.dsa-header { text-align: center; padding: 44px 16px 22px; }
.dsa-header h2 { font-size: 1.9rem; color: var(--color-primary); margin-bottom: 6px; }
.dsa-header p { color: var(--color-text-muted); }

.streak-summary { display: flex; justify-content: center; gap: 20px; padding: 0 16px 26px; }
.streak-card {
  background: var(--color-card); border-radius: var(--radius-lg); padding: 20px 32px;
  text-align: center; box-shadow: var(--shadow); border-top: 3px solid var(--color-accent);
}
.streak-card h3 { font-size: 1.8rem; color: var(--color-primary); }
.streak-card p { font-size: 0.85rem; color: var(--color-text-muted); }

.add-form { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; padding: 0 16px 26px; }
.add-form input, .add-form select {
  padding: 10px 14px; border: 1px solid var(--color-border);
  border-radius: var(--radius); font-size: 0.95rem; background: var(--color-card);
}
.add-form button {
  background-color: var(--color-accent); color: #fff; border: none;
  padding: 10px 20px; border-radius: var(--radius); font-weight: 600;
}
.add-form button:hover { background-color: var(--color-accent-hover); }

.dsa-list { max-width: 700px; margin: 0 auto; padding: 0 16px 40px; display: flex; flex-direction: column; gap: 12px; }
.dsa-item {
  background: var(--color-card); padding: 14px 20px; border-radius: var(--radius);
  border-left: 4px solid var(--color-border); box-shadow: var(--shadow);
  display: flex; justify-content: space-between; align-items: center;
}
.dsa-item.Easy { border-left-color: var(--color-success); background: var(--color-success-bg); }
.dsa-item.Medium { border-left-color: var(--color-warning); background: var(--color-warning-bg); }
.dsa-item.Hard { border-left-color: var(--color-danger); background: var(--color-danger-bg); }
.dsa-info { display: flex; flex-direction: column; }
.dsa-name { font-weight: 600; }
.dsa-date { font-size: 0.8rem; color: var(--color-text-muted); }
.difficulty-badge { font-size: 0.72rem; font-weight: 700; padding: 4px 10px; border-radius: 12px; color: #fff; }
.difficulty-badge.Easy { background: var(--color-success); }
.difficulty-badge.Medium { background: var(--color-warning); }
.difficulty-badge.Hard { background: var(--color-danger); }
.dsa-delete { border: none; background: none; font-size: 1rem; margin-left: 10px; }
.empty-state { text-align: center; color: var(--color-text-muted); padding: 24px; font-size: 0.9rem; }