/* ===========================================================================
   NexusCorePlus — Panel SaaS · sistema visual replicado de NexusCore Manager
   (paleta, degradados 3D, sombras suaves, filas-tarjeta)
   =========================================================================== */
:root{
  --bg:#F5F8FC; --card:#FFFFFF; --card-soft:#F8FBFF; --line:#D7E4F2;
  --ink:#17212F; --muted:#526173;
  --accent:#2563EB; --accent-2:#123B8F; --accent-soft:#EAF3FF; --accent-line:#A7D0FF;
  --ok:#23845B; --ok-soft:#E6F6EE; --off:#9AA7B5;
  --warn:#B7791F; --warn-soft:#FBEFD6; --crit:#B9413A; --crit-soft:#FBE7E5;
  --grad-logo:linear-gradient(135deg,#7DBBFF,#2563EB 55%,#123B8F);
  --grad-icon:linear-gradient(135deg,#FFFFFF,#E6F1FF 50%,#A8CCFF);
  --grad-accent:linear-gradient(135deg,#3B82F6,#1D4ED8);
  --grad-fuel:linear-gradient(#A6D5FF,#2F86F6);
  --grad-tank:linear-gradient(#FFFFFF,#EAF2FD 52%,#C8DAF2);
  --shadow-soft:0 2px 10px rgba(15,35,66,.08);
  --shadow-card:0 1px 2px rgba(15,35,66,.06),0 10px 26px rgba(15,35,66,.10);
  --radius:14px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:'Segoe UI',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--ink);font-size:14px;-webkit-font-smoothing:antialiased}
.hidden{display:none!important}
.muted{color:var(--muted)}
.err{color:var(--crit);font-size:13px;min-height:18px;margin:4px 0}
.ok-msg{color:var(--ok);font-size:13px;min-height:18px;margin:4px 0}
a.link{color:var(--accent);cursor:pointer;text-decoration:none;font-weight:600}
button{font-family:inherit}

/* ---------- LOGIN ---------- */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:radial-gradient(1200px 600px at 20% -10%,#2F86F6,#0B3C91)}
.login-card{background:#fff;border-radius:20px;box-shadow:0 30px 80px rgba(8,24,52,.35);width:404px;padding:38px 34px}
.login-brand{text-align:center;margin-bottom:22px}
.brand-mark{width:38px;height:38px;display:block;flex:none}
.brand-mark-lg{width:74px;height:74px;margin:0 auto;display:block;filter:drop-shadow(0 12px 24px rgba(11,60,145,.42))}
.login-brand h1{margin:14px 0 2px;font-size:25px;letter-spacing:-.4px}
.login-brand p{margin:0;color:var(--muted);font-size:13px}
.login-form label{display:block;font-weight:600;font-size:12.5px;color:#334E68;margin:14px 0 6px}
.login-form input,.login-form select{width:100%;height:44px;border:1.4px solid var(--line);border-radius:10px;padding:0 12px;font-size:14px;background:var(--card-soft)}
.login-form input:focus,.login-form select:focus{outline:none;border-color:var(--accent);background:#fff}
.pwd{position:relative}
.pwd .eye{position:absolute;right:6px;top:6px;height:32px;width:34px;border:0;background:transparent;cursor:pointer;font-size:16px;opacity:.6}
.btn-primary{margin-top:18px;width:100%;height:46px;border:0;border-radius:10px;color:#fff;font-size:15px;font-weight:600;cursor:pointer;background:var(--grad-accent);box-shadow:0 8px 20px rgba(37,99,235,.35)}
.btn-primary:hover{filter:brightness(1.05)}
.login-switch{text-align:center;margin-top:14px;font-size:13px}

/* ---------- APP SHELL ---------- */
.app{display:grid;grid-template-columns:236px 1fr;grid-template-rows:62px 1fr;height:100vh;grid-template-areas:"side top" "side main"}
.sidebar{grid-area:side;background:#FAFCFF;border-right:1px solid var(--line);display:flex;flex-direction:column;overflow-y:auto}
.topbar{grid-area:top;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:14px;padding:0 22px;z-index:5;box-shadow:var(--shadow-soft)}
.main{grid-area:main;overflow-y:auto;padding:24px 26px}

.brand{display:flex;align-items:center;gap:12px;padding:18px 16px 14px}
.brand .name{font-weight:800;letter-spacing:-.3px;font-size:17px}
.brand .name small{display:block;font-weight:600;color:var(--muted);font-size:10px;letter-spacing:1px}

.nav{padding:8px 12px;display:flex;flex-direction:column;gap:3px}
.nav .group{font-size:10px;font-weight:800;color:var(--muted);text-transform:uppercase;letter-spacing:.8px;padding:16px 10px 6px;opacity:.8}
.nav a{display:flex;align-items:center;gap:11px;padding:7px 10px;border-radius:11px;color:#2c3b4e;font-weight:600;cursor:pointer;font-size:13.5px}
.nav a .ic{width:32px;height:32px;flex:none;display:flex;align-items:center;justify-content:center;font-size:15px;
  background:var(--grad-icon);border-radius:10px;box-shadow:var(--shadow-soft);border:1px solid #DCEAFB}
.nav a:hover{background:var(--accent-soft)}
.nav a.active{background:var(--accent-soft);color:var(--accent-2)}
.nav a.active .ic{background:var(--grad-accent);box-shadow:0 6px 14px rgba(37,99,235,.4);border-color:transparent}
.nav a .badge-num{margin-left:auto;background:var(--crit);color:#fff;font-size:11px;font-weight:700;border-radius:20px;padding:1px 7px}

/* ---------- TOPBAR ---------- */
.topbar .pagetitle{font-weight:800;font-size:19px;letter-spacing:-.3px}
.topbar .spacer{flex:1}
.topbar .site-select{height:38px;border:1.3px solid var(--line);border-radius:10px;padding:0 10px;background:var(--card-soft);font-weight:600;color:#334E68}
.icon-btn{width:40px;height:40px;border-radius:11px;border:1px solid var(--line);background:#fff;cursor:pointer;font-size:16px;color:#334E68}
.icon-btn:hover{background:var(--accent-soft);border-color:var(--accent-line)}
.live{font-size:12px;font-weight:700;padding:6px 11px;border-radius:20px}
.live.on{background:var(--ok-soft);color:var(--ok)} .live.off{background:var(--crit-soft);color:var(--crit)}
.badge{display:inline-block;padding:6px 12px;border-radius:20px;font-size:12px;font-weight:800;background:var(--accent-soft);color:var(--accent-2);letter-spacing:.3px}
.userchip{display:flex;align-items:center;gap:9px;padding:5px 8px;border-radius:11px;cursor:pointer}
.userchip:hover{background:var(--accent-soft)}
.userchip .avatar{width:34px;height:34px;border-radius:50%;background:var(--grad-logo);color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center;font-size:13px;box-shadow:var(--shadow-soft)}

/* ---------- VIEW / CARDS ---------- */
.view-head{display:flex;align-items:center;gap:12px;margin-bottom:18px;flex-wrap:wrap}
.view-head h1{margin:0;font-size:22px;letter-spacing:-.4px}
.view-head .spacer{flex:1}
/* Cabecera y formulario estilo NexusCore Manager */
.page-head{display:flex;align-items:flex-start;gap:12px;margin-bottom:16px}
.page-head h1{margin:0 0 2px;font-size:23px;font-weight:800;letter-spacing:-.4px}
.page-head .spacer{flex:1}
.formgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:6px 16px;margin-bottom:6px}
.formgrid.cols2{grid-template-columns:repeat(2,1fr)}
.formgrid.cols3{grid-template-columns:repeat(3,1fr)}
.formgrid.cols4{grid-template-columns:repeat(4,1fr)}
@media(max-width:1000px){.formgrid.cols2,.formgrid.cols3,.formgrid.cols4{grid-template-columns:repeat(2,1fr)}}
.formgrid .field{margin-bottom:8px}
/* Cabecera de página con subtítulo (estilo NexusCoreManager) */
.pagehead-col{display:flex;flex-direction:column;justify-content:center;min-width:0}
.pagesub{font-size:12px;color:var(--muted);margin-top:1px}
/* Pestañas de instalación (multi-sede) */
.insttabs{display:flex;flex-wrap:wrap;gap:6px;background:#F2F7FF;border:1px solid #D6E4F5;border-radius:10px;padding:6px;margin-bottom:12px}
.insttab{border:1px solid transparent;background:transparent;border-radius:8px;padding:7px 14px;font-size:13px;font-weight:600;color:var(--muted);cursor:pointer}
.insttab:hover{background:#E4EFFF}
.insttab.active{background:#fff;border-color:var(--accent-line);color:var(--ink);box-shadow:var(--shadow-soft)}
.insttab.add{color:var(--accent);font-weight:700}
/* Muestras de color de producto (réplica desktop) */
.swatch{width:28px;height:28px;border-radius:50%;border:2px solid #C7D3E2;cursor:pointer;padding:0}
.swatch:hover{border-color:var(--accent);transform:scale(1.08)}
/* Tarjetas de depósito (Existencias) */
.tankcards{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px}
.tankcard{border:1px solid var(--line);border-radius:12px;padding:12px;background:#fff;box-shadow:var(--shadow-soft)}
.tankcard .tk-top{display:flex;align-items:center;gap:8px;font-size:13.5px}
.tankcard .tk-dot{width:12px;height:12px;border-radius:50%;border:1px solid #9FB2CC}
.tankcard .tk-bar{height:10px;border-radius:6px;background:#EEF3F9;margin:10px 0 6px;overflow:hidden}
.tankcard .tk-fill{height:100%;border-radius:6px;transition:width .3s}
.tankcard .tk-meta{display:flex;justify-content:space-between;font-size:12.5px;font-weight:700}
.clickrow.rowsel td{background:#DCEBFF}
.btnrow{display:flex;flex-wrap:wrap;gap:9px;margin-top:8px}
.alarmbox{background:var(--card-soft);border:1px solid #DCE8FA;border-radius:12px;padding:12px 14px}
.alarmbox .top{display:flex;align-items:center;justify-content:space-between;font-weight:700;font-size:13px}
.alarmbox input[type=range]{width:100%;margin-top:10px;accent-color:var(--accent)}
.alarmbox .pct{font-weight:800;font-size:14px}

.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:22px}
.kpi{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;box-shadow:var(--shadow-card);display:flex;align-items:center;gap:14px}
.kpi .kpi-ic{width:46px;height:46px;flex:none;display:flex;align-items:center;justify-content:center;font-size:21px;border-radius:13px;background:var(--grad-icon);box-shadow:var(--shadow-soft);border:1px solid #DCEAFB}
.kpi .lbl{color:var(--muted);font-size:11.5px;font-weight:700;text-transform:uppercase;letter-spacing:.4px}
.kpi .val{font-size:25px;font-weight:800;margin-top:3px;letter-spacing:-.5px;line-height:1.1}
.kpi .val small{font-size:14px;font-weight:600;color:var(--muted)}

.grid2{display:grid;grid-template-columns:2fr 1fr;gap:18px;margin-bottom:18px}
.grid-2eq{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:18px}
@media(max-width:1100px){.grid2,.grid-2eq{grid-template-columns:1fr}}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-card)}
.panel h2{margin:0 0 16px;font-size:15px;display:flex;align-items:center;gap:8px;font-weight:800;letter-spacing:-.2px}
.panel h2 small{font-weight:500;color:var(--muted);letter-spacing:0}

.range{display:inline-flex;background:#EAF1FA;border-radius:11px;padding:3px;gap:2px}
.range button{border:0;background:transparent;padding:6px 12px;border-radius:8px;font-weight:600;font-size:12.5px;color:#334E68;cursor:pointer}
.range button.active{background:#fff;color:var(--accent-2);box-shadow:var(--shadow-soft)}

/* toolbar */
.toolbar{display:flex;gap:10px;align-items:center;margin-bottom:16px;flex-wrap:wrap}
.search{flex:1;min-width:200px;height:40px;border:1.3px solid var(--line);border-radius:11px;padding:0 14px;background:var(--card-soft)}
.search:focus{outline:none;border-color:var(--accent);background:#fff}
.btn{height:40px;border:0;border-radius:11px;padding:0 16px;font-weight:700;cursor:pointer;background:var(--grad-accent);color:#fff;display:inline-flex;align-items:center;gap:7px;box-shadow:0 6px 16px rgba(37,99,235,.28)}
.btn:hover{filter:brightness(1.05)}
.btn.ghost{background:#fff;color:#334E68;border:1px solid var(--line);box-shadow:none}
.btn.ghost:hover{background:var(--accent-soft);border-color:var(--accent-line)}
.btn.sm{height:33px;padding:0 12px;font-size:12.5px;font-weight:600;box-shadow:none}
.toolbar input[type=date]{height:40px;border:1.3px solid var(--line);border-radius:11px;padding:0 12px;background:var(--card-soft)}

/* tablas con filas-tarjeta (estilo NexusCore Manager) */
.table-wrap{overflow:auto;border-radius:var(--radius)}
table{width:100%;border-collapse:separate;border-spacing:0 7px;font-size:13.5px}
thead th{text-align:left;color:var(--muted);font-weight:800;padding:6px 14px;font-size:11px;text-transform:uppercase;letter-spacing:.4px;white-space:nowrap;border-bottom:2px solid var(--accent-line)}
tbody td{padding:12px 14px;background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
tbody td:first-child{border-left:1px solid var(--line);border-radius:11px 0 0 11px}
tbody td:last-child{border-right:1px solid var(--line);border-radius:0 11px 11px 0}
tbody tr{box-shadow:var(--shadow-soft)}
tbody tr:hover td{background:var(--accent-soft);border-color:var(--accent-line)}
tfoot td{padding:12px 14px}
.empty{padding:40px;text-align:center;color:var(--muted)}
.pill{display:inline-block;padding:3px 11px;border-radius:20px;font-size:12px;font-weight:700}
.pill.on{background:var(--ok-soft);color:var(--ok)} .pill.off{background:#EEF1F4;color:var(--off)}
.pill.warn{background:var(--warn-soft);color:var(--warn)} .pill.crit{background:var(--crit-soft);color:var(--crit)}
.chip{display:inline-flex;align-items:center;gap:5px;padding:4px 10px;border-radius:9px;background:var(--accent-soft);font-size:12px;font-weight:600;color:var(--accent-2)}

/* tarjetas de entidad (maestro) */
.entity-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(310px,1fr));gap:16px}
.ecard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow-card);cursor:pointer;transition:.14s}
.ecard:hover{border-color:var(--accent-line);box-shadow:0 6px 22px rgba(15,35,66,.14);transform:translateY(-2px)}
.ecard .top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.ecard .ico{width:46px;height:46px;border-radius:13px;display:flex;align-items:center;justify-content:center;font-size:21px;background:var(--grad-icon);color:var(--accent-2);box-shadow:var(--shadow-soft);border:1px solid #DCEAFB}
.ecard .title{font-weight:800}
.ecard .meta{font-size:12px;color:var(--muted)}
.ecard .row{display:flex;justify-content:space-between;font-size:13px;padding:5px 0;border-top:1px dashed var(--line)}

/* tanque (shell + combustible con degradado) */
.tankviz{position:relative;width:100%;height:152px;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:var(--grad-tank)}
.tankviz .fill{position:absolute;left:0;right:0;bottom:0;background:var(--grad-fuel);transition:height .4s}
.tankviz.crit .fill{background:linear-gradient(#F2A8A4,#B9413A)}
.tankviz.warn .fill{background:linear-gradient(#F4D79A,#B7791F)}
.tankviz .lvl{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;font-weight:800;font-size:27px;color:#16314f;text-shadow:0 1px 2px rgba(255,255,255,.7)}
.tankviz .lvl small{font-size:12px;font-weight:600;color:#33506e}

/* drawer */
.overlay{position:fixed;inset:0;background:rgba(8,24,52,.4);z-index:40;opacity:0;pointer-events:none;transition:.2s}
.overlay.show{opacity:1;pointer-events:auto}
.drawer{position:fixed;top:0;right:0;height:100vh;width:480px;max-width:92vw;background:#fff;z-index:41;box-shadow:-12px 0 44px rgba(8,24,52,.22);transform:translateX(100%);transition:transform .25s;display:flex;flex-direction:column}
.drawer.show{transform:translateX(0)}
.drawer header{display:flex;align-items:center;gap:10px;padding:18px 20px;border-bottom:1px solid var(--line);background:var(--card-soft)}
.drawer header h3{margin:0;font-size:16px;flex:1;font-weight:800}
.drawer .body{padding:20px;overflow-y:auto;flex:1}
.drawer .foot{padding:14px 20px;border-top:1px solid var(--line);display:flex;gap:10px;justify-content:flex-end;background:var(--card-soft)}
.field{margin-bottom:14px}
.field label{display:block;font-size:12.5px;font-weight:700;color:#334E68;margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;height:40px;border:1.3px solid var(--line);border-radius:10px;padding:0 11px;font-size:14px;background:var(--card-soft)}
.field textarea{height:auto;padding:9px 11px;min-height:70px}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--accent);background:#fff}
.field .row2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
/* Las casillas no deben heredar el tamaño de los inputs de texto. */
.field input[type=checkbox],.switch input,.oprow input[type=checkbox],.login-form input[type=checkbox]{
  width:18px;height:18px;min-height:0;margin:0;padding:0;accent-color:var(--accent);cursor:pointer;flex:none}
.switch{display:flex;align-items:center;gap:8px;font-size:13.5px;color:#334E68;cursor:pointer}
.dtabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin:-4px -4px 16px;padding:0 4px}
.dtab{border:0;background:transparent;padding:10px 14px;font-weight:700;font-size:13px;color:var(--muted);cursor:pointer;border-bottom:2px solid transparent}
.dtab.active{color:var(--accent-2);border-bottom-color:var(--accent)}
.dpane{display:none} .dpane.active{display:block}
.oprow{display:flex;align-items:center;gap:10px;padding:9px 4px;border-bottom:1px solid var(--line);font-size:13.5px}
.oprow:last-child{border-bottom:0}
.oplist{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:0 24px;margin-top:6px}
.oplist .oprow{border-bottom:1px dashed var(--line)}

/* misc */
.btn-mini{border:1px solid var(--line);background:#fff;border-radius:8px;padding:4px 9px;font-size:12px;font-weight:600;cursor:pointer;color:#334E68;margin-right:5px}
.btn-mini:hover{background:var(--accent-soft);border-color:var(--accent-line)}
.btn-mini.danger{color:var(--crit);border-color:#F0C8C5}
.toast{position:fixed;right:20px;bottom:20px;background:#16314f;color:#fff;padding:13px 17px;border-radius:12px;font-size:13.5px;box-shadow:0 14px 34px rgba(8,24,52,.4);opacity:0;transform:translateY(10px);transition:.25s;z-index:60;max-width:360px}
.toast.show{opacity:1;transform:translateY(0)}
.banner{padding:11px 15px;border-radius:12px;margin-bottom:16px;font-size:13px;display:flex;align-items:center;gap:10px}
.banner.warn{background:var(--warn-soft);color:#8a5a12}
.locked-note{padding:44px;text-align:center;color:var(--muted)}
.locked-note .big{font-size:42px;margin-bottom:10px}
.kpi-row,.result{font-size:13.5px}
canvas{max-width:100%}

/* responsive */
.hamb{display:none}
@media(max-width:900px){
  .app{grid-template-columns:1fr;grid-template-areas:"top" "main"}
  .sidebar{position:fixed;top:0;left:0;bottom:0;width:236px;z-index:45;transform:translateX(-100%);transition:transform .25s;box-shadow:6px 0 30px rgba(8,24,52,.2)}
  .app.nav-open .sidebar{transform:translateX(0)}
  .hamb{display:inline-flex;align-items:center;justify-content:center}
  .app.nav-open::after{content:"";position:fixed;inset:0;background:rgba(8,24,52,.35);z-index:44}
  .topbar .site-select{max-width:150px}
}
@media print{
  .sidebar,.topbar,.toolbar,.drawer,.overlay,#impersonateBar{display:none!important}
  .app{display:block;height:auto}.main{overflow:visible;padding:0}
  .table-wrap{max-height:none}tbody tr{box-shadow:none}
  body{background:#fff}
}