/* Identidade visual: Campeão das Finanças (calc.celsofukushima.com.br) */
:root {
  --brand-green-dark: #0a4a30;
  --brand-green: #0d6b41;
  --brand-gold: #f0b429;
  --brand-gold-dark: #d69a1a;
  --bg-page: #f4f6f9;
  --card-bg: #ffffff;
  --text: #1e2530;
  --muted: #6b7280;
  --placeholder: #a3aab5;
  --border: #e2e5ea;
  --accent-soft: #eef8f2;
  --inset: #fbfcfe;
  --inset-2: #f7f9fb;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg-page);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.45;
}

a { color: inherit; text-decoration: none; }

/* Header */
.site-header {
  background: var(--brand-green-dark);
  background: linear-gradient(135deg, var(--brand-green-dark), var(--brand-green));
  padding: 18px 24px;
}

.header-inner {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.logo { display: inline-flex; align-items: center; }
.logo-img { display: block; height: 56px; width: auto; border-radius: 8px; }

.back-link {
  color: var(--brand-gold);
  font-size: 0.85rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: opacity 0.15s ease;
}
.back-link:hover { opacity: 0.8; }

/* Card container */
.wrap { padding: 32px 24px 56px; }

.card {
  max-width: 1180px;
  margin: 0 auto;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px 28px 24px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
}

.card h1 { font-size: 1.375rem; margin: 0 0 4px; }

.subtitle {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0 0 8px;
  max-width: 70ch;
}

.meta-line {
  color: var(--muted);
  font-size: 0.78rem;
  margin: 0 0 22px;
}
.meta-line a { color: var(--brand-green); font-weight: 600; }

/* Layout controles + gráfico */
.layout {
  display: grid;
  grid-template-columns: 290px 1fr;
  gap: 22px;
  align-items: start;
}

.panel {
  display: flex;
  flex-direction: column;
  gap: 18px;
  background: var(--inset-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  position: sticky;
  top: 18px;
  max-height: calc(100vh - 36px);
  overflow: auto;
}

.field h2 {
  margin: 0 0 8px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--muted);
}
.field--grow { flex: 1; min-height: 0; }
.field--grow .check { margin-bottom: 8px; }

/* Segmented control */
.segmented {
  display: flex;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  background: var(--card-bg);
}
.segmented button {
  flex: 1;
  padding: 8px 6px;
  font-size: 12px;
  font-family: inherit;
  background: transparent;
  color: var(--muted);
  border: 0;
  cursor: pointer;
}
.segmented button.is-active { background: var(--brand-green); color: #fff; }

/* Checkbox */
.check {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  cursor: pointer;
}
.check input, .series-item input { accent-color: var(--brand-green); }

/* Campo de texto (janelas da MME) */
.text-field {
  display: block;
  margin-top: 10px;
  font-size: 12px;
  color: var(--muted);
}
.text-field input {
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  font-size: 14px;
  font-family: inherit;
  color: var(--text);
  background: var(--inset);
  border: 1px solid var(--border);
  border-radius: 10px;
}
.text-field input:focus {
  outline: none;
  border-color: var(--brand-green);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.hint { margin: 8px 0 0; font-size: 11px; color: var(--muted); }
code {
  background: var(--accent-soft);
  color: var(--brand-green);
  border-radius: 6px;
  padding: 1px 6px;
  font-size: 11px;
}

/* Chips de período */
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chips button {
  padding: 6px 10px;
  font-size: 12px;
  font-family: inherit;
  background: var(--card-bg);
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
}
.chips button.is-active {
  background: var(--brand-green);
  color: #fff;
  border-color: var(--brand-green);
}

/* Lista de títulos */
.series-picker {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
  overflow: auto;
}
.series-group {
  margin-top: 6px;
  font-size: 11px;
  font-weight: 700;
  color: var(--muted);
}
.series-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 6px;
  border-radius: 8px;
  cursor: pointer;
}
.series-item:hover { background: var(--card-bg); }
.series-item small { color: var(--muted); margin-left: auto; font-variant-numeric: tabular-nums; }

/* Gráfico */
.chart-wrap { position: relative; min-height: 520px; }
.chart { width: 100%; height: min(70vh, 640px); }
.empty {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  color: var(--muted);
  font-size: 14px;
}

/* Footer */
.site-footer {
  text-align: center;
  padding: 24px;
  color: var(--muted);
  font-size: 0.78rem;
}

@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr; }
  .panel { position: static; max-height: none; }
  .chart { height: 60vh; }
}