.shell { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.site-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid var(--border); background: color-mix(in srgb, var(--background) 92%, transparent); backdrop-filter: blur(14px); }
.header-inner { min-height: 64px; display: flex; align-items: center; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 800; white-space: nowrap; }
.brand img { width: 34px; height: 34px; border-radius: 8px; }
.nav { display: flex; align-items: center; gap: 18px; margin-left: auto; overflow-x: auto; scrollbar-width: none; }
.nav a { color: var(--muted); text-decoration: none; white-space: nowrap; font-size: 14px; font-weight: 650; }
.nav a:hover, .nav a[aria-current=page] { color: var(--primary-deep); }
.theme-button, .language-button { height: 38px; flex: 0 0 auto; border: 1px solid var(--border); border-radius: 8px; color: var(--foreground); background: var(--card); cursor: pointer; }
.theme-button { width: 38px; }
.language-button { min-width: 44px; display: inline-flex; align-items: center; justify-content: center; padding: 0 10px; font-size: 12px; font-weight: 800; text-decoration: none; }
.hero { min-height: min(760px, calc(100dvh - 64px)); position: relative; overflow: hidden; border-bottom: 1px solid var(--border); background: var(--secondary); }
.hero-scene { position: absolute; inset: 0; overflow: hidden; }
.hero-scene img { width: 100%; height: 100%; display: block; object-fit: cover; object-position: center; }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, var(--background) 0%, color-mix(in srgb, var(--background) 96%, transparent) 34%, color-mix(in srgb, var(--background) 55%, transparent) 56%, transparent 82%); }
.hero-copy { position: relative; z-index: 2; width: min(560px, 86vw); padding-top: clamp(92px, 15vh, 150px); padding-bottom: 80px; }
h1 { margin-top: 14px; font-size: clamp(44px, 7vw, 82px); max-width: 720px; }
.lead { margin: 24px 0 0; color: var(--muted); font-size: clamp(18px, 2.2vw, 22px); max-width: 600px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.store-actions .button { min-width: 166px; }
.store-actions button { appearance: none; }
.download-meta { margin-top: 12px; min-height: 24px; color: var(--muted); font-size: 13px; overflow-wrap: anywhere; }
.download-layout { display: grid; grid-template-columns: minmax(0, 1fr) 116px; align-items: start; gap: 16px; margin-top: 30px; }
.download-layout .actions { margin-top: 0; }
.download-layout .store-actions .button:first-child { flex-basis: 100%; }
.download-qr { width: 116px; margin: 0; padding: 9px; border: 1px solid var(--border); border-radius: 8px; background: white; color: #111827; text-align: center; box-shadow: 0 10px 24px var(--shadow); }
.download-qr img { display: block; width: 96px; height: 96px; }
.download-qr figcaption { margin-top: 7px; font-size: 10px; font-weight: 800; line-height: 1.35; }
.band { padding: 72px 0; border-bottom: 1px solid var(--border); }
.band-title { max-width: 720px; margin-bottom: 34px; }
.band-title h2 { font-size: clamp(30px, 4vw, 48px); }
.band-title p { color: var(--muted); margin: 14px 0 0; }
.feature-list { border-bottom: 1px solid var(--border); }
.feature-story { overflow: hidden; border-top: 1px solid var(--border); }
.feature-story:first-child { border-top: 0; }
.feature-story:nth-child(even) { background: var(--secondary); }
.feature-inner { min-height: 640px; display: grid; grid-template-columns: minmax(0, .9fr) minmax(340px, 1.1fr); align-items: center; gap: clamp(48px, 8vw, 112px); padding-top: 70px; }
.feature-story:nth-child(even) .feature-copy { order: 2; }
.feature-story:nth-child(even) .phone-shot { order: 1; justify-self: start; }
.feature-copy { max-width: 500px; padding-bottom: 70px; }
.feature-index { display: block; color: var(--primary-deep); font-size: 13px; font-weight: 850; }
.feature-copy h2 { margin-top: 13px; font-size: clamp(30px, 4.2vw, 50px); }
.feature-copy p { margin: 20px 0 0; color: var(--muted); font-size: 18px; }
.phone-shot { width: min(100%, 500px); height: 570px; margin: 0; justify-self: end; overflow: hidden; display: flex; justify-content: center; align-items: flex-start; }
.phone-shot img { width: min(330px, 84%); height: auto; display: block; border: 1px solid var(--border); border-radius: 8px 8px 0 0; box-shadow: 0 22px 44px var(--shadow); }
.facts-band { background: var(--card); }
.faq-layout { display: grid; grid-template-columns: minmax(240px, .72fr) minmax(0, 1.28fr); gap: clamp(40px, 8vw, 100px); align-items: start; }
.faq-layout .band-title { position: sticky; top: 100px; }
.faq-list { border-top: 1px solid var(--border); }
.faq-list details { border-bottom: 1px solid var(--border); }
.faq-list summary { list-style: none; position: relative; padding: 22px 42px 22px 0; cursor: pointer; font-size: 18px; font-weight: 750; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 4px; top: 18px; color: var(--primary); font-size: 26px; font-weight: 400; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list p { margin: -4px 0 22px; max-width: 720px; color: var(--muted); }
.coming-soon-toast { position: fixed; z-index: 50; left: 50%; bottom: 28px; transform: translateX(-50%); width: max-content; max-width: calc(100% - 32px); padding: 11px 16px; border: 1px solid var(--border); border-radius: 8px; background: var(--foreground); color: var(--background); box-shadow: 0 14px 30px var(--shadow); font-size: 14px; font-weight: 750; }
.feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; background: var(--card); }
.feature { min-height: 190px; padding: 28px; border-right: 1px solid var(--border); }
.feature:last-child { border-right: 0; }
.feature strong { display: block; margin-bottom: 12px; font-size: 20px; }
.feature p { color: var(--muted); margin: 0; }
.feature[data-tone=fresh] { border-top: 4px solid var(--fresh); }
.feature[data-tone=chill] { border-top: 4px solid var(--chill); }
.feature[data-tone=share] { border-top: 4px solid var(--share); }
.fact-row { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; border: 1px solid var(--border); background: var(--border); border-radius: 8px; overflow: hidden; }
.fact { padding: 22px; background: var(--card); }
.fact strong { display: block; font-size: 18px; }
.fact span { color: var(--muted); font-size: 14px; }
.content-layout { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 54px; padding: 54px 0 80px; }
.side-nav { position: sticky; top: 88px; align-self: start; display: grid; gap: 5px; }
.side-nav a { padding: 8px 10px; color: var(--muted); text-decoration: none; border-radius: 6px; }
.side-nav a[aria-current=page], .side-nav a:hover { color: var(--foreground); background: var(--primary-soft); }
.prose { max-width: 780px; }
.prose h1 { font-size: clamp(36px, 5vw, 58px); margin-bottom: 18px; }
.prose h2 { margin-top: 42px; font-size: 24px; }
.prose p, .prose li, .prose h2 + div { color: var(--muted); }
.prose strong { color: var(--foreground); }
.notice { margin: 24px 0; padding: 18px 20px; border-left: 4px solid var(--expiring); background: var(--expiring-soft); color: var(--foreground); }
.site-footer { padding: 34px 0 48px; color: var(--muted); font-size: 14px; }
.footer-inner { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.footer-links { display: flex; flex-wrap: wrap; gap: 14px; }
@media (max-width: 800px) {
  .shell { width: min(100% - 28px, 680px); }
  .header-inner { gap: 12px; }
  .nav { gap: 12px; }
  .hero { min-height: 720px; }
  .hero-scene { opacity: .78; }
  .hero-scene img { object-position: 62% center; }
  .hero::after { background: linear-gradient(180deg, var(--background) 0%, color-mix(in srgb, var(--background) 95%, transparent) 50%, color-mix(in srgb, var(--background) 42%, transparent) 100%); }
  .hero-copy { padding-top: 80px; }
  .feature-inner { min-height: 560px; grid-template-columns: minmax(0, .86fr) minmax(300px, 1.14fr); gap: 30px; }
  .phone-shot { height: 500px; }
  .feature-grid, .fact-row { grid-template-columns: 1fr; }
  .feature { border-right: 0; border-bottom: 1px solid var(--border); }
  .content-layout { grid-template-columns: 1fr; gap: 24px; }
  .side-nav { position: static; display: flex; overflow-x: auto; }
}
@media (max-width: 560px) {
  .shell { width: calc(100% - 32px); }
  .site-header { position: relative; }
  .header-inner { min-height: 58px; flex-wrap: wrap; gap: 8px 10px; padding: 10px 0; }
  .brand { flex: 1 1 auto; font-size: 14px; }
  .brand img { width: 30px; height: 30px; }
  .nav { order: 2; width: 100%; margin-left: 0; justify-content: space-between; overflow: visible; }
  .nav a { min-height: 38px; display: inline-flex; align-items: center; font-size: 13px; }
  .language-button { margin-left: auto; }
  .hero { min-height: 680px; }
  .hero-copy { width: 100%; padding-top: 56px; padding-bottom: 280px; }
  h1 { font-size: 42px; overflow-wrap: anywhere; }
  .lead { margin-top: 18px; font-size: 17px; line-height: 1.55; }
  .download-layout { display: block; margin-top: 24px; }
  .actions { display: grid; grid-template-columns: 1fr; }
  .button { width: 100%; padding: 0 16px; }
  .download-qr { display: none; }
  .download-meta { font-size: 11px; line-height: 1.55; }
  .hero-scene { top: auto; height: 310px; opacity: .9; }
  .hero-scene img { object-position: 68% center; }
  .hero::after { background: linear-gradient(180deg, var(--background) 0%, color-mix(in srgb, var(--background) 96%, transparent) 58%, color-mix(in srgb, var(--background) 28%, transparent) 100%); }
  .band { padding: 52px 0; }
  .feature-inner { min-height: 0; display: flex; flex-direction: column; gap: 28px; padding-top: 52px; }
  .feature-story:nth-child(even) .feature-copy, .feature-story:nth-child(even) .phone-shot { order: initial; }
  .feature-copy { max-width: none; padding-bottom: 0; }
  .feature-copy h2 { font-size: 30px; }
  .feature-copy p { font-size: 16px; }
  .phone-shot { width: 100%; height: 430px; justify-self: center; align-items: flex-start; }
  .phone-shot img { width: min(310px, 82vw); }
  .faq-layout { display: block; }
  .faq-layout .band-title { position: static; }
  .faq-list { margin-top: 28px; }
  .band-title { margin-bottom: 24px; }
  .band-title h2 { font-size: 30px; }
  .feature { min-height: 0; padding: 22px; }
  .fact { padding: 18px; }
  .footer-inner { display: grid; gap: 18px; }
  .footer-links { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 18px; }
  .prose { min-width: 0; overflow-wrap: anywhere; }
}