/* 土佐和紙商店 ── プロトタイプ (doc/design) のトーンを移植 */
:root {
  --bg: #ece9e2;
  --paper: #fdfcfa;
  --ink: #211e19;
  --ink-2: #4a463e;
  --ink-3: #6f6a5e;
  --ink-4: #8d8677;
  --line: rgba(33, 30, 25, 0.12);
  --line-2: rgba(33, 30, 25, 0.28);
  --ph: #eae5da;
  --ph-fg: #a39a86;
  --warn: #8a4a1f;
  --err: #9c3c2e;
  --ok: #3f7a4e;
  --tint: #f4f1ea;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  font-family: -apple-system, BlinkMacSystemFont, 'Hiragino Kaku Gothic ProN', 'Noto Sans JP',
    'Yu Gothic', Meiryo, sans-serif;
  color: var(--ink);
}

a {
  color: var(--ink);
}
a:hover {
  color: var(--ink-3);
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.serif {
  font-family: 'Hiragino Mincho ProN', 'Yu Mincho', 'Noto Serif JP', serif;
}

.app {
  max-width: 1160px;
  margin: 0 auto;
  min-height: 100vh;
  background: var(--paper);
  box-shadow: 0 0 40px rgba(33, 30, 25, 0.08);
  display: flex;
  flex-direction: column;
}

/* ---- header / footer ---- */
.shd {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 30px;
  border-bottom: 1px solid var(--line);
  gap: 12px;
  flex-wrap: wrap;
}
.snav {
  display: flex;
  gap: 20px;
  font-size: 11.5px;
  letter-spacing: 0.06em;
  flex-wrap: wrap;
}
.snav a {
  text-decoration: none;
  cursor: pointer;
}
.sfoot {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 22px 30px;
  border-top: 1px solid var(--line);
  font-size: 10.5px;
  color: var(--ink-4);
  margin-top: auto;
}
.sfoot a {
  color: var(--ink-4);
  text-decoration: none;
}
.icons {
  display: flex;
  align-items: center;
  gap: 16px;
}
.icons a {
  display: flex;
  cursor: pointer;
  padding: 2px;
  position: relative;
}
.icons svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: var(--ink);
  stroke-width: 1.6;
}
.badge {
  position: absolute;
  top: -7px;
  right: -9px;
  background: var(--ink);
  color: var(--paper);
  font-size: 9px;
  line-height: 1;
  padding: 3px 5px;
  border-radius: 99px;
  min-width: 8px;
  text-align: center;
}

/* ---- primitives ---- */
.ph {
  background: var(--ph);
  color: var(--ph-fg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-align: center;
  overflow: hidden;
}
.ph img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
/* リンク内に置いてもプレースホルダ文字に下線を出さない */
a .ph,
.ph {
  text-decoration: none;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--ink);
  color: var(--paper);
  font-size: 12px;
  letter-spacing: 0.18em;
  padding: 13px 30px;
  border: 1px solid var(--ink);
  cursor: pointer;
  font-family: inherit;
  text-decoration: none;
}
.btn2 {
  background: transparent;
  color: var(--ink);
}
.btn[disabled],
.btn.is-off {
  color: var(--ink-4);
  border-color: var(--line-2);
  background: transparent;
  cursor: default;
}
.inp {
  width: 100%;
  border: 1px solid var(--line-2);
  background: #fff;
  padding: 11px 12px;
  font-size: 13px;
  font-family: inherit;
  color: var(--ink);
}
.lbl {
  display: block;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  margin: 0 0 6px;
}
.chip {
  display: inline-block;
  font-size: 10.5px;
  padding: 3px 10px;
  border: 1px solid rgba(33, 30, 25, 0.25);
  border-radius: 999px;
  white-space: nowrap;
}
.chip-on {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.chip-low {
  color: var(--warn);
  border-color: #c8a06a;
}
.chip-err {
  color: var(--err);
  border-color: #c98d80;
}
.note {
  font-size: 11px;
  color: var(--ink-4);
}
.err {
  font-size: 11px;
  color: var(--err);
}
.box {
  border: 1px solid rgba(33, 30, 25, 0.15);
}
.dashed {
  border: 1px dashed rgba(33, 30, 25, 0.25);
}
.turnstile-ok {
  border: 1px solid rgba(33, 30, 25, 0.25);
  background: var(--tint);
  padding: 10px 16px;
  font-size: 10.5px;
  color: var(--ink-3);
  letter-spacing: 0.06em;
  text-align: center;
}

/* ---- layout helpers ---- */
.px30 {
  padding-left: 30px;
  padding-right: 30px;
}
.pgrid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px 20px;
}
.fgrid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.pdet {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 44px;
}
.heroT {
  font-size: 38px;
}
.tw {
  overflow-x: auto;
}
.thon {
  outline: 2px solid var(--ink);
  outline-offset: -2px;
}
.narrow {
  max-width: 560px;
  margin: 0 auto;
}
.narrower {
  max-width: 400px;
  margin: 0 auto;
}
.center {
  text-align: center;
}
.stack {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ---- product card ---- */
.pcard {
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-decoration: none;
  cursor: pointer;
}
.pcard .thumb {
  position: relative;
}
.pcard .fav {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 30px;
  height: 30px;
  background: rgba(253, 252, 250, 0.92);
  border-radius: 99px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: none;
  padding: 0;
}
.fav svg {
  width: 15px;
  height: 15px;
  /* 既定は塗りなし。お気に入り時のみインラインstyleで fill が上書きされる */
  fill: none;
  stroke: var(--ink);
  stroke-width: 1.7;
}
.pcard a {
  text-decoration: none;
}
.pcard.sold {
  opacity: 0.55;
}

/* ---- qty stepper ---- */
.qty {
  display: flex;
  align-items: center;
  gap: 14px;
  border: 1px solid var(--line-2);
  padding: 0 14px;
  font-size: 13px;
  user-select: none;
}
.qty button {
  color: var(--ink-4);
  cursor: pointer;
  padding: 10px 2px;
  background: none;
  border: none;
  font-family: inherit;
  font-size: inherit;
}

/* ---- toast ---- */
#toast {
  position: fixed;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--ink);
  color: var(--paper);
  font-size: 12px;
  letter-spacing: 0.06em;
  padding: 11px 22px;
  border-radius: 4px;
  box-shadow: 0 6px 20px rgba(33, 30, 25, 0.3);
  z-index: 100;
  white-space: nowrap;
}

/* ---- admin ---- */
.ahd {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--ink);
  color: var(--paper);
  padding: 12px 24px;
  font-size: 12px;
  flex-wrap: wrap;
}
.atabs {
  display: flex;
  gap: 2px;
  border-bottom: 1px solid rgba(33, 30, 25, 0.15);
  padding: 0 16px;
  align-items: center;
  flex-wrap: wrap;
}
.atab {
  padding: 11px 14px;
  font-size: 12px;
  color: var(--ink-3);
  text-decoration: none;
}
.atab-on {
  color: var(--ink);
  font-weight: 600;
  box-shadow: inset 0 -2px 0 var(--ink);
}
.thead,
.trow {
  display: grid;
  gap: 10px;
  align-items: center;
}
.thead {
  padding: 8px 10px;
  border-bottom: 1px solid rgba(33, 30, 25, 0.22);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  font-weight: 600;
}
.trow {
  padding: 11px 10px;
  border-bottom: 1px solid rgba(33, 30, 25, 0.1);
  font-size: 12px;
}

@media (max-width: 760px) {
  .pgrid {
    grid-template-columns: repeat(2, 1fr);
  }
  .fgrid {
    grid-template-columns: 1fr;
  }
  .pdet {
    grid-template-columns: 1fr;
    gap: 26px;
  }
  .px30 {
    padding-left: 16px;
    padding-right: 16px;
  }
  .shd {
    padding: 12px 16px;
  }
  .heroT {
    font-size: 26px;
  }
  .sfoot {
    padding: 18px 16px;
  }
}