/* P1A visual foundation — 静かな作業台. Reset + layout + components, all
   values sourced from tokens.css. No ranking badges, no strong color bands. */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--text-body-size);
  line-height: var(--text-body-line);
  color: var(--color-text-primary);
  background: var(--color-bg-base);
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--color-accent-primary);
}

a:hover {
  color: var(--color-accent-deep);
}

:focus-visible {
  outline: 2px solid var(--color-accent-deep);
  outline-offset: 2px;
}

h1,
h2,
h3 {
  font-family: var(--font-heading);
  color: var(--color-text-heading);
  line-height: 1.4;
}

.wt-container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Site header */
.wt-header {
  background: var(--color-bg-surface);
  border-bottom: 1px solid var(--color-border-soft);
}

.wt-header-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 16px 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 24px;
}

.wt-wordmark {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-text-heading);
  text-decoration: none;
}

.wt-nav {
  list-style: none;
  margin: 0;
  padding: 0;
  min-width: 0;
}

.wt-nav li {
  display: inline-block;
  margin: 2px 20px 2px 0;
}

.wt-nav a {
  color: var(--color-text-primary);
  text-decoration: none;
  font-size: 0.95rem;
}

.wt-nav a:hover,
.wt-nav a[aria-current="page"] {
  color: var(--color-accent-primary);
}

/* Home hero (P5D: Text | Visual — copy left, V3 hero image right on
   PC/Tablet; stacked Text -> Visual -> existing entry cards on SP. Reuses
   the same 560px collapse point as .wt-entry-grid/.wt-judgment-grid below,
   rather than introducing a hero-only breakpoint.) */
.wt-hero {
  padding: var(--space-section-gap) 0 calc(var(--space-section-gap) / 2);
}

.wt-hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 40px;
  align-items: center;
}

.wt-hero-copy {
  text-align: left;
}

.wt-hero-eyebrow {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin: 0 0 8px;
}

.wt-hero h1 {
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  margin: 0 0 16px;
}

.wt-hero-lead {
  color: var(--color-text-primary);
  max-width: 42em;
  margin: 0;
}

.wt-hero-media img {
  width: 100%;
  height: auto;
  /* Wider than the 3:2 source — the PC/Tablet column is proportionally
     wider than it is tall, so object-fit: cover takes a light top/bottom
     crop here (source content is centered enough to tolerate it). */
  aspect-ratio: 7 / 4;
  object-fit: cover;
  object-position: center;
  border-radius: var(--radius-card);
}

@media (max-width: 560px) {
  .wt-hero-inner {
    grid-template-columns: 1fr;
  }

  .wt-hero-copy {
    text-align: center;
  }

  .wt-hero-lead {
    margin: 0 auto;
  }

  .wt-hero-media {
    order: 2;
  }

  .wt-hero-media img {
    /* SP shows the source's native 3:2 framing directly — no crop. */
    aspect-ratio: 3 / 2;
  }
}

/* Breadcrumb */
.wt-breadcrumb {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin: 20px 0 0;
}

.wt-breadcrumb a {
  color: var(--color-text-muted);
}

.wt-breadcrumb a:hover {
  color: var(--color-accent-primary);
}

/* Page head (non-home) */
.wt-page-head {
  padding: 20px 0 var(--space-section-gap);
}

.wt-page-head h1 {
  font-size: clamp(1.3rem, 3vw, 1.7rem);
  margin: 8px 0 12px;
}

.wt-intro {
  color: var(--color-text-muted);
  max-width: 640px;
  margin: 0;
}

/* Groups */
.wt-group {
  margin-bottom: var(--space-section-gap);
}

.wt-group h2 {
  font-size: 1.05rem;
  margin: 0 0 16px;
}

/* Card grid */
.wt-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

@media (max-width: 860px) {
  .wt-card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  .wt-card-grid {
    grid-template-columns: 1fr;
  }
}

.wt-card {
  display: block;
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-card);
  padding: var(--space-card-padding);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s ease;
}

.wt-card:hover {
  border-color: var(--color-accent-primary);
}

.wt-card h2,
.wt-card h3 {
  font-size: 1rem;
  margin: 0 0 8px;
}

.wt-card p {
  margin: 0 0 8px;
  color: var(--color-text-primary);
  font-size: 0.95rem;
}

.wt-card .wt-cue {
  color: var(--color-accent-primary);
  font-size: 0.85rem;
  margin-bottom: 0;
}

/* Home entry blocks */
.wt-entry-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin: 0 0 28px;
}

@media (max-width: 560px) {
  .wt-entry-grid {
    grid-template-columns: 1fr;
  }
}

.wt-entry-secondary {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin: 0 0 var(--space-section-gap);
}

/* Footer */
.wt-footer {
  background: var(--color-bg-subtle);
  border-top: 1px solid var(--color-border-soft);
  margin-top: var(--space-section-gap);
}

.wt-footer-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 32px 20px;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.wt-footer-brand {
  color: var(--color-text-heading);
  font-weight: 700;
  margin: 0 0 12px;
}

.wt-footer-nav {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
}

.wt-footer-nav li {
  display: inline-block;
  margin: 2px 20px 2px 0;
}

.wt-footer-nav a {
  color: var(--color-text-muted);
  text-decoration: none;
}

.wt-footer-nav a:hover {
  color: var(--color-accent-primary);
}

.wt-footer-publication {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  font-size: 0.85rem;
}

.wt-footer-publication li {
  display: inline-block;
  margin: 2px 16px 2px 0;
}

.wt-footer-publication a {
  color: var(--color-text-muted);
  text-decoration: none;
}

.wt-footer-publication a:hover {
  color: var(--color-accent-primary);
}

.wt-footer-operator {
  margin: 0;
}

/* Long-form article (P1B) */

.wt-article {
  max-width: 720px;
}

.wt-summary {
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-card);
  padding: var(--space-card-padding);
  margin: 24px 0 var(--space-section-gap);
}

.wt-summary-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  margin: 0 0 12px;
}

.wt-summary-list {
  margin: 0;
}

.wt-summary-item {
  margin: 0 0 12px;
}

.wt-summary-item:last-child {
  margin-bottom: 0;
}

.wt-summary-item dt {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--color-text-heading);
  margin: 0 0 2px;
}

.wt-summary-item dd {
  margin: 0;
  font-size: 0.95rem;
}

.wt-judgment-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 0 0 var(--space-section-gap);
}

@media (max-width: 560px) {
  .wt-judgment-grid {
    grid-template-columns: 1fr;
  }
}

.wt-judgment-item {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-card);
  padding: 16px 20px;
}

.wt-judgment-item h2 {
  font-size: 0.95rem;
  margin: 0 0 6px;
}

.wt-judgment-item p {
  margin: 0;
  font-size: 0.9rem;
}

.wt-article-body {
  margin-bottom: var(--space-section-gap);
}

.wt-article-section {
  margin-bottom: 40px;
}

.wt-article-section h2 {
  font-size: 1.15rem;
  margin: 0 0 12px;
}

.wt-article-section p {
  margin: 0 0 16px;
}

.wt-article-list {
  margin: 0 0 16px;
  padding-left: 1.4em;
}

.wt-article-list li {
  margin-bottom: 6px;
}

.wt-current-note {
  border-left: 3px solid var(--color-border-soft);
  padding: 4px 0 4px 14px;
  margin: 0 0 16px;
}

.wt-current-note-label {
  display: block;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: 2px;
}

.wt-current-note p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-style: italic;
}

.wt-snapshot {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-card);
  padding: var(--space-card-padding);
  margin: 0 0 40px;
}

.wt-snapshot-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-accent-deep);
  margin: 0 0 4px;
}

.wt-snapshot h2 {
  font-size: 1rem;
  margin: 0 0 16px;
}

.wt-snapshot-checked {
  text-transform: none;
  letter-spacing: normal;
}

.wt-snapshot-table-wrap {
  overflow-x: auto;
}

.wt-snapshot-table {
  width: 100%;
  min-width: 480px;
  border-collapse: collapse;
  table-layout: fixed;
  font-size: 0.85rem;
}

.wt-snapshot-table th,
.wt-snapshot-table td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--color-border-soft);
  overflow-wrap: break-word;
}

.wt-snapshot-table th:first-child,
.wt-snapshot-table td:first-child {
  width: 28%;
}

.wt-snapshot-table thead th {
  color: var(--color-text-heading);
  font-weight: 700;
}

.wt-snapshot-source,
.wt-snapshot-note {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin: 12px 0 0;
}

.wt-sources {
  margin: 0 0 var(--space-section-gap);
  padding-top: 20px;
  border-top: 1px solid var(--color-border-soft);
}

.wt-sources-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin: 0 0 10px;
}

.wt-sources-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.wt-sources-list li {
  margin-bottom: 8px;
  font-size: 0.9rem;
}

.wt-sources-checked {
  color: var(--color-text-muted);
  font-size: 0.8rem;
  margin-left: 6px;
}

.wt-next-read {
  margin: 0 0 32px;
  padding: 16px 20px;
  background: var(--color-bg-subtle);
  border-radius: var(--radius-card);
}

.wt-next-read-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin: 0 0 8px;
}

.wt-next-read ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.wt-next-read li {
  margin-bottom: 6px;
}

.wt-next-read-context {
  color: var(--color-text-muted);
  font-size: 0.8rem;
  margin-left: 6px;
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }
}