/* ==========================================================
   ElectroEdu Bolivia — Sistema visual "Tablero"
   Paleta: azul plano profundo + cobre + verde voltaje
   ========================================================== */

:root {
  --navy-deep:    #0E2233;
  --navy-panel:   #16324A;
  --navy-panel-2: #1D3E59;
  --copper:       #C97A3D;
  --copper-light: #E2A567;
  --volt:         #4FAE7D;
  --volt-light:   #7FCBA2;
  --parchment:    #F2EEE4;
  --ink:          #1C2126;
  --cable-grey:   #7C8A99;
  --alert:        #C0463C;
  --line:         rgba(255,255,255,0.08);

  --font-head: 'Space Grotesk', 'Segoe UI', sans-serif;
  --font-body: 'IBM Plex Sans', 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--parchment);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  margin: 0 0 .4em 0;
  font-weight: 600;
  letter-spacing: -0.01em;
}

a { color: inherit; text-decoration: none; }

.tag-mono {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--cable-grey);
  letter-spacing: 0.04em;
}

/* ---------- Pantallas públicas (login / registro) ---------- */

.pantalla-publica {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(circle at 15% 20%, rgba(201,122,61,0.18), transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(79,174,125,0.16), transparent 40%),
    var(--navy-deep);
  padding: 2rem 1rem;
}

.tarjeta-auth {
  background: var(--parchment);
  border-radius: 4px;
  width: 100%;
  max-width: 460px;
  padding: 2.2rem 2.2rem 2rem;
  border-top: 4px solid var(--copper);
  box-shadow: 0 20px 50px rgba(0,0,0,0.35);
}

.marca {
  display: flex;
  align-items: center;
  gap: .6rem;
  margin-bottom: 1.4rem;
}

.marca .rayo {
  width: 34px; height: 34px;
  background: var(--copper);
  color: var(--navy-deep);
  border-radius: 3px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; font-weight: 700;
  font-family: var(--font-head);
}

.marca .texto strong { display: block; font-family: var(--font-head); font-size: 1.05rem; }
.marca .texto span { display: block; font-size: .72rem; color: var(--cable-grey); font-family: var(--font-mono); }

.campo { margin-bottom: 1.1rem; }
.campo label {
  display: block;
  font-size: .82rem;
  margin-bottom: .35rem;
  color: var(--navy-panel);
  font-weight: 600;
}
.campo input,
.campo select {
  width: 100%;
  padding: .65rem .8rem;
  border: 1.5px solid #D7D0C0;
  border-radius: 3px;
  background: #fff;
  font-family: var(--font-body);
  font-size: .95rem;
  color: var(--ink);
}
.campo input:focus,
.campo select:focus {
  outline: none;
  border-color: var(--copper);
  box-shadow: 0 0 0 3px rgba(201,122,61,0.18);
}
.fila-dos { display: grid; grid-template-columns: 1fr 1fr; gap: .8rem; }
@media (max-width: 480px) { .fila-dos { grid-template-columns: 1fr; } }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .75rem 1.2rem;
  border-radius: 3px;
  border: none;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: .95rem;
  cursor: pointer;
  width: 100%;
}
.btn-primario { background: var(--copper); color: #fff; }
.btn-primario:hover { background: #B36A31; }
.btn-secundario { background: transparent; border: 1.5px solid var(--navy-panel); color: var(--navy-panel); }

.enlace-alterno { text-align: center; margin-top: 1.1rem; font-size: .9rem; color: var(--cable-grey); }
.enlace-alterno a { color: var(--copper); font-weight: 600; }

.alerta {
  padding: .7rem .9rem;
  border-radius: 3px;
  font-size: .88rem;
  margin-bottom: 1rem;
}
.alerta-error { background: #FBE7E4; color: var(--alert); border: 1px solid #F1C3BC; }
.alerta-ok { background: #E4F5EC; color: #2C7A53; border: 1px solid #BFE6D2; }

/* ---------- Layout del panel (dashboard) ---------- */

.panel {
  display: grid;
  grid-template-columns: 250px 1fr;
  min-height: 100vh;
}
@media (max-width: 860px) {
  .panel { grid-template-columns: 1fr; }
  .barra-lateral { position: static; }
}

.barra-lateral {
  background: var(--navy-deep);
  color: var(--parchment);
  padding: 1.4rem 1.1rem;
  display: flex;
  flex-direction: column;
}
.barra-lateral .marca .texto strong { color: var(--parchment); }

.nav-panel { margin-top: 1.6rem; display: flex; flex-direction: column; gap: .2rem; flex: 1; }
.nav-panel a {
  padding: .65rem .8rem;
  border-radius: 3px;
  font-size: .92rem;
  color: #C7D3DC;
  border-left: 3px solid transparent;
  display: flex; align-items: center; gap: .6rem;
}
.nav-panel a:hover { background: var(--navy-panel); color: #fff; }
.nav-panel a.activo { background: var(--navy-panel); color: #fff; border-left-color: var(--copper); }
.nav-panel .icono { font-family: var(--font-mono); font-size: .85rem; color: var(--copper-light); }

.usuario-lateral {
  border-top: 1px solid var(--line);
  padding-top: 1rem;
  margin-top: 1rem;
  font-size: .82rem;
}
.usuario-lateral strong { display: block; color: #fff; font-size: .9rem; }
.usuario-lateral .salir { color: var(--copper-light); font-weight: 600; display: inline-block; margin-top: .4rem; }

.contenido { padding: 1.8rem 2.2rem 3rem; }

.barra-superior {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.6rem;
  padding-bottom: 1.1rem;
  border-bottom: 1px solid #DED6C4;
}
.barra-superior .estado { font-family: var(--font-mono); font-size: .78rem; color: var(--cable-grey); }
.estado .punto { color: var(--volt); }

.rejilla-modulos {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(255px, 1fr));
  gap: 1.1rem;
}

.modulo {
  background: #fff;
  border: 1px solid #E4DECE;
  border-radius: 4px;
  padding: 1.2rem 1.2rem 1.1rem;
  position: relative;
  border-left: 4px solid var(--navy-panel-2);
}
.modulo.domotica  { border-left-color: var(--volt); }
.modulo.electricidad { border-left-color: var(--copper); }
.modulo.registro { border-left-color: var(--navy-panel-2); }

.modulo .cabecera-modulo {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: .5rem;
}
.modulo h3 { font-size: 1.02rem; }
.modulo p { font-size: .88rem; color: #4B5560; margin: 0 0 .9rem; }
.modulo .ir { font-size: .85rem; font-weight: 700; color: var(--navy-panel); }
.modulo .ir:hover { color: var(--copper); }

.chip {
  font-family: var(--font-mono);
  font-size: .68rem;
  background: var(--parchment);
  color: var(--navy-panel);
  padding: .15rem .5rem;
  border-radius: 2px;
  border: 1px solid #E4DECE;
}

.seccion-titulo { display: flex; align-items: baseline; gap: .7rem; margin: 2rem 0 1rem; }
.seccion-titulo .tag-mono { border-bottom: 1px dashed #C8BFA8; padding-bottom: .15rem; flex: 1; }

table.tabla-servicios { width: 100%; border-collapse: collapse; background: #fff; }
table.tabla-servicios th, table.tabla-servicios td {
  text-align: left; padding: .7rem .9rem; border-bottom: 1px solid #EDE7D8; font-size: .9rem;
}
table.tabla-servicios th { font-family: var(--font-mono); font-size: .72rem; color: var(--cable-grey); text-transform: none; }
table.tabla-servicios tr:hover td { background: #FAF7EF; }

.badge-cat {
  font-family: var(--font-mono);
  font-size: .68rem;
  padding: .2rem .5rem;
  border-radius: 2px;
  display: inline-block;
}
.badge-cat.domotica { background: #E4F5EC; color: #2C7A53; }
.badge-cat.electricidad { background: #FCEEE1; color: #A25A22; }
.badge-cat.electronica { background: #E7EEF6; color: #2E5A94; }
.badge-cat.robotica { background: #F1E7F6; color: #6F3D94; }
.badge-cat.mantenimiento { background: #F1EEE4; color: #6A5F45; }

.pie-panel { margin-top: 2.5rem; font-size: .78rem; color: var(--cable-grey); text-align: center; }

/* ==========================================================
   v2 — Portada, acceso, invitado y material del docente
   ========================================================== */

.btn-chico { width: auto; padding: .5rem 1rem; font-size: .85rem; }
.btn-google { background: #fff; color: #3c4043; border: 1px solid #dadce0; }
.btn-google[disabled] { opacity: .6; cursor: not-allowed; }
.g-wrap { display: flex; justify-content: center; }

.sep-o { display: flex; align-items: center; gap: .7rem; margin: 1.1rem 0; color: var(--cable-grey); font-size: .8rem; }
.sep-o::before, .sep-o::after { content: ""; flex: 1; height: 1px; background: #D7D0C0; }

.aviso-invitado {
  background: #FFF6E8; border: 1px solid #F0D9B5; border-left: 4px solid var(--copper);
  border-radius: 3px; padding: .9rem 1.1rem; margin-bottom: 1.4rem;
}
.aviso-invitado p { margin: 0 0 .6rem; font-size: .92rem; }
.aviso-invitado p:last-child { margin: 0; }
.aviso-invitado a { color: var(--copper); }

.acciones-fila { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; }
.acciones-fila form { margin: 0; }

.nav-panel a.bloqueado { opacity: .55; }
a.marca { color: inherit; }

.tabla-wrap { overflow-x: auto; }

.filtros { display: flex; gap: .5rem; flex-wrap: wrap; margin-bottom: 1.4rem; }
.chip.activo { background: var(--copper); color: #fff; border-color: var(--copper); }
.buscador {
  margin-left: auto; padding: .4rem .7rem; border: 1.5px solid #D7D0C0; border-radius: 3px;
  font-family: var(--font-body); font-size: .85rem; min-width: 190px;
}
.buscador:focus { outline: none; border-color: var(--copper); box-shadow: 0 0 0 3px rgba(201,122,61,.18); }

.form-material { display: grid; grid-template-columns: 1fr 1fr; gap: 0 .9rem; margin-top: .6rem; }
@media (max-width: 600px) { .form-material { grid-template-columns: 1fr; } }

/* ---------- Portada ---------- */
.pt { background: var(--navy-deep); color: var(--parchment); }
.pt-hero {
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 32px 32px;
  padding-bottom: 4rem;
}
.pt-nav { max-width: 1120px; margin: 0 auto; padding: 1.2rem 1.4rem; display: flex; justify-content: space-between; align-items: center; }
.pt-nav .marca { margin: 0; }
.pt-nav .marca .texto strong { color: var(--parchment); }
.pt-nav .enlace {
  font-size: .9rem; font-weight: 600; color: #C7D3DC;
  border: 1.5px solid rgba(255,255,255,.25); padding: .45rem .9rem; border-radius: 3px;
}
.pt-nav .enlace:hover { border-color: var(--copper-light); color: #fff; }

.pt-grid {
  max-width: 1120px; margin: 0 auto; padding: 2.2rem 1.4rem 0;
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: 3rem; align-items: center;
}
@media (max-width: 900px) { .pt-grid { grid-template-columns: 1fr; gap: 2rem; } }

.pt h1 { font-size: clamp(2rem, 4.4vw, 3.1rem); line-height: 1.1; color: #fff; margin-bottom: .9rem; }
.pt-lead { color: #B9C7D3; font-size: 1.05rem; max-width: 34rem; margin: 0 0 1.6rem; }

.pt-acceso {
  background: var(--parchment); color: var(--ink);
  border-top: 4px solid var(--copper); border-radius: 4px;
  padding: 1.3rem 1.4rem 1.2rem; max-width: 400px;
  box-shadow: 0 18px 40px rgba(0,0,0,.35);
}
.pt-acceso h2 { font-size: 1.05rem; margin-bottom: .9rem; }
.pt-acceso .opcion { margin-bottom: .7rem; }
.pt-acceso .btn.opcion { display: flex; }
.pt-nota { font-size: .8rem; color: var(--cable-grey); margin: .3rem 0 0; }

.pt-circuito {
  background: var(--navy-panel); border: 1px solid var(--line); border-radius: 4px; padding: 1.2rem 1.2rem 1.3rem;
}
.circ { width: 100%; height: auto; display: block; }
.circ .cable { fill: none; stroke: var(--cable-grey); stroke-width: 4; stroke-linecap: round; stroke-linejoin: round; }
.circ.cerrado .cable { stroke: var(--copper-light); stroke-dasharray: 10 8; animation: fluir .9s linear infinite; }
@keyframes fluir { to { stroke-dashoffset: -36; } }
.circ .placa { stroke: #fff; stroke-width: 4; stroke-linecap: round; }
.circ .borne { fill: var(--navy-deep); stroke: var(--copper); stroke-width: 3; }
.circ .palanca {
  stroke: #fff; stroke-width: 5; stroke-linecap: round; cursor: pointer;
  transform-origin: 170px 60px; transform: rotate(-30deg); transition: transform .3s ease;
}
.circ.cerrado .palanca { transform: rotate(0deg); }
.circ .lampara { fill: #12293D; stroke: var(--cable-grey); stroke-width: 4; transition: fill .3s, stroke .3s; }
.circ.cerrado .lampara { fill: #4A3320; stroke: var(--copper-light); }
.circ .filamento { stroke: var(--cable-grey); stroke-width: 4; stroke-linecap: round; transition: stroke .3s; }
.circ.cerrado .filamento { stroke: #FFE2B0; }
.circ .lampara-brillo { opacity: 0; transition: opacity .35s; }
.circ.cerrado .lampara-brillo { opacity: 1; }
.circ .et { fill: #B9C7D3; font-family: var(--font-mono); font-size: 13px; }

.pt-estado { color: #C7D3DC; font-size: .92rem; min-height: 1.5em; margin: .8rem 0 .7rem; }
.pt-btn-circuito { width: auto; color: var(--parchment); border-color: rgba(255,255,255,.35); }
.pt-btn-circuito:hover { border-color: var(--copper-light); }

.pt-cuerpo { background: var(--parchment); color: var(--ink); padding: 3rem 1.4rem 2rem; }
.pt-seccion { max-width: 1120px; margin: 0 auto 2.6rem; }
.pt-seccion h2 { font-size: 1.35rem; margin-bottom: 1.1rem; }
.pt-pie { background: var(--navy-deep); color: var(--cable-grey); font-size: .8rem; text-align: center; padding: 1.4rem 1rem; }

:focus-visible { outline: 3px solid var(--copper-light); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) {
  .circ.cerrado .cable { animation: none; }
  .circ .palanca { transition: none; }
}

/* ---------- Páginas legales (privacidad / términos) ---------- */
.legal { max-width: 760px; }
.legal-titulo { font-size: 1.9rem; margin: .3rem 0 .8rem; }
.legal-lead { font-size: 1.02rem; color: #4B5560; margin-bottom: 1.6rem; }
.legal h2 { font-size: 1.08rem; margin: 1.7rem 0 .5rem; color: var(--navy-panel); }
.legal p, .legal li { font-size: .95rem; color: #333B42; }
.legal ul { padding-left: 1.2rem; margin: .4rem 0 .9rem; }
.legal li { margin-bottom: .35rem; }
.legal a { color: var(--copper); text-decoration: underline; text-underline-offset: 2px; }

.pt-pie a { color: var(--copper-light); text-decoration: underline; text-underline-offset: 2px; }
.pt-pie-salto { display: none; }
@media (max-width: 480px) { .pt-pie-salto { display: block; content: ""; margin-bottom: .3rem; } }

.acepto {
  display: flex; align-items: flex-start; gap: .55rem;
  font-size: .84rem; color: var(--navy-panel); margin: .3rem 0 1.1rem;
}
.acepto input { margin-top: .2rem; width: auto; }
.acepto a { color: var(--copper); font-weight: 600; }

/* ---------- Control de dispositivos ESP8266 ---------- */
.estado-conexion {
  display: inline-flex; align-items: center; gap: .35rem;
  font-family: var(--font-mono); font-size: .68rem; padding: .18rem .5rem;
  border-radius: 2px; background: #EDE7D8; color: var(--cable-grey);
}
.estado-conexion .punto-conexion { width: 7px; height: 7px; border-radius: 50%; background: var(--cable-grey); }
.estado-conexion.en-linea { background: #E4F5EC; color: #2C7A53; }
.estado-conexion.en-linea .punto-conexion { background: var(--volt); box-shadow: 0 0 0 3px rgba(79,174,125,.25); }
.estado-conexion.desconectado { background: #FBE7E4; color: var(--alert); }
.estado-conexion.desconectado .punto-conexion { background: var(--alert); }

.interruptor { display: flex; align-items: center; gap: .7rem; cursor: pointer; margin: .8rem 0 .5rem; user-select: none; }
.interruptor input { position: absolute; opacity: 0; width: 0; height: 0; }
.interruptor .rail {
  width: 46px; height: 26px; background: #D7D0C0; border-radius: 20px; position: relative; flex-shrink: 0; transition: background .2s;
}
.interruptor .perilla {
  position: absolute; top: 3px; left: 3px; width: 20px; height: 20px; border-radius: 50%; background: #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,.3); transition: transform .2s;
}
.interruptor input:checked + .rail { background: var(--volt); }
.interruptor input:checked + .rail .perilla { transform: translateX(20px); }
.interruptor input:disabled + .rail { opacity: .6; }
.interruptor .txt-estado { font-size: .88rem; font-weight: 600; color: var(--navy-panel); }

.detalle-dispositivo { margin: .3rem 0 .6rem; }
.token-caja { margin-top: .5rem; font-size: .85rem; }
.token-caja summary { cursor: pointer; color: var(--navy-panel); font-weight: 600; }
.token-valor { word-break: break-all; background: var(--parchment); padding: .45rem .6rem; border-radius: 3px; margin: .5rem 0; }

/* ---------- Barra de progreso de subida ---------- */
.barra-subida { margin-top: .8rem; background: #E4DECE; border-radius: 3px; position: relative; height: 22px; overflow: hidden; }
.barra-subida[hidden] { display: none; }
.barra-subida .relleno { height: 100%; width: 0; background: var(--volt); transition: width .15s linear; }
.barra-subida .txt { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; font-family: var(--font-mono); font-size: .72rem; color: var(--ink); }

/* ---------- Perfil: avatar, foto y formularios ---------- */
.avatar {
  width: 38px; height: 38px; border-radius: 50%; object-fit: cover; flex-shrink: 0;
  border: 2px solid var(--copper); background: var(--navy-panel);
}
.avatar-ini {
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-head); font-weight: 700; font-size: .85rem; color: var(--copper-light);
}
.avatar-grande { width: 120px; height: 120px; font-size: 2rem; border-width: 3px; }
.avatar-fila { display: flex; align-items: center; gap: .65rem; color: inherit; margin-bottom: .6rem; }
.avatar-fila strong { display: block; }
.avatar-fila:hover strong { color: var(--copper-light); }

.perfil-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.1rem; align-items: start; }
.foto-bloque { display: flex; gap: 1.1rem; align-items: center; flex-wrap: wrap; margin-top: .6rem; }
.foto-form { display: flex; flex-direction: column; gap: .5rem; flex: 1; min-width: 180px; }
.foto-form input[type=file] { font-size: .85rem; max-width: 100%; }
.enlace-sec { margin-left: .8rem; font-size: .85rem; color: var(--copper); font-weight: 600; }