:root {
  --bg: #f7f7f5;
  --panel: #ffffff;
  --ink: #1c1c1a;
  --ink-soft: #55534d;
  --line: #dddbd4;
  --accent: #b4530f;
  --accent-soft: #fbf0e6;
  --low: #6f8f6a;
  --container: 760px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-size: 17px;
  line-height: 1.75;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP",
    "Yu Gothic", Meiryo, sans-serif;
  -webkit-text-size-adjust: 100%;
}

.wrap {
  max-width: var(--container);
  margin: 0 auto;
  padding-inline: 16px;
}

/* 冒頭の見出し領域は小さく保つ。広げるのは必要になったときだけ */
.hero {
  padding-block: 24px 20px;
  border-bottom: 1px solid var(--line);
}

.hero h1 {
  margin: 0 0 8px;
  font-size: 26px;
  line-height: 1.4;
  letter-spacing: 0.01em;
}

.hero p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 16px;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  padding-block: 12px;
  font-size: 15px;
  border-bottom: 1px solid var(--line);
}

.site-nav a { color: var(--ink-soft); }

main { padding-block: 24px 8px; }

h2 {
  font-size: 20px;
  margin: 32px 0 12px;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--line);
}

h3 { font-size: 17px; margin: 24px 0 8px; }

a { color: var(--accent); }

/* 長いURLや連続した英数字で、狭い画面が横に伸びないようにする */
body, li, p, td, th { overflow-wrap: anywhere; }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px 16px;
  margin-block: 16px;
}

/* 入力 */
.field { margin-bottom: 16px; }

.field label {
  display: block;
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 4px;
}

.field .hint {
  display: block;
  font-weight: 400;
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.6;
  margin-bottom: 6px;
}

.field select,
.field input {
  width: 100%;
  font-size: 17px;
  font-family: inherit;
  padding: 10px 12px;
  border: 1px solid #bdbab2;
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
}

.field input:focus,
.field select:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.row2 { display: flex; gap: 12px; flex-wrap: wrap; }
.row2 > * { flex: 1 1 200px; }

button {
  width: 100%;
  font-size: 18px;
  font-family: inherit;
  font-weight: 700;
  color: #fff;
  background: var(--accent);
  border: 0;
  border-radius: 8px;
  padding: 14px 16px;
  cursor: pointer;
}

button:hover { background: #9c470c; }

.error {
  color: #a3261a;
  font-size: 15px;
  margin-top: 10px;
}

/* 結果 */
#result[hidden] { display: none !important; }

.verdict {
  background: var(--accent-soft);
  border: 1px solid #e8cdb2;
  border-radius: 10px;
  padding: 16px;
  margin-bottom: 20px;
}

.verdict .lead {
  font-size: 15px;
  color: var(--ink-soft);
  margin: 0 0 4px;
}

.verdict .headline {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.45;
  margin: 0;
}

.metric { margin-bottom: 26px; }

.metric h3 {
  margin: 0 0 2px;
  font-size: 17px;
}

.metric .yours {
  font-size: 22px;
  font-weight: 700;
  margin: 0 0 10px;
}

.metric .yours .pos { color: var(--accent); }

.bar {
  position: relative;
  height: 12px;
  border-radius: 6px;
  background: linear-gradient(90deg, #dfe7dd 0%, #ece5d8 50%, #f0dcc8 100%);
  margin: 22px 0 8px;
}

.bar .avg {
  position: absolute;
  top: -5px;
  width: 2px;
  height: 22px;
  background: #8d8a82;
  transform: translateX(-1px);
}

.bar .you {
  position: absolute;
  top: -8px;
  width: 4px;
  height: 28px;
  border-radius: 2px;
  background: var(--accent);
  transform: translateX(-2px);
}

.scale {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  color: var(--ink-soft);
  gap: 8px;
}

.scale span { white-space: nowrap; }

.diffs {
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
  font-size: 16px;
}

.diffs li { padding: 2px 0; }

.diffs .up { color: var(--accent); font-weight: 700; }
.diffs .down { color: var(--low); font-weight: 700; }

.na {
  font-size: 15px;
  color: var(--ink-soft);
  background: #f1f0ec;
  border-radius: 8px;
  padding: 10px 12px;
}

.note {
  font-size: 15px;
  color: var(--ink-soft);
  line-height: 1.7;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 16px;
}

.scroll-x { overflow-x: auto; }

th, td {
  border: 1px solid var(--line);
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
}

th { background: #efeee9; font-weight: 700; }

footer {
  margin-top: 40px;
  padding-block: 20px 32px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.8;
}

footer a { color: var(--ink-soft); }

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1b1b19;
    --panel: #242320;
    --ink: #ece9e2;
    --ink-soft: #a9a59c;
    --line: #3b3934;
    --accent: #e08a44;
    --accent-soft: #322619;
    --low: #8fb489;
  }
  .field select, .field input { background: #2c2b27; border-color: #545049; color: var(--ink); }
  button { color: #1b1b19; }
  th { background: #2f2e2a; }
  .na { background: #2c2b27; }
  .verdict { border-color: #5a452c; }
  .bar { background: linear-gradient(90deg, #334031 0%, #3d3a2e 50%, #47382a 100%); }
}

/* 判定のあとの「次に確かめられること」 */
ul.asks {
  margin: 12px 0 0;
  padding-left: 1.2em;
}

ul.asks li {
  margin-bottom: 12px;
  line-height: 1.8;
}