/* はたらきゅ ─ 机の上の、理由がある物
   白基調・ライトのみ。方眼の上に、左寄せで置く。 */

:root {
  --paper:   #ffffff;
  --ground:  #fcfcfb;
  --grid:    #e9eef1;
  --ink:     #16181b;
  --ink-2:   #55595f;
  --ink-3:   #8b9097;
  --hair:    #e2e4e6;
  --hair-2:  #c9ccd0;
  --shu:     #cf4429;
  --shu-pale:#f6e3de;

  --mincho: "Hiragino Mincho ProN", "HiraMinProN-W3", "Yu Mincho", YuMincho, "MS PMincho", serif;
  --gothic: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", YuGothic, Meiryo, system-ui, sans-serif;
  --mono:   ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; color-scheme: light; }

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--gothic);
  font-size: 15.5px;
  line-height: 1.95;
  font-feature-settings: "palt" 1;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--ink); text-decoration-color: var(--hair-2); text-underline-offset: 0.25em; }
a:hover { text-decoration-color: var(--shu); }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--shu);
  outline-offset: 3px;
}

/* ══ 骨格 ══ */

.wrap { max-width: 58rem; margin: 0 auto; padding: 0 clamp(1.25rem, 5vw, 2.5rem); }
.col  { max-width: 37rem; }          /* 本文は左に寄せ、右に余白を残す */

.masthead { padding: 1.5rem 0 1.4rem; }
.masthead .wrap { display: flex; align-items: baseline; gap: 2rem; }
.brand {
  font-family: var(--mincho);
  font-size: 1.3rem;
  letter-spacing: 0.22em;
  text-decoration: none;
  color: var(--ink);
  white-space: nowrap;
}
.brand i { font-style: normal; color: var(--shu); }
.menu { margin-left: auto; display: flex; gap: 1.5rem; font-size: 0.78rem; letter-spacing: 0.1em; }
.menu a { color: var(--ink-2); text-decoration: none; }
.menu a:hover { color: var(--shu); }

.sheet { padding-bottom: 6rem; }

.colophon {
  border-top: 1px solid var(--hair);
  padding: 2.2rem 0 3.5rem;
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: var(--ink-3);
}
.colophon .wrap { display: flex; flex-wrap: wrap; gap: 0.5rem 1.6rem; }
.colophon a { color: var(--ink-2); text-decoration: none; }
.colophon a:hover { color: var(--shu); }
.colophon .mark { margin-left: auto; font-family: var(--mono); letter-spacing: 0; }

/* ══ 方眼のヒーロー ══ */

.hero {
  background-color: var(--paper);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 7mm 7mm;
  background-position: center top;
  border-bottom: 1px solid var(--hair);
}
.hero .wrap {
  display: flex;
  align-items: flex-end;
  gap: 3rem;
  padding-top: clamp(2.6rem, 7vw, 4.4rem);
  padding-bottom: clamp(2.6rem, 7vw, 4.4rem);
}

.ask {
  margin: 0;
  font-family: var(--mincho);
  font-weight: 400;
  color: var(--ink);
  font-size: clamp(1.75rem, 7.2vw, 2.2rem);
  line-height: 1.75;
  letter-spacing: 0.06em;
  text-wrap: balance;
}
.ask .q { color: var(--shu); }

.hero-side { flex: 1; max-width: 22rem; }
.hero-side p { margin: 0; font-size: 0.92rem; line-height: 2.1; color: var(--ink-2); }

@media (min-width: 54rem) {
  .hero .wrap { align-items: stretch; }
  .ask {
    writing-mode: vertical-rl;
    height: 16.5rem;
    font-size: 2.05rem;
    line-height: 2.05;
    letter-spacing: 0.16em;
    order: 2;
    margin-left: auto;
  }
  .hero-side { order: 1; align-self: flex-end; padding-bottom: 0.4rem; }
}

/* ══ 文字 ══ */

.title {
  margin: 0;
  font-family: var(--mincho);
  font-weight: 400;
  font-size: clamp(1.6rem, 5.4vw, 2rem);
  line-height: 1.7;
  letter-spacing: 0.06em;
  text-wrap: balance;
}
.sub {
  margin: 0;
  font-family: var(--mincho);
  font-weight: 400;
  font-size: 1.24rem;
  line-height: 1.85;
  letter-spacing: 0.05em;
  text-wrap: balance;
}
p { margin: 0; }
strong { font-weight: 700; }

.block { padding-top: clamp(2.8rem, 7vw, 4.2rem); }
.stack { display: flex; flex-direction: column; gap: 1.2rem; }
.tight { display: flex; flex-direction: column; gap: 0.55rem; }
.note  { font-size: 0.85rem; line-height: 2; color: var(--ink-2); }
.hr    { border: none; border-top: 1px solid var(--hair); margin: clamp(2.8rem,7vw,4.2rem) 0 0; }

/* 右余白に置く小さな数 */
.tally {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  padding: 1.1rem 0;
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
}
.tally b {
  font-family: var(--mincho);
  font-weight: 400;
  font-size: 2.2rem;
  line-height: 1.15;
  color: var(--shu);
  font-variant-numeric: tabular-nums;
}
.tally span { font-size: 0.85rem; color: var(--ink-2); line-height: 1.8; }

/* 三つの手順 ─ 枠を使わず、数字を外に出す */
.rules { display: flex; flex-direction: column; gap: 1.7rem; }
.rule-i { display: grid; grid-template-columns: 2.2rem 1fr; gap: 0 0.6rem; }
.rule-i > .n {
  font-family: var(--mincho);
  font-size: 1.05rem;
  color: var(--shu);
  line-height: 1.9;
  letter-spacing: 0.05em;
}
.rule-i > .t { font-weight: 700; line-height: 1.9; }
.rule-i > .d { grid-column: 2; font-size: 0.87rem; color: var(--ink-2); line-height: 2; margin-top: 0.15rem; }

/* 箇条書き */
.items { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 0.7rem; }
.items li { padding-left: 1.15rem; position: relative; font-size: 0.94rem; line-height: 1.95; }
.items li::before {
  content: "";
  position: absolute;
  left: 0.05rem; top: 0.92em;
  width: 0.42rem; height: 1px;
  background: var(--hair-2);
}

/* 引き締めた注意書き */
.caution {
  border-left: 2px solid var(--shu);
  padding: 0.1rem 0 0.1rem 1.1rem;
  display: flex; flex-direction: column; gap: 0.6rem;
  font-size: 0.87rem; line-height: 2;
  color: var(--ink-2);
}

/* 行動 */
.go {
  display: inline-block;
  background: var(--shu);
  color: #fff;
  font-family: var(--gothic);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  padding: 0.9rem 2.2rem;
  border: none;
  border-radius: 0;
  text-decoration: none;
  cursor: pointer;
  line-height: 1.6;
}
.go:hover { background: #b93a22; }
.go-row { padding-top: 0.4rem; }

/* 読みものの見出しリンク */
.piece { display: block; text-decoration: none; padding: 1.3rem 0; border-top: 1px solid var(--hair); }
.piece:last-of-type { border-bottom: 1px solid var(--hair); }
.piece .t { font-family: var(--mincho); font-size: 1.16rem; line-height: 1.7; letter-spacing: 0.03em; display: block; }
.piece .d { display: block; font-size: 0.84rem; color: var(--ink-2); line-height: 1.9; margin-top: 0.3rem; }
.piece:hover .t { color: var(--shu); }

/* ══ 読み物 ══ */

.essay { display: flex; flex-direction: column; gap: 1.6rem; }
.essay > p { font-size: 1rem; line-height: 2.15; }
.essay h2 {
  margin: 1.4rem 0 -0.4rem;
  font-family: var(--mincho);
  font-weight: 400;
  font-size: 1.28rem;
  line-height: 1.8;
  letter-spacing: 0.05em;
}
.by { font-size: 0.75rem; letter-spacing: 0.14em; color: var(--ink-3); }

/* ══ フォーム ══ */

.form { display: flex; flex-direction: column; gap: 2.1rem; }
.f { display: flex; flex-direction: column; gap: 0.5rem; }
.f > label, .f legend { font-weight: 700; font-size: 0.92rem; letter-spacing: 0.04em; padding: 0; }
.f .say { font-size: 0.82rem; color: var(--ink-2); line-height: 1.95; }
.f input[type="text"], .f textarea {
  font-family: inherit; font-size: 1rem; color: var(--ink);
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--hair-2);
  background: var(--paper);
  border-radius: 0;
  width: 100%;
}
.f input[type="file"] {
  font-family: inherit; font-size: 0.9rem;
  padding: 0.7rem 0; width: 100%;
}
.f textarea { resize: vertical; min-height: 5.5rem; line-height: 1.9; }
.f input[type="text"]:focus, .f textarea:focus { border-color: var(--shu); }

fieldset.f { border: none; margin: 0; padding: 0; }
.pick { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.2rem; }
.pick label {
  border: 1px solid var(--hair-2);
  background: var(--paper);
  padding: 0.45rem 1rem;
  cursor: pointer;
  font-size: 0.9rem;
  display: inline-flex; align-items: center; gap: 0.45rem;
}
.pick input { accent-color: var(--shu); margin: 0; }
.pick label:has(input:checked) { border-color: var(--shu); color: var(--shu); font-weight: 700; }

.ok-line { display: flex; gap: 0.65rem; align-items: flex-start; font-size: 0.87rem; line-height: 2; color: var(--ink-2); }
.ok-line input { accent-color: var(--shu); margin-top: 0.5rem; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.alert {
  border-left: 2px solid var(--shu);
  background: var(--shu-pale);
  padding: 0.85rem 1.1rem;
  font-size: 0.88rem; line-height: 1.95;
  display: flex; flex-direction: column; gap: 0.3rem;
}

@media (max-width: 34rem) {
  .masthead .wrap { flex-wrap: wrap; gap: 0.7rem 1.2rem; }
  .menu { margin-left: 0; width: 100%; gap: 1.2rem; }
  .hero .wrap { flex-direction: column; align-items: flex-start; gap: 1.6rem; }
}

/* ══ みんなの机 ══ */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(13.5rem, 1fr));
  gap: 2rem 1.6rem;
}
.tile { display: flex; flex-direction: column; gap: 0.6rem; text-decoration: none; color: var(--ink); }
.tile-ph {
  display: block;
  aspect-ratio: 1;
  background: var(--paper);
  border: 1px solid var(--hair);
  overflow: hidden;
}
.tile-ph img { width: 100%; height: 100%; object-fit: cover; }
.tile-riyu {
  font-family: var(--mincho);
  font-size: 1rem;
  line-height: 1.75;
  letter-spacing: 0.02em;
}
.tile-meta { font-size: 0.74rem; letter-spacing: 0.06em; color: var(--ink-3); }
.tile:hover .tile-ph { border-color: var(--shu); }
.tile:hover .tile-riyu { color: var(--shu); }

/* 1個のページ */
.one { display: flex; flex-direction: column; gap: 1.8rem; }
.one-ph { margin: 0; max-width: 34rem; background: var(--paper); border: 1px solid var(--hair); }
.one-ph img { width: 100%; height: auto; max-height: 36rem; object-fit: contain; }
.one-riyu {
  font-family: var(--mincho);
  font-size: clamp(1.3rem, 4.4vw, 1.7rem);
  line-height: 1.8;
  letter-spacing: 0.04em;
  text-wrap: balance;
}
.one-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; margin-top: 1rem; }
.one-meta .who { font-size: 0.78rem; letter-spacing: 0.08em; color: var(--ink-3); margin-left: 0.3rem; }
.one-body { display: flex; flex-direction: column; }

/* しるし */
.chip {
  display: inline-block;
  border: 1px solid var(--hair-2);
  padding: 0.2rem 0.75rem;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  color: var(--ink-2);
  background: var(--paper);
}
.chip:hover { border-color: var(--shu); color: var(--shu); }
.chip.on { border-color: var(--shu); color: var(--shu); font-weight: 700; }

/* 絞り込み */
.sift { display: flex; flex-direction: column; gap: 0.7rem; }
.sift-row { display: flex; flex-wrap: wrap; align-items: center; gap: 0.45rem; }
.sift-l {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--ink-3);
  width: 4.6rem;
  flex-shrink: 0;
}

/* 前後 */
.pager { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; font-size: 0.84rem; }
.pager a { color: var(--ink-2); text-decoration: none; }
.pager a:hover { color: var(--shu); }

@media (max-width: 34rem) {
  .grid { grid-template-columns: repeat(auto-fill, minmax(9.5rem, 1fr)); gap: 1.5rem 1rem; }
  .tile-riyu { font-size: 0.92rem; }
  .sift-l { width: 100%; }
}