/* ============================================
   Almio — Shared Styles
   ============================================ */

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: #ffffff;
  color: #1a1a1a;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

/* --- Header --- */
.header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid #f0f0f0;
  z-index: 100;
}

.header-inner {
  max-width: 680px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.header-brand {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.header-nav {
  display: flex;
  gap: 24px;
}

.header-nav a {
  font-size: 0.9rem;
  color: #666666;
  transition: color 0.2s;
}

.header-nav a:hover {
  color: #000000;
}

/* --- Container --- */
.container {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Hero (トップページ) --- */
.hero {
  min-height: calc(100vh - 57px);
  min-height: calc(100dvh - 57px);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.hero-brand {
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: #000000;
  margin-bottom: 16px;
}

.hero-tagline {
  font-size: clamp(1.1rem, 3vw, 1.4rem);
  font-weight: 500;
  color: #333333;
  margin-bottom: 12px;
}

.hero-description {
  font-size: clamp(0.9rem, 2.5vw, 1.05rem);
  color: #666666;
  margin-bottom: 48px;
}

/* --- Page Section --- */
.page-section {
  padding: 120px 0;
  text-align: center;
}

.page-title {
  font-size: clamp(1.4rem, 4vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.page-sub {
  font-size: 1rem;
  color: #666666;
  margin-bottom: 48px;
}

/* --- Card --- */
.card {
  display: block;
  border: 1px solid #e8e8e8;
  border-radius: 12px;
  padding: 40px 32px;
  text-align: left;
  transition: border-color 0.2s, box-shadow 0.2s;
  max-width: 480px;
  margin: 0 auto;
}

.card:hover {
  border-color: #cccccc;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
}

.card-name {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.card-desc {
  font-size: 0.95rem;
  color: #666666;
  margin-bottom: 20px;
  line-height: 1.7;
}

.card-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: #000000;
}

.card-link::after {
  content: ' →';
}

/* --- Detail (アプリ詳細) --- */
.detail {
  padding: 120px 0 80px;
  text-align: center;
}

.detail-name {
  font-size: clamp(1.6rem, 5vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 32px;
}

.detail-body p {
  font-size: clamp(0.95rem, 2.5vw, 1.1rem);
  color: #333333;
  margin-bottom: 20px;
  line-height: 1.8;
}

.detail-body p:last-child {
  font-weight: 600;
  color: #000000;
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-primary {
  background-color: #000000;
  color: #ffffff;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 14px 40px;
  border-radius: 100px;
  border: 2px solid #000000;
}

.btn-primary:hover {
  background-color: #ffffff;
  color: #000000;
}

/* --- Footer --- */
.footer {
  padding: 80px 0;
  text-align: center;
}

.footer-brand {
  font-size: 1.1rem;
  font-weight: 600;
  color: #000000;
  margin-bottom: 8px;
}

.footer-copy {
  font-size: 0.85rem;
  color: #999999;
}

.privacy {
  margin-top: 24px;
  font-size: 0.8rem;
  color: #666;
}

.privacy summary {
  cursor: pointer;
  color: #555;
}

.privacy p {
  margin: 8px 0;
  line-height: 1.7;
}

/* --- Spacing helper --- */
.mt-48 {
  margin-top: 48px;
}

/* --- Responsive --- */
@media (max-width: 600px) {
  .hero {
    min-height: calc(100vh - 53px);
    min-height: calc(100dvh - 53px);
  }

  .hero-brand {
    font-size: 2.8rem;
  }

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

  .detail {
    padding: 80px 0 60px;
  }

  .card {
    padding: 28px 24px;
  }

  .btn-primary {
    padding: 13px 36px;
    font-size: 0.9rem;
  }

  .container {
    padding: 0 20px;
  }

  .header-inner {
    padding: 14px 20px;
    gap: 24px;
  }

  .footer {
    padding: 60px 0;
  }
}