:root {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --accent-primary: #3b82f6;
  --accent-hover: #2563eb;
  --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
  --success-color: #10b981;
  --error-color: #ef4444;
  --glass-bg: rgba(30, 41, 59, 0.7);
  --glass-border: rgba(255, 255, 255, 0.1);
}

.pdf-app-wrapper {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: calc(100vh - 64px);
  display: flex;
  flex-direction: column;
}

.pdf-app-wrapper * {
  box-sizing: border-box;
}

.pdf-app-wrapper .hidden {
  display: none !important;
}

.pdf-app-wrapper .icon {
  width: 24px;
  height: 24px;
}
.pdf-app-wrapper .icon-large {
  width: 64px;
  height: 64px;
  margin-bottom: 16px;
}

.pdf-app-wrapper .accent-color {
  color: var(--accent-primary);
}

/* Glassmorphism Utilities */
.pdf-app-wrapper .glass-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  padding: 40px;
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
  width: 100%;
}

/* Common Button Styles */
.pdf-app-wrapper .btn {
  border: none;
  border-radius: 8px;
  padding: 12px 24px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
}

.pdf-app-wrapper .btn-primary {
  background: var(--accent-gradient);
  color: white;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}

.pdf-app-wrapper .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.6);
}

.pdf-app-wrapper .btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
}

.pdf-app-wrapper .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.05);
}

/* Layout */
.pdf-app-wrapper .app-container {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 40px 20px;
}

.pdf-app-wrapper .header {
  text-align: center;
  margin-bottom: 60px;
}

.pdf-app-wrapper .header h1 {
  font-size: 3rem;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 16px;
}

.pdf-app-wrapper .header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 500px;
  margin: 0 auto;
}

.pdf-app-wrapper .main-content {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Dropzone */
.pdf-app-wrapper .dropzone {
  border: 2px dashed var(--glass-border);
  transition: all 0.3s ease;
}

.pdf-app-wrapper .dropzone:hover {
  border-color: var(--accent-primary);
  background: rgba(59, 130, 246, 0.05);
}

.pdf-app-wrapper .file-input {
  width: 0.1px;
  height: 0.1px;
  opacity: 0;
  overflow: hidden;
  position: absolute;
  z-index: -1;
}

.pdf-app-wrapper .dropzone h2 {
  margin: 20px 0 10px;
  font-size: 1.5rem;
}

.pdf-app-wrapper .dropzone p {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.pdf-app-wrapper .error-message {
  color: var(--error-color);
  margin-top: 16px;
  font-size: 0.9rem;
}

/* Processing View */
.pdf-app-wrapper .progress-view h3 {
  margin: 20px 0 10px;
}

.pdf-app-wrapper .progress-view p {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.pdf-app-wrapper .progress-bar-container {
  height: 8px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 16px;
}

.pdf-app-wrapper .progress-bar {
  height: 100%;
  background: var(--accent-gradient);
  transition: width 0.3s ease;
}

.pdf-app-wrapper .warning-text {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Success View */
.pdf-app-wrapper .success-icon {
  color: var(--success-color);
}

.pdf-app-wrapper .success-view h3 {
  margin: 20px 0 10px;
}

.pdf-app-wrapper .success-view p {
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.pdf-app-wrapper .actions {
  display: flex;
  gap: 16px;
  justify-content: center;
}

/* File Info */
.pdf-app-wrapper .file-info .file-icon {
  color: var(--accent-primary);
}

.pdf-app-wrapper .file-info h3 {
  margin: 20px 0 5px;
}

.pdf-app-wrapper .file-info p {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

/* Animations */
@keyframes pulse {
  0% { transform: scale(1); opacity: 0.8; color: var(--text-secondary); }
  50% { transform: scale(1.1); opacity: 1; color: var(--accent-primary); }
  100% { transform: scale(1); opacity: 0.8; color: var(--text-secondary); }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.pdf-app-wrapper .animate-slide-up {
  animation: slideUp 0.5s ease-out forwards;
}

.pdf-app-wrapper .icon-pulse {
  animation: pulse 3s infinite ease-in-out;
}

.pdf-app-wrapper .icon-spin {
  animation: spin 2s linear infinite;
}