:root {
  --bg: #f4f3ee;
  --panel: #fffefa;
  --ink: #101a17;
  --sub: #59645f;
  --line: #d9d8d1;
  --line-strong: #c7c7bf;
  --accent: #137861;
  --accent-deep: #0e604d;
  --accent-soft: #e8f1ed;
  --sand: #fbf3df;
  --stone: #e8e8e1;
  --success: #147a63;
  --radius: 20px;
  --shadow: 0 1px 2px rgba(16,26,23,.045), 0 14px 36px rgba(16,26,23,.06);
  --shadow-raised: 0 1px 0 rgba(255,255,255,.95) inset, 0 1px 2px rgba(16,26,23,.04), 0 18px 44px rgba(16,26,23,.075);
  --container: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--world-page-background, var(--bg)); color: var(--ink); font-family: var(--world-font-sans); }
body { margin: 0; background: var(--world-page-background, var(--bg)); }
a { color: inherit; text-decoration: none; }
button { border: 0; font: inherit; cursor: pointer; color: inherit; }
p { margin: 0; }
h1, h2, h3 { margin: 0; line-height: 1.18; letter-spacing: -.05em; }
h2 { font-size: clamp(27px, 3.1vw, 38px); }
h3 { font-size: 21px; }
.container { max-width: var(--container); margin: 0 auto; padding-left: 25px; padding-right: 25px; }
.eyebrow { margin: 0 0 14px; color: var(--accent-deep); font-size: 11px; font-weight: 800; letter-spacing: .2em; }
.lead { max-width: 590px; color: var(--sub); font-size: 17px; line-height: 1.95; }
.hidden { display: none !important; }

.topbar {
  height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 30px;
  padding: 0 max(calc((100vw - var(--container)) / 2), 25px);
  position: sticky; top: 0; z-index: 20;
  background: rgba(255,254,250,.98); border-bottom: 1px solid var(--line);
  box-shadow: 0 1px 0 rgba(255,255,255,.9) inset, 0 2px 12px rgba(16,26,23,.035);
}
.brand { display: inline-flex; align-items: center; gap: 15px; flex: none; }
.brand-mark {
  position: relative; display: block; width: 39px; height: 45px; border: 2px solid var(--accent);
  border-radius: 9px; background: var(--panel);
  box-shadow: inset 8px 0 0 #eef3f1, inset 17px 0 0 var(--panel), inset 22px 0 0 #eef3f1, inset 31px 0 0 var(--panel), 0 1px 2px rgba(16,26,23,.05);
}
.brand-mark::after {
  content: ""; position: absolute; right: -5px; bottom: -5px; width: 15px; height: 15px;
  border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 3px var(--panel);
}
.brand-copy strong { display: block; font-size: 22px; letter-spacing: -.055em; line-height: 1; }
.brand-copy small { display: block; color: var(--sub); margin-top: 4px; font-size: 11px; letter-spacing: .05em; }
.site-nav { display: flex; align-items: center; gap: 25px; font-size: 14px; color: var(--sub); }
.site-nav > a:not(.button):hover { color: var(--accent); }
.nav-toggle { display: none; padding: 10px 13px; border: 1px solid var(--line); border-radius: 10px; background: var(--panel); }
.badge {
  display: inline-flex; padding: 9px 14px; border: 1px solid #ead5aa; border-radius: 999px;
  background: var(--sand); color: #815718; font-size: 12px; font-weight: 700;
}
.button {
  min-height: 48px; padding: 0 20px; display: inline-flex; align-items: center; justify-content: center;
  border-radius: 12px; border: 1px solid transparent; font-size: 14px; font-weight: 700;
  transition: transform .15s ease, border-color .15s ease, background-color .15s ease, box-shadow .15s ease;
}
.button:hover { transform: translateY(-1px); }
.button.small { min-height: 43px; padding: 0 17px; }
.button.primary {
  color: white; background: var(--accent);
  box-shadow: 0 1px 0 rgba(255,255,255,.18) inset, 0 7px 17px rgba(19,120,97,.2);
}
.button.primary:hover { background: var(--accent-deep); }
.button.secondary { color: var(--accent-deep); border-color: #c1d7d0; background: var(--accent-soft); }
.button.ghost { border-color: var(--line); background: var(--panel); }

.hero {
  padding-top: clamp(54px, 9vw, 95px); padding-bottom: clamp(50px, 8vw, 84px);
  display: grid; grid-template-columns: minmax(440px, 1.22fr) minmax(285px, .78fr);
  align-items: center; gap: clamp(36px, 6vw, 76px);
}
.assemble-title {
  --repair-grid-gap: 3px;
  --repair-edge: rgba(19, 120, 97, .42);
  --repair-face: rgba(232, 241, 237, .68);
  margin: 0 0 25px;
  font-size: clamp(43px, 5.5vw, 66px);
  line-height: 1.1;
  letter-spacing: -.075em;
  font-weight: 760;
  min-height: 2.42em;
}
.assemble-line {
  display: flex;
  width: max-content;
  max-width: 100%;
  gap: 0;
  white-space: nowrap;
}
.assemble-line + .assemble-line { margin-top: .06em; }
.assemble-line.dark {
  align-items: flex-end;
  color: var(--accent);
  font-weight: 790;
}
.assemble-key,
.assemble-line.dark .assemble-tile.is-emphasis {
  font-size: 1.14em;
  letter-spacing: -.082em;
}
.assemble-particle,
.assemble-line.dark .assemble-tile.is-particle {
  margin-bottom: .115em;
}
.assemble-line.accent,
.assemble-line.accent .assemble-glyph { color: var(--accent); }
.assemble-tile {
  position: relative;
  display: inline-flex;
  width: .91em;
  height: 1.08em;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 4px;
  background: transparent;
}
.assemble-glyph {
  display: inline-block;
  transform-origin: center;
}
/* The final all-green heading is the no-script and reduced-motion state. */
.assemble-title.is-repair-story .assemble-line.dark,
.assemble-title.is-repair-story .assemble-line.dark .assemble-glyph { color: var(--ink); }
.assemble-title.is-repair-story .assemble-line.dark { gap: var(--repair-grid-gap); }
.assemble-title.is-repair-story .assemble-line.dark .assemble-tile {
  opacity: 0;
  transform: translateY(.12em);
  transition:
    opacity 230ms ease-out var(--intro-delay),
    transform 300ms cubic-bezier(.2, .82, .2, 1) var(--intro-delay),
    border-color 230ms ease-out,
    background-color 230ms ease-out;
}
.assemble-title.is-repair-story.is-problem-visible .assemble-line.dark .assemble-tile {
  opacity: 1;
  transform: var(--problem-offset, translateY(0));
}
.assemble-title.is-repair-story .assemble-line.accent {
  opacity: 0;
  transform: translateY(.24em);
  transition: opacity 340ms ease-out, transform 430ms cubic-bezier(.2, .82, .2, 1);
}
.assemble-title.is-repair-story.is-tool-visible .assemble-line.accent {
  opacity: 1;
  transform: translateY(0);
}
.assemble-title.is-repair-story.is-repairing .assemble-line.dark .assemble-tile {
  border-color: var(--repair-edge);
  background: var(--repair-face);
}
.assemble-title.is-repair-story .assemble-line.dark .assemble-tile.is-serif .assemble-glyph {
  font-family: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
  font-weight: 700;
}
.assemble-title.is-repair-story .assemble-line.dark .assemble-tile.is-light .assemble-glyph { font-weight: 500; }
.assemble-title.is-repair-story .assemble-line.dark .assemble-tile.is-heavy .assemble-glyph { font-weight: 900; }
.assemble-title.is-repair-story .assemble-line.dark .assemble-tile.is-flipped-x .assemble-glyph { transform: scaleX(-1); }
.assemble-title.is-repair-story .assemble-line.dark .assemble-tile.is-flipped-y .assemble-glyph { transform: scaleY(-1); }
.assemble-title.is-repair-story .assemble-line.dark .assemble-tile.is-turned .assemble-glyph { transform: rotate(90deg); }
.assemble-title.is-repair-story .assemble-line.dark .assemble-glyph {
  transition:
    color 280ms ease-out,
    transform 310ms cubic-bezier(.2, .82, .2, 1),
    font-family 1ms linear,
    font-weight 220ms ease-out;
}
.assemble-title.is-repair-story .assemble-line.dark .assemble-tile.is-fixed {
  transform: translateY(0);
  border-color: rgba(19, 120, 97, .75);
  background: #e7f2ee;
  animation: repair-cell-confirm 300ms ease-out;
}
.assemble-title.is-repair-story .assemble-line.dark .assemble-tile.is-fixed .assemble-glyph {
  color: var(--accent);
  transform: none;
  font-family: var(--world-font-sans);
  font-weight: 790;
}
.assemble-title.is-repair-story.is-complete .assemble-line.dark {
  gap: 0;
  transition: gap 300ms cubic-bezier(.2, .82, .2, 1);
}
.assemble-title.is-repair-story.is-complete .assemble-line.dark .assemble-tile {
  border-color: transparent;
  background: transparent;
  transition: border-color 300ms ease-out, background-color 300ms ease-out;
}
@keyframes repair-cell-confirm {
  0% { border-color: var(--repair-edge); background: var(--repair-face); }
  48% { border-color: rgba(19, 120, 97, .86); background: #dbece6; }
  100% { border-color: rgba(19, 120, 97, .75); background: #e7f2ee; }
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 34px; }
.trust-card {
  padding: clamp(24px, 3vw, 30px); border: 1px solid var(--line); border-radius: 19px;
  background: var(--panel); box-shadow: var(--shadow-raised);
}
.trust-card::before { content: ""; display: block; width: 38px; height: 3px; margin: 0 0 22px; border-radius: 3px; background: var(--accent); }
.trust-card h2 { font-size: 24px; margin-bottom: 16px; }
.trust-card > p:not(.eyebrow) { color: var(--sub); line-height: 1.82; font-size: 14px; }
.trust-data { margin: 24px 0 0; border-top: 1px solid var(--line); }
.trust-data div { display: grid; grid-template-columns: 45px 1fr; gap: 12px; padding: 14px 0; border-bottom: 1px solid var(--line); align-items: center; }
.trust-data dt { color: var(--accent); font-size: 12px; font-weight: 800; }
.trust-data dd { margin: 0; font-size: 14px; font-weight: 650; }

.section { padding-top: clamp(44px, 6vw, 70px); padding-bottom: clamp(44px, 6vw, 70px); }
.section-heading {
  display: flex; align-items: end; justify-content: space-between; gap: 25px; margin-bottom: 31px;
}
.section-heading > p { max-width: 430px; color: var(--sub); font-size: 14px; line-height: 1.85; }
.tool-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 17px; }
.tool-card {
  min-height: 377px; padding: 28px; position: relative; display: flex; flex-direction: column;
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); box-shadow: var(--shadow);
}
.tool-card.featured { border-color: #bed5ce; box-shadow: var(--shadow-raised); }
.tool-card.muted { background: #fbfaf6; }
.tool-badge {
  position: absolute; top: 25px; right: 24px; padding: 6px 10px; border-radius: 999px;
  color: var(--accent); background: var(--accent-soft); font-size: 10px; font-weight: 800; letter-spacing: .12em;
}
.tool-badge.planned { background: #f1f0eb; color: #737971; }
.tool-icon {
  height: 55px; width: 55px; position: relative; margin-bottom: 30px; border: 1px solid #c6d9d2;
  border-radius: 15px; background: var(--accent-soft);
}
.paper-icon::before { content: ""; position: absolute; inset: 13px 16px; border: 2px solid var(--accent); border-radius: 4px; }
.paper-icon::after { content: ""; position: absolute; left: 24px; top: 11px; bottom: 11px; width: 1px; background: #b3d1c9; box-shadow: 7px 0 #b3d1c9; }
.tool-svg-icon {
  display: block;
  width: 56px;
  height: 56px;
  flex: none;
  margin-bottom: 29px;
}
.tool-card h3 { font-size: 28px; margin-bottom: 13px; }
.tool-card p { color: var(--sub); font-size: 14px; line-height: 1.75; margin-bottom: 22px; }
.check-list { padding: 0; margin: 0 0 25px; list-style: none; display: grid; gap: 9px; font-size: 13px; }
.check-list li::before { content: ""; display: inline-block; width: 7px; height: 7px; margin-right: 10px; border-radius: 50%; background: var(--accent); vertical-align: middle; }
.card-link {
  min-height: 48px;
  margin-top: auto;
  padding: 0 18px;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid transparent;
  border-radius: 12px;
  color: #fff;
  background: var(--accent);
  box-shadow: 0 1px 0 rgba(255,255,255,.18) inset, 0 7px 17px rgba(19,120,97,.2);
  font-size: 14px;
  font-weight: 700;
  transition: transform .15s ease, background-color .15s ease, box-shadow .15s ease;
}
.card-link:hover {
  transform: translateY(-1px);
  background: var(--accent-deep);
}
.card-link:focus-visible {
  outline: 3px solid rgba(19,120,97,.22);
  outline-offset: 2px;
}
.card-link span { margin-left: auto; font-size: 17px; line-height: 1; }
.card-note { margin-top: auto; color: #7b817a; font-size: 13px; font-weight: 700; }

.muted-section { background: #efeee8; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.principle-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.principle-card { min-height: 236px; padding: 29px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); }
.principle-card span { display: block; color: var(--accent); font-size: 12px; font-weight: 800; margin-bottom: 42px; }
.principle-card h3 { margin-bottom: 12px; font-size: 21px; }
.principle-card p { color: var(--sub); font-size: 14px; line-height: 1.78; }

.pro-banner {
  display: flex; justify-content: space-between; align-items: center; gap: 35px;
  padding: clamp(29px, 5vw, 45px); border: 1px solid #bed5ce; border-radius: 25px; background: var(--panel); box-shadow: var(--shadow-raised);
}
.pro-banner h2 { margin-bottom: 12px; }
.pro-banner p:not(.eyebrow):not(.price) { color: var(--sub); line-height: 1.75; }
.pro-action { text-align: right; flex: none; }
.price { margin-bottom: 14px; }
.price strong { font-size: 33px; letter-spacing: -.05em; }
.price span { color: var(--sub); }

.panel {
  border: 1px solid var(--line-strong); border-radius: 24px; background: var(--panel); box-shadow: var(--shadow-raised);
}
.product-hero { padding-bottom: clamp(35px, 5vw, 53px); }
.product-studio { padding: clamp(18px, 3vw, 30px); }
.studio-header { display: flex; justify-content: space-between; align-items: end; gap: 25px; margin-bottom: 22px; }
.pills { display: flex; gap: 8px; flex-wrap: wrap; }
.pill { padding: 9px 13px; border-radius: 999px; border: 1px solid #c1d7d0; background: var(--accent-soft); color: var(--accent-deep); font-size: 12px; font-weight: 700; }
.workspace-placeholder {
  min-height: clamp(390px, 58vh, 590px); display: grid; place-items: center; border: 1px solid #c7d2cc; border-radius: 16px;
  background: #cfddd6;
}
.workspace-copy { max-width: 360px; display: grid; justify-items: center; gap: 12px; text-align: center; color: var(--sub); }
.workspace-copy strong { color: var(--ink); font-size: 18px; }
.workspace-copy span { font-size: 14px; line-height: 1.75; margin-bottom: 10px; }
.upload-symbol {
  width: 58px; height: 58px; border-radius: 16px; border: 1px solid #bed5ce; background: var(--panel); position: relative; margin-bottom: 8px;
}
.upload-symbol::before { content: "＋"; position: absolute; inset: 14px 0 0; text-align: center; font-size: 26px; color: var(--accent); }
.inline-toolbar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 14px; }
.toolbar-spacer { flex: 1; }
.split-features { display: grid; grid-template-columns: .8fr 1.2fr; gap: 45px; }
.feature-list { display: grid; gap: 12px; }
.feature-list article { padding: 23px 25px; border: 1px solid var(--line); border-radius: 16px; background: var(--panel); }
.feature-list h3 { margin-bottom: 7px; }
.feature-list p { color: var(--sub); line-height: 1.75; font-size: 14px; }
.compact-banner { padding: clamp(25px, 4vw, 37px); }

.footer { margin-top: 34px; padding: 40px 0; border-top: 1px solid var(--line); background: #efeee8; }
.footer-grid { display: grid; grid-template-columns: auto 1fr auto; gap: 34px; align-items: center; }
.footer-brand .brand-mark { transform: scale(.86); transform-origin: left center; }
.footer-nav { display: flex; justify-content: center; gap: 24px; flex-wrap: wrap; color: var(--sub); font-size: 13px; }
.copyright { color: var(--sub); }

.reveal { opacity: 0; transform: translateY(17px); }
.reveal.is-visible { opacity: 1; transform: translateY(0); transition: opacity .5s ease, transform .58s cubic-bezier(.2,.8,.2,1); }

@media (max-width: 900px) {
  .topbar { padding-inline: 16px; }
  .nav-toggle { display: inline-flex; }
  .site-nav {
    display: none; position: absolute; top: 69px; left: 14px; right: 14px; padding: 15px;
    border: 1px solid var(--line); border-radius: 14px; background: var(--panel); box-shadow: var(--shadow); flex-direction: column; align-items: stretch;
  }
  .site-nav.is-open { display: flex; }
  .detail-nav { display: flex; position: static; padding: 0; box-shadow: none; border: 0; background: transparent; flex-direction: row; }
  .hero { grid-template-columns: 1fr; padding-top: 44px; gap: 30px; }
  .tool-grid, .principle-grid { grid-template-columns: 1fr; }
  .tool-card { min-height: auto; }
  .section-heading, .pro-banner, .studio-header { flex-direction: column; align-items: flex-start; }
  .pro-action { text-align: left; }
  .split-features { grid-template-columns: 1fr; gap: 28px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-nav { justify-content: flex-start; }
}
@media (max-width: 600px) {
  .container { padding-inline: 14px; }
  .topbar { height: 70px; }
  .brand-mark { width: 34px; height: 40px; }
  .brand-copy strong { font-size: 20px; }
  .assemble-title { font-size: clamp(33px, 9.5vw, 42px); letter-spacing: -.07em; }
  .assemble-key,
  .assemble-line.dark .assemble-tile.is-emphasis { font-size: 1.12em; letter-spacing: -.079em; }
  .hero { padding-top: 35px; padding-bottom: 38px; }
  .lead { font-size: 15px; }
  .hero-actions .button { width: 100%; }
  .tool-card, .principle-card { padding: 23px; }
  .workspace-placeholder { min-height: 360px; }
  .inline-toolbar .button { flex: 1; padding-inline: 11px; font-size: 13px; }
}

@media (prefers-reduced-motion: reduce) {
  .assemble-title.is-repair-story .assemble-line.dark,
  .assemble-title.is-repair-story .assemble-line.dark .assemble-glyph { color: var(--accent); }
  .assemble-title.is-repair-story .assemble-line.dark { gap: 0; transition: none; }
  .assemble-title.is-repair-story .assemble-line.dark .assemble-tile,
  .assemble-title.is-repair-story .assemble-line.dark .assemble-tile.is-fixed {
    opacity: 1;
    transform: none;
    border-color: transparent;
    background: transparent;
    animation: none;
    transition: none;
  }
  .assemble-title.is-repair-story .assemble-line.dark .assemble-glyph,
  .assemble-title.is-repair-story .assemble-line.dark .assemble-tile.is-fixed .assemble-glyph,
  .assemble-title.is-repair-story .assemble-line.accent {
    opacity: 1;
    transform: none;
    color: var(--accent);
    font-family: var(--world-font-sans);
    transition: none;
  }
  .reveal { opacity: 1; transform: none; transition: none; }
}