/* ==========================================================================
DUEL.CSS — дуэль 1 на 1 против бота: экран настройки, поле боя, итоги.
Строится поверх exam.css (тот же тёмный exam-card, .question/.answers).
========================================================================== */

/* ---------------- Режим: бот / реальный игрок ---------------- */
.duel-mode-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.duel-mode-tab {
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.04);
  color: #d3d8ee;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
}

.duel-mode-tab.is-active {
  background: var(--color-primary, #6f87ff);
  border-color: var(--color-primary, #6f87ff);
  color: #fff;
}

[data-theme="light"] .duel-mode-tab {
  background: var(--color-bg-alt);
  border-color: var(--color-border);
  color: var(--color-text);
}

.duel-demo-note {
  margin: 14px 0 0;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(212, 175, 55, 0.3);
  background: rgba(212, 175, 55, 0.08);
  color: #e7dcc0;
  font-size: 13px;
  line-height: 1.6;
}

/* ---------------- Setup ---------------- */
.duel-stats {
  display: flex;
  gap: 10px;
  margin: 20px 0;
  flex-wrap: wrap;
}

.duel-stats__item {
  flex: 1;
  min-width: 84px;
  padding: 12px 10px;
  text-align: center;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.duel-stats__num {
  display: block;
  font-size: 20px;
  font-weight: 800;
  color: #f5f7ff;
}

.duel-stats__label {
  font-size: 11.5px;
  color: #9ca8cb;
}

.duel-stats__item--rating {
  background: rgba(111, 135, 255, 0.12);
  border-color: rgba(111, 135, 255, 0.3);
}

.duel-stats__item--rating .duel-stats__num {
  color: #b7c1ff;
}

.duel-setup__grid {
  grid-template-columns: repeat(4, 1fr);
}

.duel-wager {
  display: flex;
  align-items: flex-end;
  gap: 14px;
  flex-wrap: wrap;
  margin: 4px 0 8px;
}

.duel-wager__input {
  max-width: 160px;
}

.duel-wager__presets {
  display: flex;
  gap: 8px;
  padding-bottom: 2px;
}

.duel-preset-btn {
  padding: 8px 12px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  color: #d3d8ee;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
}

.duel-preset-btn:hover {
  border-color: rgba(111, 135, 255, 0.4);
  color: #f5f7ff;
}

.duel-wager__balance {
  margin-left: auto;
  font-size: 13px;
  color: #9ca8cb;
  padding-bottom: 10px;
}

.duel-wager__balance strong {
  color: #f5f7ff;
}

.duel-setup__error {
  margin: 4px 0 16px;
  padding: 10px 14px;
  border-radius: 12px;
  background: rgba(225, 77, 77, 0.12);
  border: 1px solid rgba(225, 77, 77, 0.3);
  color: #ffb3b3;
  font-size: 13px;
}

/* ---------------- Battle ---------------- */
.duel-vs {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.duel-vs__side {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  flex: 1;
}

.duel-vs__avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
  color: #fff;
  background: linear-gradient(135deg, #5f7bff, #7e95ff);
  background-size: cover;
  background-position: center;
}

.duel-vs__avatar--bot {
  background: linear-gradient(135deg, #4a5170, #2c3149);
  font-size: 22px;
}

.duel-vs__name {
  font-size: 13px;
  font-weight: 700;
  color: #d3d8ee;
  text-align: center;
}

.duel-vs__score {
  font-size: 24px;
  font-weight: 800;
  color: #f5f7ff;
}

.duel-vs__mid {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.duel-vs__vs {
  font-size: 13px;
  font-weight: 800;
  color: #7985ab;
  letter-spacing: 0.08em;
}

.duel-round-result[hidden] {
  display: none;
}

.duel-round-result {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 14px;
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 13.5px;
  font-weight: 700;
}

.duel-round-result__ok {
  color: #8ff0c1;
}

.duel-round-result__bad {
  color: #ffb3b3;
}

.duel-round-result__explain {
  flex-basis: 100%;
  margin: 4px 0 0;
  font-size: 13px;
  font-weight: 400;
  color: #c7d0f5;
}

.duel-running__actions {
  justify-content: flex-end;
}

.exam-breakdown .results-row {
  flex-wrap: wrap;
  gap: 8px;
}

/* ---------------- Light theme ---------------- */
[data-theme="light"] .duel-demo-note {
  color: var(--color-text);
}

[data-theme="light"] .duel-stats__item {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
}

[data-theme="light"] .duel-stats__num {
  color: var(--color-text);
}

[data-theme="light"] .duel-stats__label {
  color: var(--color-text-muted);
}

[data-theme="light"] .duel-stats__item--rating {
  background: var(--color-primary-light);
  border-color: rgba(61, 90, 254, 0.25);
}

[data-theme="light"] .duel-stats__item--rating .duel-stats__num {
  color: var(--color-primary);
}

[data-theme="light"] .duel-preset-btn {
  background: #fff;
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

[data-theme="light"] .duel-wager__balance {
  color: var(--color-text-muted);
}

[data-theme="light"] .duel-wager__balance strong {
  color: var(--color-text);
}

[data-theme="light"] .duel-setup__error {
  color: #c0262a;
}

[data-theme="light"] .duel-vs__name {
  color: var(--color-text);
}

[data-theme="light"] .duel-vs__score {
  color: var(--color-text);
}

[data-theme="light"] .duel-vs__vs {
  color: var(--color-text-muted);
}

[data-theme="light"] .duel-round-result {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
}

[data-theme="light"] .duel-round-result__explain {
  color: var(--color-text-muted);
}

@media (max-width: 620px) {
  .duel-setup__grid {
    grid-template-columns: 1fr;
  }

  .duel-wager__balance {
    margin-left: 0;
  }
}