:root { color-scheme: light; --ink: #1a2340; --teal: #007d88; --line: #dce6e8; --soft: #f4f8f8; }
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { background: #fff; scroll-behavior: auto; }
body { margin: 0; color: var(--ink); font-family: system-ui, -apple-system, "Segoe UI", "Meiryo", sans-serif; line-height: 1.8; overflow-wrap: anywhere; }
a { color: var(--teal); text-underline-offset: .24em; }
a:hover { text-decoration-thickness: .13em; }
a:focus-visible { outline: 3px solid #1a2340; outline-offset: 5px; border-radius: 2px; }
button, input, select { font: inherit; max-width: 100%; color: var(--ink); }
textarea { font: inherit; color: var(--ink); width: 100%; max-width: 100%; min-width: 0; resize: vertical; padding: .6rem; border: 1px solid #7d8b99; border-radius: 4px; }
textarea:focus-visible { outline: 3px solid var(--ink); outline-offset: 3px; }
.favorites-tools { border: 1px solid var(--line); border-radius: 6px; padding: 1.25rem; margin-bottom: 1.5rem; }
.favorites-tools details { margin-top: 1rem; padding: .75rem 0; border-top: 1px solid var(--line); }
.favorites-tools summary { cursor: pointer; min-height: 44px; }
.favorites-tools pre { font: .85rem ui-monospace, Consolas, monospace; white-space: pre-wrap; overflow-wrap: anywhere; max-height: 24rem; overflow: auto; padding: .75rem; background: var(--soft); }
.favorites-tools input[type="file"] { width: 100%; margin: .5rem 0 1rem; }
.favorites-tools li { margin: .8rem 0; }
.favorites-tools li button { margin-left: .75rem; }
.action-row { display: flex; flex-wrap: wrap; gap: .5rem; margin: .75rem 0; }
.favorite-button { margin-top: .4rem; }
.favorite-button[aria-pressed="true"] { border-width: 2px; font-weight: 700; }
.snapshot-warning { margin: .4rem 0; }
button:disabled, button[aria-disabled="true"] { cursor: default; color: #5b6370; border-color: #9da5ae; }
button, select { min-height: 44px; }
button { border: 1px solid var(--teal); border-radius: 4px; background: #fff; padding: .5rem .9rem; cursor: pointer; }
button:hover { background: var(--soft); }
input, select { border: 1px solid #7d8b99; border-radius: 4px; padding: .5rem .65rem; background: #fff; min-width: 0; }
input:focus-visible, select:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid var(--ink); outline-offset: 3px; }
label { display: block; font-weight: 650; }
.search-controls { border: 1px solid var(--line); border-radius: 6px; padding: 1.5rem; margin-bottom: 1.5rem; }
#color-query { width: 100%; margin: .4rem 0; }
.filter-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; margin: 1rem 0; }
.filter-field { min-width: 0; }
.filter-field > span { display: block; }
.filter-field select { width: 100%; }
#backdrop-controls { margin: 1rem 0; }
#search-reset { margin-top: 1rem; }
#search-status, #copy-status { margin: 1rem 0 0; }
.copy-tools { padding: 1.25rem; background: var(--soft); border: 1px solid var(--line); border-radius: 6px; margin: 0 0 1.5rem; }
.copy-tools select { margin-top: .4rem; }
.copy-button { margin-top: .4rem; }
.contrast-tools { border: 1px solid var(--line); border-radius: 6px; padding: 1.25rem; margin: 0 0 1.5rem; }
.contrast-tools summary { cursor: pointer; min-height: 44px; font-weight: 650; }
.contrast-tools summary + p { margin-top: 1rem; }
.contrast-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.contrast-fields input { width: 100%; }
.contrast-verdicts { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: .6rem 1rem; }
.contrast-verdicts dd { margin: 0; font-weight: 650; }
.contrast-sample { padding: 1.25rem; border: 1px solid var(--line); max-width: 32rem; overflow-wrap: anywhere; }
#copy-manual { margin-top: 1rem; }
#copy-manual-value { width: 100%; margin: .4rem 0 .7rem; }
.input-color { display: flex; align-items: center; gap: 1rem; margin-top: 1rem; }
.input-color > div { flex: 0 0 84px; border: 1px solid var(--line); }
.input-color-surface { width: 84px; height: 64px; }
.input-color p { margin: 0; font-size: .85rem; }
.card-info .distance-label { font-size: .75rem; margin: .6rem 0 0; }
.same-hex { margin: 1.5rem 0; }
code { font: .95em ui-monospace, "Consolas", monospace; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(2.1rem, 5vw, 3.75rem); line-height: 1.3; letter-spacing: -.025em; margin-bottom: 1.1rem; }
h2 { font-size: 1.45rem; line-height: 1.5; margin-bottom: 1rem; }
h3 { font-size: 1.3rem; line-height: 1.5; }
.site-header { border-bottom: 1px solid var(--line); }
.header-inner { max-width: 1240px; margin: auto; padding: 1.25rem 2rem; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .8rem 2rem; }
.brand { color: var(--ink); text-decoration: none; font-size: 1.25rem; font-weight: 750; letter-spacing: -.025em; }
.brand span { color: var(--teal); margin-left: .2em; }
nav { display: flex; flex-wrap: wrap; gap: .25rem 1rem; }
nav a { min-height: 44px; display: inline-flex; align-items: center; font-size: .9rem; text-decoration: none; }
nav a[aria-current] { color: var(--ink); font-weight: 750; text-decoration: underline; }
main { max-width: 1240px; margin: auto; padding: 2.5rem 2rem 5rem; }
main > section + section { margin-top: 3.5rem; }
.intro { padding: 2rem 0 3.25rem; max-width: 850px; }
.eyebrow { color: var(--teal); font-size: .8rem; font-weight: 750; letter-spacing: .08em; margin-bottom: .8rem; }
.lead { font-size: 1.1rem; }
.catalog-count { font-size: .95rem; font-weight: 650; margin: 1.2rem 0 1.5rem; }
.primary-link { min-height: 48px; display: inline-flex; align-items: center; gap: 2rem; color: white; background: var(--teal); padding: .75rem 1.3rem; border-radius: 4px; text-decoration: none; font-weight: 650; }
.category-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; }
.category-card { border: 1px solid var(--line); padding: 1.5rem; border-radius: 6px; }
.category-card p:last-child { margin-bottom: 0; font-size: .9rem; }
.category-card h3 a { display: flex; justify-content: space-between; gap: .5rem; color: var(--ink); }
.scope-note { margin-top: 3rem; padding: 1.75rem 2rem; border-left: 4px solid var(--teal); background: var(--soft); }
.scope-note p:last-child { margin-bottom: 0; }
.page-heading { max-width: 850px; margin-bottom: 2.5rem; }
.breadcrumb { font-size: .85rem; margin-bottom: 2rem; }
.color-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1.25rem; }
.color-card { min-width: 0; border: 1px solid var(--line); border-radius: 5px; overflow: hidden; background: #fff; }
.swatch { height: 130px; }
.card-info { padding: 1rem 1.2rem 1.2rem; }
.card-info h2 { font-size: 1.1rem; margin-bottom: .5rem; }
.card-info h2 a { display: inline-flex; min-height: 44px; align-items: center; color: var(--ink); }
.card-info p:last-child { margin-bottom: 0; font-size: .85rem; }
.system-label { font-size: .7rem; margin-bottom: .15rem; }
.source-summary { margin-top: 3rem; padding-top: 2rem; border-top: 1px solid var(--line); }
.small { font-size: .85rem; }
.hold-panel { max-width: 800px; padding: 2rem; border: 1px solid var(--line); border-radius: 6px; }
.detail-swatch { border: 1px solid var(--line); border-radius: 6px; overflow: hidden; margin-bottom: 1.5rem; display: grid; grid-template-columns: minmax(220px, 1fr) minmax(0, 1.5fr); }
.detail-swatch .swatch { height: auto; min-height: 280px; }
.detail-info { padding: 2rem; }
.facts { display: grid; grid-template-columns: 7em minmax(0, 1fr); gap: .6rem 1rem; margin: 0; }
.facts dt { font-size: .85rem; font-weight: 650; }
.facts dd { margin: 0; }
.text-link { display: inline-flex; align-items: center; min-height: 44px; }
.notice-text { white-space: pre-wrap; overflow-wrap: anywhere; font-family: inherit; font-size: .9rem; border-top: 1px solid var(--line); padding-top: 1.5rem; margin-top: 2rem; }
.license-text { max-width: 900px; }
footer { max-width: 1240px; margin: auto; border-top: 1px solid var(--line); padding: 2rem; }
footer > p:first-child { font-weight: 750; margin-bottom: .5rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 1rem 2rem; margin-bottom: 1rem; }
.footer-links a { min-height: 44px; display: inline-flex; align-items: center; font-size: .9rem; }
.skip-link { position: absolute; left: 1rem; top: -100px; background: white; padding: .75rem; z-index: 1; }
.skip-link:focus { top: .75rem; }
#studio-controls > section, #studio-form { margin-top: 2rem; }
#studio-form, #studio-leave { padding: 1.25rem; border: 1px solid var(--line); border-radius: 6px; }
#studio-form select, #studio-form input { width: 100%; margin-bottom: 1rem; }
#studio-form[data-mode="css"] label[for="studio-hex"], #studio-form[data-mode="hex"] label[for="studio-css"] { display: none; }
#studio-status { min-height: 1.8em; }
.studio-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); list-style: none; padding: 0; gap: 1rem; }
.studio-slot { min-width: 0; border: 1px solid var(--line); border-radius: 5px; overflow: hidden; }
.studio-swatch { height: 130px; }
.studio-info { padding: 1rem; min-width: 0; }
.studio-slot-title { font-weight: 700; }
.studio-info a { display: inline-flex; min-height: 44px; align-items: center; }
.studio-info .action-row button { flex: 1 1 auto; }
.studio-roles { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.studio-roles > div { min-width: 0; }
.studio-roles select { width: 100%; }
@media (max-width: 1000px) { .studio-list { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) {
  .studio-list, .studio-roles { grid-template-columns: minmax(0, 1fr); }
  #studio-form, #studio-leave { padding: 1rem; }
  #studio-controls button { white-space: normal; overflow-wrap: anywhere; }
}
@media (max-width: 1000px) { .category-grid, .color-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) {
  .contrast-tools { padding: 1rem; }
  .contrast-fields, .contrast-verdicts { grid-template-columns: 1fr; gap: .3rem; }
  .contrast-verdicts dd { margin-bottom: .75rem; }
  .filter-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .75rem; }
  .search-controls, .copy-tools { padding: 1rem; }
  .input-color { align-items: flex-start; }
  .header-inner { padding: 1rem 1.25rem; gap: .3rem; }
  .brand { width: 100%; }
  nav { width: 100%; justify-content: space-between; gap: .2rem .75rem; }
  main { padding: 1.75rem 1.25rem 3rem; }
  .intro { padding: 1.25rem 0 2rem; }
  .wide-break { display: none; }
  .category-card { padding: 1.15rem; }
  .color-grid { gap: .75rem; }
  .card-info { padding: .6rem .75rem 1rem; }
  .swatch { height: 105px; }
  .detail-swatch { display: block; }
  .detail-swatch .swatch { height: 200px; min-height: 0; }
  .detail-info, .hold-panel, .scope-note { padding: 1.25rem; }
  .facts { grid-template-columns: 1fr; gap: .2rem; }
  .facts dd { margin-bottom: .6rem; }
  footer { padding: 1.5rem 1.25rem; }
}
@media (max-width: 360px) { .category-grid, .color-grid { grid-template-columns: 1fr; } .swatch { height: 120px; } }

.studio-preview-section { margin-top: 3rem; padding-top: 2rem; border-top: 1px solid var(--line); min-width: 0; }
.studio-preview-help, .studio-preview-count { margin: .75rem 0; }
.studio-preview-legend, .studio-preview-results { padding-left: 1.5rem; overflow-wrap: anywhere; }
.studio-preview-role, .studio-preview-pair { margin: .5rem 0; min-width: 0; }
.studio-preview-sample, .studio-preview-sample * {
  box-sizing: border-box; min-width: 0; max-width: 100%; margin: 0; padding: 0;
  color: inherit; background-color: transparent; background-image: none; border: 0;
  opacity: 1; filter: none; box-shadow: none; text-shadow: none; mix-blend-mode: normal;
  overflow-wrap: anywhere; font-family: inherit; line-height: 1.8;
}
.studio-preview-sample { width: 960px; max-width: 100%; padding: 24px; margin: 1.5rem 0; color: var(--studio-preview-text); background-color: var(--studio-preview-background); }
.studio-preview-sample[data-layout="sp"] { width: 390px; }
.studio-preview-site-name { font-size: 1rem; font-weight: 700; margin-bottom: 1rem; }
.studio-preview-title { font-size: 1.75rem; font-weight: 750; margin-bottom: 1rem; }
.studio-preview-intro { font-size: 1rem; margin-bottom: 1.5rem; }
.studio-preview-primary { color: var(--studio-preview-onPrimary); background-color: var(--studio-preview-primary); font-size: 1rem; padding: 24px; margin-bottom: 24px; }
.studio-preview-cards { display: grid; grid-template-columns: minmax(0, 1fr); gap: 24px; }
@supports (grid-template-columns: repeat(auto-fit, minmax(min(100%, 308px), 1fr))) {
  .studio-preview-cards { grid-template-columns: repeat(auto-fit, minmax(min(100%, 308px), 1fr)); }
}
.studio-preview-sample[data-layout="sp"] .studio-preview-cards { grid-template-columns: minmax(0, 1fr); }
.studio-preview-card { color: var(--studio-preview-text); background-color: var(--studio-preview-surface); border: 1px solid var(--studio-preview-border); padding: 24px; }
.studio-preview-card-title { font-size: 1.25rem; font-weight: 700; margin-bottom: .75rem; }
.studio-preview-card-text { font-size: 1rem; }
.studio-preview-secondary, .studio-preview-accent { height: 24px; margin-top: 24px; }
.studio-preview-secondary { background-color: var(--studio-preview-secondary); }
.studio-preview-accent { background-color: var(--studio-preview-accent); }

.studio-optional-section { margin-top: 3rem; padding-top: 2rem; border-top: 1px solid var(--line); min-width: 0; overflow-wrap: anywhere; }
.studio-toolnav { margin-bottom: 1.5rem; padding: .5rem 1rem; border: 1px solid var(--line); border-radius: 6px; background: var(--soft); }
.studio-toolnav a { font-weight: 650; }
.studio-disclosure { margin-top: 1rem; border: 1px solid var(--line); border-radius: 6px; min-width: 0; }
.studio-disclosure:first-of-type { margin-top: 2rem; }
.studio-disclosure > summary { cursor: pointer; padding: 1rem; min-height: 44px; }
.studio-disclosure > summary h2 { display: inline; margin: 0; font-size: 1.15rem; }
.studio-disclosure-teaser { display: block; margin-top: .25rem; font-size: .9rem; font-weight: 400; }
.studio-disclosure[open] > summary { border-bottom: 1px solid var(--line); }
.studio-disclosure > .studio-optional-section { margin: 0; padding: 1rem; border: 0; scroll-margin-top: 1rem; }
.studio-optional-section *, .studio-optional-section [id$="-host"] { min-width: 0; max-width: 100%; box-sizing: border-box; }
.studio-optional-section button { margin: .25rem; white-space: normal; overflow-wrap: anywhere; }
.studio-optional-section label { display: block; margin-top: .75rem; }
.studio-optional-section input, .studio-optional-section select, .studio-optional-section textarea { width: 100%; }
.studio-optional-section textarea { display: block; min-height: 7rem; resize: vertical; overflow-wrap: anywhere; white-space: pre-wrap; word-break: break-all; }
.studio-optional-section ol, .studio-optional-section ul { padding-left: 1.5rem; }
.studio-optional-section li { margin: .5rem 0; overflow-wrap: anywhere; }
#studio-image [data-image="image"] { display: block; max-width: 100%; height: auto; margin: 1rem 0; }
#studio-image [data-image="point-form"] { display: grid; grid-template-columns: minmax(0, 1fr); gap: .5rem; }
#studio-image [data-image="candidate-swatch"], #studio-image [data-image="point-swatch"] { display: inline-block; width: 3rem; height: 3rem; vertical-align: middle; border: 1px solid var(--line); opacity: 1; filter: none; }

/* Derived surfaces remain independent from the original P2-02 sample. */
#studio-presets :focus-visible, #studio-tones :focus-visible, #studio-vision :focus-visible {
  outline: 3px solid var(--ink); outline-offset: 3px;
}
#studio-presets [data-presets="swatch"], #studio-tones [data-tones="swatch"], #studio-vision [data-vision="swatch"] {
  display: inline-block; width: 3rem; height: 3rem; vertical-align: middle; border: 1px solid var(--line);
}
#studio-tones [data-tones="rows"] { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr)); gap: 1rem; }
#studio-tones [data-tones="row"] { border: 1px solid var(--line); padding: .75rem; }
#studio-vision-host { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
#studio-vision-host > :not([data-vision="original"]):not([data-vision="derived"]) { grid-column: 1 / -1; }
#studio-vision [data-vision="sample"] { padding: 1.25rem; overflow-wrap: anywhere; }
#studio-vision [data-vision="primary"], #studio-vision [data-vision="surface"] { padding: 1rem; }
#studio-vision [data-vision="secondary"], #studio-vision [data-vision="accent"] { height: 1.5rem; margin-top: 1rem; }
@media (max-width: 640px) { #studio-vision-host { grid-template-columns: minmax(0, 1fr); } }
/* Project previews use the captured opaque value without changing its appearance. */
.studio-project-swatch { display: inline-block; width: 2.5rem; height: 2.5rem; border: 1px solid var(--line, #ccd2d8); vertical-align: middle; margin-inline-start: .75rem; }
#studio-projects-host { display: grid; gap: .75rem; }
#studio-projects-host[hidden] { display: none; }
#studio-projects-title, #studio-projects-select { width: 100%; min-width: 0; }
#studio-projects-preview { overflow-wrap: anywhere; }
#studio-presets [data-rule-assist="panel"] { min-width: 0; max-width: 100%; overflow-wrap: anywhere; }
#studio-rule-assist-input { width: 100%; min-width: 0; max-width: 100%; }
/* Private dictionary values stay plain text; only validated opaque HEX colors a swatch. */
#studio-packs-host { display: grid; grid-template-columns: minmax(0, 1fr); gap: .75rem; min-width: 0; }
#studio-packs-host[hidden], #studio-packs-host [hidden] { display: none; }
#studio-packs-host input, #studio-packs-host select, #studio-packs-host textarea { width: 100%; min-width: 0; max-width: 100%; }
#studio-packs-host p, #studio-packs-metadata, #studio-packs-results { overflow-wrap: anywhere; min-width: 0; }
#studio-packs-host :focus-visible { outline: 3px solid var(--ink); outline-offset: 3px; }
#studio-packs-results > li { border-block-end: 1px solid var(--line); padding-block: .75rem; }
#studio-packs .studio-project-swatch { opacity: 1; filter: none; box-shadow: none; }

/* Named dictionary surfaces always show the exact opaque source HEX. */
.builtin-surface { height: 130px; opacity: 1; filter: none; box-shadow: none; }
.detail-swatch .builtin-surface { height: auto; min-height: 280px; }
.named-saved-surface { display: inline-block; width: 2.5rem; height: 2.5rem; margin-inline-end: .7rem; vertical-align: middle; border: 1px solid var(--line); opacity: 1; filter: none; box-shadow: none; }
#builtin-query, #builtin-copy-manual-value { width: 100%; margin: .4rem 0 .7rem; }
#builtin-favorites-tools, #builtin-page .source-summary { min-width: 0; overflow-wrap: anywhere; }
#builtin-favorites-list { padding-inline-start: 1.5rem; }
@media (max-width: 700px) { .detail-swatch .builtin-surface { height: 200px; min-height: 0; } }