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

        :root {
            --bg-color: #0a0f1c;
            --card-bg: #1a1f2e;
            --text-primary: #f2f5ff;
            --text-secondary: #8892b0;
            --button-bg: #0e1117;
            --button-hover: #1c222e;
            --toggle-bg: #0e1117;
            --toggle-slider: #64ffda;
        }

        [data-theme="light"] {
            --bg-color: #f8fafc;
            --card-bg: #ffffff;
            --text-primary: #1a202c;
            --text-secondary: #4a5568;
            --button-bg: #f7fafc;
            --button-hover: #edf2f7;
            --toggle-bg: #e2e8f0;
            --toggle-slider: #3182ce;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            background-color: var(--bg-color);
            color: var(--text-primary);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
        }

        .profile-card {
            text-align: center;
            max-width: 500px;
            width: 90%;
            transition: all 0.3s ease;
        }

        .profile-header {
            display: flex;
            align-items: center;
            gap: 24px;
            margin-bottom: 24px;
            text-align: left;
        }

        .profile-image {
            width: 100px;
            height: 100px;
            border-radius: 50%;
            overflow: hidden;
            border: 3px solid var(--button-hover);
            flex-shrink: 0;
        }

        .profile-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            filter: sepia(100%) grayscale(60%) hue-rotate(200deg) saturate(100%) contrast(120%) brightness(80%);
        }

        .profile-info {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .name {
            font-size: 24px;
            font-weight: 600;
            line-height: 1.2;
            margin: 0;
        }

        .email-field {
            background: var(--button-bg);
            border: 1px solid var(--button-hover);
            border-radius: 8px;
            padding: 6px 10px;
            font-size: 14px;
            color: var(--text-primary);
            font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
            width: fit-content;
        }

        .location {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-primary);
            font-size: 14px;
            margin: 0;
        }

        .social-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 8px;
            justify-content: flex-start;
            margin-left: 0;
            list-style: none;
            padding: 0;
        }

        .social-list:last-child {
            margin-bottom: 0;
        }

        .social-btn {
            background: var(--button-bg);
            border: 1px solid var(--button-hover);
            border-radius: 20px;
            padding: 8px 14px;
            color: var(--text-primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .social-btn:hover {
            background: var(--button-hover);
            border-color: rgba(255, 255, 255, 0.2);
            transform: translateY(-2px);
        }

        .theme-toggle {
            position: fixed;
            bottom: 32px;
            left: 32px;
            z-index: 1000;
        }

        .toggle-button {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--button-bg);
            border: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
            color: var(--text-primary);
        }

        .toggle-button:hover {
            background: var(--button-hover);
            transform: translateY(-2px);
        }

        .theme-icon {
            transition: opacity 0.3s ease;
        }

        .sun-icon {
            opacity: 0;
            position: absolute;
        }

        .moon-icon {
            opacity: 1;
            position: absolute;
        }

        [data-theme="light"] .sun-icon {
            opacity: 1;
        }

        [data-theme="light"] .moon-icon {
            opacity: 0;
        }

        @media (max-width: 390px) {
            .profile-header {
                flex-direction: column;
                align-items: center;
                text-align: center;
                gap: 16px;
            }
            
            .profile-info {
                align-items: center;
            }
            
            .social-list {
                margin-left: 0;
                justify-content: center;
            }
        }

        @media (min-width: 391px) and (max-width: 768px) {
            .profile-header {
                gap: 12px;
            }
            
            .profile-image {
                width: 70px;
                height: 70px;
            }
            
            .name {
                font-size: 22px;
            }
            
            .email-field {
                font-size: 12px;
                padding: 4px 8px;
            }
            
            .location {
                font-size: 13px;
            }
            
            .location svg {
                width: 16px;
                height: 16px;
            }
            
            .profile-info {
                gap: 4px;
            }
        }