:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --bg-card: #16161f;
  --text-primary: #f0f0f5;
  --text-secondary: #8a8a9a;
  --text-muted: #5a5a6a;
  --accent: #6366f1;
  --accent-light: #818cf8;
  --accent-glow: rgba(99, 102, 241, 0.15);
  --border: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);
  --success: #22c55e;
  --warning: #f59e0b;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg);
}
::-webkit-scrollbar-thumb {
  background: var(--text-muted);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

::selection {
  background: var(--accent);
  color: white;
}

.noise {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.25rem 2rem;
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: all 0.3s ease;
}

nav.scrolled {
  padding: 0.75rem 2rem;
  background: rgba(10, 10, 15, 0.95);
}

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

.logo {
  font-family: "JetBrains Mono", monospace;
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--text-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: none;
  border: none;
  cursor: pointer;
}

.logo-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(1.2);
  }
}

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

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.3s ease;
}

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

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

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 8rem 2rem 4rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(99, 102, 241, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99, 102, 241, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 40%, transparent 70%);
}

.hero-orb {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%,
  100% {
    transform: translate(-50%, -50%) scale(1);
  }
  50% {
    transform: translate(-50%, -55%) scale(1.1);
  }
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  font-family: "JetBrains Mono", monospace;
}

.hero-badge .status-dot {
  width: 6px;
  height: 6px;
  background: var(--success);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.hero h1 .gradient {
  background: linear-gradient(
    135deg,
    var(--accent) 0%,
    var(--accent-light) 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
  font-family: inherit;
}

.btn-primary {
  background: var(--accent);
  color: white;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--border-hover);
  background: var(--bg-elevated);
  transform: translateY(-2px);
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: 0.8rem;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%,
  100% {
    transform: translateX(-50%) translateY(0);
  }
  50% {
    transform: translateX(-50%) translateY(-10px);
  }
}

section {
  padding: 6rem 2rem;
  position: relative;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
}

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

.section-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.85rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.section-label::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--accent);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.about-text {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.8;
}

.about-text p {
  margin-bottom: 1.5rem;
}

.about-text strong {
  color: var(--text-primary);
  font-weight: 600;
}

.info-cards {
  display: grid;
  gap: 1rem;
}

.info-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.5rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  transition: all 0.3s ease;
}

.info-card:hover {
  border-color: var(--border-hover);
  transform: translateX(4px);
}

.info-card-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-glow);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}

.info-card-content h4 {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
  font-weight: 500;
}

.info-card-content p {
  font-size: 1rem;
  color: var(--text-primary);
  font-weight: 600;
}

.skills-section {
  background: var(--bg-elevated);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.skill-category {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2rem;
  transition: all 0.3s ease;
}

.skill-category:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.skill-category-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.skill-category-icon {
  width: 36px;
  height: 36px;
  background: var(--accent-glow);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.skill-category h3 {
  font-size: 1.1rem;
  font-weight: 600;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skill-tag {
  padding: 0.4rem 0.9rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-secondary);
  transition: all 0.2s;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.8rem;
}

.skill-tag:hover {
  border-color: var(--accent);
  color: var(--accent-light);
  background: var(--accent-glow);
}

.skill-tag.primary {
  background: var(--accent-glow);
  border-color: var(--accent);
  color: var(--accent-light);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 24px;
  overflow: hidden;
  transition: all 0.4s ease;
  position: relative;
}

.project-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-8px);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
}

.project-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}

.project-card:hover::before {
  opacity: 1;
}

.project-visual {
  height: 200px;
  background: linear-gradient(135deg, var(--bg-elevated) 0%, var(--bg) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.project-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at 50% 50%,
    var(--accent-glow) 0%,
    transparent 70%
  );
}

.project-icon-large {
  width: 64px;
  height: 64px;
  background: var(--accent-glow);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  position: relative;
  z-index: 1;
}

.project-content {
  padding: 2rem;
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.project-title {
  font-size: 1.25rem;
  font-weight: 700;
}

.project-status {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.2);
  border-radius: 100px;
  font-size: 0.75rem;
  color: var(--success);
  font-weight: 600;
}

.status-dot-inline {
  width: 6px;
  height: 6px;
  background: var(--success);
  border-radius: 50%;
  display: inline-block;
}

.project-description {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

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

.project-tech span {
  padding: 0.3rem 0.7rem;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 6px;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: "JetBrains Mono", monospace;
}

.github-card {
  background: linear-gradient(
    135deg,
    var(--bg-elevated) 0%,
    var(--bg-card) 100%
  );
  border: 1px dashed var(--border);
  border-radius: 24px;
  padding: 3rem 2rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  transition: all 0.3s ease;
  text-decoration: none;
  color: inherit;
}

.github-card:hover {
  border-color: var(--accent);
  background: var(--accent-glow);
}

.github-card-icon {
  width: 56px;
  height: 56px;
  background: var(--bg-card);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
}

.github-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
}

.github-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.achievements-section {
  background: var(--bg-elevated);
}

.achievements-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.achievement-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2rem;
  display: flex;
  gap: 1.25rem;
  transition: all 0.3s ease;
}

.achievement-card:hover {
  border-color: var(--warning);
  transform: translateY(-4px);
}

.achievement-icon {
  width: 48px;
  height: 48px;
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.2);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--warning);
  flex-shrink: 0;
}

.achievement-content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.achievement-content p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

.interests-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.interest-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2rem;
  text-align: center;
  transition: all 0.3s ease;
}

.interest-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
}

.interest-icon {
  width: 56px;
  height: 56px;
  background: var(--accent-glow);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin: 0 auto 1.25rem;
}

.interest-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.interest-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.contact-section {
  background: var(--bg-elevated);
  position: relative;
  overflow: hidden;
}

.contact-section::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 50%);
  opacity: 0.5;
  pointer-events: none;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  position: relative;
  z-index: 1;
}

.contact-info h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.contact-info > p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.7;
}

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

.contact-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  text-decoration: none;
  color: var(--text-primary);
  transition: all 0.3s ease;
}

.contact-link:hover {
  border-color: var(--accent);
  background: var(--accent-glow);
  transform: translateX(4px);
}

.contact-link-icon {
  width: 40px;
  height: 40px;
  background: var(--bg-elevated);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}

.contact-link-content {
  flex: 1;
}

.contact-link-content h4 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.15rem;
}

.contact-link-content p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.contact-link-arrow {
  color: var(--text-muted);
  transition: transform 0.2s;
}

.contact-link:hover .contact-link-arrow {
  transform: translateX(4px);
  color: var(--accent);
}

.languages-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 2rem;
}

.languages-card h4 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.language-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
}

.language-item:last-child {
  border-bottom: none;
}

.language-name {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 500;
}

.flag {
  font-size: 1.2rem;
}

.language-level {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-family: "JetBrains Mono", monospace;
}

.language-level .level-bar {
  display: inline-block;
  width: 60px;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  margin-left: 0.5rem;
  vertical-align: middle;
  overflow: hidden;
}

.language-level .level-fill {
  display: block;
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
}

footer {
  padding: 3rem 2rem;
  border-top: 1px solid var(--border);
  text-align: center;
}

footer p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

footer .heart {
  color: #ef4444;
  display: inline-block;
  animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
  0%,
  100% {
    transform: scale(1);
  }
  14% {
    transform: scale(1.15);
  }
  28% {
    transform: scale(1);
  }
  42% {
    transform: scale(1.15);
  }
}

.scroll-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all 0.3s ease;
  z-index: 200;
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top:hover {
  background: var(--accent-light);
  transform: translateY(-4px);
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

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

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

  .hero-cta {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    justify-content: center;
  }

  section {
    padding: 4rem 1.5rem;
  }

  .scroll-top {
    bottom: 1.5rem;
    right: 1.5rem;
  }
}

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.8s ease,
    transform 0.8s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 99;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
}

.mobile-menu.active {
  display: flex;
}

.mobile-menu a {
  color: var(--text-primary);
  text-decoration: none;
  font-size: 1.5rem;
  font-weight: 600;
}

.mobile-menu-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  z-index: 1000;
  padding: 0.75rem 1.25rem;
  background: var(--accent);
  color: #fff;
  border-radius: 10px;
  font-weight: 600;
  text-decoration: none;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 1rem;
}

:focus-visible {
  outline: 2px solid var(--accent-light);
  outline-offset: 3px;
  border-radius: 4px;
}