:root {
  --bg: var(--tg-theme-bg-color, #ffffff);
  --text: var(--tg-theme-text-color, #111111);
  --muted: var(--tg-theme-hint-color, #707579);
  --btn: var(--tg-theme-button-color, #2f6fed);
  --btn-text: var(--tg-theme-button-text-color, #ffffff);
  --card: var(--tg-theme-secondary-bg-color, #f2f2f5);
  --line: rgba(128, 128, 128, .25);
  --ok: #2e7d32;
  --bad: #c62828;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-text-size-adjust: 100%;
}

main {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 12px 14px calc(16px + env(safe-area-inset-bottom));
  gap: 12px;
}

.top { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.wave { font-weight: 600; font-size: 15px; }
.counter { color: var(--muted); font-size: 14px; }

.screen { padding: 18px 4px; color: var(--text); }
.screen h2 { margin: 0 0 8px; font-size: 18px; }
.screen p { margin: 0 0 8px; color: var(--muted); }

.card {
  background: var(--card);
  border-radius: 14px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.situation { color: var(--muted); font-size: 13px; text-transform: lowercase; }
.context { font-size: 17px; }
.context .ru { display: block; color: var(--muted); font-size: 15px; margin-top: 2px; }
.prompt { font-weight: 600; font-size: 17px; }

.answers { display: flex; flex-direction: column; gap: 8px; }

button {
  font: inherit;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--text);
  padding: 14px 16px;
  min-height: 48px;
  text-align: center;
  cursor: pointer;
}

button:disabled { opacity: .55; }

button.primary {
  background: var(--btn);
  color: var(--btn-text);
  border-color: transparent;
  font-weight: 600;
  width: 100%;
}

button.ghost { background: transparent; color: var(--muted); width: 100%; }

.answers button.chosen { border-color: var(--btn); }

input[type="text"] {
  font: inherit;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--text);
  width: 100%;
}

.hint { color: var(--muted); font-size: 14px; border-left: 3px solid var(--line); padding-left: 10px; }
.verdict { font-weight: 600; }
.verdict.ok { color: var(--ok); }
.verdict.bad { color: var(--bad); }
.verdict small { display: block; font-weight: 400; color: var(--muted); margin-top: 4px; }

.actions { margin-top: auto; display: flex; flex-direction: column; gap: 8px; }

.hidden { display: none; }