:root {
  --navy: #0b1f3a;
  --navy-2: #12345a;
  --blue: #2196f3;
  --blue-dark: #1565c0;
  --orange: #f2994a;
  --text: #333333;
  --muted: #667085;
  --line: #dbe5ef;
  --soft: #f5f7fa;
  --white: #ffffff;
  --shadow: 0 18px 44px rgba(11, 31, 58, 0.1);
  --radius: 8px;
  --max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 86px; }
body {
  margin: 0;
  color: var(--text);
  background:
    linear-gradient(90deg, rgba(11, 31, 58, 0.035) 1px, transparent 1px),
    linear-gradient(180deg, #fbfdff 0%, #f4f8fb 42%, #ffffff 100%);
  background-size: 52px 52px, auto;
  font-family: "Noto Sans JP", "Yu Gothic", "Hiragino Kaku Gothic ProN", system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.8;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  min-height: 68px;
  padding: 0 32px;
  background: rgba(255, 255, 255, 0.88);
  border-bottom: 1px solid rgba(224, 224, 224, 0.78);
  box-shadow: 0 10px 30px rgba(11, 31, 58, 0.08);
  backdrop-filter: blur(14px);
}
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--navy); font-weight: 800; }
.brand-logo { width: 96px; height: auto; display: block; }
.global-nav { display: flex; align-items: center; gap: 4px; max-width: 76vw; overflow-x: auto; font-size: 13px; font-weight: 800; color: #344054; scrollbar-width: none; }
.global-nav::-webkit-scrollbar { display: none; }
.global-nav a { white-space: nowrap; padding: 8px 9px; border: 1px solid transparent; border-radius: 999px; }
.global-nav a:hover, .global-nav a.is-active { color: var(--blue-dark); background: #eaf4ff; border-color: #cde9ff; }
.nav-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); }
.nav-toggle span { display: block; width: 18px; height: 2px; margin: 4px auto; background: var(--navy); }

.hero {
  color: var(--white);
  background:
    radial-gradient(circle at 18% 24%, rgba(33, 150, 243, 0.2), transparent 24%),
    linear-gradient(135deg, #07172b 0%, #0b1f3a 58%, #11385f 100%);
}
.hero-inner {
  width: min(var(--max), calc(100% - 48px));
  min-height: 690px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) 420px;
  align-items: center;
  gap: 64px;
  padding: 88px 0 72px;
}
.eyebrow, .section-kicker {
  margin: 0 0 12px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid rgba(140, 200, 255, 0.32);
  border-radius: 999px;
  color: #b8ddff;
  background: rgba(255, 255, 255, 0.08);
}
.hero h1 { margin: 20px 0 0; font-size: clamp(42px, 6vw, 70px); line-height: 1.08; letter-spacing: 0; }
.hero h1 .hero-title-lang { display: inline-block; white-space: nowrap; font-size: clamp(26px, 4.4vw, 60px); }
.hero-lead { max-width: 700px; margin: 26px 0 0; padding-left: 18px; border-left: 4px solid var(--blue); color: rgba(255, 255, 255, 0.86); font-size: 19px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.button-primary, .button-secondary { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 20px; border-radius: var(--radius); font-weight: 900; }
.button-primary { color: var(--white); background: var(--blue); box-shadow: 0 16px 32px rgba(33, 150, 243, 0.24); }
.button-secondary { color: var(--white); border: 1px solid rgba(255, 255, 255, 0.34); background: rgba(255, 255, 255, 0.08); }
.hero-panel { padding: 26px; border: 1px solid rgba(255, 255, 255, 0.22); border-radius: var(--radius); background: linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.08)); box-shadow: var(--shadow); backdrop-filter: blur(14px); }
.hero-panel::before { content: "BACKEND LANGUAGE FIELD GUIDE"; display: block; margin-bottom: 12px; color: #8cc8ff; font-size: 12px; font-weight: 900; letter-spacing: 0.12em; }
.signal-row { display: grid; grid-template-columns: 96px 1fr; gap: 14px; align-items: center; min-height: 78px; padding: 14px 0; border-bottom: 1px solid rgba(255, 255, 255, 0.16); }
.signal-row:last-child { border-bottom: 0; }
.signal-row span { color: rgba(255, 255, 255, 0.72); font-size: 14px; font-weight: 800; }
.signal-row strong { display: inline-flex; align-items: center; min-height: 44px; padding: 0 12px; border-radius: 7px; background: rgba(255, 255, 255, 0.1); font-size: 20px; }

.section { padding: 96px 0; }
.section-white { background: var(--white); }
.section-tint { background: linear-gradient(180deg, #f5f7fa 0%, #ffffff 100%); }
.section-navy { color: var(--white); background: var(--navy); }
.section-head, .two-column, .role-grid, .compare-block, .learning-block, .translation-board, .keyword-board, .notice-box, .domain-grid, .dossier-layout, .skill-lens, .interview-layout, .counsel-script, .level-grid, .judgement-section, .proposal-grid, .quiz-grid, .summary-grid, .first-map-grid, .app-map-grid, .takeaway-box, .exercise-grid {
  width: min(var(--max), calc(100% - 48px));
  margin-left: auto;
  margin-right: auto;
}
.section-head {
  display: grid;
  grid-template-columns: minmax(120px, 0.2fr) minmax(0, 1fr);
  column-gap: 28px;
  align-items: start;
  margin-bottom: 34px;
}
.section-kicker {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  margin-top: 4px;
  padding: 0 14px;
  border-radius: 999px;
  color: var(--blue-dark);
  background: #eaf4ff;
}
.section-head h2, .section-head p:last-child { grid-column: 2; }
.section-head h2 { margin: 0; color: var(--navy); font-size: clamp(30px, 4vw, 46px); line-height: 1.18; letter-spacing: 0; }
.section-head p:last-child { max-width: 850px; margin: 16px 0 0; color: var(--muted); font-size: 18px; }
.section-head.inverted h2, .section-head.inverted p:last-child { color: var(--white); }
.section-head.inverted p:last-child { opacity: 0.84; }
.section-head.inverted .section-kicker { color: var(--white); background: rgba(255, 255, 255, 0.12); }

.two-column { display: grid; grid-template-columns: minmax(0, 1fr) 390px; gap: 40px; align-items: stretch; }
#why .two-column { grid-template-columns: 1fr; }
.text-block, .role-card, .explain-card, .compare-block, .domain-grid article, .job-ticket, .reading-notes article, .lens-card, .question-box, .level-card, .notice-box, .comment-examples, .quiz-card, .focus-card, .app-map-grid article, .exercise-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 15px 36px rgba(11, 31, 58, 0.07);
}
.text-block { padding: 30px; border-radius: 18px; background: rgba(255, 255, 255, 0.9); }
h3, h4 { color: var(--navy); line-height: 1.4; }
.text-block h3, .compare-block h3, .question-box h3, .comment-examples h3, .notice-box h3, .point-box h4 { margin: 0 0 12px; font-size: 22px; }
.text-block p { margin: 0 0 14px; }
.point-box { margin-top: 24px; padding: 22px 24px; border-left: 5px solid var(--orange); border-radius: var(--radius); background: #fff8f0; }
.point-box p, .notice-box p { margin: 0; }
.takeaway-box {
  margin-bottom: 28px;
  padding: 22px 24px;
  border: 1px solid rgba(33, 150, 243, 0.28);
  border-left: 6px solid var(--blue);
  border-radius: 18px;
  background: linear-gradient(180deg, #ffffff, #f0f8ff);
  box-shadow: 0 15px 36px rgba(11, 31, 58, 0.07);
}
.takeaway-box h3 {
  margin: 0 0 8px;
  color: var(--navy);
  font-size: 21px;
}
.takeaway-box p {
  margin: 0;
  font-weight: 800;
}
.navy-takeaway {
  color: var(--text);
  background: rgba(255, 248, 240, 0.96);
  border-color: rgba(242, 153, 74, 0.62);
  border-left-color: var(--orange);
}
.mini-diagram { display: grid; grid-template-columns: 1fr; gap: 12px; align-content: center; padding: 28px; border-radius: 22px; background: linear-gradient(180deg, #0b1f3a, #11385f); box-shadow: 0 24px 52px rgba(11, 31, 58, 0.18); }
.mini-diagram div { display: grid; place-items: center; min-height: 62px; padding: 12px; border-radius: var(--radius); color: var(--white); background: rgba(255, 255, 255, 0.1); font-weight: 900; text-align: center; }
.mini-diagram span { width: 2px; height: 18px; margin: 0 auto; background: var(--blue); }

.role-grid, .domain-grid, .summary-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.role-grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.first-map-grid, .app-map-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}
.focus-card, .app-map-grid article {
  position: relative;
  overflow: hidden;
  padding: 24px;
  border-radius: 18px;
}
.focus-card {
  min-height: 230px;
  border-top: 6px solid #d9ecff;
}
.focus-card.caution {
  border-top-color: var(--orange);
  background: linear-gradient(180deg, #ffffff, #fff8f0);
}
.focus-card span {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  color: var(--white);
  background: var(--blue);
  font-weight: 900;
}
.focus-card.caution span {
  background: var(--orange);
}
.focus-card h3, .app-map-grid h3 {
  margin: 16px 0 8px;
  color: var(--navy);
  font-size: 21px;
}
.focus-card p, .app-map-grid p {
  margin: 0;
}
.app-map-grid {
  margin-bottom: 26px;
}
.app-map-grid article {
  border-top: 6px solid #d9ecff;
  background: linear-gradient(180deg, #ffffff, #f7fbff);
}
.app-map-grid article:nth-child(3) {
  border-top-color: var(--blue);
}
.app-map-grid article:nth-child(4) {
  border-top-color: var(--orange);
}
.app-map-grid span {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 7px;
  color: var(--white);
  background: var(--navy);
  font-size: 13px;
  font-weight: 900;
}
.role-card, .domain-grid article, .level-card, .summary-grid article { padding: 24px; }
.role-label, .level-card span, .ticket-label { display: inline-flex; align-items: center; min-height: 28px; padding: 0 10px; border-radius: 7px; color: var(--white); background: var(--navy); font-size: 13px; font-weight: 900; }
.role-card h3, .domain-grid h3, .summary-grid h3, .level-card h3 { margin: 14px 0 8px; font-size: 21px; }
.role-card p, .domain-grid p, .summary-grid p, .level-card p { margin: 0; }
.role-card ul, .notice-box ul, .question-box ul, .lens-card ul, .explain-card ul { margin: 16px 0 0; padding-left: 1.2em; }

.diagram {
  width: min(var(--max), calc(100% - 48px));
  margin: 34px auto 0;
  padding: 24px 28px 20px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: linear-gradient(180deg, #ffffff, #f7fbff);
  box-shadow: 0 18px 40px rgba(11, 31, 58, 0.08);
  overflow: hidden;
}
.diagram.on-navy {
  border-color: rgba(140, 200, 255, 0.22);
  background: rgba(255, 255, 255, 0.05);
  box-shadow: 0 24px 52px rgba(0, 0, 0, 0.22);
}
.diagram-title {
  margin: 0 0 14px;
  color: var(--blue-dark);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.diagram.on-navy .diagram-title { color: #8cc8ff; }
.diagram svg { display: block; width: 100%; height: auto; }
.diagram figcaption {
  margin: 16px 4px 2px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 800;
  line-height: 1.6;
  text-align: center;
}
.diagram.on-navy figcaption { color: rgba(255, 255, 255, 0.78); }

.compare-block { margin-top: 34px; padding: 28px; border-radius: 22px; background: rgba(255, 255, 255, 0.82); }
.scroll-hint {
  display: none;
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
}
.table-wrap {
  position: relative;
  overflow-x: auto;
  border-radius: 16px;
  box-shadow: inset 0 0 0 1px var(--line);
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0)),
    linear-gradient(90deg, rgba(11, 31, 58, 0.08), rgba(11, 31, 58, 0));
  background-position: right center, right center;
  background-repeat: no-repeat;
  background-size: 26px 100%, 32px 100%;
}
table { width: 100%; min-width: 760px; border-collapse: collapse; background: var(--white); }
#cases table { table-layout: fixed; }
#cases th:first-child, #cases td:first-child { width: 16%; }
th, td { padding: 16px 18px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { color: var(--white); background: linear-gradient(135deg, #0b1f3a, #134a78); font-weight: 900; }
td:first-child { color: var(--navy); font-weight: 900; }
tbody tr:nth-child(even) { background: var(--soft); }
tbody tr:last-child td { border-bottom: 0; }
.rating-badge { display: inline-grid; place-items: center; width: 28px; height: 28px; margin-right: 8px; border-radius: 50%; color: var(--white); font-weight: 900; }
.rating-badge.triangle { background: #98a2b3; }
.rating-badge.circle { background: var(--blue); }
.rating-badge.double { background: var(--orange); }

.learning-block, .interview-layout, .proposal-grid, .skill-lens, .counsel-script { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
/* #proposal: 注意点を上に全幅 → コメント例3つを縦に並べる（ラベルは独立行） */
#proposal .proposal-grid { grid-template-columns: 1fr; }
#proposal .comment-examples { display: grid; grid-template-columns: 1fr; gap: 16px; }
#proposal .comment-examples blockquote { margin: 0; padding: 22px 26px; font-weight: 500; line-height: 2; }
#proposal .comment-examples blockquote .cmt-lang { display: flex; width: fit-content; align-items: center; min-height: 26px; margin-bottom: 12px; padding: 0 12px; border-radius: 7px; background: var(--navy); color: var(--white); font-size: 13px; font-weight: 900; letter-spacing: 0.02em; }
.explain-card, .question-box, .comment-examples { padding: 26px; }
.explain-card h3 { margin: 0 0 12px; font-size: 22px; }
.translation-board { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin-top: 28px; overflow: hidden; border: 1px solid var(--line); border-radius: 20px; background: var(--white); box-shadow: 0 18px 36px rgba(11, 31, 58, 0.08); }
.translation-board div { padding: 22px; border-right: 1px solid var(--line); }
.translation-board div:last-child { border-right: 0; background: #f7fbff; }
.translation-board h3 { margin: 0 0 8px; font-size: 20px; }
.translation-board p { margin: 0; }

.keyword-board { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.keyword-board div { padding: 24px; border: 1px solid rgba(255, 255, 255, 0.18); border-radius: var(--radius); background: rgba(255, 255, 255, 0.08); }
.keyword-board h3 { margin: 0 0 14px; color: var(--white); font-size: 20px; }
.keyword-board p { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; }
.keyword-board span { display: inline-flex; align-items: center; min-height: 32px; padding: 0 10px; border: 1px solid rgba(140, 200, 255, 0.28); border-radius: 999px; background: rgba(255, 255, 255, 0.12); font-size: 14px; font-weight: 800; }
.notice-box { margin-top: 24px; padding: 24px; border-color: rgba(242, 153, 74, 0.48); background: #fff8f0; color: var(--text); }
.notice-box.light { margin: 0; }

.dossier-layout { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; align-items: stretch; }
.job-ticket { padding: 30px; border-top: 8px solid #d9ecff; }
.job-ticket h3 { margin: 12px 0 18px; font-size: 30px; }
.job-ticket dl { margin: 0; }
.job-ticket div { display: grid; grid-template-columns: 92px 1fr; gap: 18px; padding: 18px 0; border-top: 1px solid var(--line); }
.job-ticket dt { color: var(--blue-dark); font-weight: 900; }
.job-ticket dd { margin: 0; }
.reading-notes { display: grid; gap: 14px; }
.reading-notes article { padding: 22px; }
.reading-notes span { color: var(--orange); font-size: 13px; font-weight: 900; }
.reading-notes h3, .lens-card h3 { margin: 6px 0 8px; font-size: 21px; }
.reading-notes p { margin: 0; }
.lens-card { padding: 26px; border-top: 5px solid var(--blue); }
.lens-card.caution { border-top-color: var(--orange); }
.question-box.accent { border-color: rgba(33, 150, 243, 0.36); background: #f0f8ff; }
.counsel-script div { padding: 24px; border-radius: var(--radius); color: var(--white); background: radial-gradient(circle at 100% 0%, rgba(33, 150, 243, 0.24), transparent 32%), var(--navy); }
.counsel-script span { display: block; margin-bottom: 10px; color: #8cc8ff; font-size: 13px; font-weight: 900; }
.counsel-script p { margin: 0; font-size: 18px; }

.level-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.level-card { position: relative; overflow: hidden; padding: 26px; }
.level-card::before { content: ""; position: absolute; top: 0; right: 0; left: 0; height: 7px; background: var(--blue); }
.level-card strong { display: block; margin: 18px 0 4px; color: var(--navy); }
.judgement-section { margin-top: 34px; }
.mistake-block { border-color: rgba(242, 153, 74, 0.42); background: linear-gradient(180deg, #ffffff, #fff8f0); }
.exercise-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}
.exercise-card {
  padding: 28px;
  border-radius: 22px;
  border-top: 7px solid #d9ecff;
}
.exercise-card h3 {
  margin: 14px 0 18px;
  color: var(--navy);
  font-size: 24px;
}
.exercise-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.exercise-columns div {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f7fbff;
}
.exercise-columns h4 {
  margin: 0 0 10px;
  font-size: 18px;
}
.exercise-columns ul {
  margin: 0;
  padding-left: 1.2em;
}
.question-strip {
  margin: 18px 0;
  padding: 16px 18px;
  border-left: 5px solid var(--orange);
  border-radius: var(--radius);
  background: #fff8f0;
  color: var(--navy);
  font-weight: 900;
}
.question-strip p {
  margin: 0;
}
.exercise-card details {
  border: 1px solid #d8e7f4;
  border-radius: var(--radius);
  background: var(--white);
  overflow: hidden;
}
.exercise-card summary {
  cursor: pointer;
  padding: 16px 18px;
  color: var(--navy);
  background: #eaf4ff;
  font-weight: 900;
}
.exercise-card .answer-hint {
  border-left-color: var(--orange);
}

blockquote { margin: 0 0 14px; padding: 18px 20px; border-radius: var(--radius); background: linear-gradient(90deg, #eaf4ff 0 8px, #f7fbff 8px 100%); color: var(--navy); font-weight: 800; }
blockquote:last-child { margin-bottom: 0; }
.quiz-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.quiz-card { padding: 0; overflow: hidden; }
.quiz-card summary { cursor: pointer; padding: 20px 22px; color: var(--navy); background: #f7fbff; font-weight: 900; list-style-position: inside; }
.quiz-card[open] summary { border-bottom: 1px solid var(--line); }
.answer-hint { padding: 18px 22px 22px; border-left: 6px solid var(--blue); }
.answer-hint strong { color: var(--blue-dark); }
.summary-grid article { border-color: rgba(255, 255, 255, 0.16); background: rgba(255, 255, 255, 0.08); }
.summary-grid h3 { color: var(--white); }
.summary-grid p { color: rgba(255, 255, 255, 0.82); }

.site-footer { display: flex; justify-content: space-between; gap: 20px; padding: 28px 32px; color: rgba(255, 255, 255, 0.78); background: #07172b; font-size: 14px; }
.site-footer p { margin: 0; }
.site-footer a { font-weight: 900; }
.read-progress { position: fixed; top: 0; left: 0; z-index: 40; width: 100%; height: 3px; transform: scaleX(0); transform-origin: 0 50%; background: linear-gradient(90deg, var(--blue), var(--orange)); }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.22, 1, 0.36, 1); }
.reveal.is-visible { opacity: 1; transform: none; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid var(--blue); outline-offset: 2px; border-radius: 6px; }

@media (max-width: 980px) {
  .site-header { padding: 0 20px; }
  .nav-toggle { display: inline-block; }
  .global-nav { position: absolute; top: 72px; right: 16px; left: 16px; display: none; flex-direction: column; align-items: stretch; max-width: none; padding: 10px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); box-shadow: var(--shadow); }
  .global-nav.is-open { display: flex; }
  .global-nav a { border-radius: var(--radius); }
  .section-head { grid-template-columns: 1fr; row-gap: 8px; }
  .section-head h2, .section-head p:last-child { grid-column: 1; }
  .hero-inner, .two-column, .learning-block, .translation-board, .dossier-layout, .skill-lens, .interview-layout, .counsel-script, .proposal-grid { grid-template-columns: 1fr; }
  .hero-inner { min-height: auto; padding-top: 64px; gap: 34px; }
  .role-grid, .role-grid.three, .domain-grid, .summary-grid, .first-map-grid, .app-map-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .keyword-board, .level-grid, .quiz-grid { grid-template-columns: 1fr; }
  .translation-board div { border-right: 0; border-bottom: 1px solid var(--line); }
  .translation-board div:last-child { border-bottom: 0; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .section { padding: 64px 0; }
  .section-head, .two-column, .role-grid, .compare-block, .learning-block, .translation-board, .keyword-board, .notice-box, .domain-grid, .dossier-layout, .skill-lens, .interview-layout, .counsel-script, .level-grid, .judgement-section, .proposal-grid, .quiz-grid, .summary-grid, .hero-inner, .first-map-grid, .app-map-grid, .takeaway-box, .exercise-grid, .diagram { width: min(100% - 32px, var(--max)); }
  .diagram { padding: 18px 16px 14px; }
  .hero h1 { font-size: 38px; }
  .hero-lead { font-size: 17px; }
  .role-grid, .role-grid.three, .domain-grid, .summary-grid, .first-map-grid, .app-map-grid, .exercise-columns { grid-template-columns: 1fr; }
  .scroll-hint { display: block; }
  .table-wrap { margin-right: -16px; border-radius: 16px 0 0 16px; }
  .job-ticket div { grid-template-columns: 1fr; gap: 4px; }
  .site-footer { flex-direction: column; padding: 24px 20px; }
}

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