:root{
  --bg1:#e8f7ff;
  --bg2:#dff3d8;
  --card:#ffffff;
  --text:#0f172a;
  --muted:rgba(15,23,42,.72);
  --line:rgba(15,23,42,.10);
  --shadow: 0 12px 30px rgba(15,23,42,.10);
  --radius:18px;

  --primary:#1f6feb;
  --primary2:#0ea5e9;

  --danger:#dc2626;
  --success:#16a34a;

  /* Charts */
  --chart-h: 320px;
  --chart-h-mobile: 240px;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color:var(--text);
  background: linear-gradient(135deg, var(--bg1) 0%, var(--bg2) 100%);
}

.container{
  width:min(1200px, calc(100% - 24px));
  margin: 0 auto;
  padding: 14px 0 24px;
}

.card{
  background:var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px;
}

h1{ margin:0; font-size: 1.25rem; font-weight: 950; }
h2{ margin:0; font-size: 1.05rem; font-weight: 950; }

.small{ color: var(--muted); font-size: .92rem; }
.badge{
  display:inline-flex;
  padding: 6px 10px;
  border-radius: 999px;
  font-weight: 900;
  background: rgba(15,23,42,.06);
}

.actions{
  display:flex;
  gap:10px;
  align-items:center;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding: 10px 14px;
  border-radius: 12px;
  border: 0;
  cursor:pointer;
  font-weight: 900;
  color: #fff;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary2) 100%);
  text-decoration:none;
  white-space:nowrap;
}
.btn:hover{ filter:brightness(1.03); }
.btn.secondary{
  background: rgba(15,23,42,.06);
  color: var(--text);
  border: 1px solid var(--line);
}
.btn.danger{
  background: rgba(220,38,38,.12);
  border: 1px solid rgba(220,38,38,.25);
  color: var(--danger);
}

label{ display:block; font-weight: 900; margin-top: 6px; }
input, select, textarea{
  width:100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 12px;
  outline: none;
  background: #fff;
}
textarea{ resize: vertical; }

.row{
  display:flex;
  flex-wrap:wrap;
  gap: 12px;
}
[class^="col-"]{ flex: 1 1 auto; }
.col-12{ flex-basis: 100%; }
.col-9{ flex-basis: 74%; }
.col-8{ flex-basis: 66%; }
.col-6{ flex-basis: 49%; }
.col-5{ flex-basis: 41%; }
.col-4{ flex-basis: 32%; }
.col-3{ flex-basis: 24%; }
.col-2{ flex-basis: 15%; }

.table-wrap{
  width:100%;
  overflow:auto;
  border-radius: 14px;
  border:1px solid var(--line);
}

/* =========================
   Charts (evita tamanho infinito / travamentos)
   ========================= */
.chart-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:12px;
  margin-top:10px;
}

.chart-box{
  width:100%;
  max-width:100%;
  height: var(--chart-h);
  min-height: var(--chart-h);
  max-height: var(--chart-h);
  position:relative;
  overflow:hidden;
}

.chart-box canvas{
  width:100% !important;
  height:100% !important;
  max-height: var(--chart-h) !important;
}
table{
  width:100%;
  border-collapse: collapse;
  font-size: .95rem;
}
thead th{
  text-align:left;
  padding: 10px 12px;
  background: rgba(15,23,42,.04);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
}
tbody td{
  padding: 10px 12px;
  border-bottom: 1px solid rgba(15,23,42,.06);
}
tbody tr:hover{ background: rgba(15,23,42,.03); }

@media (max-width: 900px){
  .col-9,.col-8,.col-6,.col-5,.col-4,.col-3,.col-2{ flex-basis:100%; }
  .actions{ flex-wrap:wrap; }

  .chart-grid{ grid-template-columns: 1fr; }
  .chart-box{ height: var(--chart-h-mobile); min-height: var(--chart-h-mobile); max-height: var(--chart-h-mobile); }
  .chart-box canvas{ max-height: var(--chart-h-mobile) !important; }
}
/* Linhas alternadas */
.table-striped tbody tr:nth-child(odd) {
    background-color: #ffffff;
}

.table-striped tbody tr:nth-child(even) {
    background-color: #f9fafb;
}

/* Linha de alerta de vencimento */
.table-striped tbody tr.alerta-vencimento {
    background-color: #ffe5e5 !important;
}