/* Messaggi dello Studio – grafica essenziale, chiara, pensata prima per il computer. */
:root {
  --navy: #14213D; --navy-2: #1C2D50; --petrol: #1F6F78; --petrol-dark: #175A62; --petrol-soft: #E1EEEF;
  --ink: #14213D; --muted: #64708A; --line: #DFE5E5; --line-2: #ECF0EF; --field: #CBD4D6;
  --ground: #F3F5F4; --card: #FFFFFF;
  --ok: #2E6E4C; --warn-bg: #FBF1DE; --warn-fg: #7E4F0A; --bad: #A23B3B; --bad-bg: #F8E5E3; --bad-fg: #8C2F2F;
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", "Helvetica Neue", Roboto, Arial, sans-serif;
  --serif: "Iowan Old Style", Charter, "Palatino Linotype", Palatino, Georgia, serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --r-sm: 6px; --r: 9px; --r-lg: 14px;
  --shadow-1: 0 1px 2px rgba(20, 33, 61, .05);
  --ring: 0 0 0 3px rgba(31, 111, 120, .22);
  font-family: var(--sans); color: var(--ink); -webkit-font-smoothing: antialiased;
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body { margin: 0; font-size: 14px; line-height: 1.5; background: var(--ground); display: flex; flex-direction: column; }
h1, h2 { font-family: var(--serif); font-weight: 600; color: var(--navy); margin: 0; }
h1 { font-size: 26px; } h2 { font-size: 18px; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; border: 1px solid var(--line); background: var(--card); border-radius: var(--r-sm); padding: 7px 13px; }
button:hover { border-color: var(--field); }
button:disabled { opacity: .55; cursor: default; }
button.primario { background: var(--petrol); border-color: var(--petrol); color: #fff; font-weight: 600; }
button.primario:hover { background: var(--petrol-dark); }
button.link { border: 0; background: none; color: var(--petrol-dark); padding: 4px 6px; text-decoration: underline; text-underline-offset: 2px; }
button.link.pericolo, .pericolo-btn { color: var(--bad); }
button.icona { width: 32px; height: 32px; padding: 0; font-size: 18px; line-height: 1; }
button.sottile { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.18); color: #fff; }
button.sottile:hover { background: rgba(255,255,255,.16); }
input, select, textarea { border: 1px solid var(--field); border-radius: var(--r-sm); padding: 8px 10px; background: #fff; min-width: 0; }
input:focus, select:focus, textarea:focus, button:focus-visible { outline: none; box-shadow: var(--ring); border-color: var(--petrol); }
.muto { color: var(--muted); }
.piccolo { font-size: 12.5px; }
.nascosto { display: none !important; }
.spazio { flex: 1; }
.errore { color: var(--bad-fg); min-height: 1.2em; margin: 4px 0 0; font-size: 13.5px; }

/* Barra in alto */
.barra { display: flex; align-items: center; gap: 14px; padding: 10px 18px; background: var(--navy); color: #fff; flex-shrink: 0; }
.marchio { background: #fff; border-radius: 8px; padding: 4px 10px; display: inline-flex; }
.marchio img { height: 26px; display: block; }
.titolo-app { font-weight: 600; font-size: 15px; letter-spacing: .01em; }
.titolo-app small { font-weight: 400; opacity: .7; margin-left: 6px; }
.utente { display: flex; align-items: center; gap: 10px; }
.nome-utente { opacity: .9; }
main { flex: 1; min-height: 0; }
.caricamento { padding: 30px; }

/* Griglia: elenco a sinistra, conversazione a destra */
.griglia { display: grid; grid-template-columns: 340px 1fr; height: 100%; min-height: 0; }
.lato { display: flex; flex-direction: column; min-height: 0; background: var(--card); border-right: 1px solid var(--line); }
.lato-testa { display: flex; flex-direction: column; gap: 10px; padding: 14px; border-bottom: 1px solid var(--line-2); }
.largo { width: 100%; padding: 10px; }
.ricerca { width: 100%; }
.schede { display: flex; gap: 4px; background: var(--ground); border-radius: var(--r); padding: 3px; }
.schede button { flex: 1; border: 0; background: transparent; padding: 5px; border-radius: var(--r-sm); color: var(--muted); }
.schede button[aria-pressed="true"] { background: #fff; color: var(--ink); font-weight: 600; box-shadow: var(--shadow-1); }
.lista { flex: 1; overflow-y: auto; padding: 6px; }
.voce { display: flex; align-items: center; gap: 11px; padding: 10px; border-radius: var(--r); text-decoration: none; color: inherit; }
.voce:hover { background: var(--ground); }
.voce.attiva { background: var(--petrol-soft); }
.voce-testo { display: flex; flex-direction: column; min-width: 0; flex: 1; }
.voce-testo b { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.voce-testo span { font-size: 12.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.avatar { width: 38px; height: 38px; border-radius: 50%; background: var(--navy); color: #fff; display: inline-flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 600; flex-shrink: 0; }
.avatar.piccolo { width: 30px; height: 30px; font-size: 11.5px; background: var(--petrol-soft); color: var(--petrol-dark); }
.badge { background: #E0533D; color: #fff; border-radius: 999px; font-size: 12px; font-weight: 600; min-width: 22px; padding: 1px 7px; text-align: center; flex-shrink: 0; }
.vuoto { padding: 18px 12px; text-align: center; }

.chat { min-width: 0; min-height: 0; display: flex; flex-direction: column; }
.chat-box { flex: 1; min-height: 0; display: flex; flex-direction: column; }
.chat-box > .msg { flex: 1; min-height: 0; display: flex; flex-direction: column; }
.chat-box .msg-griglia { flex: 1; min-height: 0; display: flex; flex-direction: column; }
.chat-box .msg-vista { flex: 1; height: auto; min-height: 0; border: 0; border-radius: 0; }
.chat-box .msg-invito { margin: 10px 14px 0; }
.indietro { display: none; padding: 8px 14px; border-bottom: 1px solid var(--line-2); text-decoration: none; color: var(--petrol-dark); font-weight: 600; background: var(--card); }
.chat-vuota { margin: auto; text-align: center; max-width: 420px; padding: 30px; display: flex; flex-direction: column; gap: 8px; align-items: center; }
.chat-vuota-ico { font-size: 34px; }
.errore-pagina { margin: 30px; padding: 14px; background: var(--bad-bg); color: var(--bad-fg); border-radius: var(--r); }

/* Finestre di dialogo */
.dlg { border: 1px solid var(--line); border-radius: var(--r-lg); padding: 22px; width: min(640px, calc(100% - 32px)); max-height: calc(100vh - 40px); color: var(--ink); box-shadow: 0 24px 60px -12px rgba(11, 21, 40, .35); }
.dlg::backdrop { background: rgba(11, 21, 40, .4); }
.dlg h2 { margin-bottom: 14px; }
.dlg .azioni { display: flex; gap: 8px; justify-content: flex-end; align-items: center; margin-top: 16px; }
.modulo { display: flex; flex-direction: column; gap: 6px; }
.modulo > label { font-weight: 600; font-size: 13px; margin-top: 6px; }
fieldset { border: 1px solid var(--line); border-radius: var(--r); padding: 10px 12px 12px; margin: 10px 0 0; display: flex; flex-direction: column; gap: 8px; }
legend { font-weight: 600; font-size: 13px; padding: 0 4px; }
.spunte { display: flex; flex-wrap: wrap; gap: 6px 16px; }
.spunta { display: flex; align-items: center; gap: 6px; }
.esterni { display: flex; flex-direction: column; gap: 6px; }
.riga-esterno { display: grid; grid-template-columns: 1.2fr 1.4fr 1fr auto; gap: 6px; align-items: center; }
.riga-invito { display: flex; gap: 6px; align-items: center; }
.riga-invito .riga-esterno { flex: 1; grid-template-columns: 1.2fr 1.4fr 1fr; }
.membri { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; max-height: 260px; overflow-y: auto; }
.membri li { display: flex; align-items: center; gap: 10px; }
.membri li.spento { opacity: .55; }
.membro-testo { display: flex; flex-direction: column; flex: 1; min-width: 0; }
.membro-testo span { font-size: 12.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.invita { display: flex; flex-direction: column; gap: 4px; margin-top: 4px; }
.toast { position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%); background: var(--navy); color: #fff; padding: 10px 16px; border-radius: var(--r); box-shadow: 0 8px 24px -8px rgba(11, 21, 40, .5); z-index: 2000; }

/* Accesso degli esterni */
body.pagina-accesso main { display: flex; align-items: center; justify-content: center; padding: 24px; }
.accesso { background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 28px; width: min(420px, 100%); display: flex; flex-direction: column; gap: 10px; box-shadow: var(--shadow-1); }
.accesso p { margin: 0; }
.accesso label { font-weight: 600; font-size: 13px; }
.accesso .logo-accesso { height: 40px; align-self: flex-start; }
.accesso .codice { font-family: var(--mono); font-size: 20px; letter-spacing: .3em; text-align: center; }
.passo2 { display: flex; flex-direction: column; gap: 6px; }

/* Schermi stretti (prima versione: il telefono avrà la sua app) */
@media (max-width: 820px) {
  .griglia { grid-template-columns: 1fr; }
  .griglia:has(.chat-box) .lato { display: none; }
  .griglia:not(:has(.chat-box)) .chat { display: none; }
  .titolo-app small, .nome-utente { display: none; }
  .indietro { display: block; }
  .riga-esterno, .riga-invito .riga-esterno { grid-template-columns: 1fr; }
}

/* Riservatezza dello schermo: filigrana personale e contenuto sfocato fuori dal primo piano */
.chat { position: relative; }
.chat::after { content: ''; position: absolute; inset: 0; pointer-events: none; background-image: var(--filigrana, none); background-repeat: repeat; z-index: 5; }
body.oscurato .chat > *, body.oscurato .lista { filter: blur(18px); }
body.oscurato .chat::before { content: 'Contenuto nascosto per riservatezza'; position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; z-index: 6; font-weight: 600; color: var(--navy); }
@media print { .chat, .lista { display: none !important; } }

/* Registro di sicurezza */
.registro { max-height: 60vh; overflow: auto; border: 1px solid var(--line); border-radius: var(--r); }
.registro table { width: 100%; border-collapse: collapse; font-size: 13px; }
.registro td { padding: 6px 8px; border-bottom: 1px solid var(--line-2); vertical-align: top; }
.registro tr.allarme td { background: var(--bad-bg); color: var(--bad-fg); }
.nowrap { white-space: nowrap; }

/* Dispositivi da approvare */
.approvazioni-btn { width: 100%; background: var(--warn-bg); border-color: #E8C98A; color: var(--warn-fg); font-weight: 600; padding: 9px; }
.codice-sicurezza { font-family: var(--mono); font-size: 12.5px; color: var(--ink) !important; margin-top: 2px; }