/* ==========================================================================
   人生ラボ — Shared Stylesheet
   Concept: 研究所カタログ（laboratory index card system）
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+JP:wght@400;600;700&family=Noto+Sans+JP:wght@400;500;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --paper: #F7F6F2;
  --paper-raised: #FCFBF8;
  --ink: #1A1A17;
  --ink-soft: #55534C;
  --line: #D8D5CB;
  --line-strong: #B9B5A6;

  /* Lab accent colors — each acts as a specimen tag */
  --lab-career: #1F4D3C;
  --lab-ai: #2B3A8F;
  --lab-childcare: #C68A2E;
  --lab-english: #16706B;
  --lab-money: #7A2E3B;

  --font-display: 'Noto Serif JP', serif;
  --font-body: 'Noto Sans JP', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --measure: 68ch;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-feature-settings: "palt";
  -webkit-font-smoothing: antialiased;
  line-height: 1.7;
}

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
}

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

/* ----- Layout shell ----- */
.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ----- Header ----- */
.site-header {
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: rgba(247, 246, 242, 0.92);
  backdrop-filter: blur(6px);
  z-index: 50;
}

.site-header .wrap {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding-top: 18px;
  padding-bottom: 18px;
}

.wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
}

.wordmark small {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 400;
  color: var(--ink-soft);
  letter-spacing: 0.14em;
  margin-top: 3px;
}

.site-nav {
  display: flex;
  gap: 22px;
  font-size: 0.82rem;
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.site-nav a {
  color: var(--ink-soft);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.site-nav a:hover { color: var(--ink); border-color: var(--line-strong); }

/* ----- Hero ----- */
.hero {
  padding: 88px 0 64px;
  border-bottom: 1px solid var(--line);
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--ink-soft);
  margin: 0 0 20px;
  text-transform: uppercase;
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 1.35;
  margin: 0 0 26px;
  max-width: 16ch;
}

.hero p {
  max-width: var(--measure);
  color: var(--ink-soft);
  font-size: 1.02rem;
  margin: 0;
}

/* ----- Section heading ----- */
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 56px 0 24px;
  gap: 16px;
  flex-wrap: wrap;
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0;
}

.section-head .count {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-soft);
}

/* ----- Lab catalog ----- */
.catalog {
  border-top: 1px solid var(--line);
}

.catalog-entry {
  display: grid;
  grid-template-columns: 64px 1fr auto;
  align-items: center;
  gap: 28px;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
  position: relative;
  transition: padding-left 0.2s ease;
}

.catalog-entry::before {
  content: "";
  position: absolute;
  left: -24px;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--accent, var(--ink));
  opacity: 0;
  transition: opacity 0.2s ease;
}

.catalog-entry:hover::before { opacity: 1; }
.catalog-entry:hover { padding-left: 10px; }

.entry-code {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent, var(--ink-soft));
  font-weight: 500;
}

.entry-body h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  margin: 0 0 8px;
  font-weight: 600;
}

.entry-body p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
  max-width: 56ch;
}

.entry-tags {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.entry-tags span {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--accent, var(--ink-soft));
  border: 1px solid currentColor;
  padding: 3px 8px;
  border-radius: 2px;
  opacity: 0.85;
}

.entry-arrow {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  color: var(--line-strong);
  transition: transform 0.2s ease, color 0.2s ease;
}

.catalog-entry:hover .entry-arrow {
  transform: translateX(4px);
  color: var(--accent, var(--ink));
}

/* Entry accent bindings */
.entry-career { --accent: var(--lab-career); }
.entry-ai { --accent: var(--lab-ai); }
.entry-childcare { --accent: var(--lab-childcare); }
.entry-english { --accent: var(--lab-english); }
.entry-money { --accent: var(--lab-money); }

/* ----- Manifesto strip ----- */
.manifesto {
  padding: 72px 0;
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 48px;
}

.manifesto h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  margin: 0;
  line-height: 1.5;
}

.manifesto-body p {
  color: var(--ink-soft);
  margin: 0 0 16px;
  max-width: var(--measure);
}

.manifesto-body p:last-child { margin-bottom: 0; }

@media (max-width: 720px) {
  .manifesto { grid-template-columns: 1fr; gap: 20px; }
  .catalog-entry { grid-template-columns: 40px 1fr; }
  .entry-arrow { display: none; }
}

/* ----- Footer ----- */
.site-footer {
  padding: 40px 0 56px;
}

.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.site-footer p {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-soft);
  margin: 0;
  letter-spacing: 0.03em;
}

/* ----- Lab page specific ----- */
.lab-header {
  padding: 56px 0 40px;
  border-bottom: 1px solid var(--line);
}

.lab-header .hero-eyebrow { color: var(--accent, var(--ink-soft)); }

.lab-header h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 4.5vw, 2.8rem);
  margin: 0 0 16px;
}

.lab-header p {
  color: var(--ink-soft);
  max-width: var(--measure);
  margin: 0;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-soft);
  margin-bottom: 28px;
}

.back-link:hover { color: var(--ink); }

.article-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin: 40px 0;
}

.article-card {
  background: var(--paper-raised);
  padding: 28px;
}

.article-card .cat {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--accent, var(--ink-soft));
  letter-spacing: 0.08em;
}

.article-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin: 10px 0 8px;
  font-weight: 600;
}

.article-card p {
  font-size: 0.86rem;
  color: var(--ink-soft);
  margin: 0;
}

.placeholder-note {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--line-strong);
  padding: 40px 0;
  text-align: center;
  border: 1px dashed var(--line-strong);
}

@media (max-width: 640px) {
  .article-grid { grid-template-columns: 1fr; }
}