/* 色とフォント：この変数を変更するとページ全体に反映されます。 */
:root {
  --ink: #1b1e19;
  --muted: #60675b;
  --paper: #fafbf7;
  --lime: #c5fa53;
  --line: #d7ddcf;
  --mono: Consolas,'SFMono-Regular',monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 25px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Noto Sans JP','Yu Gothic','Hiragino Kaku Gothic ProN',sans-serif;
  font-size: 16px;
  line-height: 1.8;
}

a {
  color: inherit;
  text-underline-offset: 4px;
}

a: hover {
  color: #466d0c;
}

a: focus-visible {
  outline: 3px solid #598b10;
  outline-offset: 5px;
}

h1,h2,h3,p {
  margin: 0;
}

h1,h2,h3 {
  line-height: 1.4;
}

h1 {
  font-family: var(--mono);
  font-size: clamp(2rem,4vw,3rem);
  letter-spacing: -.05em;
}

h2 {
  font-size: 1.5rem;
}

h3 {
  font-size: 1.05rem;
}

p+p {
  margin-top: 12px;
}

.wrap {
  width: min(1100px,calc(100% - 64px));
  margin: auto;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  gap: 20px;
}

.brand {
  font: 700 1.05rem var(--mono);
  text-decoration: none;
  white-space: nowrap;
}

.brand b {
  background: var(--lime);
  padding: 3px 5px;
}

.header nav {
  display: flex;
  gap: 24px;
  font-size: .9rem;
}

.header nav a {
  text-decoration: none;
}

.overview {
  padding: 46px 0 32px;
}

.intro {
  font-size: 1.1rem;
  margin-top: 18px;
  max-width: 850px;
}

.supported {
  margin: 26px 0 0;
  font-size: .95rem;
}

.supported>div {
  display: flex;
  gap: 28px;
  margin-top: 9px;
}

.supported dt {
  color: var(--muted);
  width: 165px;
  flex-shrink: 0;
}

.supported dd {
  margin: 0;
  display: flex;
  gap: 10px 24px;
  flex-wrap: wrap;
}

.section {
  padding: 34px 0;
  border-top: 1px solid var(--line);
}

.connection {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.connection-copy h2 {
  margin-bottom: 18px;
}

.connection-copy>p {
  font-size: 1rem;
}

.note {
  font-size: .875rem;
  color: var(--muted);
  line-height: 1.75;
}

.connection-copy>.note {
  margin-top: 18px;
  font-size: .875rem;
}

.pin-info {
  margin: 0;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 22px 26px;
}

.pin-info figcaption {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  align-items: baseline;
}

.pin-info figcaption strong {
  font: 700 1.1rem var(--mono);
}

.pin-info figcaption span {
  font-size: .875rem;
  color: var(--muted);
}

.connector-schematic {
  display: block;
  width: 100%;
  max-width: 360px;
  height: auto;
  margin: 18px auto 12px;
}

.pin-info .note {
  margin-top: 12px;
}

.modules>h2 {
  margin-bottom: 24px;
}

.series-title {
  display: flex;
  gap: 20px;
  align-items: baseline;
  margin-bottom: 16px;
}

.series-title p {
  font-size: .95rem;
  color: var(--muted);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  border-left: 1px solid var(--line);
  border-top: 1px solid var(--line);
}

/* モジュールのカード：余白、図の大きさ、本文など */
.module-card {
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 20px;
  background: #fff;
  display: flex;
  flex-direction: column;
}

.drawing {
  height: 125px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 17px;
}

.drawing svg,.drawing img {
  width: 180px;
  height: 125px;
  color: var(--ink);
}

.module-card h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.description {
  font-size: .95rem;
  color: var(--muted);
  margin-bottom: 16px;
}

.card-links {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  font-size: .875rem;
}

.pending {
  color: var(--muted);
}

.pointing-title {
  margin: 28px 0 16px;
}

.pointing-grid {
  grid-template-columns: repeat(2,1fr);
}

.pointing-grid .module-card {
  display: grid;
  grid-template-columns: 150px 1fr;
  column-gap: 20px;
}

.pointing-grid .drawing {
  grid-row: 1/4;
  width: 150px;
  height: 130px;
  margin: 0;
}

.pointing-grid .drawing svg,
.pointing-grid .drawing img {
  width: 150px;
  height: 130px;
}

.pointing-grid .card-links {
  align-self: end;
}

.diagram-note {
  margin-top: 18px;
}

.footer {
  display: flex;
  gap: 28px;
  border-top: 1px solid var(--line);
  padding: 22px 0 30px;
  font-size: .9rem;
  color: var(--muted);
}

.skip {
  position: absolute;
  top: -100px;
  padding: 10px;
  background: var(--lime);
  z-index: 10;
}

.skip:focus {
  top: 5px;
}

/* タブレット表示 */
@media(max-width:800px) {
  .connection {
    gap: 28px;
  }

  .pointing-grid .module-card {
    display: flex;
  }

  .pointing-grid .drawing {
    width: 100%;
    height: 125px;
    margin-bottom: 17px;
  }

  .pin-info {
    padding: 20px;
  }

  .series-title {
    display: block;
  }

  .series-title p {
    margin-top: 6px;
  }

}

/* スマートフォン表示 */
@media(max-width:600px) {
  .wrap {
    width: calc(100% - 36px);
  }

  .header {
    padding: 18px 0;
    gap: 12px;
  }

  .header nav {
    gap: 14px;
    font-size: .875rem;
  }

  .brand {
    font-size: .95rem;
  }

  .overview {
    padding-top: 32px;
  }

  .intro {
    font-size: 1rem;
  }

  .supported>div {
    display: block;
    margin-top: 16px;
  }

  .supported dt {
    width: auto;
    margin-bottom: 5px;
  }

  .supported dd {
    gap: 6px 18px;
  }

  .connection {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .section {
    padding: 28px 0;
  }

  .pin-info {
    padding: 20px;
  }

  .card-grid,.pointing-grid {
    grid-template-columns: 1fr;
  }

  .module-card,.pointing-grid .module-card {
    display: grid;
    grid-template-columns: 100px 1fr;
    column-gap: 16px;
    padding: 18px;
  }

  .drawing,.pointing-grid .drawing {
    grid-row: 1/4;
    width: 100px;
    height: 110px;
    margin: 0;
  }

  .drawing svg,.pointing-grid .drawing svg,
.pointing-grid .drawing img {
    width: 100px;
    height: 110px;
  }

  .module-card h3 {
    font-size: 1rem;
  }

  .description {
    margin-bottom: 12px;
  }

  .card-links {
    gap: 6px 14px;
  }

  .footer {
    gap: 24px;
    flex-wrap: wrap;
  }

  .series-title p {
    font-size: .95rem;
  }

}

@media(prefers-reduced-motion:reduce) {
  html {
    scroll-behavior: auto;
  }

}

/* 印刷専用：A4縦1枚。通常の画面表示には影響しません。 */
@page {
  size: A4 portrait;
  margin: 12mm;
}

@media print {
  html {
    font-size: 12px;
  }

  body {
    background: #fff;
    color: #000;
    font-size: 9.5pt;
    line-height: 1.5;
  }

  .wrap {
    width: 100%;
    max-width: none;
    margin: 0;
  }

  .header, .skip {
    display: none;
  }

  h1 {
    font-size: 21pt;
  }

  h2 {
    font-size: 12pt;
  }

  h3 {
    font-size: 10pt;
  }

  a {
    color: #000;
    text-decoration-thickness: 0.5pt;
  }

  p + p {
    margin-top: 2mm;
  }

  .overview {
    padding: 0 0 4mm;
  }

  .intro {
    margin-top: 2mm;
    font-size: 10pt;
    max-width: none;
  }

  .supported {
    margin: 3mm 0 0;
    font-size: 9pt;
  }

  .supported > div {
    display: flex;
    gap: 3mm;
    margin-top: 1mm;
  }

  .supported dt {
    width: 35mm;
    margin: 0;
  }

  .supported dd {
    gap: 1mm 4mm;
  }

  .section {
    padding: 4mm 0;
    border-color: #aaa;
  }

  .connection {
    grid-template-columns: 1.25fr 0.75fr;
    gap: 6mm;
    break-inside: avoid;
  }

  .connection-copy h2 {
    margin-bottom: 2mm;
  }

  .connection-copy > p {
    font-size: 9.5pt;
  }

  .connection-copy > .note {
    margin-top: 2mm;
    font-size: 8.5pt;
  }

  .pin-info {
    padding: 2.5mm;
    border-color: #aaa;
  }

  .pin-info figcaption {
    display: block;
  }

  .pin-info figcaption strong {
    font-size: 9pt;
  }

  .pin-info figcaption span {
    display: block;
    font-size: 7.5pt;
  }

  .connector-schematic {
    width: 54mm;
    max-width: 100%;
    margin: 1mm auto;
  }

  .pin-info .note {
    margin-top: 1mm;
    font-size: 7.5pt;
    line-height: 1.45;
  }

  .modules > h2 {
    margin-bottom: 2mm;
  }

  .series-title {
    display: flex;
    align-items: baseline;
    gap: 3mm;
    margin-bottom: 2mm;
  }

  .series-title p {
    margin: 0;
    font-size: 8.5pt;
  }

  .card-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-color: #aaa;
  }

  .module-card {
    display: flex;
    padding: 2.5mm;
    border-color: #aaa;
    break-inside: avoid;
  }

  .drawing {
    width: 100%;
    height: 22mm;
    margin: 0 0 1mm;
  }

  .drawing svg, .drawing img {
    width: 32mm;
    height: 22mm;
  }

  .module-card h3 {
    font-size: 9.5pt;
    margin-bottom: 1mm;
  }

  .description {
    font-size: 9pt;
    margin-bottom: 2mm;
  }

  .card-links {
    font-size: 8pt;
    gap: 1mm 3mm;
  }

  .pointing-title {
    margin: 3mm 0 2mm;
  }

  .pointing-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pointing-grid .module-card {
    display: grid;
    grid-template-columns: 27mm 1fr;
    column-gap: 2.5mm;
  }

  .pointing-grid .drawing {
    width: 27mm;
    height: 25mm;
    grid-row: 1 / 4;
    margin: 0;
  }

  .pointing-grid .drawing svg, .pointing-grid .drawing img {
    width: 27mm;
    height: 25mm;
  }

  .diagram-note {
    margin-top: 2mm;
    font-size: 8pt;
  }

  .footer {
    padding: 2mm 0 0;
    gap: 5mm;
    border-color: #aaa;
    font-size: 8.5pt;
    break-inside: avoid;
  }

  .note, .description, .supported dt, .pending, .footer,
  .series-title p, .pin-info figcaption span {
    color: #333;
  }
}