/* cycau.com — デザイン方針: 素朴・実用・読みやすさ（紙のような質感、落ち着いたトーン） */
:root {
  --bg: #faf8f5;
  --bg-elevated: #ffffff;
  --surface: #f3f1ed;
  --text: #1c1917;
  --text-muted: #57534e;
  --border: #e7e5e4;
  --accent: #0f766e;
  --accent-hover: #0d9488;
  --accent-soft: rgba(15, 118, 110, 0.08);
  --shadow: 0 1px 2px rgba(28, 25, 23, 0.06), 0 8px 24px rgba(28, 25, 23, 0.06);
  --radius: 12px;
  --radius-lg: 20px;
  --font-sans: "Noto Sans JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", ui-monospace, monospace;
  --max: 72rem;
  /* TOP など：リード・カード列・お問い合わせを同じカラム幅に（PC で帯が揃う） */
  --content-max: 52rem;
  --header-h: 4rem;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  overflow-x: clip;
  max-width: 100%;
  /* 縦スクロールの有無で main / ヘッダーの水平位置がずれないようにする */
  scrollbar-gutter: stable;
}

body {
  margin: 0;
  overflow-x: clip;
  max-width: 100%;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  background-image: radial-gradient(ellipse 120% 80% at 50% -20%, rgba(15, 118, 110, 0.06), transparent 50%);
  min-height: 100vh;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

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

img {
  max-width: 100%;
  height: auto;
}

code,
pre {
  font-family: var(--font-mono);
  font-size: 0.875em;
}

code:not(pre code) {
  overflow-wrap: anywhere;
  word-break: break-word;
}

pre {
  max-width: 100%;
  min-width: 0;
  padding: 1rem 1.25rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  line-height: 1.5;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  width: 100%;
  flex-shrink: 0;
  height: var(--header-h);
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border);
  background: rgba(250, 248, 245, 0.92);
  backdrop-filter: blur(10px);
}

.site-header__inner {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-logo {
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
}

.site-logo:hover {
  color: var(--accent);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  align-items: center;
}

.site-nav a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--accent);
}

.site-main {
  box-sizing: border-box;
  width: 100%;
  max-width: min(var(--max), 100%);
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
  min-width: 0;
  overflow-wrap: anywhere;
}

.hero {
  text-align: center;
  padding: 2rem 0 3rem;
}

.hero__eyebrow {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0 0 0.75rem;
}

.hero__mark {
  width: 64px;
  height: 64px;
  display: block;
  object-fit: contain;
  filter: drop-shadow(0 1px 2px rgba(28, 25, 23, 0.06));
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.page-intro h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.page-intro .page-intro__lead {
  margin: 0 0 0.75rem;
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.65;
}

.page-intro .page-intro__lead:last-of-type {
  margin-bottom: 0;
}

.hero__title {
  margin: 0 0 1rem;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.25;
}

.hero__lead {
  margin: 0 auto;
  max-width: min(var(--content-max), 100%);
  font-size: 1.0625rem;
  color: var(--text-muted);
}

.section {
  margin-top: 3rem;
}

.section__title {
  margin: 0 0 1.25rem;
  font-size: 1.25rem;
  font-weight: 700;
}

.section--catalog .section__title {
  text-align: center;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr));
  gap: 1.25rem;
}

.card-grid--center {
  justify-content: center;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 380px));
  max-width: min(var(--content-max), 100%);
  margin-inline: auto;
}

.section--catalog .card {
  text-align: left;
}

.card {
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.card:hover {
  border-color: rgba(15, 118, 110, 0.35);
  box-shadow: 0 4px 12px rgba(28, 25, 23, 0.08), 0 16px 40px rgba(15, 118, 110, 0.08);
}

.card__icon {
  width: 56px;
  height: 56px;
  flex-shrink: 0;
  object-fit: contain;
}

.card__name {
  margin: 0 0 1rem;
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.3;
}

.card__head-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text);
  text-decoration: none;
}

.card__head-link:hover {
  color: var(--accent);
}

.card__desc {
  margin: 0 0 1rem;
  flex: 1;
  font-size: 0.9375rem;
  color: var(--text-muted);
}

.card__link {
  font-size: 0.9375rem;
  font-weight: 600;
}

.contact-box {
  box-sizing: border-box;
  max-width: min(var(--content-max), 100%);
  margin-top: 2rem;
  margin-inline: auto;
  padding: 1.5rem 1.75rem;
  background: var(--accent-soft);
  border: 1px solid rgba(15, 118, 110, 0.2);
  border-radius: var(--radius-lg);
  text-align: center;
}

.contact-box .section__title {
  margin-bottom: 0.75rem;
}

.contact-box p {
  margin: 0 0 0.5rem;
  font-size: 0.9375rem;
  color: var(--text-muted);
}

.contact-box a {
  font-weight: 600;
  font-size: 1.0625rem;
}

.page-intro {
  margin-bottom: 2rem;
}

.page-intro h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.02em;
}

.page-intro p {
  margin: 0;
  color: var(--text-muted);
  max-width: 42rem;
}

.page-intro--split {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  flex-wrap: wrap;
}

.page-intro__icon {
  flex-shrink: 0;
  width: 72px;
  height: auto;
}

.prose h2 {
  margin: 2.25rem 0 0.75rem;
  font-size: 1.25rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--border);
}

.prose h3 {
  margin: 1.75rem 0 0.5rem;
  font-size: 1.0625rem;
}

.prose p {
  margin: 0.75rem 0;
}

.prose ul {
  margin: 0.75rem 0;
  padding-left: 1.35rem;
}

.prose li {
  margin: 0.35rem 0;
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
}

.feature-list li {
  position: relative;
  padding-left: 1.5rem;
  margin: 0.5rem 0;
}

.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.85;
}

.compare-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  max-width: 100%;
  margin: 1.25rem 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
  min-width: 0;
  table-layout: fixed;
}

.compare-table th,
.compare-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  vertical-align: middle;
  border-bottom: 1px solid var(--border);
}

.compare-table th {
  background: var(--surface);
  font-weight: 600;
  white-space: normal;
  word-break: break-word;
}

.compare-table th:not(:first-child),
.compare-table td:not(:first-child) {
  text-align: center;
}

.compare-table td {
  word-break: break-word;
}

.compare-table tr:last-child td {
  border-bottom: none;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0 0;
}

.badge {
  display: inline-block;
  padding: 0.25rem 0.65rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 999px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.1rem;
  font-size: 0.9375rem;
  font-weight: 600;
  font-family: inherit;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
}

.btn:hover {
  background: var(--accent-hover);
  color: #fff;
}

.btn--ghost {
  color: var(--accent);
  background: transparent;
  border: 1px solid var(--accent);
}

.btn--ghost:hover {
  background: var(--accent-soft);
  color: var(--accent-hover);
}

.link-list {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0 0;
}

.link-list li {
  margin: 0.4rem 0;
}

.site-footer {
  margin-top: auto;
  padding: 2rem 1.25rem;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.site-footer a {
  color: var(--text-muted);
}

.layout-footer-push {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  max-width: 100%;
  overflow-x: clip;
}

.layout-footer-push .site-main {
  flex: 1;
  min-width: 0;
}

/* Dinosaur7 legacy doc spacing */
.doc-legacy h1 {
  font-size: 1.75rem;
  margin: 1.5rem 0 0.75rem;
}

.doc-legacy h2 {
  font-size: 1.25rem;
  margin: 2rem 0 0.65rem;
}

.doc-legacy h3 {
  font-size: 1.05rem;
  margin: 1.25rem 0 0.5rem;
}

.doc-legacy h4 {
  font-size: 1.05rem;
  margin: 1.25rem 0 0.5rem;
}

.doc-legacy .download-line {
  margin: 0.5rem 0;
}

.doc-legacy.prose .doc-prose-subheading {
  font-size: 1.125rem;
  margin: 1.25rem 0 0.5rem;
}

/* Dinosaur7 ドキュメント：本家に近いインデント（app.storeData 補足行・JSON 例） */
.doc-legacy.prose p.doc-prose-indent {
  padding-left: 40px;
  margin: 0.35rem 0;
  border-left: 3px solid var(--border);
  margin-left: 2px;
}

.doc-legacy.prose p.doc-prose-indent--deep {
  padding-left: 60px;
  border-left-color: rgba(15, 118, 110, 0.35);
}

.doc-legacy.prose p strong {
  font-weight: 600;
  color: var(--text);
}

.download-block {
  margin: 0.5rem 0 1.5rem;
  padding: 1rem 1.25rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  gap: 0;
}

.download-row {
  display: grid;
  grid-template-columns: minmax(8rem, 12rem) 1fr auto;
  gap: 0.5rem 1rem;
  align-items: baseline;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9375rem;
}

.download-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.download-row:first-child {
  padding-top: 0;
}

.download-row__label {
  font-weight: 600;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.download-row__meta {
  font-size: 0.8125rem;
  color: var(--text-muted);
  text-align: right;
  white-space: nowrap;
}

@media (max-width: 560px) {
  .download-row {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

  .download-row__meta {
    text-align: left;
  }
}

/* highlight.js（HTML / JS など）— サイトのトーンに合わせて調整 */
pre code.hljs {
  display: block;
  max-width: 100%;
  padding: 0;
  background: transparent !important;
}

/* ----- レスポンシブ ----- */
@media (max-width: 768px) {
  /* 狭い画面では stable ガターが余白として効き、横方向のズレや余白の原因になりやすい */
  html {
    scrollbar-gutter: auto;
  }

  .site-main {
    padding: 1.5rem 1rem 3rem;
  }

  .site-header__inner {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .site-logo {
    font-size: 1.05rem;
  }

  .hero {
    padding: 1.5rem 0 2.5rem;
  }

  .section {
    margin-top: 2.25rem;
  }

  .contact-box {
    padding: 1.25rem 1rem;
  }

  .prose h2 {
    font-size: 1.125rem;
  }

  pre {
    padding: 0.75rem 1rem;
    font-size: 0.8125rem;
  }

  .site-footer {
    padding: 1.5rem 1rem;
  }
}

@media (max-width: 640px) {
  .site-header {
    height: auto;
    min-height: var(--header-h);
    padding: 0.5rem 0;
  }

  .site-header__inner {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }

  .site-nav {
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
  }
}

@media (max-width: 560px) {
  .page-intro--split {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }

  .page-intro--split > div {
    width: 100%;
    text-align: left;
  }
}

@media (max-width: 480px) {
  .doc-legacy h1 {
    font-size: clamp(1.35rem, 5.5vw, 1.75rem);
  }

  .doc-legacy.prose p.doc-prose-indent {
    padding-left: 1rem;
    margin-left: 0;
    border-left-width: 2px;
  }

  .doc-legacy.prose p.doc-prose-indent--deep {
    padding-left: 1.25rem;
  }
}