:root {
  --bg: #ffffff;
  --fg: #222222;
  --muted: #666666;
  --brand: #4c8bf5;
  --border: #dddddd;
  --panel: #f9f9fb;
  --link: #2a63d4;
  --close-btn: #dce8ff;
  --close-btn-hover: #c3d6ff;
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  color: var(--fg);
  background: var(--bg);
  font: 16px/1.7 system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans JP", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  -webkit-text-size-adjust: 100%;
}

body.company-page {
  min-height: 100%;
  background:
    radial-gradient(circle at 14% 8%, rgba(255, 202, 223, 0.48), transparent 30%),
    radial-gradient(circle at 86% 0%, rgba(210, 237, 255, 0.62), transparent 34%),
    linear-gradient(180deg, #fff7fb 0%, #f5fbff 45%, #ffffff 100%);
}

a {
  color: var(--link);
  text-decoration: underline;
}

a:hover {
  opacity: 0.9;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: clamp(12px, 2vw, 24px);
}

/* Header / Footer */
.site-header,
.site-footer {
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}

.site-footer {
  border-top: 1px solid var(--border);
  border-bottom: none;
}

.site-title {
  margin: 0 0 8px 0;
  font-size: clamp(20px, 2.6vw, 28px);
  letter-spacing: 0.02em;
  color: var(--fg);
}

/* Navigation Buttons */
.doc-nav {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.doc-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  text-decoration: none;
  color: var(--fg);
  background: #ffffff;
  transition: all 0.2s ease;
}

.doc-nav a:hover {
  background: #f0f4ff;
  border-color: #c5d7ff;
}

.doc-nav a[aria-current="page"] {
  background: var(--brand);
  color: white;
  border-color: var(--brand);
}

/* Close Button */
.close-btn {
  display: inline-block;
  padding: 8px 16px;
  border: none;
  border-radius: 999px;
  background: var(--close-btn);
  color: #1b3a7a;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s ease;
}

.close-btn:hover {
  background: var(--close-btn-hover);
}

/* Main Layout */
main.container {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: clamp(16px, 2vw, 28px);
  align-items: start;
}

/* TOC */
.toc {
  position: sticky;
  top: 16px;
  border: 1px solid var(--border);
  background: var(--panel);
  border-radius: 12px;
  padding: 16px;
}

.toc h2 {
  margin: 0 0 8px 0;
  font-size: 16px;
  color: var(--muted);
}

.toc ol {
  margin: 0;
  padding-left: 18px;
}

.toc a {
  text-decoration: none;
  color: var(--fg);
}

.toc a:hover {
  text-decoration: underline;
}

/* Document Body */
.doc {
  border: 1px solid var(--border);
  background: #ffffff;
  border-radius: 12px;
  padding: clamp(16px, 2vw, 28px);
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.doc h2 {
  margin-top: 0;
  font-size: clamp(18px, 2.2vw, 24px);
  border-left: 4px solid var(--brand);
  padding-left: 10px;
  color: var(--fg);
}

.doc p,
.doc li {
  word-break: break-word;
}

.doc ul {
  padding-left: 20px;
}

.company-table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0 24px;
  table-layout: fixed;
}

.company-table th,
.company-table td {
  padding: 16px 18px;
  border: 1px solid #d9e8f4;
  text-align: left;
  vertical-align: top;
  line-height: 1.75;
}

.company-table th {
  width: 180px;
  background: #f3f9ff;
  color: #35658f;
  font-weight: 700;
  white-space: nowrap;
}

.company-table td {
  background: #ffffff;
  color: #2f3f4c;
}

.company-header {
  border-bottom: 1px solid rgba(153, 189, 218, 0.34);
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(8px);
}

.company-header__inner {
  max-width: 1040px;
  padding-top: 26px;
  padding-bottom: 18px;
}

.company-page .site-title {
  color: #35658f;
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 700;
}

.company-header .doc-nav {
  gap: 10px;
}

.company-header .doc-nav a,
.company-section--links .doc-nav a {
  border-color: #cfe4f6;
  background: rgba(255, 255, 255, 0.92);
  color: #35658f;
  box-shadow: 0 4px 12px rgba(97, 146, 181, 0.08);
}

.company-header .doc-nav a:hover,
.company-section--links .doc-nav a:hover {
  background: #f2f9ff;
  border-color: #99bdda;
}

.company-header .doc-nav a[aria-current="page"] {
  background: linear-gradient(180deg, #ff9fbe 0%, #ff7f9c 100%);
  border-color: #ff8bbd;
  color: #ffffff;
}

main.company-main {
  max-width: 1040px;
  display: block;
  padding-top: clamp(22px, 4vw, 46px);
  padding-bottom: clamp(34px, 5vw, 64px);
}

.company-card {
  border: 1px solid rgba(153, 189, 218, 0.38);
  border-radius: 18px;
  padding: clamp(24px, 4vw, 48px);
  box-shadow: 0 18px 40px rgba(97, 146, 181, 0.14);
}

.company-card h2 {
  border-left-color: #ff8bbd;
  color: #35658f;
}

.company-section + .company-section {
  margin-top: 32px;
  padding-top: 28px;
  border-top: 1px solid #e4eef6;
}

.company-section p {
  color: #3f4f5c;
}

.company-section--links .doc-nav {
  gap: 12px;
  margin-top: 14px;
}

.company-section--links .doc-nav a {
  padding: 10px 16px;
}

.company-footer {
  border-top-color: rgba(153, 189, 218, 0.34);
  background: rgba(255, 255, 255, 0.72);
}

/* Footer */
.site-footer .container {
  font-size: 14px;
  color: var(--muted);
  text-align: center;
  padding: 12px 0;
}

/* Small screens */
@media (max-width: 860px) {
  main.container {
    grid-template-columns: 1fr;
  }
  .toc {
    position: static;
    order: -1;
  }

  main.company-main {
    padding: 18px 14px 36px;
  }

  .company-card {
    border-radius: 16px;
    padding: 22px 16px;
  }

  .company-header__inner {
    padding: 20px 14px 16px;
  }

  .company-table,
  .company-table tbody,
  .company-table tr,
  .company-table th,
  .company-table td {
    display: block;
    width: 100%;
  }

  .company-table {
    table-layout: auto;
  }

  .company-table th {
    border-bottom: none;
    white-space: normal;
    padding: 12px 14px 8px;
  }

  .company-table td {
    padding: 0 14px 14px;
    border-top: none;
  }

  .company-table tr + tr th {
    border-top: none;
  }
}