/* Вид «Собеседник» (вариант Б, выбор Дениса 01.11): цвета пульта ДСЛ, один цвет-сигнал. */
:root {
  --ground: #f3f4f4; --ink: #1d282c; --ink-2: #5b676c; --hair: rgba(29, 40, 44, .13);
  --panel: #e8ebeb; --card: #fff; --signal: #d9480f; --bad: #b73030;
  --level: 0;
  color-scheme: light;
}
:root[data-theme="dark"] {
  --ground: #0c0f10; --ink: #e8edee; --ink-2: #9ba7ab; --hair: rgba(232, 237, 238, .13);
  --panel: #151a1c; --card: #171d20; --bad: #ff6b6b;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; background: var(--ground); color: var(--ink); }
body {
  font: 300 16px/1.4 -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased; display: flex; flex-direction: column; min-height: 100vh;
  padding: 0 16px calc(12px + env(safe-area-inset-bottom)); max-width: 40rem; margin: 0 auto;
}
[hidden] { display: none !important; }
button, input { font: inherit; color: inherit; }
button { cursor: pointer; }
button:focus-visible, input:focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.hint { color: var(--ink-2); }

/* Шапка: имя и разделы */
.bar { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 12px 0 10px; border-bottom: 1px solid var(--hair); }
.bar b { font-weight: 500; font-size: 17px; }
nav { display: flex; gap: 6px; }
nav button { border: 1px solid var(--hair); background: transparent; color: var(--ink-2); border-radius: 999px; padding: 5px 11px; font-size: 13px; min-height: 32px; }
nav button[aria-pressed="true"] { background: var(--ink); color: var(--ground); border-color: var(--ink); }
#word-count { font-variant-numeric: tabular-nums; }

main { flex: 1; display: flex; flex-direction: column; }

/* Сцена: шар, состояние, последняя пара реплик */
.stage { flex: 1; display: flex; flex-direction: column; align-items: center; text-align: center; padding: 28px 4px 12px; }
.orb {
  position: relative; width: 132px; height: 132px; border-radius: 50%; border: 0; padding: 0; margin: 12px 0 30px;
  background: radial-gradient(circle at 35% 30%, #fff 0, color-mix(in srgb, var(--signal) 35%, #fff) 30%, var(--signal) 75%);
  box-shadow: 0 0 0 calc(10px + var(--level) * 22px) color-mix(in srgb, var(--signal) 13%, transparent),
              0 0 0 calc(24px + var(--level) * 40px) color-mix(in srgb, var(--signal) 6%, transparent);
  transition: box-shadow 90ms linear, transform 200ms ease, filter 200ms ease;
  -webkit-tap-highlight-color: transparent;
}
.orb:active { transform: scale(.96); }
.idle .orb { filter: saturate(.8); }
.error .orb { filter: grayscale(.8); }
.thinking .orb, .sending .orb { animation: think 1.4s ease-in-out infinite; }
.speaking .orb { animation: speak .9s ease-in-out infinite; }
@keyframes think { 50% { transform: scale(.92); filter: brightness(1.08); } }
@keyframes speak {
  50% { box-shadow: 0 0 0 26px color-mix(in srgb, var(--signal) 15%, transparent), 0 0 0 52px color-mix(in srgb, var(--signal) 6%, transparent); }
}
.state { font: 400 11px/1.2 ui-monospace, "SF Mono", Menlo, monospace; letter-spacing: .1em; text-transform: uppercase; color: var(--signal); margin: 0 0 14px; min-height: 14px; }
.idle .state { color: var(--ink-2); }
.error .state { color: var(--bad); text-transform: none; letter-spacing: 0; font: 400 14px/1.4 inherit; }
.said { color: var(--ink-2); font-size: 14px; margin: 0 0 8px; max-width: 34rem; }
.reply { font-size: 23px; line-height: 1.3; letter-spacing: -.02em; margin: 0; max-width: 34rem; overflow-wrap: anywhere; }
.reply.empty { font-size: 17px; color: var(--ink-2); }
.link { border: 0; background: none; color: var(--ink-2); font-size: 13px; text-decoration: underline; text-underline-offset: 3px; margin-top: 6px; min-height: 32px; }
.cards { width: 100%; display: flex; flex-direction: column; gap: 6px; margin-top: 16px; text-align: left; }
.fix { padding: 8px 11px; border-left: 2px solid var(--signal); background: var(--card); border-radius: 0 12px 12px 0; font-size: 15px; }
.fix s { color: var(--ink-2); }
.fix b { font-weight: 500; }
.fix small { display: block; color: var(--ink-2); font-size: 12px; margin-top: 2px; }
.chips { width: 100%; display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; justify-content: flex-start; }
.chip { font-size: 13px; padding: 4px 10px; border-radius: 999px; border: 1px solid var(--hair); background: var(--card); }

/* История и слова */
.sheet { padding: 18px 0; }
.sheet h2 { font-weight: 300; font-size: 26px; letter-spacing: -.03em; margin: 0 0 12px; }
.message { background: var(--card); margin: 8px 0; padding: 10px 12px; border-radius: 14px; overflow-wrap: anywhere; }
.message h3 { font: 400 10px/1.2 ui-monospace, "SF Mono", Menlo, monospace; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); margin: 0 0 4px; }
.message p { margin: 2px 0; white-space: pre-wrap; }
.message .correction { font-size: 14px; border-left: 2px solid var(--signal); padding-left: 8px; margin-top: 6px; }
.message .correction small { display: block; color: var(--ink-2); }
#words { list-style: none; padding: 0; margin: 0; }
#words li { background: var(--card); border-radius: 12px; padding: 9px 12px; margin: 6px 0; overflow-wrap: anywhere; }

/* Низ: текст вместо голоса */
.dock { display: flex; align-items: center; gap: 10px; padding-top: 10px; border-top: 1px solid var(--hair); }
.dock .hint { flex: 1; margin: 0; font-size: 13px; }
.round { width: 40px; height: 40px; flex: none; border-radius: 50%; border: 1px solid var(--hair); background: var(--card); color: var(--ink-2); font-size: 14px; }
.round[aria-expanded="true"] { background: var(--ink); color: var(--ground); }
#text-form { flex: 1; display: flex; gap: 8px; }
#text { flex: 1; min-width: 0; min-height: 40px; border-radius: 20px; border: 1px solid var(--hair); background: var(--card); padding: 0 14px; }
#send { width: 40px; height: 40px; border-radius: 50%; border: 0; background: var(--signal); color: #fff; font-size: 18px; flex: none; }
#send:disabled { opacity: .5; cursor: wait; }

@media (prefers-reduced-motion: reduce) {
  .orb { transition: none; }
  .thinking .orb, .sending .orb, .speaking .orb { animation: none; }
}