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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 90px;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.6;
    color: #263238;
    background-color: #f5f7fa;
}

/* Navbar */
header {
    background-color: #ffffff;
    border-bottom: 1px solid #e3e8ef;
    position: sticky;
    top: 0;
    z-index: 100;
}

header nav {
    max-width: 1100px;
    margin: 0 auto;
    min-height: 70px;
    padding: 0 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

header nav > p {
    font-size: 1.25rem;
    font-weight: 700;
    color: #2563eb;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 28px;
}

nav a {
    color: #52606d;
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 600;
    transition: color 0.2s ease;
}

nav a:hover {
    color: #2563eb;
}

/* Area utama */
main {
    max-width: 1100px;
    margin: 0 auto;
    padding: 50px 30px;
}

section {
    background-color: #ffffff;
    border: 1px solid #e5eaf0;
    border-radius: 16px;
    padding: 35px;
    margin-bottom: 30px;
    box-shadow: 0 6px 20px rgba(30, 41, 59, 0.06);
}

section h2 {
    margin-bottom: 8px;
    font-size: 1.7rem;
    color: #1f2937;
}

/* Tentang Saya */
#tentang-saya {
    padding: 40px;
}

.profil {
    display: flex;
    align-items: center;
    gap: 45px;
}

.profil img {
    width: 220px;
    height: 220px;
    object-fit: cover;
    border-radius: 24px;
    border: 4px solid #dbeafe;
    flex-shrink: 0;
}

.profil-info {
    flex: 1;
}

.profil-info h1 {
    margin-bottom: 14px;
    font-size: 2.2rem;
    line-height: 1.2;
    color: #111827;
}

.profil-info p {
    color: #667085;
    max-width: 650px;
}

.linkedin-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    padding: 10px 16px;
    margin-top: 16px;
    border: 1px solid #dbe2ea;
    border-radius: 10px;
    background-color: #ffffff;
    color: #2563eb;
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 600;
    transition: all 0.2s ease;
}

.linkedin-link svg {
    width: 24px;
    height: 24px;
}

.linkedin-link .linkedin-bg {
    fill: #2563eb;
}

.linkedin-link .linkedin-icon {
    fill: #ffffff;
}

.linkedin-link:hover {
    background-color: #2563eb;
    border-color: #2563eb;
    color: #ffffff;
    transform: translateY(-2px);
}

.linkedin-link:hover .linkedin-bg {
    fill: #ffffff;
}

.linkedin-link:hover .linkedin-icon {
    fill: #2563eb;
}

/* Biodata */
.biodata-list {
    margin-top: 22px;
    overflow: hidden;
    border: 1px solid #e1e7ef;
    border-radius: 12px;
    background-color: #f8fafc;
}

.biodata-list p {
    min-height: 48px;
    padding: 10px 20px;
    display: grid;
    grid-template-columns: 160px 1fr;
    align-items: center;
    border-bottom: 1px solid #e1e7ef;
    color: #667085;
}

.biodata-list p:last-child {
    border-bottom: none;
}

.biodata-list p strong {
    color: #1f2937;
    font-weight: 700;
}

/* Pendidikan */
.pendidikan-list {
    margin-top: 22px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.pendidikan-list article {
    padding: 24px;
    border: 1px solid #e1e7ef;
    border-radius: 12px;
    background-color: #f8fafc;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.pendidikan-list article:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 18px rgba(30, 41, 59, 0.08);
}

.pendidikan-list h3 {
    margin-bottom: 8px;
    color: #2563eb;
    font-size: 1.05rem;
}

.pendidikan-list p {
    color: #667085;
}

/* Tabel mata kuliah */
#mata-kuliah {
    overflow-x: auto;
}

#mata-kuliah table {
    width: 100%;
    margin-top: 22px;
    border-collapse: collapse;
}

#mata-kuliah th {
    padding: 15px 18px;
    text-align: left;
    background-color: #eff6ff;
    color: #1e3a8a;
    font-size: 0.95rem;
}

#mata-kuliah th:first-child,
#mata-kuliah th:last-child,
#mata-kuliah td:first-child,
#mata-kuliah td:last-child {
    text-align: center;
}

#mata-kuliah td {
    padding: 15px 18px;
    border-bottom: 1px solid #e5eaf0;
    color: #52606d;
}

#mata-kuliah tbody tr:last-child td {
    border-bottom: none;
}

#mata-kuliah tbody tr:hover {
    background-color: #f8fafc;
}

/* Footer */
footer {
    padding: 28px 20px;
    text-align: center;
    color: #7b8794;
    font-size: 0.9rem;
}

/* Tablet */
@media (max-width: 768px) {
    header nav {
        padding: 0 20px;
    }

    nav ul {
        gap: 15px;
    }

    nav a {
        font-size: 0.85rem;
    }

    main {
        padding: 30px 20px;
    }

    section,
    #tentang-saya {
        padding: 28px;
    }

    .profil {
        gap: 28px;
    }

    .profil img {
        width: 180px;
        height: 180px;
    }

    .profil-info h1 {
        font-size: 1.8rem;
    }
}

/* HP */
@media (max-width: 600px) {
    html {
    scroll-padding-top: 120px;
    }
    
    header nav {
        flex-direction: column;
        gap: 12px;
        padding: 18px 15px;
    }

    nav ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px 18px;
    }

    main {
        padding: 20px 15px;
    }

    section,
    #tentang-saya {
        padding: 22px;
        border-radius: 12px;
    }

    .profil {
        flex-direction: column;
        text-align: center;
    }

    .profil img {
        width: 170px;
        height: 170px;
    }

    .profil-info h1 {
        font-size: 1.65rem;
    }

    .profil-info p {
        text-align: left;
    }

    .pendidikan-list {
        grid-template-columns: 1fr;
    }

    .biodata-list p {
        grid-template-columns: 90px 1fr;
        padding: 10px 14px;
        font-size: 0.9rem;
    }

    #mata-kuliah {
        overflow-x: auto;
    }

    #mata-kuliah table {
        min-width: 650px;
    }
}