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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'SF Pro Display', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    background: #FFFFFF;
    color: #000000;
    min-height: 100vh;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 32px;
    width: 100%;
    position: relative;
    border-bottom: 1px solid #e6e5e5;
    margin-bottom: 0;
}

.logo {
    font-size: 20px;
    font-weight: 600;
    color: #000000;
    letter-spacing: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'SF Pro Display', 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

.login-link {
    font-size: 16px;
    color: #FFFFFF;
    text-decoration: none;
    font-weight: 500;
    background-color: #000000;
    padding: 8px 16px;
    border-radius: 8px;
    transition: all 0.2s ease;
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'SF Pro Display', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    display: inline-block;
    line-height: 1.5;
}

.login-link:hover {
    background-color: #333333;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.login-link:active {
    transform: translateY(0);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
}

/* Container */
.container {
    max-width: 700px;
    margin: 0 auto;
    padding: 60px 32px;
    flex: 1;
}

/* Letter Section */
.letter-section {
    margin-bottom: 60px;
    padding: 40px;
    background: #f9f9f9;
    border-left: 4px solid #000000;
    border-radius: 8px;
}

.letter-text {
    font-size: 18px;
    line-height: 1.8;
    color: #222222;
    margin-bottom: 12px;
    font-style: italic;
}

.letter-signature {
    font-size: 18px;
    line-height: 1.8;
    color: #222222;
    margin-top: 20px;
    font-weight: 500;
}

/* Profile Section */
.profile-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 32px;
    padding: 40px 0;
}

.profile-image-container {
    width: 240px;
    height: 240px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid #000000;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    position: relative;
    background: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
}

.profile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
}

.profile-info {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.profile-name {
    font-size: 36px;
    font-weight: 600;
    color: #000000;
    margin: 0;
    letter-spacing: -0.5px;
}

.profile-title {
    font-size: 22px;
    font-weight: 400;
    color: #666666;
    margin: 0;
}

.profile-links {
    margin-top: 12px;
}

.linkedin-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #0077b5;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    padding: 10px 20px;
    border: 2px solid #0077b5;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.linkedin-link:hover {
    background-color: #0077b5;
    color: #FFFFFF;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 119, 181, 0.3);
}

.linkedin-link svg {
    width: 20px;
    height: 20px;
}

/* Footer */
.footer {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    padding: 30px 20px;
    margin-top: 60px;
    border-top: 1px solid #e6e5e5;
    flex-wrap: wrap;
}

.footer-link {
    color: #999;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s ease;
}

.footer-link:hover {
    color: #666;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header {
        padding: 16px 24px;
    }
    
    .logo {
        font-size: 18px;
    }
    
    .login-link {
        font-size: 15px;
        padding: 9px 18px;
    }
    
    .container {
        padding: 40px 24px;
    }
    
    .letter-section {
        padding: 30px 24px;
        margin-bottom: 40px;
    }
    
    .letter-text,
    .letter-signature {
        font-size: 16px;
    }
    
    .profile-image-container {
        width: 200px;
        height: 200px;
    }
    
    .profile-name {
        font-size: 32px;
    }
    
    .profile-title {
        font-size: 20px;
    }
    
    .footer {
        gap: 16px;
        padding: 24px 16px;
    }
    
    .footer-link {
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 12px 20px;
    }
    
    .logo {
        font-size: 16px;
    }
    
    .login-link {
        font-size: 14px;
        padding: 8px 16px;
    }
    
    .container {
        padding: 30px 20px;
    }
    
    .letter-section {
        padding: 24px 20px;
        margin-bottom: 30px;
    }
    
    .letter-text,
    .letter-signature {
        font-size: 15px;
    }
    
    .profile-image-container {
        width: 180px;
        height: 180px;
    }
    
    .profile-name {
        font-size: 28px;
    }
    
    .profile-title {
        font-size: 18px;
    }
    
    .footer {
        flex-direction: column;
        gap: 12px;
    }
}