@import url('https://api.fontshare.com/v2/css?f[]=satoshi@1,2&display=swap');

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

body {
  font-family: 'Satoshi', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.landing-page {
  min-height: 100vh;
  background-color: #DEE2E7;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 24px;
  padding-bottom: 48px;
}

.logo-container {
  width: 100%;
  display: flex;
  justify-content: center;
  padding-top: 64px;
}

.logo {
  width: 128px;
  height: 128px;
}

.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 16px;
  max-width: 448px;
}

.app-title {
  color: #3E4169;
  font-size: 48px;
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1;
}

.app-description {
  color: #3E4169;
  font-size: 18px;
  margin-bottom: 32px;
  line-height: 1.6;
}

.features {
  margin-bottom: 48px;
  width: 100%;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
}

.feature-bullet {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #ED5C40;
  margin-top: 8px;
  flex-shrink: 0;
}

.feature-text {
  color: #3E4169;
  text-align: left;
  font-size: 16px;
}

.download-buttons {
  width: 100%;
  max-width: 384px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.store-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  padding: 16px 24px;
  border-radius: 16px;
  text-decoration: none;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.app-store-button {
  background-color: #3E4169;
  color: white;
}

.app-store-button:hover {
  background-color: #2d3050;
}

.play-store-button {
  background-color: #ED5C40;
  color: white;
}

.play-store-button:hover {
  background-color: #d64e34;
}

.button-icon {
  width: 24px;
  height: 24px;
}

.button-text {
  text-align: left;
}

.button-label {
  font-size: 12px;
  opacity: 0.9;
  display: block;
}

.button-store-name {
  font-size: 18px;
  font-weight: 600;
  display: block;
}

.manual-link-container {
  margin-top: 24px;
  text-align: center;
}

.manual-link {
  color: #3E4169;
  font-size: 14px;
  text-decoration: underline;
  transition: opacity 0.2s ease;
}

.manual-link:hover {
  opacity: 0.7;
}

/* Manual Page */
.manual-page {
  min-height: 100vh;
  background-color: #DEE2E7;
  padding: 24px;
  padding-bottom: 48px;
}

.manual-nav {
  max-width: 720px;
  margin: 0 auto;
  padding: 8px 0;
}

.manual-nav-bottom {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid #c0c4c9;
}

.back-link {
  color: #3E4169;
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  transition: opacity 0.2s ease;
}

.back-link:hover {
  opacity: 0.7;
}

.manual-content {
  max-width: 720px;
  margin: 0 auto;
  padding-top: 32px;
}

.manual-title {
  color: #3E4169;
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 4px;
  line-height: 1.2;
}

.manual-subtitle {
  color: #3E4169;
  font-size: 18px;
  opacity: 0.7;
  margin-bottom: 16px;
}

.manual-intro {
  color: #3E4169;
  font-size: 16px;
  line-height: 1.7;
  margin-bottom: 32px;
}

.manual-section {
  margin-bottom: 32px;
}

.manual-section h2 {
  color: #3E4169;
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 16px;
  padding-top: 8px;
}

.manual-section h3 {
  color: #3E4169;
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  margin-top: 20px;
}

.manual-section p {
  color: #3E4169;
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 12px;
}

.manual-section ul {
  list-style: none;
  padding: 0;
  margin-bottom: 12px;
}

.manual-section ul li {
  color: #3E4169;
  font-size: 15px;
  line-height: 1.7;
  padding-left: 20px;
  margin-bottom: 8px;
  position: relative;
}

.manual-section ul li::before {
  content: "\2022";
  color: #ED5C40;
  font-weight: bold;
  position: absolute;
  left: 0;
}

.pro-tip {
  color: #ED5C40;
  font-size: 15px;
  line-height: 1.7;
  padding: 12px 16px;
  background-color: rgba(237, 92, 64, 0.08);
  border-radius: 8px;
  margin-top: 12px;
}

@media (max-width: 640px) {
  .app-title {
    font-size: 40px;
  }

  .app-description {
    font-size: 16px;
  }

  .manual-title {
    font-size: 28px;
  }

  .manual-section h2 {
    font-size: 20px;
  }
}