:root { color-scheme: light dark; --bg: #fafaf8; --ink: #242834; --muted: #636b79; --line: #e2e5eb; --accent: #4c4db0; --panel: #eef0f9; }
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.65 -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; background: var(--bg); color: var(--ink); }
.page { max-width: 1060px; padding: 32px 40px 20px; margin: auto; }
header { display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: flex; align-items: center; gap: 12px; color: var(--ink); text-decoration: none; font-size: 20px; font-weight: 650; letter-spacing: -.5px; white-space: nowrap; }
.brand img { border-radius: 11px; }
nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 2px 12px; font-size: 13px; }
nav a { padding: 8px 0; text-decoration: none; color: var(--muted); }
nav a[aria-current] { color: var(--accent); text-decoration: underline; text-underline-offset: 5px; }
a:focus-visible, summary:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; border-radius: 4px; }
main { max-width: 720px; margin: 94px auto 72px; }
h1 { font-size: clamp(30px, 5vw, 46px); line-height: 1.15; font-weight: 650; letter-spacing: -1.5px; margin: 0 0 20px; }
.intro { font-size: 21px; color: var(--muted); margin: 0 0 42px; }
aside { background: var(--panel); padding: 22px 26px; border-radius: 18px; margin-bottom: 32px; }
aside h2 { font-size: 15px; font-weight: 650; margin: 0 0 6px; }
aside p { font-size: 14px; margin: 0; color: var(--muted); }
.answers { border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; padding: 22px 30px 22px 0; font-weight: 550; line-height: 1.5; position: relative; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::after { content: '+'; position: absolute; right: 4px; top: 20px; color: var(--accent); font-size: 20px; font-weight: 400; }
details[open] summary::after { content: '−'; }
details p { color: var(--muted); margin: -5px 0 24px; }
p, h1, summary { overflow-wrap: anywhere; }
footer { color: var(--muted); font-size: 12px; border-top: 1px solid var(--line); padding-top: 18px; }
@media (max-width: 600px) { .page { padding: 24px 22px 18px; } header { align-items: flex-start; flex-direction: column; gap: 16px; } nav { justify-content: flex-start; gap: 0 15px; } main { margin: 52px auto; } .intro { font-size: 19px; } aside { padding: 20px; } }
@media (prefers-color-scheme: dark) { :root { --bg: #1c1f28; --ink: #eceef5; --muted: #b2bbce; --line: #373c4b; --accent: #b4b7ff; --panel: #292e42; } }

.answer { padding: 24px 0; border-bottom: 1px solid var(--line); scroll-margin-top: 24px; }
.answer h2 { margin: 0 0 10px; font-size: 17px; line-height: 1.5; font-weight: 600; }
.answer h2 a { color: inherit; text-decoration: none; }
.answer h2 a:hover { text-decoration: underline; text-underline-offset: 4px; }
.answer p { color: var(--muted); margin: 0; }
.answer:target { background: var(--panel); border-radius: 12px; padding: 24px 16px; }
@media print { nav { display: none; } .page { padding: 0; } main { margin: 24px 0; } .answer { break-inside: avoid; } }

.privacy p { margin: 1.4em 0; }
.privacy time { color: var(--muted); font-size: 13px; }