:root{color-scheme:light dark;--bg: #ffffff;--bg-alt: #f7f7f9;--fg: #0b0f17;--muted: #5b6577;--border: #e5e7eb;--brand: #2563eb;--brand-fg: #ffffff;--accent: #0ea5e9;--code-bg: #0f172a;--code-fg: #e2e8f0;--shadow: 0 1px 2px rgba(0, 0, 0, .04), 0 6px 24px rgba(0, 0, 0, .06);--radius: 12px;--font: system-ui, -apple-system, "Segoe UI", Roboto, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif}@media (prefers-color-scheme: dark){:root{--bg: #0b0f17;--bg-alt: #111726;--fg: #e5e7eb;--muted: #94a3b8;--border: #1f2937;--brand: #3b82f6;--brand-fg: #ffffff;--shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 6px 24px rgba(0, 0, 0, .4)}}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--fg);font-family:var(--font);line-height:1.65;-webkit-font-smoothing:antialiased}a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:var(--brand-fg);padding:8px 12px;z-index:100}.skip-link:focus{left:8px;top:8px}.container{max-width:1080px;margin:0 auto;padding:0 24px}.container.narrow{max-width:720px}.nav{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;border-bottom:1px solid var(--border);position:sticky;top:0;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:saturate(180%) blur(8px);z-index:10}.brand{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:18px;color:var(--fg)}.brand:hover{text-decoration:none}.brand-dot{width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--accent));display:inline-block}.nav-links{display:flex;gap:20px}.nav-links a{color:var(--muted);font-size:14px}.nav-links a:hover{color:var(--fg);text-decoration:none}.hero{padding:96px 0 64px;background:radial-gradient(60% 60% at 50% 0%,color-mix(in srgb,var(--brand) 18%,transparent),transparent 70%),var(--bg)}.eyebrow{display:inline-block;font-size:13px;color:var(--muted);border:1px solid var(--border);padding:4px 10px;border-radius:999px;margin-bottom:20px}.hero h1{font-size:clamp(32px,5vw,56px);line-height:1.15;margin:0 0 16px;letter-spacing:-.02em}.hl{background:linear-gradient(135deg,var(--brand),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}.lede{font-size:18px;color:var(--muted);max-width:64ch;margin:0 0 28px}.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:20px}.hero-meta{font-size:13px;color:var(--muted);margin:0}.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 18px;border-radius:10px;font-weight:600;font-size:14px;border:1px solid transparent;cursor:pointer;transition:transform .1s ease,box-shadow .15s ease,background .15s ease}.btn:hover{text-decoration:none;transform:translateY(-1px)}.btn-primary{background:var(--brand);color:var(--brand-fg)}.btn-primary:hover{box-shadow:0 8px 24px color-mix(in srgb,var(--brand) 35%,transparent)}.btn-ghost{background:transparent;color:var(--fg);border-color:var(--border)}.btn-ghost:hover{background:var(--bg-alt)}.btn.mailto{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px}.btn.mailto span[aria-hidden]{margin-right:6px;color:var(--brand)}.section{padding:80px 0}.section-alt{background:var(--bg-alt)}.section h2{font-size:clamp(24px,3vw,36px);margin:0 0 16px;letter-spacing:-.01em}.muted{color:var(--muted)}.small{font-size:13px}.grid{display:grid;gap:20px;margin-top:32px}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}@media (max-width: 900px){.grid-3,.grid-4{grid-template-columns:1fr 1fr}}@media (max-width: 580px){.grid-3,.grid-4{grid-template-columns:1fr}}.card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}.card h3{margin:0 0 8px;font-size:17px}.card p{margin:0;color:var(--muted);font-size:14px}.code{background:var(--code-bg);color:var(--code-fg);padding:16px;border-radius:10px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px;line-height:1.55;overflow-x:auto;margin:16px 0}.code code{background:transparent;padding:0;font-family:inherit}.notice{margin:16px 0 0;padding:12px 16px;border:1px dashed color-mix(in srgb,var(--brand) 50%,var(--border));border-radius:10px;background:color-mix(in srgb,var(--brand) 6%,transparent);color:var(--fg);font-size:14px;line-height:1.6}.notice strong{display:inline-block;margin-right:8px;padding:2px 8px;border-radius:999px;background:var(--brand);color:var(--brand-fg);font-size:11px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;vertical-align:2px}.notice code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px;padding:1px 6px;border-radius:4px;background:color-mix(in srgb,var(--fg) 8%,transparent)}.reveal{margin-top:12px;border:1px solid var(--border);border-radius:10px;padding:12px 16px;background:var(--bg)}.reveal summary{cursor:pointer;font-weight:600;font-size:14px;list-style:none}.reveal summary::-webkit-details-marker{display:none}.reveal[open] summary{margin-bottom:8px}.reveal pre{margin:0}.plan{border:1px solid var(--border);border-radius:var(--radius);padding:22px;background:var(--bg);display:flex;flex-direction:column;gap:16px}.plan header h3{margin:0 0 6px;font-size:16px;color:var(--muted)}.plan .price{font-size:22px;font-weight:700;letter-spacing:-.01em;color:var(--muted)}.plan .price small{font-size:13px;color:var(--muted);font-weight:500;margin-left:2px}.plan ul{list-style:none;margin:0;padding:0;flex:1}.plan li{padding:6px 0;font-size:14px;color:var(--muted);border-bottom:1px dashed var(--border)}.plan li:last-child{border-bottom:none}.plan li strong{color:var(--fg)}.plan-featured{border-color:var(--brand);box-shadow:0 0 0 4px color-mix(in srgb,var(--brand) 12%,transparent)}.email-cta{display:flex;flex-direction:column;align-items:center;text-align:center;background:linear-gradient(135deg,var(--brand),var(--accent));color:var(--brand-fg);border-radius:14px;padding:24px 20px;margin:24px 0;text-decoration:none;box-shadow:0 8px 24px color-mix(in srgb,var(--brand) 28%,transparent);transition:transform .12s ease,box-shadow .15s ease}.email-cta:hover{text-decoration:none;transform:translateY(-2px);box-shadow:0 12px 32px color-mix(in srgb,var(--brand) 38%,transparent)}.email-cta-label{font-size:13px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;opacity:.85;margin-bottom:6px}.email-cta-addr{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:clamp(20px,3.4vw,26px);font-weight:700;letter-spacing:-.01em}.email-cta-hint{margin-top:8px;font-size:12px;opacity:.85}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:16px 0 8px}@media (max-width: 580px){.contact-grid{grid-template-columns:1fr}}.contact-card{display:flex;flex-direction:column;gap:4px;padding:14px 16px;background:var(--bg);border:1px solid var(--border);border-radius:10px;color:var(--fg);text-decoration:none;transition:border-color .15s ease,transform .1s ease}.contact-card:hover{text-decoration:none;border-color:var(--brand);transform:translateY(-1px)}.contact-card strong{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:14px;color:var(--brand)}.contact-card span{font-size:12px;color:var(--muted)}.footer{border-top:1px solid var(--border);padding:48px 0 24px;background:var(--bg)}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}.footer h4{font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:0 0 12px}.footer ul{list-style:none;padding:0;margin:0}.footer li{padding:4px 0;font-size:14px}.footer a{color:var(--fg)}.footer a:hover{color:var(--brand)}.footer-bottom{margin-top:32px;padding-top:16px;border-top:1px solid var(--border);color:var(--muted)}@media (max-width: 720px){.footer-grid{grid-template-columns:1fr 1fr}}