:root {
  --primary-color: #667eea;
  --secondary-color: #764ba2;
  --accent-color: #f093fb;
  --dark-bg: #0f172a;
  --darker-bg: #020617;
  --card-bg: #1e293b;
  --card-bg-hover: #334155;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border-color: rgba(255, 255, 255, 0.1);
  --gradient: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  --gradient-accent: linear-gradient(135deg, var(--accent-color), var(--primary-color));
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 40px rgba(102, 126, 234, 0.3);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --radius: 16px;
  --radius-sm: 8px;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --error-color: #ef4444;
}

[data-theme="light"] {
  --dark-bg: #f8fafc;
  --darker-bg: #f1f5f9;
  --card-bg: #ffffff;
  --card-bg-hover: #f8fafc;
  --text-primary: #0f172a;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border-color: rgba(0, 0, 0, 0.1);
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 40px rgba(102, 126, 234, 0.15);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family:
    "Inter",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  background: var(--dark-bg);
  color: var(--text-primary);
  line-height: 1.6;
  transition:
    background-color 0.3s ease,
    color 0.3s ease;
  overflow-x: hidden;
}

.theme-toggle {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--gradient);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: var(--shadow);
  z-index: 999;
  transition: var(--transition);
}

.theme-toggle:hover {
  transform: scale(1.1) rotate(15deg);
  box-shadow: var(--shadow-glow);
}

.loader {
  position: fixed;
  inset: 0;
  background: var(--dark-bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition:
    opacity 0.5s,
    visibility 0.5s;
}

.loader.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader-spinner {
  width: 60px;
  height: 60px;
  border: 4px solid rgba(102, 126, 234, 0.2);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.loader-text {
  margin-top: 1rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  letter-spacing: 2px;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes pulse {
  0%,
  100% {
    opacity: 0.5;
  }
  50% {
    opacity: 1;
  }
}

.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 1000;
  padding: 1rem 0;
  transition: var(--transition);
  border-bottom: 1px solid var(--border-color);
}

[data-theme="light"] .navbar {
  background: rgba(248, 250, 252, 0.85);
}

.navbar.scrolled {
  padding: 0.5rem 0;
  box-shadow: var(--shadow);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--text-primary);
  text-decoration: none;
}

.nav-brand img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--primary-color);
  transition: var(--transition);
}

.nav-brand:hover img {
  transform: rotate(10deg) scale(1.1);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2.5rem;
}

.nav-menu a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  position: relative;
  transition: var(--transition);
  font-size: 0.95rem;
}

.nav-menu a::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient);
  transition: var(--transition);
}

.nav-menu a:hover {
  color: var(--primary-color);
}

.nav-menu a:hover::after {
  width: 100%;
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
  padding: 5px;
}

.bar {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  border-radius: 3px;
  transition: var(--transition);
}

.hamburger.active .bar:nth-child(1) {
  transform: rotate(-45deg) translate(-5px, 6px);
}

.hamburger.active .bar:nth-child(2) {
  opacity: 0;
}

.hamburger.active .bar:nth-child(3) {
  transform: rotate(45deg) translate(-5px, -6px);
}

.header-section {
  margin-top: 80px;
  padding: 4rem 0;
  background: var(--darker-bg);
  border-bottom: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
}

.header-section::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: var(--gradient);
  opacity: 0.05;
  border-radius: 50%;
  filter: blur(80px);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  position: relative;
  z-index: 1;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.logo-container img {
  width: 70px;
  height: 70px;
  border-radius: 16px;
  object-fit: cover;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 3px solid transparent;
  background: var(--gradient);
  padding: 3px;
}

.logo-container img:hover {
  transform: rotate(5deg) scale(1.05);
  box-shadow: var(--shadow-glow);
}

.brand-text h1 {
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.02em;
}

.brand-text p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-top: 0.25rem;
}

.profile-section {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.profile-image {
  width: 130px;
  height: 130px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid transparent;
  background: var(--gradient);
  padding: 4px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.profile-image:hover {
  transform: scale(1.05) rotate(3deg);
  box-shadow: var(--shadow-glow);
}

.hero-section {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(0.3);
  animation: zoomSlow 20s infinite alternate;
}

[data-theme="light"] .hero-background {
  filter: brightness(0.7);
}

@keyframes zoomSlow {
  from {
    transform: scale(1);
  }
  to {
    transform: scale(1.1);
  }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 2rem;
  max-width: 900px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(102, 126, 234, 0.1);
  border: 1px solid var(--primary-color);
  border-radius: 50px;
  font-size: 0.9rem;
  color: var(--primary-color);
  margin-bottom: 1.5rem;
  backdrop-filter: blur(10px);
}

.hero-content h2 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 800;
  margin-bottom: 1rem;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.subtitle {
  font-size: 1.75rem;
  color: var(--accent-color);
  margin-bottom: 1.5rem;
  font-weight: 600;
}

.hero-content p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-group {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2.5rem;
  background: var(--gradient);
  color: white;
  text-decoration: none;
  border-radius: 50px;
  font-weight: 600;
  transition: var(--transition);
  box-shadow: var(--shadow);
  border: 2px solid transparent;
  font-size: 1rem;
}

.cta-button:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
  border-color: var(--accent-color);
}

.cta-button.secondary {
  background: transparent;
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
}

.cta-button.secondary:hover {
  background: var(--primary-color);
  color: white;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-label {
  display: inline-block;
  padding: 0.25rem 1rem;
  background: rgba(102, 126, 234, 0.1);
  color: var(--primary-color);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: 1rem;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  letter-spacing: -0.02em;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.2rem;
  max-width: 600px;
  margin: 0 auto;
}

.skills-section {
  padding: 6rem 2rem;
  background: var(--darker-bg);
  position: relative;
}

.skills-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}

.skill-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  transition: var(--transition);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
}

.skill-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

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

.skill-card:hover {
  transform: translateY(-10px);
  background: var(--card-bg-hover);
  box-shadow: var(--shadow-glow);
  border-color: var(--primary-color);
}

.skill-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--darker-bg);
  transition: var(--transition);
}

.skill-card:hover .skill-icon {
  transform: scale(1.1);
}

.skill-icon img {
  width: 50px;
  height: 50px;
  object-fit: contain;
}

.skill-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.skill-level {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1rem;
}

.skill-dots {
  display: flex;
  gap: 0.25rem;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border-color);
  transition: var(--transition);
}

.dot.active {
  background: var(--primary-color);
  box-shadow: 0 0 10px var(--primary-color);
}

.skill-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

.projects-section {
  padding: 6rem 2rem;
  background: var(--dark-bg);
}

.projects-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2.5rem;
}

.project-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-glow);
  border-color: var(--primary-color);
}

.project-image-container {
  position: relative;
  overflow: hidden;
  height: 250px;
}

.project-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.project-card:hover .project-image {
  transform: scale(1.1);
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: var(--gradient);
  opacity: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.project-card:hover .project-overlay {
  opacity: 0.9;
}

.project-overlay-content {
  text-align: center;
  color: white;
  transform: translateY(20px);
  transition: transform 0.3s ease;
}

.project-card:hover .project-overlay-content {
  transform: translateY(0);
}

.project-link-text{
  text-decoration: none;
  color: white;
}

.project-link-text:hover {
  color: var(--accent-color);
}

.project-content {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-content h3 {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.project-content p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.6;
  flex: 1;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.tech-tag {
  padding: 0.35rem 0.85rem;
  background: rgba(102, 126, 234, 0.1);
  color: var(--primary-color);
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
  border: 1px solid rgba(102, 126, 234, 0.2);
  transition: var(--transition);
}

.tech-tag:hover {
  background: var(--primary-color);
  color: white;
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
  margin-top: auto;
}

.project-link:hover {
  color: var(--accent-color);
  gap: 1rem;
}

.services-section {
  padding: 6rem 2rem;
  background: var(--darker-bg);
}

.services-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.service-card {
  background: var(--card-bg);
  padding: 2.5rem;
  border-radius: var(--radius);
  text-align: center;
  transition: var(--transition);
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
}

.service-card::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 0;
  background: var(--gradient);
  opacity: 0.1;
  transition: height 0.3s ease;
}

.service-card:hover::after {
  height: 100%;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-glow);
  border-color: var(--primary-color);
}

.service-icon {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  display: block;
  transition: var(--transition);
}

.service-card:hover .service-icon {
  transform: scale(1.2) rotate(5deg);
}

.service-card h3 {
  font-size: 1.35rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
  position: relative;
  z-index: 1;
}

.service-card p {
  color: var(--text-secondary);
  position: relative;
  z-index: 1;
}

.stats-section {
  padding: 4rem 2rem;
  background: var(--dark-bg);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.stats-grid {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.stat-item h4 {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.stat-item p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.contact-enhanced {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem;
  transition: var(--transition);
  border: 1px solid var(--border-color);
  margin-top: 1rem;
}

.contact-enhanced .contact-container {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.contact-enhanced h2 {
  font-size: 2.2rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.01em;
  margin-bottom: 0.75rem;
}

.contact-enhanced p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 1.8rem;
}

.contact-enhanced .contact-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--gradient);
  color: white;
  text-decoration: none;
  font-weight: 600;
  padding: 0.85rem 2rem;
  border-radius: 60px;
  transition: var(--transition);
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.2);
  margin-bottom: 1rem;
}

.contact-enhanced .contact-btn:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
  border-color: var(--accent-color);
}

.comment-form-modern {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 2px dashed var(--border-color);
  text-align: left;
}

.form-title-modern {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
}

.inline-row-modern {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.inline-row-modern .input-group-modern {
  flex: 1;
}

.input-group-modern {
  margin-bottom: 1.5rem;
}

.input-group-modern label {
  display: block;
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.input-group-modern input,
.input-group-modern textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  font-size: 1rem;
  font-family: inherit;
  background: var(--darker-bg);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  color: var(--text-primary);
  resize: vertical;
}

.input-group-modern input:focus,
.input-group-modern textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.2);
}

.input-group-modern textarea {
  min-height: 130px;
}

.send-message-btn-modern {
  background: var(--gradient);
  color: white;
  border: none;
  padding: 0.9rem 1.8rem;
  font-weight: 700;
  font-size: 1rem;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  justify-content: center;
  width: 100%;
  box-shadow: var(--shadow);
}

.send-message-btn-modern:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
  filter: brightness(1.05);
}

.send-message-btn-modern:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.status-message-modern {
  margin-top: 1.2rem;
  padding: 0.8rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--card-bg-hover);
  color: var(--text-secondary);
  transition: 0.2s;
}

.status-message-modern.success {
  background: rgba(16, 185, 129, 0.15);
  color: var(--success-color);
  border-left: 4px solid var(--success-color);
}

.status-message-modern.error {
  background: rgba(239, 68, 68, 0.15);
  color: var(--error-color);
  border-left: 4px solid var(--error-color);
}

.status-message-modern.loading {
  background: rgba(102, 126, 234, 0.15);
  color: var(--primary-color);
}

.required-star {
  color: var(--error-color);
  margin-left: 2px;
}

small {
  font-size: 0.7rem;
  color: var(--text-muted);
  display: block;
  margin-top: 0.4rem;
}

@media (max-width: 550px) {
  .contact-enhanced {
    padding: 1.5rem;
  }
  .contact-enhanced h2 {
    font-size: 1.8rem;
  }
  .inline-row-modern {
    flex-direction: column;
    gap: 0.8rem;
  }
}

[data-theme="light"] .contact-enhanced {
  background: var(--card-bg);
  box-shadow: var(--shadow);
}
[data-theme="light"] .input-group-modern input,
[data-theme="light"] .input-group-modern textarea {
  background: #ffffff;
}
.contact-section {
  background: transparent;
}
.contact-enhanced .contact-btn {
  background: var(--gradient);
}
.send-message-btn-modern {
  background: var(--gradient);
}

.footer-section {
  background: var(--darker-bg);
  padding: 3rem 2rem;
  text-align: center;
  border-top: 1px solid var(--border-color);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-content p {
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.footer-email {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
  display: inline-block;
  margin: 1rem 0;
}

.footer-email:hover {
  color: var(--accent-color);
  transform: translateY(-2px);
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 1.5rem;
}

.social-links a {
  width: 45px;
  height: 45px;
  border-radius: 50%;
  background: var(--card-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition);
  border: 1px solid var(--border-color);
  font-weight: 600;
  font-size: 0.9rem;
}

.social-links a:hover {
  background: var(--gradient);
  color: white;
  transform: translateY(-5px);
  border-color: transparent;
  box-shadow: var(--shadow-glow);
}

.scroll-top {
  position: fixed;
  bottom: 2rem;
  left: 2rem;
  width: 45px;
  height: 45px;
  border-radius: 50%;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 998;
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top:hover {
  background: var(--gradient);
  color: white;
  transform: translateY(-3px);
  border-color: transparent;
}

@media (max-width: 968px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background: var(--dark-bg);
    width: 100%;
    text-align: center;
    transition: 0.3s;
    padding: 2rem 0;
    border-bottom: 1px solid var(--border-color);
    gap: 1.5rem;
  }

  [data-theme="light"] .nav-menu {
    background: var(--dark-bg);
  }

  .nav-menu.active {
    left: 0;
  }

  .header-content {
    flex-direction: column;
    text-align: center;
  }

  .profile-section {
    flex-direction: column;
  }

  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .theme-toggle {
    bottom: 1rem;
    right: 1rem;
    width: 45px;
    height: 45px;
  }

  .hero-content h2 {
    font-size: 2rem;
  }
}

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

  .cta-group {
    flex-direction: column;
    width: 100%;
  }

  .cta-button {
    width: 100%;
    justify-content: center;
  }
}