/* ============================================================
   Axion · Control de Inventario — estilos
   Paleta y layout del diseño aprobado (design-reference / v4):
   violeta sobre navy-índigo profundo, oro-crema para acentos.
   ============================================================ */
:root{
  --bg:#0F0D1C;
  --surface:#1A1730;
  --surface-2:#1E1A37;
  --elev:#252040;
  --line:rgba(255,255,255,.07);
  --line-2:rgba(139,92,246,.26);
  --violet:#8B5CF6;
  --violet-2:#A78BFA;
  --violet-deep:#6D40D4;
  --gold:#E6C271;
  --gold-2:#F0D89A;
  --text:#ECE9F6;
  --muted:#9A92B5;
  --faint:#6E6790;
  --green:#34D399;
  --amber:#FBBF24;
  --red:#F87171;
  --r:18px;
  --shadow:0 24px 48px -24px rgba(0,0,0,.65);
  --hi:inset 0 1px 0 rgba(255,255,255,.06);
}

*{box-sizing:border-box;margin:0;padding:0}

body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif;
  color:var(--text);
  background:
    radial-gradient(1200px 680px at 80% -12%, rgba(139,92,246,.20), transparent 56%),
    radial-gradient(900px 560px at 6% 108%, rgba(167,139,250,.10), transparent 55%),
    radial-gradient(700px 500px at 50% 50%, rgba(109,64,212,.05), transparent 70%),
    var(--bg);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
}

.app{display:flex;min-height:100vh}

/* ===== Sidebar ===== */
.side{
  width:236px;flex-shrink:0;padding:24px 16px;display:flex;flex-direction:column;gap:3px;
  border-right:1px solid var(--line);position:sticky;top:0;height:100vh;
}
.brand{display:flex;align-items:center;gap:12px;padding:4px 8px 26px}
.brand .logo{
  width:40px;height:40px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(135deg,var(--violet-2),var(--violet-deep));
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:20px;color:#fff;
  box-shadow:0 8px 24px rgba(139,92,246,.45);
}
.brand .name{font-weight:700;font-size:15.5px}
.brand .sub{font-size:11px;color:var(--muted);margin-top:1px}
.nlabel{font-size:10px;font-weight:600;letter-spacing:1px;color:var(--faint);text-transform:uppercase;padding:14px 12px 7px}
.nav a{
  display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:11px;
  color:var(--muted);text-decoration:none;font-size:13.5px;font-weight:500;transition:.15s;
}
.nav a svg{width:17px;height:17px;stroke-width:1.8}
.nav a:hover{background:var(--surface);color:var(--text)}
.nav a.active{
  background:linear-gradient(135deg,rgba(139,92,246,.28),rgba(167,139,250,.12));
  color:#fff;font-weight:600;box-shadow:inset 0 0 0 1px var(--line-2);
}
.side .pro{
  margin-top:auto;padding:16px;border-radius:14px;text-align:center;
  background:linear-gradient(160deg,rgba(139,92,246,.20),rgba(167,139,250,.06));
  border:1px solid var(--line-2);
}
.side .pro p{font-size:12px;color:var(--muted);margin-bottom:11px;line-height:1.5}
.side .pro button{
  width:100%;padding:9px;border:0;border-radius:9px;cursor:pointer;
  background:linear-gradient(135deg,var(--violet),var(--violet-deep));
  color:#fff;font-weight:600;font-size:12.5px;font-family:inherit;transition:.15s;
}
.side .pro button:hover{filter:brightness(1.08)}
/* En modo "datos reales" la tarjeta pro confirma la conexión */
.app.is-live .side .pro{background:linear-gradient(160deg,rgba(52,211,153,.18),rgba(52,211,153,.04));border-color:rgba(52,211,153,.3)}

/* ===== Contenido ===== */
.main{flex:1;min-width:0;padding:26px 32px 44px}
.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;gap:20px;flex-wrap:wrap}
.topbar h1{font-size:24px;font-weight:700;letter-spacing:-.4px}
.topbar .crumb{font-size:13px;color:var(--muted);margin-top:5px}
.tb-right{display:flex;align-items:center;gap:11px}
.pill{
  display:inline-flex;align-items:center;gap:7px;padding:8px 14px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);font-size:12.5px;color:var(--muted);white-space:nowrap;
}
.pill .dot{width:7px;height:7px;border-radius:50%;background:var(--gold);box-shadow:0 0 8px var(--gold)}
.app.is-live .pill .dot{background:var(--green);box-shadow:0 0 8px var(--green)}
.btn{
  padding:8px 16px;border-radius:10px;border:0;cursor:pointer;font-family:inherit;font-weight:600;font-size:12.5px;
  background:linear-gradient(135deg,var(--violet),var(--violet-deep));color:#fff;box-shadow:0 6px 18px rgba(139,92,246,.38);transition:.15s;
}
.btn:hover{filter:brightness(1.08)}

.card{
  background:linear-gradient(180deg,var(--surface),var(--surface-2));
  border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow),var(--hi);
}

/* ===== KPIs ===== */
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:18px}
.kpi{padding:20px;position:relative;overflow:hidden}
.kpi.hero{
  background:
    radial-gradient(120% 100% at 100% 0%, rgba(255,255,255,.16), transparent 50%),
    linear-gradient(135deg,#9B6BFF,#7C3FE6 55%,#5B2FBE);
  border:0;box-shadow:0 18px 44px -14px rgba(139,92,246,.55),var(--hi);
}
.kpi.hero .name,.kpi.hero .ctx{color:rgba(255,255,255,.78)}
.kpi.hero .ico{background:rgba(255,255,255,.18);color:#fff}
.kpi.hero .delta{background:rgba(255,255,255,.2);color:#fff}
.kpi .top{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;min-height:40px}
.kpi .ico{
  width:40px;height:40px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  background:rgba(139,92,246,.18);color:var(--violet-2);
}
.kpi .ico.ico--amber{background:rgba(251,191,36,.16);color:var(--amber)}
.kpi .ico svg{width:20px;height:20px;stroke-width:1.9}
.delta{font-size:11.5px;font-weight:600;display:inline-flex;align-items:center;gap:3px;padding:4px 9px;border-radius:99px}
.delta:empty{display:none}
.delta.up{color:var(--green);background:rgba(52,211,153,.14)}
.delta.down{color:var(--red);background:rgba(248,113,113,.14)}
.delta.warn{color:var(--amber);background:rgba(251,191,36,.14)}
.delta.flat{color:var(--muted);background:rgba(154,146,181,.14)}
.kpi .val{font-size:29px;font-weight:800;letter-spacing:-.6px;line-height:1;margin-bottom:7px}
.kpi .name{font-size:12.5px;color:var(--muted);font-weight:500}
.kpi .ctx{font-size:11px;color:var(--faint);margin-top:3px}

/* ===== Filas / paneles ===== */
.row{display:grid;gap:18px;margin-bottom:18px}
.row.charts{grid-template-columns:1.55fr 1fr}
.row.mid{grid-template-columns:1fr 1.4fr}
.row.bot{grid-template-columns:1fr 1fr}
.panel{padding:22px}
.phead{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:18px;gap:12px}
.phead .pt{font-size:15px;font-weight:600}
.phead .ps{font-size:11.5px;color:var(--muted);margin-top:3px}
.badge{font-size:11px;font-weight:600;padding:5px 11px;border-radius:99px;background:rgba(248,113,113,.16);color:#FCA5A5;white-space:nowrap}

.chart-lg{position:relative;height:280px}
.chart-md{position:relative;height:280px}
.chart-sm{position:relative;height:240px}

/* ===== Anillo de salud ===== */
.ring-stat{display:flex;flex-direction:column;align-items:center}
.ring-wrap{position:relative;width:180px;height:180px;margin:6px 0 18px}
.ring-center{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center}
.ring-center .big{font-size:36px;font-weight:800;letter-spacing:-1px}
.ring-center .lbl{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.6px;margin-top:3px}
.ring-legend{display:flex;gap:18px;width:100%;justify-content:center;flex-wrap:wrap}
.leg{text-align:center}
.leg .dotc{width:8px;height:8px;border-radius:3px;display:inline-block;margin-right:5px}
.leg .lt{font-size:11px;color:var(--muted)}
.leg .lv{font-size:18px;font-weight:800;margin-top:3px}

/* ===== Reorden prioritario ===== */
.relist{display:flex;flex-direction:column;gap:9px;max-height:300px;overflow-y:auto;padding-right:4px}
.reitem{display:flex;align-items:center;gap:13px;padding:12px 14px;border-radius:12px;background:var(--elev);border:1px solid var(--line)}
.reitem .acc{width:3px;height:34px;border-radius:99px;flex-shrink:0}
.reitem .meta{flex:1;min-width:0}
.reitem .nm{font-size:13px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.reitem .sk{font-size:11px;color:var(--faint);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.reitem .qty{text-align:right;flex-shrink:0}
.reitem .qty b{font-size:16px;font-weight:800}
.reitem .qty small{display:block;font-size:9px;color:var(--muted);text-transform:uppercase;letter-spacing:.4px}
.tag{
  font-size:9px;font-weight:700;padding:4px 8px;border-radius:7px;text-transform:uppercase;letter-spacing:.4px;flex-shrink:0;
  background:rgba(248,113,113,.18);color:#FCA5A5;
}
.relist__empty{padding:18px 14px;border-radius:12px;background:var(--elev);border:1px solid var(--line);font-size:13px;color:var(--muted)}
.relist__empty strong{color:var(--green)}
.relist::-webkit-scrollbar{width:6px}
.relist::-webkit-scrollbar-thumb{background:rgba(139,92,246,.35);border-radius:99px}

/* ===== Tabla de críticos ===== */
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse}
th{
  text-align:left;font-size:10.5px;font-weight:600;color:var(--faint);text-transform:uppercase;letter-spacing:.5px;
  padding:0 0 13px;border-bottom:1px solid var(--line);white-space:nowrap;
}
td{padding:13px 0;border-bottom:1px solid var(--line);font-size:12.5px}
th.num,td.num{text-align:right;font-variant-numeric:tabular-nums}
tr:last-child td{border-bottom:0}
.sku{color:var(--muted);font-size:11.5px;white-space:nowrap}
.st{font-size:10.5px;font-weight:600;padding:4px 10px;border-radius:99px;display:inline-flex;align-items:center;gap:5px}
.st.ok{background:rgba(52,211,153,.14);color:#6EE7B7}
.st.low{background:rgba(251,191,36,.14);color:#FCD34D}
.st.out{background:rgba(248,113,113,.16);color:#FCA5A5}
.st .d{width:6px;height:6px;border-radius:50%;background:currentColor}
.crit__empty{padding:18px 0;font-size:13px;color:var(--muted)}

/* ===== Pie ===== */
.page__foot{margin-top:8px;padding-top:18px;font-size:11px;color:var(--faint);text-align:center}

/* ===== Overlay de carga / error ===== */
.loading{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(15,13,28,.72);backdrop-filter:blur(2px);z-index:50}
.loading[hidden]{display:none}
.loading__spinner{
  width:42px;height:42px;border-radius:50%;border:3px solid rgba(139,92,246,.22);border-top-color:var(--violet);
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
.error-banner{
  position:fixed;left:50%;bottom:22px;transform:translateX(-50%);max-width:90vw;z-index:60;
  background:rgba(248,113,113,.14);border:1px solid rgba(248,113,113,.4);color:#FCA5A5;
  padding:11px 18px;border-radius:12px;font-size:12.5px;box-shadow:var(--shadow);
}
.error-banner[hidden]{display:none}

/* ===== Responsive ===== */
@media(max-width:1150px){
  .side{display:none}
  .kpis{grid-template-columns:repeat(2,1fr)}
  .row.charts,.row.mid,.row.bot{grid-template-columns:1fr}
}
@media(max-width:560px){
  .main{padding:20px 16px 36px}
  .kpis{grid-template-columns:1fr}
}