:root { color-scheme: light; --ink: #18191d; --muted: #656774; --line: #e5e5ec; --violet: #6955c7; }
*, *::before, *::after { box-sizing: border-box; }
html { background: #fbfbfd; scroll-padding-top: 24px; }
body { margin: 0; color: var(--ink); background: linear-gradient(#fff, #fbfbfd 700px); font: 16px/1.7 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; -webkit-font-smoothing: antialiased; }
a { color: #5844ad; text-underline-offset: 4px; }
a:hover { color: #382475; }
:focus-visible { outline: 3px solid #a79add; outline-offset: 5px; }
.skip-link { position: fixed; z-index: 10; left: 16px; top: 12px; padding: 8px 14px; color: #fff; background: var(--violet); transform: translateY(-180%); }
.skip-link:focus { transform: translateY(0); }
.method-header, .method-page, .method-footer { width: min(1100px, calc(100% - 64px)); margin-inline: auto; }
.method-header { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 78px; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 9px; color: var(--ink); font-size: 19px; font-weight: 750; letter-spacing: -.5px; text-decoration: none; }
.brand span { display: grid; place-items: center; width: 30px; height: 30px; color: #fff; border-radius: 9px; background: linear-gradient(145deg, #7967d5, #5845b0); font: 22px Georgia, serif; }
.back-link { font-size: 13px; text-decoration: none; }
.back-link span { margin-left: 8px; }
.method-hero { max-width: 830px; padding: 65px 0 42px; }
.eyebrow, .section-number, .note-label { color: var(--violet); font-size: 11px; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; }
.eyebrow { margin: 0 0 18px; }
h1 { margin: 0; max-width: 790px; font-size: clamp(34px, 4.5vw, 54px); line-height: 1.1; font-weight: 730; letter-spacing: -.045em; text-wrap: balance; }
.lead { max-width: 740px; margin: 23px 0 0; color: var(--muted); font-size: 19px; line-height: 1.65; }
.updated { margin: 19px 0 0; color: var(--muted); font-size: 12px; }
.method-layout { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 68px; padding: 12px 0 64px; align-items: start; }
.contents { position: sticky; top: 28px; display: grid; gap: 5px; }
.contents p { margin: 0 0 9px; color: var(--muted); font-size: 12px; }
.contents a { padding: 7px 0; color: #545563; font-size: 13px; text-decoration: none; line-height: 1.4; }
.contents a:hover { color: var(--violet); text-decoration: underline; }
.method-content { min-width: 0; }
.key-note { padding: 22px 26px; border-left: 3px solid #9c8cdb; background: #f4f1fc; border-radius: 0 12px 12px 0; }
.key-note .note-label { margin: 0 0 8px; }
.key-note p:last-child { margin: 0; color: #443962; }
.method-content > section { padding-top: 48px; }
.section-number { margin: 0 0 10px; }
h2 { margin: 0 0 18px; font-size: 29px; line-height: 1.22; letter-spacing: -.025em; }
h3 { margin: 0 0 9px; font-size: 19px; line-height: 1.4; letter-spacing: -.015em; }
p { margin: 0 0 15px; }
.evidence-item { margin-top: 26px; padding-top: 22px; border-top: 1px solid var(--line); }
.evidence-label { display: inline-block; margin-bottom: 9px; color: var(--muted); font-size: 12px; }
.boundary { color: var(--muted); }
.reading-steps { padding-left: 24px; margin: 0; }
.reading-steps li { padding-left: 7px; margin-bottom: 17px; }
.reading-steps li::marker { color: var(--violet); font-weight: 700; }
.score-note { margin-top: 27px; padding: 24px; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.score-note p { margin-bottom: 0; }
.example { margin-top: 25px; padding-left: 20px; border-left: 2px solid #dbd6ec; }
.example p { margin-bottom: 0; color: #555663; }
.limits-list { padding-left: 20px; margin: 0 0 22px; }
.limits-list li { margin-bottom: 15px; padding-left: 3px; }
.primary-link { display: inline-flex; align-items: center; gap: 20px; margin-top: 10px; padding: 12px 20px; color: #fff; border-radius: 10px; background: var(--violet); font-size: 14px; font-weight: 600; text-decoration: none; }
.primary-link:hover { color: #fff; background: #5844ad; }
.method-content > .handling { margin-top: 44px; padding-top: 26px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
.handling h2 { color: var(--ink); font-size: 20px; }
.method-footer { display: flex; justify-content: space-between; align-items: center; gap: 18px; padding: 23px 0 30px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.method-footer nav { display: flex; flex-wrap: wrap; gap: 18px; }
@media (max-width: 900px) {
  .method-layout { grid-template-columns: 170px minmax(0, 1fr); gap: 32px; }
  .method-hero { padding-top: 46px; }
}
@media (max-width: 680px) {
  .method-header, .method-page, .method-footer { width: calc(100% - 36px); }
  .method-header { min-height: 68px; gap: 12px; }
  .back-link { max-width: 130px; font-size: 12px; text-align: right; line-height: 1.45; }
  .back-link span { display: none; }
  .method-hero { padding: 35px 0 27px; }
  h1 { font-size: 36px; }
  .lead { font-size: 17px; line-height: 1.6; margin-top: 19px; }
  .method-layout { display: block; padding-top: 0; padding-bottom: 35px; }
  .contents { position: static; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2px 15px; margin-bottom: 27px; padding: 18px 0; border-block: 1px solid var(--line); }
  .contents p { grid-column: 1 / -1; margin-bottom: 5px; }
  .contents a { font-size: 12px; }
  .key-note { padding: 18px 20px; }
  .method-content > section { padding-top: 35px; }
  h2 { font-size: 26px; }
  .score-note { padding: 20px; }
  .method-footer { align-items: flex-start; flex-direction: column; gap: 8px; }
}