/* Pagina /prova/: la chat demo a schermo intero, pensata per il telefono. Identità «Segnale». */

.avatar { display: grid; place-items: center; flex: none; width: 40px; height: 40px; border-radius: 50%; background: var(--notte); box-shadow: inset 0 0 0 1px rgb(255 255 255 / 0.08); }
.avatar .led { width: 10px; height: 10px; }
.riga-ia {
  display: flex; align-items: center; gap: 8px; margin: 0;
  padding: 10px 16px;
  background: var(--notte); color: #eef0ea;
  font-family: var(--mono); font-size: 0.75rem; font-weight: 500; letter-spacing: 0.02em; line-height: 1.4;
}
.riga-ia svg { width: 15px; height: 15px; flex: none; color: var(--luce); }
.suggerimento {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  width: 100%; padding: 12px 14px;
  border: 1px solid var(--linea); border-radius: 16px;
  background: var(--carta); color: var(--inchiostro);
  font: 500 0.9375rem/1.35 var(--testo); text-align: left; cursor: pointer;
  transition: border-color 0.2s, transform 0.2s var(--curva);
}
.suggerimento::after { content: "→"; flex: none; font-family: var(--mono); opacity: 0.5; transition: transform 0.2s var(--curva), opacity 0.2s; }
.suggerimento:hover { border-color: var(--inchiostro); }
.suggerimento:hover::after { opacity: 1; transform: translateX(2px); }
.suggerimento:active { transform: scale(0.985); }

html:has(.pagina-chat) { scroll-behavior: auto; }
.pagina-chat { overflow: hidden; overscroll-behavior: none; }

.app {
  position: fixed;
  left: 0; right: 0;
  top: var(--vv-top, 0px);
  height: var(--altezza-app, 100dvh);
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  width: 100%;
  max-width: 780px;
  margin: 0 auto;
  background: var(--superficie);
}
@media (min-width: 820px) {
  .pagina-chat { background: var(--carta); }
  .app { box-shadow: 0 0 0 1px var(--linea), var(--ombra); }
}

/* Testata */
.chat-testa {
  display: flex; align-items: center; gap: 10px;
  padding: max(10px, env(safe-area-inset-top)) max(12px, env(safe-area-inset-right)) 10px max(8px, env(safe-area-inset-left));
  border-bottom: 1px solid var(--linea);
  background: var(--superficie);
}
.chat-indietro {
  display: grid; place-items: center; flex: none;
  width: 40px; height: 40px; border-radius: 50%;
  color: var(--inchiostro);
}
.chat-indietro:hover { background: var(--superficie-2); }
.chat-indietro svg { width: 22px; height: 22px; }
.chat-testa .avatar { width: 38px; height: 38px; font-size: 1.1rem; }
.chat-chi { flex: 1; min-width: 0; line-height: 1.25; }
.chat-chi strong { display: block; font-size: 1rem; }
.chat-chi span { display: block; font-size: 0.8125rem; color: var(--tenue); transition: color 0.2s; }
.chat-chi span.attiva { color: var(--inchiostro); }
.chat-ricomincia {
  display: inline-flex; align-items: center; gap: 6px; flex: none;
  min-height: 40px; padding: 0 14px;
  border: 0; border-radius: 999px;
  background: var(--superficie-2); color: var(--inchiostro);
  font: 600 0.875rem var(--testo); cursor: pointer;
}
.chat-ricomincia:hover { background: var(--linea); }
.chat-ricomincia svg { width: 16px; height: 16px; }

/* Riga fissa: sempre visibile, niente la copre */
.chat-riga-ia { position: relative; z-index: 2; justify-content: center; text-align: center; padding-inline: 16px; }

/* Area della conversazione */
.chat-scorri {
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  padding: 20px max(16px, env(safe-area-inset-right)) 12px max(16px, env(safe-area-inset-left));
  scroll-padding-bottom: 12px;
}
.chat-benvenuto { max-width: 34rem; margin: 0 auto 16px; text-align: center; }
.chat-benvenuto h1 { font-size: clamp(1.75rem, 1.4rem + 2vw, 2.6rem); margin-bottom: 8px; }
.chat-benvenuto p { color: var(--tenue); font-size: 0.9375rem; line-height: 1.5; }
.chat-benvenuto .chat-nota { margin-top: 8px; font-size: 0.8125rem; }

.messaggi { display: flex; flex-direction: column; gap: 6px; margin: 0; padding: 0; list-style: none; }
.voce { display: flex; flex-direction: column; max-width: min(84%, 34rem); }
.voce.io { align-self: flex-end; align-items: flex-end; }
.voce.sara { align-self: flex-start; }
.voce.io + .voce.sara, .voce.sara + .voce.io, .voce.sistema, .voce.sistema + .voce { margin-top: 10px; }

.bolla {
  padding: 10px 14px;
  border-radius: 20px;
  font-size: 1rem; line-height: 1.5;
  white-space: pre-wrap; overflow-wrap: anywhere;
}
.io .bolla { background: var(--accento); color: var(--su-accento); border-bottom-right-radius: 6px; }
.sara .bolla { background: var(--carta); color: var(--inchiostro); box-shadow: inset 0 0 0 1px var(--linea); border-bottom-left-radius: 6px; }
.voce.sara + .voce.sara .bolla { border-top-left-radius: 6px; }
.bolla a { color: inherit; font-weight: 600; }
.sara .bolla a { color: inherit; }

/* Un link da solo in una bolla (es. il link per prenotare) diventa un pulsante */
.bolla-link {
  display: flex; align-items: center; gap: 12px;
  min-width: min(260px, 100%);
  padding: 12px 14px;
  border-radius: 18px; border-bottom-left-radius: 6px;
  background: var(--accento-tenue); color: var(--inchiostro);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accento) 30%, transparent);
  text-decoration: none;
}
.bolla-link:hover { text-decoration: none; box-shadow: inset 0 0 0 1.5px var(--accento); }
.bolla-link .icona {
  display: grid; place-items: center; flex: none; width: 36px; height: 36px; border-radius: 50%;
  background: var(--accento); color: var(--su-accento);
}
.bolla-link .icona svg { width: 18px; height: 18px; }
.bolla-link strong { display: block; font-size: 0.9375rem; }
.bolla-link span.dominio { display: block; font-size: 0.8125rem; color: var(--tenue); overflow-wrap: anywhere; }

.voce.sistema { align-self: center; max-width: min(92%, 30rem); align-items: center; text-align: center; }
.sistema .avviso-chat {
  padding: 10px 14px; border-radius: 14px;
  background: var(--avviso); color: var(--su-avviso);
  font-size: 0.9375rem; line-height: 1.45;
  white-space: pre-wrap;
}
.riprova {
  display: inline-flex; align-items: center; gap: 6px;
  margin-top: 10px; min-height: 40px; padding: 0 16px;
  border: 0; border-radius: 999px;
  background: var(--inchiostro); color: var(--carta);
  font: 600 0.9375rem var(--testo); cursor: pointer;
}
.riprova svg { width: 16px; height: 16px; }

.voce.entra { animation: entra 0.36s var(--curva) both; }
@keyframes entra { from { opacity: 0; transform: translateY(8px) scale(0.98); } }

/* Sara sta scrivendo… */
.scrive { display: flex; align-items: center; gap: 10px; margin-top: 12px; color: var(--tenue); font-size: 0.875rem; }
.scrive[hidden] { display: none; }
.puntini {
  display: inline-flex; gap: 4px; padding: 12px 14px;
  border-radius: 20px; border-bottom-left-radius: 6px;
  background: var(--carta); box-shadow: inset 0 0 0 1px var(--linea);
}
.puntini i { width: 7px; height: 7px; border-radius: 50%; background: var(--tenue); animation: puntino 1.2s infinite ease-in-out; }
.puntini i:nth-child(2) { animation-delay: 0.15s; }
.puntini i:nth-child(3) { animation-delay: 0.3s; }
@keyframes puntino { 0%, 60%, 100% { opacity: 0.3; transform: none; } 30% { opacity: 1; transform: translateY(-3px); } }
#scrive-nota:not(:empty)::before { content: " "; }
@media (prefers-reduced-motion: reduce) { .puntini i { animation: none; opacity: 0.6; } }

/* Piede: suggerimenti, scrittura, informativa */
.chat-piede {
  padding: 10px max(12px, env(safe-area-inset-right)) max(10px, env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left));
  border-top: 1px solid var(--linea);
  background: var(--superficie);
}
.chat-suggerimenti { display: grid; gap: 8px; margin: 0 0 10px; padding: 0; list-style: none; }
.chat-suggerimenti[hidden] { display: none; }
.chat-suggerimenti { gap: 6px; }
.chat-suggerimenti .suggerimento { padding: 9px 12px; border-radius: 14px; font-size: 0.875rem; }

.compositore {
  display: flex; align-items: flex-end; gap: 8px;
  padding: 6px 6px 6px 16px;
  border-radius: 26px;
  background: var(--carta);
  box-shadow: inset 0 0 0 1.5px var(--linea);
  transition: box-shadow 0.2s;
}
.compositore:focus-within { box-shadow: inset 0 0 0 1.5px var(--accento), 0 0 0 4px var(--accento-tenue); }
.compositore[hidden] { display: none; }
.compositore textarea {
  flex: 1; min-width: 0;
  max-height: 140px; padding: 9px 0;
  border: 0; outline: 0; resize: none;
  background: transparent; color: var(--inchiostro);
  font: 400 1rem/1.4 var(--testo); /* 16px: su iPhone non fa lo zoom */
}
.compositore textarea::placeholder { color: var(--tenue); }
.compositore button {
  display: grid; place-items: center; flex: none;
  width: 40px; height: 40px; border: 0; border-radius: 50%;
  background: var(--accento); color: var(--su-accento);
  cursor: pointer; transition: transform 0.2s var(--curva), opacity 0.2s;
}
.compositore button svg { width: 20px; height: 20px; }
.compositore button:active { transform: scale(0.92); }
.compositore button[disabled] { opacity: 0.35; cursor: default; transform: none; }

.chat-bloccata { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px 16px; padding: 4px 4px 2px; }
.chat-bloccata[hidden] { display: none; }
.chat-bloccata p { font-weight: 600; }
.chat-bloccata .pulsante { min-height: 46px; }

.chat-info { margin-top: 8px; font-size: 0.75rem; line-height: 1.4; color: var(--tenue); text-align: center; }
.contatore:not(:empty) { margin-right: 6px; font-weight: 600; color: var(--inchiostro); }
.contatore.pieno { color: #b3432f; }
@media (prefers-color-scheme: dark) { .contatore.pieno { color: #f09a86; } }

.chat-noscript { position: fixed; inset: auto 16px 16px; z-index: 5; padding: 14px; border-radius: 14px; background: var(--avviso); color: var(--su-avviso); }

/* Schermi bassi (es. iPhone SE): meno testo sopra i suggerimenti */
@media (max-height: 700px) {
  .chat-benvenuto p:not(.chat-nota) { display: none; }
  .chat-benvenuto h1 { font-size: 1.5rem; }
  .chat-scorri { padding-top: 14px; }
}