body {
            font-family: 'Sora', sans-serif;
        }
        
        .card-hover {
            transition: all 0.3s ease;
        }
        
        .card-hover:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
        }
        
        .course-card {
            border-left: 4px solid transparent;
            transition: all 0.3s ease;
        }
        
        .course-card.recommended {
            border-left-color: #ef6c00;
            background: linear-gradient(135deg, #fffaf0 0%, #ffffff 100%);
        }
        
        .difficulty-beginner {
            background-color: rgba(34, 197, 94, 0.1);
            color: #16a34a;
        }
        
        .difficulty-intermediate {
            background-color: rgba(245, 158, 11, 0.1);
            color: #d97706;
        }
        
        .difficulty-advanced {
            background-color: rgba(239, 68, 68, 0.1);
            color: #dc2626;
        }
        
        .progress-ring {
            transform: rotate(-90deg);
        }
        
        .progress-ring-circle {
            transition: stroke-dashoffset 0.3s;
        }
        
        .mobile-menu {
            transform: translateX(-100%);
            transition: transform 0.3s ease;
        }
        
        .mobile-menu.open {
            transform: translateX(0);
        }
        
        .menu-overlay {
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s ease;
        }
        
        .menu-overlay.open {
            opacity: 1;
            visibility: visible;
        }
        
        .tab-active {
            border-bottom: 3px solid #ef6c00;
            color: #ef6c00;
            font-weight: 600;
        }
        
        .scrollbar-hide {
            -ms-overflow-style: none;
            scrollbar-width: none;
        }
        
        .scrollbar-hide::-webkit-scrollbar {
            display: none;
        }

        .auth-container {
            min-height: 100vh;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        }
        
        .auth-card {
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
            transition: all 0.3s ease;
        }
        
        .input-field {
            transition: all 0.3s ease;
        }
        
        .input-field:focus {
            box-shadow: 0 0 0 3px rgba(239, 108, 0, 0.1);
        }
        
        .photo-upload-area {
            border: 2px dashed #d1d5db;
            transition: all 0.3s ease;
            cursor: pointer;
        }
        
        .photo-upload-area:hover {
            border-color: #667eea;
            background-color: #f8fafc;
        }
        
        .photo-upload-area.dragover {
            border-color: #667eea;
            background-color: #e0e7ff;
        }
        
        .specialty-tag {
            display: inline-flex;
            align-items: center;
            background-color: #eceff1;
            border-radius: 20px;
            padding: 0.5rem 1rem;
            font-size: 0.875rem;
            margin: 0.25rem;
            transition: all 0.3s ease;
        }
        
        .specialty-tag:hover {
            background-color: #0d47a1;
            color: white;
        }
        
        .progress-bar {
            height: 6px;
            border-radius: 3px;
            background-color: #e5e7eb;
            overflow: hidden;
        }
        
        .progress-fill {
            height: 100%;
            border-radius: 3px;
            background: linear-gradient(90deg, #667eea, #764ba2);
        }
        
        .step-indicator {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            font-size: 0.875rem;
        }
        
        .step-active {
            background-color: #667eea;
            color: white;
        }
        
        .step-completed {
            background-color: #10b981;
            color: white;
        }
        
        .step-pending {
            background-color: #e5e7eb;
            color: #6b7280;
        }
        .tab-active {
            border-bottom: 3px solid #ef6c00;
            color: #ef6c00;
            font-weight: 600;
        }
        
        .popup-overlay {
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s ease;
        }
        
        .popup-overlay.open {
            opacity: 1;
            visibility: visible;
        }
        
        .popup {
            transform: scale(0.9);
            opacity: 0;
            transition: all 0.3s ease;
        }
        
        .popup.open {
            transform: scale(1);
            opacity: 1;
        }
        
        .skill-level {
            height: 8px;
            border-radius: 4px;
            background-color: #e5e7eb;
            overflow: hidden;
        }
        
        .skill-level-fill {
            height: 100%;
            border-radius: 4px;
            background: linear-gradient(90deg, #ef6c00, #ff9800);
        }

        .skill-tag {
            display: inline-flex;
            align-items: center;
            background-color: #eceff1;
            border-radius: 20px;
            padding: 0.25rem 0.75rem;
            font-size: 0.875rem;
            margin: 0.25rem;
        }