:root{
  --bg:#eef3fa;--bg2:#dfe9f7;--card:#ffffff;--tx:#17202e;--mu:#6b778c;--ac:#1e88e5;--ok:#2e9e5b;--bad:#d64545;--bd:#e2e8f0;
  --shadow:0 4px 18px rgba(30,60,110,.08);--accent-now:var(--ac)
}
@media(prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0c111c;--bg2:#131b2e;--card:#172033;--tx:#e8edf6;--mu:#93a0b8;--bd:#27324b;--shadow:0 4px 22px rgba(0,0,0,.45)}}
:root[data-theme="dark"]{
  --bg:#0c111c;--bg2:#131b2e;--card:#172033;--tx:#e8edf6;--mu:#93a0b8;--bd:#27324b;--shadow:0 4px 22px rgba(0,0,0,.45)}
*{box-sizing:border-box}
html{color-scheme:light dark}
:root[data-theme="light"]{color-scheme:light}
:root[data-theme="dark"]{color-scheme:dark}
body{margin:0;min-height:100vh;color:var(--tx);font:16px/1.4 system-ui,Segoe UI,sans-serif;
  background:linear-gradient(180deg,var(--bg2),var(--bg) 320px) no-repeat,var(--bg);transition:background .3s,color .3s}
header{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:12px 16px;
  background:color-mix(in srgb,var(--card) 85%,transparent);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--bd);position:sticky;top:0;z-index:5}
h1{font-size:1.15rem;margin:0}h2{font-size:1.05rem;margin:0}
main{max-width:1150px;margin:0 auto;padding:16px}
.btn{background:var(--ac);color:#fff;border:0;border-radius:10px;padding:9px 16px;font:inherit;cursor:pointer;transition:filter .15s}
.btn:hover{filter:brightness(1.08)}
.btn.ghost{background:transparent;color:var(--ac);border:1px solid var(--bd)}
.btn.small{padding:5px 10px;font-size:.85rem}
a.btn{text-decoration:none;display:inline-block}
.hdr-actions{display:flex;gap:8px;flex-wrap:wrap}
.muted{color:var(--mu)}.center{text-align:center;margin-top:40px}
.summary{color:var(--mu);margin:0 0 14px;font-size:.92rem}
.summary b{color:var(--tx)}
.msg{background:#fdecec;color:var(--bad);border:1px solid #f3bcbc;padding:10px 14px;border-radius:10px;margin-bottom:12px}

/* ---------- Tarjetas ---------- */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}
.card{--tone:var(--ac);position:relative;overflow:hidden;background:var(--card);border:1px solid var(--bd);
  border-radius:20px;padding:16px;display:flex;flex-direction:column;gap:14px;box-shadow:var(--shadow);
  transition:transform .2s,box-shadow .3s,border-color .3s,opacity .3s}
.card>*{position:relative;z-index:1}
.card.loading{min-height:120px;justify-content:center;align-items:center}
.card.off .body{opacity:.4;pointer-events:none;filter:grayscale(.6)}
.card.offline{opacity:.55}
.card.offline .body{pointer-events:none}
.card.on:hover{transform:translateY(-2px)}

/* color de cada modo */
.card.mode-cold{--tone:#27a6e8}
.card.mode-hot,.card.mode-heat{--tone:#f0702a}
.card.mode-wet,.card.mode-dehumidify{--tone:#2bb5a0}
.card.mode-wind,.card.mode-fan{--tone:#7b8cf0}
.card.mode-auto,.card.mode-eco{--tone:#43b26b}
.card.mode-sleep{--tone:#8a6fe0}

/* tarjeta activa: borde y brillo animados */
.card.on{border-color:color-mix(in srgb,var(--tone) 55%,var(--bd));
  background:linear-gradient(160deg,color-mix(in srgb,var(--tone) 12%,var(--card)),var(--card) 55%);
  animation:glow 3.2s ease-in-out infinite}
@keyframes glow{
  0%,100%{box-shadow:var(--shadow),0 0 0 0 color-mix(in srgb,var(--tone) 0%,transparent)}
  50%{box-shadow:var(--shadow),0 0 22px 2px color-mix(in srgb,var(--tone) 38%,transparent)}}

/* partículas (copos / burbujas / calor) */
.fx{position:absolute;inset:0;pointer-events:none;overflow:hidden;z-index:0!important}
.fx i{position:absolute;bottom:-12px;width:7px;height:7px;border-radius:50%;
  background:color-mix(in srgb,var(--tone) 55%,transparent);opacity:0;animation:rise 5s linear infinite}
.fx i:nth-child(1){left:8%;animation-delay:0s}
.fx i:nth-child(2){left:24%;animation-delay:1.4s;width:5px;height:5px}
.fx i:nth-child(3){left:41%;animation-delay:2.6s}
.fx i:nth-child(4){left:58%;animation-delay:.8s;width:5px;height:5px}
.fx i:nth-child(5){left:74%;animation-delay:3.4s}
.fx i:nth-child(6){left:90%;animation-delay:2s;width:5px;height:5px}
@keyframes rise{0%{transform:translateY(0) translateX(0);opacity:0}15%{opacity:.7}100%{transform:translateY(-260px) translateX(14px);opacity:0}}
.card.mode-cold .fx i{animation-name:fall;bottom:auto;top:-12px}
@keyframes fall{0%{transform:translateY(0) translateX(0);opacity:0}15%{opacity:.8}100%{transform:translateY(260px) translateX(-14px);opacity:0}}

/* encabezado */
.top{display:flex;align-items:center;gap:12px}
.ttl{flex:1;min-width:0}
.name{font-weight:700;font-size:1.05rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ico{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;flex:none;
  background:var(--bd);color:var(--mu);transition:background .3s,color .3s}
.card.on .ico{background:color-mix(in srgb,var(--tone) 20%,transparent);color:var(--tone)}
.ico svg{display:block}
.ico.spin svg{animation:spin 1.6s linear infinite}
.card.on .ico.spin svg{animation-duration:1.2s}
@keyframes spin{to{transform:rotate(360deg)}}
.dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--bad);margin-right:6px}
.dot.on{background:var(--ok)}

.switch{position:relative;width:50px;height:28px;flex:none}
.switch input{opacity:0;width:0;height:0}
.switch span{position:absolute;inset:0;background:#b8c1d1;border-radius:28px;cursor:pointer;transition:.2s}
.switch span:before{content:"";position:absolute;width:22px;height:22px;left:3px;top:3px;background:#fff;border-radius:50%;transition:.2s}
.switch input:checked+span{background:var(--ok)}
.switch input:checked+span:before{transform:translateX(22px)}

/* temperatura */
.temp{display:flex;align-items:center;justify-content:center;gap:18px}
.temp .val{font-size:2.8rem;font-weight:300;min-width:120px;text-align:center;font-variant-numeric:tabular-nums}
.card.on .temp .val{color:var(--tone)}
.temp button{width:44px;height:44px;border-radius:50%;border:1px solid var(--bd);background:var(--card);color:var(--tx);
  font-size:1.5rem;cursor:pointer;transition:transform .1s,background .2s,border-color .2s}
.temp button:hover{border-color:var(--tone);color:var(--tone)}
.temp button:active{transform:scale(.9)}
.cur{text-align:center;color:var(--mu);font-size:.85rem;margin-top:-8px}
.lbl{font-size:.75rem;text-transform:uppercase;letter-spacing:.06em;color:var(--mu);margin-bottom:6px}

/* modos y potencia */
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{border:1px solid var(--bd);background:transparent;color:var(--tx);border-radius:12px;padding:6px 12px;font:inherit;font-size:.86rem;cursor:pointer;
  display:inline-flex;align-items:center;gap:6px;transition:background .2s,border-color .2s,transform .1s}
.chip:hover{border-color:var(--tone)}
.chip:active{transform:scale(.95)}
.chip.sel{background:var(--tone);border-color:var(--tone);color:#fff}
.modes .chip{flex-direction:column;gap:2px;min-width:64px;padding:8px 6px;font-size:.74rem;flex:1}
.modes .ci{font-size:1.3rem;line-height:1}

/* ---------- Administración ---------- */
.panel{background:var(--card);border:1px solid var(--bd);border-radius:16px;padding:16px;margin-bottom:16px;box-shadow:var(--shadow)}
.panel-head{display:flex;justify-content:space-between;align-items:center}
.admin-list .item{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 0;border-top:1px solid var(--bd)}
.admin-list small{color:var(--mu);display:block}
.login{max-width:360px;margin:40px auto}
.login label,.cfg label{display:block;margin:12px 0;font-size:.9rem}
.login input,.cfg input:not([type=checkbox]),.cfg select{display:block;width:100%;margin-top:4px;padding:9px;border-radius:8px;border:1px solid var(--bd);background:var(--bg);color:var(--tx);font:inherit}
.cfg{border:1px solid var(--bd);border-radius:12px;padding:10px 14px;margin:12px 0}
.cfg summary{cursor:pointer;font-weight:600}
.cfg .chk{display:flex;gap:8px;align-items:center}
.ok{color:var(--ok)}
.row{display:flex;justify-content:flex-end;gap:8px;margin-top:8px}
.err{color:var(--bad);font-size:.9rem}

/* ---------- Móvil y tablet ---------- */
html{-webkit-text-size-adjust:100%}
button,a.btn,.switch span,.chip{touch-action:manipulation;-webkit-tap-highlight-color:transparent}
body{padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right);padding-bottom:env(safe-area-inset-bottom)}
.grid{grid-template-columns:repeat(auto-fill,minmax(min(100%,300px),1fr))}
.btn{min-height:40px}
h1{min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* pantallas táctiles: sin efectos hover y controles más grandes */
@media(hover:none){
  .card.on:hover{transform:none}
  .chip:hover,.temp button:hover{border-color:var(--bd);color:inherit}
  .chip.sel:hover{border-color:var(--tone)}
  .switch{width:56px;height:32px}
  .switch span:before{width:26px;height:26px}
  .switch input:checked+span:before{transform:translateX(24px)}
}

/* tablet (hasta 900px): 2 columnas */
@media(max-width:900px){
  main{padding:14px}
  .grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
}

/* móvil (hasta 600px): 1 columna */
@media(max-width:600px){
  header{padding:10px 12px}
  h1{font-size:1.05rem}
  .btn{padding:8px 12px}
  #btnTheme .tl{display:none}
  main{padding:12px}
  .grid{grid-template-columns:1fr;gap:12px}
  .card{padding:14px;border-radius:18px}
  .temp .val{font-size:3rem}
  .temp button{width:52px;height:52px;font-size:1.7rem}
  .hdr-actions{flex-wrap:nowrap;flex:none}
  h1{flex:1}
  .adm-t{display:none}
  h1{font-size:1rem}
  .modes{flex-wrap:nowrap;gap:5px}
  .modes .chip{min-width:0;padding:10px 2px;font-size:.68rem}
  .chip{padding:9px 14px;font-size:.92rem}
  .panel{padding:14px;border-radius:14px}
  .panel-head{gap:8px}
  .admin-list .item{padding:12px 0}
  .admin-list .item>div{min-width:0;word-break:break-all}
  .row{flex-direction:column-reverse}
  .row .btn{width:100%}
  .login{margin:20px auto}
}

/* móvil muy pequeño */
@media(max-width:360px){
  .hdr-actions .btn{padding:8px 10px;font-size:.9rem}
  .temp .val{min-width:100px;font-size:2.6rem}
}

/* horizontal en móvil: cabecera no fija para ganar espacio */
@media(max-height:480px) and (orientation:landscape){
  header{position:static}
  .grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media(prefers-reduced-motion:reduce){.card.on,.ico.spin svg,.fx i{animation:none!important}}