/* reset */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

/* text */

.title-description {
  font-family: "Arial", sans-serif;
  color: #fff;
  font-size: 24px;
  text-align: center;
}

.title-license {
  font-family: "Arial", sans-serif;
  color: #1e293b;
  font-size: 32px;
  text-align: center;
  margin-top: 0;
  margin-bottom: 24px;
  border-bottom: 2px solid #e2e8f0;
  padding-bottom: 16px;
}

.title-code-example {
  font-family: "Bakbak One", sans-serif;
  color: #475569;
  font-size: 32px;
  padding: 20px;
  text-align: center;
  margin-top: 0;
  margin-bottom: 16px;
}

.code-showcase {
  padding: 80px 20px;
  background-color: #f8fafc;
}

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

  display: flex;
  align-items: center;
  gap: 60px;
  flex-wrap: wrap;
}

.showcase-text {
  flex: 1;
  min-width: 300px;
}

.showcase-text p {
  font-family: system-ui, -apple-system, sans-serif;
  color: #475569;
  line-height: 1.6;
  font-size: 18px;
}

.feature-list {
  font-family: system-ui, -apple-system, sans-serif;
  color: #334155;
  line-height: 1.8;
  font-size: 16px;
  padding-left: 20px;
  margin-top: 20px;
}

.code-container {
  flex: 1;
  min-width: 750px;
  width: 100%;

  background: #282c34;
  border-radius: 12px;

  overflow: hidden;

  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.code-container pre {
  margin: 0;
  padding: 24px;
  overflow-x: auto;
}

.code-container code {
  font-family: "Fira Code", "Courier New", Courier, monospace;
  font-size: 14px;
  line-height: 1.6;
}

.download-cta {
  padding: 100px 20px;
  background-color: #0f172a;
  color: white;
  text-align: center;
}

.download-cta h2 {
  font-family: "Bakbak One", sans-serif;
  font-size: 36px;
  margin-bottom: 15px;
  margin-top: 0;
}

.download-cta p {
  color: #94a3b8;
  font-size: 18px;
  margin-bottom: 40px;
}

.button-group {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 15px 30px;
  font-size: 18px;
  font-weight: bold;
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn-primary {
  background-color: #3b82f6;
  color: white;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
  background-color: #2563eb;
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: rgba(255, 255, 255, 0.1);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.features-section {
  padding: 80px 20px;
  background-color: #ffffff;
  text-align: center;
}

.section-title {
  font-family: "Bakbak One", sans-serif;
  color: #475569;
  font-size: 36px;
  margin-bottom: 10px;
  margin-top: 0;
}

.section-subtitle {
  color: #64748b;
  font-size: 18px;
  margin-bottom: 50px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  max-width: 1000px;
  margin: 0 auto;
}

.feature-card {
  background: #f8fafc;
  padding: 30px 20px;
  border-radius: 12px;
  border: 1px solid #e2e8f0;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  text-align: center;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
}

.feature-card h3 {
  font-family: system-ui, -apple-system, sans-serif;
  color: #1e293b;
  margin-top: 0;
  margin-bottom: 10px;
}

.feature-card p {
  color: #475569;
  font-size: 15px;
  line-height: 1.6;
  margin: 0;
}

/* top bar */

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: #fff;
  padding: 15px 30px;
}

.topbar-logo-img {
  width: 160px;
  height: auto;
}

.topbar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.topbar-links {
  display: flex;
  list-style: none;
}

.topbar-links li {
  margin-left: 30px;
}

.topbar-links a {
  text-decoration: none;
  font-size: 24px;
  transition: color 0.3s;
  font-family: "Bakbak One", sans-serif;
  color: #342a9b;
}

.topbar-links a:hover {
  color: #2563eb;
}

/* background */

.hero {
  background: linear-gradient(135deg, #342a9b 0%, #2563eb 50%, #3b82f6 100%);
  color: white;
  min-height: 85vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 40px 20px;
}

.hero-license {
  background: linear-gradient(135deg, #342a9b 0%, #2563eb 50%, #3b82f6 100%);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
  font-family: system-ui, -apple-system, sans-serif;
}

.hero-docs {
  background: linear-gradient(135deg, #342a9b 0%, #2563eb 50%, #3b82f6 100%);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
  font-family: system-ui, -apple-system, sans-serif;
}

.license-card {
  background: #ffffff;
  max-width: 650px;
  width: 100%;
  margin: 0 auto;
  padding: 40px;

  border-radius: 16px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);

  color: #334155;
  line-height: 1.6;
}

.docs-card {
  background: #ffffff;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 40px;

  border-radius: 16px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);

  color: #334155;
  line-height: 1.6;
}

.title-docs {
  color: #1e293b;
  margin-top: 0;
  margin-bottom: 24px;
  font-size: 32px;
  border-bottom: 2px solid #e2e8f0;
  padding-bottom: 16px;
}

.copyright-box {
  background: #f1f5f9;
  color: #475569;
  font-weight: bold;
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 24px;
  font-family: monospace;
}

.license-card p {
  margin-bottom: 20px;
}

.license-rules {
  margin: 0;
  padding-left: 24px;
}

.license-rules li {
  margin-bottom: 16px;
}

/* images */

.white-image {
  width: 500px;
  height: auto;
  display: block;
  margin: 0 auto;
  filter: brightness(0) invert(1);
}

/* mobile */

@media (max-width: 900px) {
  .code-container {
    min-width: 0;
    width: 100%;
  }

  .showcase-container {
    gap: 30px;
  }
}

@media (max-width: 700px) {
  .topbar {
    flex-direction: column;
    gap: 15px;
    padding: 15px 20px;
  }

  .topbar-links {
    flex-wrap: wrap;
    justify-content: center;
  }

  .topbar-links li {
    margin-left: 0;
    margin: 0 12px;
  }

  .topbar-links a {
    font-size: 18px;
  }

  .white-image {
    width: 80%;
    max-width: 320px;
  }

  .title-description {
    font-size: 20px;
  }

  .hero,
  .hero-license,
  .hero-docs {
    min-height: auto;
    padding: 40px 15px;
  }

  .code-showcase,
  .features-section,
  .download-cta {
    padding: 50px 15px;
  }

  .showcase-container {
    flex-direction: column;
  }

  .code-container {
    min-width: 0;
  }

  .code-container pre {
    padding: 16px;
  }

  .code-container code {
    font-size: 12px;
  }

  .title-code-example,
  .section-title {
    font-size: 26px;
  }

  .download-cta h2 {
    font-size: 28px;
  }

  .button-group {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    text-align: center;
  }

  .license-card,
  .docs-card {
    padding: 24px;
  }

  .title-license,
  .title-docs {
    font-size: 24px;
  }
}

@media (max-width: 400px) {
  .topbar-links a {
    font-size: 16px;
  }

  .title-description {
    font-size: 18px;
  }
}