:root {
  color-scheme: light;
  --bg: #f4f1ea;
  --panel: #ffffff;
  --ink: #1f2933;
  --muted: #667085;
  --accent: #0f766e;
  --accent-soft: #ccfbf1;
  --border: #e4dfd3;
  --danger: #b42318;
  --shadow: 0 12px 30px rgba(31, 41, 51, 0.08);
  font-family: "Segoe UI", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(15, 118, 110, 0.12), transparent 30%),
    linear-gradient(180deg, #faf7f0 0%, var(--bg) 100%);
  color: var(--ink);
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem 2rem;
}

.topbar h1 {
  margin: 0.2rem 0 0;
  font-size: 1.8rem;
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
  color: var(--muted);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

main {
  padding: 0 2rem 2rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 1.25rem;
}

.gate {
  max-width: 720px;
}

.centered {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1rem 1.1rem;
  box-shadow: var(--shadow);
}

.card-label {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.card-value {
  margin: 0.35rem 0 0;
  font-size: 1.6rem;
  font-weight: 700;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.chart-panel h2 {
  margin: 0 0 1rem;
  font-size: 1rem;
}

.chart-title {
  position: relative;
  display: inline-block;
  cursor: help;
}

.chart-title[data-tip]:hover::after,
.chart-title[data-tip]:focus-visible::after {
  content: attr(data-tip);
  position: absolute;
  left: 0;
  top: calc(100% + 0.45rem);
  z-index: 20;
  width: min(340px, 88vw);
  padding: 0.75rem 0.9rem;
  background: var(--ink);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 400;
  line-height: 1.45;
  border-radius: 10px;
  box-shadow: var(--shadow);
  pointer-events: none;
  white-space: normal;
}

.chart-panel canvas {
  width: 100% !important;
  height: 280px !important;
}

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

.btn {
  border: 0;
  border-radius: 999px;
  background: var(--accent);
  color: white;
  padding: 0.65rem 1rem;
  font-weight: 600;
  cursor: pointer;
}

.btn-secondary {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--border);
}

.muted {
  color: var(--muted);
}

.error {
  color: var(--danger);
}

.hidden {
  display: none !important;
}

.status {
  margin-bottom: 1rem;
}

@media (max-width: 960px) {
  .grid {
    grid-template-columns: 1fr;
  }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }
}