:root { --bg:#F2F5FA; --surface:#FFFFFF; --ink:#12141A; --ink-2:#444B5A; --line:#D6DDEA; --accent:#FF5A1F; color-scheme: light; }
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: "Bricolage Grotesque", system-ui, sans-serif; background: var(--bg); color: var(--ink); line-height: 1.65; -webkit-font-smoothing: antialiased; }
a { color: inherit; }
.top { display: flex; align-items: center; justify-content: space-between; width: min(820px, 100% - 40px); margin: 0 auto; height: 68px; }
.top .logo { display: flex; align-items: center; gap: .6rem; text-decoration: none; font-size: 1.15rem; letter-spacing: -.02em; white-space: nowrap; }
.top .logo svg { width: 26px; height: 26px; }
.top .right { display: flex; gap: .5rem; align-items: center; }
.top .back {font-weight: 700; text-decoration: none; padding: .55rem 1.1rem; border-radius: 999px; box-shadow: inset 0 0 0 1.5px var(--ink); }
.top .back:hover { background: var(--ink); color: var(--bg); }
main { width: min(820px, 100% - 40px); margin: 24px auto 80px; background: var(--surface); border-radius: 28px; padding: clamp(24px, 5vw, 56px); }
h1 { font-size: clamp(2rem, 4.5vw, 2.8rem); line-height: 1.08; letter-spacing: -.03em; font-weight: 800; }
.meta { margin-top: .6rem; color: var(--ink-2); }
h2 { margin-top: 2.4rem; font-size: 1.35rem; letter-spacing: -.02em; font-weight: 800; }
p, li { margin-top: .7rem; color: var(--ink-2); }
ol, ul { padding-left: 1.4rem; }
mark { background: #FFE3D6; color: var(--ink); padding: .05em .35em; border-radius: 6px; font-weight: 700; }
.note { margin-top: 1.5rem; padding: 1rem 1.2rem; border-radius: 14px; background: #E4ECF8; color: var(--ink); }
:focus-visible { outline: 3px solid var(--ink); outline-offset: 3px; }