:root {
  /* chrome — dark, warm near-black + gold, inspired by premium banking UI */
  --bg: #0d0d0d;               /* page plane */
  --panel: #1a1a19;            /* card / chart surface */
  --panel-2: #232321;          /* inputs, tracks */
  --border: #2c2c2a;           /* hairline */
  --text: #ffffff;             /* primary ink */
  --text-dim: #c3c2b7;         /* secondary ink */
  --text-muted: #898781;       /* axis / labels */

  --gold: #d4af37;             /* brand accent */
  --gold-strong: #e8c766;
  --gold-ink: #14140f;         /* text on gold */

  --good: #0ca30c;
  --warning: #fab219;
  --critical: #d03b3b;

  /* categorical chart palette — fixed order, validated CVD-safe on this dark surface */
  --series-0: #3987e5; /* blue */
  --series-1: #d95926; /* orange */
  --series-2: #199e70; /* aqua */
  --series-3: #c98500; /* yellow */
  --series-4: #d55181; /* magenta */
  --series-5: #008300; /* green */
  --series-6: #9085e9; /* violet */
  --series-7: #e66767; /* red */
  --series-8: #6b6b68; /* "outras" overflow bucket */

  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

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

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 20px 16px 40px;
}

/* ---------- nav ---------- */

nav.topnav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.wordmark {
  font-family: Georgia, "Iowan Old Style", "Times New Roman", serif;
  font-size: 19px;
  letter-spacing: 0.04em;
  color: var(--text);
  margin-right: 32px;
}
.wordmark span { color: var(--gold); }

nav.topnav .nav-left { display: flex; align-items: center; }
nav.topnav .links { display: flex; gap: 28px; }
nav.topnav .links a {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
}
nav.topnav .links a.active { color: var(--text); border-bottom-color: var(--gold); }

nav.topnav form { margin: 0; }
nav.topnav button.link-btn {
  background: none; border: none; color: var(--text-muted); cursor: pointer; font: inherit;
  font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase;
}
nav.topnav button.link-btn:hover { color: var(--text); }

/* ---------- cards / layout ---------- */

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}

h1, h2, h3 { margin-top: 0; }
h2 { font-size: 20px; letter-spacing: 0.01em; }
h3 {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 700;
}

.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 50% 0%, #17140a 0%, var(--bg) 60%);
}

.login-box {
  width: 340px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  text-align: center;
}
.login-box .wordmark { margin: 0 0 24px; font-size: 24px; display: block; }

/* ---------- forms ---------- */

input, select, button { font: inherit; }

input[type="text"], input[type="password"], input[type="number"], input[type="date"], input[type="month"], select {
  width: 100%;
  padding: 10px 12px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  margin-top: 4px;
  margin-bottom: 12px;
}
input:focus, select:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.15);
}

label { font-size: 12px; color: var(--text-muted); letter-spacing: 0.03em; }

button, .btn {
  display: inline-block;
  background: var(--gold);
  color: var(--gold-ink);
  border: none;
  border-radius: 8px;
  padding: 10px 18px;
  cursor: pointer;
  font-weight: 700;
  letter-spacing: 0.02em;
}
button:hover { background: var(--gold-strong); }

button.secondary { background: var(--panel-2); border: 1px solid var(--border); color: var(--text); }
button.secondary:hover { border-color: var(--text-muted); background: var(--panel-2); }
button.danger { background: var(--critical); color: #fff; }
button.danger:hover { background: #e04f4f; }
button.small { padding: 6px 12px; font-size: 13px; }

.error-msg { color: var(--critical); margin-bottom: 12px; font-size: 14px; }

/* ---------- table ---------- */

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 12px 10px; border-bottom: 1px solid var(--border); font-size: 14px; }
th { color: var(--text-muted); font-weight: 600; font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase; }
td.amount { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
.badge {
  display: inline-block;
  font-size: 11px;
  padding: 2px 7px;
  border-radius: 999px;
  background: var(--panel-2);
  color: var(--text-muted);
  margin-left: 6px;
  border: 1px solid var(--border);
}

.filters { display: flex; gap: 12px; align-items: end; margin-bottom: 16px; flex-wrap: wrap; }
.filters > div { display: flex; flex-direction: column; }
.filters input, .filters select { margin-bottom: 0; }

.actions-row { display: flex; gap: 6px; justify-content: flex-end; }

/* ---------- stat tiles (big numbers) ---------- */

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 20px;
}
.stat-tile { background: var(--panel); padding: 20px; }
.stat-tile .stat-label {
  font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--text-muted); margin-bottom: 8px;
}
.stat-tile .stat-value {
  font-size: 28px; font-weight: 700; color: var(--text); line-height: 1.1;
  font-variant-numeric: tabular-nums;
}
.stat-tile .stat-value.gold { color: var(--gold); }
.stat-tile .stat-sub { margin-top: 6px; font-size: 13px; color: var(--text-muted); }
.stat-delta { font-weight: 700; }
.stat-delta.up { color: var(--critical); }
.stat-delta.down { color: var(--good); }
.stat-delta.flat { color: var(--text-muted); }

@media (max-width: 720px) {
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ---------- category bar chart ---------- */

.bar-row { margin-bottom: 14px; }
.bar-row .bar-label { display: flex; align-items: center; gap: 8px; font-size: 13px; margin-bottom: 6px; }
.bar-row .swatch { width: 9px; height: 9px; border-radius: 2px; flex-shrink: 0; }
.bar-row .bar-name { flex: 1; color: var(--text); }
.bar-row .bar-amount { color: var(--text-muted); font-variant-numeric: tabular-nums; white-space: nowrap; }
.bar-track { background: var(--panel-2); border-radius: 6px; overflow: hidden; height: 10px; position: relative; }
.bar-fill { height: 100%; border-radius: 6px; }

/* ---------- trend chart (SVG) ---------- */

.chart-wrap { position: relative; }
.trend-svg { width: 100%; height: 200px; display: block; overflow: visible; }
.trend-svg .grid-line { stroke: var(--border); stroke-width: 1; }
.trend-svg .axis-label { fill: var(--text-muted); font-size: 11px; }
.trend-svg .bar {
  fill: var(--gold);
  opacity: 0.85;
  cursor: pointer;
  transition: opacity 0.1s ease;
}
.trend-svg .bar:hover, .trend-svg .bar.active { opacity: 1; fill: var(--gold-strong); }
.trend-svg .bar-value { fill: var(--text-dim); font-size: 11px; font-variant-numeric: tabular-nums; }

.chart-tooltip {
  position: fixed;
  pointer-events: none;
  background: #050505;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 12px;
  color: var(--text);
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.08s ease;
  z-index: 1000;
}
.chart-tooltip.visible { opacity: 1; }
.chart-tooltip .tt-label { color: var(--text-muted); margin-bottom: 2px; }
.chart-tooltip .tt-value { font-weight: 700; font-variant-numeric: tabular-nums; }

/* ---------- summary (legacy total, kept for compatibility) ---------- */

.summary-total { font-size: 32px; font-weight: 700; margin: 4px 0 16px; color: var(--gold); }

/* ---------- modal ---------- */

.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,0.7);
  display: flex; align-items: center; justify-content: center;
  z-index: 50;
}
.modal-box {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; width: 380px; max-width: 90vw; max-height: 85vh; overflow-y: auto;
}
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 8px; }
.hidden { display: none !important; }

.top-actions { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }

.category-row { display: flex; align-items: center; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid var(--border); }
.category-row:last-child { border-bottom: none; }

.text-dim { color: var(--text-dim); font-size: 13px; }
.text-muted { color: var(--text-muted); font-size: 12px; }