:root {
  color-scheme: dark;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Apple SD Gothic Neo", "Noto Sans KR", "Helvetica Neue", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: #000; }
body { margin: 0; min-width: 320px; background: #000; color: #f5f5f7; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 2px solid #fff; outline-offset: 3px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: 10px; left: 10px; z-index: 100; padding: 10px 14px; border-radius: 999px; background: #fff; color: #000; transform: translateY(-160%); }
.skip-link:focus { transform: none; }

.preorder-header { position: fixed; inset: 0 0 auto; z-index: 50; border-bottom: 1px solid #202020; background: rgba(0,0,0,.88); -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px); }
.preorder-nav { width: min(1180px, calc(100% - 48px)); height: 68px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; }
.preorder-brand { display: flex; align-items: center; }
.preorder-brand img { display: block; width: 68px; height: auto; }
.nav-cta { min-height: 38px; padding: 0 17px; border: 1px solid #3a3a3c; border-radius: 999px; display: inline-flex; align-items: center; color: #f5f5f7; font-size: 13px; font-weight: 650; }
.nav-cta:hover { border-color: #f5f5f7; background: #f5f5f7; color: #000; }

.preorder-hero { min-height: 100svh; padding: 150px 24px 90px; display: grid; place-items: center; text-align: center; }
.hero-content { width: min(960px, 100%); }
.hero-kicker, .section-kicker { margin: 0 0 22px; color: #86868b; font-size: 14px; font-weight: 650; }
.preorder-hero h1 { margin: 0; font-size: clamp(64px, 8vw, 108px); line-height: .98; font-weight: 720; letter-spacing: -.07em; }
.hero-lead { margin: 32px 0 0; color: #a1a1a6; font-size: clamp(18px, 2vw, 23px); line-height: 1.55; letter-spacing: -.015em; }
.preorder-form { width: min(540px, 100%); margin: 44px auto 0; }
.form-shell { height: 62px; padding: 6px 6px 6px 20px; border: 1px solid #3a3a3c; border-radius: 18px; display: flex; align-items: center; gap: 12px; background: #111; }
.form-shell:focus-within { border-color: #8e8e93; }
.form-shell input { min-width: 0; flex: 1; border: 0; outline: 0; background: transparent; color: #fff; font-size: 16px; }
.form-shell input::placeholder { color: #6e6e73; }
.form-shell button { height: 48px; min-width: 88px; padding: 0 20px; border: 0; border-radius: 13px; background: #f5f5f7; color: #000; font-size: 15px; font-weight: 700; cursor: pointer; }
.form-shell button:hover { background: #d9d9dd; }
.form-shell button:disabled { opacity: .72; cursor: wait; }
.preorder-form.is-complete .form-shell { border-color: #6e6e73; }
.form-status { min-height: 22px; margin: 13px 0 0; color: #a1a1a6; font-size: 14px; font-weight: 620; }
.form-status.is-success, .form-status.is-error { color: #f5f5f7; }
.form-note { margin: 2px 0 0; color: #6e6e73; font-size: 12px; line-height: 1.5; }

.story-section { min-height: 72svh; padding: 150px max(24px, calc((100vw - 1180px) / 2)); display: flex; align-items: center; border-top: 1px solid #202020; }
.story-copy { width: 100%; }
.story-copy h2, .final-cta h2 { margin: 0; font-size: clamp(52px, 7vw, 96px); line-height: 1.02; font-weight: 710; letter-spacing: -.065em; }

.feature-section { width: min(1180px, calc(100% - 48px)); margin: 0 auto; padding: 128px 0; border-top: 1px solid #202020; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.feature-section article { min-height: 260px; padding: 4px 42px; border-left: 1px solid #2c2c2e; }
.feature-section article:first-child { padding-left: 0; border-left: 0; }
.feature-section article:last-child { padding-right: 0; }
.feature-section article > span { color: #6e6e73; font-size: 12px; font-weight: 650; }
.feature-section h3 { max-width: 280px; margin: 64px 0 18px; font-size: 28px; line-height: 1.25; font-weight: 680; letter-spacing: -.045em; word-break: keep-all; }
.feature-section p { max-width: 285px; margin: 0; color: #86868b; font-size: 15px; line-height: 1.65; word-break: keep-all; }

.final-cta { min-height: 68svh; padding: 120px 24px; border-top: 1px solid #202020; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; }
.final-logo { width: 78px; height: auto; margin-bottom: 44px; }
.final-cta a { margin-top: 42px; min-height: 48px; padding: 0 24px; border-radius: 999px; display: inline-flex; align-items: center; background: #f5f5f7; color: #000; font-size: 14px; font-weight: 700; }
.final-cta a:hover { background: #d9d9dd; }
.preorder-footer { width: min(1180px, calc(100% - 48px)); min-height: 104px; margin: 0 auto; border-top: 1px solid #202020; display: flex; align-items: center; justify-content: space-between; gap: 24px; color: #6e6e73; font-size: 12px; }
.preorder-footer nav { display: flex; gap: 22px; }
.preorder-footer a:hover { color: #f5f5f7; }

@media (max-width: 760px) {
  .preorder-nav { width: calc(100% - 36px); height: 62px; }
  .preorder-brand img { width: 61px; }
  .nav-cta { min-height: 34px; padding-inline: 13px; font-size: 12px; }
  .preorder-hero { min-height: 94svh; padding: 128px 18px 72px; }
  .preorder-hero h1 { font-size: clamp(51px, 15vw, 74px); line-height: 1; }
  .hero-lead { margin-top: 26px; font-size: 17px; }
  .preorder-form { margin-top: 38px; }
  .form-shell { height: 58px; padding-left: 16px; border-radius: 16px; }
  .form-shell button { height: 46px; min-width: 76px; padding-inline: 15px; border-radius: 12px; }
  .story-section { min-height: 64svh; padding: 110px 20px; }
  .story-copy h2, .final-cta h2 { font-size: clamp(48px, 14vw, 68px); }
  .feature-section { width: calc(100% - 40px); padding: 72px 0; grid-template-columns: 1fr; }
  .feature-section article { min-height: 0; padding: 38px 0; border-left: 0; border-top: 1px solid #2c2c2e; }
  .feature-section article:first-child { padding-top: 0; border-top: 0; }
  .feature-section h3 { max-width: none; margin: 28px 0 12px; font-size: 25px; }
  .feature-section p { max-width: none; }
  .final-cta { min-height: 62svh; }
  .preorder-footer { width: calc(100% - 40px); padding: 28px 0; align-items: flex-start; flex-direction: column; }
  .preorder-footer nav { flex-wrap: wrap; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }