:root { color-scheme: dark; --bg: #0a0a0f; --surface: #12141b; --text: #f1f3f4; --muted: #a4acb9; --mint: #6bffd0; --line: #282d36; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", sans-serif; line-height: 1.7; -webkit-font-smoothing: antialiased; word-break: keep-all; overflow-wrap: anywhere; }
button, input { font: inherit; }
button, a, input, summary { -webkit-tap-highlight-color: transparent; }
button, a { touch-action: manipulation; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--mint); }
button:focus-visible, a:focus-visible, summary:focus-visible, input:focus-visible, [role="tabpanel"]:focus-visible { outline: 2px solid var(--mint); outline-offset: 5px; }
[hidden] { display: none !important; }
h1, h2, h3, h4, p, figure, blockquote { margin: 0; }
img { max-width: 100%; height: auto; display: block; }
.wrap { width: min(1240px, calc(100% - 96px)); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -100px; z-index: 20; padding: 12px 20px; background: var(--mint); color: var(--bg); border-radius: 8px; }
.skip-link:focus { top: 12px; }
.site-header { min-height: 82px; padding: 16px max(32px, calc((100vw - 1240px) / 2)); display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 28px; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 26px; font-weight: 850; letter-spacing: -1.5px; }
.brand-sub { margin-left: 4px; font-size: 17px; color: var(--mint); font-weight: 650; letter-spacing: -.8px; }
.site-header nav:not(.language-switch) { display: flex; gap: 32px; align-items: center; font-size: 14px; color: var(--muted); margin-left: auto; }
.language-switch { display: flex; align-items: center; gap: 4px; font-size: 11px; color: var(--muted); }
.language-switch a { display: inline-flex; min-height: 36px; padding: 6px 9px; align-items: center; border: 1px solid transparent; border-radius: 5px; }
.language-switch a[aria-current="page"] { color: var(--mint); border-color: #344d45; background: #14221e; }
html[lang="en"] body { word-break: normal; }
html[lang="en"] h1 { letter-spacing: -2px; }
html[lang="ja"] body { font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif; word-break: normal; }
.nav-cta { padding: 9px 16px; border: 1px solid #3c4651; border-radius: 7px; color: var(--text); }
.nav-cta span { margin-left: 10px; }
.hero { display: grid; grid-template-columns: .94fr 1.06fr; align-items: center; gap: 56px; padding-block: 104px 88px; }
.eyebrow { display: flex; align-items: center; gap: 9px; color: var(--mint); font-size: 11px; font-weight: 700; letter-spacing: 1.65px; line-height: 1.5; }
.signal { display: inline-block; width: 6px; height: 6px; flex: 0 0 6px; border-radius: 50%; background: var(--mint); }
h1 { margin-top: 27px; font-size: clamp(40px, 4.1vw, 60px); letter-spacing: -3px; line-height: 1.25; font-weight: 770; }
h1 em { color: var(--mint); font-style: normal; }
.lead { margin-top: 28px; font-size: 18px; color: #b5bdc8; line-height: 1.9; }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 35px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 18px; min-height: 50px; min-width: 150px; padding: 12px 20px; border-radius: 7px; font-size: 14px; font-weight: 700; border: 1px solid transparent; }
.primary { color: #07291e; background: var(--mint); }
.primary:hover { background: #9bffe0; color: #07291e; }
.secondary { border-color: #3b444a; background: #14181c; }
.secondary:hover { border-color: var(--mint); }
.availability { margin-top: 18px; color: var(--muted); font-size: 12px; line-height: 1.9; }
.motion { min-width: 0; overflow: hidden; background: #10151b; border: 1px solid #2a353b; border-radius: 16px; }
.hero-demo { box-shadow: 0 20px 100px #27594b18; }
.demo-topline { display: flex; gap: 14px; justify-content: space-between; padding: 17px 20px; border-bottom: 1px solid #26323a; color: #92a9a9; font-size: 9px; letter-spacing: 1px; }
.demo-topline > span:first-child { display: flex; align-items: center; gap: 8px; }
.demo-topline > span:last-child { white-space: nowrap; letter-spacing: 0; }
.motion img { width: 100%; aspect-ratio: 10 / 7; object-fit: contain; }
figcaption { padding: 12px 16px; display: flex; align-items: center; justify-content: space-between; gap: 12px; font-size: 11px; color: var(--muted); border-top: 1px solid var(--line); }
.motion-toggle { flex-shrink: 0; min-height: 36px; border: 1px solid #3c4851; background: transparent; color: #d8e6e1; padding: 4px 10px; border-radius: 5px; font-size: 11px; }
.motion-toggle:hover { border-color: var(--mint); }
.connection-strip { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 28px 16px; border-block: 1px solid var(--line); font-size: 14px; color: #c4cbd5; }
.connection-strip b { color: var(--mint); font-size: 11px; margin-right: 14px; }
.connection-strip > span:nth-child(even) { color: #4f625d; }
.section { padding-block: 104px; }
.section-heading { margin-bottom: 42px; }
h2 { font-size: clamp(28px, 3.2vw, 42px); letter-spacing: -1.7px; line-height: 1.35; margin-top: 18px; font-weight: 730; }
.section-heading > p:last-child:not(.eyebrow) { margin-top: 20px; color: var(--muted); font-size: 16px; }
.use-grid, .prompt-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.use-card { padding: 28px; border: 1px solid var(--line); border-radius: 12px; background: #111318; }
.use-number { color: #87a49b; font-size: 10px; letter-spacing: 1.6px; }
.use-card h3 { margin-top: 28px; font-size: 21px; letter-spacing: -.7px; }
.use-card > p { color: var(--muted); margin-top: 12px; font-size: 14px; line-height: 1.85; }
.use-card blockquote { border-top: 1px solid var(--line); padding-top: 24px; margin-top: 24px; color: #c7f8e8; font-size: 14px; }
.section-note { color: #a0a8b5; font-size: 12px; margin-top: 24px; }
.guide-section { background: #0f1118; border-block: 1px solid var(--line); }
.provider-tabs { display: flex; border-bottom: 1px solid #303540; gap: 24px; margin-bottom: 32px; }
.provider-tabs button { border: 0; border-bottom: 2px solid transparent; margin-bottom: -1px; color: var(--muted); background: transparent; padding: 14px 6px 18px; font-size: 19px; font-weight: 650; text-align: left; }
.provider-tabs button[aria-selected="true"] { color: var(--text); border-color: var(--mint); }
.provider-tabs button span { font-size: 10px; font-weight: 500; background: #1f2830; padding: 5px 8px; border-radius: 4px; margin-left: 10px; vertical-align: middle; color: #a3b9b1; }
.release-note { display: flex; align-items: flex-start; gap: 15px; padding: 18px 22px; margin-bottom: 36px; border: 1px solid #3a3b31; background: #1c1e18; border-radius: 8px; }
.release-note p { font-size: 13px; color: #bfc3ab; }
.tag { font-size: 10px; color: #d4e09c; background: #343c24; border-radius: 4px; padding: 3px 7px; flex-shrink: 0; margin-top: 2px; }
.guide-grid { display: grid; grid-template-columns: .95fr 1.05fr; gap: 64px; align-items: start; }
.guide-copy h3 { font-size: 26px; letter-spacing: -1px; line-height: 1.4; }
.guide-subtitle { margin-top: 8px; font-size: 14px; color: var(--muted); }
.steps { list-style: none; padding: 0; margin: 32px 0; display: grid; gap: 25px; }
.steps li { display: flex; gap: 17px; }
.step-number { display: flex; align-items: center; justify-content: center; width: 27px; height: 27px; flex: 0 0 27px; border: 1px solid #344d45; border-radius: 50%; color: var(--mint); font-size: 12px; }
.steps h4 { font-size: 16px; font-weight: 650; line-height: 1.6; }
.steps p { font-size: 13px; color: var(--muted); margin-top: 6px; line-height: 1.85; }
.steps strong { color: #d2d9e0; font-weight: 500; }
kbd { background: #243b34; padding: 2px 5px; border-radius: 3px; color: var(--mint); font: inherit; }
.text-link { display: inline-flex; min-height: 44px; align-items: center; gap: 16px; font-size: 14px; color: var(--mint); }
.setup-demo { position: sticky; top: 32px; margin-top: 4px; }
.claude-color { color: #e6b29c; margin-bottom: 16px; }
.server-box { margin-top: 24px; padding: 16px; border: 1px solid #35493f; background: #121e1b; border-radius: 8px; }
.server-box label { font-size: 11px; color: #b8d4c9; }
.server-input { display: flex; margin-top: 4px; gap: 6px; align-items: center; }
.server-input input { width: 100%; min-width: 0; color: var(--mint); border: 0; background: transparent; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 13px; padding: 8px 0; }
.server-box > span { display: block; color: #9cafa7; font-size: 11px; margin-top: 7px; }
.copy-button { flex-shrink: 0; background: #243d33; border: 1px solid #3a594c; color: #b9ffdf; border-radius: 5px; font-size: 11px; min-height: 38px; padding: 5px 9px; }
.approval-help { margin-top: 30px; border-top: 1px solid var(--line); padding-top: 25px; display: grid; grid-template-columns: 180px 1fr; gap: 24px; }
.small-label { font-size: 12px; color: #dae6df; }
.approval-help p { font-size: 13px; color: var(--muted); }
.approval-help strong { font-weight: 500; color: #c5d4ce; }
.prompt-card { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 24px; display: flex; flex-direction: column; align-items: flex-start; }
.prompt-card > span { font-size: 11px; color: var(--mint); }
.prompt-card p { margin-block: 18px 24px; font-size: 15px; line-height: 1.9; }
.prompt-card button { margin-top: auto; min-height: 38px; font-size: 12px; background: transparent; color: var(--muted); padding: 5px 0; border: 0; }
.prompt-card button span { margin-left: 30px; }
.prompt-card button:hover { color: var(--mint); }
.faq-section { padding-top: 0; display: grid; grid-template-columns: .8fr 1.2fr; gap: 80px; }
.faq details { border-bottom: 1px solid var(--line); padding-block: 20px; }
.faq details:first-child { border-top: 1px solid var(--line); }
.faq summary { cursor: pointer; list-style: none; font-size: 15px; padding-right: 30px; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 2px; color: var(--mint); }
.faq details[open] summary::after { content: "−"; }
.faq details p { color: var(--muted); font-size: 13px; line-height: 1.9; padding: 16px 24px 4px 0; }
.closing { padding: 64px 24px; text-align: center; border: 1px solid #294139; border-radius: 18px; background: radial-gradient(ellipse at 50% 100%, #16352b, #101817 70%); }
.closing .eyebrow { justify-content: center; }
.closing p:not(.eyebrow) { margin-top: 22px; color: var(--muted); font-size: 14px; }
.closing .button { margin-top: 28px; }
footer { margin-top: 80px !important; padding-block: 30px 42px; border-top: 1px solid var(--line); display: flex; align-items: center; flex-wrap: wrap; gap: 18px 36px; }
footer > p { color: #8f99a9; font-size: 11px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 20px; margin-left: auto; font-size: 11px; color: #a7afbb; }
.toast:empty { display: none; }
.toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); width: max-content; max-width: calc(100% - 32px); background: #d2ffec; color: #123629; padding: 12px 20px; font-size: 13px; border-radius: 8px; z-index: 10; box-shadow: 0 8px 32px #0005; }
@media (max-width: 1100px) {
  .hero { gap: 32px; padding-block: 72px; }
  h1 { font-size: 43px; letter-spacing: -2px; }
  .hero-actions .button { font-size: 12px; padding: 10px 13px; gap: 10px; min-width: 0; }
  .guide-grid { gap: 36px; }
  .faq-section { gap: 40px; }
  .use-card { padding: 23px; }
}
@media (max-width: 800px) {
  .wrap { width: calc(100% - 40px); }
  .site-header { padding: 16px 20px; gap: 12px; }
  .site-header nav:not(.language-switch) { gap: 18px; font-size: 12px; }
  .language-switch { flex-basis: 100%; justify-content: flex-end; }
  .nav-cta { padding: 7px 10px; }
  .hero { grid-template-columns: 1fr; padding-block: 56px; gap: 36px; }
  h1 { font-size: clamp(39px, 7vw, 54px); }
  .lead { font-size: 16px; }
  .hero-actions .button { font-size: 14px; padding: 12px 18px; }
  .hero-demo { width: 100%; max-width: 620px; }
  .connection-strip { gap: 12px; padding-inline: 0; font-size: 12px; }
  .connection-strip b { display: block; margin: 0 0 7px; }
  .section { padding-block: 64px; }
  .use-grid { grid-template-columns: 1fr; }
  .use-card h3 { margin-top: 12px; }
  .use-card > p br, .use-card blockquote br { display: none; }
  .use-card blockquote { margin-top: 18px; padding-top: 18px; }
  .guide-grid { grid-template-columns: 1fr; gap: 30px; }
  .setup-demo { position: static; }
  .provider-panel + .provider-panel:not([hidden]) { margin-top: 48px; }
  .provider-tabs button { font-size: 18px; }
  .provider-tabs button span { margin-left: 5px; }
  .approval-help { grid-template-columns: 1fr; gap: 9px; }
  .prompt-grid { grid-template-columns: 1fr; }
  .prompt-card p { margin-block: 14px; }
  .faq-section { grid-template-columns: 1fr; gap: 0; padding-top: 0; }
  .closing { padding: 48px 20px; }
  .footer-links { margin-left: 0; }
  footer { margin-top: 48px !important; }
}
@media (max-width: 420px) {
  html[lang="ja"] .guide-copy h3 { font-size: 22px; }
  .site-header nav:not(.language-switch) > a:first-child { display: none; }
  .brand { font-size: 23px; gap: 7px; }
  .brand img { width: 27px; height: 27px; }
  .site-header nav:not(.language-switch) { gap: 12px; }
  .nav-cta { font-size: 11px; }
  .nav-cta span { margin-left: 2px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .button { width: 100%; justify-content: space-between; }
  .eyebrow { font-size: 10px; letter-spacing: 1.2px; }
  h1 { font-size: 39px; }
  .demo-topline { padding: 12px; font-size: 8px; gap: 8px; }
  figcaption { flex-wrap: wrap; padding: 10px 12px; }
  .provider-tabs { gap: 15px; }
  .provider-tabs button { font-size: 17px; }
  .provider-tabs button span { display: block; margin: 5px 0 0; width: fit-content; }
  .release-note { padding: 16px; flex-direction: column; gap: 8px; }
  .server-input { flex-wrap: wrap; }
  .server-input input { font-size: 12px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }