/* やよい ポートフォリオ 共通トークン
   影は使わない。構造は1pxの線と余白でつくる。
   外部Webフォントは読み込まない（ローカルの明朝／標準UIゴシックのみ）。 */

:where(*, *::before, *::after) { box-sizing: border-box; }
:where(body, h1, h2, h3, h4, p, ul, ol, li, figure, blockquote, dl, dd) { margin: 0; padding: 0; }
:where(ul, ol) { list-style: none; }
:where(img) { max-width: 100%; display: block; }
:where(a:not([class])) { color: inherit; }

:root {
  --c-bg:    #FFFFFF;
  --c-sand:  #FAF7F2;
  --c-ink:   #2A241F;
  --c-body:  #4E453D;
  --c-muted: #8E8379;
  --c-key:   #8C6A55;
  --c-sub:   #C9A99A;
  --c-line:  #E9E1D7;

  --ff: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", "Yu Gothic", Meiryo, sans-serif;
  --ff-min: "Hiragino Mincho ProN", "Hiragino Mincho Pro", "Yu Mincho", "YuMincho", "Noto Serif JP", serif;
  --ff-head: var(--ff-min);

  --fs-display: clamp(28px, 4.1vw, 54px);
  --fs-h1:      clamp(24px, 3.1vw, 38px);
  --fs-h2:      clamp(20px, 2.4vw, 29px);
  --fs-h3:      clamp(17px, 1.6vw, 20px);
  --fs-lead:    clamp(16px, 1.4vw, 18px);
  --fs-body:    17px;
  --fs-note:    14px;
  --fs-micro:   11px;

  --container: 1200px;
  --gutter: 28px;
  --sec: clamp(80px, 11vw, 160px);
}

body {
  margin: 0; background: var(--c-bg); color: var(--c-body);
  font-family: var(--ff); font-size: var(--fs-body); line-height: 1.95;
  -webkit-font-smoothing: antialiased;
}

.wrap { width: min(100% - (var(--gutter) * 2), var(--container)); margin-inline: auto; }

.head-f {
  font-family: var(--ff-head);
  font-weight: 400;
  letter-spacing: .055em;
  color: var(--c-ink);
}

.micro {
  font-size: var(--fs-micro); letter-spacing: .3em; text-transform: uppercase;
  color: var(--c-muted); font-weight: 500;
}

.rule { height: 1px; background: var(--c-line); border: 0; }

.link-cta {
  display: inline-flex; align-items: center; gap: .8em;
  font-size: var(--fs-note); font-weight: 600; letter-spacing: .14em;
  color: var(--c-key); text-decoration: none;
  padding-bottom: 7px; border-bottom: 1px solid var(--c-sub);
  transition: gap .25s ease, border-color .25s ease;
}
.link-cta:hover { gap: 1.4em; border-color: var(--c-key); }
.link-cta .arw { font-size: 1em; line-height: 1; }

/* ヘッダー：全ページ共通 */
.site-head {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 50;
  background: rgba(255,255,255,.94);
  backdrop-filter: saturate(120%) blur(6px);
}
.site-head__in {
  width: min(100% - (var(--gutter) * 2), var(--container));
  margin-inline: auto; height: 74px;
  display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid var(--c-line);
}
.site-head__logo {
  font-family: var(--ff-head); font-weight: 400;
  font-size: 17px; letter-spacing: .3em; color: var(--c-ink); text-decoration: none;
}
.site-head__nav { display: flex; align-items: center; gap: 28px; }
.site-head__nav a {
  font-size: 11px; font-weight: 600; letter-spacing: .22em;
  color: var(--c-muted); text-decoration: none;
}
.site-head__nav a:hover { color: var(--c-key); }

/* フッター：全ページ共通 */
.site-foot { padding-block: clamp(36px, 5vw, 58px); }
.site-foot__in {
  display: flex; align-items: center; justify-content: space-between;
  gap: 18px; flex-wrap: wrap;
  border-top: 1px solid var(--c-line); padding-top: clamp(22px, 3vw, 32px);
}
.site-foot__logo { font-family: var(--ff-head); font-weight: 400; font-size: 15px; letter-spacing: .28em; color: var(--c-ink); }
.site-foot__nav { display: flex; gap: 22px; flex-wrap: wrap; }
.site-foot__nav a { font-size: var(--fs-micro); letter-spacing: .2em; color: var(--c-muted); text-decoration: none; text-transform: uppercase; }
.site-foot__nav a:hover { color: var(--c-key); }
.site-foot__copy { font-size: var(--fs-micro); letter-spacing: .08em; color: var(--c-muted); }

@media (max-width: 720px) {
  :root { --gutter: 20px; }
  .site-head__in { height: 60px; }
  .site-head__logo { font-size: 15px; letter-spacing: .2em; }
  .site-head__nav { gap: 15px; }
  .site-head__nav a { letter-spacing: .1em; }
  .site-head__nav a.is-hide-sp { display: none; }
}
@media (max-width: 400px) {
  .site-head__nav { gap: 12px; }
  .site-head__nav a { font-size: 10px; letter-spacing: .06em; }
}