:root {
  --primary-color: #de5833;
  --primary-dark: #b8472a;
  --secondary-color: #2c3e50;
  --accent-color: #3498db;
  --success-color: #27ae60;
  --warning-color: #f39c12;
  --error-color: #e74c3c;
  --text-color: #2c3e50;
  --text-light: #7f8c8d;
  --background-light: #f8f9fa;
  --background-white: #ffffff;
  --border-color: #e9ecef;
  --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.15);
  --border-radius: 8px;
  --transition: all 0.3s ease;
}

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

body {
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu,
    Cantarell, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  scroll-behavior: smooth;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: var(--transition);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.nav-logo {
  display: flex;
  align-items: center;
  font-weight: bold;
  font-size: 1.2rem;
  color: var(--primary-color);
  text-decoration: none;
}

.logo-icon {
  font-size: 1.5rem;
  margin-right: 10px;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 30px;
}

.nav-link {
  text-decoration: none;
  color: var(--text-color);
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

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

.nav-link.github-link {
  background: var(--text-color);
  color: white;
  padding: 8px 16px;
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.nav-link.github-link:hover {
  background: var(--primary-color);
  color: white;
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.bar {
  width: 25px;
  height: 3px;
  background: var(--text-color);
  margin: 3px 0;
  transition: var(--transition);
}

/* Hero Section */
.hero {
  background: linear-gradient(
    135deg,
    var(--background-light) 0%,
    var(--background-white) 100%
  );
  padding: 120px 0 80px;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content {
  animation: fadeInUp 0.8s ease;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.2;
}

.title-main {
  display: block;
  color: var(--primary-color);
}

.title-sub {
  display: block;
  color: var(--text-color);
  font-size: 2.5rem;
}

.hero-description {
  font-size: 1.2rem;
  color: var(--text-light);
  margin-bottom: 30px;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: 20px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 30px;
  border-radius: var(--border-radius);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
  border: 2px solid transparent;
  cursor: pointer;
  font-size: 1rem;
}

.btn-primary {
  background: var(--primary-color);
  color: white;
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.btn-secondary {
  background: transparent;
  color: var(--text-color);
  border-color: var(--border-color);
}

.btn-secondary:hover {
  background: var(--text-color);
  color: white;
  transform: translateY(-2px);
}

.hero-badges {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.hero-badges img {
  height: 20px;
}

/* Terminal Demo */
.hero-demo {
  animation: fadeInRight 0.8s ease 0.3s both;
}

.terminal {
  background: #1e1e1e;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  font-family: "Monaco", "Menlo", "Ubuntu Mono", monospace;
}

.terminal-header {
  background: #2d2d2d;
  padding: 12px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.terminal-title {
  color: #fff;
  font-size: 0.9rem;
}

.terminal-buttons {
  display: flex;
  gap: 8px;
}

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

.btn-close {
  background: #ff5f56;
}
.btn-minimize {
  background: #ffbd2e;
}
.btn-maximize {
  background: #27ca3f;
}

.terminal-body {
  padding: 20px;
  color: #fff;
  font-size: 0.9rem;
  line-height: 1.4;
}

.terminal-line {
  margin-bottom: 10px;
}

.prompt {
  color: #27ca3f;
  margin-right: 8px;
}

.command {
  color: #fff;
}

.terminal-output {
  margin-top: 15px;
  padding-left: 16px;
}

.search-result {
  color: #27ca3f;
}

.result-title {
  color: #27ca3f;
}

.result-item {
  color: #ffbd2e;
}

.result-url {
  color: #3498db;
}

/* Features Section */
.features {
  padding: 80px 0;
  background: var(--background-white);
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-color);
  margin-bottom: 60px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
}

.feature-card {
  background: var(--background-white);
  padding: 40px 30px;
  border-radius: var(--border-radius);
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 20px;
  display: block;
}

.feature-card h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 15px;
  color: var(--text-color);
}

.feature-card p {
  color: var(--text-light);
  line-height: 1.6;
}

/* Installation Section */
.installation {
  padding: 80px 0;
  background: var(--background-light);
}

.installation-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.install-option {
  background: var(--background-white);
  padding: 30px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
}

.install-option h3 {
  color: var(--primary-color);
  margin-bottom: 10px;
  font-size: 1.2rem;
}

.install-option p {
  color: var(--text-light);
  margin-bottom: 20px;
}

.code-block {
  background: #1e1e1e;
  padding: 15px 20px;
  border-radius: var(--border-radius);
  position: relative;
  overflow-x: auto;
}

.code-block code {
  color: #27ca3f;
  font-family: "Monaco", "Menlo", "Ubuntu Mono", monospace;
  font-size: 0.9rem;
}

.copy-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  background: var(--primary-color);
  color: white;
  border: none;
  padding: 5px 10px;
  border-radius: 4px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: var(--transition);
}

.copy-btn:hover {
  background: var(--primary-dark);
}

/* Usage Section */
.usage {
  padding: 80px 0;
  background: var(--background-white);
}

.usage-tabs {
  max-width: 800px;
  margin: 0 auto;
}

.tab-buttons {
  display: flex;
  justify-content: center;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--border-color);
}

.tab-btn {
  background: none;
  border: none;
  padding: 15px 30px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-light);
  transition: var(--transition);
  border-bottom: 3px solid transparent;
}

.tab-btn.active,
.tab-btn:hover {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

.code-example {
  background: #1e1e1e;
  border-radius: var(--border-radius);
  overflow: hidden;
}

.code-example pre {
  padding: 30px;
  margin: 0;
  overflow-x: auto;
}

.code-example code {
  color: #fff;
  font-family: "Monaco", "Menlo", "Ubuntu Mono", monospace;
  font-size: 0.9rem;
  line-height: 1.6;
}

/* API Overview */
.api-overview {
  padding: 80px 0;
  background: var(--background-light);
}

.api-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.api-card {
  background: var(--background-white);
  padding: 30px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.api-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.api-card h3 {
  color: var(--primary-color);
  margin-bottom: 20px;
  font-size: 1.3rem;
}

.api-method code {
  background: var(--background-light);
  padding: 10px 15px;
  border-radius: 4px;
  display: block;
  font-size: 0.9rem;
  margin-bottom: 10px;
  color: var(--text-color);
  word-break: break-all;
}

.api-method p {
  color: var(--text-light);
  font-size: 0.95rem;
}

/* CTA Section */
.cta {
  padding: 80px 0;
  background: var(--primary-color);
  color: white;
  text-align: center;
}

.cta h2 {
  font-size: 2.5rem;
  margin-bottom: 20px;
}

.cta p {
  font-size: 1.2rem;
  margin-bottom: 40px;
  opacity: 0.9;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.cta .btn-primary {
  background: white;
  color: var(--primary-color);
}

.cta .btn-primary:hover {
  background: var(--background-light);
}

.cta .btn-secondary {
  border-color: white;
  color: white;
}

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

/* Footer */
.footer {
  background: var(--secondary-color);
  color: white;
  padding: 60px 0 20px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-section h3,
.footer-section h4 {
  margin-bottom: 20px;
  color: white;
}

.footer-section p {
  opacity: 0.8;
  line-height: 1.6;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 10px;
}

.footer-section ul li a {
  color: white;
  text-decoration: none;
  opacity: 0.8;
  transition: var(--transition);
}

.footer-section ul li a:hover {
  opacity: 1;
  color: var(--primary-color);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 20px;
  text-align: center;
  opacity: 0.7;
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background-color: white;
    width: 100%;
    text-align: center;
    transition: 0.3s;
    box-shadow: var(--shadow);
    padding: 20px 0;
    gap: 10px;
  }

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

  .hero-container {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .title-sub {
    font-size: 2rem;
  }

  .hero-buttons {
    justify-content: center;
  }

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

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

  .tab-buttons {
    flex-wrap: wrap;
    gap: 10px;
  }

  .tab-btn {
    padding: 10px 20px;
    font-size: 0.9rem;
  }

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

  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .section-title {
    font-size: 2rem;
  }

  .cta h2 {
    font-size: 2rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }

  .hero {
    padding: 100px 0 60px;
  }

  .hero-title {
    font-size: 2rem;
  }

  .title-sub {
    font-size: 1.5rem;
  }

  .hero-description {
    font-size: 1rem;
  }

  .feature-card {
    padding: 30px 20px;
  }

  .code-block {
    padding: 10px 15px;
  }

  .code-example pre {
    padding: 20px;
  }
}

/* Utility Classes */
.text-center {
  text-align: center;
}
.text-left {
  text-align: left;
}
.text-right {
  text-align: right;
}
.mt-1 {
  margin-top: 0.25rem;
}
.mt-2 {
  margin-top: 0.5rem;
}
.mt-3 {
  margin-top: 1rem;
}
.mt-4 {
  margin-top: 1.5rem;
}
.mt-5 {
  margin-top: 3rem;
}
.mb-1 {
  margin-bottom: 0.25rem;
}
.mb-2 {
  margin-bottom: 0.5rem;
}
.mb-3 {
  margin-bottom: 1rem;
}
.mb-4 {
  margin-bottom: 1.5rem;
}
.mb-5 {
  margin-bottom: 3rem;
}