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

:root {
  --primary-color: #2c3e50;
  --secondary-color: #34495e;
  --accent-color: #3498db;
  --text-color: #333;
  --text-light: #666;
  --bg-color: #ffffff;
  --bg-light: #f8f9fa;
  --border-color: #e1e4e8;
  --max-width: 1100px;
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
  :root {
    --primary-color: #f1f5f9;
    --secondary-color: #e2e8f0;
    --accent-color: #60a5fa;
    --text-color: #f1f5f9;
    --text-light: #cbd5e1;
    --bg-color: #0f172a;
    --bg-light: #1e293b;
    --border-color: #334155;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.3);
  }

  header,
  footer {
    background-color: #cbd5e1;
    color: #0f172a;
  }

  header .site-title {
    color: #0f172a;
  }

  header .site-tagline {
    color: #334155;
  }

  header nav a {
    color: #0f172a;
  }

  header nav a:hover {
    color: var(--accent-color);
  }

  footer p {
    color: #0f172a;
  }

  footer a {
    color: #1d4ed8;
  }

  footer a:hover {
    color: var(--accent-color);
  }

  .hamburger,
  .hamburger::before,
  .hamburger::after {
    background: #0f172a;
  }

  .portfolio-card,
  .highlight-card {
    background: var(--bg-light);
    border-color: var(--border-color);
  }

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

  .btn-secondary:hover {
    background-color: var(--secondary-color);
    color: #0f172a;
  }
}

@media (prefers-color-scheme: dark) and (max-width: 768px) {
  nav li {
    border-top-color: rgba(0, 0, 0, 0.15);
  }
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--bg-color);
}

/* Skip Link for Accessibility */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--accent-color);
  color: white;
  padding: 0.5rem 1rem;
  z-index: 100;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
}

/* Focus States for Accessibility */
:focus-visible {
  outline: 3px solid var(--accent-color);
  outline-offset: 2px;
}

a:focus:not(:focus-visible) {
  outline: none;
}

/* Header and Navigation */
header {
  background-color: var(--primary-color);
  color: white;
  padding: 1rem 0;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 50;
}

@media (prefers-color-scheme: light) {
  header {
    background-color: var(--primary-color);
  }
}

.header-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.site-title {
  font-size: 1.75rem;
  font-weight: 600;
  color: white;
  text-decoration: none;
}

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

.site-tagline {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.8);
  margin-left: 1rem;
}

/* Mobile Navigation Toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.hamburger {
  display: block;
  width: 24px;
  height: 2px;
  background: white;
  position: relative;
  transition: background var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 2px;
  background: white;
  left: 0;
  transition: transform var(--transition-fast);
}

.hamburger::before {
  top: -7px;
}

.hamburger::after {
  top: 7px;
}

.nav-toggle[aria-expanded="true"] .hamburger {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .hamburger::before {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle[aria-expanded="true"] .hamburger::after {
  transform: rotate(-45deg) translate(5px, -5px);
}

nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
}

nav a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-normal);
  padding: 0.25rem 0;
}

nav a:hover {
  color: var(--accent-color);
}

/* Main Content */
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 2rem;
  min-height: calc(100vh - 200px);
}

main ul,
main ol {
  margin-left: 2.5rem;
  margin-top: 1rem;
  margin-bottom: 1.5rem;
}

main ul li,
main ol li {
  margin-bottom: 0.75rem;
  padding-left: 0.5rem;
}

/* Home Page Hero */
.hero {
  text-align: center;
  padding: 3rem 0;
  margin-bottom: 3rem;
}

.hero h1 {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-light);
  max-width: 700px;
  margin: 0 auto;
}

.hero-subtitle {
  margin-top: 1rem;
  font-size: 1rem;
}

/* Highlights Section (Home Page) */
.highlights-section {
  background: var(--bg-light);
  padding: 2rem;
  border-radius: 8px;
  margin-bottom: 3rem;
}

.highlights-section h2 {
  color: var(--primary-color);
  margin-bottom: 1.5rem;
}

.highlights-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.highlight-card h3 {
  color: var(--accent-color);
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.highlight-card p {
  color: var(--text-color);
}

/* Two-track cards (Home Page) */
.track-section h2 {
  color: var(--primary-color);
  margin-bottom: 1.5rem;
}

.track-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.track-card {
  background: var(--bg-light);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 2rem;
  box-shadow: var(--shadow-sm);
}

.track-card h3 {
  margin-top: 0;
  color: var(--primary-color);
  font-size: 1.3rem;
}

.track-card .track-link {
  display: inline-block;
  margin-top: 1rem;
  color: var(--accent-color);
  font-weight: 600;
  text-decoration: none;
}

.track-card .track-link:hover {
  text-decoration: underline;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 1.5rem;
}

/* Featured Section (Home Page) */
.featured-section h2 {
  color: var(--primary-color);
  margin-bottom: 1.5rem;
}

.section-cta {
  text-align: center;
  margin-top: 2rem;
}

/* Page Titles */
.page-title {
  font-size: 2.25rem;
  color: var(--primary-color);
  margin-top: 2.5rem;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 3px solid var(--accent-color);
}

/* Portfolio Grid */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.portfolio-card {
  background: var(--bg-light);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.5rem;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.portfolio-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.portfolio-card h3 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.portfolio-card h3 a {
  color: var(--primary-color);
  text-decoration: none;
}

.portfolio-card h3 a:hover {
  color: var(--accent-color);
}

.portfolio-meta {
  color: var(--text-light);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.portfolio-description {
  color: var(--text-color);
  margin-bottom: 1rem;
}

/* Portfolio Page */
.portfolio-intro {
  margin-bottom: 2rem;
  color: var(--text-light);
  font-size: 1.1rem;
}

.portfolio-section {
  margin-bottom: 3rem;
}

.portfolio-section-title {
  font-size: 1.4rem;
  color: var(--secondary-color);
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--border-color);
}

/* Portfolio Item Page */
.portfolio-header {
  margin-bottom: 2rem;
}

.portfolio-header h1 {
  color: var(--primary-color);
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

.portfolio-content h2 {
  color: var(--primary-color);
  margin-top: 3rem;
  margin-bottom: 0.75rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border-color);
}

.portfolio-content h3 {
  color: var(--secondary-color);
  margin-top: 2rem;
  margin-bottom: 0.5rem;
}

.portfolio-content h4,
.portfolio-content h5,
.portfolio-content h6 {
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

/* Table of Contents */
.toc {
  background: var(--bg-light);
  border-left: 3px solid var(--accent-color);
  border-radius: 0 6px 6px 0;
  padding: 1.25rem 1.5rem;
  margin-bottom: 2.5rem;
  font-size: 0.9rem;
}

.toc-title {
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-light);
  margin-bottom: 0.75rem;
}

.toc ol {
  margin: 0;
  padding-left: 1.25rem;
  list-style: decimal;
}

.toc ol ol {
  margin-top: 0.25rem;
  list-style: lower-alpha;
}

.toc li {
  margin-bottom: 0.35rem;
}

.toc a {
  color: var(--secondary-color);
  text-decoration: none;
}

.toc a:hover {
  color: var(--accent-color);
  text-decoration: underline;
}

.portfolio-content table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

.portfolio-content th {
  text-align: left;
  font-weight: 600;
  color: var(--secondary-color);
  background: var(--bg-light);
  padding: 0.6rem 0.85rem;
  border-bottom: 2px solid var(--border-color);
}

.portfolio-content td {
  padding: 0.6rem 0.85rem;
  border-bottom: 1px solid var(--border-color);
  vertical-align: top;
}

.portfolio-content tr:last-child td {
  border-bottom: none;
}

.portfolio-content ul,
.portfolio-content ol {
  margin-left: 2.5rem;
  margin-top: 1rem;
  margin-bottom: 1.5rem;
}

.portfolio-content ul li,
.portfolio-content ol li {
  margin-bottom: 0.75rem;
  padding-left: 0.5rem;
}

.portfolio-details {
  background: var(--bg-light);
  padding: 1.5rem;
  border-radius: 8px;
  margin-bottom: 2rem;
}

.portfolio-details dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
}

.portfolio-details dt {
  font-weight: 600;
  color: var(--secondary-color);
}

.portfolio-details dd {
  color: var(--text-color);
}

.portfolio-links {
  margin-top: 2rem;
}

.btn {
  display: inline-block;
  background-color: var(--accent-color);
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 500;
  transition: background-color var(--transition-normal), transform var(--transition-fast);
  margin-right: 1rem;
  margin-bottom: 0.5rem;
}

.btn:visited,
.btn-secondary:visited {
  color: white;
}

.btn:hover {
  background-color: var(--secondary-color);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--accent-color);
}

.btn-secondary:hover {
  background-color: var(--secondary-color);
}

/* About Page */
.about-intro {
  background: linear-gradient(135deg, var(--bg-light) 0%, var(--bg-color) 100%);
  padding: 2.5rem;
  border-radius: 8px;
  margin-bottom: 3rem;
  border-left: 4px solid var(--accent-color);
}

.about-intro .lead {
  font-size: 1.35rem;
  line-height: 1.7;
  color: var(--text-color);
  margin: 0;
}

.about-content {
  line-height: 1.8;
}

.about-content h2 {
  color: var(--primary-color);
  margin-top: 3rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--border-color);
}

.about-content h3 {
  color: var(--secondary-color);
  margin-top: 1.5rem;
  margin-bottom: 1rem;
}

.about-content p {
  margin-bottom: 1.25rem;
}

.about-content ul,
.about-content ol {
  margin-left: 1.5rem;
  margin-top: 1rem;
  margin-bottom: 1.5rem;
}

.about-content ul li,
.about-content ol li {
  margin-bottom: 0.6rem;
  padding-left: 0.25rem;
}

/* Competencies Grid */
.competencies-section {
  margin-top: 2.5rem;
}

.competencies-section h2 {
  margin-top: 0;
}

.competencies-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.competency-card {
  background: var(--bg-light);
  padding: 1.5rem 1.5rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.competency-card h3 {
  color: var(--accent-color);
  margin-top: 0;
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

.competency-card ul {
  margin-left: 0;
  margin-bottom: 0.5rem;
  list-style: none;
}

.competency-card li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: 0.75rem;
  font-size: 0.95rem;
  line-height: 1.5;
}

.competency-card li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 6px;
  height: 6px;
  background: var(--accent-color);
  border-radius: 50%;
}

/* Role Sections */
.role-section {
  background: var(--bg-light);
  padding: 1.5rem 2rem;
  border-radius: 8px;
  margin: 1.5rem 0;
  border-left: 3px solid var(--accent-color);
}

.role-section p:first-child {
  margin-top: 0;
}

.role-section ul {
  margin-bottom: 0;
}

/* Education Grid */
.education-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.education-item {
  background: var(--bg-light);
  padding: 1.25rem 1.5rem;
  border-radius: 8px;
  text-align: center;
  border: 1px solid var(--border-color);
}

.education-item p {
  margin: 0;
  color: var(--text-light);
  font-size: 0.95rem;
}

.education-item strong,
.education-item p:first-child {
  color: var(--primary-color);
  display: block;
  margin-bottom: 0.25rem;
}

/* Contact Info */
.contact-info {
  background: var(--bg-light);
  padding: 2.5rem;
  border-radius: 8px;
  margin-top: 3rem;
  border: 1px solid var(--border-color);
}

.contact-info h2 {
  color: var(--primary-color);
  margin-top: 0;
  margin-bottom: 1rem;
}

.contact-info > p {
  margin-bottom: 1.5rem;
  color: var(--text-light);
}

.contact-info ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.contact-info li {
  margin: 0;
  padding: 0;
}

.contact-info a {
  color: var(--accent-color);
  text-decoration: none;
}

.contact-info a:hover {
  text-decoration: underline;
}

/* Contact Form */
.contact-form-section {
  background: var(--bg-light);
  padding: 2.5rem;
  border-radius: 8px;
  margin-top: 2rem;
  border: 1px solid var(--border-color);
}

.contact-form-section h2 {
  color: var(--primary-color);
  margin-top: 0;
  margin-bottom: 1.5rem;
}

.contact-form {
  max-width: 600px;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text-color);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 1rem;
  font-family: inherit;
  background: var(--bg-color);
  color: var(--text-color);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-note {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--text-light);
}

/* Visually Hidden (for accessibility) */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Breadcrumb Navigation */
.breadcrumb {
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

.breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
}

.breadcrumb li {
  display: flex;
  align-items: center;
  margin: 0;
  padding: 0;
}

.breadcrumb li:not(:last-child)::after {
  content: '/';
  margin-left: 0.5rem;
  color: var(--text-light);
}

.breadcrumb a {
  color: var(--accent-color);
  text-decoration: none;
}

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

.breadcrumb li:last-child {
  color: var(--text-light);
}

/* Portfolio Back Link */
.portfolio-back {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.portfolio-back a {
  color: var(--accent-color);
  text-decoration: none;
}

.portfolio-back a:hover {
  text-decoration: underline;
}

/* 404 Page */
.error-page {
  text-align: center;
  padding: 4rem 2rem;
}

.error-page h1 {
  font-size: 6rem;
  color: var(--accent-color);
  margin-bottom: 1rem;
  line-height: 1;
}

.error-page p {
  font-size: 1.25rem;
  color: var(--text-light);
  margin-bottom: 2rem;
}

/* Footer */
footer {
  background-color: var(--primary-color);
  color: white;
  text-align: center;
  padding: 2rem;
  margin-top: 4rem;
}

@media (prefers-color-scheme: light) {
  footer {
    background-color: var(--primary-color);
  }
}

footer p {
  margin-bottom: 0.5rem;
}

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

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

/* Responsive Design */

/* Large screens (1024px and up) - default styles above */

/* Tablets and smaller laptops */
@media (max-width: 1024px) {
  .highlights-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Tablets */
@media (max-width: 768px) {
  .header-content {
    position: relative;
  }

  .site-tagline {
    display: none;
  }

  .nav-toggle {
    display: block;
    position: absolute;
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
  }

  #main-nav {
    display: none;
    width: 100%;
    order: 3;
    flex-basis: 100%;
  }

  #main-nav.nav-open {
    display: block;
  }

  nav ul {
    flex-direction: column;
    gap: 0;
    padding: 1rem 0;
  }

  nav li {
    border-top: 1px solid rgba(255,255,255,0.1);
  }

  nav a {
    display: block;
    padding: 0.75rem 0;
  }

  .portfolio-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1.1rem;
  }

  .page-title {
    font-size: 1.75rem;
  }

  main {
    padding: 2rem 1.5rem;
  }

  /* About page tablet */
  .about-intro {
    padding: 2rem;
  }

  .about-intro .lead {
    font-size: 1.2rem;
  }

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

  .role-section {
    padding: 1.25rem 1.5rem;
  }

  .contact-info ul {
    grid-template-columns: 1fr;
  }

  /* Contact form tablet */
  .contact-form-section {
    padding: 2rem;
  }

}

/* Small phones */
@media (max-width: 480px) {
  .header-content {
    padding: 0 1rem;
  }

  .nav-toggle {
    right: 1rem;
  }

  .site-title {
    font-size: 1.5rem;
  }

  .hero {
    padding: 2rem 0;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .highlights-section {
    padding: 1.5rem;
  }

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

  .portfolio-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .portfolio-card {
    padding: 1.25rem;
  }

  /* About page mobile */
  .about-intro {
    padding: 1.5rem;
    margin-bottom: 2rem;
  }

  .about-intro .lead {
    font-size: 1.1rem;
  }

  .about-content h2 {
    margin-top: 2rem;
    font-size: 1.35rem;
  }

  .competency-card {
    padding: 1.25rem;
  }

  .role-section {
    padding: 1rem 1.25rem;
    margin: 1rem 0;
  }

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

  .contact-info {
    padding: 1.5rem;
    margin-top: 2rem;
  }

  /* Contact form mobile */
  .contact-form-section {
    padding: 1.5rem;
    margin-top: 1.5rem;
  }

  .form-group input,
  .form-group textarea {
    padding: 0.65rem;
  }

  /* Breadcrumb mobile */
  .breadcrumb {
    font-size: 0.85rem;
  }

  .portfolio-details dl {
    grid-template-columns: 1fr;
  }

  .portfolio-details dt {
    margin-bottom: 0.25rem;
  }

  .portfolio-details dd {
    margin-bottom: 1rem;
  }

  main {
    padding: 1.5rem 1rem;
  }

  .page-title {
    font-size: 1.5rem;
    margin-top: 1.5rem;
  }

  .btn {
    display: block;
    text-align: center;
    margin-right: 0;
  }

  .error-page h1 {
    font-size: 4rem;
  }
}

/* Print Styles */
@media print {
  *,
  *::before,
  *::after {
    background: transparent !important;
    color: #000 !important;
    box-shadow: none !important;
    text-shadow: none !important;
  }

  header,
  footer,
  .nav-toggle,
  .skip-link,
  .btn {
    display: none !important;
  }

  main {
    max-width: 100%;
    padding: 0;
  }

  a {
    text-decoration: underline;
  }

  a[href]::after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
  }

  a[href^="#"]::after,
  a[href^="javascript:"]::after {
    content: "";
  }

  h1, h2, h3, h4, h5, h6 {
    page-break-after: avoid;
  }

  .portfolio-card,
  .highlight-card {
    break-inside: avoid;
  }

  .portfolio-grid {
    display: block;
  }

  .portfolio-card {
    border: 1px solid #ccc;
    margin-bottom: 1rem;
    padding: 1rem;
  }
}