:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --ink: #1c2430;
  --ink-soft: #5b6472;
  --border: #e3e6ea;
  --accent: #1d6fd6;
  --accent-soft: #e8f1fd;
  --accent-ink: #0d4b96;
  --chip: #eef1f5;
  --warn-bg: #fff6e5;
  --warn-ink: #8a5a00;
  --shadow: 0 1px 2px rgba(20, 30, 50, 0.04), 0 6px 20px rgba(20, 30, 50, 0.06);
  --radius: 14px;
  font-size: 16px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Hiragino Sans", "Yu Gothic", "Noto Sans JP", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.page {
  max-width: 900px;
  margin: 0 auto;
  padding: 28px 20px 60px;
}

header.app-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
  flex-wrap: wrap;
}

.title-block h1 {
  font-size: 1.5rem;
  margin: 0 0 4px;
  letter-spacing: 0.01em;
}

.title-block p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.lang-switch {
  display: flex;
  gap: 6px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px;
  box-shadow: var(--shadow);
}

.lang-switch button {
  border: none;
  background: transparent;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.85rem;
  cursor: pointer;
  color: var(--ink-soft);
  font-weight: 600;
}

.lang-switch button.active {
  background: var(--accent);
  color: #fff;
}

.controls {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: flex-end;
  margin-bottom: 22px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1 1 220px;
  min-width: 180px;
}

.field label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--ink-soft);
}

.field select {
  appearance: none;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 36px 10px 12px;
  font-size: 0.95rem;
  background: #fff url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="%235b6472" stroke-width="2"><path d="M6 9l6 6 6-6"/></svg>') no-repeat right 12px center;
  color: var(--ink);
  cursor: pointer;
}

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

.print-btn {
  border: none;
  background: var(--accent);
  color: #fff;
  padding: 11px 18px;
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  box-shadow: var(--shadow);
}
.print-btn:hover { background: var(--accent-ink); }

.empty-state {
  text-align: center;
  color: var(--ink-soft);
  padding: 60px 20px;
  font-size: 0.95rem;
}

.sheet {
  background: var(--panel);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 22px;
}

.sheet-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}

.sheet-head .flag {
  font-size: 1.05rem;
  line-height: 1;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--accent-ink);
  background: var(--accent-soft);
  border-radius: 10px;
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.sheet-head h2 { margin: 0; font-size: 1.3rem; }
.sheet-head .sub { margin: 2px 0 0; color: var(--ink-soft); font-size: 0.85rem; }

.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

@media (max-width: 640px) {
  .grid { grid-template-columns: 1fr; }
}

.card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
  background: #fdfdfe;
}

.card h3 {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 8px;
  font-size: 0.95rem;
}

.card h3 .ico { font-size: 1.1rem; }

.card p, .card li { font-size: 0.87rem; line-height: 1.55; color: var(--ink); margin: 0 0 6px; }

.card ul { margin: 0; padding-left: 0; list-style: none; }
.card li { display: flex; gap: 8px; align-items: flex-start; }
.card li .bullet { color: var(--accent); font-weight: 700; }

.card .updated {
  margin-top: 8px;
  font-size: 0.72rem;
  color: var(--ink-soft);
  border-top: 1px dashed var(--border);
  padding-top: 6px;
}

.card.wide { grid-column: 1 / -1; }

.fx-main {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--accent-ink);
  margin-bottom: 4px;
}

.fx-sub { font-size: 0.8rem; color: var(--ink-soft); margin-bottom: 6px; }

.fx-warn {
  background: var(--warn-bg);
  color: var(--warn-ink);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 0.78rem;
  margin-top: 6px;
}

.price-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-ink);
  font-weight: 700;
  font-size: 0.82rem;
  margin-bottom: 8px;
}

.overview-item { margin-bottom: 12px; }
.overview-item:last-of-type { margin-bottom: 0; }
.overview-item h4 {
  margin: 0 0 4px;
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.overview-item p { margin: 0; }

.plug-row { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.plug-icon-wrap { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.plug-icon-wrap svg { width: 52px; height: 52px; }
.plug-icon-wrap span { font-size: 0.72rem; color: var(--ink-soft); font-weight: 700; }

.official-note {
  margin-top: 16px;
  font-size: 0.78rem;
  color: var(--ink-soft);
  background: var(--chip);
  border-radius: 10px;
  padding: 10px 12px;
}

footer.app-footer {
  margin-top: 22px;
  font-size: 0.72rem;
  color: var(--ink-soft);
  text-align: center;
  line-height: 1.6;
}

/* Print styles: fit an A4 page */
@media print {
  body { background: #fff; }
  .lang-switch, .print-btn, .controls .field, .empty-state { display: none !important; }
  .controls { box-shadow: none; border: none; padding: 0; margin-bottom: 10px; }
  .page { max-width: 100%; padding: 0; }
  .sheet { box-shadow: none; border: none; padding: 0; }
  .card { break-inside: avoid; }
  header.app-header { margin-bottom: 10px; }
  footer.app-footer { margin-top: 10px; }
  @page { size: A4; margin: 12mm; }
}