styles.css

:root{
  --bg:#0b0f14;
  --bg-2:#0f1520;
  --panel:#0f1520;
  --panel-2:#121a26;
  --panel-3:#0d1422;
  --muted:#98a6bb;
  --text:#e6edf3;
  --brand:#4f8cff;
  --accent:#22c55e;
  --warn:#f59e0b;
  --danger:#ef4444;
  --border:#223147;
  --chip:#1a2433;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
}

[data-theme="light"]{
  --bg:#f6f7fb;
  --bg-2:#ffffff;
  --panel:#ffffff;
  --panel-2:#f2f5fb;
  --panel-3:#eef2fb;
  --muted:#5d6b82;
  --text:#0d1420;
  --brand:#3b82f6;
  --accent:#16a34a;
  --warn:#d97706;
  --danger:#dc2626;
  --border:#dbe3ef;
  --chip:#e8eefb;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans";
  background:
    radial-gradient(1200px 600px at 20% -10%, rgba(79,140,255,.10), transparent 60%),
    radial-gradient(1000px 600px at 100% 0%, rgba(79,140,255,.08), transparent 55%),
    var(--bg);
  color:var(--text);
  line-height:1.45;
}

.muted{color:var(--muted)}
a{color:inherit;text-decoration:none}
button{font:inherit; color:inherit}
img{max-width:100%;display:block}

.wrapper{margin-left:260px; transition:margin-left .25s ease}
.sidebar{
  position:fixed;left:0;top:0;bottom:0;width:260px;background:var(--panel-2);border-right:1px solid var(--border);
  display:flex;flex-direction:column;justify-content:space-between;box-shadow:var(--shadow)
}
.side-head{display:flex;align-items:center;justify-content:space-between;padding:14px;border-bottom:1px solid var(--border)}
.brand{display:flex;gap:10px;align-items:center}
.brand-badge{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;font-weight:900;color:#0b0f14;
  background: conic-gradient(from 180deg, #4f8cff, #22c55e, #f59e0b, #4f8cff);
  box-shadow:0 6px 18px rgba(79,140,255,.35)
}
.brand-text{display:flex;flex-direction:column;line-height:1}
.menu{padding:8px}
.menu-item{display:flex;gap:10px;align-items:center;padding:10px 12px;border-radius:10px;color:var(--muted)}
.menu-item:hover{background:var(--panel-3);color:var(--text)}
.menu-item.active{background:linear-gradient(180deg, var(--brand), #316cff); color:white}
.side-foot{display:flex;align-items:center;justify-content:space-between;padding:12px;border-top:1px solid var(--border)}

.topbar{
  position:sticky;top:0;z-index:40;background:linear-gradient(180deg, var(--panel), rgba(0,0,0,0));
  border-bottom:1px solid var(--border); backdrop-filter: blur(10px);
  display:flex;align-items:center;gap:12px;padding:12px 16px
}
.search{flex:1;display:flex;align-items:center;gap:8px;background:var(--panel-2);border:1px solid var(--border);padding:8px 12px;border-radius:12px}
.search input{flex:1;border:0;background:transparent;outline:0;color:inherit}
.toolbar{display:flex;align-items:center;gap:10px}
.chip-row{display:flex;gap:8px;flex-wrap:wrap}
.chip{background:var(--chip);border:1px solid var(--border);color:var(--muted);padding:6px 10px;border-radius:999px;cursor:pointer}
.chip.active{color:#fff;background:#1f2b3d;border-color:#2d4264}
.btn{border:1px solid var(--border);background:var(--panel-2);padding:8px 12px;border-radius:10px;cursor:pointer}
.btn.ghost{background:transparent}
.icon-btn{border:1px solid var(--border);background:transparent;border-radius:10px;padding:8px;cursor:pointer;color:var(--muted)}
.icon-btn:hover{color:var(--text);background:var(--panel-2)}

.content{max-width:1300px;margin:0 auto;padding:16px}
.section-title{margin:10px 0 8px 4px;color:var(--muted);font-size:13px;text-transform:uppercase;letter-spacing:.12em}

.kpi-grid{
  display:grid;gap:14px;grid-template-columns:repeat(12,1fr)
}
.kpi{grid-column: span 12}
@media(min-width:620px){ .kpi{grid-column: span 6} }
@media(min-width:980px){ .kpi{grid-column: span 3} }

.card{
  background:linear-gradient(180deg, var(--panel), var(--panel-2));
  border:1px solid var(--border); border-radius:16px; padding:12px; box-shadow: var(--shadow)
}
.card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.kpi-row{display:flex;align-items:center;gap:10px}
.kpi-label{color:var(--muted);font-size:12px}
.kpi-value{font-size:24px;font-weight:800}
.kpi-delta{font-size:12px;margin-top:4px}
.kpi-delta.up{color:var(--accent)}
.kpi-delta.down{color:var(--danger)}

.grid{display:grid;gap:14px;grid-template-columns:repeat(12,1fr);margin-top:6px}

/* Chart boxes com altura estável */
.chart-box{width:100%; height:260px}
.chart-box.lg{height:360px}
.chart-box.md{height:280px}
.chart-box > canvas{width:100% !important; height:100% !important; display:block}

/* Lista de atividades */
.activity{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px;max-height:320px;overflow:auto}
.activity li{
  display:flex;gap:10px;align-items:center;background:var(--panel-3);border:1px solid var(--border);border-radius:10px;padding:8px
}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 8px;border-radius:999px;border:1px solid var(--border);background:var(--panel-2);color:var(--muted);font-size:12px
}

.toast{
  position:fixed;bottom:16px;left:50%;transform:translateX(-50%) translateY(20px);
  background:var(--panel-3);border:1px solid var(--border);padding:10px 14px;border-radius:10px;box-shadow:var(--shadow);opacity:0;pointer-events:none;color:var(--text);
  animation:toast .3s forwards
}
@keyframes toast{to{opacity:1;transform:translateX(-50%) translateY(0)}}

@media(max-width:900px){
  .sidebar{transform:translateX(-100%); transition: transform .25s ease}
  .sidebar.open{transform:translateX(0)}
  .wrapper{margin-left:0}
}