect-ratio: 1312 / 816; object-fit: cover; }
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.pillars p { color: var(--muted); font-size: 16px; }
.services-columns { columns: 2; column-gap: 48px; list-style: none; padding: 0; margin: 0; }
.services-columns li { break-inside: avoid; padding: 14px 0; border-top: 1px solid var(--line); }
.services-columns a { font-weight: 600; text-decoration: none; color: var(--text); }
.services-columns a:hover { color: var(--accent); }
.services-columns span { display: block; color: var(--muted); font-size: 15px; }

/* contact page */
.contact-hero { padding: 48px 0 24px; }
.email-display {
  display: inline-block;
  font-family: var(--serif);
  font-size: clamp(26px, 3.6vw, 44px);
  color: var(--accent);
  text-decoration: none;
  word-break: break-word;
  margin: 8px 0 18px;
}
.email-display:hover { text-decoration: underline; }
.copy-row { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.copy-status { font-size: 14px; color: var(--accent-dark); min-height: 1.4em; }
.prep-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.prep-grid article { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.prep-grid h3 { font-family: var(--sans); font-weight: 650; font-size: 18px; }
.prep-grid p { margin: 0; color: var(--muted); font-size: 15px; }
.subject-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.subject-list a {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  padding: 14px 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--text);
  text-decoration: none;
}
.subject-list a:hover { border-color: var(--accent); color: var(--accent-dark); }
.subject-list a::after { content: "\2709"; color: var(--accent); flex: none; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--text);
  color: #cfd6ee;
  padding: 64px 0 28px;
  font-size: 15px;
}
.site-footer a { color: #e7ebfa; text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1.4fr 1.2fr; gap: 40px; }
.site-footer .brand { color: #fff; }
.site-footer .brand svg { color: #b9b8f0; }
.site-footer h2 { font-family: var(--sans); font-size: 14px; font-weight: 600; letter-spacing: 0.04em; color: #fff; margin-bottom: 14px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { padding: 4px 0; }
.site-footer address { font-style: normal; }
.footer-base {
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  color: #a9b3d6;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .phase-grid { grid-template-columns: repeat(2, 1fr); }
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .header-cta { display: none; }
}

@media (max-width: 860px) {
  body { font-size: 16px; }
  .header-inner { min-height: 58px; display: grid; grid-template-columns: 44px 1fr 44px; gap: 8px; }
  .header-inner .brand { justify-self: center; }
  .nav-toggle { display: inline-flex; }
  .site-nav {
    display: none;
    grid-column: 1 / -1;
    padding: 4px 0 14px;
  }
  .site-nav.is-open { display: block; }
  .no-js .site-nav { display: block; }
  .site-nav ul { flex-direction: column; gap: 2px; }
  .site-nav a { padding: 12px 10px; font-size: 17px; border-radius: var(--radius-sm); }
  .site-nav a[aria-current="page"] { box-shadow: inset 3px 0 0 var(--accent); background: var(--bg-deep); }

  .hero-visual { background: none; }
  .hero-visual::after { display: none; }
  .hero-visual img { height: auto; aspect-ratio: 4 / 3; object-position: 40% center; }
  .hero-visual .photo-note { color: var(--muted); position: static; padding: 6px var(--gutter) 0; }
  .hero-copy { position: static; padding: 24px 0 0; }
  .hero-copy h1 { color: var(--text); font-size: clamp(28px, 7.6vw, 38px); max-width: none; }
  .hero-copy p { color: var(--muted); font-size: 17px; }
  .hero-actions .btn-ghost { color: var(--accent); border-color: var(--accent); }
  .hero-actions .btn-ghost:hover { background: var(--accent-soft); color: var(--accent-dark); }

  .story { text-align: left; }
  .usecase-row, .offer-grid, .offer-list, .benefit-grid, .pillars, .related, .prep-grid, .industry-grid { grid-template-columns: 1fr; }
  .usecase-row article, .usecase-row article + article { padding: 22px 0 4px; border-left: 0; border-top: 1px solid var(--line); }
  .usecase-row { border-top: 0; margin-top: 32px; }
  .offer-grid { gap: 16px; }
  .offer-card { position: relative; border-radius: var(--radius); overflow: hidden; }
  .offer-card img { aspect-ratio: 16 / 7; }
  .offer-card h3 {
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    margin: 0;
    aspect-ratio: 16 / 7;
    display: flex;
    align-items: flex-end;
    padding: 12px 14px;
    color: #fff;
    background: linear-gradient(180deg, rgba(32, 45, 81, 0) 40%, rgba(32, 45, 81, 0.85));
    border-radius: var(--radius) var(--radius) 0 0;
  }
  .offer-card p { margin-top: 10px; }
  .split, .about-strip, .contact-block, .overview-head, .service-row, .scenario, .about-hero { grid-template-columns: 1fr; }
  .split.reverse > :first-child { order: 0; }
  .service-row:nth-of-type(even) figure { order: 0; }
  .apply-list { grid-template-columns: 1fr; }
  .phase-grid { grid-template-columns: 1fr; }
  .detail-hero img { aspect-ratio: 4 / 3; }
  .glance { position: static; width: auto; margin-top: 12px; background: var(--text); backdrop-filter: none; }
  .services-columns { columns: 1; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .contact-card { padding: 24px; }
  .overview-head { gap: 20px; padding-top: 32px; }
}

@media (max-width: 420px) {
  :root { --gutter: 18px; }
  .btn { width: 100%; }
  .copy-row .btn { width: auto; }
}

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