/* Panel de control IoT - Práctica 4B */

:root {
  --azul: #1b396a;          /* azul institucional */
  --guinda: #9d2449;
  --fondo: #eef1f6;
  --tarjeta: #ffffff;
  --texto: #15243f;
  --suave: #6f7880;
  --borde: #d5dbe4;
  --ok: #2e7d32;
  --error: #c62828;
  --aviso: #b26a00;
  --radio: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--fondo);
  color: var(--texto);
  line-height: 1.4;
}

/* ---------- Encabezado ---------- */
.encabezado {
  background: var(--azul);
  color: #fff;
  padding: 18px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.encabezado h1 { margin: 0; font-size: 1.4rem; }
.encabezado p  { margin: 2px 0 0; color: #c6d2e6; font-size: .9rem; }

.pastilla {
  padding: 5px 12px;
  border-radius: 999px;
  font-size: .8rem;
  font-weight: 700;
}
.pastilla--gris  { background: #ffffff33; color: #fff; }
.pastilla--verde { background: #c8e6c9; color: #1b5e20; }
.pastilla--rojo  { background: #ffcdd2; color: #8e0000; }

/* ---------- Estructura ---------- */
.contenido {
  max-width: 1100px;
  margin: 0 auto;
  padding: 18px 16px 8px;
  display: grid;
  gap: 16px;
}
.rejilla {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}
.tarjeta {
  background: var(--tarjeta);
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  padding: 18px;
  box-shadow: 0 2px 6px #1b396a14;
}
.tarjeta h2 {
  margin: 0 0 14px;
  font-size: 1.1rem;
  color: var(--guinda);
}
.nota    { color: var(--suave); font-size: .85rem; margin: 8px 0 0; }
.centrado { text-align: center; }

/* ---------- Configuración ---------- */
details summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--azul);
}
.formulario { display: grid; gap: 12px; margin-top: 14px; }
.formulario label { display: grid; gap: 4px; font-size: .9rem; }
.formulario input {
  padding: 10px;
  border: 1px solid var(--borde);
  border-radius: 8px;
  font-size: 1rem;
  font-family: Consolas, monospace;
}
fieldset {
  border: 1px dashed var(--borde);
  border-radius: 10px;
  padding: 10px 12px;
  display: grid;
  gap: 10px;
}
legend { font-size: .85rem; color: var(--suave); padding: 0 4px; }

/* ---------- Botones ---------- */
.fila-botones {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}
.envolver { justify-content: center; margin-top: 12px; }

.boton {
  border: 1px solid var(--borde);
  background: #f5f7fa;
  color: var(--texto);
  padding: 9px 14px;
  border-radius: 10px;
  font-size: .95rem;
  cursor: pointer;
  transition: transform .1s, background .2s;
}
.boton:hover   { background: #e8edf5; }
.boton:active  { transform: scale(.96); }
.boton:disabled { opacity: .55; cursor: not-allowed; }
.boton--primario {
  background: var(--azul);
  border-color: var(--azul);
  color: #fff;
  font-weight: 700;
}
.boton--primario:hover { background: #24497f; }
.boton--grande { padding: 13px 26px; font-size: 1.05rem; min-width: 200px; }
.chip { padding: 6px 11px; font-size: .85rem; }

/* ---------- LED RGB ---------- */
.rgb-cabecera {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 14px;
}
.muestra-color {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: #000;
  border: 4px solid #e3e7ee;
  box-shadow: 0 0 0 0 transparent;
  transition: background .2s, box-shadow .2s;
}
.selector-color {
  display: grid;
  gap: 4px;
  justify-items: center;
  font-size: .85rem;
  color: var(--suave);
  cursor: pointer;
}
.selector-color input {
  width: 64px;
  height: 40px;
  border: none;
  background: none;
  cursor: pointer;
}

.deslizador {
  display: grid;
  grid-template-columns: 22px 1fr 40px;
  align-items: center;
  gap: 10px;
  margin: 8px 0;
  font-weight: 700;
}
.deslizador output { text-align: right; font-family: Consolas, monospace; }

input[type="range"] {
  width: 100%;
  height: 10px;
  border-radius: 999px;
  appearance: none;
  -webkit-appearance: none;
  outline: none;
  cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--azul);
  box-shadow: 0 1px 3px #0004;
}
input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--azul);
}
.deslizador--r input { background: linear-gradient(90deg, #000, #ff0000); }
.deslizador--g input { background: linear-gradient(90deg, #000, #00c800); }
.deslizador--b input { background: linear-gradient(90deg, #000, #0050ff); }

.paleta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}
.paleta button {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 2px solid #c9d0da;
  background: var(--c);
  cursor: pointer;
  color: #fff;
  font-weight: 700;
}
.paleta button:hover { transform: scale(1.12); }

/* ---------- Buzzer ---------- */
.lectura-grande {
  text-align: center;
  font-size: 2.6rem;
  font-weight: 800;
  color: var(--azul);
  font-family: Consolas, monospace;
}
.lectura-grande small { font-size: 1rem; color: var(--suave); }
.deslizador-tono {
  margin-top: 10px;
  background: linear-gradient(90deg, #cfd8dc, #ffb300, #d81b60);
}
.escala {
  display: flex;
  justify-content: space-between;
  font-size: .75rem;
  color: var(--suave);
  margin-top: 4px;
}

/* ---------- Relé ---------- */
.rele {
  display: grid;
  justify-items: center;
  gap: 14px;
  padding: 6px 0;
}
.foco {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: #e0e0e0;
  border: 4px solid #cfd8dc;
  transition: background .25s, box-shadow .25s;
}
.foco.encendido {
  background: #fdd835;
  border-color: #f9a825;
  box-shadow: 0 0 28px 8px #fdd83599;
}
.interruptor { position: relative; width: 84px; height: 44px; cursor: pointer; }
.interruptor input { opacity: 0; width: 0; height: 0; }
.riel {
  position: absolute;
  inset: 0;
  background: #b0bec5;
  border-radius: 999px;
  transition: background .25s;
}
.riel::before {
  content: "";
  position: absolute;
  width: 36px;
  height: 36px;
  left: 4px;
  top: 4px;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 1px 3px #0005;
  transition: transform .25s;
}
.interruptor input:checked + .riel { background: var(--ok); }
.interruptor input:checked + .riel::before { transform: translateX(40px); }
.interruptor input:focus-visible + .riel { outline: 3px solid #1e88e5; outline-offset: 2px; }
.estado-rele { margin: 0; font-weight: 800; letter-spacing: 1px; color: var(--suave); }
.estado-rele.encendido { color: var(--ok); }

/* ---------- Barra de envío ---------- */
.barra-envio {
  display: grid;
  gap: 12px;
  justify-items: center;
  text-align: center;
  position: sticky;
  bottom: 8px;
  border-color: #b8c4d6;
}
.resumen { font-family: Consolas, monospace; font-size: .95rem; color: var(--azul); }
.auto { display: flex; align-items: center; gap: 6px; font-size: .9rem; cursor: pointer; }
.mensaje { margin: 0; font-weight: 600; min-height: 1.4em; }
.mensaje.ok    { color: var(--ok); }
.mensaje.error { color: var(--error); }
.mensaje.aviso { color: var(--aviso); }

/* ---------- Telemetría ---------- */
.telemetria {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
}
.telemetria > div {
  background: #f5f7fa;
  border-radius: 10px;
  padding: 10px 12px;
  display: grid;
  gap: 4px;
}
.etiqueta { font-size: .75rem; color: var(--suave); text-transform: uppercase; }
.mini-color { width: 26px; height: 26px; border-radius: 50%; background: #000; border: 2px solid #ccd; }

/* ---------- Pie ---------- */
.pie {
  text-align: center;
  color: var(--suave);
  font-size: .8rem;
  padding: 10px 16px 24px;
}

@media (max-width: 480px) {
  .boton--grande { width: 100%; }
  .lectura-grande { font-size: 2.1rem; }
}