:root {
  --bg: #0f1419;
  --card: #1a2332;
  --text: #e7ecf3;
  --muted: #8b9bb4;
  --accent: #3d9cf0;
  --good: #3dd68c;
  --bad: #f07178;
  --border: #2a3548;
  --radius: 14px;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  font-family: "Segoe UI", "Hiragino Sans", "Noto Sans JP", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  min-height: 100%;
}
body { line-height: 1.5; }

.wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 16px 14px 40px;
}

header.app-header {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 16px;
}
header h1 {
  font-size: 1.25rem;
  margin: 0 0 4px;
  font-weight: 700;
}
.sub {
  color: var(--muted);
  font-size: 0.85rem;
}

.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  background: #243044;
  color: var(--muted);
  font-size: 0.75rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 14px;
}
@media (min-width: 720px) {
  .grid { grid-template-columns: repeat(4, 1fr); }
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  box-shadow: var(--shadow);
}
.card h2 {
  margin: 0 0 10px;
  font-size: 0.95rem;
  color: var(--muted);
  font-weight: 600;
}
.metric-label {
  font-size: 0.78rem;
  color: var(--muted);
}
.metric-value {
  font-size: 1.35rem;
  font-weight: 700;
  margin-top: 2px;
  word-break: break-all;
}
.pos { color: var(--good); }
.neg { color: var(--bad); }

.chart-box {
  position: relative;
  height: 220px;
  margin-bottom: 14px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}
th, td {
  text-align: left;
  padding: 8px 6px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
th { color: var(--muted); font-weight: 600; }
.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.pin-gate {
  max-width: 360px;
  margin: 15vh auto;
  padding: 20px;
}
.pin-gate input {
  width: 100%;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #0d121a;
  color: var(--text);
  font-size: 1rem;
  margin: 10px 0;
}
.btn {
  display: inline-block;
  width: 100%;
  padding: 12px;
  border: 0;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
}
.btn.secondary {
  background: #2a3a52;
  margin-top: 8px;
}
.error { color: var(--bad); font-size: 0.9rem; }
.footer {
  margin-top: 20px;
  color: var(--muted);
  font-size: 0.75rem;
  text-align: center;
}
.row-buy { color: var(--good); }
.row-sell { color: var(--bad); }
.skeleton {
  opacity: 0.5;
}