/* Google Fonts */
body {
  font-family: 'Poppins', Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: linear-gradient(135deg, #e3f0ff 0%, #f8fbff 100%);
  color: #222;
  transition: background 0.3s, color 0.3s;
}

:root {
  --primary: #2563eb;
  --secondary: #f1f5f9;
  --accent: #2563eb;
  --dark-bg: #181e29;
  --light-bg: #f8fbff;
  --text: #222;
  --text-light: #fff;
  --shadow: 0 4px 24px rgba(37,99,235,0.08);
}

body.dark {
  background: var(--dark-bg);
  color: var(--text-light);
}

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

/* Navbar */
nav {
  position: sticky;
  top: 0;
  width: 100%;
  background: var(--light-bg);
  box-shadow: var(--shadow);
  z-index: 100;
  transition: background 0.3s;
}
body.dark nav {
  background: #232a3b;
}
.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo {
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
}
.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links a.active,
.nav-links a:hover {
  color: var(--primary);
}
#theme-toggle {
  background: none;
  border: none;
  font-size: 1.3rem;
  cursor: pointer;
  margin-left: 1rem;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
}
.nav-toggle span {
  width: 25px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
  display: block;
}

/* Hero Section */
.hero-section {
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(135deg, #e3f0ff 0%, #f8fbff 100%);
  position: relative;
}
body.dark .hero-section {
  background: linear-gradient(135deg, #232a3b 0%, #181e29 100%);
}
.hero-content h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.hero-content .highlight {
  color: var(--primary);
}
.wave {
  display: inline-block;
  animation: wave 1.5s infinite;
}
@keyframes wave {
  0%, 60%, 100% { transform: rotate(0deg); }
  10%, 30% { transform: rotate(14deg); }
  20% { transform: rotate(-8deg); }
  40% { transform: rotate(4deg); }
  50% { transform: rotate(-4deg); }
}
.tagline {
  font-size: 1.2rem;
  color: #64748b;
  margin-bottom: 1rem;
}
.desc {
  color: #64748b;
  margin-bottom: 2rem;
}
.hero-buttons {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  margin-bottom: 2rem;
}
.btn {
  padding: 0.8rem 2rem;
  border-radius: 8px;
  border: none;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, box-shadow 0.2s;
  text-decoration: none;
  display: inline-block;
}
.btn.primary {
  background: var(--primary);
  color: #fff;
  box-shadow: var(--shadow);
}
.btn.primary:hover {
  background: #1741a6;
}
.btn.secondary {
  background: #fff;
  color: var(--primary);
  border: 2px solid var(--primary);
}
.btn.secondary:hover {
  background: var(--primary);
  color: #fff;
}
.scroll-down {
  font-size: 2rem;
  color: var(--primary);
  position: absolute;
  left: 50%;
  bottom: 2rem;
  transform: translateX(-50%);
  text-decoration: none;
  animation: bounce 1.5s infinite;
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(10px); }
}

/* About Section */
#about {
  padding: 5rem 0 3rem 0;
  background: #f8fbff;
}
body.dark #about {
  background: #232a3b;
}
.about-container {
  display: flex;
  align-items: center;
  gap: 4rem;
}
.about-img {
  position: relative;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  border: 8px solid var(--primary);
  box-shadow: 0 8px 32px rgba(37,99,235,0.18), 0 0 0 16px var(--light-bg);
  background: var(--light-bg);
  display: flex;
  align-items: center;
  justify-content: center;
}
body.dark .about-img {
  box-shadow: 0 8px 32px rgba(37,99,235,0.18), 0 0 0 16px var(--dark-bg);
  background: var(--dark-bg);
}
.about-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}
.about-content {
  max-width: 600px;
  flex: 1;
}
.about-content h2 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
  text-align: left;
}
.about-subtitle {
  color: #64748b;
  margin-bottom: 1.2rem;
  font-size: 1.1rem;
}
.about-heading {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}
.about-techs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin: 1.5rem 0 1rem 0;
}
.about-techs span {
  background: #f1f5f9;
  color: #2563eb;
  border-radius: 20px;
  padding: 0.4rem 1.2rem;
  font-size: 1rem;
  font-weight: 500;
  box-shadow: 0 2px 8px rgba(37,99,235,0.06);
}
.about-stats {
  display: flex;
  gap: 3rem;
  margin: 2rem 0 1.5rem 0;
  border-bottom: 1px solid #e5e7eb;
  padding-bottom: 1.5rem;
}
.about-stats .stat-num {
  color: #2563eb;
  font-size: 2rem;
  font-weight: 700;
  display: block;
  text-align: center;
}
.about-stats .stat-label {
  color: #64748b;
  font-size: 1rem;
  display: block;
  text-align: center;
}
.about-socials {
  display: flex;
  gap: 1rem;
  margin: 1rem 0;
}
.about-socials a img {
  width: 32px;
  height: 32px;
  filter: grayscale(1);
  transition: filter 0.2s;
}
.about-socials a:hover img {
  filter: grayscale(0);
}

/* Skills Section */
#skills {
  padding: 5rem 0 3rem 0;
  background: #fff;
}
body.dark #skills {
  background: #181e29;
}
.skills-container h2 {
  text-align: center;
  margin-bottom: 0.5rem;
}
.skills-subtitle {
  text-align: center;
  color: #64748b;
  margin-bottom: 2.5rem;
  font-size: 1.1rem;
}
.skills-grid {
  display: flex;
  gap: 3rem;
  flex-wrap: wrap;
  justify-content: center;
}
.skills-left, .skills-right {
  flex: 1 1 320px;
  min-width: 300px;
}
.skills-left h3, .skills-right h3 {
  font-size: 1.3rem;
  margin-bottom: 1.2rem;
}
.skills-list {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}
.skill {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: #f8fbff;
  border-radius: 12px;
  padding: 0.7rem 1rem;
  box-shadow: 0 2px 8px rgba(37,99,235,0.06);
}
.skill img {
  width: 28px;
  height: 28px;
}
/* Remove progress bar visuals from skills */
.skill .progress {
  display: none;
}
.percent {
  font-size: 1rem;
  color: #64748b;
  min-width: 40px;
  text-align: right;
}
.skills-right {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.skills-cards {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}
.skills-card {
  background: #f8fbff;
  border-radius: 12px;
  padding: 1rem 1.5rem;
  box-shadow: 0 2px 8px rgba(37,99,235,0.06);
}
.card-title {
  font-weight: 600;
  margin-bottom: 0.7rem;
  color: #2563eb;
}
.card-items {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  color: #222;
}
.card-items img {
  width: 24px;
  height: 24px;
  margin-right: 0.3rem;
}
.icon-bulb::before {
  content: '\1F4A1';
  margin-right: 0.3rem;
}
.icon-team::before {
  content: '\1F465';
  margin-right: 0.3rem;
}
.icon-time::before {
  content: '\23F3';
  margin-right: 0.3rem;
}

/* Projects Section */
#projects {
  padding: 5rem 0 3rem 0;
  background: #f8fbff;
}
body.dark #projects {
  background: #232a3b;
}
.projects-container h2 {
  text-align: center;
  margin-bottom: 2rem;
}
.projects-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  justify-items: center;
  align-items: stretch;
  max-width: 1200px;
  margin: 0 auto;
}
.projects-list .extra-project {
  display: none;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.5s, transform 0.5s;
}
.projects-list .extra-project.show {
  display: block;
  opacity: 1;
  transform: translateY(0);
}
@media (max-width: 1200px) {
  .projects-list {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 900px) {
  .projects-list {
    grid-template-columns: 1fr;
  }
  .project-card {
    width: 100%;
    min-width: 0;
    min-height: 0;
    max-width: 100%;
  }
}
.project-card {
  background: #fff;
  border-radius: 18px;
  box-shadow: var(--shadow);
  width: 100%;
  max-width: 320px;
  min-width: 0;
  min-height: 420px;
  padding: 1.5rem 1.2rem 1.2rem 1.2rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  transition: transform 0.2s, box-shadow 0.2s;
  cursor: pointer;
  margin-bottom: 0;
}
body.dark .project-card {
  background: #181e29;
}
body.dark .project-card img {
  background: #1e2533;
  border-color: rgba(255,255,255,0.05);
}
.project-card:hover {
  transform: translateY(-8px) scale(1.03);
  box-shadow: 0 8px 32px rgba(37,99,235,0.15);
}
.project-card img {
  width: 100%;
  height: 190px;
  object-fit: contain;
  background: #f9fbff;
  border: 1px solid rgba(0,0,0,0.03);
  border-radius: 12px;
  margin-bottom: 1rem;
  padding: 0.5rem;
}
.project-card h3 {
  margin: 0.5rem 0 0.5rem 0;
  font-size: 1.18rem;
  font-weight: 700;
  text-align: left;
  width: 100%;
}
.project-card p {
  flex: 1 1 auto;
  margin-bottom: 1rem;
  font-size: 1.01rem;
  color: #444;
  text-align: left;
  width: 100%;
}
.project-tags {
  display: flex;
  gap: 0.5rem;
  margin: 0.5rem 0 1rem 0;
  flex-wrap: wrap;
}
.project-tags span {
  background: #e0e7ff;
  color: var(--primary);
  border-radius: 6px;
  padding: 0.2rem 0.7rem;
  font-size: 0.9rem;
}
.project-links {
  display: flex;
  gap: 1rem;
  margin-top: auto;
}
.btn-link {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.2s;
}
.btn-link:hover {
  color: #1741a6;
}

/* Resume Section */
#resume {
  padding: 5rem 0 3rem 0;
  background: #fff;
}
body.dark #resume {
  background: #181e29;
}
.resume-container h2 {
  text-align: center;
  margin-bottom: 2rem;
}
.resume-timeline {
  max-width: 700px;
  margin: 0 auto;
  position: relative;
  padding-left: 30px;
}
.timeline-item {
  position: relative;
  margin-bottom: 2.5rem;
}
.timeline-dot {
  position: absolute;
  left: -15px;
  top: 8px;
  width: 16px;
  height: 16px;
  background: var(--primary);
  border-radius: 50%;
  border: 3px solid #fff;
  box-shadow: var(--shadow);
}
.timeline-content {
  background: #f1f5f9;
  padding: 1rem 1.5rem;
  border-radius: 10px;
  box-shadow: var(--shadow);
}
body.dark .timeline-content {
  background: #232a3b;
}

/* Contact Section */
#contact {
  padding: 5rem 0 3rem 0;
  background: #f8fbff;
}
body.dark #contact {
  background: #232a3b;
}
.contact-container h2 {
  text-align: center;
  margin-bottom: 2rem;
}
.contact-content {
  display: flex;
  flex-wrap: wrap;
  gap: 3rem;
  justify-content: center;
  align-items: flex-start;
}
.contact-info {
  min-width: 260px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.contact-socials {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}
.contact-socials a img {
  width: 32px;
  height: 32px;
  filter: grayscale(1);
  transition: filter 0.2s;
}
.contact-socials a:hover img {
  filter: grayscale(0);
}
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-width: 300px;
  background: #fff;
  padding: 2rem;
  border-radius: 16px;
  box-shadow: var(--shadow);
}
body.dark .contact-form {
  background: #181e29;
}
.contact-form input,
.contact-form textarea {
  padding: 0.8rem 1rem;
  border-radius: 8px;
  border: 1px solid #e5e7eb;
  font-size: 1rem;
  font-family: inherit;
  resize: none;
}
.contact-form button {
  margin-top: 0.5rem;
}
.form-message {
  font-size: 0.95rem;
  color: #64748b;
  margin-top: 0.5rem;
}

/* Footer */
footer {
  background: #181e29;
  color: #fff;
  padding: 2rem 0 1rem 0;
  text-align: center;
}
.footer-container {
  max-width: 900px;
  margin: 0 auto;
}
.footer-top {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}
.footer-logo {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary);
}
.footer-socials {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
}
.footer-socials a img {
  width: 28px;
  height: 28px;
  filter: grayscale(1);
  transition: filter 0.2s;
}
.footer-socials a:hover img {
  filter: grayscale(0);
}
.footer-links {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  margin: 1rem 0;
}
.footer-links a {
  color: #fff;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}
.footer-links a:hover {
  color: var(--primary);
}
.footer-bottom {
  font-size: 0.95rem;
  color: #cbd5e1;
}
.highlight {
  color: var(--primary);
  font-weight: 700;
}

/* Education Section */
#education {
  padding: 5rem 0 3rem 0;
  background: #fff;
}
body.dark #education {
  background: #181e29;
}
.education-container h2 {
  text-align: center;
  margin-bottom: 2rem;
}
.education-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  max-width: 700px;
  margin: 0 auto;
}
.education-card {
  background: #f1f5f9;
  border-radius: 18px;
  box-shadow: 0 4px 24px rgba(37,99,235,0.08);
  padding: 2rem 2.5rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
body.dark .education-card {
  background: #232a3b;
}
.education-card h3 {
  margin: 0 0 0.5rem 0;
  font-size: 1.3rem;
  font-weight: 700;
}
.education-card p {
  margin: 0 0 0.5rem 0;
  color: #222;
  font-size: 1.1rem;
}
body.dark .education-card p {
  color: #fff;
}
.edu-year {
  color: #2563eb;
  font-weight: 600;
  font-size: 1rem;
}
@media (max-width: 600px) {
  .education-card {
    padding: 1.2rem 1rem;
  }
}

/* Experience Section */
#resume {
  padding: 5rem 0 3rem 0;
  background: #fff;
}
body.dark #resume {
  background: #181e29;
}
.resume-container h2 {
  text-align: center;
  margin-bottom: 2rem;
}
.experience-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  max-width: 700px;
  margin: 0 auto;
}
.experience-card {
  background: #f1f5f9;
  border-radius: 18px;
  box-shadow: 0 4px 24px rgba(37,99,235,0.08);
  padding: 2rem 2.5rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
body.dark .experience-card {
  background: #232a3b;
}
.experience-card h3 {
  margin: 0 0 0.5rem 0;
  font-size: 1.3rem;
  font-weight: 700;
}
.experience-card p {
  margin: 0 0 0.5rem 0;
  color: #222;
  font-size: 1.1rem;
}
body.dark .experience-card p {
  color: #fff;
}
.experience-year {
  color: #2563eb;
  font-weight: 600;
  font-size: 1rem;
}
@media (max-width: 600px) {
  .experience-card {
    padding: 1.2rem 1rem;
  }
}

/* Certificates Section */
#certificates {
  padding: 5rem 0 3rem 0;
  background: #f8fbff;
}
body.dark #certificates {
  background: #232a3b;
}
.certificates-container h2 {
  text-align: center;
  margin-bottom: 2rem;
}
.certificates-list {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: center;
}
.certificate-card {
  background: #fff;
  border-radius: 18px;
  box-shadow: var(--shadow);
  width: 320px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  transition: transform 0.2s, box-shadow 0.2s;
  cursor: pointer;
}
body.dark .certificate-card {
  background: #181e29;
}
.certificate-card:hover {
  transform: translateY(-8px) scale(1.03);
  box-shadow: 0 8px 32px rgba(37,99,235,0.15);
}
.certificate-card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: 12px;
  margin-bottom: 1rem;
}
.certificate-card h3 {
  margin: 0.5rem 0 1rem 0;
}
.certificate-card .btn-link {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.2s;
  margin-top: auto;
}
.certificate-card .btn-link:hover {
  color: #1741a6;
}

/* Certificate Modal */
.certificate-modal {
  display: none;
  position: fixed;
  z-index: 9999;
  left: 0;
  top: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(24, 30, 41, 0.92);
  align-items: center;
  justify-content: center;
  transition: opacity 0.3s;
  opacity: 0;
  pointer-events: none;
  animation: none;
}
.certificate-modal.active {
  display: flex;
  opacity: 1;
  pointer-events: auto;
  animation: fadeIn 0.3s;
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
.modal-content {
  background: #fff;
  border-radius: 20px;
  box-shadow: 0 12px 48px rgba(37,99,235,0.18), 0 2px 16px rgba(0,0,0,0.10);
  padding: 2.5rem 3rem 2rem 3rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 95vw;
  max-height: 95vh;
  position: relative;
  border: 2px solid #2563eb;
  animation: cardPop 0.3s;
}
@keyframes cardPop {
  from { transform: scale(0.95); opacity: 0.7; }
  to { transform: scale(1); opacity: 1; }
}
body.dark .modal-content {
  background: #232a3b;
  border: 2px solid #fff;
}
.modal-content img {
  max-width: 85vw;
  max-height: 75vh;
  border-radius: 14px;
  margin-bottom: 1.5rem;
  box-shadow: 0 4px 32px rgba(37,99,235,0.13);
  background: #fff;
  object-fit: contain;
}
.modal-content h3 {
  margin: 0;
  color: #2563eb;
  text-align: center;
  font-size: 1.5rem;
  font-weight: 600;
}
.modal-close {
  position: absolute;
  top: 1.2rem;
  right: 2rem;
  font-size: 2.2rem;
  color: #2563eb;
  cursor: pointer;
  font-weight: bold;
  transition: color 0.2s, transform 0.2s;
  z-index: 2;
}
.modal-close:hover {
  color: #1741a6;
  transform: scale(1.2);
}
@media (max-width: 900px) {
  .modal-content {
    padding: 1.2rem 0.5rem 1.2rem 0.5rem;
  }
  .modal-content img {
    max-width: 98vw;
    max-height: 50vh;
  }
}
@media (max-width: 600px) {
  .modal-content {
    padding: 0.5rem 0.2rem 0.5rem 0.2rem;
    border-radius: 10px;
  }
  .modal-content img {
    max-width: 99vw;
    max-height: 35vh;
  }
  .modal-content h3 {
    font-size: 1.1rem;
  }
}

/* --- Services Section Styles --- */
.services-container {
  padding: 60px 0;
  text-align: center;
}
.services-subtitle {
  color: var(--primary);
  font-size: 1.3rem;
  margin-bottom: 2rem;
}
.services-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2.2rem;
  margin-top: 2.5rem;
}
.service-card {
  background: #fff;
  border-radius: 24px;
  box-shadow: 0 4px 32px rgba(0,0,0,0.07);
  padding: 2.2rem 2rem 2rem 2rem;
  max-width: 350px;
  min-width: 280px;
  flex: 1 1 300px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  transition: box-shadow 0.2s;
  text-align: center;
}
.service-card:hover {
  box-shadow: 0 8px 40px rgba(37,99,235,0.13);
}
.service-icon {
  width: 72px;
  height: 72px;
  margin-bottom: 1.2rem;
  border-radius: 50%;
  background: #f7f7f7;
  padding: 1rem;
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
  display: block;
}
.service-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1.1rem;
  color: #222;
  font-weight: 700;
}
.service-card p {
  color: #555;
  font-size: 1.08rem;
  margin-bottom: 2rem;
  line-height: 1.6;
}
.service-btn {
  background: var(--primary);
  color: #fff;
  border-radius: 30px;
  padding: 0.8rem 2.2rem;
  font-size: 1.1rem;
  font-weight: 600;
  border: none;
  transition: background 0.2s;
  text-decoration: none;
  display: inline-block;
}
.service-btn:hover {
  background: #1741a6;
}
@media (max-width: 900px) {
  .services-grid {
    flex-direction: column;
    gap: 1.5rem;
  }
  .service-card {
    max-width: 100%;
    min-width: 0;
  }
}

/* --- Enhanced Skills & Technologies Section --- */
.skills-groups {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: center;
  margin-top: 2.5rem;
}
.skills-group-card {
  background: #fff;
  border-radius: 18px;
  box-shadow: 0 4px 24px rgba(37,99,235,0.08);
  padding: 2rem 1.5rem 1.5rem 1.5rem;
  min-width: 220px;
  max-width: 270px;
  flex: 1 1 220px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  transition: box-shadow 0.2s;
}
.skills-group-card:hover {
  box-shadow: 0 8px 32px rgba(37,99,235,0.15);
}
.skills-group-card h3 {
  display: flex;
  align-items: center;
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1.2rem;
  color: var(--primary);
  gap: 0.6rem;
}
.skills-group-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
  width: 100%;
}
.skills-group-card li {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 1.08rem;
  color: #222;
  margin-bottom: 0.7rem;
}
.skills-icon {
  width: 28px;
  height: 28px;
  margin-right: 0.2rem;
}
.skills-icon-sm {
  width: 20px;
  height: 20px;
  display: inline-block;
}
/* Custom icon classes for non-SVG skills */
.icon-uiux::before {
  content: '\1F4BB'; /* 💻 */
  font-size: 20px;
  color: #2563eb;
}
.icon-dataviz::before {
  content: '\1F4C8'; /* 📈 */
  font-size: 20px;
  color: #2563eb;
}
.icon-powerbi::before {
  content: '\1F4CA'; /* 📊 */
  font-size: 20px;
  color: #2563eb;
}
.icon-excel::before {
  content: '\270F'; /* ✏️ */
  font-size: 20px;
  color: #2563eb;
}
.icon-c::before {
  content: 'C';
  font-size: 18px;
  font-weight: bold;
  color: #2563eb;
  font-family: 'Poppins', Arial, sans-serif;
}
@media (max-width: 1000px) {
  .skills-groups {
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
  }
  .skills-group-card {
    max-width: 100%;
    width: 100%;
    align-items: flex-start;
  }
}

/* Responsive */
@media (max-width: 900px) {
  .about-container, .skills-grid {
    flex-direction: column;
    align-items: center;
  }
  .about-content {
    max-width: 100%;
  }
  .skills-list {
    max-width: 100%;
  }
  .certificates-list {
    flex-direction: column;
    align-items: center;
  }
}
@media (max-width: 700px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    width: 100%;
    background: var(--light-bg);
    flex-direction: column;
    gap: 0;
    box-shadow: var(--shadow);
  }
  body.dark .nav-links {
    background: #232a3b;
  }
  .nav-links.open {
    display: flex;
  }
  .nav-toggle {
    display: flex;
  }
  .nav-container {
    position: relative;
  }
}
@media (max-width: 500px) {
  .hero-content h1 {
    font-size: 2rem;
  }
  .about-img img {
    width: 140px;
    height: 140px;
  }
  .project-card {
    width: 100%;
    padding: 1rem;
  }
  .contact-form {
    padding: 1rem;
  }
  .certificate-card {
    width: 100%;
    padding: 1rem;
  }
}