/* Paleta calma/baja saturación (según investigación de color de trabajo) */
:root{
  --card:#ffffff; --ink:#243024; --muted:#6b7682;
  --line:#dde3e9; --accent:#15691c;            /* verde institucional CBTA 120 */
  --accent-d:#0f5214; --ok:#15691c; --err:#b4564b;
  --gold:#f2c200;                              /* dorado de la marca CBTA */
}
*{box-sizing:border-box}
[hidden]{display:none!important}   /* el atributo hidden gana sobre display:flex de .modal */
body{margin:0;min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;
  background:linear-gradient(180deg,#1a7a22 0%,#15691c 45%,#0e5214 100%);color:var(--ink);
  font:16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;padding:20px}
.card{background:var(--card);width:100%;max-width:420px;border:1px solid var(--line);border-top:5px solid var(--gold);border-radius:16px;
  padding:28px 24px;box-shadow:0 10px 32px rgba(0,0,0,.18)}
header{text-align:center;margin-bottom:20px}
.logo{font-size:40px}
.logo-img{width:108px;height:auto;margin:0 auto 4px;display:block}
.marca{color:#15691c;font-weight:800;letter-spacing:.5px;font-size:15px;margin:2px 0 0}
h1{font-size:22px;margin:8px 0 4px}
.sub{color:var(--muted);margin:0;font-size:14px}
form{display:flex;flex-direction:column;gap:14px}
label{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted);font-weight:600}
input,select{font-size:16px;padding:11px 12px;border:1px solid var(--line);border-radius:10px;background:#fafbfc;color:var(--ink)}
input:focus,select:focus{outline:none;border-color:var(--accent);background:#fff}
button{margin-top:4px;background:var(--accent);color:#fff;border:0;border-radius:10px;padding:13px;font-size:16px;font-weight:600;cursor:pointer}
button:hover{background:var(--accent-d)}
button:disabled{opacity:.6;cursor:wait}
.err{color:var(--err);font-size:14px;margin:4px 0 0;text-align:center}
.ok h2{font-size:18px;text-align:center;color:var(--ok)}
.creds{display:flex;flex-direction:column;gap:8px;margin:16px 0}
.creds div{display:flex;justify-content:space-between;align-items:center;background:#f4f7f8;border:1px solid var(--line);border-radius:10px;padding:10px 14px}
.creds span{color:var(--muted);font-size:13px}
.creds b{font-size:18px;letter-spacing:.5px;font-family:ui-monospace,Menlo,Consolas,monospace}
.wa{display:block;text-align:center;background:#25884f;color:#fff;text-decoration:none;border-radius:10px;padding:13px;font-weight:600;margin-top:6px}
.wa:hover{background:#1f7344}
.hint{color:var(--muted);font-size:13px;text-align:center;margin-top:14px}
footer{color:rgba(255,255,255,.92);font-size:12px;margin-top:18px;text-align:center;max-width:420px}
.redes{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;align-items:center;margin-bottom:6px}
.redes a,.redes span{color:#fff;text-decoration:none;font-weight:600}
.redes a:hover{text-decoration:underline}
.redes .tel{background:var(--gold);color:#3a2e00;padding:3px 10px;border-radius:20px}
.cred{opacity:.8}
.big{font-size:46px;text-align:center}

/* === MÓVIL (la página se usará sobre todo en celular) === */
@media (max-width:540px){
  body{padding:12px}
  .card{padding:22px 16px}
  .panel{padding:16px 12px}
  h1{font-size:20px}
  .tabs.main{overflow-x:auto;flex-wrap:nowrap;-webkit-overflow-scrolling:touch;padding-bottom:2px}
  .mtab{white-space:nowrap;padding:8px 12px}
  .row,.mrow,.drow{flex-direction:column;align-items:stretch}
  .row .estado{align-self:flex-start}
  .acc{justify-content:flex-start}
  .acc button{flex:1}
  .mrow .vc{width:100%;margin-top:8px}
  .cards{grid-template-columns:repeat(2,1fr)}
  .vc,.acc .ok,.acc .no{padding:11px 12px}
}

/* Panel director */
.panel{background:var(--card);width:100%;max-width:1080px;border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:0 8px 28px rgba(43,49,56,.07)}
.bar{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.link{background:none;border:0;color:var(--accent);cursor:pointer;font-weight:600;padding:6px;width:auto}
.tabs{display:flex;gap:8px;margin-bottom:14px;flex-wrap:wrap}
.tab{background:#f1f4f6;color:var(--ink);border:1px solid var(--line);border-radius:20px;padding:7px 16px;font-size:14px;width:auto;font-weight:600}
.tab.on{background:var(--accent);color:#fff;border-color:var(--accent)}
.row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;border:1px solid var(--line);border-radius:12px;padding:12px 14px;margin-bottom:10px}
.row .info{flex:1;min-width:160px;display:flex;flex-direction:column}
.row .info span{color:var(--muted);font-size:12px}
.row .estado{font-size:13px;font-weight:600}
.row .meta{color:var(--muted);font-size:13px}
.acc{display:flex;gap:8px}
.acc button{width:auto;padding:8px 14px;font-size:14px}
.acc .ok{background:var(--ok)}
.acc .no{background:#f1f4f6;color:var(--ink);border:1px solid var(--line)}
.acc .no.warn{background:var(--err);color:#fff;border-color:var(--err)}
.empty{color:var(--muted);text-align:center;padding:20px}

/* Fase 2: dispositivos + stats */
.tabs.main{border-bottom:2px solid var(--line);padding-bottom:0;gap:4px}
.mtab{background:none;border:0;border-bottom:3px solid transparent;border-radius:0;color:var(--muted);font-weight:700;padding:8px 14px;width:auto}
.mtab.on{color:var(--accent);border-bottom-color:var(--accent);background:none}
.buscar{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;margin-bottom:8px;font-size:15px}
.muted-line{color:var(--muted);font-size:13px;margin:4px 0 12px}
.drow{border:1px solid var(--line);border-radius:10px;padding:10px 12px;margin-bottom:8px;display:flex;flex-direction:column;gap:3px}
.dmain{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.dsub{color:var(--muted);font-size:12px;font-family:ui-monospace,Consolas,monospace}
.dname{color:var(--accent);font-size:13px;cursor:pointer;font-weight:600;margin-top:2px}
.dname i{color:var(--muted);font-weight:400}
.dot{width:9px;height:9px;border-radius:50%;background:#c4ccd2;flex:0 0 auto}
.dot.on{background:#2bb35a;box-shadow:0 0 0 3px rgba(43,179,90,.18)}
.bad{background:#fbeaea;color:#b4564b;font-size:11px;font-weight:700;padding:2px 7px;border-radius:10px}
.rt{background:#fcf3e2;color:#9a6a14;font-size:11px;font-weight:700;padding:2px 7px;border-radius:10px}
.chip{background:#f1f4f6;border:1px solid var(--line);color:var(--ink);border-radius:20px;padding:6px 14px;font-size:13px;font-weight:600;width:auto;margin-bottom:8px}
.chip.on{background:#fcf3e2;border-color:#e3c483;color:#9a6a14}
.stat.warn{background:#fcf3e2}
.stat.warn span{color:#9a6a14}
.who{background:#eef4ee;color:var(--accent);font-size:11px;font-weight:700;padding:2px 7px;border-radius:10px}
.ant{background:#e6f0f3;color:#356774;font-size:11px;font-weight:700;padding:2px 7px;border-radius:10px}
.stat.ant-c{background:#e6f0f3}
.stat.ant-c span{color:#356774}
.nin{width:100%;padding:7px 9px;border:1px solid var(--accent);border-radius:8px;font-size:14px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:10px;margin-bottom:8px}
.stat{background:#f4f7f4;border:1px solid var(--line);border-radius:12px;padding:14px;text-align:center;color:var(--muted);font-size:12px;font-weight:600;line-height:1.3}
.stat span{display:block;font-size:26px;color:var(--ink);font-weight:800}
.stat.alert{background:#fbeaea}
.stat.alert span{color:#b4564b}
.sec{font-size:15px;margin:18px 0 10px}
.bloque{border:1px solid var(--line);border-radius:10px;padding:10px 14px;margin-bottom:10px}
.bloque h4{margin:0 0 6px;font-size:14px;display:flex;justify-content:space-between}
.bloque h4 span{background:#b4564b;color:#fff;border-radius:10px;padding:0 8px;font-size:12px}
.bloque ul{margin:0;padding-left:18px}
.bloque li{font-size:13px}
.bloque small{color:var(--muted);font-family:ui-monospace,Consolas,monospace}
.bloque.alerta{border-color:#e3b1ab;background:#fdf3f2}
.ssub{font-weight:400;color:var(--muted);font-size:12px}

/* Gráficas de consumo */
.chartbox{border:1px solid var(--line);border-radius:12px;padding:12px 14px;margin-bottom:12px}
.chartbox h4{margin:0 0 8px;font-size:14px}
.chart{width:100%;height:auto;display:block}
.chart .cax{font-size:7.5px;fill:#8a96a0}
.chart .cgrid{stroke:#e9eef1;stroke-width:1;stroke-dasharray:3 3}
.chart .cbase{stroke:#cfd6db;stroke-width:1}
.cap{margin:6px 0 0;font-size:12px;color:var(--ink)}
.cap .hrs{display:block;color:var(--muted);margin-top:2px;font-size:11px;letter-spacing:2px}

/* Consumo por equipo */
.crow{border:1px solid var(--line);border-radius:10px;padding:10px 12px;margin-bottom:8px}
.cmain{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:6px}
.cbar{height:8px;background:#eef1f0;border-radius:6px;overflow:hidden}
.cbar span{display:block;height:100%;background:linear-gradient(90deg,var(--accent),#2bb35a);border-radius:6px}
.csub{color:var(--muted);font-size:12px;margin-top:5px;font-family:ui-monospace,Consolas,monospace}
.rate{background:#15691c;color:#fff;font-size:11px;font-weight:700;padding:2px 8px;border-radius:10px}
.crow.click{cursor:pointer}
.crow.click:hover{border-color:var(--accent);background:#f7faf7}
.ver{margin-left:auto;color:var(--accent);font-size:12px;font-weight:600}
.modal-box.wide{max-width:460px;text-align:left}
.modal-box.wide h4{font-size:14px;margin:14px 0 6px}

/* Maestros con acceso (roster) */
.mrow{display:flex;align-items:center;justify-content:space-between;gap:10px;border:1px solid var(--line);border-radius:10px;padding:10px 14px;margin-bottom:8px}
.mrow .info{display:flex;flex-direction:column}
.mmeta{color:var(--muted);font-size:12px}
.vc{background:var(--accent);color:#fff;border:0;border-radius:8px;padding:8px 12px;font-size:13px;font-weight:600;width:auto;white-space:nowrap}
.vc:hover{background:var(--accent-d)}

/* Guías */
.guia{font-size:14px}
.gtop{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
.guia h2{font-size:18px;margin:4px 0 8px}
.guia h3{font-size:15px;margin:16px 0 8px}
.gwhy{color:var(--ink);background:#f4f7f4;border:1px solid var(--line);border-radius:10px;padding:12px 14px}
.gbox{border:1px solid #e3c483;background:#fcf3e2;border-radius:10px;padding:10px 14px;margin-top:12px}
.gbox h3{margin:0 0 6px;color:#9a6a14}
.grouters{margin:0;padding-left:18px}
.grouters li{margin:3px 0}
.gsteps{padding-left:20px;line-height:1.6}
.gsteps li{margin-bottom:8px}
.gnote{border-radius:10px;padding:10px 14px;margin-top:12px;font-size:13px;background:#fcf3e2;border:1px solid #e3c483;color:#7a5410}
.gnote.ok{background:#eef4ee;border-color:#bcd8c2;color:var(--accent)}
@media print{
  body{background:#fff!important}
  .bar,.tabs,#login,.chip{display:none!important}
  .panel{box-shadow:none;border:0;max-width:100%}
}

/* Modal */
.modal{position:fixed;inset:0;background:rgba(43,49,56,.45);display:flex;align-items:center;justify-content:center;padding:20px;z-index:10}
.modal-box{background:#fff;border-radius:16px;padding:24px;max-width:380px;width:100%;text-align:center}
.modal-box h2{font-size:18px;color:var(--ok)}
/* Toast */
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:var(--ink);color:#fff;padding:12px 18px;border-radius:10px;font-size:14px;z-index:20;box-shadow:0 6px 20px rgba(0,0,0,.25)}

/* Logs */
.logbox{margin-bottom:16px}
.loghead{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:6px}
.loghead h4{font-size:15px}
.logpane{background:#0d1b12;color:#cfe9d4;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px;line-height:1.45;padding:12px;border-radius:10px;max-height:46vh;overflow:auto;white-space:pre;-webkit-overflow-scrolling:touch}
.logtools{display:flex;gap:8px;align-items:center}
.logsearch{margin:0!important;max-width:180px;padding:6px 10px;font-size:13px}
@media(max-width:540px){.loghead{flex-wrap:wrap}.logsearch{max-width:120px}}

/* ===== PESTANAS-UNA-LINEA: nunca se parten en dos renglones ===== */
#login{margin:auto 0}                 /* el login sigue centrado aunque el body ya no centre */
.tabs.main{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:thin}
.mtab{white-space:nowrap;flex:0 0 auto}

/* ===== Tabla de equipos de red ===== */
.tbl{width:100%;border-collapse:collapse;font-size:14px}
.tbl thead th{text-align:left;font-size:11px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--muted);border-bottom:2px solid var(--line);padding:8px 10px;white-space:nowrap}
.tbl td{padding:10px;border-bottom:1px solid var(--line);vertical-align:top}
.tbl tbody tr.bloq{background:#fdf4f3}
.tbl tbody tr.bloq td:first-child{box-shadow:inset 4px 0 0 #b4564b}
.tbl tbody tr.ok{background:#f5f9f5}
.tbl tbody tr.ok td:first-child{box-shadow:inset 4px 0 0 #2bb35a}
.tbl .eq{font-weight:700;color:var(--ink)}
.tbl .sub{display:block;color:var(--muted);font-size:12px;margin-top:2px}
.tbl .net{font-family:ui-monospace,Consolas,monospace;font-size:12px;color:var(--muted);white-space:nowrap}
.tbl .net b{display:block;color:var(--ink);font-size:13px}
.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:11px;font-weight:800;
  letter-spacing:.04em;text-transform:uppercase;white-space:nowrap}
.badge.malo{background:#fbeaea;color:#a8342b;border:1px solid #eccbc7}
.badge.bueno{background:#e6f4ea;color:#1b6b32;border:1px solid #c3e3cd}
.intentos{color:#b4564b;font-weight:700}
.gpsv a{color:var(--accent);font-weight:600;text-decoration:none;font-size:12.5px}
.gpsv .no{color:var(--muted);font-size:12.5px}
.mini{background:none;border:1px solid var(--line);border-radius:8px;color:var(--muted);
  font-size:11px;font-weight:700;padding:3px 8px;width:auto;cursor:pointer;margin-top:4px}
.mini:hover{border-color:var(--accent);color:var(--accent)}
.ifr{width:100%;height:78vh;min-height:520px;border:1px solid var(--line);border-radius:12px;background:#fff}

/* ===== BARRA-LATERAL: 9 modulos no caben en pestañas horizontales ===== */
.panel{padding:0;overflow:hidden;max-width:1180px}
.panel .bar{padding:15px 20px;margin:0;border-bottom:1px solid var(--line)}
.cuerpo{display:grid;grid-template-columns:214px 1fr;min-height:540px}
.lateral{background:#f6faf6;border-right:1px solid var(--line);padding:14px 10px 20px;
  display:flex;flex-direction:column;gap:1px}
.lateral .grupo{font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:#8a998b;
  font-weight:800;padding:15px 11px 5px}
.lateral .mtab{display:block;width:100%;text-align:left;background:none;border:0;
  border-left:3px solid transparent;border-bottom:0;border-radius:0 8px 8px 0;
  padding:9px 12px;font-size:14px;font-weight:600;color:#41533f;cursor:pointer}
.lateral .mtab:hover{background:#eef4ee;color:#15691c}
.lateral .mtab.on{background:#e6f0e6;color:#15691c;border-left-color:#15691c;font-weight:800}
.contenido{padding:20px 22px 26px;min-width:0;overflow-x:auto}

@media (max-width:820px){
  .cuerpo{grid-template-columns:1fr;min-height:0}
  .lateral{flex-direction:row;overflow-x:auto;border-right:0;
    border-bottom:1px solid var(--line);padding:8px;gap:2px}
  .lateral .grupo{display:none}
  .lateral .mtab{white-space:nowrap;flex:0 0 auto;border-left:0;
    border-bottom:3px solid transparent;border-radius:0}
  .lateral .mtab.on{background:none;border-left:0;border-bottom-color:#15691c}
  .contenido{padding:16px}
}

/* Datos del inventario: cada dato como bloque, no como cadena que se parte sola */
#plantel table{table-layout:fixed}
#plantel th:nth-child(1),#plantel td:nth-child(1){width:21%}
#plantel th:nth-child(2),#plantel td:nth-child(2){width:22%}
#plantel th:nth-child(3),#plantel td:nth-child(3){width:17%}
#plantel th:nth-child(4),#plantel td:nth-child(4){width:25%}
#plantel th:nth-child(5),#plantel td:nth-child(5){width:15%}
.item{margin-bottom:7px;line-height:1.35;overflow-wrap:anywhere}
.item b{display:block;font-size:12.5px;color:var(--ink);font-weight:700}
.item span{display:block;font-size:11.5px;color:var(--muted)}
#plantel .sub{overflow-wrap:anywhere;line-height:1.4}
#plantel .net{font-family:inherit}
.seguimiento{border:1px solid var(--line);border-radius:10px;padding:12px 14px;margin-bottom:14px;background:#f6faf6}
.seguimiento > b{display:block;font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:#5a6b5b;margin-bottom:8px}
.seguimiento .fila{display:flex;justify-content:space-between;gap:12px;padding:4px 0;font-size:13.5px;border-top:1px solid #e6efe6}
.seguimiento .fila:first-of-type{border-top:0}
.seguimiento .cuenta{color:#15691c;font-weight:700}
.seguimiento .cero{color:#9a6a14}

/* ==========================================================================
   TEMA "glass" — vidrio esmerilado sobre fondo oscuro (Prepa Celestino)
   Se activa con data-tema="glass" en <html>, que inyecta el servidor segun la
   escuela. TODO va dentro de ese selector: el tema del CBTA no se toca.
   Paleta tomada del escudo de la prepa: rojo institucional, plata y dorado.
   ========================================================================== */
[data-tema="glass"]{
  --card:rgba(255,255,255,.08);
  --ink:#eef2f7;
  --muted:#a8b3c4;
  --line:rgba(255,255,255,.16);
  --accent:#c8151c;        /* rojo del escudo */
  --accent-d:#a21116;
  --ok:#4ade80;
  --err:#ff8a80;
  --gold:#e0b23c;          /* dorado del birrete y el pergamino */
}

/* Fondo: azul noche con dos halos suaves, para que el vidrio tenga que difuminar algo */
[data-tema="glass"] body{
  background:
    radial-gradient(900px 520px at 12% -8%, rgba(200,21,28,.20), transparent 60%),
    radial-gradient(760px 460px at 88% 108%, rgba(60,90,160,.24), transparent 62%),
    linear-gradient(170deg,#0b1220 0%,#111a2b 48%,#0a1017 100%);
  background-attachment:fixed;
  color:var(--ink);
}

/* La tarjeta: el vidrio */
[data-tema="glass"] .card{
  background:linear-gradient(180deg, rgba(255,255,255,.10), rgba(255,255,255,.05));
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border:1px solid var(--line);
  border-top:1px solid rgba(255,255,255,.28);   /* el filo brillante de arriba */
  border-radius:18px;
  box-shadow:0 18px 50px rgba(0,0,0,.45), inset 0 1px 0 rgba(255,255,255,.10);
  color:var(--ink);
  position:relative;
  overflow:hidden;
}
/* Reflejo diagonal tenue, la firma del acabado glass */
[data-tema="glass"] .card::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(115deg, rgba(255,255,255,.14) 0%, rgba(255,255,255,0) 42%);
}
[data-tema="glass"] .card > *{position:relative}

[data-tema="glass"] .logo-img{
  filter:drop-shadow(0 6px 16px rgba(0,0,0,.55));
}
[data-tema="glass"] .marca{
  color:var(--gold);
  text-shadow:0 1px 10px rgba(224,178,60,.30);
}
[data-tema="glass"] h1{color:#fff}
[data-tema="glass"] .sub,
[data-tema="glass"] label,
[data-tema="glass"] .hint{color:var(--muted)}

/* Campos: vidrio mas oscuro para que se lean como "hueco" */
[data-tema="glass"] input,
[data-tema="glass"] select{
  background:rgba(8,14,24,.55);
  border:1px solid var(--line);
  color:var(--ink);
}
[data-tema="glass"] input::placeholder{color:#8492a6}
[data-tema="glass"] input:focus,
[data-tema="glass"] select:focus{
  border-color:rgba(200,21,28,.75);
  background:rgba(8,14,24,.75);
  box-shadow:0 0 0 3px rgba(200,21,28,.22);
}
[data-tema="glass"] select option{background:#111a2b;color:var(--ink)}

[data-tema="glass"] button{
  background:linear-gradient(180deg,#d81c24,#a21116);
  border:1px solid rgba(255,255,255,.18);
  box-shadow:0 8px 22px rgba(200,21,28,.32), inset 0 1px 0 rgba(255,255,255,.22);
}
[data-tema="glass"] button:hover{background:linear-gradient(180deg,#e4232b,#8e0f14)}

[data-tema="glass"] .creds div,
[data-tema="glass"] .seguimiento{
  background:rgba(255,255,255,.07);
  border:1px solid var(--line);
}
[data-tema="glass"] .seguimiento > b{color:#c3cede}
[data-tema="glass"] .seguimiento .fila{border-top:1px solid rgba(255,255,255,.10)}
[data-tema="glass"] .seguimiento .cuenta{color:var(--gold)}
[data-tema="glass"] .item b{color:var(--ink)}
[data-tema="glass"] .item span{color:var(--muted)}
[data-tema="glass"] .ok h2{color:var(--ok)}
[data-tema="glass"] .err{color:var(--err)}
[data-tema="glass"] .wa{background:#1f7a4d;border:1px solid rgba(255,255,255,.18)}
[data-tema="glass"] .wa:hover{background:#196b42}

[data-tema="glass"] footer{color:rgba(233,238,245,.85)}
[data-tema="glass"] .redes a,
[data-tema="glass"] .redes span{color:#e9eef5}
[data-tema="glass"] .redes .tel{
  background:rgba(224,178,60,.90);color:#2a2000;
}

/* Si el navegador no soporta el desenfoque, la tarjeta se opaca para que el
   texto siga siendo legible (no se queda transparente sobre el fondo). */
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  [data-tema="glass"] .card{background:rgba(17,26,43,.92)}
}

/* ==========================================================================
   TEMA "neutro" — vidrio sin color de marca.
   El unico color en pantalla es el escudo de la escuela: asi cualquier logo
   se ve bien sin rediseniar el tema.
   Se adapta SOLO al modo del dispositivo (prefers-color-scheme).
   ========================================================================== */
[data-tema="neutro"]{
  --card:rgba(255,255,255,.72);
  --ink:#1b2431; --muted:#5a6879;
  --line:rgba(22,34,52,.14);
  --accent:#33506e; --accent-d:#24384f;
  --ok:#1e7a4a; --err:#b4433a; --gold:#7d8ea3;
}
[data-tema="neutro"] body{
  background:
    radial-gradient(900px 520px at 8% -12%, #ffffff, transparent 62%),
    radial-gradient(720px 460px at 94% 108%, rgba(150,178,214,.55), transparent 64%),
    linear-gradient(168deg,#f2f6fb 0%,#e4ebf4 54%,#d5deea 100%);
  background-attachment:fixed; color:var(--ink);
}
[data-tema="neutro"] .card{
  background:linear-gradient(180deg, rgba(255,255,255,.86), rgba(255,255,255,.66));
  backdrop-filter:blur(16px) saturate(135%); -webkit-backdrop-filter:blur(16px) saturate(135%);
  border:1px solid var(--line); border-top:1px solid rgba(255,255,255,.98);
  border-radius:18px;
  box-shadow:0 18px 46px rgba(26,40,62,.18), inset 0 1px 0 rgba(255,255,255,.9);
  position:relative; overflow:hidden; color:var(--ink);
}
[data-tema="neutro"] .card::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(115deg, rgba(255,255,255,.6) 0%, rgba(255,255,255,0) 46%);
}
[data-tema="neutro"] .card > *{position:relative}
[data-tema="neutro"] .marca{color:#3f5670;text-shadow:none;letter-spacing:.06em}
[data-tema="neutro"] h1{color:#111a25}
[data-tema="neutro"] input,[data-tema="neutro"] select{
  background:rgba(255,255,255,.88); border:1px solid var(--line); color:var(--ink);
}
[data-tema="neutro"] input:focus,[data-tema="neutro"] select:focus{
  border-color:#6f89a8; background:#fff; box-shadow:0 0 0 3px rgba(111,137,168,.22);
}
[data-tema="neutro"] button{
  background:linear-gradient(180deg,#4a688e,#2b4059);
  background-color:#33506e; border:1px solid rgba(255,255,255,.22);
  box-shadow:0 10px 22px rgba(30,48,72,.28), inset 0 1px 0 rgba(255,255,255,.28);
}
[data-tema="neutro"] button:hover{background-color:#26405c}
[data-tema="neutro"] .creds div,[data-tema="neutro"] .seguimiento{
  background:rgba(255,255,255,.74); border:1px solid var(--line);
}
[data-tema="neutro"] footer{color:#42566d}
[data-tema="neutro"] .redes a,[data-tema="neutro"] .redes span{color:#36485e}
[data-tema="neutro"] .redes .tel{background:rgba(51,80,110,.12);color:#26405c}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  [data-tema="neutro"] .card{background:rgba(255,255,255,.97)}
}

/* ---------- MODO OSCURO AUTOMATICO ----------
   Azul pizarra con luz, NO gris plano: el gris puro en oscuro se ve funebre.
   Los halos dan profundidad y el filo superior de la tarjeta la despega del fondo. */
@media (prefers-color-scheme: dark){
  [data-tema="neutro"]{
    --card:rgba(255,255,255,.10);
    --ink:#eff4fb; --muted:#aebbcd;
    --line:rgba(255,255,255,.18);
    --accent:#e9eff7; --accent-d:#ccd7e5;
    --ok:#5fd39a; --err:#ff9b93; --gold:#cfdaea;
  }
  [data-tema="neutro"] body{
    background:
      radial-gradient(940px 540px at 10% -10%, rgba(126,167,222,.26), transparent 62%),
      radial-gradient(780px 470px at 92% 106%, rgba(158,190,232,.16), transparent 64%),
      linear-gradient(168deg,#1b2637 0%,#151f2e 52%,#0e1621 100%);
    background-attachment:fixed; color:var(--ink);
  }
  [data-tema="neutro"] .card{
    background:linear-gradient(180deg, rgba(255,255,255,.15), rgba(255,255,255,.06));
    backdrop-filter:blur(18px) saturate(130%); -webkit-backdrop-filter:blur(18px) saturate(130%);
    border:1px solid var(--line); border-top:1px solid rgba(255,255,255,.40);
    box-shadow:0 22px 56px rgba(0,0,0,.50), inset 0 1px 0 rgba(255,255,255,.16);
    color:var(--ink);
  }
  [data-tema="neutro"] .card::before{
    background:linear-gradient(115deg, rgba(255,255,255,.16) 0%, rgba(255,255,255,0) 44%);
  }
  [data-tema="neutro"] .marca{color:#d3ddec}
  [data-tema="neutro"] h1{color:#fff}
  [data-tema="neutro"] input,[data-tema="neutro"] select{
    background:rgba(10,16,26,.55); border:1px solid var(--line); color:var(--ink);
  }
  [data-tema="neutro"] input::placeholder{color:#93a2b6}
  [data-tema="neutro"] input:focus,[data-tema="neutro"] select:focus{
    border-color:rgba(190,214,244,.60); background:rgba(10,16,26,.72);
    box-shadow:0 0 0 3px rgba(150,185,230,.20);
  }
  [data-tema="neutro"] select option{background:#1b2637;color:var(--ink)}
  [data-tema="neutro"] button{
    background:linear-gradient(180deg,#f4f8fd,#d3ddec); color:#141d29;
    border:1px solid rgba(255,255,255,.42);
    box-shadow:0 10px 26px rgba(0,0,0,.38), inset 0 1px 0 rgba(255,255,255,.9);
  }
  [data-tema="neutro"] button:hover{background:linear-gradient(180deg,#fff,#c3d1e4)}
  [data-tema="neutro"] .creds div,[data-tema="neutro"] .seguimiento{
    background:rgba(255,255,255,.08); border:1px solid var(--line);
  }
  [data-tema="neutro"] .ok h2{color:var(--ok)}
  [data-tema="neutro"] .err{color:var(--err)}
  [data-tema="neutro"] footer{color:rgba(233,240,250,.86)}
  [data-tema="neutro"] .redes a,[data-tema="neutro"] .redes span{color:#e6edf7}
  [data-tema="neutro"] .redes .tel{background:rgba(255,255,255,.18);color:#f2f6fb}
  [data-tema="neutro"] .logo-img{
    background:rgba(255,255,255,.94);
    box-shadow:0 8px 22px rgba(0,0,0,.45), inset 0 0 0 1px rgba(255,255,255,.35);
  }
  @supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
    [data-tema="neutro"] .card{background:rgba(27,38,55,.95)}
  }
}

/* ---------- El logo (ambos modos) ----------
   Cojin claro detras del escudo: da contraste con CUALQUIER logo (claro, oscuro
   o transparente) y evita tener que ajustar el tema al alta de cada escuela. */
[data-tema="neutro"] .logo-img{
  width:132px; padding:10px; border-radius:16px; box-sizing:border-box;
  background:rgba(255,255,255,.78);
  box-shadow:0 6px 16px rgba(26,40,62,.14), inset 0 0 0 1px rgba(22,34,52,.08);
}


/* --- Logo del gestor de la red en el pie (configurable por escuela) --- */
.cred{display:flex;align-items:center;justify-content:center;gap:7px;flex-wrap:wrap}
.gestor{display:inline-flex;align-items:center;line-height:0}
.gestor img{height:19px;width:auto;display:block}
.gestor img.g-osc{display:none}
/* El tema del CBTA es verde oscuro: siempre la version blanca del logo */
[data-tema="cbta"] .gestor img.g-claro{display:none}
[data-tema="cbta"] .gestor img.g-osc{display:block}
@media (prefers-color-scheme: dark){
  [data-tema="neutro"] .gestor img.g-claro{display:none}
  [data-tema="neutro"] .gestor img.g-osc{display:block}
}