.btn-primary {
  padding: 16px 32px;
  background: var(--gradient-primary);
  color: white;
  text-decoration: none;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 1rem;
  box-shadow: 0 10px 25px rgba(139, 92, 246, 0.3);
  cursor: pointer;
  border: none;
  display: inline-block;
}

.btn-secondary {
  padding: 16px 32px;
  background: var(--card-bg);
  border: 1px solid var(--border-glass);
  color: white;
  text-decoration: none;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
}

.nav-btn {
  padding: 10px 20px;
  background: var(--gradient-primary);
  color: white;
  text-decoration: none;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: var(--shadow-btn);
  transition: transform 0.2s;
}

.nav-btn:hover { transform: translateY(-2px); }

.card-base {
  background: var(--card-bg);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
}

.lang-toggle {
  display: inline-flex;
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-pill);
  padding: 4px;
  gap: 3px;
}

.lang-btn {
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1;
  font-weight: 700;
  padding: 8px 12px;
  border-radius: var(--radius-pill);
  cursor: pointer;
}

.lang-btn.active {
  background: var(--gradient-accent);
  color: white;
}

.lightbox-overlay {
  cursor: zoom-out;
  animation: fadeIn 0.15s ease both;
}

.lightbox-img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-modal);
  cursor: default;
}

.lightbox-close {
  position: fixed;
  top: 18px;
  right: 24px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--border-glass);
  color: white;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
}

.spinner {
  width: 34px;
  height: 34px;
  border: 3px solid var(--border-glass);
  border-top-color: var(--accent-cyan);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 40px auto;
}