:root{
  --bg:#0f172a; --panel:#1e293b; --text:#f8fafc; --muted:#94a3b8; --line:#334155;
  --accent:#38bdf8; --danger:#ef4444; --ok:#22c55e; --tile-text:#0f172a;
  --gap:10px; --radius:18px;
}
body.hc{ --bg:#000; --panel:#000; --text:#fff; --muted:#ddd; --line:#fff; --tile-text:#000; }
*{box-sizing:border-box; -webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;overflow:hidden;touch-action:manipulation;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}
/* iOS standalone: 100% can be wrong when the keyboard/toolbars animate; dvh is more reliable */
@supports (height:100dvh){ html,body{height:100dvh} }
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
.screen{position:absolute;inset:0;display:none;flex-direction:column;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}
.screen.on{display:flex}

/* ---------- Communicator ---------- */
#msgbar{display:flex;align-items:center;gap:8px;padding:10px;background:var(--panel);border-bottom:2px solid var(--line)}
#msg{flex:1;min-height:64px;background:var(--bg);border:2px solid var(--line);border-radius:14px;padding:10px 14px;font-size:clamp(20px,3.5vw,32px);line-height:1.2;display:flex;flex-wrap:wrap;gap:8px;align-items:center;overflow:auto;max-height:30vh}
#msg .chip{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:4px 10px}
#msg:empty::before{content:"Toca las casillas para armar un mensaje";color:var(--muted);font-size:18px}
.ctl{min-width:64px;height:64px;border-radius:14px;background:var(--line);font-size:30px;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:2px}
.ctl small{font-size:11px;color:var(--muted)}
.ctl.speak{background:var(--ok);color:#052e16}
.ctl.speak small{color:#052e16}
#nav{display:flex;align-items:center;gap:8px;padding:6px 10px;font-size:16px;color:var(--muted)}
#nav .crumb{font-weight:600;color:var(--text)}
#grid{flex:1;display:grid;gap:var(--gap);padding:var(--gap);grid-template-columns:repeat(var(--cols,3),1fr);grid-auto-rows:1fr;overflow:auto}
.tile{border-radius:var(--radius);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;color:var(--tile-text);font-weight:700;font-size:clamp(16px,2.6vw,26px);padding:8px;text-align:center;position:relative;transition:transform .08s;overflow:hidden;border:4px solid transparent;min-height:0}
.tile .sym{font-size:clamp(36px,8vw,76px);line-height:1}
.tile .lbl{word-break:break-word;line-height:1.1}
.tile.folder::after{content:"▸";position:absolute;right:10px;top:6px;font-size:22px;opacity:.6}
.tile.holding{transform:scale(.94);border-color:#fff}
.tile .ring{position:absolute;inset:0;background:rgba(255,255,255,.35);transform-origin:left;transform:scaleX(0);pointer-events:none}
.tile.holding .ring{transition:transform var(--hold,0ms) linear;transform:scaleX(1)}
body.hc .tile{border:3px solid #fff}
#quick{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:var(--gap);padding:0 var(--gap) var(--gap);height:96px}
#quick .tile{font-size:clamp(16px,2.4vw,24px);flex-direction:row;gap:10px}
#quick .tile .sym{font-size:38px}
@media (max-width:640px){
  #quick{height:88px}
  #quick .tile{flex-direction:column;gap:2px;font-size:13px;padding:4px;border-width:3px}
  #quick .tile .sym{font-size:30px}
  #quick .tile .lbl{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}
}
#gear{position:absolute;right:8px;bottom:calc(8px + env(safe-area-inset-bottom));width:34px;height:34px;opacity:.25;font-size:20px;z-index:5}
#toast{position:absolute;left:50%;bottom:120px;transform:translateX(-50%);background:var(--accent);color:#082f49;padding:10px 18px;border-radius:999px;font-weight:600;display:none;z-index:9;max-width:90vw;text-align:center}
#toast.update{cursor:pointer;background:var(--ok);color:#052e16}

/* ---------- Install banner ---------- */
#installBar{display:flex;align-items:center;gap:8px;padding:8px 10px;background:var(--panel);border-top:1px solid var(--line);font-size:14px}
#installBar[hidden]{display:none}
#installBar span{flex:1}

/* ---------- Admin ---------- */
#admin{background:var(--bg);user-select:text;-webkit-user-select:text}
#admin header{display:flex;align-items:center;gap:10px;padding:12px 14px;background:var(--panel);border-bottom:1px solid var(--line);flex-wrap:wrap}
#admin header h1{font-size:18px;margin:0;flex:1;min-width:200px}
#admin main{flex:1;overflow:auto;padding:14px;display:grid;gap:14px;grid-template-columns:1fr;max-width:1100px;width:100%;margin:0 auto}
@media(min-width:860px){#admin main{grid-template-columns:320px 1fr}}
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:14px}
.card h2{font-size:15px;margin:0 0 10px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}
.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:8px}
label.f{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--muted);flex:1;min-width:120px}
input,select,textarea{font:inherit;color:var(--text);background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:8px 10px;width:100%;font-size:16px}
input[type=color]{padding:2px;height:38px}
input[type=checkbox]{width:auto}
.btn{background:var(--line);padding:9px 14px;border-radius:9px;font-weight:600;font-size:14px}
.btn.p{background:var(--accent);color:#082f49}
.btn.d{background:var(--danger);color:#fff}
.btn.s{padding:5px 9px;font-size:13px}
ul.list{list-style:none;margin:0;padding:0}
ul.list li{display:flex;align-items:center;gap:8px;padding:8px;border-bottom:1px solid var(--line);cursor:pointer}
ul.list li.sel{background:var(--bg);border-radius:8px}
ul.list li .sw{width:28px;height:28px;border-radius:7px;display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0}
ul.list li .t{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
ul.list li .t small{color:var(--muted);display:block;font-size:12px}
.muted{color:var(--muted);font-size:13px}
#log{font-size:13px;max-height:260px;overflow:auto;white-space:pre-wrap;font-family:ui-monospace,monospace;background:var(--bg);padding:10px;border-radius:8px}
textarea.io{font-family:ui-monospace,monospace;font-size:12px;height:120px}

/* ---------- Modals ---------- */
.modal{position:absolute;inset:0;background:rgba(0,0,0,.7);display:none;align-items:center;justify-content:center;z-index:20;padding:16px}
.modal.on{display:flex}
.modal .box{background:var(--panel);border-radius:16px;padding:20px;width:min(92vw,380px);text-align:center;max-height:90vh;overflow:auto}
.modal ol{padding-left:20px;margin:6px 0 10px;line-height:1.5}
#modal input{font-size:28px;text-align:center;letter-spacing:.3em;margin:12px 0}
.modal .err{color:var(--danger);min-height:18px;font-size:14px}