:root {
  --ink: #0b0e13;
  --ink-2: #131820;
  --line: #232b36;
  --text: #e6e2da;
  --muted: #96a0ad;
  --rail: #ede7dc;
  --grip: #e8a33d;
  --steel: #808d9e;
  --measure: 42rem;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font-family: ui-sans-serif, -apple-system, "Hiragino Sans", "Noto Sans JP", system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.85;
  letter-spacing: 0.01em;
}

a { color: var(--grip); text-decoration: none; border-bottom: 1px solid rgba(232, 163, 61, 0.35); }
a:hover { border-bottom-color: var(--grip); }

.wrap { max-width: var(--measure); margin: 0 auto; padding: 0 1.5rem; }

header.site {
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, var(--ink-2), var(--ink));
}
header.site .wrap { display: flex; align-items: center; gap: 0.85rem; padding-top: 1.4rem; padding-bottom: 1.4rem; }
header.site img { width: 34px; height: 34px; border-radius: 8px; }
header.site .name { font-weight: 650; letter-spacing: 0.02em; border: 0; color: var(--text); }
header.site nav { margin-left: auto; display: flex; gap: 1.1rem; font-size: 0.9rem; }
header.site nav a { color: var(--muted); border: 0; }
header.site nav a:hover { color: var(--text); }

main { padding: 3.5rem 0 5rem; }

h1 {
  font-size: clamp(1.75rem, 4.5vw, 2.4rem);
  line-height: 1.35;
  letter-spacing: -0.01em;
  margin: 0 0 1rem;
}
h2 {
  font-size: 1.2rem;
  margin: 3rem 0 0.9rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--line);
  letter-spacing: 0.01em;
}
h3 { font-size: 1.02rem; margin: 2rem 0 0.5rem; color: var(--rail); }

p { margin: 0 0 1.15rem; }
.lead { font-size: 1.08rem; color: var(--muted); }
.meta { font-size: 0.85rem; color: var(--muted); margin-bottom: 2.5rem; }

ul, ol { padding-left: 1.2rem; margin: 0 0 1.15rem; }
li { margin-bottom: 0.45rem; }

strong { color: var(--rail); font-weight: 650; }

.figures {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr));
  gap: 0.75rem;
  margin: 1.75rem 0 2rem;
}
.figure {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.9rem 1rem;
  background: var(--ink-2);
}
.figure .n {
  display: block;
  font-size: 1.5rem;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
  line-height: 1.3;
}
.figure .n.zero { color: var(--grip); }
.figure .k { font-size: 0.78rem; color: var(--muted); line-height: 1.5; }

.tablewrap { overflow-x: auto; margin: 0 0 1.5rem; }
table { border-collapse: collapse; width: 100%; font-size: 0.9rem; min-width: 28rem; }
th, td { text-align: left; padding: 0.55rem 0.8rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 550; white-space: nowrap; }
td.num { font-variant-numeric: tabular-nums; white-space: nowrap; }

.note {
  border-left: 2px solid var(--grip);
  padding: 0.15rem 0 0.15rem 1rem;
  margin: 1.75rem 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.cards { display: grid; gap: 0.85rem; margin: 1.5rem 0 2rem; }
.card {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.1rem 1.2rem;
  background: var(--ink-2);
}
.card h3 { margin: 0 0 0.35rem; }
.card p { margin: 0 0 0.5rem; font-size: 0.94rem; color: var(--muted); }
.tag {
  display: inline-block;
  font-size: 0.72rem;
  padding: 0.15rem 0.5rem;
  border-radius: 99px;
  border: 1px solid var(--line);
  color: var(--muted);
}
.tag.live { color: var(--grip); border-color: rgba(232, 163, 61, 0.4); }

form { margin: 1.5rem 0 0; }
label { display: block; font-size: 0.87rem; color: var(--muted); margin: 1rem 0 0.35rem; }
input, textarea, select {
  width: 100%;
  background: var(--ink-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.6rem 0.7rem;
  font: inherit;
  font-size: 0.95rem;
}
textarea { min-height: 7rem; resize: vertical; }
input:focus, textarea:focus, select:focus { outline: 2px solid rgba(232, 163, 61, 0.5); outline-offset: 1px; }
button {
  margin-top: 1.4rem;
  background: var(--grip);
  color: #1a1206;
  border: 0;
  border-radius: 8px;
  padding: 0.7rem 1.3rem;
  font: inherit;
  font-weight: 650;
  cursor: pointer;
}
button:disabled { opacity: 0.55; cursor: default; }
.formnote { font-size: 0.82rem; color: var(--muted); margin-top: 0.9rem; }
.result { margin-top: 1rem; font-size: 0.92rem; }
.result.ok { color: var(--grip); }
.result.ng { color: #e08a7d; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

footer.site {
  border-top: 1px solid var(--line);
  padding: 2rem 0 3rem;
  font-size: 0.84rem;
  color: var(--muted);
}
footer.site a { color: var(--muted); }