/* ── Game Over / Pause ── */
.game-over {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100vw; height: 100vh;
  align-items: center;
  justify-content: center;
  background: var(--color-overlay);
  z-index: 300;
}

.game-over.visible {
  display: flex;
}

.game-over-modal {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 24px 32px;
  background: var(--color-bg-modal);
  border-top: 2px solid var(--color-accent);
  border-bottom: 2px solid var(--color-accent);
  font-family: var(--font-main);
  color: var(--color-text);
  text-align: center;
}

.modal-title {
  font-size: 32px;
  letter-spacing: 4px;
  color: var(--color-accent);
}

.game-over-score-line {
  font-size: 16px;
  color: var(--color-text-muted);
  letter-spacing: 1px;
}

/* ── Botões de ação (MENU + RETRY lado a lado) ── */
.modal-action-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
}

/* ── Pause ── */
.game-over.paused .game-over-score-line,
.game-over.paused .modal-action-btns {
  display: none;
}

.pause-hint {
  display: none;
  font-size: 13px;
  color: var(--color-accent);
  letter-spacing: 1px;
  font-family: var(--font-main);
}

.game-over.paused .pause-hint {
  display: block;
}

.game-over.paused .modal-title {
  letter-spacing: 6px;
}

/* ── How to Play ── */
#screen-howto {
  z-index: 500;
  background: rgba(0,0,0,0.85);
}

.howto-modal {
  max-width: 480px;
  gap: 16px;
}

.howto-body {
  display: flex;
  flex-direction: column;
  gap: 14px;
  width: 100%;
}

.howto-section {
  font-size: 14px;
  color: var(--color-text-muted);
  letter-spacing: 1px;
  line-height: 1.6;
}

.howto-section strong {
  color: var(--color-accent);
}

.howto-controls {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 12px 0;
  border-top: 1px solid var(--color-border-subtle);
  border-bottom: 1px solid var(--color-border-subtle);
}

.howto-key-row {
  display: flex;
  align-items: center;
  gap: 16px;
}

.howto-key-row kbd {
  font-family: var(--font-main);
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
  padding: 3px 10px;
  min-width: 80px;
  text-align: center;
  background: transparent;
}

.howto-key-row span {
  font-size: 13px;
  color: var(--color-text-muted);
  letter-spacing: 1px;
}

.howto-check-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--color-text-muted);
  letter-spacing: 1px;
  cursor: pointer;
}

.howto-check-label input[type="checkbox"] {
  accent-color: var(--color-accent);
  width: 14px;
  height: 14px;
  cursor: pointer;
}

.howto-vs-cols {
  display: flex;
  gap: 24px;
  justify-content: center;
  align-items: flex-start;
}

.howto-vs-player {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.howto-vs-label {
  font-size: 14px;
  color: var(--color-accent);
  letter-spacing: 3px;
  margin-bottom: 4px;
}

.howto-vs-divider {
  width: 1px;
  align-self: stretch;
  background: var(--color-border-subtle);
  margin: 0 4px;
}

.howto-esc-row {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--color-border-subtle);
  justify-content: center;
}