:root {
            --primary-color: #2c3e50;
            --secondary-color: #3498db;
            --accent-color: #e74c3c;
            --success-color: #27ae60;
            --warning-color: #f39c12;
            --background-color: #f8f9fa;
            --card-background: #ffffff;
            --text-color: #2c3e50;
            --text-light: #7f8c8d;
            --border-color: #e9ecef;
            --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.15);
        }

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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background-color: var(--background-color);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header Styles */
        .header {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: white;
            padding: 60px 0;
            text-align: center;
            box-shadow: var(--shadow);
        }

        .header h1 {
            font-size: 3rem;
            font-weight: 300;
            margin-bottom: 10px;
        }

        /* Header variants for different pages */
        .header.compact {
            padding: 40px 0;
        }

        .header.compact h1 {
            font-size: 2.5rem;
        }

        .subtitle {
            font-size: 1.2rem;
            opacity: 0.9;
            margin-bottom: 20px;
        }

        .header.compact .subtitle {
            font-size: 1.1rem;
        }

        .meta-info {
            font-size: 0.9rem;
            opacity: 0.8;
            border: 1px solid rgba(255, 255, 255, 0.3);
            display: inline-block;
            padding: 8px 16px;
            border-radius: 20px;
            background: rgba(255, 255, 255, 0.1);
        }

        /* Navigation */
        .nav {
            background: var(--card-background);
            padding: 20px 0;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        /* Compact navigation for inner pages */
        .nav.compact {
            padding: 15px 0;
        }

        .nav-list {
            display: flex;
            justify-content: center;
            gap: 30px;
            list-style: none;
            flex-wrap: wrap;
        }

        /* Compact navigation links */
        .nav.compact .nav-list {
            gap: 20px;
        }

        .nav-list a {
            text-decoration: none;
            color: var(--primary-color);
            font-weight: 500;
            padding: 10px 15px;
            border-radius: 5px;
            transition: all 0.3s ease;
        }

        /* Compact navigation link styling */
        .nav.compact .nav-list a {
            padding: 8px 12px;
            font-size: 0.9rem;
        }

        .nav-list a:hover {
            background-color: var(--secondary-color);
            color: white;
            transform: translateY(-2px);
        }

        .nav-list a.current {
            background-color: var(--primary-color);
            color: white;
        }

        /* Main Content */
        .main {
            padding: 40px 0;
        }

        .intro-section {
            text-align: center;
            margin-bottom: 60px;
        }

        .persona-avatar {
            width: 150px;
            height: 150px;
            background: linear-gradient(135deg, var(--secondary-color), var(--success-color));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 30px auto 30px;
            font-size: 3rem;
            color: white;
            font-weight: bold;
            box-shadow: var(--shadow);
        }

        .intro-text {
            font-size: 1.3rem;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto;
        }

        /* Cards */
        .card {
            background: var(--card-background);
            border-radius: 12px;
            padding: 30px;
            margin-bottom: 30px;
            box-shadow: var(--shadow);
            transition: all 0.3s ease;
            border-left: 4px solid var(--secondary-color);
        }

        /* Compact card styling for inner pages */
        .card.compact {
            padding: 40px;
            border-radius: 10px;
        }

        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-5px);
        }

        .card h2 {
            color: var(--primary-color);
            margin-bottom: 20px;
            font-size: 2rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        /* H2 styling for inner pages */
        .card.compact h2 {
            border-bottom: 3px solid var(--secondary-color);
            padding-bottom: 10px;
            display: block;
        }

        .card h3 {
            color: var(--secondary-color);
            margin-bottom: 15px;
            font-size: 1.3rem;
        }

        /* H3 styling for inner pages */
        .card.compact h3 {
            margin: 25px 0 15px 0;
        }

        .card h4 {
            color: var(--primary-color);
            margin-bottom: 10px;
            margin-top: 20px;
        }

        .card p {
            margin-bottom: 15px;
            line-height: 1.7;
        }

        /* Lists */
        .skill-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
            margin: 20px 0;
        }

        .skill-category {
            background: #f8f9fa;
            padding: 20px;
            border-radius: 8px;
            border-left: 3px solid var(--secondary-color);
        }

        .skill-category h4 {
            color: var(--primary-color);
            margin-bottom: 15px;
            font-size: 1.1rem;
        }

        .skill-category ul {
            list-style: none;
            padding: 0;
        }

        .skill-category li {
            padding: 5px 0;
            position: relative;
            padding-left: 20px;
        }

        .skill-category li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--success-color);
            font-weight: bold;
        }

        /* Portfolio Structure */
        .portfolio-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin: 20px 0;
        }

        .portfolio-item {
            background: #f8f9fa;
            padding: 20px;
            border-radius: 8px;
            text-align: center;
            border: 1px solid var(--border-color);
            transition: all 0.3s ease;
        }

        .portfolio-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow);
        }

        .portfolio-number {
            display: inline-block;
            width: 40px;
            height: 40px;
            background: var(--secondary-color);
            color: white;
            border-radius: 50%;
            line-height: 40px;
            margin-bottom: 15px;
            font-weight: bold;
        }

        /* Blockquotes */
        .guidance-quote {
            background: #f8f9fa;
            border-left: 4px solid var(--secondary-color);
            padding: 25px;
            margin: 20px 0;
            border-radius: 0 8px 8px 0;
            font-style: italic;
            position: relative;
        }

        .guidance-quote::before {
            content: '';
            font-size: 3rem;
            color: var(--secondary-color);
            position: absolute;
            top: 10px;
            left: 15px;
            opacity: 0.5;
        }

        .guidance-quote p {
            margin: 10px 0;
            padding-left: 20px;
        }

        /* Learning Approach Grid */
        .learning-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin: 30px 0;
        }

        .learning-category {
            background: var(--card-background);
            padding: 25px;
            border-radius: 10px;
            box-shadow: var(--shadow);
            border-top: 4px solid var(--success-color);
        }

        .learning-category.growth {
            border-top-color: var(--warning-color);
        }

        .learning-category.preferences {
            border-top-color: var(--secondary-color);
        }

        /* Best Practices List */
        .best-practices {
            counter-reset: practice-counter;
        }

        .best-practices li {
            counter-increment: practice-counter;
            padding: 15px;
            margin: 10px 0;
            background: #f8f9fa;
            border-radius: 8px;
            border-left: 4px solid var(--success-color);
            position: relative;
            padding-left: 60px;
        }

        .best-practices li::before {
            content: counter(practice-counter);
            position: absolute;
            left: 20px;
            top: 50%;
            transform: translateY(-50%);
            background: var(--success-color);
            color: white;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }

        /* Footer */
        .footer {
            background: var(--primary-color);
            color: white;
            text-align: center;
            padding: 40px 0;
            margin-top: 60px;
        }

        /* Compact footer for inner pages */
        .footer.compact {
            padding: 30px 0;
            margin-top: 50px;
        }

        .footer p {
            opacity: 0.8;
        }

        .footer.compact p {
            font-size: 0.9rem;
        }

        /* Icons */
        .icon {
            display: inline-block;
            width: 24px;
            height: 24px;
            margin-right: 8px;
        }

        /* Navigation buttons */
        .page-nav {
            display: flex;
            justify-content: space-between;
            margin: 30px 0;
            flex-wrap: wrap;
            gap: 15px;
        }

        .page-nav a {
            background: var(--secondary-color);
            color: white;
            padding: 10px 20px;
            text-decoration: none;
            border-radius: 5px;
            transition: all 0.3s ease;
            font-weight: 500;
        }

        .page-nav a:hover {
            background: var(--primary-color);
            transform: translateY(-2px);
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .container {
                padding: 0 15px;
            }

            .header h1 {
                font-size: 2rem;
            }

            .header.compact h1 {
                font-size: 2rem;
            }

            .nav-list {
                gap: 15px;
            }

            .nav.compact .nav-list {
                gap: 10px;
            }

            .nav-list a {
                padding: 6px 10px;
                font-size: 0.8rem;
            }

            .nav.compact .nav-list a {
                padding: 6px 10px;
                font-size: 0.8rem;
            }

            .skill-list {
                grid-template-columns: 1fr;
            }

            .portfolio-grid {
                grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            }

            .learning-grid {
                grid-template-columns: 1fr;
            }

            .card {
                padding: 25px;
            }

            .card.compact {
                padding: 25px;
            }

            .page-nav {
                flex-direction: column;
            }

            .page-nav a {
                text-align: center;
            }
        }

        /* Smooth scrolling */
        html {
            scroll-behavior: smooth;
        }

        /* Animations */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .card {
            animation: fadeInUp 0.6s ease forwards;
        }

        .card:nth-child(even) {
            animation-delay: 0.1s;
        }

        .card:nth-child(odd) {
            animation-delay: 0.2s;
        }