/* ── Mode tabs ── */
.mode-tabs {
  display: flex;
  gap: 6px;
  width: 100%;
}

.mode-tab {
  flex: 1;
  padding: 10px 0;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  background: var(--white);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.mode-tab:hover {
  border-color: var(--green-light);
  color: var(--green);
}

.mode-tab.active {
  background: var(--green);
  border-color: var(--green);
  color: var(--white);
}

/* ── Flag grid ── */
.flag-grid {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

/* ── Flag / shape card ── */
.flag-card {
  border: 2px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.15s, border-color 0.2s, box-shadow 0.2s;
  background: var(--white);
}

.flag-card:hover:not(.disabled) {
  transform: translateY(-3px);
  border-color: var(--green-light);
  box-shadow: 0 4px 16px rgba(58, 125, 68, 0.12);
}

.flag-card.correct {
  border-color: var(--green);
  background: var(--green-bg);
  box-shadow: 0 0 12px rgba(58, 125, 68, 0.2);
}

.flag-card.wrong {
  border-color: var(--red);
  background: var(--red-bg);
  opacity: 0.6;
}

.flag-card.disabled { cursor: default; }

.flag-card img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  display: block;
}

/* Shape card */
.flag-card.shape-card {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem;
  aspect-ratio: 1 / 1;
}

.flag-card.shape-card img {
  width: 80%;
  height: 80%;
  aspect-ratio: auto;
  object-fit: contain;
}

/* ── Capital card ── */
.capital-card {
  border: 2px solid var(--border);
  border-radius: 10px;
  padding: 14px 10px;
  text-align: center;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 700;
  color: var(--dark);
  background: var(--white);
  transition: transform 0.15s, border-color 0.2s, background 0.15s;
}

.capital-card:hover:not(.disabled) {
  transform: translateY(-3px);
  border-color: var(--green-light);
  background: var(--green-bg);
}

.capital-card.correct {
  border-color: var(--green);
  background: var(--green-bg);
  color: var(--green);
}

.capital-card.wrong {
  border-color: var(--red);
  background: var(--red-bg);
  color: var(--red);
  opacity: 0.6;
}

.capital-card.disabled { cursor: default; }

/* ── Feedback ── */
.flag-feedback {
  font-size: 1rem;
  font-weight: 700;
  text-align: center;
  min-height: 1.5rem;
  letter-spacing: 0.02em;
}

/* ── Game over ── */
.game-over-section {
  display: none;
  text-align: center;
  width: 100%;
}

.game-over-section h2 {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 0.5rem;
}

.game-over-section p {
  color: var(--gray);
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

@media (max-width: 420px) {
  .flag-grid { gap: 6px; }
}