:root {
            --primary-50: #eff6ff;
            --primary-100: #dbeafe;
            --primary-200: #bfdbfe;
            --primary-300: #93c5fd;
            --primary-400: #60a5fa;
            --primary-500: #3b82f6;
            --primary-600: #2563eb;
            --primary-700: #1d4ed8;
            --primary-800: #1e40af;
            --primary-900: #1e3a8a;
            
            --emerald-400: #34d399;
            --emerald-500: #10b981;
            --emerald-600: #059669;
            
            --orange-400: #fb923c;
            --orange-500: #f59e0b;
            --orange-600: #d97706;
            
            --purple-400: #a78bfa;
            --purple-500: #8b5cf6;
            --purple-600: #7c3aed;
            
            --gray-50: #f9fafb;
            --gray-100: #f3f4f6;
            --gray-200: #e5e7eb;
            --gray-300: #d1d5db;
            --gray-600: #4b5563;
            --gray-700: #374151;
            --gray-800: #1f2937;
            --gray-900: #111827;
            
            --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
            --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
            --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
            --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', sans-serif;
            background: linear-gradient(135deg, var(--primary-50) 0%, #fafafa 30%, var(--primary-100) 100%);
            color: var(--gray-800);
            overflow: hidden;
            height: 100vh;
        }

        .particles-bg {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 0;
            pointer-events: none;
        }

        .container {
            position: relative;
            z-index: 10;
            width: 100%;
            height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 2rem;
        }

        .slide {
            position: absolute;
            width: min(90vw, 1200px);
            max-height: 85vh;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(20px);
            border-radius: 24px;
            padding: 3rem;
            box-shadow: var(--shadow-xl);
            border: 1px solid rgba(255, 255, 255, 0.6);
            opacity: 0;
            visibility: hidden;
            transform: translateY(30px) scale(0.95);
            overflow-y: auto;
            scrollbar-width: thin;
            scrollbar-color: var(--primary-300) transparent;
        }

        .slide::-webkit-scrollbar {
            width: 6px;
        }

        .slide::-webkit-scrollbar-track {
            background: transparent;
        }

        .slide::-webkit-scrollbar-thumb {
            background: var(--primary-300);
            border-radius: 3px;
        }

        .slide.active {
            opacity: 1;
            visibility: visible;
            transform: translateY(0) scale(1);
        }

        .slide h1 {
            font-family: 'Poppins', sans-serif;
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 700;
            margin-bottom: 1.5rem;
            background: linear-gradient(135deg, var(--primary-600) 0%, var(--emerald-500) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }

        .slide h2 {
            font-family: 'Poppins', sans-serif;
            font-size: clamp(1.5rem, 3vw, 2rem);
            font-weight: 600;
            margin-bottom: 1rem;
            color: var(--primary-700);
        }

        .slide h3 {
            font-family: 'Poppins', sans-sans-serif;
            font-size: clamp(1.2rem, 2.5vw, 1.5rem);
            font-weight: 500;
            margin-bottom: 0.75rem;
            color: var(--emerald-600);
        }

        .slide p {
            font-size: 1.1rem;
            line-height: 1.7;
            margin-bottom: 1.5rem;
            color: var(--gray-700);
        }

        .card {
            background: rgba(255, 255, 255, 0.7);
            backdrop-filter: blur(10px);
            border-radius: 16px;
            padding: 1.5rem;
            margin: 1rem 0;
            box-shadow: var(--shadow-md);
            border: 1px solid rgba(255, 255, 255, 0.4);
            transition: all 0.3s ease;
        }

        .card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-200);
        }

        .job-card {
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(249, 250, 251, 0.9) 100%);
            border-radius: 20px;
            padding: 2rem;
            margin: 1.5rem 0;
            box-shadow: var(--shadow-md);
            border-left: 4px solid var(--emerald-500);
            transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
            position: relative;
            overflow: hidden;
        }

        .job-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--emerald-500), var(--primary-500), var(--purple-500));
            transform: scaleX(0);
            transition: transform 0.4s ease;
        }

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

        .job-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-xl);
        }

        .job-title {
            font-family: 'Poppins', sans-serif;
            font-size: 1.4rem;
            font-weight: 600;
            color: var(--primary-700);
            margin-bottom: 0.75rem;
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .job-title i {
            color: var(--emerald-500);
            font-size: 1.2rem;
        }

        .skills-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            margin-top: 1rem;
        }

        .skill-tag {
            background: linear-gradient(135deg, var(--primary-100), var(--primary-200));
            color: var(--primary-700);
            padding: 0.5rem 1rem;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            border: 1px solid var(--primary-200);
            transition: all 0.3s ease;
        }

        .skill-tag:hover {
            background: linear-gradient(135deg, var(--primary-200), var(--primary-300));
            transform: translateY(-1px);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }

        .stat-card {
            background: linear-gradient(135deg, var(--primary-500), var(--emerald-500));
            color: white;
            padding: 2rem;
            border-radius: 20px;
            text-align: center;
            box-shadow: var(--shadow-lg);
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
        }

        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transition: left 0.6s ease;
        }

        .stat-card:hover::before {
            left: 100%;
        }

        .stat-card:hover {
            transform: translateY(-4px) scale(1.02);
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

        .stat-label {
            font-size: 1rem;
            opacity: 0.9;
        }

        .timeline {
            position: relative;
            padding-left: 2rem;
            margin: 2rem 0;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 0.5rem;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(to bottom, var(--primary-500), var(--emerald-500));
        }

        .timeline-item {
            position: relative;
            padding-bottom: 2rem;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -0.4rem;
            top: 0.5rem;
            width: 1rem;
            height: 1rem;
            background: var(--emerald-500);
            border-radius: 50%;
            border: 3px solid white;
            box-shadow: var(--shadow-md);
        }

        .navigation {
            position: fixed;
            bottom: 2rem;
            left: 50%;
            transform: translateX(-50%);
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(20px);
            padding: 1rem 2rem;
            border-radius: 50px;
            box-shadow: var(--shadow-lg);
            border: 1px solid rgba(255, 255, 255, 0.6);
            z-index: 1000;
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .nav-dots {
            display: flex;
            gap: 0.5rem;
        }

        .nav-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--gray-300);
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .nav-dot.active {
            background: var(--primary-500);
            transform: scale(1.5);
        }

        .nav-info {
            color: var(--gray-600);
            font-weight: 500;
            font-size: 0.9rem;
        }

        .controls {
            position: fixed;
            top: 2rem;
            right: 2rem;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(20px);
            padding: 1.5rem;
            border-radius: 20px;
            box-shadow: var(--shadow-lg);
            border: 1px solid rgba(255, 255, 255, 0.6);
            z-index: 1000;
            font-size: 0.85rem;
            color: var(--gray-600);
        }

        .controls div {
            margin-bottom: 0.5rem;
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .controls i {
            color: var(--primary-500);
            width: 16px;
            text-align: center;
        }

        .intro-animation {
            animation: slideInUp 1s cubic-bezier(0.23, 1, 0.32, 1);
        }

        @keyframes slideInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .floating {
            animation: float 6s ease-in-out infinite;
        }

        @keyframes float {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-10px); }
        }

        .pulse {
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.05); }
        }

        .table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            background: rgba(255, 255, 255, 0.6);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-md);
            margin: 2rem 0;
        }

        .table th {
            background: linear-gradient(135deg, var(--primary-500), var(--emerald-500));
            color: white;
            padding: 1rem;
            font-weight: 600;
            text-align: left;
        }

        .table td {
            padding: 1rem;
            border-bottom: 1px solid var(--gray-200);
            transition: background-color 0.3s ease;
        }

        .table tr:hover td {
            background-color: var(--primary-50);
        }

        .difficulty-easy {
            color: var(--emerald-500);
            font-weight: 600;
        }

        .difficulty-medium {
            color: var(--orange-500);
            font-weight: 600;
        }

        .difficulty-hard {
            color: #ef4444;
            font-weight: 600;
        }

        .highlight-box {
            background: linear-gradient(135deg, var(--emerald-100), var(--primary-100));
            border: 2px solid var(--emerald-200);
            border-radius: 16px;
            padding: 2rem;
            margin: 2rem 0;
            position: relative;
        }

        .highlight-box::before {
            content: '💡';
            position: absolute;
            top: -0.5rem;
            left: 1rem;
            background: white;
            padding: 0.5rem;
            border-radius: 50%;
            font-size: 1.2rem;
        }

        .resources-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }

        .loading {
            position: fixed;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            z-index: 9999;
            text-align: center;
        }

        .spinner {
            width: 50px;
            height: 50px;
            border: 4px solid var(--primary-100);
            border-top: 4px solid var(--primary-500);
            border-radius: 50%;
            animation: spin 1s linear infinite;
            margin-bottom: 1rem;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        .logo {
            position: fixed;
            top: 2rem;
            left: 2rem;
            z-index: 1000;
            font-family: 'Poppins', sans-serif;
            font-weight: 700;
            font-size: 1.2rem;
            background: linear-gradient(135deg, var(--primary-600), var(--emerald-500));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        @media (max-width: 768px) {
            .container {
                padding: 1rem;
            }
            
            .slide {
                width: 95vw;
                padding: 2rem;
                max-height: 90vh;
            }
            
            .controls, .logo {
                position: relative;
                top: auto;
                right: auto;
                left: auto;
                margin-bottom: 1rem;
            }
            
            .stats-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            
            .resources-grid {
                grid-template-columns: 1fr;
            }
        }
        .timeline-item p {
    margin-left: 2em;
}
.timeline-item h4 {
    margin-left: 2em;
}
.controls.hidden {
    display: none !important;
}

/* Toggle Controls Button Styling */
#toggle-controls {
    position: fixed;
    top: 12px;
    right: 18px;
    z-index: 1000;
    background: linear-gradient(135deg, var(--primary-500), var(--emerald-500));
    color: #fff;
    border: none;
    border-radius: 24px;
    padding: 0.3rem 0.9rem;
    font-size: 1rem;
    font-family: 'Poppins', 'Inter', Arial, sans-serif;
    font-weight: 600;
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
    cursor: pointer;
    transition: background 0.3s, transform 0.2s, box-shadow 0.2s;
    outline: none;
}

#toggle-controls:hover, #toggle-controls:focus {
    background: linear-gradient(135deg, var(--emerald-600), var(--primary-600));
    transform: translateY(-2px) scale(1.04);
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}