.downloader-section {
  padding: var(--space-3xl) 0;
  position: relative;
}

.downloader-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  max-width: 800px;
  margin: 0 auto var(--space-3xl);
  box-shadow: var(--shadow-lg);
}

.downloader-form {
  margin-top: var(--space-xl);
}

.input-group {
  position: relative;
  margin-bottom: var(--space-md);
}

.url-input {
  width: 100%;
  padding: 16px 20px;
  background: var(--bg-secondary);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 15px;
  font-family: inherit;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.url-input:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--bg-primary);
  box-shadow: 0 0 0 4px rgba(0, 102, 255, 0.1);
}

.url-input::placeholder {
  color: var(--text-tertiary);
}

.platform-detector {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 10px 14px;
  background: rgba(0, 186, 136, 0.1);
  border: 1px solid rgba(0, 186, 136, 0.2);
  border-radius: var(--radius-sm);
  margin-top: var(--space-sm);
  font-size: 14px;
  color: var(--success);
  animation: slide-down 0.3s ease-out;
}

@keyframes slide-down {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.detector-icon::before {
  content: '✓';
  font-weight: 600;
  font-size: 16px;
}

.btn-download {
  width: 100%;
  padding: 16px;
  font-size: 16px;
  justify-content: center;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: 600;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow-sm);
}

.btn-download:hover:not(:disabled) {
  background: var(--primary-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-download:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.btn-download:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-download.loading svg {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Status Container */
.status-container {
  margin-top: var(--space-lg);
  padding: var(--space-lg);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  animation: fade-in 0.3s ease-out;
}

.status-item {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.status-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
}

.status-icon::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  border: 3px solid white;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.status-content {
  flex: 1;
}

.status-title {
  font-weight: 600;
  margin-bottom: var(--space-xs);
  color: var(--text-primary);
  font-size: 15px;
}

.status-message {
  font-size: 14px;
  color: var(--text-secondary);
}

.progress-bar {
  width: 100%;
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--primary);
  border-radius: var(--radius-full);
  transition: width 0.3s ease;
  animation: progress-shimmer 1.5s ease-in-out infinite;
}

@keyframes progress-shimmer {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

/* Results Container */
.results-container {
  margin-top: var(--space-lg);
  padding: var(--space-lg);
  background: var(--bg-secondary);
  border: 1px solid var(--success);
  border-radius: var(--radius);
  animation: slide-in 0.3s ease-out;
}

@keyframes slide-in {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-lg);
}

.results-header h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--success);
}

.btn-close {
  background: transparent;
  border: none;
  color: var(--text-tertiary);
  font-size: 24px;
  cursor: pointer;
  line-height: 1;
  padding: var(--space-xs);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}

.btn-close:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.result-item {
  padding: var(--space-md);
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: var(--space-sm);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.2s;
}

.result-item:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.result-item:last-child {
  margin-bottom: 0;
}

.result-info {
  flex: 1;
}

.result-quality {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
  font-size: 15px;
}

.result-size {
  font-size: 13px;
  color: var(--text-secondary);
}

.result-action {
  margin-left: var(--space-md);
}

/* Error Container */
.error-container {
  margin-top: var(--space-lg);
  padding: var(--space-lg);
  background: rgba(240, 68, 56, 0.05);
  border: 1px solid rgba(240, 68, 56, 0.2);
  border-radius: var(--radius);
  text-align: center;
  animation: shake 0.4s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-8px); }
  75% { transform: translateX(8px); }
}

.error-icon {
  font-size: 40px;
  margin-bottom: var(--space-sm);
}

.error-content h4 {
  color: var(--error);
  margin-bottom: var(--space-sm);
  font-size: 16px;
  font-weight: 600;
}

.error-content p {
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  font-size: 14px;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-3xl);
}

.feature-card {
  position: relative;
  padding: var(--space-xl);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-smooth);
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-smooth);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon-wrapper {
  width: 64px;
  height: 64px;
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  background: var(--bg-secondary);
  color: var(--primary);
  transition: all var(--transition-base);
}

.feature-card:hover .feature-icon-wrapper {
  background: var(--primary);
  color: white;
  transform: scale(1.1) rotate(5deg);
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
  transition: color var(--transition-base);
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
  margin: 0;
  transition: color var(--transition-base);
}

/* FAQ Section */
.faq-section {
  padding: var(--space-3xl) 0;
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
}

.faq-item {
  padding: var(--space-lg);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.faq-item h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.faq-item p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
  margin: 0;
}

.faq-item a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
}

.faq-item a:hover {
  text-decoration: underline;
}

/* Disclaimer Section */
.disclaimer-section {
  background: var(--bg-secondary);
  padding: var(--space-2xl) 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  transition: background-color var(--transition-smooth);
}

.disclaimer-card {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
  background: var(--bg-elevated);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-smooth);
}

.disclaimer-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}

.disclaimer-icon {
  font-size: 32px;
  flex-shrink: 0;
  line-height: 1;
  filter: grayscale(0.3);
}

.disclaimer-content h3 {
  margin: 0 0 var(--space-md) 0;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  transition: color var(--transition-smooth);
}

.disclaimer-content p {
  margin: 0;
  line-height: 1.7;
  color: var(--text-secondary);
  font-size: 15px;
  transition: color var(--transition-smooth);
}

.disclaimer-content p + p {
  margin-top: var(--space-md);
}

.disclaimer-content strong {
  color: var(--text-primary);
  font-weight: 600;
}

.disclaimer-content a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.disclaimer-content a:hover {
  color: var(--primary-hover);
  text-decoration: underline;
}

/* Responsive */
@media (max-width: 1024px) {
  .downloader-card {
    padding: var(--space-xl);
  }
}

@media (max-width: 768px) {
  .downloader-card {
    padding: var(--space-lg);
  }
  
  .features-grid,
  .faq-grid {
    grid-template-columns: 1fr;
  }
  
  .result-item {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }
  
  .result-action {
    margin-left: 0;
    width: 100%;
  }
  
  .result-action .btn {
    width: 100%;
  }
  
  .disclaimer-card {
    flex-direction: column;
    gap: var(--space-md);
  }
}