body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    margin: 0;
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: linear-gradient(180deg, #f7efeb 0%, #f5e8e3 45%, #f9f3f0 100%);
    color: #5b4a43;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(12px);
    z-index: 1000;
    padding: 18px 24px;
    box-shadow: 0 12px 30px rgba(126, 90, 81, 0.12);
    border-bottom: 1px solid rgba(218, 184, 176, 0.7);
}

header nav ul {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 28px;
    list-style: none;
    margin: 0;
    padding: 0;
}

header nav a {
    text-decoration: none;
    color: #796157;
    font-weight: 600;
    letter-spacing: 0.02em;
    transition: color 0.25s ease, transform 0.25s ease;
}

header nav a:hover {
    color: #a1837a;
    transform: translateY(-1px);
}


footer {
    text-align: center;
    padding: 26px 20px;
    border-top: 1px solid rgba(221, 181, 171, 0.7);
    background: rgba(255, 255, 255, 0.82);
}

footer p {
    margin: 0;
    color: #6d574e;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 12px;
}

footer img {
    width: 40px;
    height: auto;
}

img {
    max-width: 100%;
    height: auto;
}

main {
    flex: 1;
    padding: 120px 24px 40px;
    max-width: 1080px;
    width: 100%;
    margin: 0 auto;
}

section {
    background: rgba(255, 255, 255, 0.82);
    border: 1px solid rgba(221, 181, 171, 0.55);
    border-radius: 24px;
    padding: 32px 34px;
    margin-bottom: 24px;
    box-shadow: 0 18px 40px rgba(135, 96, 89, 0.08);
}

section h2 {
    margin-top: 0;
    color: #7f5e53;
}

h1 {
    margin: 0 0 10px;
    font-size: 2.5rem;
    color: #4f3a32;
}

h2 {
    font-size: 1.75rem;
}

p,
li,
pre {
    line-height: 1.8;
    color: #5e4c43;
}

ul {
    padding-left: 20px;
}

li {
    margin-bottom: 10px;
}

a {
    color: #7a5f57;
}

a:hover {
    color: #a6837c;
}

pre,
code {
    background: #f6e8e4;
    border-radius: 16px;
    overflow-x: auto;
}

pre {
    margin: 18px 0;
}

.profile-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.profile-photo {
    width: 250px;
    height: 250px;
    object-fit: cover;
    border-radius: 50%;
    border: 6px solid rgba(221, 181, 171, 0.7);
    box-shadow: 0 16px 35px rgba(135, 96, 89, 0.12);
}



@media (max-width: 760px) {
    header nav ul {
        flex-wrap: wrap;
        gap: 16px;
    }

    main {
        padding: 140px 16px 24px;
    }

    section {
        padding: 24px 20px;
    }
}