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

body {
    font-family: 'Inter', sans-serif;
    margin: 0;
    padding: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    color: #333;
    line-height: 1.6;
}

nav {
    width: 100%;
    max-width: 450px;
    margin-bottom: 20px;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 20px;
    padding: 10px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

nav a {
    text-decoration: none;
    color: #667eea;
    font-weight: 500;
    transition: color 0.3s;
}

nav a:hover {
    color: #764ba2;
}

article[data-testid="test-profile-card"] {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    padding: 30px;
    max-width: 450px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    gap: 20px;
}

article[data-testid="test-profile-card"]:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

header {
    text-align: center;
    width: 100%;
}

h2[data-testid="test-user-name"] {
    margin: 0;
    font-size: 2.2em;
    font-weight: 700;
    color: #2d3748;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

figure {
    margin: 0;
}

img[data-testid="test-user-avatar"] {
    border-radius: 50%;
    width: 120px;
    height: 120px;
    object-fit: cover;
    object-position: center 10%;
    border: 3px solid #667eea;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

p[data-testid="test-user-bio"] {
    text-align: center;
    word-wrap: break-word;
    font-size: 1.1em;
    line-height: 1.7;
    color: #4a5568;
}

p {
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
    color: #718096;
    text-align: center;
}

nav[data-testid="test-user-social-links"] {
    width: 100%;
}

nav[data-testid="test-user-social-links"] ul {
    list-style: none;
    padding: 0;
    display: flex;
    justify-content: center;
    gap: 15px;
}

nav[data-testid="test-user-social-links"] a {
    text-decoration: none;
    color: #667eea;
    padding: 8px 16px;
    border: 2px solid #667eea;
    border-radius: 25px;
    transition: all 0.3s ease;
    font-weight: 500;
}

nav[data-testid="test-user-social-links"] a:hover, nav[data-testid="test-user-social-links"] a:focus {
    background: #667eea;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
    outline: 2px solid #4c51bf;
}

section {
    width: 100%;
}

section h3 {
    margin-top: 0;
    font-size: 1.3em;
    font-weight: 600;
    color: #2d3748;
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 8px;
    margin-bottom: 15px;
}

ul[data-testid="test-user-hobbies"], ul[data-testid="test-user-dislikes"] {
    list-style: none;
    padding-left: 0;
}

ul[data-testid="test-user-hobbies"] li::before {
    content: "📖";
    margin-right: 10px;
}

ul[data-testid="test-user-dislikes"] li::before {
    content: "🚫";
    margin-right: 10px;
}

li {
    word-wrap: break-word;
    margin-bottom: 8px;
    padding-left: 25px;
    color: #4a5568;
    transition: color 0.3s;
}

li:hover {
    color: #667eea;
}

@media (min-width: 480px) {
    article[data-testid="test-profile-card"] {
        max-width: 500px;
        padding: 35px;
    }

    img[data-testid="test-user-avatar"] {
        width: 130px;
        height: 130px;
    }

    h2[data-testid="test-user-name"] {
        font-size: 2.4em;
    }
}

@media (min-width: 768px) {
    article[data-testid="test-profile-card"] {
        max-width: 500px;
        padding: 40px;
    }

    img[data-testid="test-user-avatar"] {
        width: 140px;
        height: 140px;
    }

    h2[data-testid="test-user-name"] {
        font-size: 2.6em;
    }
}