/*
 * Shared presentation for the landing page and bilingual catalog.
 * The palette and spacing are intentionally framework-free so GitHub Pages can
 * publish the files directly without a build step.
 */
:root {
  --color-ink: #172238;
  --color-muted: #5b6679;
  --color-surface: #ffffff;
  --color-canvas: #f3f7fb;
  --color-line: #d9e2ec;
  --color-line-strong: #b8c7d6;
  --color-accent: #086c67;
  --color-accent-dark: #075651;
  --color-accent-soft: #e4f4f2;
  --color-highlight: #e65d3f;
  --color-focus: #0a66c2;
  --shadow-card: 0 18px 45px rgba(28, 52, 78, 0.09);
  --radius-small: 0.55rem;
  --radius-medium: 0.9rem;
  --radius-large: 1.25rem;
  --site-width: 68rem;
  color: var(--color-ink);
  background: var(--color-canvas);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Hiragino Sans", "Yu Gothic UI", Meiryo, sans-serif;
  font-size: 100%;
  line-height: 1.65;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 20rem;
  background: var(--color-canvas);
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--color-ink);
  background:
    linear-gradient(rgba(16, 75, 103, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 75, 103, 0.035) 1px, transparent 1px),
    var(--color-canvas);
  background-size: 2rem 2rem;
}

a {
  color: var(--color-accent-dark);
  text-underline-offset: 0.18em;
}

a:hover {
  text-decoration-thickness: 0.12em;
}

a:focus-visible,
button:focus-visible,
textarea:focus-visible,
input:focus-visible {
  outline: 0.2rem solid var(--color-focus);
  outline-offset: 0.18rem;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius-small);
  color: #ffffff;
  background: var(--color-ink);
  transform: translateY(-180%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-shell {
  width: min(calc(100% - 2rem), var(--site-width));
  margin-inline: auto;
}

.site-header {
  border-bottom: 1px solid var(--color-line);
  background: rgba(255, 255, 255, 0.92);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4.75rem;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--color-ink);
  font-weight: 750;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.portfolio-home-link {
  color: var(--color-accent-dark);
  font-size: 0.85rem;
  font-weight: 700;
  white-space: nowrap;
}

.brand-mark {
  display: inline-grid;
  width: 2.35rem;
  height: 2.35rem;
  place-items: center;
  border-radius: 0.7rem 0.7rem 0.2rem 0.7rem;
  color: #ffffff;
  background: var(--color-accent);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.05em;
}

.language-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem;
  border: 1px solid var(--color-line);
  border-radius: 999px;
  background: var(--color-canvas);
  font-size: 0.875rem;
  font-weight: 650;
}

.language-nav a {
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  color: var(--color-muted);
  text-decoration: none;
}

.language-nav a[aria-current="page"] {
  color: #ffffff;
  background: var(--color-ink);
}

.page-main {
  padding-block: clamp(2.8rem, 7vw, 5.5rem);
}

.catalog-intro {
  max-width: 46rem;
  margin-bottom: clamp(3rem, 7vw, 5rem);
}

.eyebrow {
  margin: 0 0 0.55rem;
  color: var(--color-accent-dark);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: break-word;
}

h1 {
  max-width: 16ch;
  margin: 0;
  font-size: clamp(2.35rem, 7vw, 4.8rem);
  line-height: 1.03;
  letter-spacing: -0.055em;
}

.catalog-intro > p:last-child {
  max-width: 43rem;
  margin: 1.35rem 0 0;
  color: var(--color-muted);
  font-size: clamp(1rem, 2vw, 1.12rem);
}

.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  letter-spacing: -0.03em;
}

.count-badge {
  padding: 0.25rem 0.65rem;
  border: 1px solid var(--color-line-strong);
  border-radius: 999px;
  color: var(--color-muted);
  background: var(--color-surface);
  font-size: 0.78rem;
  font-weight: 700;
}

.tool-card {
  position: relative;
  display: grid;
  grid-template-columns: 5rem minmax(0, 1fr);
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-large);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

.tool-card::before {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0.32rem;
  background: var(--color-highlight);
  content: "";
}

.tool-number {
  display: grid;
  place-items: start center;
  padding-top: 2.1rem;
  border-right: 1px solid var(--color-line);
  color: var(--color-line-strong);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 1.1rem;
  font-weight: 800;
}

.tool-content {
  padding: clamp(1.5rem, 5vw, 2.6rem);
}

.tool-status {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin: 0 0 0.65rem;
  color: var(--color-accent-dark);
  font-size: 0.82rem;
  font-weight: 750;
}

.status-dot {
  width: 0.52rem;
  height: 0.52rem;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 0.22rem var(--color-accent-soft);
}

.tool-content h3 {
  margin: 0;
  font-size: clamp(1.55rem, 4vw, 2.15rem);
  line-height: 1.2;
  letter-spacing: -0.035em;
}

.tool-content > p:not(.tool-status) {
  max-width: 46rem;
  margin: 0.9rem 0 0;
  color: var(--color-muted);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
}

.tag-list li {
  padding: 0.28rem 0.62rem;
  border-radius: 999px;
  color: var(--color-accent-dark);
  background: var(--color-accent-soft);
  font-size: 0.8rem;
  font-weight: 700;
}

.tool-actions,
.language-choice {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.7rem;
}

.tool-actions {
  margin-top: 1.5rem;
}

.button {
  display: inline-flex;
  min-height: 2.8rem;
  align-items: center;
  justify-content: center;
  padding: 0.62rem 1rem;
  border: 1px solid transparent;
  border-radius: var(--radius-small);
  font-size: 0.9rem;
  font-weight: 750;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
}

.button-primary {
  color: #ffffff;
  background: var(--color-accent);
}

.button-primary:hover {
  color: #ffffff;
  background: var(--color-accent-dark);
}

.button-secondary {
  border-color: var(--color-line-strong);
  color: var(--color-ink);
  background: var(--color-surface);
}

.is-disabled {
  color: var(--color-muted);
  background: var(--color-canvas);
  cursor: not-allowed;
  opacity: 0.78;
}

.text-pending {
  color: var(--color-muted);
  font-size: 0.86rem;
}

.notice-panel {
  margin-top: 2rem;
  padding: 1.25rem 1.4rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-medium);
  background: rgba(255, 255, 255, 0.72);
}

.notice-panel h2 {
  margin: 0;
  font-size: 1rem;
}

.notice-panel p {
  margin: 0.4rem 0 0;
  color: var(--color-muted);
  font-size: 0.9rem;
}

.site-footer {
  padding-block: 1.7rem;
  border-top: 1px solid var(--color-line);
  color: var(--color-muted);
  background: rgba(255, 255, 255, 0.72);
  font-size: 0.82rem;
}

.footer-content,
.support-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 1rem;
}

.footer-content {
  justify-content: space-between;
}

.support-links {
  font-size: 10pt;
}

.landing-support {
  width: min(100%, 42rem);
  padding-top: 1rem;
  color: var(--color-muted);
}

.landing-page {
  display: grid;
  grid-template-rows: 1fr auto;
  min-height: 100vh;
  place-items: center;
  padding: 1rem;
}

.landing-shell {
  width: min(100%, 42rem);
  padding: clamp(1.8rem, 7vw, 4rem);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-large);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow-card);
}

.landing-shell > .brand-mark {
  width: 3rem;
  height: 3rem;
  margin-bottom: 1.8rem;
}

.landing-shell h1 {
  font-size: clamp(2.55rem, 10vw, 5.2rem);
}

.landing-japanese {
  margin: 0.55rem 0 0;
  color: var(--color-accent-dark);
  font-size: clamp(1.25rem, 5vw, 2rem);
  font-weight: 700;
}

.landing-summary {
  margin: 1.45rem 0 0;
  color: var(--color-muted);
}

.language-choice {
  margin-top: 1.4rem;
}

.language-choice .button {
  min-width: 8.5rem;
}

.landing-note {
  margin: 2.4rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--color-line);
  color: var(--color-muted);
  font-size: 0.8rem;
}

@media (max-width: 42rem) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding-block: 0.9rem;
  }

  .tool-card {
    grid-template-columns: 1fr;
  }

  .tool-number {
    display: block;
    padding: 0.8rem 1.3rem 0.65rem;
    border-right: 0;
    border-bottom: 1px solid var(--color-line);
  }

  .tool-actions .button,
  .tool-actions .is-disabled {
    width: 100%;
  }
}

@media (max-width: 28rem) {
  .language-nav {
    width: 100%;
    justify-content: space-between;
  }

  .language-choice {
    align-items: stretch;
    flex-direction: column;
  }

  .language-choice .button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}