/* 明るくやわらかい配色（クリーム地・若草色・桃色の差し色）。ダークモードには切り替えない */
:root {
  color-scheme: light;
  --bg: #fffaf2;
  --panel: #ffffff;
  --text: #3d3530;
  --muted: #7d7067;
  --line: #f0e2d2;
  --accent: #23935f;
  --accent-strong: #1b7a4e;
  --accent-soft: #e4f6ec;
  --peach: #ffe9d9;
  --pink: #f472a0;
  --sub: #8a5cf0;
  --sub-soft: #f2ecff;
  --warn: #b85a0e;
  --warn-soft: #fff3df;
  --danger: #d23c3c;
  --gold: #f6b72a;
  --silver: #c3cad3;
  --bronze: #e3a27a;
  --shadow: 0 2px 10px rgba(160, 120, 80, .08);
  --radius: 18px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: "Hiragino Maru Gothic ProN", "BIZ UDPGothic", "Yu Gothic UI", "Meiryo", system-ui, sans-serif;
  line-height: 1.7;
}
header.site, main, footer.site { max-width: 1040px; margin: 0 auto; padding: 0 16px; }
.pr { margin: 0; padding: 4px 16px; font-size: .75rem; color: var(--muted); background: var(--panel); border-bottom: 1px solid var(--line); text-align: center; }

/* 見出しの帯 */
.hero { background: linear-gradient(135deg, var(--peach) 0%, #fff6e8 45%, var(--accent-soft) 100%); border-bottom: 1px solid var(--line); margin-bottom: 20px; }
header.site { padding-top: 24px; padding-bottom: 20px; }
h1 { font-size: 1.8rem; margin: 0 0 4px; letter-spacing: .04em; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.logo { width: 40px; height: 40px; flex: none; }
.h1-sub { font-size: .95rem; font-weight: 600; color: var(--muted); letter-spacing: 0; }
.badge { font-size: .72rem; background: var(--panel); color: var(--accent); border: 1px solid var(--accent); padding: 1px 10px; border-radius: 999px; letter-spacing: 0; }
.lead { margin: 0 0 12px; }
.chips { display: flex; gap: 8px; flex-wrap: wrap; margin: 0; padding: 0; list-style: none; }
.chips li { background: var(--panel); border-radius: 999px; padding: 2px 12px; font-size: .82rem; box-shadow: var(--shadow); }
.chips li::before { content: "✓ "; color: var(--accent); font-weight: 700; }

h2 { font-size: 1.15rem; margin: 0; display: flex; align-items: center; gap: 8px; }
h3 { font-size: 1rem; margin: 16px 0 8px; }
.step { display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: var(--accent); color: #fff; font-size: .95rem; flex: none; }
section { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; margin-bottom: 18px; box-shadow: var(--shadow); }
section > h2 { margin-bottom: 12px; }

/* 使い方（パソコンとスマホで出し分け） */
.howto { margin: 0 0 12px; padding: 10px 12px 10px 2.2em; background: var(--bg); border-radius: 12px; }
.howto li { margin: 2px 0; }
.howto-sp { display: none; padding: 10px 12px; }
.howto-sp ol { margin: 0; padding-left: 1.4em; }
.howto-note { font-size: .8rem; color: var(--muted); }
kbd { border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 4px; padding: 0 5px; font-size: .85em; background: var(--panel); font-family: inherit; }

textarea {
  width: 100%; font: inherit; font-size: 16px; padding: 14px; border: 2px dashed #e7c9a8; border-radius: 14px;
  background: #fffdf9; color: var(--text); resize: vertical; min-height: 96px;
}
textarea::placeholder { color: #b19c88; }
textarea:focus { outline: none; border-color: var(--accent); background: var(--panel); }
.actions { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
button {
  font: inherit; cursor: pointer; border-radius: 999px; padding: 8px 20px; min-height: 40px;
  border: 1px solid var(--accent-strong); background: var(--accent-strong); color: #fff; font-weight: 600;
}
button:hover { background: #156640; }
button.secondary { background: var(--panel); color: var(--accent); }
button.secondary:hover { background: var(--accent-soft); }
button.link { background: none; border: none; color: var(--accent); padding: 0 4px; min-height: 0; text-decoration: underline; font-weight: normal; border-radius: 4px; }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, summary:focus-visible { outline: 3px solid var(--pink); outline-offset: 2px; }
.msg { min-height: 1.6em; margin: 8px 0 0; color: var(--accent); font-weight: 600; }
.msg.error { color: var(--danger); }
.privacy { font-size: .82rem; color: var(--muted); margin: 4px 0 0; }
.privacy::before { content: "🔒 "; }
.pages-box { margin-top: 12px; }
.pages-box summary { cursor: pointer; color: var(--muted); font-size: .9rem; padding: 4px 0; }
.pages { list-style: none; padding: 0; margin: 8px 0 0; display: grid; gap: 8px; }
.pages li { border: 1px solid var(--line); border-radius: 12px; padding: 8px 12px; position: relative; padding-right: 88px; background: var(--bg); }
.pages li button { position: absolute; right: 8px; top: 8px; }
.page-title { font-weight: 600; font-size: .92rem; overflow-wrap: anywhere; }
.page-meta { font-size: .8rem; color: var(--muted); overflow-wrap: anywhere; }

/* 結果 */
.result-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; }
.toggle { display: inline-flex; align-items: center; gap: 8px; font-size: .95rem; cursor: pointer; background: var(--sub-soft); color: var(--sub); padding: 6px 16px; border-radius: 999px; font-weight: 600; min-height: 44px; }
.toggle input { width: 20px; height: 20px; accent-color: var(--sub); margin: 0; }

.reversal { background: var(--warn-soft); border-radius: 14px; padding: 10px 14px; margin-bottom: 14px; }
.reversal strong::before { content: "💡 "; }
.reversal ul { margin: 4px 0 0; padding-left: 1.2em; }
.reversal li { overflow-wrap: anywhere; }
.reversal b { color: var(--warn); }
.reversal .more { font-size: .8rem; color: var(--muted); }
.note, .empty { font-size: .85rem; color: var(--muted); }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: .92rem; }
th, td { padding: 10px 8px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { font-size: .8rem; color: var(--muted); font-weight: 600; white-space: nowrap; background: var(--bg); }
th:first-child { border-top-left-radius: 10px; }
th:last-child { border-top-right-radius: 10px; }
.num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
td.unit .val { font-weight: 700; font-size: 1.15rem; color: var(--accent-strong); }
tr.top td { background: #fffbea; }
td.rank { white-space: nowrap; font-weight: 600; text-align: center; }
.rank-badge { display: inline-grid; grid-auto-flow: column; place-items: center; white-space: nowrap; min-width: 40px; height: 28px; padding: 0 8px; border-radius: 999px; background: var(--bg); border: 1px solid var(--line); font-size: .85rem; }
.rank-1 { background: var(--gold); border-color: var(--gold); color: #4a3200; }
.rank-1::before { content: "👑"; margin-right: 2px; font-size: .8rem; }
.rank-2 { background: var(--silver); border-color: var(--silver); }
.rank-3 { background: var(--bronze); border-color: var(--bronze); }
td.item { min-width: 220px; }
td.arrive { font-size: .85rem; white-space: nowrap; }
td.ops { width: 9.5em; }
td.ops > * { display: block; margin-bottom: 6px; }
.label { font-weight: 700; overflow-wrap: anywhere; }
.sub { font-size: .8rem; color: var(--muted); overflow-wrap: anywhere; font-weight: normal; }
.seller-mp { color: var(--warn); } /* Amazon.co.jp 以外の出品者 */
.kind { font-size: .7rem; padding: 1px 8px; border-radius: 999px; vertical-align: middle; font-weight: 600; }
.kind-oneTime { background: var(--bg); color: var(--muted); border: 1px solid var(--line); }
.kind-subscribe { background: var(--sub-soft); color: var(--sub); }
td.price .val { font-weight: 700; }
.sub.other { color: var(--muted); }
.edited { display: inline-block; margin-left: 4px; font-size: .7rem; color: var(--warn); border: 1px solid var(--warn); border-radius: 999px; padding: 0 6px; }
/* 商品ページへのリンク（ボタン風） */
a.amazon { display: inline-block; line-height: 1.4; color: #fff; background: #c93a74; border-radius: 999px; padding: 4px 14px; font-weight: 700; font-size: .85rem; text-decoration: none; text-align: center; }
a.amazon:hover { background: #ad2f62; }
.amazon-main { white-space: nowrap; }
.amazon-note { display: block; font-size: .72rem; font-weight: 600; }
.warn { font-size: .8rem; color: var(--warn); background: var(--warn-soft); border-radius: 8px; padding: 2px 8px; margin-top: 4px; display: inline-block; }

/* グラフ（横軸: 量、縦軸: 単価）。左下を「おトク」として強調する */
.chart-box { margin: 0 0 14px; background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 8px 8px 10px; }
.chart { width: 100%; height: auto; display: block; }
.chart .grid { stroke: var(--line); stroke-width: 1; }
.chart .axis { stroke: #cdb9a5; stroke-width: 1.5; }
.chart .tick { fill: var(--muted); font-size: 12px; }
.chart .axis-title { fill: var(--muted); font-size: 13px; }
.chart .good-stop-0 { stop-color: #7fd6a8; stop-opacity: .55; }
.chart .good-stop-1 { stop-color: #fff6e8; stop-opacity: 0; }
.chart .good-label { fill: var(--accent-strong); font-size: 15px; font-weight: 700; }
.chart .good-hint { fill: var(--accent-strong); font-size: 14px; font-weight: 700; }
.chart .good-arrow { stroke: var(--accent); stroke-width: 3; stroke-linecap: round; }
.chart .arrow-head { fill: var(--accent); }
/* 点は Amazon へのリンク。透明な大きめの円で押しやすくする */
.chart a.pt { cursor: pointer; }
.chart .pt-hit { fill: transparent; pointer-events: all; }
.chart .pt-dot { stroke: #fff; stroke-width: 2; transition: r .15s; }
.chart .pt-oneTime .pt-dot { fill: #f08a5d; }
.chart .pt-subscribe .pt-dot { fill: var(--sub); }
.chart .pt-top .pt-dot { stroke: var(--gold); stroke-width: 4; }
.chart a.pt:hover .pt-dot, .chart a.pt:focus-visible .pt-dot { stroke: var(--pink); stroke-width: 4; }
.chart a.pt:focus { outline: none; }
.chart .pt-num { fill: #fff; font-size: 11px; font-weight: 700; pointer-events: none; }
.chart-box figcaption { font-size: .85rem; color: var(--muted); margin: 4px 6px 0; }
.good-text { color: var(--accent-strong); }
.legend { white-space: nowrap; }
.legend::before { content: "●"; margin-right: 2px; }
.legend-subscribe::before { color: var(--sub); }
.legend-oneTime::before { color: #f08a5d; }

.edit-row td { background: var(--bg); }
.edit-form { display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center; font-size: .9rem; }
.edit-form label { display: inline-flex; align-items: center; gap: 4px; }
.edit-form input, .manual input { width: 7em; font: inherit; font-size: 16px; padding: 6px 8px; border: 1px solid #e3cfb9; border-radius: 10px; background: var(--panel); color: var(--text); }
.edit-form select, .manual select { font: inherit; font-size: 16px; padding: 6px; border: 1px solid #e3cfb9; border-radius: 10px; background: var(--panel); color: var(--text); }
.edit-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

.unresolved ul, .excluded ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.unresolved li { background: var(--bg); border-radius: 12px; padding: 8px 12px; }
.manual { margin-top: 4px; display: flex; gap: 6px; align-items: center; flex-wrap: wrap; font-size: .85rem; }
.notfound { margin-top: 32px; }
footer.site { padding-bottom: 32px; font-size: .8rem; color: var(--muted); }

/* 狭い画面（スマホ）: 表をカード型にし、押しやすい大きさにする */
@media (max-width: 700px) {
  body { line-height: 1.6; }
  h1 { font-size: 1.5rem; }
  .logo { width: 34px; height: 34px; }
  section { padding: 14px; border-radius: 16px; }
  .howto-pc { display: none; }
  .howto-sp { display: block; }
  .actions button { flex: 1; min-height: 48px; }
  .toggle { width: 100%; justify-content: center; }
  .chart-box { padding: 4px 2px 8px; }

  table.ranking thead { display: none; }
  table.ranking, table.ranking tbody { display: block; width: 100%; }
  table.ranking tr {
    display: grid; grid-template-columns: 1fr 1fr; gap: 4px 12px;
    border: 1px solid var(--line); border-radius: 16px; margin-bottom: 12px; padding: 12px 14px; position: relative; background: var(--panel);
  }
  table.ranking tr.top { background: #fffbea; border-color: var(--gold); box-shadow: 0 0 0 2px rgba(246, 183, 42, .25); }
  table.ranking td { display: block; border: none; padding: 2px 0; text-align: left; white-space: normal; background: none !important; }
  table.ranking td.rank { position: absolute; right: 12px; top: 10px; text-align: right; }
  table.ranking td.item { grid-column: 1 / -1; min-width: 0; padding-right: 76px; }
  table.ranking td[data-label]:not(.rank)::before { content: attr(data-label); display: block; color: var(--muted); font-size: .72rem; }
  table.ranking td.unit { grid-row: 2; grid-column: 1; }
  table.ranking td.unit .val { font-size: 1.5rem; }
  table.ranking td.price { grid-row: 2; grid-column: 2; }
  table.ranking td.ops { width: auto; grid-column: 1 / -1; display: flex; gap: 8px; flex-wrap: wrap; align-items: center; padding-top: 8px; border-top: 1px dashed var(--line); margin-top: 4px; }
  table.ranking td.ops > * { margin: 0; }
  table.ranking td.ops a.amazon { flex: 1 1 100%; padding: 10px 14px; font-size: .95rem; }
  table.ranking td.ops button.link { flex: 1; min-height: 44px; border: 1px solid var(--line); border-radius: 999px; text-decoration: none; background: var(--panel); }
  table.ranking tr.edit-row { display: block; padding: 12px; }
  table.ranking tr.edit-row td { padding: 0; }
  .edit-form input { width: 6.5em; }
  .edit-actions button { min-height: 44px; }
  .pages li { padding-right: 12px; }
  .pages li button { position: static; margin-top: 4px; }
}