@charset "UTF-8";
/* つくったもの一覧（ポータル）
   いろ・かたち・書体は、各ツールの紹介ページ（assets/site.css）と そろえています。 */

:root {
  --amber:      #d08a26;
  --amber-dark: #b2731a;
  --ink:        #16202f;
  --navy:       #1d2b45;
  --body:       #4e5665;
  --muted:      #858c98;
  --paper:      #fbfaf8;
  --cream:      #f1efe9;
  --line:       #e4e1da;
  --white:      #ffffff;
  --radius:     20px;
  --wrap:       1120px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--body);
  font-family: Inter, "Noto Sans JP", "Yu Gothic", Meiryo, sans-serif;
  font-size: 16px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 20px;
  color: var(--amber-dark);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .17em;
}

.eyebrow::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: var(--line);
}

/* ========== みだし ========== */
.hero {
  background: var(--ink);
  color: var(--cream);
  padding: 72px 0 64px;
}

.hero .eyebrow { color: var(--amber); }
.hero .eyebrow::after { background: #2a3448; }

.hero h1 {
  margin: 0;
  color: var(--white);
  font-size: clamp(30px, 6vw, 52px);
  line-height: 1.3;
  letter-spacing: -.01em;
}

.lead {
  max-width: 34em;
  margin: 18px 0 0;
  color: #b9c0cc;
  font-size: clamp(15px, 2.4vw, 18px);
}

/* ========== グループ ========== */
.group { padding: 64px 0; }
.group--alt { background: var(--cream); }

.sec-head { margin-bottom: 28px; }

.sec-head h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(24px, 4.4vw, 34px);
  line-height: 1.4;
}

/* ========== カード ========== */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 18px;
}

.card {
  display: flex;
  gap: 18px;
  padding: 22px 20px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--body);
  text-decoration: none;
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}

.card:hover,
.card:focus-visible {
  transform: translateY(-2px);
  border-color: #d8d3c8;
  box-shadow: 0 12px 28px #16202f14;
}

.card:focus-visible { outline: 3px solid var(--amber); outline-offset: 3px; }

.card__icon {
  flex: 0 0 auto;
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: var(--cream);
  object-fit: cover;
}

.card__body { min-width: 0; }

.card h3 {
  margin: 2px 0 6px;
  color: var(--ink);
  font-size: 20px;
  line-height: 1.4;
}

.card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
}

.card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px !important;
}

.tag {
  padding: 3px 10px;
  background: var(--cream);
  border-radius: 999px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .02em;
}

/* ========== あしもと ========== */
.foot {
  padding: 48px 0 56px;
  background: var(--ink);
  color: #9aa3b2;
  text-align: center;
}

.foot p { margin: 0; }
.foot__note { font-size: 14px; }
.foot__disclosure {
  margin: 20px auto 0;
  font-size: 13px;
  line-height: 1.9;
  color: #8b95a6;
}

.foot__counter {
  margin-top: 14px;
  font-size: 13px;
  color: #8b95a6;
  font-variant-numeric: tabular-nums;
}

.foot__counter b { font-weight: 600; color: #b8c1d1; }

.foot__link {
  display: inline-block;
  margin-top: 10px;
  color: var(--amber);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  padding: 10px 4px;            /* 指で ふれやすい たかさ */
}

.foot__link:hover { text-decoration: underline; }

/* ========== ちいさい 画面 ========== */
@media (max-width: 560px) {
  .hero { padding: 48px 0 44px; }
  .group { padding: 44px 0; }
  .grid { grid-template-columns: 1fr; }
  .card { padding: 18px 16px; gap: 14px; }
  .card__icon { width: 56px; height: 56px; border-radius: 14px; }
  .card h3 { font-size: 19px; }
}

@media (prefers-reduced-motion: reduce) {
  .card { transition: none; }
  .card:hover, .card:focus-visible { transform: none; }
}


/* ========== 開発の参考書 ========== */
.books {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 18px;
}

.book-group {
  padding: 22px 20px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.book-group h3 {
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--line);
  color: var(--ink);
  font-size: 17px;
}

.book-group ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.book-group li + li {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.book-group li > a {
  display: inline-block;
  padding: 2px 0;
  color: var(--amber-dark);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  text-decoration: none;
}

.book-group li > a:hover { text-decoration: underline; }

.book__meta,
.book__note {
  display: block;
  font-size: 13.5px;
  line-height: 1.7;
}

.book__meta { color: var(--muted); }
.book__note { margin-top: 2px; }

.book-more {
  margin: 16px 0 0;
  font-size: 13.5px;
}

.book-more a {
  display: inline-block;
  padding: 8px 0;               /* 指で ふれやすい たかさ */
  color: var(--amber-dark);
  text-decoration: none;
}

.book-more a:hover { text-decoration: underline; }

.books__note {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.8;
}