/* Base Styles */
:root {
  --primary-color: #ffffff;
  --secondary-color: #f5f5f5;
  --accent-color: #333333;
  --text-color: #212121;
  --light-grey: #e0e0e0;
  --medium-grey: #9e9e9e;
  --dark-grey: #616161;
  --link-color: #2962ff;
  --link-hover: #0039cb;
  --success-color: #0039cb;;
  --error-color: #f44336;
  --shadow-sm: 0 2px 5px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 10px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.15);
  --border-radius: 8px;
  --transition-speed: 0.3s;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--primary-color);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

img {
  max-width: 100%;
  height: auto;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 1rem;
}

h1 {
  font-size: 2.5rem;
  font-weight: 500;
}

h2 {
  font-size: 2rem;
  margin-bottom: 2rem;
  position: relative;
  display: inline-block;
}

h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 50px;
  height: 3px;
  background-color: var(--accent-color);
}

h3 {
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}

p {
  margin-bottom: 1rem;
}

strong {
  font-weight: 600;
}

ul {
  margin-left: 1.5rem;
  margin-bottom: 1.5rem;
}

a {
  color: var(--text-color);
  text-decoration: none;
  transition: color var(--transition-speed) ease;
}

a:hover {
  color: var(--link-hover);
}

.text-link {
  color: var(--link-color);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-speed) ease;
}

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

/* Navigation */
header {
  position: sticky;
  top: 0;
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-md);
  z-index: 1000;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 0;
}

.logo a {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-color);
  text-decoration: none;
}

.nav-links {
  display: flex;
  list-style: none;
  margin: 0;
}

.nav-links li {
  margin-left: 2rem;
}

.nav-links a {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-speed) ease;
  font-size: 0.9rem;
  position: relative;
}

.nav-links a:hover {
  color: var(--dark-grey);
}

.nav-links a.active {
  font-weight: 700;
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--accent-color);
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background-color: var(--text-color);
  margin-bottom: 5px;
  border-radius: 2px;
  transition: all var(--transition-speed) ease;
}

/* Hero Section */
.hero {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 80vh;
  background-color: var(--primary-color);
  padding: 2rem 0;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.mission-box {
  background-color: var(--secondary-color);
  padding: 2.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  text-align: center;
}

.profile-container {
  position: relative;
  display: inline-block;
  margin-bottom: 2rem;
}

.profile-image {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid white;
  box-shadow: var(--shadow-md);
}

.mission-icon {
  position: absolute;
  bottom: -10px;
  right: -10px;
  font-size: 2.5rem;
  background-color: var(--primary-color);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}

.hero h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
  font-weight: 400;
}

.lead {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* About Section */
.about {
  padding: 5rem 0;
}

.about-content {
  display: flex;
  gap: 3rem;
}

.about-text {
  flex: 2;
}

.about-skills {
  flex: 1;
}

.section-nav {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--light-grey);
}

.section-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(165px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.section-card {
  background-color: var(--secondary-color);
  border-radius: var(--border-radius);
  padding: 1.5rem 1rem;
  text-align: center;
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: var(--text-color);
}

.section-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.card-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

.card-title {
  font-weight: 500;
  font-size: 0.9rem;
}

.skills-list {
  list-style-type: none;
  margin-left: 0;
}

.skills-list li {
  padding: 0.75rem 1rem;
  background-color: var(--secondary-color);
  margin-bottom: 0.5rem;
  border-radius: var(--border-radius);
  font-weight: 500;
  transition: transform var(--transition-speed) ease;
}

.skills-list li:hover {
  transform: translateX(5px);
}

.contact-preview {
  margin-top: 2rem;
}

.contact-button {
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--accent-color);
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  font-weight: 500;
  transition: background-color var(--transition-speed) ease;
}

.contact-button:hover {
  background-color: #000;
  color: white;
}

.contact-icon {
  margin-right: 0.75rem;
  font-size: 1.25rem;
}

/* Add spacing between menu and section title for all pages except index */
.container > .section-header,
.container > main > .section-header {
  margin-top: 3rem;
}

/* Section Headers */
.section-header {
  display: flex;
  align-items: center;
  margin-bottom: 2rem;
}

.section-description {
  color: var(--dark-grey);
  font-size: 1rem;
  margin-bottom: 2rem;
  margin-top: -1rem;
  line-height: 1.5;
}

.header-icon {
  font-size: 2.5rem;
  margin-right: 1rem;
}

/* Contacts Page */
.contact-section {
  padding: 5rem 0;
}

.contact-content {
  display: flex;
  gap: 3rem;
}

.contact-info {
  flex: 1;
}

.contact-intro {
  font-size: 1.1rem;
  margin-bottom: 2rem;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-method {
  display: flex;
  align-items: center;
  padding: 1.25rem;
  background-color: var(--secondary-color);
  border-radius: var(--border-radius);
  text-decoration: none;
  color: var(--text-color);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.contact-method:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  color: var(--text-color);
}

.method-icon {
  font-size: 1.5rem;
  margin-right: 1rem;
  min-width: 24px;
}

.method-detail {
  display: flex;
  flex-direction: column;
}

.method-label {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.method-value {
  font-size: 0.9rem;
  color: var(--dark-grey);
  word-break: break-all;
}

.contact-form-container {
  flex: 1;
  background-color: var(--secondary-color);
  padding: 2rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group label {
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  padding: 0.75rem;
  border: 1px solid var(--light-grey);
  border-radius: var(--border-radius);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color var(--transition-speed) ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-color);
}

.submit-button {
  background-color: var(--accent-color);
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  font-weight: 500;
  cursor: pointer;
  transition: background-color var(--transition-speed) ease;
  margin-top: 0.5rem;
}

.submit-button:hover {
  background-color: #000;
}

.form-status {
  margin-top: 1rem;
  padding: 0.75rem;
  border-radius: var(--border-radius);
  text-align: center;
  font-weight: 500;
  display: none;
}

.form-status.sending {
  display: block;
  background-color: var(--secondary-color);
}

.form-status.success {
  display: block;
  background-color: rgba(76, 175, 80, 0.1);
  color: var(--success-color);
}

.form-status.error {
  display: block;
  background-color: rgba(244, 67, 54, 0.1);
  color: var(--error-color);
}

/* Footer */
footer {
  background-color: var(--accent-color);
  color: white;
  padding: 2rem 0;
  margin-top: 3rem;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-icon {
  width: 24px;
  height: 24px;
  transition: transform var(--transition-speed) ease, opacity var(--transition-speed) ease;
}

.footer-links a:hover .footer-icon {
  transform: translateY(-3px);
  opacity: 0.8;
}

/* Education Page */
.education-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.education-card {
  background-color: var(--primary-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.education-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.education-header {
  background-color: var(--secondary-color);
  padding: 1.5rem;
  border-bottom: 1px solid var(--light-grey);
}

.education-header h3 {
  margin-bottom: 0.5rem;
}

.education-body {
  padding: 1.5rem;
}

.education-detail {
  margin-bottom: 0.5rem;
  display: flex;
  align-items: flex-start;
}

.detail-label {
  font-weight: 600;
  min-width: 120px;
  margin-right: 1rem;
}

.education-type {
  display: inline-block;
  background-color: var(--secondary-color);
  padding: 0.25rem 0.75rem;
  border-radius: var(--border-radius);
  font-size: 0.8rem;
  font-weight: 500;
  margin-top: 0.5rem;
}

.certification-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.certification-card {
  background-color: var(--primary-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
  display: flex;
  flex-direction: column;
}

.certification-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.certification-header {
  background-color: var(--secondary-color);
  padding: 1.25rem;
  border-bottom: 1px solid var(--light-grey);
}

.certification-header h4 {
  font-size: 1.1rem;
  margin-bottom: 0;
}

.certification-body {
  padding: 1.25rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.certification-detail {
  margin-bottom: 0.5rem;
}

.certification-detail:last-child {
  margin-bottom: 0;
}

.certification-label {
  font-weight: 600;
  display: block;
  font-size: 0.8rem;
  margin-bottom: 0.25rem;
  color: var(--dark-grey);
}

.certification-link {
  margin-top: auto;
  padding-top: 1rem;
}

.view-certificate {
  display: inline-flex;
  align-items: center;
  color: var(--link-color);
  font-weight: 500;
  transition: color var(--transition-speed) ease;
}

.view-certificate:hover {
  color: var(--link-hover);
  text-decoration: underline;
}

.view-certificate svg {
  margin-right: 0.5rem;
}

/* Projects Portfolio Page */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.project-card {
  background-color: var(--primary-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.project-header {
  padding: 1.5rem;
  background-color: var(--secondary-color);
  border-bottom: 1px solid var(--light-grey);
  display: flex;
  align-items: center;
}

.project-icon {
  font-size: 1.75rem;
  margin-right: 1rem;
  min-width: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.project-header h3 {
  margin: 0;
  font-size: 1.2rem;
  line-height: 1.4;
}

.project-details {
  padding: 1.5rem;
}

.project-info {
  margin-bottom: 1.5rem;
}

.info-item {
  margin-bottom: 0.75rem;
  display: flex;
  flex-wrap: wrap;
}

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

.label {
  font-weight: 600;
  margin-right: 0.5rem;
  min-width: 90px;
}

.value {
  color: var(--dark-grey);
}

.project-links {
  border-top: 1px solid var(--light-grey);
  padding-top: 1.25rem;
  display: flex;
  gap: 1rem;
}

.github-link {
  display: flex;
  align-items: center;
  padding: 0.6rem 1.2rem;
  background-color: var(--secondary-color);
  border-radius: var(--border-radius);
  text-decoration: none;
  color: var(--text-color);
  font-weight: 500;
  font-size: 0.9rem;
  transition: background-color var(--transition-speed) ease;
}

.github-link:hover {
  background-color: var(--light-grey);
}

.github-icon {
  display: flex;
  align-items: center;
  margin-right: 0.5rem;
}

/* Talks Events Page */
.events-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.event-card {
  background-color: var(--primary-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.event-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.event-header {
  padding: 1.5rem;
  background-color: var(--secondary-color);
  border-bottom: 1px solid var(--light-grey);
}

.event-header h3 {
  margin-bottom: 0.5rem;
}

.event-name {
  font-weight: 600;
  color: var(--dark-grey);
  font-size: 0.95rem;
}

.event-body {
  padding: 1.5rem;
}

.event-detail {
  margin-bottom: 0.75rem;
  display: flex;
  align-items: flex-start;
}

.event-detail:last-child {
  margin-bottom: 0;
}

.event-label {
  font-weight: 600;
  min-width: 80px;
  margin-right: 1rem;
}

.event-link {
  margin-top: 1rem;
}

.view-event {
  display: inline-flex;
  align-items: center;
  color: var(--link-color);
  font-weight: 500;
  transition: color var(--transition-speed) ease;
}

.view-event:hover {
  color: var(--link-hover);
  text-decoration: underline;
}

.view-event svg {
  margin-right: 0.5rem;
}

/* Experience Page */
.experience-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.experience-card {
  background-color: var(--primary-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
  border-left: 4px solid var(--accent-color);
}

.experience-card:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-md);
}

.experience-card.ongoing {
  border-left-color: var(--success-color);
}

.experience-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--light-grey);
  background-color: var(--secondary-color);
}

.experience-header h3 {
  margin-bottom: 0.25rem;
}

.experience-company {
  font-weight: 500;
  color: var(--dark-grey);
}

.experience-body {
  padding: 1.5rem;
}

.experience-detail {
  margin-bottom: 1rem;
  display: flex;
  align-items: flex-start;
}

.experience-label {
  font-weight: 600;
  min-width: 100px;
  margin-right: 1rem;
}

.experience-status {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: var(--border-radius);
  font-size: 0.8rem;
  font-weight: 500;
  margin-top: 0.5rem;
}

.experience-status.ongoing {
  background-color: rgba(76, 175, 80, 0.1);
  color: var(--success-color);
}

.experience-status.past {
  background-color: var(--secondary-color);
  color: var(--dark-grey);
}

/* Articles Page */
.articles-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.article-card {
  background-color: var(--primary-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.article-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.article-header {
  padding: 1.5rem;
  background-color: var(--secondary-color);
  border-bottom: 1px solid var(--light-grey);
}

.article-header h3 {
  margin-bottom: 0.5rem;
  font-size: 1.25rem;
}

.article-publisher {
  font-weight: 500;
  color: var(--dark-grey);
}

.article-body {
  padding: 1.5rem;
}

.article-date {
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
  color: var(--dark-grey);
  margin-top: 0.4rem;
}

.article-date svg {
  margin-right: 0.5rem;
}

.article-link {
  margin-top: 1rem;
}

.view-article {
  display: inline-flex;
  align-items: center;
  color: var(--link-color);
  font-weight: 500;
  transition: color var(--transition-speed) ease;
}

.view-article:hover {
  color: var(--link-hover);
  text-decoration: underline;
}

.view-article svg {
  margin-right: 0.5rem;
}

/* Associations Pages */
.organization-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.organization-card {
  background-color: var(--primary-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.organization-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.organization-header {
  padding: 1.5rem;
  background-color: var(--secondary-color);
  border-bottom: 1px solid var(--light-grey);
}

.organization-header h3 {
  margin-bottom: 0.25rem;
}

.organization-name {
  font-weight: 500;
  color: var(--dark-grey);
}

.organization-body {
  padding: 1.5rem;
}

.organization-detail {
  margin-bottom: 1rem;
  display: flex;
  align-items: flex-start;
}

.organization-label {
  font-weight: 600;
  min-width: 80px;
  margin-right: 1rem;
}

.organization-link {
  margin-top: 1rem;
}

.view-organization {
  display: inline-flex;
  align-items: center;
  color: var(--link-color);
  font-weight: 500;
  transition: color var(--transition-speed) ease;
}

.view-organization:hover {
  color: var(--link-hover);
  text-decoration: underline;
}

.view-organization svg {
  margin-right: 0.5rem;
}

/* Awards Page */
.awards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.award-card {
  background-color: var(--primary-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
  border-left: 4px solid gold;
}

.award-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.award-header {
  padding: 1.5rem;
  background-color: var(--secondary-color);
  border-bottom: 1px solid var(--light-grey);
  display: flex;
  align-items: center;
}

.award-icon {
  font-size: 1.75rem;
  margin-right: 1rem;
  color: gold;
}

.award-header h3 {
  margin-bottom: 0.25rem;
}

.award-competition {
  font-weight: 500;
  color: var(--dark-grey);
}

.award-body {
  padding: 1.5rem;
}

.award-detail {
  margin-bottom: 1rem;
  display: flex;
  align-items: flex-start;
}

.award-label {
  font-weight: 600;
  min-width: 80px;
  margin-right: 1rem;
}

.award-description {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--light-grey);
}

/* Responsive Styles */
@media (max-width: 950px) {
  .nav-links {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    flex-direction: column;
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: 0 10px 10px rgba(0, 0, 0, 0.1);
    padding: 1rem 0;
    display: none;
    z-index: 999;
    max-height: 85vh;
    overflow-y: auto;
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .nav-links li {
    margin: 0;
    text-align: center;
    padding: 0.75rem 0;
  }
  
  .hamburger {
    display: flex;
  }
  
  .hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }
  
  .hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
  }
  
  .about-content, 
  .contact-content {
    flex-direction: column;
  }

  .section {
    padding: 4rem 0;
  }
  
  .certification-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  }
  
  .section-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }
}

@media (max-width: 768px) {
  html {
    font-size: 15px;
  }
  
  .hero h1 {
    font-size: 1.8rem;
  }
  
  .lead {
    font-size: 1.1rem;
  }
  
  section {
    padding: 3.5rem 0;
  }
  
  .section-header {
    flex-direction: column;
    text-align: center;
  }
  
  .header-icon {
    margin-right: 0;
    margin-bottom: 1rem;
  }
  
  .footer-content {
    flex-direction: column;
    gap: 1.5rem;
  }
  
  .projects-grid, 
  .events-grid, 
  .experience-grid,
  .articles-grid,
  .organization-grid,
  .awards-grid {
    grid-template-columns: 1fr;
  }
  
  .project-header, 
  .award-header {
    flex-direction: column;
    text-align: center;
  }
  
  .project-icon, 
  .award-icon {
    margin-right: 0;
    margin-bottom: 0.75rem;
  }
  
  .info-item, 
  .event-detail, 
  .experience-detail,
  .award-detail,
  .organization-detail,
  .education-detail {
    flex-direction: column;
  }
  
  .label, 
  .event-label, 
  .experience-label,
  .award-label,
  .organization-label,
  .detail-label {
    margin-bottom: 0.25rem;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }
  
  .container {
    width: 95%;
    padding: 0 10px;
  }
  
  .hero h1 {
    font-size: 1.5rem;
  }
  
  .profile-image {
    width: 140px;
    height: 140px;
  }
  
  .mission-box, 
  .contact-box {
    padding: 1.5rem;
  }
  
  .mission-icon {
    font-size: 2rem;
    width: 40px;
    height: 40px;
  }
  
  section {
    padding: 3rem 0;
  }
  
  .section-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .certification-grid {
    grid-template-columns: 1fr;
  }
}

/* Back button on section pages */
.back-button {
  display: flex;
  align-items: center;
}

.back-button a {
  display: flex;
  align-items: center;
  padding: 0.5rem 1rem;
  background-color: var(--secondary-color);
  border-radius: var(--border-radius);
  text-decoration: none;
  color: var(--text-color);
  font-weight: 500;
  transition: background-color var(--transition-speed) ease;
}

.back-button a:hover {
  background-color: var(--light-grey);
}

.back-button svg {
  margin-right: 0.5rem;
}

/* ============================
   Animations & Visual Polish
   ============================ */

/* Fade-in animation for sections */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeInUp 0.6s ease-out forwards;
}

/* Stagger animation for cards */
.experience-card,
.education-card,
.article-card,
.event-card,
.award-card,
.organization-card,
.project-card,
.featured-card {
  opacity: 0;
  animation: fadeInUp 0.6s ease-out forwards;
}

.experience-card:nth-child(1),
.education-card:nth-child(1),
.article-card:nth-child(1),
.event-card:nth-child(1),
.award-card:nth-child(1),
.organization-card:nth-child(1),
.project-card:nth-child(1),
.featured-card:nth-child(1) {
  animation-delay: 0.1s;
}

.experience-card:nth-child(2),
.education-card:nth-child(2),
.article-card:nth-child(2),
.event-card:nth-child(2),
.award-card:nth-child(2),
.organization-card:nth-child(2),
.project-card:nth-child(2),
.featured-card:nth-child(2) {
  animation-delay: 0.2s;
}

.experience-card:nth-child(3),
.education-card:nth-child(3),
.article-card:nth-child(3),
.event-card:nth-child(3),
.award-card:nth-child(3),
.organization-card:nth-child(3),
.project-card:nth-child(3) {
  animation-delay: 0.3s;
}

.experience-card:nth-child(4),
.education-card:nth-child(4),
.article-card:nth-child(4),
.event-card:nth-child(4),
.award-card:nth-child(4),
.organization-card:nth-child(4),
.project-card:nth-child(4) {
  animation-delay: 0.4s;
}

.experience-card:nth-child(n+5),
.education-card:nth-child(n+5),
.article-card:nth-child(n+5),
.event-card:nth-child(n+5),
.award-card:nth-child(n+5),
.organization-card:nth-child(n+5),
.project-card:nth-child(n+5) {
  animation-delay: 0.5s;
}

/* Enhanced hover effects for cards */
.experience-card,
.education-card,
.article-card,
.event-card,
.award-card,
.organization-card,
.project-card,
.featured-card {
  transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
}

.experience-card:hover,
.education-card:hover,
.article-card:hover,
.event-card:hover,
.award-card:hover,
.organization-card:hover,
.project-card:hover,
.featured-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
}

/* Smooth link transitions */
.experience-company a,
.article-source,
.view-certificate,
.view-article,
.view-event,
.view-award,
.view-organization,
.view-project {
  transition: all 0.3s ease;
}

.experience-company a:hover,
.article-source:hover,
.view-certificate:hover,
.view-article:hover,
.view-event:hover,
.view-award:hover,
.view-organization:hover,
.view-project:hover {
  transform: translateX(3px);
  color: var(--link-hover);
}

/* Footer icon animations */
.footer-icon {
  transition: transform 0.3s ease, color 0.3s ease;
}

.footer-links a:hover .footer-icon {
  transform: scale(1.15);
  color: var(--link-hover);
}

/* Header navigation hover effect */
.nav-links a::before {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-color);
  transition: width 0.3s ease;
}

.nav-links a:hover::before {
  width: 100%;
}

.nav-links a.active::before {
  width: 0;
}

/* Improved spacing and white space */
section {
  padding: 4rem 0;
}

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

.experience-grid,
.education-grid,
.articles-grid,
.events-grid,
.awards-grid,
.organization-grid,
.projects-grid,
.featured-grid {
  gap: 2rem;
}

/* Hero section enhancements */
.hero h1 {
  animation: fadeInUp 0.8s ease-out;
}

.hero p {
  animation: fadeInUp 1s ease-out;
  animation-delay: 0.2s;
  opacity: 0;
  animation-fill-mode: forwards;
}

.hero .hero-links {
  animation: fadeInUp 1.2s ease-out;
  animation-delay: 0.4s;
  opacity: 0;
  animation-fill-mode: forwards;
}

/* Status badges with subtle animations */
.experience-status,
.date-badge {
  transition: transform 0.3s ease;
}

.experience-card:hover .experience-status,
.article-card:hover .date-badge {
  transform: scale(1.05);
}

/* Featured section styles */
.featured-in {
  background: linear-gradient(135deg, #f5f5f5 0%, #ffffff 100%);
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.featured-card {
  position: relative;
  overflow: hidden;
  background-color: var(--primary-color);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  color: var(--text-color);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.featured-logo {
  margin-bottom: 1rem;
}

.featured-icon {
  font-size: 2.5rem;
}

.featured-content h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  color: var(--accent-color);
}

.featured-title {
  font-size: 0.85rem;
  line-height: 1.4;
  margin-bottom: 0.5rem;
  color: var(--text-color);
}

.featured-date {
  font-size: 0.75rem;
  color: var(--medium-grey);
  margin-bottom: 0;
}

.featured-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  transition: left 0.5s ease;
}

.featured-card:hover::before {
  left: 100%;
}

/* Responsive featured grid */
@media (max-width: 950px) {
  .featured-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .featured-grid {
    grid-template-columns: 1fr;
  }
}

/* Smooth scroll behavior for all internal links */
html {
  scroll-behavior: smooth;
}

/* Enhanced focus states for accessibility */
a:focus,
button:focus {
  outline: 2px solid var(--link-color);
  outline-offset: 2px;
}

/* Loading state animation (for future use) */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.loading {
  animation: pulse 1.5s ease-in-out infinite;
}

/* Section Navigation (submenu for pages with multiple sections) */
.section-nav-menu {
  background-color: var(--secondary-color);
  border-bottom: 2px solid var(--light-grey);
  position: sticky;
  top: 70px;
  z-index: 100;
  margin-bottom: 3rem;
}

.section-nav-menu .container {
  padding: 0;
}

.section-nav-links {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-x: auto;
  scrollbar-width: thin;
}

.section-nav-links::-webkit-scrollbar {
  height: 3px;
}

.section-nav-links::-webkit-scrollbar-track {
  background: var(--light-grey);
}

.section-nav-links::-webkit-scrollbar-thumb {
  background: var(--medium-grey);
  border-radius: 3px;
}

.section-nav-links li {
  flex-shrink: 0;
}

.section-nav-links a {
  display: block;
  padding: 1rem 2rem;
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  transition: all 0.3s ease;
  border-bottom: 3px solid transparent;
  white-space: nowrap;
}

.section-nav-links a:hover {
  color: var(--accent-color);
  background-color: rgba(0, 0, 0, 0.02);
}

.section-nav-links a.active {
  color: var(--accent-color);
  border-bottom-color: var(--accent-color);
  background-color: rgba(0, 0, 0, 0.02);
}

@media (max-width: 768px) {
  .section-nav-menu {
    top: 60px;
  }
  
  .section-nav-links a {
    padding: 0.875rem 1.5rem;
    font-size: 0.85rem;
  }
}