/* =========================================================
   Set de monitoreo · EX3600 — estilo (oscuro, tipo Grafana)
   ========================================================= */
:root{
  color-scheme: dark;
  --bg:#0F1319;          /* plano de página */
  --panel:#161B22;       /* superficie de panel / gráfica */
  --panel-2:#1C222B;     /* superficie elevada */
  --line:#262D38;        /* bordes */
  --grid:#232A34;        /* rejilla de gráficas */
  --axis:#3A4350;
  --ink:#E8ECF1;         /* texto principal */
  --ink-2:#B4BCC8;       /* texto secundario */
  --muted:#7F8997;       /* ejes, notas */
  --accent:#FF8A33;      /* naranja Grafana */
  --accent-2:#F46800;
  --accent-wash:rgba(255,138,51,.10);

  /* series (paso oscuro, validado contra --panel) */
  --s-volt:#3987e5;
  --s-rpm:#9085e9;
  --s-fuel:#3987e5;
  --s-off:#4A5260;       /* lecturas con motor apagado */

  /* estados (fijos, siempre con ícono + texto) */
  --ok:#0ca30c;
  --warn:#fab219;
  --serious:#ec835a;
  --crit:#e05252;

  --r:12px;
  --r-sm:8px;
  --hdr:64px;
  --max:1240px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; background:var(--bg); color:var(--ink);
  font:15px/1.55 var(--font); -webkit-font-smoothing:antialiased;
  min-height:100vh; display:flex; flex-direction:column;
}
main{flex:1; width:100%; max-width:var(--max); margin:0 auto; padding:28px 20px 56px; outline:none}
img{max-width:100%}
a{color:var(--accent); text-decoration:none}
a:hover{text-decoration:underline}
button,input,select{font:inherit; color:inherit}
[hidden]{display:none!important}
h1,h2,h3{line-height:1.2; margin:0; font-weight:700; letter-spacing:-.01em}
h1{font-size:clamp(26px,4.2vw,40px)}
h2{font-size:clamp(19px,2.4vw,24px)}
h3{font-size:16px}
p{margin:0}
.num{font-variant-numeric:tabular-nums}

.saltar{position:absolute; left:-999px; top:8px; z-index:100; background:var(--accent); color:#111; padding:8px 12px; border-radius:6px}
.saltar:focus{left:12px}
:focus-visible{outline:2px solid var(--accent); outline-offset:2px; border-radius:4px}

/* ---------------- HEADER ---------------- */
.hdr{position:sticky; top:0; z-index:50; background:rgba(15,19,25,.92); backdrop-filter:blur(10px); border-bottom:1px solid var(--line)}
.hdr-in{max-width:var(--max); margin:0 auto; height:var(--hdr); padding:0 20px; display:flex; align-items:center; gap:18px}
.marca{display:flex; align-items:center; gap:11px; color:var(--ink); text-decoration:none!important; min-width:0}
.marca .logo{width:34px; height:34px; border-radius:8px; flex:none}
.marca span{display:flex; flex-direction:column; line-height:1.15; min-width:0}
.marca b{font-size:15px}
.marca i{font-style:normal; font-size:12px; color:var(--muted); white-space:nowrap; overflow:hidden; text-overflow:ellipsis}

.nav{margin-left:auto; display:flex; align-items:center; gap:4px}
.nav a,.nav button{
  display:inline-flex; align-items:center; gap:6px; height:38px; padding:0 14px; border-radius:var(--r-sm);
  background:none; border:0; color:var(--ink-2); cursor:pointer; font-size:14px; font-weight:600; text-decoration:none!important;
}
.nav a:hover,.nav button:hover{background:var(--panel-2); color:var(--ink)}
.nav .activo{color:var(--ink); background:var(--panel-2)}
.nav button[aria-expanded="true"]{color:var(--accent); background:var(--accent-wash)}
.nav .flecha{width:10px; height:10px; transition:transform .2s}
.nav button[aria-expanded="true"] .flecha{transform:rotate(180deg)}

/* panel desplegable (escritorio) */
.mega{position:absolute; left:0; right:0; top:100%; max-height:calc(100vh - var(--hdr)); overflow-y:auto; background:var(--panel); border-bottom:1px solid var(--line); box-shadow:0 18px 40px rgba(0,0,0,.45)}
.mega-in{max-width:var(--max); margin:0 auto; padding:22px 20px 26px; display:grid; grid-template-columns:260px 1fr; gap:28px}
.mega-intro b{display:block; font-size:18px; margin-bottom:6px}
.mega-intro p{color:var(--muted); font-size:13.5px}

/* ---------------- ACORDEÓN ---------------- */
.acc{display:flex; flex-direction:column; gap:8px}
.acc-item{border:1px solid var(--line); border-radius:var(--r); background:var(--bg); overflow:hidden}
.acc-btn{
  width:100%; display:flex; align-items:center; gap:10px; padding:12px 14px; background:none; border:0; cursor:pointer;
  color:var(--ink); font-weight:700; font-size:15px; text-align:left;
}
.acc-btn:hover{background:var(--panel-2)}
.acc-btn .sub{font-weight:500; color:var(--muted); font-size:12.5px; margin-left:auto; margin-right:6px}
.acc-btn .chev{width:12px; height:12px; flex:none; transition:transform .22s; color:var(--muted)}
.acc-btn[aria-expanded="true"] .chev{transform:rotate(90deg); color:var(--accent)}
.acc-btn .pin{width:8px; height:8px; border-radius:50%; background:var(--accent); flex:none}
.acc-panel{display:grid; grid-template-rows:0fr; transition:grid-template-rows .25s ease}
.acc-panel.abierto{grid-template-rows:1fr}
.acc-panel > div{overflow:hidden}
.acc-panel .acc{padding:0 10px 10px}
.acc .acc .acc-item{background:var(--panel)}
.acc .acc .acc-btn{font-size:14px; padding:10px 12px}

.mon-lista{list-style:none; margin:0; padding:2px 10px 10px; display:grid; gap:4px}
.mon-lista a{
  display:flex; align-items:center; gap:10px; padding:9px 12px; border-radius:var(--r-sm); color:var(--ink-2); font-size:14px; text-decoration:none!important;
}
.mon-lista a:hover{background:var(--panel-2); color:var(--ink)}
.mon-lista a.activo{background:var(--accent-wash); color:var(--accent)}
.mon-lista .ico{width:28px; height:28px; border-radius:7px; display:grid; place-items:center; background:var(--panel-2); color:var(--accent); flex:none}
.mon-lista .ico svg{width:16px; height:16px}
.mon-lista small{display:block; color:var(--muted); font-size:12px; line-height:1.3}
.mon-lista .prox{opacity:.5; pointer-events:none}

/* ---------------- BURGER / DRAWER ---------------- */
.burger{display:none; margin-left:auto; width:42px; height:42px; border-radius:10px; border:1px solid var(--line); background:var(--panel); cursor:pointer; padding:0; position:relative}
.burger span{position:absolute; left:11px; right:11px; height:2px; background:var(--ink); border-radius:2px; transition:.2s}
.burger span:nth-child(1){top:14px}.burger span:nth-child(2){top:20px}.burger span:nth-child(3){top:26px}
.burger[aria-expanded="true"] span:nth-child(1){top:20px; transform:rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){top:20px; transform:rotate(-45deg)}

.velo{position:fixed; inset:0; background:rgba(0,0,0,.55); z-index:60}
.drawer{position:fixed; top:0; right:0; bottom:0; width:min(360px,88vw); background:var(--panel); z-index:70; border-left:1px solid var(--line); overflow-y:auto; padding:18px 16px 30px; animation:entra .22s ease}
@keyframes entra{from{transform:translateX(30px); opacity:0}to{transform:none; opacity:1}}
.drawer-top{display:flex; align-items:center; justify-content:space-between; margin-bottom:14px}
.drawer-top b{font-size:16px}
.cerrar{width:38px; height:38px; border-radius:9px; border:1px solid var(--line); background:var(--bg); cursor:pointer; font-size:18px; line-height:1}
.drawer .ir-inicio{display:flex; align-items:center; gap:10px; padding:12px 14px; border:1px solid var(--line); border-radius:var(--r); color:var(--ink); font-weight:700; margin-bottom:8px; text-decoration:none!important}

@media (max-width:860px){
  .nav{display:none}
  .burger{display:block}
  .mega{display:none!important}
}

/* ---------------- COMUNES ---------------- */
.migas{display:flex; flex-wrap:wrap; align-items:center; gap:6px; font-size:13px; color:var(--muted); margin-bottom:14px}
.migas a{color:var(--ink-2)}
.migas .sep{opacity:.5}
.eyebrow{display:inline-block; font-size:12px; font-weight:700; letter-spacing:.09em; text-transform:uppercase; color:var(--accent); margin-bottom:10px}
.lead{color:var(--ink-2); font-size:16px; max-width:760px; margin-top:12px}
.seccion{margin-top:40px}
.seccion > h2{margin-bottom:6px}
.seccion > p.sub{color:var(--muted); margin-bottom:18px}

.btn{display:inline-flex; align-items:center; gap:8px; height:40px; padding:0 16px; border-radius:var(--r-sm); border:1px solid var(--line); background:var(--panel-2); color:var(--ink); font-weight:600; font-size:14px; cursor:pointer; text-decoration:none!important}
.btn:hover{border-color:var(--axis)}
.btn.pri{background:var(--accent); border-color:var(--accent); color:#1a0f05}
.btn.pri:hover{background:#ff9a4d}
.btn svg{width:16px; height:16px}

/* ---------------- INICIO ---------------- */
.hero{position:relative; padding:34px 30px; border:1px solid var(--line); border-radius:18px; overflow:hidden;
  background:
    radial-gradient(600px 300px at 0% 0%, rgba(244,104,0,.16), transparent 70%),
    linear-gradient(var(--panel), var(--panel));}
.hero::after{content:""; position:absolute; inset:0; pointer-events:none; opacity:.35;
  background-image:linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size:36px 36px; mask-image:linear-gradient(90deg, transparent 30%, #000)}
.hero > *{position:relative; z-index:1}
.hero .acciones{display:flex; flex-wrap:wrap; gap:10px; margin-top:22px}

.modelos{display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:16px}
.modelo{border:1px solid var(--line); border-radius:16px; background:var(--panel); padding:20px; display:flex; flex-direction:column; gap:14px}
.modelo-cab{display:flex; align-items:baseline; justify-content:space-between; gap:12px}
.modelo-cab h3{font-size:20px}
.modelo-cab span{color:var(--muted); font-size:13px}
.modelo p{color:var(--ink-2); font-size:14px}
.mon-cards{display:grid; gap:8px}
.mon-card{display:flex; align-items:center; gap:12px; padding:12px 14px; border-radius:var(--r); border:1px solid var(--line); background:var(--bg); color:var(--ink); text-decoration:none!important}
.mon-card:hover{border-color:var(--accent)}
.mon-card .ico{width:36px; height:36px; border-radius:9px; background:var(--accent-wash); color:var(--accent); display:grid; place-items:center; flex:none}
.mon-card .ico svg{width:18px; height:18px}
.mon-card b{display:block; font-size:14.5px}
.mon-card small{color:var(--muted); font-size:12.5px}
.mon-card .ir{margin-left:auto; color:var(--muted)}

.pasos{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:14px}
.paso{border:1px solid var(--line); border-radius:var(--r); padding:16px; background:var(--panel)}
.paso b{display:flex; align-items:center; gap:8px; margin-bottom:6px}
.paso b i{font-style:normal; width:24px; height:24px; border-radius:50%; display:grid; place-items:center; background:var(--accent-wash); color:var(--accent); font-size:12px}
.paso p{color:var(--ink-2); font-size:14px}

.instalar{display:grid; grid-template-columns:auto 1fr; gap:22px; align-items:center; border:1px solid var(--line); border-radius:16px; padding:20px; background:var(--panel)}
.instalar img{width:96px; height:96px; border-radius:20px}
.instalar p{color:var(--ink-2); font-size:14px; margin-top:6px}
.instalar .acciones{display:flex; flex-wrap:wrap; gap:8px; margin-top:14px}

@media (max-width:760px){
  .modelos,.pasos{grid-template-columns:1fr}
  .hero{padding:26px 20px}
  .instalar{grid-template-columns:1fr}
}

/* ---------------- PÁGINA DE MONITOREO ---------------- */
.cab-mon{display:flex; flex-wrap:wrap; align-items:flex-end; justify-content:space-between; gap:16px}
.pestanas{display:flex; gap:6px; flex-wrap:wrap}
.pestanas a{padding:8px 14px; border-radius:999px; border:1px solid var(--line); color:var(--ink-2); font-size:13.5px; font-weight:600; text-decoration:none!important}
.pestanas a.activo{border-color:var(--accent); color:var(--accent); background:var(--accent-wash)}

.filtros{display:flex; flex-wrap:wrap; align-items:flex-end; gap:12px; margin:22px 0 18px; padding:14px; border:1px solid var(--line); border-radius:var(--r); background:var(--panel)}
.campo{display:flex; flex-direction:column; gap:5px; min-width:0}
.campo label{font-size:11.5px; font-weight:700; letter-spacing:.05em; text-transform:uppercase; color:var(--muted)}
.campo select,.campo input{height:38px; border-radius:var(--r-sm); border:1px solid var(--line); background:var(--bg); padding:0 10px; min-width:0}
.campo input[type=number]{width:96px}
.campo input[type=datetime-local]{width:210px}
.campo select{min-width:150px}
.filtros .sep{flex:1}
.presets{display:flex; gap:4px; flex-wrap:wrap}
.presets button{height:38px; padding:0 11px; border-radius:var(--r-sm); border:1px solid var(--line); background:var(--bg); color:var(--ink-2); cursor:pointer; font-size:13px; font-weight:600}
.presets button.activo{border-color:var(--accent); color:var(--accent); background:var(--accent-wash)}

.kpis{display:grid; grid-template-columns:repeat(auto-fit,minmax(150px,1fr)); gap:12px}
.kpi{border:1px solid var(--line); border-radius:var(--r); background:var(--panel); padding:14px 16px}
.kpi span{display:block; font-size:12.5px; color:var(--muted)}
.kpi b{display:block; font-size:26px; font-weight:700; margin-top:4px; letter-spacing:-.01em}
.kpi small{display:block; color:var(--ink-2); font-size:12.5px; margin-top:2px}

.estado{display:inline-flex; align-items:center; gap:6px; font-weight:700; font-size:12.5px; padding:3px 9px; border-radius:999px; border:1px solid currentColor; white-space:nowrap}
.estado svg{width:12px; height:12px}
.estado.ok{color:var(--ok)} .estado.bajo{color:var(--crit)} .estado.alto{color:var(--serious)} .estado.warn{color:var(--warn)}

.rejilla{display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:14px; margin-top:14px}
.rejilla .ancho{grid-column:1/-1}
.panel{border:1px solid var(--line); border-radius:var(--r); background:var(--panel); padding:16px; min-width:0}
.panel-cab{display:flex; flex-wrap:wrap; align-items:baseline; justify-content:space-between; gap:6px 14px; margin-bottom:10px}
.panel-cab p{color:var(--muted); font-size:13px; width:100%}
.leyenda{display:flex; flex-wrap:wrap; gap:12px; font-size:12.5px; color:var(--ink-2)}
.leyenda span{display:inline-flex; align-items:center; gap:6px}
.leyenda i{display:inline-block; width:14px; height:3px; border-radius:2px}
.leyenda i.pt{width:9px; height:9px; border-radius:50%}
.leyenda i.banda{width:14px; height:10px; border-radius:2px; background:rgba(12,163,12,.18); border:1px dashed rgba(12,163,12,.7)}
.lienzo{position:relative; height:280px}
.lienzo.alto{height:340px}
.lienzo.bajo{height:200px}
.lienzo.cargando{opacity:.45; transition:opacity .2s}

@media (max-width:900px){ .rejilla{grid-template-columns:1fr} }
@media (max-width:560px){
  main{padding:20px 16px 44px}
  .lienzo{height:240px} .lienzo.alto{height:280px}
  .kpi{padding:12px} .kpi b{font-size:21px}
  .campo{flex:1 1 140px}
  .campo input[type=datetime-local],.campo select,.campo input[type=number]{width:100%}
  .filtros .sep{display:none}
}

/* tabla */
.tabla-wrap{overflow-x:auto; border:1px solid var(--line); border-radius:var(--r)}
table{width:100%; border-collapse:collapse; font-size:13.5px}
th,td{padding:10px 12px; text-align:left; border-bottom:1px solid var(--line); white-space:nowrap}
th{font-size:11.5px; font-weight:700; letter-spacing:.05em; text-transform:uppercase; color:var(--muted); background:var(--panel-2); position:sticky; top:0}
td.num,th.num{text-align:right; font-variant-numeric:tabular-nums}
tbody tr:hover{background:var(--panel-2)}
tbody tr:last-child td{border-bottom:0}
.tabla-scroll{max-height:420px; overflow:auto}

/* interpretación */
.interp{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:12px}
.interp > div{border:1px solid var(--line); border-radius:var(--r); padding:14px; background:var(--panel)}
.interp h3{display:flex; align-items:center; gap:8px; margin-bottom:6px}
.interp p,.interp li{color:var(--ink-2); font-size:13.5px}
.interp ul{margin:6px 0 0; padding-left:18px}
@media (max-width:900px){ .interp{grid-template-columns:1fr} }

/* avisos / carga */
.aviso{display:flex; gap:12px; align-items:flex-start; border:1px solid var(--line); border-left:3px solid var(--warn); border-radius:var(--r); background:var(--panel); padding:14px 16px; color:var(--ink-2); font-size:14px}
.aviso b{color:var(--ink)}
.aviso.error{border-left-color:var(--crit)}
.aviso.info{border-left-color:var(--s-volt)}
.carga{display:flex; flex-wrap:wrap; align-items:center; gap:10px; margin-top:12px}
.soltar{border:1.5px dashed var(--axis); border-radius:var(--r); padding:22px; text-align:center; color:var(--muted); margin-top:14px; transition:.15s}
.soltar.sobre{border-color:var(--accent); background:var(--accent-wash); color:var(--ink)}
.fuente{font-size:12.5px; color:var(--muted); margin-top:8px}
.fuente code{color:var(--ink-2)}

/* tooltip propio */
.tip{position:fixed; z-index:90; pointer-events:none; background:#0B0E13; border:1px solid var(--axis); border-radius:8px; padding:8px 10px; font-size:12.5px; box-shadow:0 8px 24px rgba(0,0,0,.5); max-width:260px}
.tip .t{color:var(--muted); margin-bottom:4px}
.tip .f{display:flex; align-items:center; gap:8px}
.tip .f i{width:12px; height:2px; border-radius:2px; flex:none}
.tip .f b{font-variant-numeric:tabular-nums}
.tip .f span{color:var(--ink-2)}

/* ---------------- FOOTER ---------------- */
footer{border-top:1px solid var(--line); background:var(--panel)}
.pie{max-width:var(--max); margin:0 auto; padding:26px 20px; display:grid; grid-template-columns:1.2fr 1fr; gap:24px}
.pie p{color:var(--muted); font-size:13.5px; margin-top:6px; max-width:460px}
.pie-nav{display:flex; flex-wrap:wrap; gap:8px 18px; align-content:flex-start; justify-content:flex-end; font-size:13.5px}
.pie-nav a{color:var(--ink-2)}
.pie-bajo{max-width:var(--max); margin:0 auto; padding:12px 20px 20px; display:flex; justify-content:space-between; gap:12px; color:var(--muted); font-size:12.5px; border-top:1px solid var(--line)}
@media (max-width:700px){ .pie{grid-template-columns:1fr} .pie-nav{justify-content:flex-start} .pie-bajo{flex-direction:column} }

@media (prefers-reduced-motion:reduce){ *{transition:none!important; animation:none!important} }