/* =============================================================================
   Creo Portal Theme
   デフォルト: ダーク（Landing の既存デザイン）
   data-theme="light" でライトに切替
   ============================================================================= */

:root {
  /* --- Brand Colors (Mint Green) --- */
  --color-primary: oklch(0.75 0.12 160);
  --color-primary-hover: oklch(0.80 0.13 160);
  --color-primary-active: oklch(0.70 0.11 160);
  --color-primary-subtle: oklch(0.25 0.05 160);

  --color-secondary: oklch(0.70 0.12 300);

  /* --- Semantic Colors --- */
  --color-success: oklch(0.70 0.15 145);
  --color-warning: oklch(0.75 0.14 85);
  --color-error: oklch(0.70 0.18 25);
  --color-info: oklch(0.70 0.12 240);

  /* --- Text Colors (Dark base) --- */
  --color-text-primary: oklch(0.95 0.01 260);
  --color-text-secondary: oklch(0.75 0.01 260);
  --color-text-tertiary: oklch(0.60 0.01 260);

  /* --- Background Colors (Dark base) --- */
  --color-bg-base: oklch(0.13 0.02 160);
  --color-bg-subtle: oklch(0.16 0.02 160);
  --color-bg-muted: oklch(0.20 0.02 160);
  --color-bg-emphasis: oklch(0.26 0.02 160);

  /* --- Surface Colors --- */
  --color-surface: oklch(0.18 0.02 160);
  --color-surface-raised: oklch(0.22 0.02 160);
  --color-surface-overlay: oklch(0.18 0.02 160 / 0.95);

  /* --- Border Colors --- */
  --color-border: oklch(0.28 0.02 160);
  --color-border-subtle: oklch(0.23 0.015 160);
  --color-border-emphasis: oklch(0.38 0.02 160);

  /* --- Shadow --- */
  --color-shadow: oklch(0 0 0 / 0.3);
  --shadow-sm: 0 1px 3px 0 var(--color-shadow);
  --shadow-md: 0 4px 6px -1px var(--color-shadow), 0 2px 4px -2px var(--color-shadow);
  --shadow-lg: 0 10px 15px -3px var(--color-shadow), 0 4px 6px -4px var(--color-shadow);

  /* --- Gradient (Hero) --- */
  --gradient-hero: linear-gradient(
    135deg,
    oklch(0.15 0.04 160) 0%,
    oklch(0.13 0.03 175) 50%,
    oklch(0.17 0.05 165) 100%
  );

  /* --- Typography --- */
  --font-family-sans: 'Creo Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-family-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;

  /* --- Spacing --- */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;

  /* --- Border Radius --- */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* --- Motion --- */
  --duration-fast: 120ms;
  --duration-normal: 250ms;
  --duration-slow: 400ms;
  --ease-enter: cubic-bezier(0.22, 1, 0.36, 1);
}

/* =============================================================================
   Light Theme
   ============================================================================= */

[data-theme="light"] {
  --color-primary: oklch(0.55 0.18 160);
  --color-primary-hover: oklch(0.50 0.19 160);
  --color-primary-active: oklch(0.45 0.20 160);
  --color-primary-subtle: oklch(0.92 0.06 160);

  --color-text-primary: oklch(0.20 0.02 260);
  --color-text-secondary: oklch(0.40 0.02 260);
  --color-text-tertiary: oklch(0.55 0.01 260);

  --color-bg-base: oklch(0.98 0.005 160);
  --color-bg-subtle: oklch(0.96 0.01 160);
  --color-bg-muted: oklch(0.93 0.01 160);
  --color-bg-emphasis: oklch(0.88 0.02 160);

  --color-surface: oklch(1 0 0);
  --color-surface-raised: oklch(1 0 0);
  --color-surface-overlay: oklch(1 0 0 / 0.9);

  --color-border: oklch(0.88 0.01 160);
  --color-border-subtle: oklch(0.92 0.005 160);
  --color-border-emphasis: oklch(0.80 0.02 160);

  --color-shadow: oklch(0.20 0.02 260 / 0.08);
  --shadow-sm: 0 1px 3px 0 var(--color-shadow);
  --shadow-md: 0 4px 6px -1px var(--color-shadow), 0 2px 4px -2px var(--color-shadow);
  --shadow-lg: 0 10px 15px -3px var(--color-shadow), 0 4px 6px -4px var(--color-shadow);

  --gradient-hero: linear-gradient(
    135deg,
    oklch(0.96 0.04 160) 0%,
    oklch(0.94 0.03 175) 50%,
    oklch(0.97 0.05 165) 100%
  );
}

/* =============================================================================
   Creo Docs — 静的 docs ページの見た目。theme.css (色の変数) の後ろに連結して配る
   ============================================================================= */

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

html {
  color-scheme: dark;
  scroll-padding-top: 5rem;
}
[data-theme='light'] {
  color-scheme: light;
}

body.d-body {
  margin: 0;
  background: var(--color-bg-base);
  color: var(--color-text-primary);
  font-family: var(--font-family-sans);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-primary);
}
a:hover {
  color: var(--color-primary-hover);
}
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.d-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
.d-skip {
  position: absolute;
  left: -999px;
  top: 0.5rem;
  z-index: 20;
  padding: 0.5rem 1rem;
  background: var(--color-surface-raised);
}
.d-skip:focus {
  left: 0.5rem;
}

/* --- header --------------------------------------------------------------- */
.d-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1.5rem;
  background: var(--color-surface-overlay);
  border-bottom: 1px solid var(--color-border-subtle);
  backdrop-filter: blur(8px);
}
.d-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-primary);
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}
.d-brand-sub {
  color: var(--color-text-tertiary);
  font-weight: 400;
}
.d-search-form {
  flex: 1;
  max-width: 24rem;
}
.d-search-form input {
  width: 100%;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-subtle);
  color: var(--color-text-primary);
  font: inherit;
  font-size: 0.875rem;
}
.d-header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-left: auto;
  font-size: 0.875rem;
  white-space: nowrap;
}
.d-header-actions > a {
  color: var(--color-text-secondary);
  text-decoration: none;
}
.d-lang {
  display: flex;
  gap: 0.25rem;
}
.d-lang a {
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  text-decoration: none;
}
.d-lang a[aria-current] {
  background: var(--color-primary-subtle);
  color: var(--color-text-primary);
}
.d-theme {
  padding: 0.15rem 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  font: inherit;
}

/* --- layout --------------------------------------------------------------- */
.d-layout {
  display: grid;
  grid-template-columns: 15rem minmax(0, 46rem) 13rem;
  gap: 2.5rem;
  justify-content: center;
  padding: 2rem 1.5rem 4rem;
}
.d-layout-index {
  grid-template-columns: minmax(0, 46rem);
}

.d-sidebar,
.d-toc {
  position: sticky;
  top: 5rem;
  align-self: start;
  max-height: calc(100vh - 6rem);
  overflow-y: auto;
  font-size: 0.875rem;
}
.d-nav summary {
  display: none;
}
.d-sidebar h2,
.d-toc h2,
.d-index h2 {
  margin: 1.25rem 0 0.25rem;
  color: var(--color-text-tertiary);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.d-sidebar ul,
.d-toc ul,
.d-index ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
.d-sidebar li a,
.d-toc li a {
  display: block;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  text-decoration: none;
}
.d-sidebar li a[aria-current] {
  background: var(--color-primary-subtle);
  color: var(--color-text-primary);
}
.d-toc-3 a {
  padding-left: 1.25rem !important;
}
.d-index li {
  margin: 0.25rem 0;
}

/* --- article -------------------------------------------------------------- */
.d-breadcrumb {
  display: flex;
  gap: 0.5rem;
  color: var(--color-text-tertiary);
  font-size: 0.875rem;
}
.d-breadcrumb a {
  color: var(--color-text-tertiary);
}
.d-article h1 {
  margin: 0.5rem 0 0.5rem;
  font-size: 2rem;
  line-height: 1.3;
}
.d-lead {
  margin-top: 0;
  color: var(--color-text-secondary);
  font-size: 1.05rem;
}
.d-article h2 {
  margin-top: 2.5rem;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid var(--color-border-subtle);
  font-size: 1.4rem;
}
.d-article h3 {
  margin-top: 1.75rem;
  font-size: 1.1rem;
}
.d-anchor {
  margin-left: 0.4rem;
  color: var(--color-text-tertiary);
  text-decoration: none;
  opacity: 0;
}
h2:hover .d-anchor,
h3:hover .d-anchor {
  opacity: 1;
}
.d-article code {
  padding: 0.1rem 0.3rem;
  border-radius: var(--radius-sm);
  background: var(--color-bg-muted);
  font-family: var(--font-family-mono);
  font-size: 0.875em;
}
.d-code-wrap {
  position: relative;
}
.d-code {
  overflow-x: auto;
  padding: 1rem;
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  background: var(--color-bg-subtle);
}
.d-code code {
  padding: 0;
  background: none;
}
/* コピーボタンは包む div の右上。ボタンがあるときだけ pre の上を空けて、本文に重ねない */
.d-code-wrap .d-code {
  padding-top: 2.5rem;
}
.d-copy {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  padding: 0.1rem 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface-raised);
  color: var(--color-text-secondary);
  cursor: pointer;
  font: inherit;
  font-size: 0.75rem;
}
.d-article table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.d-article th,
.d-article td {
  padding: 0.4rem 0.6rem;
  border: 1px solid var(--color-border-subtle);
  text-align: left;
  vertical-align: top;
}
.d-article blockquote {
  margin: 1rem 0;
  padding: 0.25rem 1rem;
  border-left: 3px solid var(--color-primary);
  background: var(--color-bg-subtle);
  color: var(--color-text-secondary);
}
.d-reviewed {
  margin-top: 3rem;
  color: var(--color-text-tertiary);
  font-size: 0.8rem;
}
.d-pager {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 2rem;
}
.d-pager a {
  display: flex;
  flex-direction: column;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-decoration: none;
}
.d-pager a span {
  color: var(--color-text-tertiary);
  font-size: 0.75rem;
}
.d-pager-next {
  margin-left: auto;
  text-align: right;
}

/* --- search --------------------------------------------------------------- */
.d-search-status {
  color: var(--color-text-secondary);
}
.d-search-results {
  padding: 0;
  list-style: none;
}
.d-search-results li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-border-subtle);
}
.d-search-title {
  font-weight: 600;
}
.d-search-excerpt {
  margin: 0.25rem 0 0;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}
.d-search-excerpt mark {
  background: var(--color-primary-subtle);
  color: var(--color-text-primary);
}

/* --- entry / footer ------------------------------------------------------- */
.d-entry-links {
  margin: 4rem auto;
  max-width: 30rem;
}
.d-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  justify-content: center;
  padding: 2rem 1.5rem;
  border-top: 1px solid var(--color-border-subtle);
  color: var(--color-text-tertiary);
  font-size: 0.8rem;
}
.d-footer a {
  color: var(--color-text-tertiary);
}
.d-footer p {
  flex-basis: 100%;
  margin: 0;
  text-align: center;
}

/* --- responsive ----------------------------------------------------------- */
@media (max-width: 1200px) {
  .d-layout {
    grid-template-columns: 14rem minmax(0, 46rem);
  }
  .d-toc {
    display: none;
  }
}
@media (max-width: 800px) {
  .d-header {
    flex-wrap: wrap;
    padding: 0.75rem 1rem;
  }
  .d-search-form {
    order: 3;
    flex-basis: 100%;
    max-width: none;
  }
  .d-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 1rem;
    padding: 1rem 1rem 3rem;
  }
  .d-sidebar {
    position: static;
    max-height: none;
  }
  /* モバイルでは目次を畳める。JS 無しで動く <details> */
  .d-nav summary {
    display: list-item;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
  }
  .d-article h1 {
    font-size: 1.6rem;
  }
}