.rd-wrap {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* ─── CARD ───────────────────────────────────────── */

.rd-card {
  background: var(--bg2);
  border: 0.5px solid var(--border);
  border-radius: 10px;
  padding: 2rem 1.75rem;
  min-height: 180px;
  display: flex;
  align-items: stretch;
}

.rd-card > div { width: 100%; }

/* ─── IDLE ───────────────────────────────────────── */

.rd-state-idle {
  display: flex;
  align-items: center;
  justify-content: center;
}

.rd-state-idle.hidden,
.rd-state-loading.hidden,
.rd-state-riddle.hidden { display: none; }

.rd-start-btn {
  background: none;
  border: 0.5px solid var(--border);
  border-radius: 7px;
  padding: 0.65rem 1.8rem;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--muted);
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}

.rd-start-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ─── LOADING ────────────────────────────────────── */

.rd-state-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.1em;
}

.rd-spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 1.5px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: rd-spin 0.7s linear infinite;
  flex-shrink: 0;
}

@keyframes rd-spin { to { transform: rotate(360deg); } }

.rd-loading-text { letter-spacing: 0.12em; }

/* ─── RIDDLE ─────────────────────────────────────── */

.rd-state-riddle {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.rd-riddle-label {
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.rd-riddle-text {
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  font-style: italic;
}

/* ─── ANSWER ─────────────────────────────────────── */

.rd-answer-section {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.rd-answer-row {
  display: flex;
  gap: 8px;
}

.rd-answer-input {
  flex: 1;
  background: var(--bg);
  border: 0.5px solid var(--border);
  border-radius: 6px;
  padding: 0.5rem 0.85rem;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text);
  outline: none;
  transition: border-color 0.15s;
  min-width: 0;
}

.rd-answer-input:focus { border-color: var(--border-hover); }
.rd-answer-input::placeholder { color: var(--muted2); }
.rd-answer-input:disabled { opacity: 0.5; }

.rd-check-btn {
  background: none;
  border: 0.5px solid var(--accent);
  border-radius: 6px;
  padding: 0.45rem 1.2rem;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s, color 0.15s;
  flex-shrink: 0;
}

.rd-check-btn:hover {
  background: var(--accent);
  color: var(--bg);
}

.rd-check-btn:disabled {
  opacity: 0.4;
  pointer-events: none;
}

.rd-hint-btn {
  background: none;
  border: none;
  padding: 0;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--muted2);
  cursor: pointer;
  text-align: left;
  transition: color 0.15s;
}

.rd-hint-btn:hover { color: var(--muted); }
.rd-hint-btn:disabled { opacity: 0.4; pointer-events: none; }

.rd-hint {
  font-size: 12px;
  color: var(--muted);
  padding: 0.5rem 0.75rem;
  background: var(--bg3);
  border-radius: 5px;
  line-height: 1.6;
  border-left: 2px solid var(--muted2);
}

.rd-hint.hidden { display: none; }

/* ─── VERDICT ────────────────────────────────────── */

.rd-verdict {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 0.9rem 1rem;
  border-radius: 7px;
  border: 0.5px solid var(--border);
}

.rd-verdict.hidden { display: none; }
.rd-verdict.correct { border-color: var(--up); background: rgba(74,222,128,0.04); }
.rd-verdict.wrong   { border-color: var(--wip); background: rgba(245,158,11,0.04); }

.rd-verdict-icon {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.rd-verdict.correct .rd-verdict-icon { color: var(--up); }
.rd-verdict.wrong   .rd-verdict-icon { color: var(--wip); }

.rd-verdict-comment {
  font-size: 13px;
  color: var(--text);
  line-height: 1.5;
}

.rd-verdict-answer {
  font-size: 11px;
  color: var(--muted);
  margin-top: 0.2rem;
}

.rd-verdict-answer.hidden { display: none; }

/* ─── NEXT ───────────────────────────────────────── */

.rd-next-row { display: flex; }
.rd-next-row.hidden { display: none; }

.rd-next-btn {
  background: none;
  border: none;
  padding: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
  cursor: pointer;
  transition: color 0.15s;
}

.rd-next-btn:hover { color: var(--accent); }