:root {
    --bg: #1d1216;
    --surface: #2b1c22;
    --surface-light: #3a252d;
    --text: #fff7f3;
    --muted: #d8c1ba;
    --accent: #ff7a66;
    --accent-light: #ffc2b6;
    --border: rgba(255, 122, 102, 0.35);
    --shadow: 0 18px 45px rgba(0, 0, 0, 0.28);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;

    display: flex;
    justify-content: center;
    align-items: center;

    background: radial-gradient(circle at top left,
            #4a2425 0,
            var(--bg) 42%);

    font-family: Arial, Helvetica, sans-serif;
    color: var(--text);
}

.card {
    width: min(400px, 90%);
    padding: 2rem;

    text-align: center;

    background: linear-gradient(
        145deg,
        var(--surface),
        var(--surface-light)
    );

    border: 1px solid var(--border);
    border-radius: 24px;

    box-shadow: var(--shadow);
}
.profile-image {
    width: 160px;
    height: 160px;

    object-fit: cover;

    border-radius: 50%;
    border: 4px solid var(--accent);

    margin-bottom: 1.5rem;
}
#card-title {
    margin-bottom: 0.5rem;

    color: var(--accent);

    font-size: 2rem;
}
.specialization {
    color: var(--muted);
    margin-bottom: 1.5rem;
}

p {
    margin: 0.8rem 0;
}
a {
    color: var(--accent-light);
    text-decoration: none;
    font-weight: bold;

    transition: 0.2s ease;
}
.main-nav {
    position: sticky;
    top: 0;
    z-index: 5;
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    width: min(1100px, 92%);
    margin: 0 auto 2rem;
    padding: 0.8rem;
    background: rgba(43, 28, 34, 0.92);
    border: 1px solid var(--border);
    border-radius: 999px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(12px);
}

.main-nav a,
a.button-link,
button {
    border-radius: 999px;
    transition: transform 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

.main-nav a {
    color: var(--text);
    padding: 0.65rem 1rem;
    text-decoration: none;
    font-weight: 700;
}

.main-nav a:hover,
.main-nav a:focus,
.main-nav a[aria-current="page"] {
    background: var(--accent);
    color: #1d1216;
}
a:hover,
a:focus {
    color: white;
}
@media (max-width: 500px) {
    .card {
        padding: 1.5rem;
    }

    #card-title {
        font-size: 1.6rem;
    }

    .profile-image {
        width: 130px;
        height: 130px;
    }

}