:root {
  --ink: #0f172a;
  --muted: #5b6b88;
  --canvas: #f6f7fb;
  --card: #ffffff;
  --accent: #6a5acd;
  --accent-2: #2bb0ed;
  --border: #e3e7f0;
  --shadow: 0 20px 60px rgba(15, 23, 42, 0.16);
  --radius: 16px;
  --font-sans: "Noto Sans JP", "Archivo", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--ink);
  background: radial-gradient(circle at 20% 20%, rgba(107, 70, 193, 0.12), transparent 25%),
              radial-gradient(circle at 80% 0%, rgba(43, 176, 237, 0.12), transparent 20%),
              linear-gradient(180deg, #f8fafc 0%, #eef2ff 60%, #f8fafc 100%);
}

.page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 20px 60px;
}

.hero {
  background: linear-gradient(135deg, rgba(106, 90, 205, 0.16), rgba(43, 176, 237, 0.16));
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: calc(var(--radius) * 1.4);
  padding: 28px 32px;
  box-shadow: var(--shadow);
}

.hero__copy h1 {
  margin: 6px 0 10px;
  font-size: 28px;
  letter-spacing: -0.01em;
}

.hero__copy .lede {
  margin: 0 0 14px;
  color: var(--muted);
}

.eyebrow {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
}

.status-row {
  display: flex;
  gap: 12px;
  align-items: center;
  margin: 12px 0;
  flex-wrap: wrap;
}

.pill {
  padding: 10px 14px;
  background: #fff;
  border-radius: 999px;
  border: 1px solid rgba(15, 23, 42, 0.05);
  color: var(--muted);
  font-size: 14px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}

#statusText[data-tone="success"] {
  color: #0f9d58;
}

#statusText[data-tone="error"] {
  color: #dc2626;
}

#statusText[data-tone="info"],
#statusText[data-tone="muted"] {
  color: var(--muted);
}

.meta {
  font-size: 14px;
  color: var(--muted);
}

.controls {
  margin: 24px 0 14px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  align-items: end;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
}

.control label {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 6px;
}

.control input[type="number"],
.control input[type="text"] {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fff;
  font-size: 15px;
}

.control.inline {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn {
  cursor: pointer;
  border: none;
  border-radius: 12px;
  padding: 12px 18px;
  font-weight: 700;
  letter-spacing: 0.01em;
  transition: transform 150ms ease, box-shadow 150ms ease;
}

.btn.primary {
  background: linear-gradient(120deg, var(--accent) 0%, var(--accent-2) 100%);
  color: #fff;
  box-shadow: 0 14px 30px rgba(106, 90, 205, 0.25);
}

.btn.ghost {
  background: #fff;
  border: 1px solid var(--border);
  color: var(--ink);
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 24px rgba(15, 23, 42, 0.12);
}

.charts {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 10px;
}

.chart-card {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 12px 12px 20px;
  box-shadow: 0 12px 34px rgba(15, 23, 42, 0.08);
  display: flex;
  flex-direction: column;
  position: relative;
  height: 380px;
  overflow: hidden;
}

.chart-card h3 {
  margin: 6px 0 10px;
  font-size: 16px;
  color: var(--ink);
}

.chart-card canvas {
  width: 100% !important;
  height: auto !important;
  flex: 1;
  min-height: 0;
  display: block;
}

.footnote {
  margin-top: 22px;
  font-size: 13px;
  color: var(--muted);
}

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

a:hover {
  text-decoration: underline;
}

@media (max-width: 720px) {
  .hero {
    padding: 20px;
  }

  .chart-card canvas {
    height: 220px;
  }
}