body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: #000;
  color: #e0e0e0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 0 2rem;
  height: 48px;
  display: flex;
  align-items: center;
  background: rgba(10, 10, 10, 0.8);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  opacity: 0;
  transition: opacity 0.3s ease;
}

header.visible {
  opacity: 1;
}

.logo {
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: #fff;
}

main {
  flex: 1;
  padding: 2rem;
}

/* Hero */
.hero {
  text-align: center;
  max-width: 600px;
  margin: 3rem auto 8rem;
}

.hero h1 {
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  font-weight: 800;
  letter-spacing: 0.08em;
  color: #fff;
  margin-bottom: 1.5rem;
}

.hero p {
  font-size: 1.1rem;
  line-height: 1.8;
  color: #888;
}

/* Divider */
.divider {
  width: 40px;
  height: 1px;
  background: #333;
  margin: 0 auto 6rem;
}

/* App Card */
.app-card {
  max-width: 480px;
  margin: 0 auto 6rem;
  text-align: center;
}

.app-icon {
  width: 96px;
  height: 96px;
  border-radius: 22px;
  margin-bottom: 1.5rem;
  margin-inline: auto;
}

.app-name {
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1rem;
}

.app-description {
  font-size: 0.9rem;
  line-height: 1.9;
  color: #888;
  margin-bottom: 1.5rem;
}

.badges {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
}

.badge {
  display: inline-block;
  background: #1a1a1a;
  border: 1px solid #282828;
  border-radius: 6px;
  padding: 0.3rem 0.75rem;
  font-size: 0.75rem;
  color: #888;
}

/* Store Links */
.store-links {
  margin-top: 1.5rem;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 0.75rem;
}

.store-links a {
  display: inline-block;
}

.store-links img {
  height: 40px;
}

.store-links a[href*="play.google.com"] img {
  margin-top: -6px;
  height: 52px;
}

/* App Hero */
.app-hero {
  display: flex;
  gap: 0;
  margin-top: 40px;
  margin-bottom: 40px;
}

.app-hero .wrap {
  flex: 1;
  padding: 32px;
  background: #1d1d1f;
  border-radius: 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.app-hero .wrap .tips {
  color: #1d79dd;
  text-align: center;
  font-size: 18px;
  padding-bottom: 24px;
}

.app-hero .wrap h2 {
  text-align: center;
  font-size: 48px;
  font-weight: 800;
  padding-bottom: 24px;
  color: #fff;
}

.app-hero .wrap .app-icon-row {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  padding-bottom: 24px;
}

.app-hero .wrap .app-icon-row img {
  width: 64px;
  height: 64px;
  border-radius: 14px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.app-hero .wrap .description {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5em;
  color: #e0e0e0;
}

.app-hero .wrap .store-links {
  margin-top: 24px;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 0.75rem;
}

.app-hero .wrap .store-links a {
  display: inline-block;
}

.app-hero .wrap .store-links img {
  height: 40px;
}

.app-hero .wrap .store-links a[href*="play.google.com"] img {
  margin-top: -6px;
  height: 52px;
}

.app-hero figure {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
}

.phone-mockup {
  position: relative;
  width: 260px;
  aspect-ratio: 366 / 917;
}

.phone-mockup .screen {
  position: absolute;
  inset: 0;
  -webkit-mask-image: url('/images/mock-mask.png');
  mask-image: url('/images/mock-mask.png');
  -webkit-mask-size: 100% 100%;
  mask-size: 100% 100%;
  perspective: 605px;
}

.phone-mockup .screen img {
  position: absolute;
  left: 10.66%;
  top: 0.44%;
  width: 96.35%;
  height: 99.13%;
  display: block;
  transform: rotateY(16deg);
  transform-origin: left center;
}

.phone-mockup .frame {
  position: absolute;
  inset: 0;
  background: url('/images/mock.png') center / 100% 100% no-repeat;
}

@media screen and (max-width: 736px) {
  .app-hero {
    display: block;
    margin: 0;
    margin-bottom: 20px;
  }

  .app-hero .wrap {
    padding: 20px 14px;
  }

  .app-hero .wrap h2 {
    font-size: 36px;
  }

  .app-hero .wrap .description {
    font-size: 16px;
    line-height: 1.5em;
  }

  .app-hero figure {
    padding: 20px;
  }

  .phone-mockup {
    width: 260px;
    margin: 0 auto;
  }
}

/* Company Info */
.company-info {
  max-width: 480px;
  margin: 0 auto 6rem;
  text-align: center;
}

.company-info h2 {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.1em;
  margin-bottom: 2rem;
}

.company-info dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.75rem 2rem;
  text-align: left;
  font-size: 0.85rem;
}

.company-info dt {
  color: #555;
  font-weight: 600;
}

.company-info dd {
  color: #aaa;
}

footer {
  padding: 2rem;
  text-align: center;
}

footer p {
  font-size: 0.8rem;
  color: #444;
}