/* Shared chrome for sub-pages */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
:root {
  --bg: #ffffff; --bg-soft: #f6f8fb; --bg-soft-2: #eef2f7;
  --ink: #0a0a0a; --ink-2: #3a3a3a; --ink-3: #6f6f72; --ink-4: #a1a1a6;
  --line: #e5e7eb; --line-soft: #eef0f3;
  --blue: #0066ff; --blue-d: #0052cc; --blue-soft: rgba(0,102,255,0.08);
  --green: #1f8a5b;
}
:root[data-theme="dark"] {
  --bg: #0a0a0a; --bg-soft: #131316; --bg-soft-2: #1c1c20;
  --ink: #f3f3f5; --ink-2: #c8c8cc; --ink-3: #8a8a90; --ink-4: #5a5a60;
  --line: #26262b; --line-soft: #1a1a1e;
  --blue: #4d8eff; --blue-d: #2f74ff; --blue-soft: rgba(77,142,255,0.12);
}
body {
  font-family: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", "Apple SD Gothic Neo", sans-serif;
  font-size: 17px; line-height: 1.55; color: var(--ink); background: var(--bg);
  -webkit-font-smoothing: antialiased; font-feature-settings: "ss01","tnum";
}
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
h1,h2,h3,h4,p { margin: 0; }
ul { list-style: none; padding: 0; margin: 0; }
.container { max-width: 1080px; margin: 0 auto; padding: 0 32px; }
@media (max-width: 640px) { .container { padding: 0 22px; } }
.nav { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,0.78); backdrop-filter: saturate(180%) blur(18px); -webkit-backdrop-filter: saturate(180%) blur(18px); border-bottom: 1px solid rgba(0,0,0,0.06); }
:root[data-theme="dark"] .nav { background: rgba(10,10,10,0.72); border-bottom-color: rgba(255,255,255,0.06); }
.nav-inner { height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 24px; max-width: 1200px; margin: 0 auto; padding: 0 32px; }
@media (max-width: 640px) { .nav-inner { padding: 0 22px; } }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; letter-spacing: -0.01em; }
.brand-mark { width: 26px; height: 26px; border-radius: 8px; background: var(--ink); color: var(--bg); display: grid; place-items: center; font-weight: 800; font-size: 14px; }
.nav-links { display: flex; gap: 28px; }
.nav-links a { font-size: 15px; color: var(--ink-2); font-weight: 500; }
.nav-links a:hover { color: var(--ink); }
.nav-cta { display: inline-flex; align-items: center; gap: 8px; background: var(--ink); color: var(--bg); padding: 9px 18px; border-radius: 999px; font-size: 14px; font-weight: 600; }
.nav-cta:hover { background: var(--blue); color: #fff; }
@media (max-width: 760px) { .nav-links { display: none; } }
.tool-btn { width: 36px; height: 36px; border-radius: 999px; display: grid; place-items: center; color: var(--ink-2); }
.tool-btn:hover { background: var(--bg-soft); color: var(--ink); }
.tool-btn svg { width: 16px; height: 16px; }
.nav-tools { display: flex; align-items: center; gap: 6px; }
.page { padding: clamp(64px, 8vw, 120px) 0 clamp(80px, 10vw, 144px); }
.page-head { max-width: 720px; margin-bottom: clamp(48px, 6vw, 80px); }
.eyebrow { display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--blue); margin-bottom: 18px; }
.page-title { font-size: clamp(40px, 5.5vw, 72px); font-weight: 800; letter-spacing: -0.035em; line-height: 1.05; margin-bottom: 18px; text-wrap: balance; }
.page-lead { font-size: clamp(18px, 1.7vw, 22px); color: var(--ink-3); line-height: 1.55; text-wrap: pretty; }
.footer { padding: 48px 0; border-top: 1px solid var(--line-soft); font-size: 13px; color: var(--ink-3); }
.footer .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.footer .ver { font-family: ui-monospace, "SF Mono", Menlo, monospace; letter-spacing: 0.04em; }
</content>