/* ============================================
   CSS Variables & Root Styles
   ============================================ */
:root {
    --navy-blue: #1E3A8A;
    --copper: #B87333;
    --white: #FFFFFF;
    --light-gray: #F8F9FA;
    --medium-gray: #6B7280;
    --dark-gray: #333333;
    --text-color: #333333;
    --border-color: #E5E7EB;

    --font-heading: 'Georgia', serif;
    --font-body: 'Roboto', sans-serif;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;

    --border-radius: 8px;
    --box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --box-shadow-lg: 0 4px 6px rgba(0, 0, 0, 0.1);

    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--text-color);
    background-color: var(--white);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
    color: var(--navy-blue);
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

h5 {
    font-size: 1.125rem;
}

h6 {
    font-size: 1rem;
}

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

a {
    color: var(--navy-blue);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--copper);
    text-decoration: underline;
}

strong {
    font-weight: 700;
    color: var(--navy-blue);
}

code {
    background-color: var(--light-gray);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
}

pre {
    background-color: var(--light-gray);
    padding: var(--spacing-md);
    border-left: 4px solid var(--copper);
    border-radius: var(--border-radius);
    overflow-x: auto;
    margin-bottom: var(--spacing-md);
}

pre code {
    background-color: transparent;
    padding: 0;
}

/* ============================================
   Container & Layout
   ============================================ */
.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.main-content {
    padding: var(--spacing-2xl) 0;
}

/* ============================================
   Navigation
   ============================================ */
.navbar {
    background-color: var(--navy-blue);
    color: var(--white);
    padding: var(--spacing-md) 0;
    box-shadow: var(--box-shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand a {
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-heading);
}

.navbar-brand a:hover {
    color: var(--copper);
}

.navbar-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--white);
    font-weight: 500;
    transition: var(--transition);
}

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

/* ============================================
   Hero Section (Home Page)
   ============================================ */
.hero {
    background: linear-gradient(135deg, var(--navy-blue) 0%, #0f2f5a 100%);
    color: var(--white);
    padding: var(--spacing-2xl) 0;
    margin-bottom: var(--spacing-2xl);
}

.hero-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero-image {
    text-align: center;
}

.profile-photo {
    width: 340px;
    height: 340px;
    border-radius: 8px;
    object-fit: cover;
    border: 4px solid var(--copper);
    box-shadow: var(--box-shadow-lg);
}

.hero-text h1 {
    color: var(--copper);
    margin-bottom: var(--spacing-md);
}

.passion-statement {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--white);
}

.home-feature {
    padding: var(--spacing-xl) 0;
}

.page-hero {
    margin: var(--spacing-lg) 0 var(--spacing-2xl);
}

.image-hover-card {
    position: relative;
    display: block;
    width: 100%;
}

.image-hover-caption {
    position: absolute;
    inset: auto 12px 12px 12px;
    background: rgba(15, 47, 90, 0.92);
    color: var(--white);
    padding: 0.6rem 0.8rem;
    border-radius: 10px;
    font-size: 0.95rem;
    line-height: 1.4;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.25s ease, transform 0.25s ease;
    pointer-events: none;
}

.image-hover-card:hover .image-hover-caption {
    opacity: 1;
    transform: translateY(0);
}

.page-hero-image {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: var(--box-shadow-lg);
    border: 1.5px solid transparent;
    display: block;
    transition: border-color 0.2s ease, transform 0.2s ease;
}

.page-hero-image:hover {
    border-color: var(--copper);
    transform: translateY(-2px);
}

.project-hero-image {
    max-height: 320px;
    object-fit: cover;
    object-position: center 30%;
}

.about-photo-wrap {
    display: flex;
    justify-content: center;
    margin: var(--spacing-lg) 0 var(--spacing-2xl);
}

.about-photo-wrap.image-hover-card {
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.about-photo {
    width: 260px;
    height: 260px;
    border-radius: 50%;
    object-fit: cover;
    object-position: center 35%;
    border: 1.5px solid transparent;
    box-shadow: var(--box-shadow-lg);
    transition: border-color 0.2s ease, transform 0.2s ease;
}

.about-photo:hover {
    border-color: var(--copper);
    transform: translateY(-2px);
}

/* ============================================
   Posts Grid & Cards
   ============================================ */
.recent-posts {
    padding: var(--spacing-2xl) 0;
}

.recent-posts h2 {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.post-card {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    box-shadow: var(--box-shadow);
}

.post-card:hover {
    box-shadow: var(--box-shadow-lg);
    transform: translateY(-4px);
    border-color: var(--copper);
}

.post-card-header h3 {
    margin-bottom: var(--spacing-sm);
}

.post-card-header h3 a {
    color: var(--navy-blue);
}

.post-card-header h3 a:hover {
    color: var(--copper);
}

.post-date {
    color: var(--medium-gray);
    font-size: 0.9rem;
}

.post-card-body {
    flex: 1;
    margin-bottom: var(--spacing-md);
}

.post-card-body p {
    margin-bottom: 0;
}

.post-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-color);
    padding-top: var(--spacing-md);
}

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

.tag {
    background-color: var(--light-gray);
    color: var(--navy-blue);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 500;
}

.tag:hover {
    background-color: var(--navy-blue);
    color: var(--white);
    text-decoration: none;
}

.read-more {
    color: var(--copper);
    font-weight: 600;
    white-space: nowrap;
}

.read-more:hover {
    color: var(--navy-blue);
}

/* ============================================
   Posts List (Thoughts Page)
   ============================================ */
.posts-list {
    margin: var(--spacing-2xl) 0;
}

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

.post-item:hover {
    background-color: var(--light-gray);
    padding-left: var(--spacing-xl);
}

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

.post-item-header h2 {
    margin-bottom: var(--spacing-sm);
}

.post-item-header h2 a {
    color: var(--navy-blue);
}

.post-item-header h2 a:hover {
    color: var(--copper);
}

.post-excerpt {
    color: var(--medium-gray);
    margin-bottom: var(--spacing-md);
}

.post-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

/* ============================================
   Tag Filter Section
   ============================================ */
.tag-filter {
    margin: var(--spacing-2xl) 0;
    text-align: center;
}

.tag-filter h3 {
    margin-bottom: var(--spacing-md);
}

.tag-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.tag-filter-btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--light-gray);
    color: var(--navy-blue);
    border: 2px solid transparent;
    border-radius: 20px;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
}

.tag-filter-btn:hover {
    background-color: var(--navy-blue);
    color: var(--white);
    text-decoration: none;
}

.tag-filter-btn.active {
    background-color: var(--copper);
    color: var(--white);
    border-color: var(--copper);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
    font-family: var(--font-body);
}

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

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

.btn-secondary {
    background-color: var(--white);
    color: var(--navy-blue);
    border: 2px solid var(--navy-blue);
}

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

/* ============================================
   About & Experience Section
   ============================================ */
.about-page, .projects-page, .thoughts-page {
    padding: var(--spacing-xl) 0;
}

.about-page h1, .projects-page h1, .thoughts-page h1 {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--navy-blue);
}

.page-subtitle {
    text-align: center;
    color: var(--medium-gray);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-2xl);
}

.about-section {
    margin-bottom: var(--spacing-2xl);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.section-header h2 {
    margin: 0;
}

.resume-download {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.4rem 0.8rem;
    border: 2px solid var(--navy-blue);
    border-radius: 999px;
    color: var(--navy-blue);
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

.resume-download:hover {
    background-color: var(--navy-blue);
    color: var(--white);
    transform: translateY(-2px);
}

.about-content {
    background-color: var(--light-gray);
    padding: var(--spacing-lg);
    border-left: 4px solid var(--copper);
    border-radius: var(--border-radius);
}

.about-content p {
    margin-bottom: var(--spacing-md);
}

.about-content p:last-child {
    margin-bottom: 0;
}

/* ============================================
   Experience Timeline
   ============================================ */
.experience-timeline {
    display: grid;
    gap: var(--spacing-lg);
}

.experience-item {
    padding: var(--spacing-lg);
    border-left: 4px solid var(--copper);
    background-color: var(--light-gray);
    border-radius: var(--border-radius);
}

.experience-header h3 {
    margin-bottom: var(--spacing-xs);
}

.experience-meta {
    color: var(--copper);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.experience-description {
    color: var(--medium-gray);
    line-height: 1.6;
}

.experience-list {
    margin: 0;
    padding-left: 1.2rem;
    color: var(--medium-gray);
    line-height: 1.6;
}

.experience-list li + li {
    margin-top: var(--spacing-xs);
}

/* ============================================
   Skills Grid
   ============================================ */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.skill-category {
    padding: var(--spacing-lg);
    background-color: var(--light-gray);
    border-radius: var(--border-radius);
    border-top: 4px solid var(--copper);
}

.skill-category h3 {
    color: var(--navy-blue);
    margin-bottom: var(--spacing-md);
}

.skill-list {
    list-style: none;
}

.skill-list li {
    padding: var(--spacing-xs) 0;
    color: var(--medium-gray);
}

.skill-list li:before {
    content: "→ ";
    color: var(--copper);
    font-weight: 600;
    margin-right: var(--spacing-xs);
}

/* ============================================
   Projects Grid
   ============================================ */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-2xl) 0;
}

.project-card {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    box-shadow: var(--box-shadow);
}

.project-card:hover {
    box-shadow: var(--box-shadow-lg);
    transform: translateY(-4px);
    border-color: var(--copper);
}

.project-card-header h3 {
    color: var(--navy-blue);
    margin-bottom: 0;
}

.project-card-body {
    flex: 1;
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    margin: var(--spacing-md) 0;
}

.project-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.project-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    justify-content: flex-end;
}

.project-note {
    color: var(--medium-gray);
    font-weight: 600;
}

/* ============================================
   Post Page
   ============================================ */
.post-page {
    padding: var(--spacing-xl) 0;
}

.post-article {
    max-width: 900px;
    margin: 0 auto;
}

.post-header {
    margin-bottom: var(--spacing-2xl);
    border-bottom: 2px solid var(--copper);
    padding-bottom: var(--spacing-lg);
}

.post-header h1 {
    color: var(--navy-blue);
    margin-bottom: var(--spacing-md);
}

.post-header .post-meta {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    align-items: center;
}

.post-content {
    margin: var(--spacing-2xl) 0;
    line-height: 1.8;
}

.post-content h2 {
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-md);
}

.post-content h3 {
    margin-top: var(--spacing-lg);
}

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

.post-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    margin: var(--spacing-lg) 0;
}

.post-content ul, .post-content ol {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.post-content li {
    margin-bottom: var(--spacing-xs);
}

.post-footer {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.post-navigation {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
    text-align: center;
    background-color: var(--light-gray);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    margin-top: var(--spacing-2xl);
}

.cta-section h2 {
    color: var(--navy-blue);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-lg);
}

.projects-cta {
    text-align: center;
    margin: var(--spacing-2xl) 0;
}

.no-posts {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--medium-gray);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background-color: var(--navy-blue);
    color: var(--white);
    padding: var(--spacing-lg) 0;
    margin-top: auto;
    border-top: 2px solid var(--copper);
}

.footer-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.footer-content p {
    margin-bottom: 0;
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    color: var(--white);
    font-size: 1.2rem;
    transition: var(--transition);
}

.social-link:hover {
    color: var(--copper);
    text-decoration: none;
}

.social-link .icon {
    display: inline-block;
    font-weight: 600;
    width: 1em;
    height: 1em;
    vertical-align: -0.125em;
    fill: currentColor;
    stroke: currentColor;
}

/* ============================================
   Utility Classes
   ============================================ */
.posts-footer {
    text-align: center;
    margin-top: var(--spacing-xl);
}