/* KaraOS PWA — тёмная тема по умолчанию, светлая как исключение. */

:root {
  color-scheme: dark light;

  --bg: #0f1115;
  --bg-raised: #171a21;
  --bg-input: #1e2230;
  --line: #262b38;
  --text: #e8eaf0;
  --text-muted: #9aa1b4;
  --accent: #6c8cff;
  --accent-text: #0b0e14;
  --bubble-me: #26304d;
  --bubble-them: #1b1f29;
  --error: #ff8a80;
  --ok: #7ddca4;

  --radius: 14px;
  --gap: 16px;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f5f6f9;
    --bg-raised: #ffffff;
    --bg-input: #ffffff;
    --line: #dfe2ea;
    --text: #15181f;
    --text-muted: #5b6273;
    --accent: #3358e0;
    --accent-text: #ffffff;
    --bubble-me: #dfe6ff;
    --bubble-them: #ffffff;
    --error: #b3261e;
    --ok: #1f7a4d;
  }
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-text-size-adjust: 100%;
  overscroll-behavior-y: none;
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.screen[hidden] { display: none; }

/* ─── Вход ─────────────────────────────────────────────── */

#screen-login {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100dvh;
  padding: max(var(--gap), env(safe-area-inset-top)) var(--gap)
           max(var(--gap), env(safe-area-inset-bottom));
}

.login-box {
  width: 100%;
  max-width: 420px;
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 22px;
  text-align: center;
}

.logo { border-radius: 18px; margin-bottom: 8px; }

h1 { font-size: 1.5rem; margin: 0 0 12px; }

.muted { color: var(--text-muted); font-size: 0.95rem; margin: 0 0 20px; }

form { text-align: left; }

label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

input[type="text"], textarea {
  width: 100%;
  background: var(--bg-input);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 14px;
  font: inherit;
  font-size: 16px; /* меньше 16px — iOS зумит страницу при фокусе */
}

input[type="text"]:focus-visible,
textarea:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.hint { color: var(--text-muted); font-size: 0.8rem; margin: 8px 0 0; }

.error { color: var(--error); font-size: 0.85rem; margin: 10px 0 0; }
.error[hidden] { display: none; }

button {
  font: inherit;
  cursor: pointer;
  border-radius: 10px;
  border: 1px solid transparent;
  padding: 12px 18px;
  min-height: 44px;
}

button.primary {
  width: 100%;
  margin-top: 18px;
  background: var(--accent);
  color: var(--accent-text);
  font-weight: 600;
}

button.ghost {
  background: transparent;
  color: var(--text-muted);
  border-color: var(--line);
  padding: 8px 12px;
  min-height: 36px;
  font-size: 0.85rem;
}

button[disabled] { opacity: 0.5; cursor: default; }

.stub-badge {
  margin: 22px 0 0;
  padding: 10px 12px;
  border: 1px dashed var(--line);
  border-radius: 10px;
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* ─── Диалог ───────────────────────────────────────────── */

#screen-chat {
  display: flex;
  flex-direction: column;
  height: 100dvh;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: max(10px, env(safe-area-inset-top)) var(--gap) 10px;
  border-bottom: 1px solid var(--line);
  background: var(--bg-raised);
}

.topbar .title { flex: 1; display: flex; flex-direction: column; line-height: 1.2; }

.conn { font-size: 0.75rem; color: var(--text-muted); }
.conn[data-state="online"] { color: var(--ok); }
.conn[data-state="offline"] { color: var(--error); }

.notice {
  margin: 0;
  padding: 10px var(--gap);
  background: var(--bg-input);
  border-bottom: 1px solid var(--line);
  color: var(--text-muted);
  font-size: 0.85rem;
}
.notice[hidden] { display: none; }

.log {
  flex: 1;
  overflow-y: auto;
  padding: var(--gap);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.msg {
  max-width: min(78%, 560px);
  padding: 10px 14px;
  border-radius: var(--radius);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.msg.from-me {
  align-self: flex-end;
  background: var(--bubble-me);
  border-bottom-right-radius: 4px;
}

.msg.from-bot {
  align-self: flex-start;
  background: var(--bubble-them);
  border: 1px solid var(--line);
  border-bottom-left-radius: 4px;
}

.msg.system {
  align-self: center;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.8rem;
  text-align: center;
  max-width: 100%;
}

.msg .meta {
  display: block;
  margin-top: 4px;
  font-size: 0.7rem;
  color: var(--text-muted);
}

.msg.pending { opacity: 0.6; }
.msg.failed { border: 1px solid var(--error); }

.composer {
  display: flex;
  gap: 10px;
  align-items: flex-end;
  padding: 10px var(--gap) max(10px, env(safe-area-inset-bottom));
  border-top: 1px solid var(--line);
  background: var(--bg-raised);
}

.composer textarea {
  flex: 1;
  resize: none;
  max-height: 140px;
}

.composer button.primary { width: auto; margin: 0; }

@media (max-width: 420px) {
  .composer button.primary { padding: 12px 14px; }
}