:root { color: #071f43; background: #fff; font-family: Inter, "Helvetica Neue", Arial, sans-serif; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: #fff; }
a { color: #0b48aa; }
code { font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; }
.guide-header { min-height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 13px 31px; border-bottom: 1px solid #d8dee8; }
.guide-wordmark { color: #071f43; font-size: 27px; font-weight: 760; letter-spacing: -1px; text-decoration: none; }
.back-link { color: #0b48aa; font-size: 14px; font-weight: 680; text-decoration: none; }
.back-link:hover { text-decoration: underline; text-underline-offset: 3px; }
.guide-shell { display: grid; grid-template-columns: 230px minmax(0, 820px); justify-content: center; gap: 72px; padding: 54px 30px 90px; }
.guide-nav { position: sticky; top: 32px; align-self: start; display: grid; gap: 11px; padding: 4px 0; }
.guide-nav strong { margin-bottom: 8px; color: #071f43; font-size: 14px; }
.guide-nav a { color: #51637b; font-size: 13px; text-decoration: none; }
.guide-nav a:hover { color: #0b48aa; }
.guide-content { min-width: 0; }
.guide-intro { padding-bottom: 39px; border-bottom: 1px solid #dce2ea; }
h1 { max-width: 700px; margin: 0; color: #071f43; font-size: clamp(37px, 5vw, 58px); line-height: 1.04; letter-spacing: -2.2px; }
.guide-intro > p { max-width: 680px; margin: 19px 0 0; color: #53647b; font-size: 18px; line-height: 1.55; }
.privacy-note { margin-top: 25px; border-left: 3px solid #397f50; padding: 11px 15px; color: #315344; background: #f2f8f4; font-size: 14px; line-height: 1.5; }
section { padding: 40px 0; border-bottom: 1px solid #e0e5ec; }
section:last-child { border-bottom: 0; }
h2 { margin: 0 0 15px; color: #0b294f; font-size: 25px; letter-spacing: -.6px; }
h3 { margin: 26px 0 8px; color: #17375f; font-size: 16px; }
p, li { color: #506179; font-size: 15px; line-height: 1.65; }
ol, ul { margin: 0; padding-left: 23px; }
li + li { margin-top: 7px; }
.section-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; }
.section-heading h2 { margin-bottom: 7px; }
.section-heading p { margin: 0 0 18px; }
.schema-link { flex: 0 0 auto; border: 1px solid #bbc7d7; border-radius: 5px; padding: 9px 12px; font-size: 13px; font-weight: 680; text-decoration: none; }
.copy-button { flex: 0 0 auto; border: 1px solid #0b48aa; border-radius: 5px; padding: 9px 13px; color: #fff; background: #0b48aa; font: inherit; font-size: 13px; font-weight: 700; cursor: pointer; }
.copy-button:hover { background: #083b8d; }
.copy-button:focus-visible { outline: 3px solid #aac7f2; outline-offset: 2px; }
pre { max-width: 100%; overflow: auto; margin: 0; border: 1px solid #d7dee7; border-radius: 6px; padding: 21px 23px; color: #19324f; background: #f7f9fb; font-size: 13px; line-height: 1.55; tab-size: 2; }
.field-table { border-top: 1px solid #d7dee7; }
.field-row { display: grid; grid-template-columns: 190px 80px minmax(0, 1fr); gap: 18px; padding: 14px 4px; border-bottom: 1px solid #e2e7ed; color: #506179; font-size: 13px; line-height: 1.5; }
.field-header { color: #263d5d; background: #f8f9fb; font-size: 11px; font-weight: 750; text-transform: uppercase; letter-spacing: .04em; }
.field-row > code { color: #103d78; font-weight: 700; }
.prompt-section { padding-top: 34px; }
.prompt-section pre { border-color: #b9cbe4; background: #f5f8fd; }
.prompt-heading p { max-width: 620px; margin: 0 0 18px; }
.prompt-notes { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; margin-top: 18px; }
.prompt-notes p { margin: 0; font-size: 13px; }
@media (max-width: 850px) {
  .guide-shell { display: block; padding: 36px 22px 70px; }
  .guide-nav { position: static; grid-template-columns: repeat(2, minmax(0, 1fr)); margin-bottom: 38px; }
  .guide-nav strong { grid-column: 1 / -1; }
}
@media (max-width: 600px) {
  .guide-header { padding: 15px 17px; }
  .guide-wordmark { font-size: 22px; }
  .guide-shell { padding-inline: 17px; }
  .field-row { grid-template-columns: 1fr; gap: 5px; }
  .field-header { display: none; }
  .section-heading { display: block; }
  .schema-link { display: inline-block; margin-bottom: 18px; }
  .copy-button { margin-bottom: 18px; }
  .prompt-notes { grid-template-columns: 1fr; gap: 10px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }