:root {
  --bg: #0c1016;
  --bg-2: #121826;
  --ink: #e8e4d8;
  --muted: #9aa3b5;
  --line: rgba(232, 228, 216, 0.12);
  --card: #171e2c;
  --accent: #d4a15a;
  --accent-2: #7ee0c2;
  --danger: #e07a5f;
  --max: 72rem;
  --sans: "IBM Plex Sans JP", "Hiragino Sans", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(1200px 500px at 10% -10%, rgba(212, 161, 90, 0.12), transparent 50%),
    radial-gradient(900px 400px at 100% 0%, rgba(126, 224, 194, 0.08), transparent 45%),
    var(--bg);
  font-family: var(--sans);
  line-height: 1.75;
  font-size: 1.02rem;
}

a { color: var(--accent-2); }
a:hover { color: #b7f5e3; }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.25rem 5rem;
}

header.site {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: rgba(12, 16, 22, 0.82);
  border-bottom: 1px solid var(--line);
}

header.site .inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.7rem 1.25rem;
  display: flex;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--accent);
  text-decoration: none;
  font-size: 0.92rem;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.9rem;
  font-size: 0.84rem;
}

nav a {
  color: var(--muted);
  text-decoration: none;
}

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

.hero {
  padding: 3.2rem 0 2rem;
}

.kicker {
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin: 0 0 0.7rem;
}

h1 {
  margin: 0 0 1rem;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  line-height: 1.25;
  letter-spacing: -0.03em;
}

.lede {
  max-width: 46rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.4rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 999px;
  padding: 0.25rem 0.7rem;
  font-size: 0.78rem;
  color: var(--muted);
}

h2 {
  margin: 3rem 0 0.9rem;
  font-size: 1.45rem;
  letter-spacing: -0.02em;
}

h3 {
  margin: 1.6rem 0 0.5rem;
  font-size: 1.08rem;
  color: var(--accent-2);
}

p { margin: 0.7rem 0; }

section.note, .callout {
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 14px;
  padding: 1rem 1.15rem;
  color: var(--muted);
}

.callout strong { color: var(--ink); }

.groups {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.8rem;
  margin: 1.2rem 0 0.4rem;
}

.group-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0.95rem 1rem;
}

.group-card h3 {
  margin: 0 0 0.35rem;
  color: var(--ink);
  font-size: 0.98rem;
}

.group-card p {
  margin: 0 0 0.7rem;
  color: var(--muted);
  font-size: 0.86rem;
}

.pills { display: flex; flex-wrap: wrap; gap: 0.35rem; }

.pill {
  font-family: var(--mono);
  font-size: 0.72rem;
  padding: 0.12rem 0.45rem;
  border-radius: 6px;
  background: #0c1016;
  border: 1px solid var(--line);
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin: 1rem 0;
}

.toolbar input, .toolbar select {
  background: var(--card);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.45rem 0.7rem;
  font-family: inherit;
}

.filters { display: flex; flex-wrap: wrap; gap: 0.4rem; }

.filter {
  cursor: pointer;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  border-radius: 999px;
  padding: 0.28rem 0.7rem;
  font-family: inherit;
}

.filter.active {
  color: #0c1016;
  background: var(--accent);
  border-color: var(--accent);
}

.table-wrap {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #101623;
  max-height: min(70vh, 44rem);
}

table.cmp {
  border-collapse: separate;
  border-spacing: 0;
  min-width: 96rem;
  font-size: 0.84rem;
}

table.cmp th, table.cmp td {
  border-bottom: 1px solid var(--line);
  padding: 0.65rem 0.7rem;
  vertical-align: top;
  text-align: left;
}

table.cmp thead th {
  position: sticky;
  top: 0;
  background: #1b2436;
  z-index: 2;
  font-weight: 600;
  white-space: nowrap;
}

table.cmp td.lang, table.cmp th.lang {
  position: sticky;
  left: 0;
  background: #151c2b;
  z-index: 1;
  min-width: 8.2rem;
}

table.cmp thead th.lang { z-index: 3; }

table.cmp tbody tr { cursor: pointer; }
table.cmp tbody tr:hover td { background: #1c2638; }
table.cmp tbody tr:hover td.lang { background: #243044; }

.dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  display: inline-block;
  margin-right: 0.4rem;
}

.axis {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.1rem 1.2rem 1.3rem;
  margin: 1rem 0;
}

.axis h3 { margin-top: 0.2rem; }

ul.tight { margin: 0.4rem 0 0.2rem; padding-left: 1.2rem; }
ul.tight li { margin: 0.25rem 0; }

.profiles {
  display: grid;
  gap: 0.8rem;
}

.profile {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--card);
  padding: 1rem 1.15rem 1.15rem;
}

.profile header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: baseline;
  background: none;
  border: 0;
  position: static;
  padding: 0;
}

.profile h3 {
  margin: 0;
  color: var(--ink);
  font-size: 1.2rem;
}

.badge {
  font-size: 0.75rem;
  color: var(--muted);
  font-family: var(--mono);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem 1.2rem;
}

@media (max-width: 800px) {
  .grid-2 { grid-template-columns: 1fr; }
  nav { display: none; }
}

.kv { font-size: 0.88rem; color: var(--muted); }
.kv b { color: var(--ink); font-weight: 600; }

.usecases {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0.8rem;
}

.use {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0.95rem 1rem;
  background: var(--bg-2);
}

.use h3 { margin: 0 0 0.4rem; color: var(--accent); font-size: 1rem; }

footer {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.86rem;
}

code, .mono { font-family: var(--mono); font-size: 0.88em; }