:root { --kb-ground: #edece7; --kb-accent: #145a43; --ink: #242820; --muted: #62675e; --line: #ced1c6; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 24px; }
body { margin: 0; background: var(--kb-ground); color: var(--ink); font-family: var(--kb-body); font-size: 16px; line-height: 1.65; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-underline-offset: 4px; }
button { font: inherit; }
img { max-width: 100%; height: auto; display: block; }
p, h1, h2, h3 { margin: 0; }
html[data-language="en"] .copy-ko, html[data-language="ko"] .copy-en { display: none; }
.shell { width: min(1160px, calc(100% - 96px)); margin-inline: auto; }
.company-header { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding-block: 26px; border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: baseline; gap: 14px; font-family: var(--kb-display); font-size: 25px; font-weight: 600; letter-spacing: -.025em; text-decoration: none; white-space: nowrap; }
.brand-note { font-family: var(--kb-body); font-size: 12px; font-weight: 450; letter-spacing: 0; color: var(--muted); }
.company-header nav { display: flex; align-items: center; gap: 28px; font-size: 13px; }
.company-header nav a { text-decoration: none; }
.language-toggle { min-height: 44px; border: 0; padding: 0 4px; background: transparent; cursor: pointer; font-family: var(--kb-mono); font-size: 12px; color: var(--muted); }
html[data-language="en"] .language-en, html[data-language="ko"] .language-ko { color: var(--kb-accent); font-weight: 700; }
.hero { display: grid; grid-template-columns: minmax(0, 1fr) 300px; align-items: center; gap: 36px; padding-block: clamp(64px, 8vw, 112px) 80px; }
h1 { margin-top: 26px; font-family: var(--kb-display); font-weight: 400; font-size: clamp(46px, 6.7vw, 84px); line-height: 1.08; letter-spacing: var(--kb-track-display); }
html[data-language="ko"] h1 { font-family: var(--kb-body); font-weight: 550; font-size: clamp(36px, 5.1vw, 66px); line-height: 1.22; }
.hero-intro { max-width: 545px; margin-top: 27px; font-size: var(--kb-step-1); color: var(--muted); line-height: 1.7; }
.text-link { display: inline-flex; gap: 14px; align-items: center; font-size: 14px; font-weight: 550; text-decoration: none; color: var(--kb-accent); }
.hero .text-link { margin-top: 30px; }
.orbit { display: grid; justify-items: center; gap: 22px; color: var(--kb-accent); }
.orbit svg { width: 100%; }
.orbit .kb-label { color: var(--muted); }
.section-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; padding-bottom: 22px; border-bottom: 1px solid var(--line); }
.section-note { color: var(--muted); font-size: 14px; }
.product { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); align-items: center; gap: clamp(32px, 6vw, 76px); padding-block: 58px; border-bottom: 1px solid var(--line); }
.product-name { display: flex; align-items: center; gap: 12px; }
.product-name img { border-radius: 9px; flex-shrink: 0; }
.product-name h2 { font-size: 22px; font-weight: 600; letter-spacing: var(--kb-track-tight); }
.name-ko { font-size: 13px; font-weight: 450; margin-left: 6px; color: var(--muted); }
.product-platform { margin-top: 12px; font-size: 10px; }
.product h3 { font-family: var(--kb-display); font-size: clamp(32px, 3.2vw, 42px); font-weight: 400; line-height: 1.17; letter-spacing: var(--kb-track-display); margin-block: 22px 20px; }
html[data-language="ko"] .product h3 { font-family: var(--kb-body); font-size: clamp(28px, 2.8vw, 36px); font-weight: 550; line-height: 1.3; }
.product-copy > p:not(.kb-label) { max-width: 430px; color: var(--muted); }
.features { list-style: none; display: flex; flex-wrap: wrap; gap: 6px 18px; padding: 0; margin: 19px 0 24px; font-size: 12px; color: var(--muted); }
.features li::before { content: ""; display: inline-block; width: 4px; height: 4px; margin-right: 7px; border-radius: 50%; background: var(--kb-accent); vertical-align: .2em; }
.product-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 20px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 18px; min-height: 46px; padding: 10px 18px; background: var(--kb-accent); color: #fff; border-radius: 4px; font-size: 13px; font-weight: 550; text-decoration: none; }
.policy-links { display: flex; gap: 20px; margin-top: 15px; color: var(--muted); font-size: 12px; }
.policy-links a { display: inline-flex; align-items: center; min-height: 32px; }
.product-visual { min-width: 0; aspect-ratio: 1.2; display: flex; flex-direction: column; align-items: center; justify-content: center; overflow: hidden; border-radius: 10px; }
.subtitle-visual { background: #17382e; padding: 26px; }
.subtitle-visual img { width: 100%; border-radius: 6px; box-shadow: 0 12px 28px #071b2350; }
.spamdog-visual { background: #e0e6d8; padding: 32px; }
.spamdog-visual img { width: min(78%, 310px); }
.visual-caption { margin-top: 20px; font-size: 9px; text-align: center; }
.about { display: grid; grid-template-columns: 1fr 1.05fr; gap: clamp(32px, 6vw, 76px); padding-block: 76px; border-bottom: 1px solid var(--line); }
.about h2 { font-family: var(--kb-display); font-size: clamp(32px, 3.7vw, 46px); line-height: 1.16; font-weight: 400; letter-spacing: var(--kb-track-display); margin-top: 24px; }
html[data-language="ko"] .about h2 { font-family: var(--kb-body); font-size: clamp(28px, 3vw, 38px); font-weight: 550; line-height: 1.3; }
.about-copy > p { color: var(--muted); }
.about dl { margin: 25px 0 22px; }
.about dl div { display: flex; gap: 20px; justify-content: space-between; padding-block: 10px; border-bottom: 1px solid var(--line); font-size: 13px; }
.about dt { color: var(--muted); }
.about dd { margin: 0; text-align: right; }
.contact { padding-block: 72px; }
.contact h2 { font-family: var(--kb-display); font-weight: 400; font-size: clamp(34px, 4vw, 50px); letter-spacing: var(--kb-track-display); line-height: 1.2; margin-block: 20px 16px; }
html[data-language="ko"] .contact h2 { font-family: var(--kb-body); font-weight: 550; }
.contact > p:not(.kb-label) { color: var(--muted); }
.contact-email { display: inline-flex; align-items: center; gap: 18px; font-size: clamp(17px, 2.4vw, 28px); font-weight: 500; margin-top: 22px; text-decoration: none; color: var(--kb-accent); overflow-wrap: anywhere; }
.company-footer { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px; border-top: 1px solid var(--line); padding-block: 26px 32px; color: var(--muted); }
.company-footer > a { display: inline-flex; align-items: center; gap: 12px; min-height: 40px; font-size: 12px; text-decoration: none; }
@media (hover: hover) and (pointer: fine) { .company-header nav a:hover, .policy-links a:hover { color: var(--kb-accent); } .button:hover { background: #0e4533; } .text-link:hover, .contact-email:hover { text-decoration: underline; } }
@media (max-width: 800px) { .shell { width: calc(100% - 48px); } .brand-note { display: none; } .hero { grid-template-columns: 1fr 190px; gap: 20px; } .product, .about { gap: 30px; } .subtitle-visual { padding: 16px; } .spamdog-visual { padding: 20px; } }
@media (max-width: 600px) { .shell { width: calc(100% - 40px); } .company-header { padding-block: 16px; gap: 12px; } .brand { font-size: 22px; } .company-header nav { gap: 14px; font-size: 12px; } .hero { grid-template-columns: 1fr; padding-block: 52px 48px; } .hero .kb-label { font-size: 10px; } .orbit { display: none; } .hero-intro { font-size: 17px; } .section-heading { flex-direction: column; gap: 8px; } .section-note { font-size: 13px; } .product { grid-template-columns: 1fr; gap: 28px; padding-block: 36px; } .product-visual { aspect-ratio: 1.35; } .spamdog-visual img { width: 60%; } .visual-caption { margin-top: 8px; } .product h3 { margin-top: 18px; } .about { grid-template-columns: 1fr; gap: 26px; padding-block: 46px; } .contact { padding-block: 48px; } .company-footer { align-items: flex-start; } .kb-sig { font-size: 10px; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }