:root {
      --bg-deep: #0a2a23;
      --bg-deeper: #051a14;
      --cream: #f6efe0;
      --cream-warm: #efe6d2;
      --teal: #82bbb5;
      --teal-dark: #013220;
      --yellow: #ffde59;
      --ink: #16201d;
      --ink-soft: #2b3531;
      --ink-light: #4e5854;
      --line: rgba(20, 32, 28, 0.12);

      /* Contract with kuiper.css. */
      --kb-accent: #0d5546;
      --kb-accent-ink: #f6efe0;
    }
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      font-family: var(--kb-body);
      background: var(--cream);
      color: var(--ink);
      line-height: 1.65;
      font-size: 17px;
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
    }
    ::selection { background: var(--yellow); color: var(--bg-deep); }
    img { max-width: 100%; height: auto; display: block; }
    a { color: inherit; }

    .hero {
      background:
        radial-gradient(ellipse 70% 60% at 50% 0%, rgba(130,187,181,0.14), transparent 65%),
        linear-gradient(180deg, var(--bg-deeper) 0%, var(--bg-deep) 100%);
      color: var(--cream);
      padding: 4rem 1.5rem 4.5rem;
      text-align: center;
    }
    .hero-inner { max-width: 780px; margin: 0 auto; }
    .breadcrumb {
      font-family: var(--kb-mono);
      font-size: .78rem; letter-spacing: .04em;
      color: rgba(246,239,224,.55); margin-bottom: 2rem;
    }
    .breadcrumb .slash { color: var(--teal); padding: 0 .3rem; }
    .logo { width: 96px; height: 96px; margin: 0 auto 1.5rem; }
    h1 {
      font-family: var(--kb-display);
      font-weight: 900; font-size: clamp(2.1rem, 5.5vw, 3.4rem);
      line-height: 1.08; letter-spacing: -.02em; margin-bottom: 1rem;
    }
    h1 em { font-style: normal; color: var(--teal); }
    .hero-sub {
      font-size: 1.13rem; color: rgba(246,239,224,.82);
      max-width: 40rem; margin: 0 auto 2rem;
    }
    .cta-row { display: flex; gap: .75rem; justify-content: center; flex-wrap: wrap; }
    .btn {
      display: inline-block; padding: .8rem 1.6rem; border-radius: 999px;
      font-weight: 700; font-size: .98rem; text-decoration: none;
      transition: transform 140ms ease, background 140ms ease;
    }
    .btn:hover { transform: translateY(-1px); }
    .btn-primary { background: var(--yellow); color: var(--bg-deep); }
    .btn-ghost { border: 1.5px solid rgba(246,239,224,.32); color: var(--cream); }
    .hero-meta {
      margin-top: 1.6rem; display: flex; gap: .5rem; justify-content: center;
      flex-wrap: wrap; font-family: var(--kb-mono); font-size: .76rem;
    }
    .pill {
      padding: .3rem .7rem; border-radius: 999px;
      background: rgba(246,239,224,.09); border: 1px solid rgba(246,239,224,.16);
      color: rgba(246,239,224,.8);
    }
    .divider { height: 5px; background: linear-gradient(90deg, var(--teal), var(--yellow)); }

    main { max-width: 860px; margin: 0 auto; padding: 3.5rem 1.5rem 1rem; }
    .lede { font-size: 1.2rem; color: var(--ink-soft); margin-bottom: 3rem; }
    section { margin-bottom: 3.5rem; }
    .section-head { display: flex; align-items: baseline; gap: .9rem; margin-bottom: 1.1rem; }
    .section-num {
      font-family: var(--kb-mono); font-size: .8rem;
      color: var(--teal); font-weight: 700;
    }
    h2 {
      font-family: var(--kb-display); font-weight: 700;
      font-size: 1.75rem; letter-spacing: -.01em;
    }
    h3 { font-size: 1.05rem; margin: 1.6rem 0 .4rem; }
    p { margin-bottom: 1rem; color: var(--ink-soft); }
    ul { margin: 0 0 1rem 1.2rem; color: var(--ink-soft); }
    li { margin-bottom: .5rem; }
    .shot {
      border-radius: 14px; overflow: hidden; border: 1px solid var(--line);
      box-shadow: 0 18px 44px -20px rgba(1,50,32,.4); margin: 1.5rem 0;
    }
    .grid { display: grid; gap: 1.2rem; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
    .card {
      background: #fff; border: 1px solid var(--line); border-radius: 14px;
      padding: 1.3rem 1.4rem;
    }
    .card h3 { margin-top: 0; }
    .card p { margin-bottom: 0; font-size: .95rem; }
    .pro {
      background: linear-gradient(180deg, var(--bg-deep), var(--bg-deeper));
      color: var(--cream); border-radius: 18px; padding: 2.2rem 1.8rem; text-align: center;
    }
    .pro h2 { color: var(--cream); }
    .pro p { color: rgba(246,239,224,.82); }
    .price { font-family: var(--kb-display); font-size: 2.6rem; font-weight: 900; }
    .price small { font-size: .95rem; font-family: var(--kb-body); font-weight: 500; opacity: .8; }
    .faq dt { font-weight: 700; margin-top: 1.4rem; }
    .faq dd { margin: .35rem 0 0; color: var(--ink-soft); }
    footer { border-top: 1px solid var(--line); margin-top: 3rem; padding: 2rem 1.5rem 3rem; }
    .footer-inner {
      max-width: 860px; margin: 0 auto; display: flex; gap: 1rem;
      justify-content: space-between; flex-wrap: wrap;
      font-size: .9rem; color: var(--ink-light);
    }
    .footer-links { display: flex; gap: 1.2rem; flex-wrap: wrap; }

/* Shared product chrome and readable text flow across all three pages. */
h1,h2,h3,summary { text-wrap: balance; }
p,li,dd { text-wrap: pretty; }
[lang="ko"] { word-break: keep-all; }
.product-header { background: var(--bg-deeper); color: var(--cream); border-bottom: 1px solid rgba(246,239,224,.12); }
.header-inner { max-width: 860px; margin: auto; padding: 1rem 1.5rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { display: flex; align-items: center; gap: .65rem; text-decoration: none; font-weight: 650; }
.brand img { width: 32px; height: 32px; }
.product-nav { display: flex; flex-wrap: wrap; gap: 1.25rem; font-size: .9rem; }
.product-nav a { text-decoration: none; color: inherit; opacity: .65; }
.product-nav a[aria-current="page"] { opacity: 1; text-decoration: underline; text-underline-offset: .4rem; text-decoration-color: var(--teal); }
.product-nav a:hover { opacity: 1; }
.skip { position: absolute; left: 12px; top: 12px; z-index: 10; padding: .5rem 1rem; background: var(--yellow); color: var(--bg-deep); transform: translateY(-200%); }
.skip:focus { transform: none; }
.document-hero { padding: 4rem 1.5rem; margin-bottom: 0; }
.overview-hero .cta-row { margin-top: 2rem; }
html { background: var(--bg-deeper); scrollbar-gutter: stable; }
main:focus { outline: none; }
.eyebrow { font-family: var(--kb-mono); font-size: .76rem; color: var(--teal); margin-bottom: 1.5rem; }
.document-hero h1 { margin-bottom: 1.5rem; }
.lead { max-width: 40rem; margin: auto; color: rgba(246,239,224,.82); font-size: 1.13rem; }
.lead > span { display: block; text-wrap: balance; }
.lead > span + span { margin-top: .35rem; }
.phrase { white-space: nowrap; }
.two-column { display: grid; grid-template-columns: 1fr 1.15fr; gap: 2rem; }
.contact-card { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 1.5rem; }
.contact-card h3 { margin-top: 0; }
.email { font-weight: 600; overflow-wrap: anywhere; }
.note { font-size: .88rem; color: var(--ink-light); }
.prose { max-width: 72ch; }
.prose section { padding-top: 2rem; border-top: 1px solid var(--line); }
.prose h2 { margin-bottom: 1rem; line-height: 1.2; }
.prose ol { padding-left: 1.3rem; }
.prose code { font-size: .88em; overflow-wrap: anywhere; }
.prose a { overflow-wrap: anywhere; }
.faq details { border-bottom: 1px solid var(--line); padding: 1.1rem 0; }
.faq summary { cursor: pointer; font-weight: 650; line-height: 1.4; }
.faq details p { margin: .75rem 0 0; }
.section h2 { margin-bottom: 1rem; }
.footer .shell { max-width: 860px; margin: auto; }
.footer nav { display: flex; flex-wrap: wrap; gap: 1.2rem; }
.footer a { text-decoration: none; }
@media (max-width: 640px) {
 .header-inner { align-items: flex-start; flex-direction: column; gap: .8rem; }
 .product-nav { gap: 1.25rem; }
 .hero,.document-hero { padding: 3rem 1.5rem; }
 .two-column { grid-template-columns: 1fr; gap: 1.5rem; }
 main { padding-top: 2.5rem; }
 .section-head { align-items: flex-start; }
}