@import url("tokens.css");
@import url("rings.css");

:root { color-scheme: light; }
[data-theme="dark"] { color-scheme: dark; }

* { box-sizing: border-box; }

body {
  min-height: 100vh;
  margin: 0;
  padding: 0;
  color: var(--sky-05);
  background: var(--sky-95);
}

.maturity-marker {
  position: fixed;
  right: var(--space-3);
  bottom: var(--space-3);
  z-index: 100;
  display: flex;
  align-items: baseline;
  gap: var(--inline-tight);
  padding: var(--inset-tight) var(--inset-base);
  color: #181F24;
  background: var(--ring-confidential);
  border: 2px solid #181F24;
  box-shadow: 0 0 0 2px var(--sky-95);
  pointer-events: none;
  -webkit-print-color-adjust: exact;
  print-color-adjust: exact;
}

.maturity-marker strong {
  font-size: var(--text-18);
  line-height: 1;
  letter-spacing: 0.04em;
}

.maturity-marker span {
  font-size: var(--text-12);
  line-height: 1;
}

h1, h2, h3, h4, h5, h6 { color: var(--water-20); }
a { color: var(--water-35); text-underline-offset: 0.16em; }
th { color: var(--sky-05); background: var(--sky-95); border: 1px solid var(--water-50); }
td { border: 1px solid color-mix(in srgb, var(--water-50) 25%, transparent); }
code { color: var(--mint-20); background: var(--sky-95); }
blockquote { color: var(--water-20); background: var(--sky-95); }

a:focus-visible,
button:focus-visible {
  outline: var(--focus-ring-width) solid var(--water-35);
  outline-offset: var(--focus-ring-offset);
}

.site-page {
  width: 100%;
  max-width: calc(var(--ui-max-width) + 2 * var(--space-4));
  min-height: 100vh;
  margin-inline: auto;
  padding-inline: var(--space-4);
}

.site-header {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: var(--stack-base) var(--inline-relaxed);
  min-height: 88px;
  padding-block: var(--inset-base);
  border-bottom: 1px solid color-mix(in srgb, var(--water-50) 35%, transparent);
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--inline-base);
  width: fit-content;
  min-height: var(--touch-target-min);
  color: var(--water-20);
  text-decoration: none;
}

.brand-mark {
  display: block;
  width: 60px;
  height: 60px;
  background: currentColor;
  mask: url("marks/watermint-stacked-lockup-mask.svg") center / contain no-repeat;
}

.product-name {
  font-size: var(--text-18);
  font-weight: var(--weight-medium);
  letter-spacing: -0.01em;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--inline-hairline);
}

.site-nav-link {
  display: inline-flex;
  align-items: center;
  min-height: var(--touch-target-min);
  padding: var(--inset-tight) var(--inset-base);
  color: var(--water-20);
  font-weight: var(--weight-medium);
  text-decoration: none;
  border-bottom: 2px solid transparent;
}

.site-nav-link:hover { background: color-mix(in srgb, var(--water-50) 10%, transparent); }
.site-nav-link[aria-current="page"] { border-bottom-color: var(--water-50); }

.language-switch {
  margin-bottom: 0;
  grid-column: 1 / -1;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: var(--inline-hairline);
  color: var(--sky-35);
}

.language-switch button {
  min-width: var(--touch-target-min);
  min-height: var(--touch-target-min);
  padding: var(--inset-tight);
  color: var(--sky-35);
  font: inherit;
  font-weight: var(--weight-medium);
  background: transparent;
  border: 0;
  cursor: pointer;
}

.language-switch button[aria-pressed="true"] { color: var(--water-20); text-decoration: underline; text-underline-offset: var(--space-0); }

.site-main { padding-block: var(--space-7); }

.hero {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  align-items: center;
  gap: var(--stack-section) var(--space-4);
  min-height: min(660px, 72vh);
  padding-block: var(--space-7);
}

.hero-copy { grid-column: 1 / -1; max-width: var(--prose-max-width); }
.eyebrow { margin-bottom: var(--stack-close); color: var(--mint-35); font-weight: var(--weight-medium); }

.hero h1 {
  max-width: 12ch;
  margin: 0 0 var(--stack-relaxed);
  font-size: clamp(48px, 9vw, 88px);
  line-height: 1.02;
  letter-spacing: -0.035em;
}

.hero-lead { max-width: 58ch; font-size: var(--text-18); line-height: var(--leading-loose); }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--inline-base); margin-top: var(--stack-loose); }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--touch-target-min);
  padding: var(--inset-base) var(--inset-loose);
  font-weight: var(--weight-medium);
  text-decoration: none;
  border: 1px solid var(--water-35);
}

.button.primary { color: var(--sky-95); background: var(--water-20); border-color: var(--water-20); }
.button.secondary { color: var(--water-20); background: var(--sky-95); }

.hero-showcase {
  grid-column: 1 / -1;
  width: 100%;
  max-width: 480px;
  margin: 0;
}

.content-section {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: var(--stack-loose) var(--space-4);
  padding-block: var(--space-8);
  border-top: 1px solid color-mix(in srgb, var(--water-50) 35%, transparent);
}

.section-heading { grid-column: 1 / -1; max-width: var(--prose-max-width); }
.section-heading h2 { margin: 0 0 var(--stack-base); font-size: clamp(28px, 5vw, 48px); letter-spacing: -0.02em; }
.section-heading p { font-size: var(--text-18); }

.principle-grid,
.guide-grid { grid-column: 1 / -1; display: grid; gap: var(--space-4); }

.principle-grid { grid-template-columns: 1fr; }
.principle { padding: var(--inset-loose) 0; border-top: 2px solid var(--mint-50); }
.principle h3 { margin-top: 0; }

.requirements {
  grid-column: 1 / -1;
  min-width: 0;
}
.requirements-scroll { overflow-x: auto; }
.requirements-table { width: 100%; border-collapse: collapse; text-align: start; }
.requirements-table caption { text-align: start; font-weight: var(--weight-medium); padding-bottom: var(--inset-base); }
.requirements-table th, .requirements-table td { padding: var(--inset-base) var(--inset-tight); border-bottom: 1px solid var(--water-50); vertical-align: top; }
.requirements-table th { font-weight: var(--weight-medium); }
.requirements-table td { color: var(--mint-35); overflow-wrap: anywhere; }
.requirements-note { margin-top: var(--stack-relaxed); }

.license-grid {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.license-card {
  min-height: 224px;
  padding: var(--inset-loose);
  border: 1px solid var(--water-50);
  background: color-mix(in srgb, var(--mint-80) 18%, var(--sky-95));
}

.license-card:nth-child(2) { background: color-mix(in srgb, var(--kaki-80) 20%, var(--sky-95)); }
.license-card:nth-child(3) { background: color-mix(in srgb, var(--water-80) 26%, var(--sky-95)); }
.license-card:nth-child(4) { background: color-mix(in srgb, var(--sumire-80) 18%, var(--sky-95)); }

.license-audience {
  margin-top: 0;
  color: var(--mint-35);
  font-size: var(--text-14);
  font-weight: var(--weight-medium);
}

.license-card h3 {
  margin: var(--stack-tight) 0 var(--stack-base);
  color: var(--water-20);
  font-size: var(--text-24);
  font-weight: var(--weight-medium);
}

.license-summary-text { font-size: var(--text-18); line-height: var(--leading-loose); }
.license-card ul { margin: var(--stack-base) 0 0; padding-left: 1.25em; }
.license-card li + li { margin-top: var(--stack-tight); }
.license-note { color: var(--sky-35); font-size: var(--text-14) !important; }
.license-link { display: inline-flex; align-items: center; min-height: var(--touch-target-min); }
.license-actions { display: flex; flex-wrap: wrap; gap: var(--inline-base); margin-top: var(--stack-base); }

.young-reader-guide {
  max-width: 900px;
  margin-block: var(--space-7);
  padding: var(--space-6);
  border: 2px solid var(--mint-50);
}

.young-reader-guide h2 { margin: 0 0 var(--stack-base); font-size: clamp(28px, 5vw, 48px); }
.young-reader-intro { max-width: var(--prose-max-width); font-size: var(--text-18); line-height: var(--leading-loose); }
.young-reader-guide ol { display: grid; gap: var(--space-4); margin: var(--space-5) 0; padding-left: 1.5em; }
.young-reader-guide li { padding-left: var(--inset-tight); }
.young-reader-guide li::marker { color: var(--mint-35); font-size: var(--text-24); font-weight: var(--weight-medium); }
.young-reader-guide h3 { margin: 0 0 var(--stack-tight); font-size: var(--text-18); }
.young-reader-guide li p { margin: 0; line-height: var(--leading-loose); }

.guide-grid { grid-template-columns: 1fr; }
.guide-grid a { display: flex; flex-direction: column; gap: var(--stack-tight); min-height: 144px; padding: var(--inset-loose); color: var(--water-20); border: 1px solid var(--water-50); text-decoration: none; }
.guide-grid a:hover { background: color-mix(in srgb, var(--water-80) 20%, transparent); }
.guide-grid span { color: var(--sky-05); }

.document-intro { max-width: var(--prose-max-width); padding-block: var(--space-7); }
.document-intro h1 { margin: 0 0 var(--stack-relaxed); }
.document-intro .button { margin-top: var(--stack-base); }
.license-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--inline-hairline);
  margin-bottom: var(--space-5);
  padding-bottom: var(--inset-base);
  border-bottom: 1px solid var(--water-50);
}
.license-nav a {
  display: inline-flex;
  align-items: center;
  min-height: var(--touch-target-min);
  padding: var(--inset-tight) var(--inset-base);
  color: var(--water-20);
  font-weight: var(--weight-medium);
  text-decoration: none;
  border-bottom: 2px solid transparent;
}
.license-nav a:hover { background: color-mix(in srgb, var(--water-50) 10%, transparent); }
.license-nav a[aria-current="page"] { border-bottom-color: var(--mint-50); }
.license { margin-inline: 0; padding-block: var(--space-7); border-top: 1px solid var(--water-50); }
.license h2 { margin-top: 0; }
.license h3 { margin-top: var(--space-6); }
.license hr { margin-block: var(--space-6); border: 0; border-top: 1px solid var(--water-50); }

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--stack-base) var(--inline-relaxed);
  padding-block: var(--space-5);
  border-top: 1px solid var(--water-50);
}

.site-footer p { margin: 0; }
.wiki-page.site-page { padding-block: 0; }
.wiki-page.site-page .wiki-header { display: block; padding-top: var(--space-7); border-bottom: 0; }

@media (min-width: 1024px) {
  .site-page { padding-inline: var(--space-6); }
  .site-header { grid-template-columns: auto 1fr auto; }
  .language-switch { grid-column: auto; }
  .hero { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  .hero-copy { grid-column: span 7; }
  .hero-showcase { grid-column: 8 / span 5; }
  .content-section { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  .section-heading { grid-column: span 4; }
  .principle-grid { grid-column: 6 / -1; grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .requirements { grid-column: 6 / -1; }
  .license-grid { grid-column: 6 / -1; }
  .guide-grid { grid-column: 6 / -1; grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 1440px) {
  .hero { padding-block: var(--space-9); }
}

@media (max-width: 639px) {
  .site-header { grid-template-columns: 1fr; align-items: start; }
  .site-nav, .language-switch { justify-content: flex-start; }
  .language-switch { grid-column: auto; }
  .license-grid { grid-template-columns: 1fr; }
  .site-main { padding-block: var(--space-4); }
  .hero { min-height: auto; padding-block: var(--space-7); }
  .hero h1 { font-size: 40px; }
  [data-language-panel="ja"] .hero h1 { font-size: 36px; white-space: nowrap; }
  .young-reader-guide { padding: var(--space-4); }
  .maturity-marker {
    right: var(--space-2);
    bottom: var(--space-2);
    flex-direction: column;
  }
}

@media print {
  .maturity-marker { box-shadow: none; }
}

@media (prefers-color-scheme: dark) {
  :root { color-scheme: dark; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}

/* Landscape and system entry points share the catalog's real artwork. */
.hero-showcase { max-width: none; }
.hero-placeholder, .hero-screenshot { width: 100%; aspect-ratio: 16 / 9; }
.hero-screenshot { display: block; height: auto; object-fit: contain; }
.hero-placeholder {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: var(--stack-base);
  padding: var(--space-5);
  border: 1px solid var(--water-50);
  background: color-mix(in srgb, var(--water-80) 22%, var(--sky-95));
  color: var(--sky-35);
  text-align: center;
}
.hero-placeholder strong { color: var(--water-20); font-size: clamp(20px, 2.5vw, 32px); font-weight: var(--weight-medium); }
.hero-placeholder .eyebrow { font-size: var(--text-12); letter-spacing: .12em; margin: 0; }
.placeholder-corners { position: absolute; inset: 12px; border: 1px dashed var(--water-50); pointer-events: none; }
.system-grid { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-4); }
.system-card { display: flex; flex-direction: column; padding: var(--space-4); border-top: 2px solid var(--water-50); border-bottom: 1px solid var(--water-50); text-decoration: none; color: var(--sky-05); }
.system-card:hover { background: color-mix(in srgb, var(--water-80) 22%, var(--sky-95)); }
.system-card-top { display: flex; align-items: center; gap: var(--space-3); min-height: 80px; }
.system-card-top img { width: 64px; height: 64px; object-fit: contain; image-rendering: pixelated; flex-shrink: 0; }
.system-card h3 { font-size: var(--text-24); line-height: 1.4; margin: 0; }
.system-card p { line-height: var(--leading-loose); }
.system-card-link { color: var(--water-35); margin-top: auto; padding-top: var(--space-3); font-weight: var(--weight-medium); }
.system-card-link span { float: right; }
.system-empty { grid-column: 1 / -1; }
.release-empty { padding-block: var(--space-6); border-top: 1px solid var(--water-50); }
.release-entry { display: grid; grid-template-columns: 1fr 3fr; gap: var(--space-5); padding-block: var(--space-6); border-top: 1px solid var(--water-50); }
.release-entry h2 { font-size: var(--text-32); }
.release-environments { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-4); }
.release-environment { padding: var(--space-4); border: 1px solid var(--water-50); }
.release-environment div { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-2); padding-block: var(--space-2); }
.release-environment dd { margin: 0; overflow-wrap: anywhere; }
@media (min-width: 1024px) {
  .hero-copy { grid-column: span 5; }
  .hero-showcase { grid-column: 6 / -1; }
  .system-section .section-heading { grid-column: 1 / -1; max-width: none; }
  [data-language-panel="ja"] .hero h1 { font-size: clamp(48px, 4.2vw, 64px); }
}
@media (max-width: 1023px) { .system-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 639px) {
  .system-grid, .release-entry, .release-environments { grid-template-columns: 1fr; }
  [data-language-panel="ja"] .hero h1 { white-space: normal; }
  .hero-placeholder { padding: var(--space-4); }
}

.system-section h2 { max-width: none; }
.system-section .section-heading p { max-width: var(--prose-max-width); }
[data-language-panel="ja"] .hero h1 { max-width: none; }
.hero-copy, .hero-showcase, .section-heading, .system-card { min-width: 0; }

.translation-notice { padding: var(--space-4); border-left: 3px solid var(--water-50); color: var(--water-20); background: color-mix(in srgb, var(--water-80) 20%, var(--sky-95)); }
.license-text-links { display: flex; flex-wrap: wrap; gap: var(--space-4); margin-bottom: var(--space-4); }
.license-text-links a { min-height: var(--touch-target-min); align-content: center; }
.license-text-links a[hidden], .license[hidden] { display: none; }
.license[id] { scroll-margin-top: var(--space-4); }
.license { overflow-wrap: anywhere; }

/* Screenshots keep their original framing; only the track moves. */
.hero-viewport { overflow: hidden; width: 100%; }
.hero-track { display: flex; height: 100%; transition: transform .5s ease; }
.hero-slide { flex: 0 0 100%; min-width: 0; height: 100%; }
.hero-slide .hero-screenshot { width: 100%; height: 100%; aspect-ratio: auto; object-fit: contain; }
.hero-controls { display: flex; align-items: center; justify-content: center; gap: var(--inline-base); padding: var(--space-2); }
.hero-controls[hidden] { display: none; }
.hero-controls button { min-width: var(--touch-target-min); min-height: var(--touch-target-min); cursor: pointer; font: inherit; }
.hero-controls [data-hero-position] { font-variant-numeric: tabular-nums; white-space: nowrap; }
@media (prefers-reduced-motion: reduce) {
  .hero-track { transition: none; }
}

.product-icon { display: block; width: 48px; height: 48px; object-fit: contain; image-rendering: pixelated; }

.maintenance-policy .section-heading { grid-column: 1 / -1; }
.maintenance-policy li + li { margin-top: var(--stack-base); }


/* Installation: two routes, with numbered steps that remain readable on phones. */
.install-main { max-width: 1040px; margin-inline: auto; }
.install-main > section { padding-block: var(--space-6); border-top: 1px solid var(--water-50); }
.install-main p { max-width: var(--prose-max-width); }
.install-main h2 { margin-top: 0; }
.install-main section { scroll-margin-top: var(--space-5); }
.install-versions, .install-methods { display: grid; gap: var(--space-4); }
.install-versions { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.install-versions > div, .install-methods a { border: 1px solid var(--water-50); padding: var(--inset-base); }
.install-versions dt { font-size: var(--text-14); }
.install-versions dd { margin: var(--space-2) 0 0; font-weight: 700; overflow-wrap: anywhere; }
.install-methods { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.install-methods a { display: flex; flex-direction: column; gap: var(--space-3); text-decoration: none; }
.install-methods a:hover { background: color-mix(in srgb, var(--water-80) 20%, transparent); }
.install-methods strong { font-size: 1.25rem; }
.install-methods span { color: var(--sky-05); }
.install-steps { padding-left: var(--space-6); }
.install-steps > li { padding: var(--space-3) 0 var(--space-4) var(--space-3); }
.install-steps > li::marker { color: var(--water-20); font-size: 1.5rem; font-weight: 700; }
.install-steps h3 { margin-block: 0 var(--space-2); }
.install-steps p { margin: 0; }
.install-links { display: flex; flex-wrap: wrap; gap: var(--space-3) var(--space-5); padding-left: var(--space-5); }
.install-folders dd { margin: var(--space-2) 0 var(--space-4); }
.install-folders code { overflow-wrap: anywhere; }
.install-help details { padding-block: var(--space-3); }
.install-help summary { cursor: pointer; font-weight: 600; }
@media (max-width: 639px) {
  .install-versions, .install-methods { grid-template-columns: 1fr; }
}