/* CasaHub — tema oscuro premium. system-ui, tarjetas con jerarquía, responsive. */

:root {
  --bg: #0a0e14;
  --bg-soft: #0e141d;
  --card: #111825;
  --card-hover: #16202f;
  --border: rgba(148, 163, 184, 0.12);
  --border-strong: rgba(148, 163, 184, 0.22);
  --text: #e8eef5;
  --muted: #8b98a9;
  --faint: #5b6675;
  --accent: #38bdf8;
  --accent-2: #818cf8;
  --grad: linear-gradient(135deg, #22d3ee, #6366f1);
  --ok: #34d399;
  --warn: #fbbf24;
  --danger: #f87171;
  --radius: 18px;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
  --nav-h: 62px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background:
    radial-gradient(1100px 500px at 85% -10%, rgba(56, 118, 248, 0.10), transparent 60%),
    radial-gradient(900px 420px at -10% 0%, rgba(34, 211, 238, 0.07), transparent 55%),
    var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 15px;
  line-height: 1.45;
  min-height: 100svh;
}

a { color: var(--accent); text-decoration: none; }
button { font: inherit; color: inherit; }
input, select { font: inherit; }

/* ---------- Boot / spinner ---------- */
.boot {
  min-height: 80svh;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 12px;
  color: var(--muted);
}
.boot-logo { color: var(--accent); animation: bootPulse 1.6s ease-in-out infinite; }
@keyframes bootPulse { 0%, 100% { opacity: .5; transform: scale(.96); } 50% { opacity: 1; transform: scale(1); } }

/* ---------- Layout ---------- */
.app { max-width: 1060px; margin: 0 auto; padding: 0 18px calc(var(--nav-h) + 28px); }

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 2px 12px;
  margin: 0 -2px;
  background: linear-gradient(var(--bg) 78%, transparent);
  backdrop-filter: blur(8px);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; letter-spacing: .2px; }
.brand-logo {
  width: 34px; height: 34px; border-radius: 10px;
  display: grid; place-content: center;
  background: rgba(56, 189, 248, 0.12);
  color: var(--accent);
  border: 1px solid rgba(56, 189, 248, 0.25);
}
.topbar .spacer { flex: 1; }

.conn-chip {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 12.5px; color: var(--muted);
  border: 1px solid var(--border); border-radius: 999px;
  padding: 5px 11px;
  transition: color .2s, border-color .2s;
}
.conn-chip.live { color: var(--ok); border-color: rgba(52, 211, 153, 0.35); }

.icon-btn {
  background: none; border: 1px solid var(--border); border-radius: 12px;
  width: 36px; height: 36px; display: grid; place-content: center;
  color: var(--muted); cursor: pointer;
  transition: color .15s, border-color .15s, background .15s;
}
.icon-btn:hover { color: var(--text); border-color: var(--border-strong); background: var(--card); }

/* ---------- Navegación ---------- */
.nav {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 30;
  display: flex; justify-content: center; gap: 4px;
  padding: 8px max(10px, env(safe-area-inset-left)) max(8px, env(safe-area-inset-bottom));
  background: rgba(10, 14, 20, 0.9);
  backdrop-filter: blur(14px);
  border-top: 1px solid var(--border);
}
.nav a {
  flex: 1; max-width: 130px;
  display: flex; flex-direction: column; align-items: center; gap: 3px;
  padding: 6px 4px; border-radius: 12px;
  color: var(--faint); font-size: 11px; font-weight: 600;
  transition: color .15s, background .15s;
}
.nav a svg { transition: transform .15s; }
.nav a.active { color: var(--accent); }
.nav a.active svg { transform: translateY(-1px); }
.nav a:hover { color: var(--text); }

@media (min-width: 760px) {
  :root { --nav-h: 0px; }
  .app { padding-bottom: 48px; }
  .nav {
    position: static; border: none; background: none; backdrop-filter: none;
    justify-content: flex-start; padding: 0; gap: 6px;
  }
  .nav a {
    flex: none; flex-direction: row; gap: 8px; font-size: 13.5px;
    padding: 8px 14px; border-radius: 999px; border: 1px solid transparent;
  }
  .nav a.active { background: rgba(56, 189, 248, 0.10); border-color: rgba(56, 189, 248, 0.25); }
}

/* ---------- Tarjetas ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}
.grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); margin-top: 14px; }

.device-card {
  display: flex; flex-direction: column; gap: 12px;
  cursor: pointer;
  transition: transform .18s ease, border-color .18s ease, background .18s ease;
}
.device-card:hover { transform: translateY(-2px); border-color: var(--border-strong); background: var(--card-hover); }
.device-card:active { transform: translateY(0); }

.device-head { display: flex; align-items: center; gap: 10px; }
.device-icon {
  width: 38px; height: 38px; border-radius: 12px; flex: none;
  display: grid; place-content: center;
  background: rgba(129, 140, 248, 0.10);
  border: 1px solid rgba(129, 140, 248, 0.20);
  color: var(--accent-2);
}
.device-icon.tinaco { background: rgba(34, 211, 238, 0.10); border-color: rgba(34, 211, 238, 0.22); color: #22d3ee; }
.device-icon.timbre { background: rgba(251, 191, 36, 0.10); border-color: rgba(251, 191, 36, 0.22); color: var(--warn); }
.device-title { min-width: 0; }
.device-title h3 { margin: 0; font-size: 15.5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.device-title .room { font-size: 12px; color: var(--muted); }

.device-body { display: flex; align-items: center; gap: 16px; min-height: 96px; }
.metric-big { font-size: 34px; font-weight: 700; letter-spacing: -0.5px; line-height: 1.1; }
.metric-sub { color: var(--muted); font-size: 13px; margin-top: 3px; }
.metric-list { display: flex; flex-direction: column; gap: 4px; }
.metric-kv { display: flex; gap: 8px; align-items: baseline; }
.metric-kv .k { color: var(--muted); font-size: 12.5px; min-width: 90px; text-transform: capitalize; }
.metric-kv .v { font-weight: 650; font-size: 15px; }

.device-foot {
  display: flex; align-items: center; gap: 10px;
  font-size: 12px; color: var(--faint);
  border-top: 1px solid var(--border); padding-top: 10px; margin-top: auto;
}
.device-foot .spacer { flex: 1; }

/* Badge online/offline con pulso */
.badge { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 600; }
.badge .dot { width: 8px; height: 8px; border-radius: 50%; position: relative; }
.badge.on { color: var(--ok); }
.badge.on .dot { background: var(--ok); }
.badge.on .dot::after {
  content: ""; position: absolute; inset: -4px; border-radius: 50%;
  border: 1.5px solid var(--ok); opacity: .6;
  animation: pulse 2s ease-out infinite;
}
.badge.off { color: var(--faint); }
.badge.off .dot { background: var(--faint); }
@keyframes pulse { 0% { transform: scale(.5); opacity: .7; } 80%, 100% { transform: scale(1.5); opacity: 0; } }

/* RSSI (barritas de señal) */
.rssi { display: inline-flex; align-items: flex-end; gap: 2px; height: 12px; }
.rssi i { width: 3px; border-radius: 1px; background: var(--faint); opacity: .35; }
.rssi i:nth-child(1) { height: 4px; } .rssi i:nth-child(2) { height: 7px; }
.rssi i:nth-child(3) { height: 10px; } .rssi i:nth-child(4) { height: 12px; }
.rssi.q1 i:nth-child(-n+1), .rssi.q2 i:nth-child(-n+2),
.rssi.q3 i:nth-child(-n+3), .rssi.q4 i:nth-child(-n+4) { background: var(--accent); opacity: 1; }
.rssi.q1 i:nth-child(-n+1) { background: var(--danger); }

/* Gauge (anillo) */
.gauge { position: relative; width: 96px; height: 96px; flex: none; }
.gauge svg { transform: rotate(-90deg); }
.gauge .track { stroke: rgba(148, 163, 184, 0.14); }
.gauge .fill { transition: stroke-dashoffset .8s cubic-bezier(.22,1,.36,1), stroke .4s; }
.gauge .label {
  position: absolute; inset: 0; display: grid; place-content: center; text-align: center;
}
.gauge .label b { font-size: 22px; letter-spacing: -0.5px; }
.gauge .label span { font-size: 10px; color: var(--muted); }

.trend { display: inline-flex; align-items: center; gap: 5px; font-size: 12.5px; font-weight: 600; }
.trend.sube { color: var(--ok); }
.trend.baja { color: var(--warn); }
.trend.estable { color: var(--muted); }

/* Timbrazo en vivo: campana que vibra */
@keyframes ring { 0%, 100% { transform: rotate(0); } 20% { transform: rotate(14deg); } 40% { transform: rotate(-12deg); } 60% { transform: rotate(8deg); } 80% { transform: rotate(-6deg); } }
.ringing svg { animation: ring .7s ease-in-out 3; transform-origin: top center; }

/* ---------- Encabezados de sección ---------- */
.page-head { display: flex; align-items: center; gap: 12px; margin: 18px 0 4px; flex-wrap: wrap; }
.page-head h2 { margin: 0; font-size: 20px; letter-spacing: -0.3px; }
.page-head .sub { color: var(--muted); font-size: 13px; }
.page-head .spacer { flex: 1; }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 1px solid var(--border-strong); border-radius: 12px;
  background: var(--card); color: var(--text);
  padding: 9px 16px; font-weight: 600; font-size: 13.5px; cursor: pointer;
  transition: background .15s, border-color .15s, transform .1s, opacity .15s;
}
.btn:hover { background: var(--card-hover); }
.btn:active { transform: scale(.98); }
.btn:disabled { opacity: .5; cursor: default; }
.btn.primary {
  background: var(--grad); border: none; color: #06121c;
}
.btn.primary:hover { filter: brightness(1.08); }
.btn.danger { color: var(--danger); border-color: rgba(248, 113, 113, 0.35); }
.btn.danger:hover { background: rgba(248, 113, 113, 0.10); }
.btn.small { padding: 6px 12px; font-size: 12.5px; border-radius: 10px; }

/* Chips de filtro / rango */
.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  border: 1px solid var(--border); background: none; color: var(--muted);
  border-radius: 999px; padding: 6px 14px; font-size: 12.5px; font-weight: 600; cursor: pointer;
  transition: all .15s;
}
.chip:hover { color: var(--text); border-color: var(--border-strong); }
.chip.active { color: var(--accent); background: rgba(56, 189, 248, 0.10); border-color: rgba(56, 189, 248, 0.35); }

/* ---------- Formularios ---------- */
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 12.5px; color: var(--muted); font-weight: 600; }
.field input, .field select {
  background: var(--bg-soft); color: var(--text);
  border: 1px solid var(--border-strong); border-radius: 12px;
  padding: 10px 13px; outline: none; width: 100%;
  transition: border-color .15s, box-shadow .15s;
}
.field input:focus, .field select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15);
}
.form-grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.hint { font-size: 12px; color: var(--faint); }

/* ---------- Login ---------- */
.login-wrap { min-height: 88svh; display: grid; place-content: center; }
.login-card { width: min(360px, 88vw); text-align: center; padding: 30px 26px; }
.login-card .brand-logo { width: 54px; height: 54px; border-radius: 16px; margin: 0 auto 12px; }
.login-card h1 { margin: 0 0 4px; font-size: 22px; letter-spacing: -0.4px; }
.login-card p { margin: 0 0 20px; color: var(--muted); font-size: 13.5px; }
.login-card form { display: flex; flex-direction: column; gap: 12px; }
.login-error { color: var(--danger); font-size: 13px; min-height: 18px; margin: 4px 0 0; }
.shake { animation: shake .4s; }
@keyframes shake { 0%,100%{transform:translateX(0)} 25%{transform:translateX(-6px)} 75%{transform:translateX(6px)} }
.notice { border-color: rgba(251, 191, 36, 0.35); background: rgba(251, 191, 36, 0.06); text-align: left; }
.notice code { background: rgba(148,163,184,.12); border-radius: 6px; padding: 1px 6px; font-size: 12.5px; }

/* ---------- Detalle ---------- */
.back { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); font-size: 13px; font-weight: 600; margin-top: 14px; cursor: pointer; background: none; border: none; padding: 4px 0; }
.back:hover { color: var(--text); }
.detail-hero { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.detail-hero .gauge { width: 120px; height: 120px; }
.detail-hero .gauge .label b { font-size: 28px; }
.stat-grid { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); margin-top: 14px; }
.stat { background: var(--bg-soft); border: 1px solid var(--border); border-radius: 14px; padding: 11px 13px; }
.stat .k { font-size: 11.5px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .4px; }
.stat .v { font-size: 16px; font-weight: 700; margin-top: 3px; }

.chart-box { margin-top: 12px; }
.chart-box svg { display: block; width: 100%; height: auto; }
.chart-empty { color: var(--faint); text-align: center; padding: 42px 0; font-size: 13.5px; }

.section { margin-top: 16px; }
.section h3 { margin: 0 0 12px; font-size: 15px; }
.danger-zone { border-color: rgba(248, 113, 113, 0.25); }

/* ---------- Eventos (timeline) ---------- */
.timeline { display: flex; flex-direction: column; margin-top: 14px; }
.event-row {
  display: flex; align-items: center; gap: 13px;
  padding: 12px 6px; border-bottom: 1px solid var(--border);
  animation: fadeIn .3s ease;
}
.event-row:last-child { border-bottom: none; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }
.event-dot { width: 34px; height: 34px; border-radius: 11px; flex: none; display: grid; place-content: center; }
.event-dot.press { background: rgba(251, 191, 36, 0.12); color: var(--warn); }
.event-dot.alerta { background: rgba(248, 113, 113, 0.12); color: var(--danger); }
.event-dot.ok { background: rgba(52, 211, 153, 0.12); color: var(--ok); }
.event-dot.conexion { background: rgba(129, 140, 248, 0.12); color: var(--accent-2); }
.event-main { flex: 1; min-width: 0; }
.event-main .t { font-weight: 600; font-size: 14px; }
.event-main .d { color: var(--muted); font-size: 12.5px; }
.event-time { color: var(--faint); font-size: 12px; white-space: nowrap; }

/* ---------- Sistema ---------- */
.sys-rows { display: flex; flex-direction: column; }
.sys-row { display: flex; align-items: center; gap: 12px; padding: 12px 2px; border-bottom: 1px solid var(--border); }
.sys-row:last-child { border-bottom: none; }
.sys-row .name { font-weight: 600; font-size: 14px; flex: 1; }
.sys-row .desc { color: var(--muted); font-size: 12.5px; }
.status-pill { display: inline-flex; align-items: center; gap: 7px; font-size: 12.5px; font-weight: 700; padding: 4px 12px; border-radius: 999px; }
.status-pill .dot { width: 7px; height: 7px; border-radius: 50%; }
.status-pill.ok { color: var(--ok); background: rgba(52, 211, 153, 0.10); }
.status-pill.ok .dot { background: var(--ok); }
.status-pill.off { color: var(--faint); background: rgba(148, 163, 184, 0.08); }
.status-pill.off .dot { background: var(--faint); }
.status-pill.bad { color: var(--danger); background: rgba(248, 113, 113, 0.10); }
.status-pill.bad .dot { background: var(--danger); }

.steps { margin: 0; padding: 0 0 0 4px; list-style: none; counter-reset: paso; }
.steps li { position: relative; padding: 0 0 18px 40px; counter-increment: paso; }
.steps li::before {
  content: counter(paso);
  position: absolute; left: 0; top: -2px;
  width: 26px; height: 26px; border-radius: 50%;
  display: grid; place-content: center;
  background: rgba(56, 189, 248, 0.12); color: var(--accent);
  font-size: 13px; font-weight: 700;
  border: 1px solid rgba(56, 189, 248, 0.3);
}
.steps li:not(:last-child)::after {
  content: ""; position: absolute; left: 12.5px; top: 26px; bottom: 2px; width: 1px;
  background: var(--border-strong);
}
.steps b { display: block; font-size: 14px; }
.steps p { margin: 3px 0 0; color: var(--muted); font-size: 13px; }
.steps code { background: rgba(148,163,184,.12); border-radius: 6px; padding: 1px 6px; font-size: 12px; }

/* ---------- Toasts ---------- */
.toasts {
  position: fixed; top: 14px; left: 50%; transform: translateX(-50%);
  z-index: 100; display: flex; flex-direction: column; gap: 8px; align-items: center;
  pointer-events: none; width: min(420px, 92vw);
}
.toast {
  background: var(--card-hover); border: 1px solid var(--border-strong);
  border-radius: 14px; padding: 11px 18px; font-size: 13.5px; font-weight: 600;
  box-shadow: var(--shadow); display: flex; gap: 9px; align-items: center;
  animation: toastIn .25s ease;
}
.toast.ok { border-color: rgba(52, 211, 153, 0.4); }
.toast.warn { border-color: rgba(251, 191, 36, 0.45); }
.toast.bad { border-color: rgba(248, 113, 113, 0.45); }
@keyframes toastIn { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: none; } }
.toast.out { opacity: 0; transition: opacity .3s; }

/* ---------- Modal de confirmación ---------- */
.modal-back {
  position: fixed; inset: 0; z-index: 90;
  background: rgba(4, 7, 12, 0.7); backdrop-filter: blur(4px);
  display: grid; place-content: center; padding: 20px;
  animation: fadeIn .15s ease;
}
.modal { width: min(380px, 92vw); }
.modal h3 { margin: 0 0 8px; }
.modal p { margin: 0 0 18px; color: var(--muted); font-size: 13.5px; }
.modal .row { display: flex; gap: 10px; justify-content: flex-end; }

.empty { text-align: center; color: var(--faint); padding: 48px 12px; }
.empty svg { opacity: .4; margin-bottom: 10px; }

@media (max-width: 420px) {
  .app { padding-left: 12px; padding-right: 12px; }
  .metric-big { font-size: 30px; }
}

/* Configuración agrupada por tema: con muchos campos, un grid plano obliga a
   leerlos todos para encontrar uno. */
.cfg-group { margin-bottom: 20px; }
.cfg-group:last-of-type { margin-bottom: 0; }
.cfg-group h4 {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--accent);
}
.cfg-group .hint { margin: 8px 0 0; }

/* Aviso corto junto a un valor (ej. "sin señal" en la distancia medida). */
.pill-warn {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 7px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  background: rgba(251, 191, 36, 0.14);
  color: var(--warn);
  vertical-align: middle;
}

/* El contenedor de la gráfica reserva su alto SIEMPRE. Sin esto, cualquier
   estado vacío (cargando, sin datos, error) lo encoge y toda la página da un
   salto: se percibe como si parpadeara la app entera, no la gráfica. */
#chart {
  min-height: 260px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Dispositivo sin conexión: señal, uptime y firmware siguen siendo datos
   útiles, pero son los de la última vez que reportó. Se atenúan para que no
   se lean como si fueran de ahora. */
.stat-grid.stale { opacity: .55; }
.stale-note { margin: 8px 0 0; color: var(--faint); font-style: italic; }