:root {
  --bg: #ffffff;
  --fg: #242424;
  --panel: #f5f5f5;
  --muted: #616161;
  --border: #d1d1d1;
  --accent: #0f6cbd;
  --accent-fg: #ffffff;
  --user-bg: #ebf3fc;
  --danger: #c50f1f;
  --ok: #0e700e;
  --warn: #8a5300;
  --radius: 8px;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #1f1f1f;
    --fg: #f0f0f0;
    --panel: #2b2b2b;
    --muted: #adadad;
    --border: #424242;
    --accent: #479ef5;
    --accent-fg: #0a0a0a;
    --user-bg: #1a2e45;
    --danger: #ff8a8a;
    --ok: #6ccb5f;
    --warn: #f5b041;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--fg);
  font: 14px/1.45 "Segoe UI", system-ui, sans-serif;
}

#app { display: flex; flex-direction: column; height: 100%; }

.boot { margin: auto; padding: 24px; color: var(--muted); text-align: center; }
.boot.error { color: var(--danger); }

header {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  padding: 8px 12px; border-bottom: 1px solid var(--border);
}
header .title { display: flex; align-items: center; gap: 8px; font-weight: 600; white-space: nowrap; overflow: hidden; }
header .logo { width: 24px; height: 24px; flex: none; object-fit: contain; }
header .actions { display: flex; align-items: center; gap: 4px; min-width: 0; }
header select.model { max-width: 140px; }

main { flex: 1; overflow: hidden; display: flex; flex-direction: column; }
.messages { flex: 1; overflow-y: auto; padding: 12px; display: flex; flex-direction: column; gap: 10px; }

.msg { padding: 8px 12px; border-radius: var(--radius); max-width: 100%; overflow-wrap: anywhere; }
.msg.user { align-self: flex-end; background: var(--user-bg); white-space: pre-wrap; max-width: 90%; }
.msg.assistant { background: var(--panel); }
.msg.assistant :first-child { margin-top: 0; }
.msg.assistant :last-child { margin-bottom: 0; }
.msg h1, .msg h2, .msg h3 { font-size: 1.05em; margin: 0.6em 0 0.3em; }
.msg ul, .msg ol { padding-left: 1.3em; margin: 0.3em 0; }
.msg pre { background: var(--bg); padding: 8px; border-radius: 6px; overflow-x: auto; }
.msg code { font-family: Consolas, monospace; font-size: 0.92em; }
.msg table { border-collapse: collapse; font-size: 0.92em; display: block; overflow-x: auto; }
.msg th, .msg td { border: 1px solid var(--border); padding: 3px 6px; text-align: left; }
.typing { color: var(--muted); animation: pulse 1.2s infinite; }
@keyframes pulse { 50% { opacity: 0.3; } }

.tool {
  border: 1px solid var(--border); border-left: 3px solid var(--muted);
  border-radius: var(--radius); padding: 6px 10px; font-size: 12.5px; color: var(--muted);
}
.tool.write { border-left-color: var(--warn); }
.tool.ok { border-left-color: var(--ok); }
.tool.failed, .tool.rejected { border-left-color: var(--danger); }
.tool-head { display: flex; gap: 6px; align-items: center; }
.tool-head .status { margin-left: auto; font-style: italic; }
.tool details summary { cursor: pointer; font-size: 11.5px; }
.tool details code { display: block; white-space: pre-wrap; overflow-wrap: anywhere; margin-top: 4px; }
.tool-error { color: var(--danger); margin-top: 4px; }
.confirm { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; margin-top: 8px; color: var(--fg); }
.confirm span { flex: 1 1 100%; }
/* Ricerca sul web: le parole o l'indirizzo che usciranno su internet, ben visibili. */
.tool.web { border-left-color: var(--accent); }
.tool.web code.detail {
  display: block; margin-top: 4px;
  flex: 1 1 100%; font-family: Consolas, monospace; background: var(--bg); padding: 4px 6px; border-radius: 4px;
  overflow-wrap: anywhere;
}

.notice { font-size: 12.5px; color: var(--muted); text-align: center; }
.notice.error { color: var(--danger); }

.suggestions { display: flex; flex-direction: column; gap: 6px; padding: 0 12px 12px; }
.chip {
  text-align: left; background: var(--panel); color: var(--fg);
  border: 1px solid var(--border); border-radius: var(--radius); padding: 8px 10px; cursor: pointer;
}
.chip:hover { border-color: var(--accent); }

footer { border-top: 1px solid var(--border); padding: 8px 12px 10px; }
footer textarea {
  width: 100%; resize: vertical; min-height: 60px; padding: 8px;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg); color: var(--fg); font: inherit;
}
footer textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.footer-row { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-top: 6px; }
.footer-row small { color: var(--muted); font-size: 11px; }

button { font: inherit; cursor: pointer; border-radius: 6px; padding: 5px 12px; }
button.primary { background: var(--accent); color: var(--accent-fg); border: 1px solid var(--accent); }
button.secondary { background: transparent; color: var(--fg); border: 1px solid var(--border); }
button.icon { background: transparent; color: var(--fg); border: none; padding: 4px 8px; font-size: 16px; }
button.icon:hover { background: var(--panel); }
select, input {
  font: inherit; color: var(--fg); background: var(--bg);
  border: 1px solid var(--border); border-radius: 6px; padding: 4px 6px;
}
[hidden] { display: none !important; }

.overlay { position: fixed; inset: 0; background: rgb(0 0 0 / 0.35); display: grid; place-items: center; padding: 12px; }
.settings {
  width: 100%; max-width: 360px; background: var(--bg); border-radius: var(--radius);
  padding: 16px; display: flex; flex-direction: column; gap: 12px;
}
.settings h2 { margin: 0; font-size: 16px; }
.settings label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; }
.settings label.check { flex-direction: row; align-items: center; gap: 8px; }
.settings .buttons { display: flex; justify-content: flex-end; gap: 8px; }