:root {
  --bg: #ffffff;
  --text: #1a2c3e;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-soft: #eff6ff;
  --subtext: #64748b;
  --border: #e2e8f0;
  --card: #ffffff;
  --terminal-bg: #f8fafc;
  --terminal-header: #f1f5f9;
  --terminal-border: #e2e8f0;
  --terminal-text: #1e293b;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.03);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.05);
}

[data-theme="dark"] {
  --bg: #0f172a;
  --text: #f1f5f9;
  --accent: #60a5fa;
  --accent-hover: #3b82f6;
  --accent-soft: #1e293b;
  --subtext: #94a3b8;
  --border: #334155;
  --card: #1e293b;
  --terminal-bg: #0a0e1a;
  --terminal-header: #11141f;
  --terminal-border: #1e2436;
  --terminal-text: #e4e4e7;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.25);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.3);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.35);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}

.snow {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.snowflake {
  position: absolute;
  color: #3b82f6;
  user-select: none;
  pointer-events: none;
  opacity: 0.12;
  animation: fall linear infinite;
}

[data-theme="dark"] .snowflake {
  color: #60a5fa;
  opacity: 0.15;
}

@keyframes fall {
  0% {
    transform: translateY(-10vh) rotate(0deg);
  }
  100% {
    transform: translateY(100vh) rotate(360deg);
  }
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 2;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 32px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.3px;
}

.logo span {
  color: var(--accent);
}

.logo-accent {
  color: var(--text);
}

.nav-container {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-links {
  display: flex;
  gap: 28px;
}

.nav-links a {
  text-decoration: none;
  color: var(--subtext);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s;
}

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

.theme-toggle {
  background: var(--accent-soft);
  border: none;
  border-radius: 50%;
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--accent);
  font-size: 1.1rem;
  transition: all 0.2s;
}

.theme-toggle:hover {
  background: var(--accent);
  color: white;
  transform: scale(1.05);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  width: 32px;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
}

.mobile-menu-btn span {
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: 0.2s;
}

.mobile-menu-btn span:nth-child(2) {
  width: 80%;
  align-self: flex-end;
}

.hero {
  padding: 100px 32px;
  position: relative;
}

.hero-left {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 60px;
  max-width: 1120px;
  margin: 0 auto;
}

.hero-text {
  flex: 1;
}

.hero-badge {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 24px;
}

.hero-text h1 {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -1.5px;
  line-height: 1.2;
  margin-bottom: 20px;
}

.gradient-text {
  color: var(--accent);
}

.hero-text p {
  font-size: 1.1rem;
  color: var(--subtext);
  margin-bottom: 36px;
  max-width: 460px;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  padding: 12px 28px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  padding: 12px 28px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-secondary:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.hero-visual {
  flex: 1;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 480px;
}

.terminal {
  background: var(--terminal-bg);
  border-radius: 12px;
  width: 100%;
  max-width: 520px;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--terminal-border);
  transition: all 0.3s ease;
  animation: terminalFloat 4s ease-in-out infinite;
  position: relative;
  z-index: 10;
}

@keyframes terminalFloat {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-6px); }
}

.terminal-header {
  background: var(--terminal-header);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--terminal-border);
}

.terminal-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.terminal-dot.red { background: #ff5f56; }
.terminal-dot.yellow { background: #ffbd2e; }
.terminal-dot.green { background: #27c93f; }

.terminal-title {
  margin-left: 8px;
  font-size: 0.7rem;
  color: var(--subtext);
  font-family: monospace;
}

.terminal-body {
  padding: 24px;
  background: var(--terminal-bg);
}

.terminal-body pre {
  margin: 0;
  font-family: 'Fira Code', 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  line-height: 1.7;
}

.terminal-body code {
  color: var(--terminal-text);
}

.terminal-keyword {
  color: #c792ea;
}

.terminal-key {
  color: #82aaff;
}

.terminal-string {
  color: #c3e88d;
}

.terminal-bool {
  color: #ffcb6b;
}

.terminal-number {
  color: #f78c6c;
}

.floating-card {
  position: absolute;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow-md);
  z-index: 15;
  white-space: nowrap;
  transition: all 0.3s ease;
}

.floating-card:hover {
  transform: scale(1.05);
  border-color: var(--accent);
  box-shadow: var(--shadow-lg);
}

.floating-card i {
  font-size: 1.1rem;
  color: var(--accent);
}

.floating-card span {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text);
}

.card-1 {
  top: 0;
  left: -30px;
  animation: floatCard1 4s ease-in-out infinite;
}

.card-2 {
  bottom: 60px;
  right: -30px;
  animation: floatCard2 4.5s ease-in-out infinite;
}

.card-3 {
  top: 50%;
  right: -40px;
  transform: translateY(-50%);
  animation: floatCard3 5s ease-in-out infinite;
}

@keyframes floatCard1 {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-10px) rotate(2deg); }
}

@keyframes floatCard2 {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-12px) rotate(-2deg); }
}

@keyframes floatCard3 {
  0%, 100% { transform: translateY(-50%) rotate(0deg); }
  50% { transform: translateY(calc(-50% - 10px)) rotate(3deg); }
}

.scroll-indicator {
  text-align: center;
  margin-top: 80px;
  color: var(--subtext);
  font-size: 0.75rem;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(5px); }
}

.scroll-line {
  width: 1px;
  height: 30px;
  background: var(--accent);
  margin: 8px auto 0;
  opacity: 0.4;
}

.repo-section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header h2 {
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}

.section-header p {
  color: var(--subtext);
  font-size: 1rem;
}

.repo-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

.repo-item {
  background: var(--card);
  border-radius: 20px;
  padding: 32px 28px;
  text-align: center;
  border: 1px solid var(--border);
  transition: all 0.25s;
  box-shadow: var(--shadow-sm);
  position: relative;
}

.repo-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}

.repo-icon {
  width: 64px;
  height: 64px;
  background: var(--accent-soft);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  transition: transform 0.2s;
}

.repo-item:hover .repo-icon {
  transform: scale(1.05);
}

.repo-icon i {
  font-size: 1.8rem;
  color: var(--accent);
}

.repo-item h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.repo-item p {
  color: var(--subtext);
  margin-bottom: 24px;
  font-size: 0.9rem;
  line-height: 1.6;
}

.btn-repo {
  background: transparent;
  border: 1px solid var(--border);
  padding: 8px 22px;
  border-radius: 8px;
  font-weight: 500;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-repo:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.made-by {
  margin-top: 20px;
  font-size: 0.75rem;
  color: var(--subtext);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

#contact {
  padding: 80px 0;
  background: var(--bg);
  position: relative;
}

.contact-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 60px;
  max-width: 1120px;
  margin: 0 auto;
  position: relative;
  z-index: 10;
}

.contact-left {
  flex: 1;
}

.contact-header {
  margin-bottom: 16px;
}

.contact-header h2 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text);
  margin-bottom: 8px;
}

.contact-header p {
  font-size: 1.2rem;
  color: var(--subtext);
}

.contact-description {
  margin-bottom: 32px;
}

.contact-description p {
  color: var(--subtext);
  font-size: 1rem;
  line-height: 1.6;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-link-item {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 20px;
  transition: all 0.2s;
  text-decoration: none;
  cursor: pointer;
}

.contact-link-item:hover {
  border-color: var(--accent);
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
}

.contact-link-item i:first-child {
  font-size: 1.4rem;
  color: var(--accent);
}

.contact-link-item span {
  flex: 1;
  font-size: 0.9rem;
  color: var(--text);
  font-family: monospace;
  letter-spacing: 0.3px;
}

.contact-link-item i:last-child {
  font-size: 0.9rem;
  color: var(--subtext);
  transition: all 0.2s;
}

.contact-link-item:hover i:last-child {
  color: var(--accent);
  transform: translateX(4px);
}

.contact-right {
  flex: 1;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 400px;
}

.contact-terminal-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
}

.contact-terminal {
  background: var(--terminal-bg);
  border-radius: 12px;
  width: 100%;
  max-width: 420px;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--terminal-border);
  transition: all 0.3s ease;
  animation: terminalFloat 4s ease-in-out infinite;
  position: relative;
  z-index: 10;
}

.contact-terminal .terminal-header {
  background: var(--terminal-header);
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--terminal-border);
}

.contact-terminal .terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.contact-terminal .terminal-dot.red { background: #ff5f56; }
.contact-terminal .terminal-dot.yellow { background: #ffbd2e; }
.contact-terminal .terminal-dot.green { background: #27c93f; }

.contact-terminal .terminal-title {
  margin-left: 8px;
  font-size: 0.7rem;
  color: var(--subtext);
  font-family: monospace;
}

.contact-terminal .terminal-body {
  padding: 20px;
  background: var(--terminal-bg);
}

.contact-terminal .terminal-body pre {
  margin: 0;
  font-family: 'Fira Code', 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  line-height: 1.8;
}

.contact-terminal .terminal-body code {
  color: var(--terminal-text);
}

.contact-terminal .terminal-keyword {
  color: #c792ea;
}

.contact-terminal .terminal-key {
  color: #82aaff;
}

.contact-terminal .terminal-string {
  color: #c3e88d;
}

.contact-terminal .terminal-bool {
  color: #ffcb6b;
}

.contact-terminal .terminal-number {
  color: #f78c6c;
}

.contact-card-1 {
  top: -20px;
  left: -30px;
  animation: floatCard1 4s ease-in-out infinite;
}

.contact-card-2 {
  bottom: -10px;
  right: -30px;
  animation: floatCard2 4.5s ease-in-out infinite;
}

.contact-card-3 {
  top: 50%;
  right: -40px;
  transform: translateY(-50%);
  animation: floatCard3 5s ease-in-out infinite;
}

.contact-bubble {
  position: absolute;
  background: var(--accent-soft);
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
}

.contact-bubble-1 {
  width: 120px;
  height: 120px;
  bottom: 20px;
  left: 10%;
  opacity: 0.4;
  animation: bubbleFloat 8s ease-in-out infinite;
}

.contact-bubble-2 {
  width: 80px;
  height: 80px;
  top: 40px;
  right: 15%;
  opacity: 0.3;
  animation: bubbleFloat 6s ease-in-out infinite reverse;
}

.contact-bubble-3 {
  width: 60px;
  height: 60px;
  bottom: 60px;
  right: 20%;
  opacity: 0.35;
  animation: bubbleFloat 7s ease-in-out infinite 1s;
}

@keyframes terminalFloat {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-6px); }
}

@keyframes floatCard1 {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-10px) rotate(2deg); }
}

@keyframes floatCard2 {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-12px) rotate(-2deg); }
}

@keyframes floatCard3 {
  0%, 100% { transform: translateY(-50%) rotate(0deg); }
  50% { transform: translateY(calc(-50% - 10px)) rotate(3deg); }
}

@keyframes bubbleFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-20px) scale(1.05); }
}

@media (max-width: 900px) {
  .contact-grid {
    flex-direction: column;
    text-align: center;
    gap: 50px;
  }
  
  .contact-left {
    text-align: center;
  }
  
  .contact-description p {
    margin-left: auto;
    margin-right: auto;
  }
  
  .contact-links {
    max-width: 400px;
    margin: 0 auto;
  }
  
  .contact-card-1, .contact-card-2, .contact-card-3 {
    display: none;
  }
}

@media (max-width: 700px) {
  .contact-terminal {
    max-width: 100%;
  }
  
  .contact-terminal .terminal-body pre {
    font-size: 0.65rem;
  }
  
  .contact-link-item {
    padding: 12px 16px;
  }
  
  .contact-link-item span {
    font-size: 0.8rem;
  }
}

@media (max-width: 480px) {
  .contact-header h2 {
    font-size: 2rem;
  }
  
  .contact-description p {
    font-size: 0.9rem;
  }
  
  .contact-link-item span {
    font-size: 0.75rem;
  }
}

footer {
  padding: 50px 0 30px;
  border-top: 1px solid var(--border);
  margin-top: 0;
  background: var(--bg);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 30px;
  margin-bottom: 40px;
}

.footer-brand span {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
}

.footer-brand p {
  color: var(--subtext);
  font-size: 0.85rem;
  margin-top: 6px;
}

.footer-nav {
  display: flex;
  gap: 32px;
}

.footer-nav a {
  text-decoration: none;
  color: var(--subtext);
  font-size: 0.9rem;
  transition: color 0.2s;
}

.footer-nav a:hover {
  color: var(--accent);
}

.footer-bottom {
  text-align: center;
  padding-top: 25px;
  border-top: 1px solid var(--border);
  color: var(--subtext);
  font-size: 0.8rem;
}

@media (max-width: 900px) {
  .hero-left {
    flex-direction: column;
    text-align: center;
    gap: 50px;
  }
  
  .hero-text p {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .hero-visual {
    width: 100%;
    max-width: 420px;
    margin: 0 auto;
  }
  
  .card-1, .card-2, .card-3 {
    display: none;
  }
}

@media (max-width: 700px) {
  header {
    padding: 16px 20px;
  }
  
  .nav-links {
    display: none;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
  
  .nav-links.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    padding: 24px;
    border-bottom: 1px solid var(--border);
    gap: 20px;
    text-align: center;
  }
  
  .hero {
    padding: 60px 20px;
  }
  
  .hero-text h1 {
    font-size: 2.2rem;
  }
  
  .section-header h2 {
    font-size: 1.8rem;
  }
  
  .terminal-body pre {
    font-size: 0.65rem;
  }
  
  .contact-link-item {
    padding: 12px 16px;
  }
  
  .contact-link-item span {
    font-size: 0.8rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 18px;
  }
  
  .btn-primary, .btn-secondary {
    padding: 10px 22px;
    font-size: 0.85rem;
  }
  
  .repo-item {
    padding: 24px 20px;
  }
  
  .contact-header h2 {
    font-size: 2rem;
  }
  
  .contact-description p {
    font-size: 0.9rem;
  }
  
  .contact-link-item span {
    font-size: 0.75rem;
  }
}