:root {
  --ink: #171717;
  --paper: #f7f5f0;
  --white: #ffffff;
  --lime: #c7ff3d;
  --coral: #ff6b5d;
  --cobalt: #3155ff;
  --line: #d8d6cf;
  --muted: #686868;
  --container: 1180px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: Pretendard, "Noto Sans KR", Arial, sans-serif; }
body, button, a, input { letter-spacing: 0; }
img { display: block; max-width: 100%; }
a { color: inherit; }
button { color: inherit; font: inherit; }
.container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
.skip-link { position: fixed; left: 12px; top: -80px; z-index: 1000; padding: 12px 16px; background: var(--ink); color: var(--white); }
.skip-link:focus { top: 12px; }

.age-notice { min-height: 40px; background: var(--ink); color: var(--white); transition: min-height .2s ease, opacity .2s ease; }
.age-notice .container { min-height: 40px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.age-notice p { margin: 0; font-size: 12px; }
.age-confirm { display: inline-flex; align-items: center; gap: 7px; min-height: 32px; padding: 0; border: 0; background: transparent; color: var(--lime); cursor: pointer; font-size: 12px; font-weight: 800; }
.age-notice.is-confirmed { min-height: 32px; opacity: .82; }
.age-notice.is-confirmed .container { min-height: 32px; }
.age-notice.is-confirmed .age-confirm { color: var(--white); }

.site-header { position: relative; z-index: 20; border-bottom: 1px solid currentColor; }
.header-inner { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.wordmark { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 950; }
.wordmark-mark { display: grid; width: 30px; height: 30px; place-items: center; background: var(--ink); color: var(--white); font-size: 12px; }
.wordmark-copy { font-size: 16px; }
.header-nav { display: flex; align-items: center; gap: 26px; }
.header-nav a { text-decoration: none; font-size: 13px; font-weight: 700; }
.header-nav a:hover { text-decoration: underline; text-underline-offset: 5px; }
.header-cta { display: inline-flex; min-height: 44px; align-items: center; gap: 8px; padding: 0 15px; background: var(--ink); color: var(--white); text-decoration: none; font-size: 13px; font-weight: 800; }

.icon { display: inline-flex; width: 20px; height: 20px; flex: 0 0 20px; align-items: center; justify-content: center; line-height: 0; }
.icon > svg { display: block; width: 18px; height: 18px; margin: 0; }
.icon-sm { width: 16px; height: 16px; flex-basis: 16px; }
.icon-sm > svg { width: 15px; height: 15px; }

.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 11px; font-weight: 850; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 22px; height: 2px; background: currentColor; }
.btn { display: inline-flex; min-height: 50px; align-items: center; justify-content: center; gap: 9px; padding: 0 20px; border: 1px solid var(--ink); background: var(--ink); color: var(--white); text-decoration: none; font-size: 14px; font-weight: 850; cursor: pointer; }
.btn-light { background: var(--white); color: var(--ink); }
.btn-outline { background: transparent; color: currentColor; border-color: currentColor; }
.text-link { display: inline-flex; align-items: center; gap: 7px; min-height: 44px; font-weight: 850; text-underline-offset: 5px; }
.section { padding: 110px 0; }
.section-heading { max-width: 720px; margin-bottom: 48px; }
.section-heading h2 { margin: 14px 0 16px; font-size: 52px; line-height: 1.12; letter-spacing: 0; word-break: keep-all; }
.section-heading p { margin: 0; color: var(--muted); font-size: 17px; line-height: 1.75; }
.section-heading.center { margin-inline: auto; text-align: center; }
.section-heading.center .eyebrow { justify-content: center; }

.taste-bars { display: grid; gap: 10px; }
.taste-axis { display: grid; grid-template-columns: 80px 1fr 36px; gap: 10px; align-items: center; }
.taste-axis > span { font-size: 11px; font-weight: 850; }
.taste-axis output { font-size: 11px; text-align: right; }
.taste-dots { display: grid; grid-template-columns: repeat(5, 1fr); gap: 5px; }
.taste-dots i { display: block; height: 7px; background: rgba(104,104,104,.28); }
.taste-dots i.is-on { background: var(--taste-accent, var(--lime)); }

.proof-row, .ledger-row { border-top: 1px solid currentColor; }
.proof-row:last-child, .ledger-row:last-child { border-bottom: 1px solid currentColor; }
.proof-main, .ledger-main { min-height: 74px; display: grid; grid-template-columns: 150px 1fr 130px 72px; align-items: center; gap: 14px; }
.proof-main > span:first-child, .ledger-main > span:first-child { font-size: 11px; font-weight: 800; }
.proof-main strong, .ledger-main strong { font-size: 15px; }
.proof-status { font-size: 11px; color: var(--muted); }
.proof-toggle { min-height: 44px; display: inline-flex; align-items: center; justify-content: flex-end; gap: 5px; padding: 0; border: 0; background: transparent; cursor: pointer; font-size: 12px; font-weight: 800; }
.proof-detail, .ledger-detail { margin: 0; padding: 0 0 22px 150px; color: var(--muted); font-size: 13px; line-height: 1.65; }

.faq-list { border-top: 1px solid currentColor; }
.faq-list details { border-bottom: 1px solid currentColor; }
.faq-list summary { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 20px; cursor: pointer; list-style: none; font-size: 17px; font-weight: 800; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; font-size: 24px; font-weight: 400; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { max-width: 760px; margin: -5px 0 28px; color: var(--muted); line-height: 1.75; }

.final-cta { padding: 90px 0; }
.final-cta-inner { display: flex; align-items: flex-end; justify-content: space-between; gap: 40px; }
.final-cta h2 { margin: 0 0 14px; font-size: 54px; line-height: 1.12; word-break: keep-all; }
.final-cta p { margin: 0; line-height: 1.7; }
.final-actions { display: flex; gap: 10px; flex: 0 0 auto; }

.site-footer { padding: 58px 0 24px; background: var(--ink); color: var(--white); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 50px; }
.footer-title { margin: 0 0 18px; font-size: 11px; font-weight: 850; text-transform: uppercase; }
.footer-copy { max-width: 420px; margin: 20px 0 0; color: #bcbcbc; font-size: 13px; line-height: 1.75; }
.footer-list { display: grid; gap: 10px; color: #d8d8d8; font-size: 13px; }
.footer-bottom { margin-top: 52px; padding-top: 18px; display: flex; justify-content: space-between; gap: 20px; border-top: 1px solid #444; color: #aaa; font-size: 11px; }
.demo-notice { margin: 0; padding: 13px 20px; background: #efede7; color: #555; font-size: 11px; line-height: 1.55; text-align: center; }

.mobile-shop { position: fixed; z-index: 25; left: 12px; right: 12px; bottom: 12px; display: none; min-height: 52px; align-items: center; justify-content: center; gap: 8px; background: var(--ink); color: var(--white); text-decoration: none; box-shadow: 0 8px 28px rgba(0,0,0,.25); font-size: 14px; font-weight: 850; }
.nf-toast { position: fixed; z-index: 100; left: 50%; bottom: 24px; width: min(460px, calc(100% - 32px)); padding: 14px 16px; transform: translate(-50%, 24px); background: var(--ink); color: var(--white); opacity: 0; pointer-events: none; font-size: 13px; line-height: 1.5; text-align: center; transition: opacity .2s ease, transform .2s ease; }
.nf-toast.is-visible { opacity: 1; transform: translate(-50%, 0); }
.replace-badge { position: absolute; left: 16px; top: 16px; z-index: 2; padding: 7px 9px; background: var(--ink); color: var(--white); font-size: 10px; font-weight: 800; }

@media (max-width: 980px) {
  .header-nav { display: none; }
  .section { padding: 84px 0; }
  .section-heading h2 { font-size: 44px; }
  .final-cta h2 { font-size: 46px; }
}

@media (max-width: 720px) {
  .container { width: min(100% - 28px, var(--container)); }
  .age-notice .container { align-items: flex-start; padding-block: 8px; }
  .age-notice p { max-width: 230px; line-height: 1.4; }
  .header-inner { min-height: 62px; }
  .wordmark-copy { font-size: 14px; }
  .header-cta { width: 44px; padding: 0; justify-content: center; }
  .header-cta > span:last-child { display: none; }
  .section { padding: 68px 0; }
  .section-heading { margin-bottom: 32px; }
  .section-heading h2 { font-size: 36px; }
  .section-heading p { font-size: 15px; }
  .proof-main, .ledger-main { min-height: 70px; grid-template-columns: 94px 1fr 54px; gap: 8px; }
  .proof-main .proof-status, .ledger-main .proof-status { display: none; }
  .proof-detail, .ledger-detail { padding-left: 94px; }
  .final-cta { padding: 68px 0 92px; }
  .final-cta-inner { display: block; }
  .final-cta h2 { font-size: 38px; }
  .final-actions { margin-top: 28px; display: grid; }
  .footer-grid { grid-template-columns: 1fr; gap: 34px; }
  .footer-bottom { display: grid; margin-top: 38px; }
  .mobile-shop { display: flex; }
  .nf-toast { bottom: 76px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}