:root{
  --bg:#14161b; --panel:#1e2128; --panel2:#262a33; --line:#333845;
  --fg:#e7e9ee; --muted:#9aa3b2; --accent:#2d7ff9; --ok:#2ecc71; --ko:#e74c3c;
}
*{box-sizing:border-box}
body{margin:0;font-family:Segoe UI,system-ui,Arial,sans-serif;background:var(--bg);color:var(--fg)}
header{display:flex;align-items:center;gap:24px;background:var(--panel);
  padding:12px 22px;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.brand{font-weight:700;font-size:18px}
.brand{display:inline-flex;align-items:center;gap:8px;flex:none}
.brand .brandtext{white-space:nowrap}
.brand .hl{color:var(--accent)}
.brand .ic{font-size:20px;color:var(--accent)}
nav{display:flex;gap:18px}
nav a{color:var(--muted);text-decoration:none;font-weight:600;padding:4px 2px}
nav a:hover{color:var(--fg)}
.userbox{margin-left:auto;display:flex;align-items:center;gap:12px}
.login-wrap{max-width:360px;margin:80px auto;padding:0 20px}
.login-wrap input{width:100%;margin-bottom:12px}
.perm-table td,.perm-table th{text-align:center}
.perm-table td:first-child,.perm-table th:first-child{text-align:left}
.volbox{display:flex;align-items:center;gap:10px;flex:1;max-width:420px}
.volbox input[type=range]{
  -webkit-appearance:none;appearance:none;flex:1;height:6px;border-radius:4px;cursor:pointer;
  background:linear-gradient(var(--accent),var(--accent)) left/var(--fill,80%) 100% no-repeat,var(--line);
}
.volbox input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;appearance:none;width:16px;height:16px;border-radius:50%;
  background:#fff;border:2px solid var(--accent);box-shadow:0 1px 3px rgba(0,0,0,.4)}
.volbox input[type=range]::-moz-range-thumb{
  width:14px;height:14px;border-radius:50%;background:#fff;border:2px solid var(--accent)}
.volbox .volval{width:34px;text-align:right;font-size:15px}
.volbox.vol-saving .volval{color:var(--accent)}
main{max-width:1100px;margin:24px auto;padding:0 20px}
footer{max-width:1100px;margin:30px auto;padding:14px 20px;color:var(--muted);
  border-top:1px solid var(--line);font-size:13px}
h1{font-size:22px;margin:0 0 18px}
h2{font-size:16px;margin:24px 0 10px;color:var(--muted);text-transform:uppercase;letter-spacing:.5px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:10px;
  padding:18px;margin-bottom:18px}
.grid{display:grid;gap:14px}
.grid.cards{grid-template-columns:repeat(auto-fill,minmax(180px,1fr))}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:18px;display:block}
.stat .n{font-size:30px;font-weight:700}
.stat .l{color:var(--muted);font-size:13px;margin-top:4px;display:flex;align-items:center;gap:6px}
a.stat{text-decoration:none;color:inherit;transition:border-color .12s,background .12s}
a.stat:hover{border-color:var(--accent);background:var(--panel2)}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--line);font-size:14px}
th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase}
tr:hover td{background:var(--panel2)}
a{color:var(--accent)}
input,select{background:var(--panel2);border:1px solid var(--line);color:var(--fg);
  border-radius:7px;padding:8px 10px;font-size:14px}
input:focus,select:focus{outline:1px solid var(--accent)}
input[type=file]{padding:0 10px;height:35px;line-height:33px;font-size:13px}
input[type=file]::file-selector-button{background:var(--panel);border:1px solid var(--line);
  color:var(--fg);border-radius:6px;padding:4px 12px;margin-right:10px;cursor:pointer;font-size:13px}
input[type=file]::file-selector-button:hover{border-color:var(--accent)}
label{font-size:13px;color:var(--muted);display:block;margin-bottom:4px}
.row{display:flex;gap:12px;flex-wrap:wrap;align-items:end}
.row .f{display:flex;flex-direction:column}
button,.btn{background:var(--accent);color:#fff;border:0;border-radius:7px;
  padding:9px 16px;font-size:14px;font-weight:600;cursor:pointer;text-decoration:none;display:inline-block}
button:hover,.btn:hover{filter:brightness(1.1)}
.btn.ghost{background:var(--panel2);border:1px solid var(--line);color:var(--fg)}
.btn.danger{background:transparent;border:1px solid var(--ko);color:var(--ko);padding:5px 10px;font-size:13px}
.iconbtn{padding:6px 9px}
.iconbtn .ic{font-size:16px;width:1em;height:1em}
.pill{display:inline-block;padding:2px 9px;border-radius:20px;font-size:12px;font-weight:600}
.pill.ok{background:rgba(46,204,113,.15);color:var(--ok)}
.pill.ko{background:rgba(231,76,60,.15);color:var(--ko)}
.pill.un{background:rgba(154,163,178,.15);color:var(--muted)}
.muted{color:var(--muted)}
.days{display:flex;gap:6px;flex-wrap:wrap}
.days label{display:flex;align-items:center;gap:5px;background:var(--panel2);
  border:1px solid var(--line);border-radius:7px;padding:6px 10px;color:var(--fg);margin:0;cursor:pointer}
.notice{background:rgba(45,127,249,.12);border:1px solid var(--accent);
  border-radius:8px;padding:12px 14px;margin-bottom:16px;font-size:14px}
.checklist{columns:2;gap:10px}
.checklist label{display:flex;align-items:center;gap:8px;color:var(--fg);margin-bottom:6px}
audio{width:100%;margin-top:10px}

/* ===== sistema icone (SVG come CSS mask, ricolorate con currentColor) ===== */
.ic{display:inline-block;width:1.15em;height:1.15em;vertical-align:-0.18em;flex:none;
  background-color:currentColor;
  -webkit-mask:var(--i) center/contain no-repeat; mask:var(--i) center/contain no-repeat}
.ic-dashboard{--i:url(/static/icons/icons8-home-100.svg)}
.ic-area{--i:url(/static/icons/icons8-folder-100.svg)}
.ic-zone{--i:url(/static/icons/icons8-grid-view-100.svg)}
.ic-speaker{--i:url(/static/icons/icons8-sound-speaker-100.svg)}
.ic-catalog{--i:url(/static/icons/icons8-music-library-100.svg)}
.ic-webradio{--i:url(/static/icons/icons8-radio-100.svg)}
.ic-campaign{--i:url(/static/icons/icons8-public-speaking-100.svg)}
.ic-live{--i:url(/static/icons/icons8-streaming-audio-100.svg)}
.ic-users{--i:url(/static/icons/icons8-user-group-100.svg)}
.ic-logout{--i:url(/static/icons/icons8-logout-100.svg)}
.ic-play{--i:url(/static/icons/icons8-play-100.svg)}
.ic-pause{--i:url(/static/icons/icons8-pause-100.svg)}
.ic-stop{--i:url(/static/icons/icons8-stop-100.svg)}
.ic-prev{--i:url(/static/icons/icons8-skip-to-start-100.svg)}
.ic-next{--i:url(/static/icons/icons8-end-100.svg)}
.ic-volume{--i:url(/static/icons/icons8-sound-speaker-100.svg)}
.ic-mute{--i:url(/static/icons/icons8-mute-100.svg)}
.ic-integrazione{--i:url(/static/icons/icons8-share-100.svg)}
.ic-wrench{--i:url(/static/icons/icons8-wrench-100.svg)}
.ic-loop{--i:url(/static/icons/icons8-repeat-100.svg)}
.ic-mic{--i:url(/static/icons/icons8-microphone-100.svg)}
.ic-radio{--i:url(/static/icons/icons8-radio-100.svg)}
.ic-evac{--i:url(/static/icons/icons8-alarm-100.svg)}
.ic-tts{--i:url(/static/icons/icons8-speech-bubble-100.svg)}
.ic-add{--i:url(/static/icons/icons8-add-song-100.svg)}
.ic-plus{--i:url(/static/icons/icons8-plus-100.svg)}
.ic-delete{--i:url(/static/icons/icons8-delete-100.svg)}
.ic-edit{--i:url(/static/icons/icons8-edit-pencil-100.svg)}
.ic-search{--i:url(/static/icons/icons8-search-100.svg)}
.ic-filter{--i:url(/static/icons/icons8-filter-100.svg)}
.ic-upload{--i:url(/static/icons/icons8-upload-100.svg)}
.ic-clean{--i:url(/static/icons/icons8-trash-100.svg)}
.ic-schedule{--i:url(/static/icons/icons8-clock-100.svg)}
.ic-calendar{--i:url(/static/icons/icons8-calendar-100.svg)}
.ic-daterange{--i:url(/static/icons/icons8-date-span-100.svg)}
.ic-settings{--i:url(/static/icons/icons8-settings-100.svg)}
.ic-ok{--i:url(/static/icons/icons8-done-100.svg)}
.ic-error{--i:url(/static/icons/icons8-unavailable-100.svg)}
.ic-info{--i:url(/static/icons/icons8-info-100.svg)}
.ic-refresh{--i:url(/static/icons/icons8-refresh-100.svg)}
.ic-close{--i:url(/static/icons/icons8-close-100.svg)}
.ic-file{--i:url(/static/icons/icons8-file-100.svg)}
.ic-deploy{--i:url(/static/icons/icons8-streaming-audio-100.svg)}
/* nav e bottoni con icona */
nav a{display:inline-flex;align-items:center;gap:7px}
button,.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px}
.btn .ic,button .ic{font-size:15px}
h1 .ic,h2 .ic{vertical-align:-0.12em;margin-right:6px}
/* catalogo: vista ad albero cartelle/brani */
.cart{margin:2px 0 2px 2px;padding-left:10px;border-left:2px solid var(--line)}
.cart>summary{cursor:pointer;list-style:none;display:flex;align-items:center;gap:8px;
  padding:6px 6px;border-radius:6px;font-weight:600}
.cart>summary::-webkit-details-marker{display:none}
.cart>summary::before{content:'▸';color:var(--muted);font-size:11px;transition:transform .12s;flex:none}
.cart[open]>summary::before{transform:rotate(90deg)}
.cart>summary:hover{background:var(--panel2)}
.cart>summary .ic-area,.cart>summary .ic-catalog{color:var(--accent)}
.cart-root{border-left:none;margin-left:0;padding-left:0}
.cart-root>.cart-body{padding-left:14px}
.cart .cart-nome{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cart-body{padding-left:16px}
.trk{display:flex;align-items:center;gap:10px;padding:5px 6px;border-radius:6px}
.trk:hover{background:var(--panel2)}
.trk .trk-nome{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.trk .trk-dur{font-size:13px;width:56px;text-align:right;flex:none}
.trk select{font-size:13px;max-width:180px;padding:5px 8px}
.pick-wrap{max-width:520px}
.pick-filter{width:100%;margin-bottom:8px}
.pick-tree{max-height:280px;overflow:auto;background:var(--panel2);border:1px solid var(--line);
  border-radius:8px;padding:8px}
.pick-tree .bp-item{cursor:pointer}
.pl-ordine{list-style:none;margin:8px 0 0;padding:0;counter-reset:pl;max-width:520px}
.pl-ord-item{display:flex;align-items:center;gap:8px;padding:5px 8px;background:var(--panel2);
  border:1px solid var(--line);border-radius:7px;margin-bottom:6px}
.pl-ord-item::before{counter-increment:pl;content:counter(pl);color:var(--muted);font-size:12px;
  width:20px;text-align:right;flex:none}
.pl-ord-nome{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px}
.pl-ord-item .iconbtn{padding:3px 9px;font-size:12px}
.trk .iconbtn{padding:5px 8px}
/* selettore "Aggiungi dispositivo": 4 opzioni a pulsante (no tendina) */
.addsel{display:flex;gap:10px;flex-wrap:wrap}
.addopt{background:var(--panel2);border:1px solid var(--line);color:var(--fg);border-radius:9px;
  padding:12px 16px;font-size:14px;font-weight:600;cursor:pointer;
  display:inline-flex;align-items:center;gap:8px}
.addopt:hover{filter:none;border-color:var(--accent)}
.addopt.active{background:var(--accent);color:#fff;border-color:var(--accent)}
.addopt .ic{font-size:16px}
.addpanel{margin-top:18px;border-top:1px solid var(--line);padding-top:18px}
/* picker brani (playlist): menu a tendina multi-selezione con filtro */
.bp-dropdown{position:relative;max-width:460px}
.bp-toggle{width:100%;display:flex;justify-content:space-between;align-items:center;gap:10px;
  background:var(--panel2);border:1px solid var(--line);color:var(--fg);border-radius:7px;
  padding:9px 12px;font-size:14px;font-weight:400;cursor:pointer;text-align:left}
.bp-toggle:hover{filter:none;border-color:var(--accent)}
.bp-caret{color:var(--muted);transition:transform .15s}
.bp-dropdown.open .bp-caret{transform:rotate(180deg)}
.bp-panel{position:absolute;z-index:30;top:calc(100% + 4px);left:0;right:0;
  background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:10px;
  box-shadow:0 8px 24px rgba(0,0,0,.45)}
.bp-panel .bp-filter{width:100%}
.bp-list{max-height:240px;overflow:auto;margin-top:8px;
  padding:4px;background:var(--panel2);border:1px solid var(--line);border-radius:7px}
.bp-item{display:flex;align-items:center;gap:9px;padding:5px 7px;color:var(--fg);
  cursor:pointer;border-radius:5px;font-size:14px}
.bp-item:hover{background:var(--panel)}
.bp-item input{margin:0}
.bp-count{color:var(--muted);font-size:13px;margin-top:8px}
/* broadcast: albero Area/Zona/Speaker nel menu a tendina */
.pill.warn{background:rgba(243,156,18,.18);color:#f39c12}
.bc-tree{max-height:300px;overflow:auto;margin-top:8px;padding:4px;
  background:var(--panel2);border:1px solid var(--line);border-radius:7px}
.bc-node{display:flex;align-items:center;gap:8px;padding:4px 7px;color:var(--fg);
  cursor:pointer;border-radius:5px;font-size:14px}
.bc-node:hover{background:var(--panel)}
.bc-node input{margin:0}
.bc-lvl-z{padding-left:22px}
.bc-lvl-s{padding-left:42px;font-size:13px;color:var(--muted)}
.bc-area + .bc-area{margin-top:4px;border-top:1px solid var(--line);padding-top:4px}
/* popup / modale */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.55);z-index:100;
  display:flex;align-items:center;justify-content:center;padding:20px}
.modal-box{background:var(--panel);border:1px solid var(--line);border-radius:12px;
  width:100%;max-width:560px;max-height:80vh;display:flex;flex-direction:column;
  box-shadow:0 14px 44px rgba(0,0,0,.55)}
.modal-head{display:flex;justify-content:space-between;align-items:center;gap:12px;
  padding:13px 18px;border-bottom:1px solid var(--line)}
.modal-x{background:transparent;border:0;color:var(--muted);cursor:pointer;padding:2px 4px}
.modal-x:hover{color:var(--fg)}
.modal-body{padding:16px 18px;overflow:auto;line-height:1.5}
/* toast notifiche (in basso a destra, conferma con OK) */
.toastbox{position:fixed;right:20px;bottom:20px;z-index:300;display:flex;flex-direction:column;
  gap:10px;max-width:400px;width:calc(100% - 40px)}
.toast{background:var(--panel);border:1px solid var(--line);border-left:4px solid var(--accent);
  border-radius:10px;box-shadow:0 12px 34px rgba(0,0,0,.55);padding:13px 15px;color:var(--fg);
  font-size:14px;display:flex;flex-direction:column;gap:10px}
.toast.err{border-left-color:var(--ko)}
.toast.ok{border-left-color:var(--ok)}
.toast .toastmsg{line-height:1.45;white-space:pre-wrap;word-break:break-word}
.toast .toastbtns{display:flex;justify-content:flex-end}
.toast .toastbtns .btn{padding:5px 18px}
@keyframes toastin{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.toast{animation:toastin .18s ease}

/* ---- menu utente a tendina (header) ---- */
.usermenu{margin-left:auto;position:relative}
.usermenu>summary{list-style:none;cursor:pointer;display:inline-flex;align-items:center;gap:8px;
  color:var(--fg);font-weight:600;padding:6px 12px;border:1px solid var(--line);border-radius:8px;background:var(--panel2)}
.usermenu>summary::-webkit-details-marker{display:none}
.usermenu>summary .caret{color:var(--muted);font-size:11px}
.usermenu[open]>summary{border-color:var(--accent)}
.usermenu .um-panel{position:absolute;right:0;top:calc(100% + 6px);background:var(--panel);
  border:1px solid var(--line);border-radius:10px;min-width:210px;padding:6px;z-index:20;
  box-shadow:0 10px 28px rgba(0,0,0,.4)}
.usermenu .um-head{padding:8px 10px;color:var(--muted);font-size:12px;border-bottom:1px solid var(--line);margin-bottom:4px}
.usermenu .um-panel a{display:flex;align-items:center;gap:9px;padding:9px 10px;border-radius:7px;
  color:var(--fg);text-decoration:none;font-weight:600}
.usermenu .um-panel a:hover{background:var(--panel2)}

/* ---- sotto-schede (tabs) ---- */
.subtabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin:4px 0 18px}
.subtabs button{background:none;border:none;color:var(--muted);font-weight:600;font-size:15px;
  padding:10px 18px;cursor:pointer;border-bottom:2px solid transparent;display:inline-flex;align-items:center;gap:7px}
.subtabs button:hover{color:var(--fg)}
.subtabs button.active{color:var(--fg);border-bottom-color:var(--accent)}
.tabpane{display:none}
.tabpane.active{display:block}