@charset "utf-8";

/* ============================================================
   studio m's ｜ Blog Archive
   撮影レポートの保管庫。写真が主役、探しやすさが第一。
   ============================================================ */

:root {
  --paper:      #fbfaf7;
  --paper-warm: #f2efe9;
  --ink:        #2a2724;
  --ink-soft:   #736c64;
  --ink-faint:  #9a938a;
  --line:       #e3ddd4;
  --line-soft:  #efeae2;
  --white:      #ffffff;
  --accent:     #8c7f70;

  --latin: "Cormorant Garamond", "Times New Roman", serif;
  --sans: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic Medium",
          YuGothic, "Noto Sans JP", sans-serif;

  --side: 15rem;
  --pad: clamp(1rem, 4vw, 2.5rem);
  --head-h: 3.5rem;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 400;
  font-size: 0.95rem;
  line-height: 1.9;
  letter-spacing: 0.04em;
  font-feature-settings: "palt" 1;
  text-underline-offset: 0.25em;
  overflow-wrap: anywhere;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { margin: 0; font-weight: 400; }
p { margin: 0; }
button { font: inherit; color: inherit; }

.latin {
  font-family: var(--latin);
  font-weight: 300;
  text-transform: uppercase;
  letter-spacing: 0.3em;
}

.skip {
  position: absolute; left: -9999px;
  background: var(--ink); color: var(--paper); padding: .6rem 1rem; z-index: 100;
}
.skip:focus { left: .5rem; top: .5rem; }

/* ---------- ヘッダー ---------- */

.head {
  position: sticky; top: 0; z-index: 50;
  height: var(--head-h);
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem;
  padding-inline: var(--pad);
  background: rgba(251, 250, 247, .94);
  backdrop-filter: saturate(150%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.head__brand {
  font-family: var(--latin); font-weight: 300;
  font-size: 1.05rem; letter-spacing: .22em; text-transform: uppercase;
  white-space: nowrap;
}
.head__brand span {
  display: block; font-family: var(--sans);
  font-size: .58rem; letter-spacing: .3em; color: var(--ink-faint);
  margin-top: -.35rem;
}
.head__nav {
  display: flex; gap: clamp(.7rem, 3vw, 1.6rem);
  font-size: .72rem; letter-spacing: .12em; color: var(--ink-soft);
  white-space: nowrap;
}
.head__nav a:hover { color: var(--ink); }

/* ---------- レイアウト ---------- */

.shell {
  display: grid;
  grid-template-columns: var(--side) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  max-width: 68rem;
  margin-inline: auto;
  padding: clamp(1.25rem, 4vw, 2.75rem) var(--pad) 5rem;
  align-items: start;
}

.side { position: sticky; top: calc(var(--head-h) + 1.25rem); }

/* ---------- 検索 ---------- */

.search { position: relative; margin-bottom: 1.75rem; }
.search input {
  width: 100%;
  font: inherit; font-size: .9rem;
  padding: .65rem 2.2rem .65rem .85rem;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--white);
  color: var(--ink);
  -webkit-appearance: none; appearance: none;
}
.search input:focus { outline: none; border-color: var(--accent); }
.search input::placeholder { color: var(--ink-faint); }
.search__clear {
  position: absolute; right: .35rem; top: 50%; transform: translateY(-50%);
  width: 1.7rem; height: 1.7rem; line-height: 1;
  border: 0; background: none; color: var(--ink-faint);
  cursor: pointer; font-size: 1.05rem; display: none;
}
.search.has-value .search__clear { display: block; }

/* ---------- サイドの見出し ---------- */

.side h2 {
  font-size: .68rem; letter-spacing: .2em; color: var(--ink-faint);
  padding-bottom: .5rem; margin-bottom: .6rem;
  border-bottom: 1px solid var(--line);
}
.side__block + .side__block { margin-top: 2rem; }

/* ---------- 年月アーカイブ ---------- */

.arc { list-style: none; margin: 0; padding: 0; font-size: .85rem; }
.arc__y > button {
  display: flex; align-items: center; gap: .45rem;
  width: 100%; padding: .3rem 0;
  border: 0; background: none; cursor: pointer;
  text-align: left; letter-spacing: .08em;
}
.arc__y > button::before {
  content: "＋"; font-size: .6rem; color: var(--ink-faint);
  width: .8rem; flex: none;
}
.arc__y.is-open > button::before { content: "−"; }
.arc__y > button b { font-weight: 400; }
.arc__y > button i { font-style: normal; color: var(--ink-faint); font-size: .72rem; }
.arc__m { list-style: none; margin: 0 0 .5rem; padding: 0 0 0 1.25rem; display: none; }
.arc__y.is-open .arc__m { display: block; }
.arc__m a {
  display: flex; justify-content: space-between; gap: .5rem;
  padding: .22rem 0; color: var(--ink-soft); font-size: .82rem;
}
.arc__m a:hover, .arc__m a.is-on { color: var(--ink); }
.arc__m a.is-on { font-weight: 500; }
.arc__m span { color: var(--ink-faint); font-size: .72rem; }

/* ---------- カテゴリ ---------- */

.cats { display: flex; flex-wrap: wrap; gap: .4rem; }
.cats a {
  display: inline-block;
  padding: .28rem .7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: .76rem; letter-spacing: .04em;
  color: var(--ink-soft);
  background: var(--white);
}
.cats a:hover { border-color: var(--accent); color: var(--ink); }
.cats a.is-on { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.cats a i { font-style: normal; opacity: .55; font-size: .68rem; margin-left: .25rem; }

/* ---------- モバイルの絞り込み ---------- */

.mfilter { display: none; }

/* ---------- 一覧 ---------- */

.listhead {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap;
  padding-bottom: .8rem; margin-bottom: .35rem;
  border-bottom: 1px solid var(--line);
}
.listhead h1 { font-size: 1.05rem; letter-spacing: .08em; }
.listhead p { font-size: .74rem; color: var(--ink-faint); letter-spacing: .06em; }
.listhead button {
  border: 0; background: none; cursor: pointer;
  font-size: .74rem; color: var(--accent); text-decoration: underline;
}

.list { list-style: none; margin: 0; padding: 0; }
.list li { border-bottom: 1px solid var(--line-soft); }
.list a {
  display: grid;
  grid-template-columns: 6.5rem minmax(0, 1fr);
  gap: 1rem;
  padding: 1rem .25rem;
  align-items: start;
}
.list a:hover { background: var(--paper-warm); }
.list a.notb { grid-template-columns: minmax(0, 1fr); }
.list a.notb .thumb { display: none; }
.list .thumb {
  aspect-ratio: 1 / 1; background: var(--paper-warm);
  overflow: hidden; border-radius: 2px;
}
.list .thumb img { width: 100%; height: 100%; object-fit: cover; }
.list .meta {
  font-size: .7rem; letter-spacing: .1em; color: var(--ink-faint);
  font-family: var(--latin); font-weight: 400;
}
.list h3 {
  font-size: .95rem; line-height: 1.6; margin: .15rem 0 .3rem;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.list p {
  font-size: .78rem; line-height: 1.75; color: var(--ink-soft);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.list .tags {
  display: flex; flex-wrap: wrap; gap: .3rem; margin-top: .45rem;
}
.list .tags span {
  font-size: .66rem; letter-spacing: .04em; color: var(--ink-faint);
  border: 1px solid var(--line); border-radius: 999px; padding: .1rem .5rem;
  background: var(--white);
}
mark { background: #f4e9c9; color: inherit; padding: 0 .1em; }

.more {
  display: block; width: 100%; margin-top: 2rem;
  padding: .85rem; border: 1px solid var(--line); background: var(--white);
  border-radius: 2px; cursor: pointer;
  font-size: .8rem; letter-spacing: .12em; color: var(--ink-soft);
}
.more:hover { border-color: var(--accent); color: var(--ink); }
.empty { padding: 3rem .25rem; color: var(--ink-soft); font-size: .85rem; }

/* ---------- 記事ページ ---------- */

.post { max-width: 44rem; margin-inline: auto; padding: clamp(1.5rem, 5vw, 3rem) var(--pad) 4rem; }
.post__back {
  font-size: .74rem; letter-spacing: .1em; color: var(--ink-soft);
  display: inline-block; margin-bottom: 1.75rem;
}
.post__back:hover { color: var(--ink); }
.post__date { font-family: var(--latin); font-size: .8rem; letter-spacing: .16em; color: var(--ink-faint); }
.post__title {
  font-size: clamp(1.25rem, 1.05rem + 1vw, 1.6rem);
  line-height: 1.65; letter-spacing: .04em;
  margin: .5rem 0 .9rem;
}
.post__tags { display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: 2.25rem; }
.post__tags a {
  font-size: .74rem; color: var(--ink-soft);
  border: 1px solid var(--line); border-radius: 999px; padding: .2rem .7rem;
  background: var(--white);
}
.post__tags a:hover { border-color: var(--accent); color: var(--ink); }

.post__body > * + * { margin-top: 1.35rem; }
.post__body p { line-height: 2.05; }
.post__body h2 { font-size: 1.05rem; letter-spacing: .06em; margin-top: 2.5rem; }
.post__body figure { margin: 2rem 0; }
.post__body img { width: 100%; border-radius: 2px; background: var(--paper-warm); }

.post__nav {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1rem;
  margin-top: 3.5rem; padding-top: 1.5rem; border-top: 1px solid var(--line);
  font-size: .78rem;
}
.post__nav a { color: var(--ink-soft); line-height: 1.7; }
.post__nav a:hover { color: var(--ink); }
.post__nav .nxt { text-align: right; }
.post__nav small {
  display: block; font-family: var(--latin); letter-spacing: .16em;
  font-size: .68rem; color: var(--ink-faint); margin-bottom: .2rem;
}

.foot {
  border-top: 1px solid var(--line);
  padding: 2.5rem var(--pad) 3.5rem;
  text-align: center;
  font-size: .72rem; letter-spacing: .1em; color: var(--ink-faint);
}
.foot a { color: var(--ink-soft); }
.foot nav { display: flex; flex-wrap: wrap; gap: 1.25rem; justify-content: center; margin-bottom: 1rem; }

/* ============================================================
   スマートフォン
   ============================================================ */

@media (max-width: 860px) {
  .shell {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
    padding-top: 1rem;
  }

  .side { position: static; }
  .side__block { display: none; }          /* PC用の縦並びは隠す */

  .mfilter { display: block; margin-bottom: 1.25rem; }
  .mfilter__row { display: grid; grid-template-columns: 1fr 1fr; gap: .5rem; }
  .mfilter__row button {
    display: flex; align-items: center; justify-content: center; gap: .4rem;
    padding: .6rem .5rem;
    border: 1px solid var(--line); background: var(--white);
    border-radius: 2px; cursor: pointer;
    font-size: .8rem; letter-spacing: .06em; color: var(--ink-soft);
  }
  .mfilter__row button[aria-expanded="true"] {
    border-color: var(--accent); color: var(--ink); background: var(--paper-warm);
  }
  .mfilter__row button::after { content: "▾"; font-size: .65rem; }
  .mfilter__row button[aria-expanded="true"]::after { content: "▴"; }

  .mpanel {
    display: none;
    margin-top: .5rem; padding: .9rem;
    border: 1px solid var(--line); border-radius: 2px; background: var(--white);
    max-height: 62vh; overflow-y: auto; -webkit-overflow-scrolling: touch;
  }
  .mpanel.is-open { display: block; }
  .mpanel .arc__y > button { padding: .5rem 0; }
  .mpanel .arc__m {
    display: none;
    grid-template-columns: repeat(3, 1fr);
    gap: 0 .9rem;
    padding-left: 1.25rem;
  }
  .mpanel .arc__y.is-open .arc__m { display: grid; }
  .mpanel .arc__m a { padding: .35rem 0; justify-content: flex-start; gap: .35rem; }

  .head__nav a:not(.keep) { display: none; }

  .list a { grid-template-columns: 5rem minmax(0, 1fr); gap: .85rem; padding: .9rem .1rem; }
  .list h3 { font-size: .9rem; }
  .list p { display: none; }
  .list .tags { margin-top: .35rem; }

  .post__nav { grid-template-columns: 1fr; gap: 1.25rem; }
  .post__nav .nxt { text-align: left; }
}

@media (min-width: 861px) {
  .mfilter { display: none !important; }
}