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

:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f6f8fa;
    --bg-tertiary: #ffffff;
    --border-color: #d0d7de;
    --text-primary: #24292f;
    --text-secondary: #57606a;
    --text-link: #0969da;
    --text-link-hover: #0550ae;
    --accent-color: #1a7f37;
    --badge-bg: #f6f8fa;
    --badge-border: #d0d7de;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    font-size: 14px;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 32px 16px;
}

/* Breadcrumb Navigation */
.breadcrumb {
    margin-bottom: 24px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.breadcrumb a {
    color: var(--text-link);
    text-decoration: none;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

/* Page Header */
.page-header {
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.page-header h1 {
    font-size: 32px;
    font-weight: 600;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.page-header .page-description {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Profile Header */
.profile-header {
    display: flex;
    gap: 24px;
    margin-bottom: 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--border-color);
}

.profile-avatar img {
    width: 260px;
    height: 260px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
}

.profile-info {
    flex: 1;
    padding-top: 8px;
}

.profile-info h1 {
    font-size: 26px;
    font-weight: 600;
    margin-bottom: 4px;
}

.username {
    font-size: 20px;
    color: var(--text-secondary);
    font-weight: 300;
    margin-bottom: 16px;
}

.bio {
    font-size: 16px;
    margin-bottom: 16px;
    line-height: 1.6;
}

.profile-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 14px;
    color: var(--text-secondary);
}

.profile-meta .location {
    display: flex;
    align-items: center;
    gap: 6px;
}

.profile-meta .link {
    color: var(--text-link);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: color 0.2s;
}

.profile-meta .link:hover {
    color: var(--text-link-hover);
    text-decoration: underline;
}

/* Content Grid */
.content-grid {
    display: block;
}

/* Main Content */
.main-content {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.main-content section {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 24px;
}

.main-content h2 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.main-content h2 i {
    color: var(--text-secondary);
}

/* Experience */
.experience-item {
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.experience-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.experience-item h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 6px;
}

.experience-item h3 a {
    color: var(--text-link);
    text-decoration: none;
}

.experience-item h3 a:hover {
    color: var(--text-link-hover);
    text-decoration: underline;
}

.experience-item .duration {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.experience-item .description {
    font-size: 14px;
    line-height: 1.6;
}

.experience-item .description a {
    color: var(--text-link);
    text-decoration: none;
}

.experience-item .description a:hover {
    text-decoration: underline;
}

/* Skills */
.skill-category {
    margin-bottom: 24px;
}

.skill-category:last-child {
    margin-bottom: 0;
}

.skill-category h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-secondary);
}

.skill-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.badge {
    display: inline-block;
    padding: 6px 12px;
    background-color: var(--badge-bg);
    border: 1px solid var(--badge-border);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    transition: all 0.2s;
}

.badge:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--text-secondary);
}


/* Footer */
footer {
    text-align: center;
    padding: 32px 16px;
    color: var(--text-secondary);
    font-size: 12px;
    border-top: 1px solid var(--border-color);
    margin-top: 48px;
}

footer a {
    color: var(--text-link);
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

/* Data Visualizations */
.visualizations {
    background-color: transparent;
    border: none;
    padding: 0;
}

.viz-item {
    margin-bottom: 48px;
    padding: 24px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
}

.viz-item:last-child {
    margin-bottom: 0;
}

.viz-item h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
}

.viz-item h3 a {
    color: var(--text-link);
    text-decoration: none;
}

.viz-item h3 a:hover {
    color: var(--text-link-hover);
    text-decoration: underline;
}

.tableau-container {
    position: relative;
    width: 100%;
    padding-bottom: 75%; /* 4:3 aspect ratio */
    overflow: hidden;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
}

.tableau-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* Responsive Design */
@media (max-width: 768px) {
    .profile-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .profile-avatar img {
        width: 200px;
        height: 200px;
    }

    .profile-meta {
        justify-content: center;
    }

    .container {
        padding: 16px;
    }
}

@media (max-width: 480px) {
    .profile-avatar img {
        width: 150px;
        height: 150px;
    }

    .profile-info h1 {
        font-size: 22px;
    }

    .username {
        font-size: 18px;
    }

    .main-content section {
        padding: 16px;
    }
}