body {
    font-family: 'Segoe UI', Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #34e5f9, #3b54de);
    color: #333;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.navbar {
    background-color: rgba(255, 255, 255, 0.95);
    padding: 10px 20px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.nav-link {
    border-radius: 5px;
    color: #3b54de;
    font-weight: 400;
    text-decoration: none;
    padding: 5px 12px;
}

.nav-link.active {
    background-color: #3b54de;
    color: white;
}

.nav-link.disabled {
    color: gray;
    pointer-events: none;
}

header {
    text-align: center;
    padding: 20px 20px 10px;
    color: white;
}

header h1 {
    margin: 0;
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 5px;
}

header .author {
    margin: 0 0 10px;
    font-size: 1.2rem;
    opacity: 0.9;
}

.photo-box {
    margin: 25px auto 15px;
}

.profile-photo {
    width: 280px;
    height: auto;
    object-fit: cover;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

header .subtitle {
    margin: 10px 0 5px;
    font-size: 1.1rem;
    font-weight: 300;
    opacity: 0.85;
}

.projects-title {
    text-align: center;
    margin: 10px 0 25px;
    font-size: 1.8rem;
    font-weight: 600;
    color: #fff;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.4);
}

.project-btn {
    display: block;
    text-align: center;
    padding: 15px 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.15);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 400;
    color: #000;
    line-height: 1.5;
}

.project-btn:hover {
    text-decoration: none;
    color: #000;
    background: #f8f9fa;
}

.project-btn span {
    font-weight: normal;
    font-size: 1.1rem;
}

footer {
    text-align: center;
    padding: 10px;
    background: rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    color: #eee;
    margin-top: auto;
}