:root {
  --bg: #0f172a;
  --bg-card: #1e293b;
  --text: #e2e8f0;
  --text-dim: #94a3b8;
  --green: #22c55e;
  --red: #ef4444;
  --accent: #38bdf8;
  --border: #334155;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  padding-bottom: 70px;
}

header {
  padding: 16px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}
header h1 { margin: 0; font-size: 1.3rem; }

nav.tabs {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  display: flex;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  z-index: 10;
}
.tab-btn {
  flex: 1;
  padding: 10px 4px;
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 0.75rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}
.tab-btn.active { color: var(--accent); }
.tab-btn .icon { font-size: 1.2rem; }

main { padding: 16px; max-width: 480px; margin: 0 auto; }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

section.card {
  background: var(--bg-card);
  border-radius: 12px;
  padding: 14px;
  margin-bottom: 14px;
  border: 1px solid var(--border);
}
section.card h2 { margin: 0 0 10px; font-size: 1rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.5px; }

.summary-grid { display: flex; justify-content: space-between; gap: 8px; margin-bottom: 12px; }
.summary-item { flex: 1; text-align: center; }
.summary-item .label { display: block; font-size: 0.7rem; color: var(--text-dim); }
.summary-item .value { display: block; font-size: 1rem; font-weight: 600; }
.summary-item.receita .value { color: var(--green); }
.summary-item.despesa .value { color: var(--red); }

.cat-bar { margin-bottom: 8px; }
.cat-bar-label { display: flex; justify-content: space-between; font-size: 0.8rem; margin-bottom: 3px; }
.cat-bar-track { background: var(--border); border-radius: 6px; height: 6px; overflow: hidden; }
.cat-bar-fill { background: var(--accent); height: 100%; }

.wallet-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.wallet-card { background: var(--bg); border: 1px solid var(--border); border-radius: 10px; padding: 10px; }
.wallet-label { display: block; font-size: 0.7rem; color: var(--text-dim); }
.wallet-value { display: block; font-size: 1rem; font-weight: 600; margin-top: 2px; }

form { display: flex; flex-direction: column; gap: 10px; }
form label { font-size: 0.8rem; color: var(--text-dim); display: flex; flex-direction: column; gap: 4px; }
input, select {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px;
  border-radius: 8px;
  font-size: 1rem;
}
.type-toggle { display: flex; gap: 8px; }
.type-toggle select { flex: 1; }

button[type="submit"], .btn {
  background: var(--accent);
  color: #0f172a;
  border: none;
  padding: 12px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
}

ul.list { list-style: none; margin: 0; padding: 0; }
.row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.row:last-child { border-bottom: none; }
.row-main { flex: 1; display: flex; flex-direction: column; }
.row-title { font-size: 0.9rem; }
.row-sub { font-size: 0.75rem; color: var(--text-dim); }
.row-amount { font-weight: 600; white-space: nowrap; }
.row-amount.receita { color: var(--green); }
.row-amount.despesa { color: var(--red); }
.row-del { background: none; border: none; color: var(--text-dim); font-size: 1rem; padding: 4px; }

.empty { color: var(--text-dim); font-size: 0.85rem; text-align: center; padding: 16px 0; }

.hint { font-size: 0.75rem; color: var(--text-dim); margin-top: 8px; }

.hidden { display: none !important; }

.form-actions { display: flex; gap: 8px; }
.form-actions button { flex: 1; }
.btn-secondary {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 12px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
}

.row-main { cursor: pointer; }

.badge {
  font-size: 0.65rem;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 4px;
  padding: 1px 4px;
  margin-left: 4px;
}

.filters { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.filters input, .filters select { flex: 1; min-width: 100px; padding: 8px; font-size: 0.8rem; }

.budget-row { margin-bottom: 12px; }
.budget-row-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; margin-bottom: 4px; font-size: 0.85rem; }
.budget-input { width: 100px; padding: 6px 8px; font-size: 0.8rem; text-align: right; }
.budget-row-sub { font-size: 0.7rem; color: var(--text-dim); margin-top: 3px; }
.budget-row-sub.over-text { color: var(--red); }
.cat-bar-fill.over { background: var(--red); }

.evo-svg { width: 100%; height: auto; }
.evo-line { stroke: var(--accent); stroke-width: 2; }
.evo-zero { stroke: var(--border); stroke-width: 1; stroke-dasharray: 3 3; }
.evo-dot-pos { fill: var(--green); }
.evo-dot-neg { fill: var(--red); }
.evo-label { fill: var(--text-dim); font-size: 7px; }