/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #0073b1;
    --text-primary: #1d1d1d;
    --text-secondary: #666;
    --text-light: #999;
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --border-color: #e0e0e0;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.12);
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-lg);
}

/* Site Nav (for blog-style pages) */
.site-nav {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: var(--spacing-lg);
}

.site-title {
    font-size: 1.75rem;
    font-weight: 600;
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.95rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-link.active {
    color: var(--primary-color);
    font-weight: 600;
}

/* Header Styles */
.header {
    padding-top: var(--spacing-xl) 0;
}

.profile-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.profile-image-container {
    flex-shrink: 0;
}

.profile-image {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border-color);
}

.profile-info {
    flex: 1;
}

.name {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.title {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    font-weight: 400;
}

.location {
    font-size: 0.95rem;
    color: var(--text-light);
}

.header-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    display: inline-block;
    border: none;
    cursor: pointer;
    font-size: 0.95rem;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: #005885;
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 1.5px solid var(--primary-color);
}

.btn-secondary:hover {
    background-color: var(--bg-secondary);
    transform: translateY(-2px);
}

/* Card Styles */
.card {
    padding: 0;
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-xs);
    border-bottom: 1px solid var(--border-color);
}

/* About Section */
.about-text {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 1rem;
}

.about-section .about-text:not(:last-child) {
    margin-bottom: var(--spacing-sm);
}

/* Experience Section */
.experience-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.experience-item {
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

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

.experience-header {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.job-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.company {
    font-size: 1rem;
    color: var(--primary-color);
    font-weight: 500;
}

.experience-meta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    font-size: 0.9rem;
    color: var(--text-light);
}

.duration,
.location {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.job-description {
    list-style: none;
    padding-left: 0;
    margin-top: var(--spacing-sm);
}

.job-description li {
    padding: var(--spacing-xs) 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-secondary);
    line-height: 1.7;
}

.job-description li::before {
    content: "▸";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* Education Section */
.education-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.education-item {
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

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

.education-header {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.degree {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.school {
    font-size: 1rem;
    color: var(--primary-color);
    font-weight: 500;
}

.education-meta {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.9rem;
    color: var(--text-light);
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.skill-category {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.skill-category-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.skill-tag {
    padding: 0.5rem 1rem;
    background-color: var(--bg-secondary);
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition);
}

.skill-tag:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* Projects Section */
.projects-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.project-item {
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

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

.project-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.project-description {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

.project-links {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.project-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
    padding: 0.25rem 0;
    border-bottom: 1px solid transparent;
}

.project-link:hover {
    border-bottom-color: var(--primary-color);
}

/* Contact Section */
.contact-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.contact-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition);
    font-weight: 500;
}

.contact-link:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.contact-icon {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

/* Footer */
.footer {
    text-align: center;
    padding: var(--spacing-lg);
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Blog / Writing page */
.blog-header {
    margin-bottom: var(--spacing-xl);
}

.blog-subtitle {
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
}

.post-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.post-item {
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.post-item:last-child {
    border-bottom: none;
}

.post-title {
    font-size: 1.35rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.post-title a {
    color: var(--text-primary);
    text-decoration: none;
}

.post-title a:hover {
    text-decoration: underline;
}

.post-meta {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-sm);
}

.post-excerpt {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.pagination {
    display: flex;
    justify-content: space-between;
    margin-top: var(--spacing-xl);
    font-size: 0.9rem;
}

.pagination a {
    color: var(--primary-color);
    text-decoration: none;
}

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

/* Individual Post Page Styles */
.post-content {
    max-width: 700px;
    margin: 0 auto;
}

.post-article {
    margin-bottom: var(--spacing-xl);
}

.post-header {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.post-title-main {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.post-meta-main {
    font-size: 0.9rem;
    color: var(--text-light);
}

.post-body {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 1.05rem;
}

.post-body p {
    margin-bottom: var(--spacing-md);
}

.post-body h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.post-body h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.post-body ul,
.post-body ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
    color: var(--text-secondary);
}

.post-body li {
    margin-bottom: var(--spacing-xs);
    line-height: 1.7;
}

.post-body a {
    color: var(--primary-color);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}

.post-body a:hover {
    border-bottom-color: var(--primary-color);
}

.post-body strong {
    color: var(--text-primary);
    font-weight: 600;
}

.post-body code {
    background-color: var(--bg-secondary);
    padding: 0.2rem 0.4rem;
    border-radius: 3px;
    font-family: 'Monaco', 'Menlo', 'Courier New', monospace;
    font-size: 0.9em;
}

.post-body pre {
    background-color: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    overflow-x: auto;
    margin-bottom: var(--spacing-md);
}

.post-body pre code {
    background: none;
    padding: 0;
}

.post-body blockquote,
.post-blockquote {
    border-left: 4px solid var(--primary-color);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
    color: var(--text-secondary);
    font-style: italic;
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
}

.post-body hr,
.post-divider {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: var(--spacing-xl) 0;
}

.post-figure {
    margin: var(--spacing-lg) 0;
}

.post-figure img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-xs);
}

.post-figure figcaption {
    font-size: 0.85rem;
    color: var(--text-light);
    text-align: center;
    font-style: italic;
    margin-top: var(--spacing-xs);
}

.post-footer {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.post-nav {
    display: flex;
    justify-content: flex-start;
}

.post-nav-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.post-nav-link:hover {
    text-decoration: underline;
}

.site-title-link {
    color: var(--text-primary);
    text-decoration: none;
}

.site-title-link:hover {
    color: var(--primary-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: var(--spacing-sm);
    }

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

    .profile-image {
        width: 120px;
        height: 120px;
    }

    .name {
        font-size: 1.75rem;
    }

    .header-actions {
        justify-content: center;
    }


    .skills-grid {
        grid-template-columns: 1fr;
    }

    .experience-meta,
    .education-meta {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
}

@media (max-width: 480px) {
    .name {
        font-size: 1.5rem;
    }

    .title {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 1.25rem;
    }

    .btn {
        width: 100%;
        text-align: center;
    }
}