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

        :root {
            --primary: #594d46;
            --secondary: #8c7a6b;
            --accent: #a89584;
            --bg: #fafafa;
            --card-bg: #ffffff;
            --text: #2d3748;
            --text-light: #718096;
        }

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

        /* Navigation */
        nav {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
        }

        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 1.2rem 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
        }

        .nav-links {
            display: flex;
            gap: 2rem;
            list-style: none;
        }

        .nav-links a {
            color: var(--text-light);
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s;
            position: relative;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--secondary);
            transition: width 0.3s;
        }

        .nav-links a:hover {
            color: var(--primary);
        }

        .nav-links a:hover::after {
            width: 100%;
        }

        /* Hero Section */
        .hero {
            max-width: 1200px;
            margin: 0 auto;
            padding: 6rem 2rem;
            text-align: center;
        }

        .hero h1 {
            font-size: 3.5rem;
            color: var(--primary);
            margin-bottom: 1rem;
        }

        .hero .subtitle {
            font-size: 1.3rem;
            color: var(--secondary);
            margin-bottom: 1.5rem;
        }

        .hero p {
            max-width: 700px;
            margin: 0 auto 2rem;
            color: var(--text-light);
            font-size: 1.05rem;
        }

        .social-links {
            display: flex;
            gap: 1.5rem;
            justify-content: center;
            margin-top: 2rem;
        }

        .social-links a {
            color: var(--secondary);
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s;
        }

        .social-links a:hover {
            color: var(--primary);
            transform: translateY(-2px);
        }

        /* Section Styles */
        section {
            max-width: 1200px;
            margin: 0 auto;
            padding: 5rem 2rem;
        }

        .section-header {
            text-align: center;
            margin-bottom: 3rem;
        }

        .section-header h2 {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 0.5rem;
        }

        .section-header p {
            color: var(--text-light);
            font-size: 1.05rem;
        }

        /* Skills Section */
        .skills-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .skill-card {
            background: var(--card-bg);
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            text-align: center;
            transition: transform 0.3s, box-shadow 0.3s;
        }

        .skill-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
        }

        .skill-name {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 1rem;
        }

        .skill-bar {
            background: #e2e8f0;
            height: 8px;
            border-radius: 10px;
            overflow: hidden;
        }

        .skill-progress {
            background: linear-gradient(90deg, var(--secondary), var(--accent));
            height: 100%;
            border-radius: 10px;
            transition: width 1s ease;
        }

        /* Projects Section */
        .projects-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 2rem;
        }

        .project-card {
            background: var(--card-bg);
            border-radius: 12px;
            padding: 2rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            transition: transform 0.3s, box-shadow 0.3s;
        }

        .project-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
        }

        .project-header {
            margin-bottom: 1rem;
        }

        .project-title {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 0.3rem;
        }

        .project-date {
            color: var(--text-light);
            font-size: 0.9rem;
        }

        .project-description {
            color: var(--text);
            margin-bottom: 1rem;
            line-height: 1.7;
        }

        .project-points {
            list-style: none;
            margin: 1rem 0;
        }

        .project-points li {
            color: var(--text-light);
            margin-bottom: 0.8rem;
            padding-left: 1.5rem;
            position: relative;
            font-size: 0.95rem;
        }

        .project-points li::before {
            content: '▸';
            position: absolute;
            left: 0;
            color: var(--secondary);
            font-weight: bold;
        }

        .tech-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-top: 1.5rem;
        }

        .tech-tag {
            background: #f0f4f8;
            color: var(--secondary);
            padding: 0.4rem 0.9rem;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
        }

        /* Education Section */
        .timeline {
            position: relative;
            padding-left: 3rem;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, var(--secondary), var(--accent));
        }

        .timeline-item {
            position: relative;
            margin-bottom: 2.5rem;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -3.5rem;
            top: 0.5rem;
            width: 12px;
            height: 12px;
            background: var(--secondary);
            border-radius: 50%;
            box-shadow: 0 0 0 4px rgba(140, 122, 107, 0.2);
        }

        .timeline-date {
            color: var(--text-light);
            font-size: 0.9rem;
            margin-bottom: 0.3rem;
        }

        .timeline-title {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 0.3rem;
        }

        .timeline-subtitle {
            color: var(--text-light);
        }

        /* Contact Section */
        .contact-card {
            max-width: 500px;
            margin: 0 auto;
            background: var(--card-bg);
            padding: 3rem;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            text-align: center;
        }

        .contact-card p {
            color: var(--text);
            font-size: 1.1rem;
            margin-bottom: 1rem;
        }

        .email-link {
            display: inline-block;
            color: var(--secondary);
            font-size: 1.3rem;
            font-weight: 600;
            text-decoration: none;
            margin: 1rem 0;
            transition: color 0.3s;
        }

        .email-link:hover {
            color: var(--primary);
        }

        .copy-btn {
            background: var(--secondary);
            color: white;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s;
            margin-top: 1rem;
        }

        .copy-btn:hover {
            background: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        }

        .copy-message {
            color: #48bb78;
            margin-top: 1rem;
            font-size: 0.9rem;
            min-height: 20px;
        }

        /* Footer */
        footer {
            background: var(--primary);
            color: white;
            text-align: center;
            padding: 2rem;
            margin-top: 3rem;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.5rem;
            }

            .nav-links {
                gap: 1rem;
                font-size: 0.9rem;
            }

            .projects-container {
                grid-template-columns: 1fr;
            }

            section {
                padding: 3rem 1.5rem;
            }
        }