:root {
    --primary-color: #2c3e50;
    --secondary-color: #34495e;
    --accent-color: #e67e22;
    --text-color: #333;
    --bg-color: #f4f4f4;
    --card-bg: #ffffff;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header {
    background-color: var(--primary-color);
    color: #fff;
    text-align: center;
    padding: 3rem 1rem;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.profile-img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid #fff;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    margin-bottom: 1rem;
    transition: transform 0.3s ease;
}

.profile-img:hover {
    transform: scale(1.05);
}

h1 {
    margin: 0.5rem 0;
    font-size: 2.5rem;
    font-weight: 700;
}

.subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
    font-weight: 300;
}

.container {
    flex: 1;
    max-width: 800px;
    margin: 2rem auto;
    padding: 0 20px;
    width: 100%;
    box-sizing: border-box;
}

.card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
    margin-bottom: 2rem;
}

h2 {
    color: var(--primary-color);
    border-bottom: 2px solid var(--accent-color);
    padding-bottom: 0.5rem;
    margin-top: 1.5rem;
}

p {
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
}

.links {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.btn {
    text-decoration: none;
    color: #fff;
    background-color: var(--secondary-color);
    padding: 12px 25px;
    border-radius: 30px;
    transition: all 0.3s ease;
    font-weight: 600;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.btn:hover {
    background-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}

footer {
    background-color: var(--primary-color);
    color: #fff;
    text-align: center;
    padding: 1.5rem 0;
    margin-top: auto;
    font-size: 0.9rem;
}

/* Responsive adjustments */
@media (max-width: 600px) {
    h1 {
        font-size: 2rem;
    }
    .profile-img {
        width: 120px;
        height: 120px;
    }
}