/* KETTLEBELLKON Manuals — shared styles
   Mobile-first, monochrome, no external dependencies. */

:root {
  --color-text: #111;
  --color-muted: #555;
  --color-border: #d4d4d4;
  --color-bg: #fff;
  --color-surface: #f5f5f5;
  --color-notice-bg: #fff8e1;
  --color-notice-border: #111;
  --color-focus: #0b57d0;
  --radius: 4px;
  --max-width: 40rem;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans",
    "Hiragino Kaku Gothic ProN", "Noto Sans JP", Meiryo, sans-serif;
}

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

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--color-text);
  background: var(--color-bg);
}

a {
  color: inherit;
  text-underline-offset: 0.2em;
}

a:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: 0.5rem 1rem;
  background: var(--color-text);
  color: var(--color-bg);
}

.skip-link:focus {
  left: 0;
  z-index: 10;
}

/* Layout */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.site-header {
  border-bottom: 2px solid var(--color-text);
}

.site-header .container {
  display: flex;
  align-items: center;
  min-height: 3.25rem;
}

.brand {
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.18em;
  text-decoration: none;
}

main {
  padding: 1.5rem 0 3rem;
}

/* Breadcrumb */

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  margin: 0 0 1.25rem;
  padding: 0;
  list-style: none;
  font-size: 0.8125rem;
  color: var(--color-muted);
}

.breadcrumb li + li::before {
  content: "/";
  margin-right: 0.25rem;
}

.breadcrumb [aria-current="page"] {
  color: var(--color-text);
}

/* Headings */

.page-title {
  margin: 0 0 1.5rem;
}

.page-title .eyebrow {
  display: block;
  margin-bottom: 0.25rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--color-muted);
}

.page-title h1 {
  margin: 0;
  font-size: 1.5rem;
  line-height: 1.4;
}

.page-title .subtitle {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--color-muted);
}

h2 {
  margin: 2rem 0 0.75rem;
  padding-bottom: 0.25rem;
  font-size: 1.125rem;
  line-height: 1.5;
  border-bottom: 1px solid var(--color-border);
}

h2 .en {
  margin-left: 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-muted);
}

p {
  margin: 0 0 1rem;
}

/* Provisional notice */

.notice {
  margin: 0 0 1.75rem;
  padding: 1rem 1.125rem;
  background: var(--color-notice-bg);
  border: 2px solid var(--color-notice-border);
  border-radius: var(--radius);
}

.notice .notice-label {
  display: inline-block;
  margin-bottom: 0.5rem;
  padding: 0.125rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-bg);
  background: var(--color-text);
}

.notice p {
  margin: 0;
}

.notice p + p {
  margin-top: 0.5rem;
}

.notice .en {
  font-size: 0.8125rem;
  color: var(--color-muted);
}

/* Placeholder content block */

.placeholder {
  padding: 1rem 1.125rem;
  background: var(--color-surface);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius);
  color: var(--color-muted);
}

.placeholder p {
  margin: 0;
}

/* Cards */

.card-list {
  display: grid;
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.card {
  display: block;
  padding: 1rem 2.5rem 1rem 1.125rem;
  position: relative;
  text-decoration: none;
  border: 1px solid var(--color-text);
  border-radius: var(--radius);
  background: var(--color-bg);
}

.card::after {
  content: "\2192";
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.125rem;
}

.card:hover {
  background: var(--color-surface);
}

.card-title {
  display: block;
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.5;
}

.card-sub {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-muted);
}

.card-desc {
  display: block;
  margin-top: 0.375rem;
  font-size: 0.875rem;
  color: var(--color-muted);
}

.tag {
  display: inline-block;
  margin-top: 0.5rem;
  padding: 0 0.375rem;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  border: 1px solid var(--color-text);
}

/* Pager / back links */

.page-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: 2.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.875rem;
}

/* Footer */

.site-footer {
  padding: 1.5rem 0 2rem;
  border-top: 2px solid var(--color-text);
  font-size: 0.75rem;
  color: var(--color-muted);
}

.site-footer p {
  margin: 0;
}

.site-footer .footer-brand {
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--color-text);
}

/* Larger screens */

@media (min-width: 40em) {
  body {
    font-size: 1.0625rem;
  }

  .page-title h1 {
    font-size: 1.875rem;
  }

  main {
    padding-top: 2.5rem;
  }
}

@media print {
  .skip-link,
  .breadcrumb,
  .page-nav {
    display: none;
  }

  .card::after {
    content: none;
  }

  a {
    text-decoration: none;
  }
}