/* Top page only. Shared layout is in portal-shell.css. */
.lab-hero { display: grid; grid-template-columns: 1.05fr 1fr; align-items: center; gap: 50px; padding-block: 78px 70px; }
.lab-hero h1 { font-size: clamp(43px, 5.25vw, 76px); line-height: 1.32; letter-spacing: -.07em; font-weight: 800; }
.lab-hero h1 > span { display: block; white-space: nowrap; }
.lab-hero h1 em { font-style: normal; position: relative; z-index: 0; }
.lab-hero h1 em::after { content: ""; position: absolute; left: 0; right: -.04em; height: .27em; bottom: .07em; background: var(--yellow); z-index: -1; transform: rotate(-2deg); }
.lab-hero-copy > p { margin-top: 29px; font-size: 15px; line-height: 2; color: #53574c; }
.lab-hero-actions { display: flex; align-items: center; gap: 25px; margin-top: 32px; }
.lab-button { display: inline-flex; align-items: center; justify-content: space-between; gap: 32px; min-height: 54px; padding: 15px 23px; border-radius: 7px; background: var(--ink); color: #fff !important; text-decoration: none; font-size: 13px; font-weight: 700; transition: background .2s, transform .2s; }
.lab-button:hover { background: #454b37; transform: translateY(-2px); }
.lab-arrow { width: 20px; height: 20px; flex-shrink: 0; }
.lab-text-link { display: inline-flex; align-items: center; gap: 12px; font-size: 13px; font-weight: 700; text-underline-offset: 5px; }
.lab-hero-art { position: relative; padding: 12px 6px; }
.lab-hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; transform: rotate(-5deg); }
.lab-mini { height: 201px; border-radius: 14px; overflow: hidden; position: relative; text-decoration: none; transition: transform .25s; }
.lab-mini:hover { transform: translateY(-6px) rotate(2deg); }
.lab-mini > span { position: absolute; z-index: 1; left: 18px; top: 16px; font-size: 13px; font-weight: 700; letter-spacing: -.03em; }
.lab-mini .lab-art { position: absolute; width: 122%; height: 112%; left: -11%; top: 9%; }
.lab-mini-gift { background: #ebc3b5; }
.lab-mini-mist { background: #c7dcd9; }
.lab-mini-books { background: #f0d173; }
.lab-mini-furusato { background: #cfd9bb; }
.lab-star { position: absolute; width: 91px; height: 91px; top: -22px; right: -20px; transform: rotate(9deg); pointer-events: none; }
.lab-hero-note { display: flex; justify-content: space-between; margin: 31px 4px 0; font-size: 10px; letter-spacing: .1em; font-family: "Courier New", monospace; }
.lab-index-line { display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding-block: 20px; font-size: 12px; color: var(--muted); }
.lab-index-line strong { color: var(--ink); font-weight: 700; }
.lab-index-line .lab-dot { display: inline-block; height: 7px; width: 7px; border-radius: 50%; background: #829649; margin-right: 9px; }
.lab-index-line > span:last-child { font-family: "Courier New", monospace; letter-spacing: .12em; font-size: 11px; }
.lab-section { padding-block: 76px; scroll-margin-top: 26px; }
.lab-section-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 24px; margin-bottom: 30px; }
.lab-section-heading h2 { font-size: 32px; letter-spacing: -.05em; font-weight: 800; }
.lab-section-heading > span { font: 11px "Courier New", monospace; letter-spacing: .12em; color: var(--muted); }
.lab-feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px 26px; }
.lab-feature { min-width: 0; }
.lab-feature-visual { display: block; position: relative; border-radius: 12px; height: 292px; overflow: hidden; text-decoration: none; }
.lab-feature-visual::after { content: "↗"; position: absolute; right: 20px; bottom: 20px; display: grid; place-items: center; width: 39px; height: 39px; border-radius: 50%; background: rgba(255,255,255,.7); font-size: 22px; transition: transform .2s, background .2s; }
.lab-feature-visual:hover::after { transform: rotate(45deg); background: #fff; }
.lab-feature-visual > .lab-art { width: 100%; height: 100%; transition: transform .35s; }
.lab-feature-visual:hover > .lab-art { transform: scale(1.04); }
.lab-feature-word { position: absolute; left: 25px; top: 23px; font-size: 25px; font-weight: 700; letter-spacing: -.055em; }
.lab-feature-category { position: absolute; right: 23px; top: 26px; font-size: 11px; border: 1px solid currentColor; border-radius: 20px; padding: 5px 10px; }
.lab-feature-gift { background: #ebc3b5; }
.lab-feature-mist { background: #c7dcd9; }
.lab-feature-books { background: #f0d173; }
.lab-feature-furusato { background: #cfd9bb; }
.lab-feature-info { padding-top: 21px; }
.lab-feature-info h3 { font-size: 20px; letter-spacing: -.04em; }
.lab-feature-info h3 a { text-decoration: none; }
.lab-feature-info h3 a:hover { text-decoration: underline; text-underline-offset: 5px; }
.lab-feature-info p { margin-top: 10px; color: var(--muted); font-size: 13px; line-height: 1.95; }
.lab-feature-links { display: flex; gap: 22px; margin-top: 16px; }
.lab-feature-links a { font-size: 12px; text-decoration-thickness: 1px; text-underline-offset: 5px; }
.lab-directory { border-top: 1px solid var(--line); }
.lab-filter { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 25px; }
.lab-filter[hidden] { display: none; }
.lab-filter button { border: 1px solid var(--line); padding: 10px 20px; min-height: 42px; border-radius: 30px; color: var(--muted); background: transparent; font-size: 12px; cursor: pointer; transition: background .2s, color .2s; }
.lab-filter button[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: #fff; }
.lab-filter button:hover { border-color: var(--ink); }
.lab-app-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.lab-app { display: flex; align-items: center; gap: 15px; padding: 24px 16px 24px 0; border-bottom: 1px solid var(--line); text-decoration: none; min-width: 0; transition: background .2s; }
.lab-app[hidden] { display: none; }
.lab-app:hover { background: #eeefe4; }
.lab-app-icon { display: grid; place-items: center; width: 45px; height: 45px; flex: 0 0 auto; background: #e9ebdf; border-radius: 11px; overflow: hidden; font-size: 23px; }
.lab-app-icon img { display: block; width: 100%; height: 100%; object-fit: cover; }
.lab-app-copy { min-width: 0; }
.lab-app-copy strong { display: block; font-size: 13px; line-height: 1.6; }
.lab-app-copy span { display: block; margin-top: 4px; font-size: 11px; line-height: 1.7; color: var(--muted); }
.lab-app > .lab-arrow { width: 15px; margin-left: auto; margin-right: 10px; }
.lab-count { font-size: 11px; color: var(--muted); text-align: right; padding-top: 17px; }
.lab-guides { background: #eceee3; }
.lab-guide-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.lab-guide { display: flex; flex-direction: column; padding-top: 18px; border-top: 1px solid #bbc0ad; text-decoration: none; }
.lab-guide > span { font: 11px "Courier New", monospace; color: #696f5c; }
.lab-guide h3 { font-size: 17px; line-height: 1.8; letter-spacing: -.03em; margin-top: 18px; }
.lab-guide p { font-size: 12px; line-height: 1.9; color: var(--muted); margin-top: 9px; }
.lab-guide .lab-arrow { align-self: flex-end; margin-top: 19px; transition: transform .2s; }
.lab-guide:hover .lab-arrow { transform: translateX(5px); }
.lab-about { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; padding-block: 84px; }
.lab-about h2 { font-size: 35px; line-height: 1.65; letter-spacing: -.06em; }
.lab-about p { font-size: 13px; line-height: 2.15; color: var(--muted); }
.lab-about-links { display: flex; gap: 24px; flex-wrap: wrap; margin-top: 23px; }
.lab-about-links a { font-size: 12px; text-underline-offset: 5px; }
@media (max-width: 1100px) {
  .lab-hero { gap: 30px; padding-block: 65px; }
  .lab-hero h1 { font-size: 5.4vw; }
  .lab-mini { height: 175px; }
  .lab-hero-actions { gap: 17px; }
  .lab-button { padding-inline: 18px; gap: 18px; }
  .lab-feature-visual { height: 260px; }
  .lab-app-grid { grid-template-columns: repeat(2, 1fr); }
  .lab-guide-grid { gap: 22px; }
}
@media (max-width: 760px) {
  .lab-hero { grid-template-columns: 1fr; gap: 30px; padding-block: 44px 30px; }
  .lab-hero h1 { font-size: clamp(39px, 9.5vw, 64px); line-height: 1.4; }
  .lab-hero-copy > p { margin-top: 20px; font-size: 13px; line-height: 2; }
  .lab-hero-actions { margin-top: 23px; gap: 23px; }
  .lab-button { min-height: 49px; padding: 13px 17px; font-size: 12px; gap: 26px; }
  .lab-text-link { font-size: 12px; gap: 5px; }
  .lab-hero-art { margin: 10px 16px 0; padding-block: 6px; }
  .lab-mini { height: clamp(133px, 35vw, 210px); border-radius: 10px; }
  .lab-hero-grid { gap: 9px; transform: rotate(-4deg); }
  .lab-mini > span { left: 12px; top: 12px; font-size: 10px; }
  .lab-star { width: 60px; height: 60px; top: -19px; right: -21px; }
  .lab-hero-note { font-size: 8px; margin-top: 24px; letter-spacing: .02em; }
  .lab-index-line { padding-block: 17px; font-size: 11px; }
  .lab-index-line > span:last-child { display: none; }
  .lab-section { padding-block: 45px; }
  .lab-section-heading { gap: 12px; margin-bottom: 23px; }
  .lab-section-heading h2 { font-size: 25px; }
  .lab-section-heading > span { font-size: 9px; letter-spacing: .03em; }
  .lab-guides .lab-section-heading { display: block; }
  .lab-guides .lab-section-heading > span { display: none; }
  .lab-feature-grid { grid-template-columns: 1fr; gap: 32px; }
  .lab-feature-visual { height: auto; aspect-ratio: 1.7; }
  .lab-feature-word { font-size: 22px; left: 19px; top: 17px; }
  .lab-feature-category { font-size: 9px; right: 17px; top: 18px; }
  .lab-feature-visual::after { width: 32px; height: 32px; right: 15px; bottom: 15px; font-size: 19px; }
  .lab-feature-info { padding-top: 17px; }
  .lab-feature-info h3 { font-size: 18px; }
  .lab-feature-info p { font-size: 12px; }
  .lab-filter { gap: 6px; margin-bottom: 20px; }
  .lab-filter button { padding: 9px 13px; font-size: 11px; }
  .lab-app-grid { grid-template-columns: 1fr; }
  .lab-app { padding: 19px 0; }
  .lab-app-copy strong { font-size: 13px; }
  .lab-app-copy span { font-size: 11px; }
  .lab-guide-grid { grid-template-columns: repeat(2, 1fr); gap: 27px 20px; }
  .lab-guide h3 { font-size: 15px; margin-top: 12px; }
  .lab-guide p { font-size: 11px; }
  .lab-about { grid-template-columns: 1fr; gap: 24px; padding-block: 48px; }
  .lab-about h2 { font-size: 28px; }
  .lab-about p { font-size: 12px; }
}