@import url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@300;400;600;700&family=Raleway:wght@300;400;500;600;700&family=Poppins:wght@300;400;500;600;700&display=swap');
@import url('https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.0/font/bootstrap-icons.css');
@import url('https://unpkg.com/boxicons@2.1.4/css/boxicons.min.css');
@import url('https://unpkg.com/aos@2.3.1/dist/aos.css');

:root {
  --font-inter: 'Inter', sans-serif;
  --font-raleway: 'Raleway', sans-serif;
  --font-poppins: 'Poppins', sans-serif;
}

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

body {
  font-family: 'Open Sans', sans-serif;
  color: #ffffff;
  background: #020617;
  min-height: 100vh;
}

a {
  color: #149ddd;
  text-decoration: none;
}

a:hover {
  color: #37b3ed;
  text-decoration: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Raleway', sans-serif;
  color: #ffffff;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 30px;
}

@media (max-width: 768px) {
  .container {
    padding: 0 12px;
  }
}

section {
  padding: 60px 0;
  overflow: hidden;
}

.section-bg {
  background: rgba(2, 6, 23, 0.5);
}

.section-title {
  padding-bottom: 30px;
  text-align: center;
}

.section-title h2 {
  font-size: 32px;
  font-weight: bold;
  margin-bottom: 20px;
  padding-bottom: 20px;
  position: relative;
  color: #ffffff;
}

.section-title h2::after {
  content: "";
  position: absolute;
  display: block;
  width: 50px;
  height: 3px;
  background: #149ddd;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
}

/* Header Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 9997;
  background: rgba(2, 6, 23, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  padding: 12px 0;
  border-bottom: 1px solid rgba(20, 157, 221, 0.2);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.profile {
  display: flex;
  align-items: center;
  gap: 15px;
}

.profile-img {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  border: 3px solid #2c2f3f;
  object-fit: cover;
}

.name {
  font-size: 20px;
  font-weight: 600;
  color: #ffffff;
  font-family: 'Poppins', sans-serif;
  text-decoration: none;
  transition: color 0.3s ease;
}

.name:hover {
  color: #149ddd;
}

.nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.nav-list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 5px;
  flex-wrap: wrap;
  justify-content: center;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.7);
  padding: 10px 18px;
  border-radius: 8px;
  transition: all 0.3s ease;
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  position: relative;
}

.nav-link i {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
  color: #ffffff;
  background: rgba(20, 157, 221, 0.15);
}

.nav-link:hover i,
.nav-link.active i {
  color: #149ddd;
}

.social-links {
  display: flex;
  gap: 10px;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.8);
  border-radius: 50%;
  transition: all 0.3s ease;
  text-decoration: none;
  font-size: 18px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.social-link:hover {
  background: #149ddd;
  color: #ffffff;
  border-color: #149ddd;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(20, 157, 221, 0.4);
}

.mobile-toggle {
  display: none;
  background: rgba(20, 157, 221, 0.2);
  color: #ffffff;
  border: 1px solid rgba(20, 157, 221, 0.3);
  width: 42px;
  height: 42px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 24px;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.mobile-toggle:hover {
  background: rgba(20, 157, 221, 0.3);
  border-color: #149ddd;
}

@media (max-width: 1199px) {
  .nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(2, 6, 23, 0.98);
    backdrop-filter: blur(10px);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid rgba(20, 157, 221, 0.2);
  }

  .nav.open {
    max-height: 500px;
    padding: 20px 0;
  }

  .nav-list {
    flex-direction: column;
    width: 100%;
    padding: 0 20px;
  }

  .nav-link {
    width: 100%;
    padding: 12px 15px;
  }

  .mobile-toggle {
    display: flex;
  }

  .header-container {
    padding: 0 15px;
  }
}

@media (max-width: 768px) {
  .profile {
    gap: 10px;
  }

  .name {
    font-size: 16px;
  }

  .profile-img {
    width: 40px;
    height: 40px;
  }

  .social-links {
    display: none;
  }
}

/* Content Sections - Tab System */
.content-section {
  display: none;
  min-height: calc(100vh - 80px);
  padding-top: 20px;
}

.content-section.active {
  display: block;
}

/* Hero Section */
.hero {
  width: 100%;
  min-height: auto;
  background: transparent;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 100px 20px 20px 20px;
}

.hero::before {
  display: none;
}

.hero-container {
  position: relative;
  z-index: 2;
  min-width: 300px;
  text-align: center;
}

.hero-container h1 {
  margin: 0 0 10px 0;
  font-size: 64px;
  font-weight: 700;
  line-height: 56px;
  color: #89CFF0;
}

.hero-container p {
  color: #89CFF0;
  margin-bottom: 0;
  font-size: 26px;
  font-family: 'Poppins', sans-serif;
}

.hero-container p span {
  color: #89CFF0;
  padding-bottom: 4px;
  letter-spacing: 1px;
  border-bottom: 3px solid #149ddd;
}


@media (max-width: 768px) {
  .hero-container h1 {
    font-size: 28px;
    line-height: 36px;
  }

  .hero-container p {
    font-size: 18px;
    line-height: 24px;
    margin-bottom: 30px;
  }
}

/* Back to top button */
.back-to-top {
  position: fixed;
  visibility: hidden;
  opacity: 0;
  right: 15px;
  bottom: 15px;
  z-index: 996;
  background: #149ddd;
  width: 40px;
  height: 40px;
  border-radius: 50px;
  transition: all 0.4s;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  text-decoration: none;
}

.back-to-top i {
  font-size: 28px;
  color: #89CFF0;
  line-height: 0;
}

.back-to-top:hover {
  background: #2eafec;
  color: #89CFF0;
}

.back-to-top.active {
  visibility: visible;
  opacity: 1;
}

/* Image Modal */
.image-modal {
  display: none;
  position: fixed;
  z-index: 9999;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(10px);
  animation: fadeIn 0.3s ease;
}

.image-modal.active {
  display: flex;
  align-items: center;
  justify-content: center;
}

.image-modal-content {
  max-width: 90%;
  max-height: 90%;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
  animation: zoomIn 0.3s ease;
}

.image-modal-close {
  position: absolute;
  top: 30px;
  right: 40px;
  color: #ffffff;
  font-size: 40px;
  font-weight: bold;
  cursor: pointer;
  z-index: 10000;
  transition: color 0.3s ease, transform 0.3s ease;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
}

.image-modal-close:hover {
  color: #149ddd;
  transform: rotate(90deg);
  background: rgba(20, 157, 221, 0.2);
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes zoomIn {
  from {
    transform: scale(0.8);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

@media (max-width: 768px) {
  .image-modal-close {
    top: 20px;
    right: 20px;
    font-size: 32px;
    width: 40px;
    height: 40px;
  }

  .image-modal-content {
    max-width: 95%;
    max-height: 85%;
  }
}

/* About Section */
.about {
  padding: 80px 0;
  background: #020617;
  position: relative;
}

.about::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(20, 157, 221, 0.5), transparent);
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-title {
  font-size: 42px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 16px;
  background: linear-gradient(135deg, #ffffff 0%, #149ddd 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.7);
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.6;
}

.main-content {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 50px;
  align-items: start;
}

.image-section {
  position: sticky;
  top: 120px;
}

.image-wrapper {
  position: relative;
  margin-bottom: 24px;
}

.image-border {
  position: absolute;
  top: -10px;
  left: -10px;
  right: -10px;
  bottom: -10px;
  background: linear-gradient(135deg, #149ddd, #37b3ed);
  border-radius: 20px;
  opacity: 0.3;
  z-index: 0;
}

.image {
  width: 100%;
  height: auto;
  border-radius: 16px;
  position: relative;
  z-index: 1;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease;
}

.image-wrapper:hover .image {
  transform: scale(1.02);
}

.image-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(20, 157, 221, 0.1), transparent);
  border-radius: 16px;
  z-index: 2;
  pointer-events: none;
}

.image-info {
  text-align: center;
  padding: 20px;
  background: rgba(20, 157, 221, 0.08);
  border: 1px solid rgba(20, 157, 221, 0.2);
  border-radius: 12px;
  backdrop-filter: blur(10px);
  margin-bottom: 24px;
}

.role-title {
  font-size: 24px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 12px;
}

.organization {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}

.org-label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
}

.org-link {
  font-size: 16px;
  font-weight: 600;
  color: #149ddd;
  text-decoration: none;
  transition: color 0.3s ease;
}

.org-link:hover {
  color: #37b3ed;
  text-decoration: underline;
}

.about-content-wrapper {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.highlights-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.highlight-card {
  background: rgba(20, 157, 221, 0.08);
  border: 1px solid rgba(20, 157, 221, 0.2);
  border-radius: 12px;
  padding: 24px;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.highlight-card:hover {
  border-color: rgba(20, 157, 221, 0.4);
  background: rgba(20, 157, 221, 0.12);
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(20, 157, 221, 0.2);
}

.highlight-icon {
  font-size: 32px;
  margin-bottom: 12px;
  display: block;
}

.highlight-title {
  font-size: 18px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
}

.highlight-description {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.6;
  margin: 0;
}

.skills-section {
  background: rgba(20, 157, 221, 0.05);
  border: 1px solid rgba(20, 157, 221, 0.2);
  border-radius: 16px;
  padding: 30px;
  backdrop-filter: blur(10px);
}

.skills-title {
  font-size: 22px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.skills-title::before {
  content: '';
  width: 4px;
  height: 24px;
  background: linear-gradient(135deg, #149ddd, #37b3ed);
  border-radius: 2px;
}

.research-section-subsection {
  background: rgba(20, 157, 221, 0.05);
  border: 1px solid rgba(20, 157, 221, 0.2);
  border-radius: 16px;
  padding: 30px;
  backdrop-filter: blur(10px);
  margin-top: 24px;
}

.image-section .research-section-subsection {
  margin-top: 0;
}

.research-card-subsection {
  background: rgba(20, 157, 221, 0.08);
  border: 2px solid rgba(20, 157, 221, 0.2);
  border-radius: 16px;
  padding: 24px;
  display: block;
  text-decoration: none;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.research-card-subsection::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #149ddd, #37b3ed);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.research-card-subsection:hover {
  border-color: rgba(20, 157, 221, 0.5);
  background: rgba(20, 157, 221, 0.15);
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(20, 157, 221, 0.3);
}

.research-card-subsection:hover::before {
  transform: scaleX(1);
}

.research-header-subsection {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.research-icon-subsection {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #149ddd, #37b3ed);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(20, 157, 221, 0.4);
}

.research-icon-subsection i {
  font-size: 28px;
  color: #ffffff;
}

.research-badge-subsection {
  background: rgba(20, 157, 221, 0.2);
  border: 1px solid rgba(20, 157, 221, 0.4);
  border-radius: 20px;
  padding: 6px 14px;
}

.badge-text-subsection {
  font-size: 13px;
  font-weight: 600;
  color: #149ddd;
}

.research-content-subsection {
  margin-bottom: 20px;
}

.research-title-subsection {
  font-size: 18px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 12px;
  line-height: 1.4;
}

.research-description-subsection {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.6;
  margin-bottom: 16px;
}

.research-meta-subsection {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.meta-item-subsection {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
}

.meta-item-subsection i {
  font-size: 16px;
  color: #149ddd;
}

.research-footer-subsection {
  padding-top: 16px;
  border-top: 1px solid rgba(20, 157, 221, 0.2);
}

.read-more-subsection {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: #149ddd;
  transition: all 0.3s ease;
}

.research-card-subsection:hover .read-more-subsection {
  color: #37b3ed;
  transform: translateX(5px);
}

.read-more-subsection i {
  font-size: 18px;
  transition: transform 0.3s ease;
}

.research-card-subsection:hover .read-more-subsection i {
  transform: translateX(5px);
}

.skills-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.core-tech-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  column-gap: 12px;
  row-gap: 10px;
  margin-top: 20px;
}

@media (max-width: 1024px) {
  .core-tech-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .core-tech-grid {
    grid-template-columns: 1fr;
  }
}

.tech-card {
  padding: 8px 12px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
  transition: all 0.3s ease;
  cursor: default;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(20, 157, 221, 0.2);
  background: rgba(20, 157, 221, 0.08);
  color: #ffffff;
  text-align: center;
  min-height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tech-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(20, 157, 221, 0.3);
  background: rgba(20, 157, 221, 0.15);
  border-color: rgba(20, 157, 221, 0.4);
}

.skill-tag {
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.3s ease;
  cursor: default;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.skill-tag:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.bio-section {
  background: linear-gradient(135deg, rgba(20, 157, 221, 0.1) 0%, rgba(20, 157, 221, 0.05) 100%);
  border: 1px solid rgba(20, 157, 221, 0.3);
  border-radius: 20px;
  padding: 0;
  backdrop-filter: blur(15px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 255, 255, 0.05) inset;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.bio-section:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 40px rgba(20, 157, 221, 0.2), 0 0 0 1px rgba(255, 255, 255, 0.1) inset;
}

.bio-header {
  background: linear-gradient(135deg, rgba(20, 157, 221, 0.2) 0%, rgba(20, 157, 221, 0.1) 100%);
  padding: 24px 30px;
  border-bottom: 1px solid rgba(20, 157, 221, 0.2);
  display: flex;
  align-items: center;
  gap: 12px;
}

.bio-header i {
  font-size: 28px;
  color: rgba(20, 157, 221, 0.9);
}

.bio-title {
  font-size: 24px;
  font-weight: 600;
  color: #ffffff;
  margin: 0;
  font-family: 'Raleway', sans-serif;
}

.bio-content {
  padding: 30px;
}

.bio-text {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.8;
  margin-bottom: 16px;
}

.bio-text:last-child {
  margin-bottom: 0;
}

.contact-section {
  background: transparent;
  border: 1px solid rgba(20, 157, 221, 0.2);
  border-radius: 16px;
  padding: 40px;
  backdrop-filter: blur(10px);
  margin-top: 20px;
}

.contact-title {
  font-size: 26px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.contact-title::before {
  content: '';
  width: 4px;
  height: 26px;
  background: linear-gradient(135deg, #149ddd, #37b3ed);
  border-radius: 2px;
}

.contact-subtitle {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 30px;
  line-height: 1.6;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.contact-card {
  background: rgba(20, 157, 221, 0.08);
  border: 2px solid rgba(20, 157, 221, 0.2);
  border-radius: 16px;
  padding: 24px;
  text-decoration: none;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.contact-card:hover {
  border-color: rgba(20, 157, 221, 0.5);
  background: rgba(20, 157, 221, 0.15);
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(20, 157, 221, 0.3);
}

.contact-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #149ddd, #37b3ed);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(20, 157, 221, 0.4);
  transition: transform 0.3s ease;
}

.contact-card:hover .contact-icon {
  transform: scale(1.1) rotate(5deg);
}

.contact-label {
  font-size: 16px;
  font-weight: 600;
  color: #ffffff;
  margin: 0;
}

.contact-value {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
  margin: 0;
  word-break: break-word;
}

@media (max-width: 1024px) {
  .main-content {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-areas: 
      "image-info"
      "about-content"
      "research";
    gap: 40px;
  }

  .image-section {
    position: static;
    max-width: 100%;
    margin: 0;
    display: contents;
  }

  .image-info {
    grid-area: image-info;
    max-width: 400px;
    margin: 0 auto;
  }

  .image-section .research-section-subsection {
    margin-top: 0;
    grid-area: research;
    max-width: 100%;
  }

  .about-content-wrapper {
    grid-area: about-content;
  }

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

@media (max-width: 768px) {
  .section-title {
    font-size: 32px;
  }

  .section-subtitle {
    font-size: 16px;
  }

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

  .skills-grid {
    gap: 8px;
  }

  .tech-card {
    font-size: 10px;
    padding: 8px 12px;
    min-height: 38px;
  }

  .skill-tag {
    font-size: 12px;
    padding: 6px 12px;
  }

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

  .contact-section {
    padding: 30px;
  }
}

/* Experience Section */
.experience-section {
  background: #020617;
}

/* Resume Section */
.resume-section {
  padding: 80px 0;
  background: #020617;
  position: relative;
}

.resume-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(20, 157, 221, 0.5), transparent);
}

.icon-wrapper {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, #149ddd, #37b3ed);
  border-radius: 20px;
  margin-bottom: 24px;
  box-shadow: 0 10px 30px rgba(20, 157, 221, 0.3);
}

.icon-wrapper i {
  font-size: 40px;
  color: #ffffff;
}

.resume-card {
  max-width: 800px;
  margin: 0 auto;
  background: rgba(20, 157, 221, 0.1);
  border: 2px solid rgba(20, 157, 221, 0.3);
  border-radius: 20px;
  padding: 40px;
  display: flex;
  align-items: center;
  gap: 30px;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.resume-card:hover {
  border-color: rgba(20, 157, 221, 0.5);
  background: rgba(20, 157, 221, 0.15);
  transform: translateY(-5px);
  box-shadow: 0 15px 50px rgba(20, 157, 221, 0.3);
}

.resume-icon {
  flex-shrink: 0;
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, #149ddd, #37b3ed);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px rgba(20, 157, 221, 0.4);
}

.resume-icon i {
  font-size: 40px;
  color: #ffffff;
}

.resume-info {
  flex: 1;
}

.resume-info h3 {
  font-size: 24px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
}

.resume-info p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 8px;
}

.resume-date {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
}

.download-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  background: linear-gradient(135deg, #149ddd, #37b3ed);
  color: white;
  border: none;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(20, 157, 221, 0.4);
  white-space: nowrap;
}

.download-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(20, 157, 221, 0.5);
}

.download-btn i {
  font-size: 20px;
}

/* Education & Experience */
.education-experience {
  padding: 80px 0;
  background: #020617;
  position: relative;
}

.education-experience::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(20, 157, 221, 0.5), transparent);
}

.timeline-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  max-width: 1200px;
  margin: 0 auto;
}

.timeline-column {
  position: relative;
}

.category-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 40px;
  padding-bottom: 20px;
  border-bottom: 2px solid rgba(20, 157, 221, 0.3);
}

.category-icon {
  font-size: 32px;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(20, 157, 221, 0.2);
  border-radius: 12px;
}

.category-title {
  font-size: 28px;
  font-weight: 700;
  color: #ffffff;
}

.timeline {
  position: relative;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, #149ddd, rgba(20, 157, 221, 0.3));
}

.timeline-item {
  position: relative;
  margin-bottom: 18px;
  padding-left: 30px;
}

.timeline-marker {
  position: absolute;
  left: -18px;
  top: 0;
  width: 32px;
  height: 32px;
  background: rgba(20, 157, 221, 0.2);
  border: 2px solid #149ddd;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  backdrop-filter: blur(10px);
}

.marker-icon {
  font-size: 14px;
}

.timeline-content {
  background: rgba(20, 157, 221, 0.08);
  border: 1px solid rgba(20, 157, 221, 0.2);
  border-radius: 12px;
  padding: 14px;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.timeline-content:hover {
  border-color: rgba(20, 157, 221, 0.4);
  background: rgba(20, 157, 221, 0.12);
  transform: translateX(10px);
  box-shadow: 0 10px 30px rgba(20, 157, 221, 0.2);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 6px;
  gap: 10px;
  flex-wrap: wrap;
}

.timeline-title {
  font-size: 14px;
  font-weight: 700;
  color: #ffffff;
  margin: 0;
  flex: 1;
  line-height: 1.3;
}

.timeline-link {
  color: #ffffff;
  text-decoration: none;
  transition: color 0.3s ease;
}

.timeline-link:hover {
  color: #149ddd;
}

.timeline-period {
  font-size: 11px;
  color: #149ddd;
  font-weight: 600;
  white-space: nowrap;
  background: rgba(20, 157, 221, 0.2);
  padding: 3px 10px;
  border-radius: 14px;
}

.timeline-institution,
.timeline-role {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 5px;
  font-weight: 500;
}

.timeline-details,
.timeline-description {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.5;
  margin: 0;
}

/* Certifications Section */
.certifications-section {
  padding: 80px 0;
  background: #020617;
  position: relative;
}

.certifications-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(20, 157, 221, 0.5), transparent);
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto;
}

.cert-card {
  background: rgba(20, 157, 221, 0.1);
  border: 2px solid rgba(20, 157, 221, 0.2);
  border-radius: 20px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  text-decoration: none;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.cert-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #149ddd, #37b3ed);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.cert-card:hover {
  border-color: rgba(20, 157, 221, 0.5);
  background: rgba(20, 157, 221, 0.15);
  transform: translateY(-8px);
  box-shadow: 0 15px 40px rgba(20, 157, 221, 0.3);
}

.cert-card:hover::before {
  transform: scaleX(1);
}

.cert-icon {
  width: 70px;
  height: 70px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.icon-emoji {
  font-size: 36px;
}

.cert-content {
  flex: 1;
}

.cert-title {
  font-size: 22px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
}

.cert-issuer {
  font-size: 16px;
  color: #149ddd;
  font-weight: 600;
  margin-bottom: 12px;
}

.cert-description {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
  margin: 0;
}

.cert-arrow {
  align-self: flex-end;
  width: 40px;
  height: 40px;
  background: rgba(20, 157, 221, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.cert-card:hover .cert-arrow {
  background: #149ddd;
  transform: translateX(5px);
}

.cert-arrow i {
  font-size: 24px;
  color: #149ddd;
  transition: color 0.3s ease;
}

.cert-card:hover .cert-arrow i {
  color: #ffffff;
}

/* Research Section */
.research-section {
  padding: 80px 0;
  background: #020617;
  position: relative;
}

.research-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(20, 157, 221, 0.5), transparent);
}

.research-container {
  max-width: 900px;
  margin: 0 auto;
}

.research-card {
  background: rgba(20, 157, 221, 0.1);
  border: 2px solid rgba(20, 157, 221, 0.2);
  border-radius: 24px;
  padding: 40px;
  display: block;
  text-decoration: none;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.research-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #149ddd, #37b3ed);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.research-card:hover {
  border-color: rgba(20, 157, 221, 0.5);
  background: rgba(20, 157, 221, 0.15);
  transform: translateY(-8px);
  box-shadow: 0 20px 50px rgba(20, 157, 221, 0.3);
}

.research-card:hover::before {
  transform: scaleX(1);
}

.research-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.research-icon {
  width: 70px;
  height: 70px;
  background: linear-gradient(135deg, #149ddd, #37b3ed);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px rgba(20, 157, 221, 0.4);
}

.research-badge {
  background: rgba(20, 157, 221, 0.2);
  border: 1px solid rgba(20, 157, 221, 0.4);
  border-radius: 20px;
  padding: 8px 16px;
}

.badge-text {
  font-size: 14px;
  font-weight: 600;
  color: #149ddd;
}

.research-content {
  margin-bottom: 24px;
}

.research-title {
  font-size: 24px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 16px;
  line-height: 1.4;
}

.research-description {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.7;
  margin-bottom: 20px;
}

.research-meta {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
}

.meta-item i {
  font-size: 18px;
  color: #149ddd;
}

.research-footer {
  padding-top: 20px;
  border-top: 1px solid rgba(20, 157, 221, 0.2);
}

.read-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 600;
  color: #149ddd;
  transition: all 0.3s ease;
}

.research-card:hover .read-more {
  color: #37b3ed;
  transform: translateX(5px);
}

.read-more i {
  font-size: 20px;
  transition: transform 0.3s ease;
}

.research-card:hover .read-more i {
  transform: translateX(5px);
}

@media (max-width: 1024px) {
  .timeline-container {
    grid-template-columns: 1fr;
    gap: 60px;
  }

  .timeline {
    padding-left: 30px;
  }
}

@media (max-width: 768px) {
  .resume-card {
    flex-direction: column;
    text-align: center;
    padding: 30px;
  }

  .category-title {
    font-size: 24px;
  }

  .timeline-header {
    flex-direction: column;
    gap: 8px;
  }

  .timeline-period {
    align-self: flex-start;
  }

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

  .research-card {
    padding: 30px;
  }

  .research-title {
    font-size: 20px;
  }
}

/* Resume Section */
.resume-section {
  padding: 80px 0;
  background: #020617;
  position: relative;
}

.resume-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(20, 157, 221, 0.5), transparent);
}

.icon-wrapper {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, #149ddd, #37b3ed);
  border-radius: 20px;
  margin-bottom: 24px;
  box-shadow: 0 10px 30px rgba(20, 157, 221, 0.3);
}

.icon-wrapper i {
  font-size: 40px;
  color: #ffffff;
}

.resume-card {
  max-width: 800px;
  margin: 0 auto;
  background: rgba(20, 157, 221, 0.1);
  border: 2px solid rgba(20, 157, 221, 0.3);
  border-radius: 20px;
  padding: 40px;
  display: flex;
  align-items: center;
  gap: 30px;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.resume-card:hover {
  border-color: rgba(20, 157, 221, 0.5);
  background: rgba(20, 157, 221, 0.15);
  transform: translateY(-5px);
  box-shadow: 0 15px 50px rgba(20, 157, 221, 0.3);
}

.resume-icon {
  flex-shrink: 0;
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, #149ddd, #37b3ed);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px rgba(20, 157, 221, 0.4);
}

.resume-icon i {
  font-size: 40px;
  color: #ffffff;
}

.resume-info {
  flex: 1;
}

.resume-info h3 {
  font-size: 24px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
}

.resume-info p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 8px;
}

.resume-date {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
}

.download-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  background: linear-gradient(135deg, #149ddd, #37b3ed);
  color: white;
  border: none;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(20, 157, 221, 0.4);
  white-space: nowrap;
}

.download-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(20, 157, 221, 0.5);
}

.download-btn i {
  font-size: 20px;
}

/* Education & Experience Timeline */
.resume {
  padding: 80px 0;
  background: #020617;
  position: relative;
}

.resume::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(20, 157, 221, 0.5), transparent);
}

.timeline-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  max-width: 1200px;
  margin: 0 auto;
}

.timeline-column {
  position: relative;
}

.category-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 40px;
  padding-bottom: 20px;
  border-bottom: 2px solid rgba(20, 157, 221, 0.3);
}

.category-icon {
  font-size: 32px;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(20, 157, 221, 0.2);
  border-radius: 12px;
}

.category-title {
  font-size: 28px;
  font-weight: 700;
  color: #ffffff;
}

.timeline {
  position: relative;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, #149ddd, rgba(20, 157, 221, 0.3));
}

.timeline-item {
  position: relative;
  margin-bottom: 18px;
  padding-left: 30px;
}

.timeline-marker {
  position: absolute;
  left: -18px;
  top: 0;
  width: 32px;
  height: 32px;
  background: rgba(20, 157, 221, 0.2);
  border: 2px solid #149ddd;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  backdrop-filter: blur(10px);
}

.marker-icon {
  font-size: 14px;
}

.timeline-content {
  background: rgba(20, 157, 221, 0.08);
  border: 1px solid rgba(20, 157, 221, 0.2);
  border-radius: 12px;
  padding: 14px;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.timeline-content:hover {
  border-color: rgba(20, 157, 221, 0.4);
  background: rgba(20, 157, 221, 0.12);
  transform: translateX(10px);
  box-shadow: 0 10px 30px rgba(20, 157, 221, 0.2);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 6px;
  gap: 10px;
  flex-wrap: wrap;
}

.timeline-title {
  font-size: 14px;
  font-weight: 700;
  color: #ffffff;
  margin: 0;
  flex: 1;
  line-height: 1.3;
}

.timeline-link {
  color: #ffffff;
  text-decoration: none;
  transition: color 0.3s ease;
}

.timeline-link:hover {
  color: #149ddd;
}

.timeline-period {
  font-size: 11px;
  color: #149ddd;
  font-weight: 600;
  white-space: nowrap;
  background: rgba(20, 157, 221, 0.2);
  padding: 3px 10px;
  border-radius: 14px;
}

.timeline-institution,
.timeline-role {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 5px;
  font-weight: 500;
}

.timeline-details,
.timeline-description {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.5;
  margin: 0;
}

/* Certifications Section */
.certifications {
  padding: 80px 0;
  background: #020617;
  position: relative;
}

.certifications::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(20, 157, 221, 0.5), transparent);
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto;
}

.cert-card {
  background: rgba(20, 157, 221, 0.1);
  border: 2px solid rgba(20, 157, 221, 0.2);
  border-radius: 20px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  text-decoration: none;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.cert-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #149ddd, #37b3ed);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.cert-card:hover {
  border-color: rgba(20, 157, 221, 0.5);
  background: rgba(20, 157, 221, 0.15);
  transform: translateY(-8px);
  box-shadow: 0 15px 40px rgba(20, 157, 221, 0.3);
}

.cert-card:hover::before {
  transform: scaleX(1);
}

.cert-icon {
  width: 70px;
  height: 70px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.icon-emoji {
  font-size: 36px;
}

.cert-content {
  flex: 1;
}

.cert-title {
  font-size: 22px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
}

.cert-issuer {
  font-size: 16px;
  color: #149ddd;
  font-weight: 600;
  margin-bottom: 12px;
}

.cert-description {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
  margin: 0;
}

.cert-arrow {
  align-self: flex-end;
  width: 40px;
  height: 40px;
  background: rgba(20, 157, 221, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.cert-card:hover .cert-arrow {
  background: #149ddd;
  transform: translateX(5px);
}

.cert-arrow i {
  font-size: 24px;
  color: #149ddd;
  transition: color 0.3s ease;
}

.cert-card:hover .cert-arrow i {
  color: #ffffff;
}

/* Research Section */
.research {
  padding: 80px 0;
  background: #020617;
  position: relative;
}

.research::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(20, 157, 221, 0.5), transparent);
}

.research-container {
  max-width: 900px;
  margin: 0 auto;
}

.research-card {
  background: rgba(20, 157, 221, 0.1);
  border: 2px solid rgba(20, 157, 221, 0.2);
  border-radius: 24px;
  padding: 40px;
  display: block;
  text-decoration: none;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.research-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #149ddd, #37b3ed);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.research-card:hover {
  border-color: rgba(20, 157, 221, 0.5);
  background: rgba(20, 157, 221, 0.15);
  transform: translateY(-8px);
  box-shadow: 0 20px 50px rgba(20, 157, 221, 0.3);
}

.research-card:hover::before {
  transform: scaleX(1);
}

.research-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.research-icon {
  width: 70px;
  height: 70px;
  background: linear-gradient(135deg, #149ddd, #37b3ed);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px rgba(20, 157, 221, 0.4);
}

.research-badge {
  background: rgba(20, 157, 221, 0.2);
  border: 1px solid rgba(20, 157, 221, 0.4);
  border-radius: 20px;
  padding: 8px 16px;
}

.badge-text {
  font-size: 14px;
  font-weight: 600;
  color: #149ddd;
}

.research-content {
  margin-bottom: 24px;
}

.research-title {
  font-size: 24px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 16px;
  line-height: 1.4;
}

.research-description {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.7;
  margin-bottom: 20px;
}

.research-meta {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
}

.meta-item i {
  font-size: 18px;
  color: #149ddd;
}

.research-footer {
  padding-top: 20px;
  border-top: 1px solid rgba(20, 157, 221, 0.2);
}

.read-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 600;
  color: #149ddd;
  transition: all 0.3s ease;
}

.research-card:hover .read-more {
  color: #37b3ed;
  transform: translateX(5px);
}

.read-more i {
  font-size: 20px;
  transition: transform 0.3s ease;
}

.research-card:hover .read-more i {
  transform: translateX(5px);
}

@media (max-width: 1024px) {
  .timeline-container {
    grid-template-columns: 1fr;
    gap: 60px;
  }

  .timeline {
    padding-left: 30px;
  }
}

@media (max-width: 768px) {
  .resume-card {
    flex-direction: column;
    text-align: center;
    padding: 30px;
  }

  .category-title {
    font-size: 24px;
  }

  .timeline-header {
    flex-direction: column;
    gap: 8px;
  }

  .timeline-period {
    align-self: flex-start;
  }

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

  .research-card {
    padding: 30px;
  }

  .research-title {
    font-size: 20px;
  }
}

/* ============================================
   Competitive Programming Section Styles
   ============================================ */
.cp {
  padding: 80px 0;
  background: #020617;
  position: relative;
}

.cp::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(20, 157, 221, 0.5), transparent);
}

.platforms-section {
  margin-bottom: 80px;
}

.subsection-title {
  font-size: 28px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 30px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.subsection-title i {
  font-size: 28px;
  color: #149ddd;
}

.subsection-title::before {
  content: '';
  width: 4px;
  height: 28px;
  background: linear-gradient(135deg, #149ddd, #37b3ed);
  border-radius: 2px;
}

.platforms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 20px;
}

.platform-card {
  background: rgba(20, 157, 221, 0.1);
  border: 2px solid rgba(20, 157, 221, 0.2);
  border-radius: 12px;
  padding: 14px;
  padding-right: 50px;
  text-decoration: none;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.platform-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #149ddd, #37b3ed);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.platform-card:hover {
  border-color: rgba(20, 157, 221, 0.5);
  background: rgba(20, 157, 221, 0.15);
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(20, 157, 221, 0.3);
}

.platform-card:hover::before {
  transform: scaleX(1);
}

.platform-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.platform-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  flex-shrink: 0;
}

.platform-icon i {
  font-size: 20px;
  color: #ffffff;
}

.platform-name {
  font-size: 14px;
  font-weight: 700;
  color: #ffffff;
  margin: 0;
  flex: 1;
}

.platform-info {
  margin-bottom: 8px;
}

.platform-handle {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 6px;
}

.platform-stats {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-item {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.8);
}

.stat-item strong {
  color: #149ddd;
  font-weight: 700;
}

.platform-title {
  display: inline-block;
  font-size: 10px;
  color: #149ddd;
  background: rgba(20, 157, 221, 0.2);
  padding: 3px 8px;
  border-radius: 10px;
  font-weight: 600;
}

.platform-arrow {
  position: absolute;
  bottom: 14px;
  right: 14px;
  width: 30px;
  height: 30px;
  background: rgba(20, 157, 221, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  z-index: 10;
  flex-shrink: 0;
}

.platform-card:hover .platform-arrow {
  background: #149ddd;
  transform: scale(1.1);
}

.platform-arrow i {
  font-size: 14px;
  color: #149ddd;
  transition: color 0.3s ease;
}

.platform-card:hover .platform-arrow i {
  color: #ffffff;
}

.contests-section {
  display: flex;
  flex-direction: column;
  gap: 50px;
}

.contest-group {
  position: relative;
}

.contest-group-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 2px solid rgba(20, 157, 221, 0.3);
}

.contest-icon {
  font-size: 32px;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(20, 157, 221, 0.2);
  border-radius: 12px;
}

.contest-group-title {
  font-size: 28px;
  font-weight: 700;
  color: #ffffff;
}

.contests-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.contest-card {
  background: rgba(20, 157, 221, 0.08);
  border: 2px solid rgba(20, 157, 221, 0.2);
  border-radius: 12px;
  padding: 14px;
  padding-bottom: 40px;
  text-decoration: none;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  position: relative;
  overflow: visible;
}

.contest-card.highlight {
  border-color: rgba(255, 215, 0, 0.4);
  background: rgba(255, 215, 0, 0.05);
}

.contest-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #149ddd, #37b3ed);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.contest-card.highlight::before {
  background: linear-gradient(90deg, #FFD700, #FFA500);
}

.contest-card:hover {
  border-color: rgba(20, 157, 221, 0.5);
  background: rgba(20, 157, 221, 0.15);
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(20, 157, 221, 0.3);
}

.contest-card.highlight:hover {
  border-color: rgba(255, 215, 0, 0.6);
  box-shadow: 0 10px 30px rgba(255, 215, 0, 0.2);
}

.contest-card:hover::before {
  transform: scaleX(1);
}

.contest-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 8px;
  padding-right: 0;
  position: relative;
  z-index: 0;
}

.contest-name {
  font-size: 13px;
  font-weight: 700;
  color: #ffffff;
  margin: 0;
  flex: 1;
  line-height: 1.3;
  min-width: 0;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.contest-rank {
  font-size: 11px;
  font-weight: 700;
  color: #149ddd;
  background: rgba(20, 157, 221, 0.2);
  padding: 3px 8px;
  border-radius: 10px;
  white-space: nowrap;
  flex-shrink: 0;
  margin-left: 6px;
}

.contest-card.highlight .contest-rank {
  color: #FFD700;
  background: rgba(255, 215, 0, 0.2);
}

.contest-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 0;
  padding-right: 0;
  position: relative;
  z-index: 0;
}

.contest-team,
.contest-country {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.05);
  padding: 3px 8px;
  border-radius: 6px;
}

.contest-arrow {
  position: absolute;
  bottom: 14px;
  right: 14px;
  width: 30px;
  height: 30px;
  background: rgba(20, 157, 221, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  z-index: 10;
  flex-shrink: 0;
}

.contest-card:hover .contest-arrow {
  background: #149ddd;
  transform: scale(1.1);
}

.contest-arrow i {
  font-size: 14px;
  color: #149ddd;
  transition: color 0.3s ease;
}

.contest-card:hover .contest-arrow i {
  color: #ffffff;
}

/* ============================================
   Portfolio Section Styles
   ============================================ */
.portfolio {
  padding: 60px 0;
  background: #020617;
}

.filters {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 35px;
  flex-wrap: wrap;
  background: rgba(20, 157, 221, 0.15);
  border: 1px solid rgba(20, 157, 221, 0.3);
  border-radius: 50px;
  padding: 2px 15px;
  display: inline-flex;
  width: 100%;
  justify-content: center;
}

.filter-btn {
  cursor: pointer;
  padding: 10px 15px 8px 15px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 5px;
  transition: all 0.3s ease-in-out;
  background: none;
  border: none;
  border-radius: 5px;
}

.filter-btn:hover,
.filter-btn.active {
  color: #ffffff;
  background: rgba(20, 157, 221, 0.3);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 30px;
}

.portfolio-item {
  margin-bottom: 30px;
}

.portfolio-wrap {
  transition: 0.3s;
  position: relative;
  overflow: hidden;
  z-index: 1;
  border-radius: 8px;
  border: 1px solid rgba(20, 157, 221, 0.2);
}

.portfolio-image {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.3s;
}

.portfolio-links {
  opacity: 0;
  position: absolute;
  left: 0;
  right: 0;
  bottom: -60px;
  z-index: 3;
  transition: all ease-in-out 0.3s;
  display: flex;
  justify-content: center;
  background: rgba(20, 157, 221, 0.9);
  padding: 15px;
}

.portfolio-link {
  color: #ffffff;
  font-size: 28px;
  text-align: center;
  transition: 0.3s;
  text-decoration: none;
}

.portfolio-link:hover {
  color: #ffffff;
  transform: scale(1.1);
}

.portfolio-wrap:hover .portfolio-image {
  transform: scale(1.1);
}

.portfolio-wrap:hover .portfolio-links {
  opacity: 1;
  bottom: 0;
}

/* ============================================
   Skills Section Styles
   ============================================ */
.skills {
  padding: 80px 0;
  background: #020617;
  position: relative;
}

.skills .container {
  padding: 0 15px;
}

.skills::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(20, 157, 221, 0.5), transparent);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 15px;
  margin-top: 40px;
}

.skills-grid.core-tech-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.skill-category {
  background: rgba(20, 157, 221, 0.08);
  border: 1px solid rgba(20, 157, 221, 0.2);
  border-radius: 12px;
  padding: 20px;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

.web-tech-category {
  max-width: 300px;
  justify-self: start;
}

.skill-category:hover {
  border-color: rgba(20, 157, 221, 0.4);
  background: rgba(20, 157, 221, 0.12);
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(20, 157, 221, 0.2);
}

.category-title {
  font-size: 18px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 2px solid rgba(20, 157, 221, 0.3);
  line-height: 1.4;
}

.category-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #149ddd, #37b3ed);
  border-radius: 8px;
  font-size: 16px;
  font-weight: 700;
  color: #ffffff;
  flex-shrink: 0;
  box-shadow: 0 4px 15px rgba(20, 157, 221, 0.3);
}

.skills-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.skill-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 14px;
  transition: all 0.3s ease;
}

.skill-card:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(20, 157, 221, 0.4);
  transform: translateX(5px);
}

.skill-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.skill-icon {
  font-size: 20px;
  width: 28px;
  text-align: center;
}

.skill-name {
  flex: 1;
  font-size: 13px;
  font-weight: 600;
  color: #ffffff;
  font-family: 'Poppins', sans-serif;
}

.skill-percentage {
  display: none;
}

.progress-bar-wrap {
  background: rgba(255, 255, 255, 0.08);
  height: 8px;
  border-radius: 10px;
  overflow: hidden;
  position: relative;
}

.progress-bar {
  height: 100%;
  width: 0%;
  min-width: 0;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
  background: linear-gradient(90deg, #149ddd 0%, #37b3ed 50%, #5ac8f5 100%);
  border-radius: 10px;
  position: relative;
  overflow: hidden;
  display: block;
}

.progress-glow {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

/* Responsive Styles for CP, Portfolio, Skills */
@media (max-width: 1024px) {
  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .section-title {
    font-size: 32px;
  }

  .section-subtitle {
    font-size: 16px;
  }

  .platforms-grid,
  .contests-grid {
    grid-template-columns: 1fr;
  }

  .contest-card {
    padding-bottom: 50px;
  }

  .contest-header {
    flex-direction: column;
    gap: 8px;
  }

  .contest-name {
    max-width: 100%;
  }

  .contest-rank {
    margin-left: 0;
    align-self: flex-start;
  }

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

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