/* Reset & Cơ bản */
* { box-sizing: border-box; }
body {
    font-family: 'Source Sans Pro', sans-serif;
    color: #444;
    line-height: 1.6;
    margin: 0;
    background-color: #fff;
}

/* Container chính */
.main-wrapper {
    max-width: 1000px;
    margin: 60px auto;
    padding: 0 40px;
}

.container {
    display: flex;
    gap: 80px;
}

/* Sidebar (Cột trái) */
.sidebar {
    flex: 1;
    text-align: left;
    position: sticky;
    top: 60px;
    height: fit-content;
}

.name {
    color: #2e7bb6;
    font-size: 32px;
    margin-top: 0;
    text-align: center;
}

.title {
    color: #666;
    font-size: 16px;
    text-align: center;
    margin: -8px auto 20px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.profile-pic {
    width: 230px;
    height: 230px;
    margin: 0 auto 25px;
}

.profile-pic img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 1px solid #eee;
}

.social-links {
    text-align: center;
    margin-bottom: 30px;
    font-size: 14px;
    color: #2e7bb6;
}

.social-links a {
    text-decoration: none;
    color: inherit;
    font-weight: 600;
}

.bio p {
    font-size: 15px;
    margin-bottom: 15px;
    color: #555;
}

/* Content (Cột phải) */
.content { flex: 2; }
.section-title { font-size: 32px; color: #333; margin: 0; }
hr { border: 0; border-top: 1px solid #eeeeee; margin: 10px 0 40px 0; }
h3 { font-size: 24px; color: #333; margin-bottom: 20px; border-bottom: 1px solid #f9f9f9; padding-bottom: 5px; }
h4 { font-size: 19px; color: #222; margin-bottom: 10px; }

.project-item { margin-bottom: 50px; }
.project-item p { font-size: 16px; margin-bottom: 15px; }

/* Danh sách chi tiết */
.project-details {
    font-size: 14.5px;
    padding-left: 20px;
    color: #666;
}
.project-details li { margin-bottom: 8px; }

/* Badge GitHub */
.badge-container { margin: 15px 0; }
.github-badge {
    background-color: #4183c4;
    color: white !important;
    padding: 5px 12px;
    border-radius: 4px;
    text-decoration: none;
    font-size: 13px;
    font-weight: bold;
    display: inline-block;
    transition: background 0.3s;
}
.github-badge:hover { background-color: #2e6da4; }

/* Hình ảnh dự án */
.project-image { margin: 25px 0; width: 100%; }
.project-image img {
    width: 100%;
    height: auto;
    border: 1px solid #eee;
    border-radius: 4px;
}
.image-caption {
    font-size: 13px;
    color: #888;
    text-align: center;
    margin-top: 10px;
}

/* Footer */
footer {
    margin-top: 50px;
    padding: 20px 0;
    border-top: 1px solid #eee;
    text-align: center;
    font-size: 13px;
    color: #aaa;
}

/* Responsive cho Mobile */
@media (max-width: 850px) {
    .container { flex-direction: column; gap: 40px; }
    .sidebar { position: static; }
    .main-wrapper { margin: 20px auto; padding: 0 20px; }
}