:root {
  color-scheme: light dark;
  --bg: #fbfbfc;
  --surface: #ffffff;
  --subtle: #f0f1f6;
  --ink: #20212b;
  --muted: #565966;
  --border: #dcdde6;
  --accent: #4f5bd5;
  --accent-hover: #3e49bd;
  --accent-soft: #eceefd;
  --dark: #111218;
  --on-dark: #f4f4f8;
  --muted-dark: #b9bdce;
  --shadow: 0 24px 60px rgb(13 16 36 / 16%);
  --radius: 16px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14151b;
    --surface: #1c1e27;
    --subtle: #191b24;
    --ink: #f0f1f7;
    --muted: #b3b8ca;
    --border: #343745;
    --accent: #a6afff;
    --accent-hover: #c4caff;
    --accent-soft: #292e4d;
    --shadow: 0 24px 60px rgb(0 0 0 / 28%);
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 24px; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: "IBM Plex Sans KR", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.7; word-break: keep-all; overflow-wrap: anywhere; -webkit-font-smoothing: antialiased; }
a { color: var(--accent); text-underline-offset: 4px; }
a:hover { color: var(--accent-hover); }
button, select { font: inherit; }
button, a, select { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; }
[hidden] { display: none !important; }
img { display: block; max-width: 100%; height: auto; }
svg { flex-shrink: 0; vertical-align: middle; }
h1, h2, h3, p, figure, pre { margin: 0; }
h1, h2, h3 { line-height: 1.3; }
h2 { font-size: clamp(28px, 3.2vw, 42px); font-weight: 600; letter-spacing: -.035em; text-wrap: balance; }
h3 { font-size: 19px; font-weight: 600; letter-spacing: -.02em; }
p { color: var(--muted); }
.container { width: min(1200px, calc(100% - 48px)); margin-inline: auto; }
.section { padding-block: 100px; }
.section-heading { max-width: 680px; margin-bottom: 48px; }
.section-heading > p:last-child { margin-top: 18px; font-size: 18px; }
.eyebrow { margin-bottom: 16px; color: var(--accent); font-size: 13px; font-weight: 600; letter-spacing: .08em; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 10; top: 8px; left: 16px; padding: 10px 20px; background: var(--surface); transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }
.site-header { background: var(--dark); color: var(--on-dark); border-bottom: 1px solid #2a2c37; }
.nav { display: flex; align-items: center; gap: 32px; min-height: 80px; padding-block: 14px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: inherit; text-decoration: none; font-size: 20px; font-weight: 600; letter-spacing: -.04em; flex-shrink: 0; }
.brand:hover { color: inherit; }
.brand img { flex: none; }
.nav-links { display: flex; flex: 1; align-items: center; justify-content: center; gap: 24px; }
.nav-links a { display: inline-flex; align-items: center; min-height: 44px; color: var(--muted-dark); font-size: 14px; text-decoration: none; white-space: nowrap; }
.nav-links a:hover { color: white; }
.nav-tools { display: flex; align-items: center; gap: 14px; }
.nav select { max-width: 130px; min-height: 44px; padding: 6px 8px; border: 1px solid #434654; border-radius: 8px; color: var(--on-dark); background: #20222c; font-size: 13px; cursor: pointer; }
.github-icon { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; color: var(--muted-dark); }
.github-icon:hover { color: white; }
.site-header :focus-visible, .hero :focus-visible, .download-card :focus-visible { outline-color: #bdc4ff; }
.hero { background: var(--dark); color: var(--on-dark); padding-top: 80px; }
.hero-copy { max-width: 940px; margin-inline: auto; text-align: center; }
.hero .eyebrow, .download-card .eyebrow { color: #b3bbff; }
h1 { font-size: clamp(34px, 5.6vw, 66px); font-weight: 600; letter-spacing: -.045em; line-height: 1.22; text-wrap: balance; }
.hero-accent { color: #b4bbff; }
.hero-desc { max-width: 640px; margin: 24px auto 0; color: var(--muted-dark); font-size: 19px; }
.actions { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 12px; margin-top: 30px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 50px; padding: 12px 24px; border: 1px solid transparent; border-radius: 10px; font-size: 15px; font-weight: 600; line-height: 1.5; text-align: center; text-decoration: none; }
.button.primary { background: #4f5bd5; color: #fff; }
.button.primary:hover { background: #3e49bd; color: #fff; }
.button.ghost { border-color: #535666; color: #f4f4f8; }
.button.ghost:hover { background: #262935; }
.button.secondary { border-color: var(--border); background: var(--surface); color: var(--ink); }
.button.secondary:hover { border-color: var(--accent); }
.trust { margin-top: 20px; color: var(--muted-dark); font-size: 13px; }
.hero-shot { max-width: 1060px; margin: 56px auto 0; padding-bottom: 24px; }
.window { overflow: hidden; background: #191a22; border: 1px solid #3d404e; border-radius: var(--radius); box-shadow: var(--shadow); }
.hero-shot .window { box-shadow: 0 24px 70px rgb(0 0 0 / 35%); }
.window img { width: 100%; aspect-ratio: 1400 / 885; }
figcaption { margin-top: 16px; text-align: center; font-size: 12px; color: var(--muted-dark); }
.feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.feature { padding: 28px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.feature-icon { color: var(--accent); margin-bottom: 24px; }
.feature p { margin-top: 12px; font-size: 15px; }
.tour { background: var(--subtle); }
.tour .section-heading { margin-bottom: 32px; }
.tabs { display: flex; flex-wrap: wrap; gap: 6px; padding-bottom: 24px; border-bottom: 1px solid var(--border); }
.tabs button { min-height: 46px; padding: 10px 20px; border: 1px solid transparent; background: transparent; color: var(--muted); border-radius: 8px; cursor: pointer; font-size: 15px; }
.tabs button[aria-selected="true"] { background: var(--surface); color: var(--accent); border-color: var(--border); font-weight: 600; }
.tabs button:hover { color: var(--accent); }
.tour-caption { display: grid; grid-template-columns: 1fr 2fr; align-items: center; gap: 32px; padding-block: 30px; }
.tour-caption h3 { font-size: 22px; }
.tour-caption p { max-width: 680px; font-size: 16px; }
.tour .window { max-width: 1060px; margin-inline: auto; }
.fine-print { margin-top: 20px; font-size: 13px; }
.tour > .container > .fine-print { text-align: center; }
.safety-layout { display: grid; grid-template-columns: .85fr 1.3fr; gap: 80px; }
.safety-layout .section-heading { margin-bottom: 0; }
.safety-mark { display: flex; align-items: center; justify-content: center; margin-top: 40px; width: 80px; height: 80px; color: var(--accent); background: var(--accent-soft); border-radius: 24px; }
.safety-mark svg { width: 40px; height: 40px; }
.safety-list { padding: 0; margin: 0; list-style: none; }
.safety-list li { display: flex; gap: 16px; padding-block: 20px; border-bottom: 1px solid var(--border); }
.safety-list li:first-child { padding-top: 0; }
.safety-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.safety-list svg { color: var(--accent); margin-top: 2px; width: 20px; height: 20px; }
.safety-list h3 { font-size: 17px; }
.safety-list p { margin-top: 6px; font-size: 14px; }
.ai-section { background: var(--subtle); }
.ai-layout { display: grid; grid-template-columns: 1.1fr 1fr; align-items: center; gap: 72px; }
.lead { margin-top: 22px; font-size: 17px; }
.agents { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; margin: 26px 0 0; padding: 0; }
.agents li { padding: 5px 10px; border: 1px solid var(--border); border-radius: 6px; font-size: 12px; color: var(--ink); background: var(--surface); }
.cli-block > p { margin-top: 12px; font-size: 15px; }
.terminal { margin-top: 24px; background: #111218; color: #f0f1f7; border: 1px solid #363845; border-radius: 12px; overflow: hidden; }
.terminal-bar { display: flex; justify-content: space-between; padding: 10px 20px; border-bottom: 1px solid #363845; color: #b9bdce; font: 12px ui-monospace, SFMono-Regular, Consolas, monospace; }
pre { max-width: 100%; white-space: pre-wrap; overflow-wrap: anywhere; font: 13px/2 ui-monospace, SFMono-Regular, Consolas, monospace; word-break: normal; }
.terminal pre { padding: 26px 20px; }
.code-comment { color: #b9bdce; }
.prompt { color: #b4bbff; }
.privacy { padding-block: 64px; border-bottom: 1px solid var(--border); }
.privacy-inner { display: flex; gap: 24px; align-items: flex-start; max-width: 920px; }
.privacy-icon { display: flex; align-items: center; justify-content: center; flex: none; width: 48px; height: 48px; border: 1px solid var(--border); border-radius: 12px; color: var(--accent); }
.privacy h2 { font-size: 24px; }
.privacy p { margin-top: 12px; font-size: 15px; }
.download-card { background: var(--dark); color: var(--on-dark); border-radius: 24px; padding: 64px 32px; text-align: center; }
.download-card > img { margin: 0 auto 22px; }
.download-card .eyebrow { margin-bottom: 12px; }
.download-card .lead { max-width: 580px; margin: 20px auto 28px; color: var(--muted-dark); }
.build-layout { display: grid; grid-template-columns: 1fr 1.1fr; gap: 48px; align-items: center; margin-top: 40px; padding: 0 24px; }
.build-layout p { margin-top: 12px; font-size: 14px; }
.text-link { display: inline-block; margin-top: 16px; font-size: 14px; }
.build-code { padding: 24px; background: var(--subtle); color: var(--ink); border: 1px solid var(--border); border-radius: 12px; }
.sponsor { padding-block: 56px; border-top: 1px solid var(--border); }
.sponsor-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.sponsor h2 { font-size: 26px; }
.sponsor p { margin-top: 12px; font-size: 15px; }
.sponsor .button { flex-shrink: 0; }
.sponsor .button svg { width: 18px; height: 18px; color: var(--accent); }
.footer { border-top: 1px solid var(--border); padding-block: 28px; }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; gap: 24px; }
.footer .brand { font-size: 16px; }
.footer p, .footer a { font-size: 12px; }
.footer a { color: inherit; text-decoration: none; }
.footer a:hover { text-decoration: underline; }
.footer-inner > div { display: flex; gap: 24px; margin-left: auto; }
@media (max-width: 1000px) {
  .nav { flex-wrap: wrap; gap: 8px 24px; }
  .nav-links { order: 3; flex-basis: 100%; justify-content: flex-start; gap: 24px; }
  .nav-tools { margin-left: auto; }
  .safety-layout, .ai-layout { gap: 40px; }
  .feature { padding: 22px; }
  .sponsor-inner { flex-wrap: wrap; }
}
@media (max-width: 700px) {
  .container { width: calc(100% - 32px); }
  .section { padding-block: 64px; }
  .nav { gap: 8px; }
  .nav-links { gap: 6px 18px; flex-wrap: wrap; }
  .nav-links a { font-size: 13px; }
  .nav-tools { gap: 4px; }
  .nav select { max-width: 114px; }
  .brand { font-size: 19px; gap: 7px; }
  .brand img { width: 30px; height: 30px; }
  .github-icon { width: 38px; }
  .hero { padding-top: 48px; }
  .hero-desc { font-size: 16px; }
  .hero .eyebrow { font-size: 11px; }
  .hero-shot { margin-top: 36px; }
  .hero .trust { font-size: 11px; }
  .window { border-radius: 10px; }
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .feature { padding: 20px; }
  .feature h3 { font-size: 17px; }
  .feature p { font-size: 14px; }
  .feature-icon { margin-bottom: 20px; }
  .section-heading { margin-bottom: 32px; }
  .section-heading > p:last-child { font-size: 16px; }
  .tour-caption { grid-template-columns: 1fr; gap: 10px; padding-block: 24px; }
  .tabs { gap: 4px; padding-bottom: 18px; }
  .tabs button { padding: 10px 12px; font-size: 14px; }
  .safety-layout, .ai-layout, .build-layout { grid-template-columns: 1fr; gap: 32px; }
  .safety-mark { display: none; }
  .privacy-inner { gap: 16px; }
  .privacy-icon { width: 40px; height: 40px; }
  .privacy h2 { font-size: 22px; }
  .download-card { padding: 40px 20px; border-radius: 18px; }
  .download-card h2 { font-size: 29px; }
  .download-card .lead { font-size: 16px; }
  .build-layout { padding: 0; }
  .build-code { font-size: 12px; padding: 20px; }
  .footer-inner { gap: 16px; }
  .footer-inner > p { width: 100%; order: 3; }
}
@media (max-width: 430px) {
  .feature-grid { grid-template-columns: 1fr; }
  .feature { display: grid; grid-template-columns: 28px 1fr; gap: 0 14px; }
  .feature-icon { grid-row: 1 / 3; margin: 0; }
  .feature p { grid-column: 2; }
  .tabs { display: grid; grid-template-columns: 1fr 1fr; }
  .tabs button { width: 100%; }
  .button { padding-inline: 18px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

/* Static user guides share the landing page’s theme and type tokens. */
.guide-nav { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 32px; padding-block: 18px; }
.guide-back { display: inline-flex; align-items: center; min-height: 44px; color: var(--muted-dark); text-decoration: none; font-size: 14px; }
.guide-back:hover { color: white; }
.guide-languages { display: flex; flex-wrap: wrap; gap: 12px; margin-left: auto; }
.guide-languages a { display: inline-flex; align-items: center; min-height: 44px; font-size: 13px; color: var(--muted-dark); text-decoration: none; }
.guide-languages a:hover, .guide-languages a[aria-current="page"] { color: white; text-decoration: underline; }
.guide-content { max-width: 920px; padding-block: 48px 80px; }
.guide-notice { padding: 20px 24px; margin-bottom: 40px; background: var(--accent-soft); border-left: 3px solid var(--accent); border-radius: 0 10px 10px 0; font-size: 14px; }
.guide-notice a { display: inline-block; margin-top: 12px; }
.guide-content h1 { font-size: clamp(30px, 4vw, 46px); margin-bottom: 32px; }
.guide-content h2 { font-size: 28px; border-top: 1px solid var(--border); padding-top: 32px; margin-top: 48px; margin-bottom: 20px; }
.guide-content h3 { font-size: 20px; margin-top: 30px; margin-bottom: 14px; }
.guide-content p, .guide-content ul, .guide-content ol, .guide-content pre { margin-block: 16px; }
.guide-content li { margin-block: 8px; color: var(--muted); }
.guide-content ul, .guide-content ol { padding-left: 24px; }
.guide-content strong { color: var(--ink); }
.guide-content code { font: .9em/1.6 ui-monospace, SFMono-Regular, Consolas, monospace; background: var(--subtle); padding: 2px 5px; border-radius: 4px; }
.guide-content pre { background: var(--subtle); border: 1px solid var(--border); border-radius: 10px; padding: 20px; }
.guide-content pre code { background: none; padding: 0; }
.guide-table { max-width: 100%; overflow-x: auto; margin-block: 24px; border: 1px solid var(--border); border-radius: 10px; }
.guide-table table { border-collapse: collapse; min-width: 620px; width: 100%; font-size: 14px; text-align: left; }
.guide-table th { background: var(--subtle); font-weight: 600; }
.guide-table th, .guide-table td { padding: 12px 16px; border-bottom: 1px solid var(--border); vertical-align: top; }
.guide-table td { color: var(--muted); }
.guide-table tr:last-child td { border-bottom: 0; }
@media (max-width: 700px) {
  .guide-nav { gap: 8px 16px; }
  .guide-languages { flex-basis: 100%; margin-left: 0; gap: 20px; }
  .guide-back { margin-left: auto; font-size: 12px; }
  .guide-content { padding-block: 32px 56px; }
  .guide-content h2 { font-size: 25px; }
  .guide-notice { padding: 16px; }
}
.guide-table code { white-space: nowrap; overflow-wrap: normal; word-break: normal; }