:root{
  --bg:#f6f7fb;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#64748b;
  --border:rgba(15,23,42,.08);
  --shadow:0 10px 30px rgba(15,23,42,.08);
  --radius:14px;
  --pad:16px;
  --blue:#3949ab;
  --red:#d32f2f;
  --green:#2e7d32;
  --amber:#f9a825;
}

*{box-sizing:border-box}

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

/* ================= HEADER ================= */

.header{
  padding:28px 22px 18px;
  background:linear-gradient(120deg,#3949ab,#303f9f);
  color:#fff;
  position:relative;
}
.header h1{margin:0 0 6px;font-size:28px;font-weight:800}
.header p{margin:0;font-size:13px;opacity:.9}

/* ================= UPLOADS ================= */

.uploads{
  display:flex;
  gap:10px;
  align-items:center;
  flex-wrap:wrap;
  padding:12px 16px;
  background:rgba(255,255,255,.75);
  border-bottom:1px solid var(--border);
}

.upload-btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 12px;
  border-radius:999px;
  background:#fff;
  border:1px solid var(--border);
  box-shadow:0 6px 18px rgba(15,23,42,.06);
  cursor:pointer;
  font-size:12px;
  user-select:none;
}
.upload-btn input{display:none}
.status{font-size:12px;color:var(--muted)}

.upload-btn.danger{
  border-color: rgba(211,47,47,.30);
}
.upload-btn.danger:hover{
  background: rgba(211,47,47,.06);
}

/* ================= FILTROS ================= */

.filters{
  display:flex;
  gap:12px;
  padding:10px 16px 0;
  flex-wrap:wrap;
}

.filters label{
  display:flex;
  gap:8px;
  align-items:center;
  font-size:12px;
  color:var(--muted);
}

.filters select{
  padding:6px 10px;
  border-radius:10px;
  border:1px solid var(--border);
  background:#fff;
  font-size:12px;
}

/* ================= KPIs ================= */

.kpis{
  display:grid;
  grid-template-columns:repeat(5,minmax(0,1fr));
  gap:12px;
  padding:12px 16px;
}

.kpis-unit-wrap{padding:0 16px 12px;}
.kpis-unit-title{
  font-size:12px;
  color:var(--muted);
  font-weight:800;
  margin:0 0 8px 2px;
}
.kpis.kpis-unit{
  grid-template-columns:repeat(4,minmax(0,1fr));
  padding:0;
}

.kpis > div{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:12px 14px;
  box-shadow:0 8px 20px rgba(15,23,42,.05);
}

.kpis span{
  display:block;
  font-size:11px;
  color:var(--muted);
  margin-bottom:6px;
}

.kpis strong{
  font-size:18px;
  font-weight:800;
}

.kpi-facturacion{color:var(--blue)}
.kpi-coste{color:var(--red)}
.kpi-beneficio{color:var(--green)}
.kpi-margen-bajo{color:var(--red)}
.kpi-margen-medio{color:var(--amber)}
.kpi-margen-alto{color:var(--green)}

/* ================= CHART ================= */

.chart{
  margin:0 16px 12px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:12px 12px 6px;
  box-shadow:var(--shadow);
  height:320px;
  position:relative;
}

.chart canvas{
  display:block;
  max-width:100%;
  max-height:100%;
}

/* ================= TABLA ================= */

.table{
  margin:0 16px 24px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  overflow:auto;
}

table{
  width:100%;
  border-collapse:collapse;
  min-width:1120px;
}

thead th{
  text-align:left;
  font-size:12px;
  color:var(--muted);
  padding:10px 12px;
  border-bottom:1px solid var(--border);
  background:rgba(248,250,252,.98);
  cursor:pointer;
  user-select:none;
  position:sticky;
  top:0;
  z-index:3;
}

tbody td{
  padding:9px 12px;
  border-bottom:1px solid var(--border);
  font-size:12px;
  vertical-align:middle;
}

td.num{
  font-variant-numeric: tabular-nums;
  white-space:nowrap;
}

td.facturacion{color:var(--blue); font-weight:700}
td.coste{color:var(--red); font-weight:700}
td.beneficio{color:var(--green); font-weight:700}
td.margen-bajo{color:var(--red); font-weight:800}
td.margen-medio{color:var(--amber); font-weight:800}
td.margen-alto{color:var(--green); font-weight:800}

/* % metros */
.meters-pct{
  margin-left:8px;
  padding:2px 8px;
  font-size:10px;
  font-weight:600;
  color:rgba(100,116,139,.95);
  background:rgba(100,116,139,.10);
  border:1px solid rgba(100,116,139,.18);
  border-radius:999px;
  display:inline-flex;
  align-items:center;
  line-height:1.2;
  white-space:nowrap;
  vertical-align:middle;
}
td.metros-cell{white-space:nowrap;}

/* ================= QA (Consultas) ================= */

.qa-answer{
  margin-top:auto;
  padding:14px 16px;
  border-radius:14px;
  background:linear-gradient(180deg,#ffffff 0%,rgba(241,245,249,.95) 100%);
  border:1px solid rgba(15,23,42,.10);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.7);
  font-size:12px;
  line-height:1.55;
  min-height:95px;
  color:rgba(15,23,42,.90);
}

/* ===== BLOQUE DESTACADO (highlight por sección) ===== */

/* Base */
.qa-answer .highlight{
  border-radius: 10px;
  padding: 8px 12px;
  margin-bottom: 10px;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: .2px;
}

/* Rankings (azul) */
#qaRankings .qa-answer .highlight{
  background: linear-gradient(180deg, rgba(57,73,171,.14), rgba(48,63,159,.08));
  border-left: 4px solid #3949ab;
  color: #1f2a6b;
}

/* Diagnóstico (naranja) */
#qaDiag .qa-answer .highlight{
  background: linear-gradient(180deg, rgba(255,152,0,.14), rgba(249,168,37,.08));
  border-left: 4px solid #f59e0b;
  color: #7a3e00;
}

/* Simulaciones (verde) */
#qaSims .qa-answer .highlight{
  background: linear-gradient(180deg, rgba(34,197,94,.14), rgba(22,163,74,.08));
  border-left: 4px solid #16a34a;
  color: #064e3b;
}

/* ===== Botón volver al panel principal ===== */
.btn-back{
  position:absolute;
  left:20px;
  top:50%;
  transform:translateY(-50%);
  color:#ffffff;
  text-decoration:none;
  font-weight:600;
}

.btn-back:hover{
  opacity:.85;
}