@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');
:root {
  --clr-bg: #0a0a0a;
  --clr-bg-alt: #111111;
  --clr-surface: #1a1a1a;
  --clr-surface-hover: #222222;
  --clr-border: #2a2a2a;
  --clr-border-light: #333333;
  --clr-text: #f5f5f5;
  --clr-text-secondary: #a0a0a0;
  --clr-text-muted: #666666;
  --clr-accent: #ffffff;
  --clr-accent-dim: rgba(255, 255, 255, 0.08);
  --clr-gradient-start: #1a1a1a;
  --clr-gradient-end: #0a0a0a;
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-md: 1.125rem;
  --fs-lg: 1.25rem;
  --fs-xl: 1.5rem;
  --fs-2xl: 2rem;
  --fs-3xl: 2.5rem;
  --fs-4xl: 3.5rem;
  --fs-5xl: 4.5rem;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px rgba(255, 255, 255, 0.05);
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --container-max: 1200px;
  --section-padding: 120px 0;
}
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
body {
  font-family: var(--font-primary);
  background-color: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.7;
  overflow-x: hidden;
}
a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}
ul, ol { list-style: none; }
img {
  max-width: 100%;
  display: block;
}
::selection {
  background: rgba(255, 255, 255, 0.15);
  color: var(--clr-text);
}
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--clr-bg); }
::-webkit-scrollbar-thumb {
  background: var(--clr-border-light);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover { background: var(--clr-text-muted); }
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: var(--section-padding);
  position: relative;
}
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--clr-text-muted);
  margin-bottom: 16px;
}
.section-label::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--clr-text-muted);
}
.section-title {
  font-size: var(--fs-3xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-subtitle {
  font-size: var(--fs-md);
  color: var(--clr-text-secondary);
  max-width: 600px;
  line-height: 1.7;
}
.section-divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--clr-border), transparent);
  margin: 0;
  border: none;
}
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.active {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 20px 0;
  transition: all var(--transition-base);
}
.navbar.scrolled {
  padding: 12px 0;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--clr-border);
}
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-size: var(--fs-lg);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--clr-text);
}
.nav-logo span {
  color: var(--clr-text-muted);
  font-weight: 400;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  font-size: var(--fs-sm);
  font-weight: 400;
  color: var(--clr-text-secondary);
  position: relative;
  padding: 4px 0;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--clr-text);
  transition: width var(--transition-base);
}
.nav-links a:hover {
  color: var(--clr-text);
}
.nav-links a:hover::after {
  width: 100%;
}
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}
.nav-hamburger span {
  width: 24px;
  height: 2px;
  background: var(--clr-text);
  transition: all var(--transition-base);
  border-radius: 2px;
}
.nav-hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.nav-hamburger.active span:nth-child(2) {
  opacity: 0;
}
.nav-hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}
.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.03) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.hero-content {
  position: relative;
  z-index: 1;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--clr-accent-dim);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--clr-text-secondary);
  margin-bottom: 32px;
}
.hero-badge .dot {
  width: 6px;
  height: 6px;
  background: #4ade80;
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}
.hero-name {
  font-size: var(--fs-5xl);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: 8px;
}
.hero-title {
  font-size: var(--fs-2xl);
  font-weight: 300;
  color: var(--clr-text-secondary);
  letter-spacing: -0.01em;
  margin-bottom: 24px;
}
.hero-description {
  font-size: var(--fs-md);
  color: var(--clr-text-muted);
  line-height: 1.8;
  max-width: 480px;
  margin-bottom: 40px;
}
.hero-cta {
  display: flex;
  align-items: center;
  gap: 16px;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  font-family: var(--font-primary);
  font-size: var(--fs-sm);
  font-weight: 500;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
  border: none;
  position: relative;
  overflow: hidden;
}
.btn-primary {
  background: var(--clr-text);
  color: var(--clr-bg);
}
.btn-primary:hover {
  background: #e0e0e0;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.btn-outline {
  background: transparent;
  color: var(--clr-text);
  border: 1px solid var(--clr-border-light);
}
.btn-outline:hover {
  background: var(--clr-accent-dim);
  border-color: var(--clr-text-muted);
  transform: translateY(-2px);
}
.btn svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}
.btn:hover svg {
  transform: translateX(3px);
}
.hero-image-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}
.hero-image-container {
  position: relative;
  width: 380px;
  height: 380px;
}
.hero-image-container::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--clr-border-light), transparent, var(--clr-border-light));
  animation: rotate-border 8s linear infinite;
}
@keyframes rotate-border {
  to { transform: rotate(360deg); }
}
.hero-image {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  position: relative;
  z-index: 1;
  border: 3px solid var(--clr-bg);
}
.hero-image-ring {
  position: absolute;
  inset: -20px;
  border: 1px solid var(--clr-border);
  border-radius: 50%;
  animation: pulse-ring 3s ease-in-out infinite;
}
@keyframes pulse-ring {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 0.1; transform: scale(1.03); }
}
.hero-float {
  position: absolute;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: var(--fs-xs);
  font-family: var(--font-mono);
  color: var(--clr-text-secondary);
  z-index: 2;
  backdrop-filter: blur(10px);
  animation: float 4s ease-in-out infinite;
}
.hero-float-1 {
  top: 20px;
  right: -20px;
  animation-delay: 0s;
}
.hero-float-2 {
  bottom: 40px;
  left: -10px;
  animation-delay: 1.5s;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--clr-text-muted);
  font-size: var(--fs-xs);
  font-family: var(--font-mono);
  letter-spacing: 2px;
  animation: bounce-scroll 2s ease-in-out infinite;
}
.scroll-indicator .line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--clr-text-muted), transparent);
}
@keyframes bounce-scroll {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.about-text p {
  font-size: var(--fs-md);
  color: var(--clr-text-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
}
.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.stat-item {
  text-align: center;
  padding: 24px 16px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}
.stat-item:hover {
  border-color: var(--clr-border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}
.stat-number {
  font-size: var(--fs-2xl);
  font-weight: 700;
  display: block;
  margin-bottom: 4px;
}
.stat-label {
  font-size: var(--fs-xs);
  color: var(--clr-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}
.about-details {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.detail-card {
  padding: 24px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}
.detail-card:hover {
  border-color: var(--clr-border-light);
  box-shadow: var(--shadow-glow);
}
.detail-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.detail-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--clr-accent-dim);
  border-radius: var(--radius-sm);
  color: var(--clr-text);
}
.detail-icon svg {
  width: 20px;
  height: 20px;
}
.detail-card h4 {
  font-size: var(--fs-sm);
  font-weight: 600;
}
.detail-card p {
  font-size: var(--fs-sm);
  color: var(--clr-text-muted);
  line-height: 1.6;
}
.timeline {
  position: relative;
  padding-left: 40px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--clr-border-light), transparent);
}
.timeline-item {
  position: relative;
  padding-bottom: 48px;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-dot {
  position: absolute;
  left: -44px;
  top: 6px;
  width: 9px;
  height: 9px;
  background: var(--clr-text);
  border-radius: 50%;
  border: 2px solid var(--clr-bg);
  box-shadow: 0 0 0 3px var(--clr-border);
}
.timeline-date {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--clr-text-muted);
  letter-spacing: 1px;
  margin-bottom: 8px;
}
.timeline-title {
  font-size: var(--fs-lg);
  font-weight: 600;
  margin-bottom: 4px;
}
.timeline-subtitle {
  font-size: var(--fs-sm);
  color: var(--clr-text-secondary);
  margin-bottom: 12px;
}
.timeline-description {
  font-size: var(--fs-sm);
  color: var(--clr-text-muted);
  line-height: 1.7;
}
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.skill-category {
  padding: 32px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}
.skill-category:hover {
  border-color: var(--clr-border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}
.skill-category-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--clr-accent-dim);
  border-radius: var(--radius-md);
  margin-bottom: 20px;
}
.skill-category-icon svg {
  width: 24px;
  height: 24px;
  color: var(--clr-text);
}
.skill-category h3 {
  font-size: var(--fs-lg);
  font-weight: 600;
  margin-bottom: 16px;
}
.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.skill-tag {
  padding: 6px 14px;
  background: var(--clr-accent-dim);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  color: var(--clr-text-secondary);
  transition: all var(--transition-fast);
}
.skill-tag:hover {
  border-color: var(--clr-text-muted);
  color: var(--clr-text);
  background: rgba(255, 255, 255, 0.1);
}
.experience-card {
  padding: 40px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}
.experience-card .empty-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--clr-accent-dim);
  border-radius: var(--radius-lg);
}
.experience-card .empty-icon svg {
  width: 32px;
  height: 32px;
  color: var(--clr-text-muted);
}
.experience-card h3 {
  font-size: var(--fs-xl);
  font-weight: 600;
  margin-bottom: 12px;
}
.experience-card p {
  font-size: var(--fs-md);
  color: var(--clr-text-muted);
  line-height: 1.7;
  margin-bottom: 24px;
}
.experience-card .btn {
  margin: 0 auto;
}
.project-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.project-image-carousel {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  gap: 16px;
  padding-bottom: 12px;
  -webkit-overflow-scrolling: touch;
}
.project-image-carousel::-webkit-scrollbar {
  height: 6px;
}
.project-image-carousel::-webkit-scrollbar-track {
  background: var(--clr-border);
  border-radius: 4px;
}
.project-image-carousel::-webkit-scrollbar-thumb {
  background: var(--clr-primary);
  border-radius: 4px;
}
.project-image-wrapper {
  flex: 0 0 100%;
  scroll-snap-align: start;
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--clr-border);
}
.project-image-wrapper img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--transition-slow);
}
.project-image-wrapper:hover img {
  transform: scale(1.03);
}
.project-image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 10, 10, 0.6), transparent);
  pointer-events: none;
}
.project-info h3 {
  font-size: var(--fs-2xl);
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}
.project-tech span {
  padding: 4px 12px;
  background: var(--clr-accent-dim);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--clr-text-secondary);
}
.project-section {
  margin-bottom: 24px;
}
.project-section h4 {
  font-size: var(--fs-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--clr-text-muted);
  margin-bottom: 8px;
}
.project-section p {
  font-size: var(--fs-sm);
  color: var(--clr-text-secondary);
  line-height: 1.8;
}
.certificate-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px;
}
.certificate-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
}
.certificate-card:hover {
  border-color: var(--clr-border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}
.certificate-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-bottom: 1px solid var(--clr-border);
}
.certificate-content {
  padding: 24px;
}
.certificate-content h4 {
  font-size: var(--fs-base);
  font-weight: 600;
  margin-bottom: 8px;
}
.certificate-content p {
  font-size: var(--fs-sm);
  color: var(--clr-text-muted);
}
.certificate-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  font-size: var(--fs-xs);
  color: var(--clr-text-muted);
  font-family: var(--font-mono);
}
.portfolio-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 24px;
}
@media (min-width: 768px) {
  .portfolio-header {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
    align-items: flex-end;
  }
}
.portfolio-toggle {
  display: inline-flex;
  position: relative;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-full);
  padding: 4px;
}
.toggle-btn {
  position: relative;
  z-index: 2;
  background: transparent;
  border: none;
  color: var(--clr-text-secondary);
  font-family: var(--font-primary);
  font-size: var(--fs-sm);
  font-weight: 500;
  padding: 10px 24px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: color 0.3s ease;
}
.toggle-btn.active {
  color: var(--clr-bg);
}
.toggle-pill {
  position: absolute;
  top: 4px;
  left: 4px;
  bottom: 4px;
  width: calc(50% - 4px);
  background: var(--clr-text);
  border-radius: var(--radius-full);
  z-index: 1;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.portfolio-view {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s;
  pointer-events: none;
}
.portfolio-view.active {
  position: relative;
  opacity: 1;
  visibility: visible;
  pointer-events: all;
}
.slider-wrapper {
  position: relative;
}
.slider {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
}
.slider-track {
  position: relative;
  min-height: 200px;
}
.slider-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  opacity: 0;
  visibility: hidden;
  transform: translateX(30px);
  transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.5s cubic-bezier(0.4, 0, 0.2, 1),
              visibility 0.5s;
}
.slider-slide.active {
  position: relative;
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}
.slider-slide.slide-left {
  transform: translateX(-30px);
}
.slider-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 32px;
}
.slider-btn {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: 50%;
  cursor: pointer;
  color: var(--clr-text);
  transition: all var(--transition-base);
  flex-shrink: 0;
}
.slider-btn:hover {
  background: var(--clr-surface-hover);
  border-color: var(--clr-border-light);
  transform: scale(1.08);
  box-shadow: var(--shadow-sm);
}
.slider-btn:active {
  transform: scale(0.95);
}
.slider-btn svg {
  width: 20px;
  height: 20px;
}
.slider-dots {
  display: flex;
  align-items: center;
  gap: 10px;
}
.slider-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--clr-border-light);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  padding: 0;
}
.slider-dot:hover {
  background: var(--clr-text-muted);
  transform: scale(1.2);
}
.slider-dot.active {
  background: var(--clr-text);
  width: 28px;
  border-radius: var(--radius-full);
}
.slider-slide .certificate-card {
  max-width: 500px;
  margin: 0 auto;
}
.closing {
  text-align: center;
  padding: 120px 0;
}
.closing-title {
  font-size: var(--fs-4xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 20px;
}
.closing-text {
  font-size: var(--fs-md);
  color: var(--clr-text-muted);
  max-width: 500px;
  margin: 0 auto 40px;
  line-height: 1.7;
}
.closing-links {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.closing-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-full);
  font-size: var(--fs-sm);
  color: var(--clr-text-secondary);
  transition: all var(--transition-base);
}
.closing-link:hover {
  border-color: var(--clr-text-muted);
  color: var(--clr-text);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.closing-link svg {
  width: 18px;
  height: 18px;
}
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--clr-border);
}
.footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-text {
  font-size: var(--fs-xs);
  color: var(--clr-text-muted);
}
.footer-back-top {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-xs);
  color: var(--clr-text-muted);
  cursor: pointer;
  transition: color var(--transition-fast);
}
.footer-back-top:hover {
  color: var(--clr-text);
}
.footer-back-top svg {
  width: 14px;
  height: 14px;
}

@media (max-width: 1024px) {
  :root {
    --fs-5xl: 3.5rem;
    --fs-4xl: 2.5rem;
    --fs-3xl: 2rem;
    --section-padding: 80px 0;
  }
  .hero .container {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }
  .hero-description { margin: 0 auto 40px; }
  .hero-cta { justify-content: center; }
  .hero-image-container {
    width: 280px;
    height: 280px;
    margin: 0 auto;
  }
  .hero-float { display: none; }
  .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .project-showcase {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}
@media (max-width: 768px) {
  :root {
    --fs-5xl: 2.5rem;
    --fs-4xl: 2rem;
    --fs-3xl: 1.75rem;
    --section-padding: 64px 0;
  }
  .container { padding: 0 16px; }
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--clr-bg-alt);
    border-left: 1px solid var(--clr-border);
    flex-direction: column;
    justify-content: center;
    gap: 24px;
    padding: 40px;
    transition: right var(--transition-base);
  }
  .nav-links.active {
    right: 0;
  }
  .nav-hamburger { display: flex; }
  .about-stats { grid-template-columns: repeat(3, 1fr); gap: 12px; }
  .skills-grid { grid-template-columns: 1fr; }
  .certificate-grid { grid-template-columns: 1fr; }
  .closing-title { font-size: var(--fs-2xl); }
  .footer .container {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}
@media (max-width: 480px) {
  :root {
    --fs-5xl: 2rem;
  }
  .hero-cta {
    flex-direction: column;
    width: 100%;
  }
  .hero-cta .btn { width: 100%; justify-content: center; }
  .about-stats {
    grid-template-columns: 1fr;
  }
}