* { box-sizing: border-box; }
body { margin: 0; color: var(--ink); background: var(--bg); font-family: "Avenir Next", "Segoe UI", sans-serif; line-height: 1.65; }
a { color: var(--accent-dark); text-underline-offset: 3px; }
.help-shell { max-width: 1200px; margin: auto; padding: 30px 22px 60px; }
.help-hero { border: 1px solid var(--line); border-radius: 24px; padding: 28px 32px; background: var(--panel); }
.kicker { color: var(--accent-warm); font-weight: 750; margin: 0; }
.supported-models { color: var(--accent-dark); }
h1, h2, h3 { line-height: 1.2; }
h1 { font: 2.6rem Georgia, serif; margin: 10px 0; }
h2 { font: 1.8rem Georgia, serif; margin: 0 0 18px; }
h3 { font-size: 1.1rem; margin-top: 28px; }
.help-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.help-button { display: inline-block; padding: 9px 14px; border-radius: 9px; background: var(--accent); color: white; text-decoration: none; font-size: .9rem; font-weight: 650; }
.help-button.secondary { background: transparent; border: 1px solid var(--line); color: var(--accent-dark); }
.help-button:hover { filter: brightness(.94); }
.help-layout { display: grid; grid-template-columns: 205px minmax(0,1fr); gap: 28px; margin-top: 28px; align-items: start; }
.help-toc { position: sticky; top: calc(var(--gf-nav-height) + 18px); display: grid; gap: 9px; padding: 10px 0; font-size: .9rem; }
.help-toc a { text-decoration: none; padding: 4px 8px; border-left: 2px solid var(--line); }
.help-toc a:hover { border-color: var(--accent); background: rgba(31,90,79,.06); }
.help-content { min-width: 0; }
section { scroll-margin-top: calc(var(--gf-nav-height) + 18px); margin-bottom: 24px; padding: 26px; background: var(--panel); border: 1px solid var(--line); border-radius: 18px; }
p, li { font-size: .96rem; }
li + li { margin-top: 9px; }
.workflow-links { display: grid; gap: 10px; padding: 14px 0; }
.example-grid { display: grid; gap: 14px; }
.example-card { padding: 18px; border: 1px solid var(--line); border-radius: 12px; background: rgba(255,255,255,.5); }
.example-card h3 { margin: 0; }
.example-card p { margin: 9px 0; }
.example-card .help-actions { gap: 8px 16px; font-size: .88rem; }
.example-card .example-meta { color: var(--muted); font-size: .8rem; }
.reference-card-heading { display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap; }
.reference-model-control { display: flex; align-items: center; gap: 9px; }
.reference-model-control label { font-size: .84rem; color: var(--muted); }
.reference-model-control select { max-width: 100%; padding: 7px 30px 7px 10px; border: 1px solid var(--line); border-radius: 7px; color: var(--accent-dark); background: var(--panel-strong); font: inherit; font-size: .88rem; }
.reference-model-control select:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.result-figure { margin: 20px 0 32px; padding: 18px; border: 1px solid var(--line); border-radius: 12px; background: rgba(255,255,255,.5); }
.result-figure-heading { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
.result-figure-heading h3 { margin: 0; }
.result-figure-heading a { font-size: .85rem; }
.result-figure-image { display: block; }
.result-figure img { display: block; width: 100%; height: auto; border-radius: 8px; border: 1px solid var(--line); }
.result-figure figcaption { color: var(--muted); font-size: .8rem; margin-top: 9px; }
.result-callouts { counter-reset: result-note; list-style: none; padding: 0; display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 16px 22px; margin: 18px 0 0; }
.result-callouts li { counter-increment: result-note; position: relative; padding-left: 32px; margin: 0; font-size: .86rem; }
.result-callouts li::before { content: counter(result-note); position: absolute; left: 0; top: 1px; width: 23px; height: 23px; border-radius: 50%; color: white; background: var(--accent); display: grid; place-items: center; font-weight: 750; font-size: .8rem; }
.result-callouts strong, .result-callouts span { display: block; }
.result-callouts span { margin-top: 4px; }
.table-wrap { overflow-x: auto; }
caption { text-align: left; color: var(--muted); padding: 16px 0 8px; font-size: .84rem; }
.msa-example-links { font-size: .86rem; gap: 8px 18px; }
.msa-alignment-example td code { white-space: nowrap; font-size: .82rem; }
#msa-evidence, #reference-matching { scroll-margin-top: calc(var(--gf-nav-height) + 18px); }
table { width: 100%; border-collapse: collapse; font-size: .88rem; }
th, td { text-align: left; padding: 11px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--accent-dark); }
td:first-child { min-width: 145px; font-weight: 600; }
code { font-size: .86em; overflow-wrap: anywhere; }
pre { overflow-x: auto; padding: 16px; border-radius: 10px; background: rgba(31,90,79,.06); line-height: 1.6; }
pre code { white-space: pre; overflow-wrap: normal; }
details { margin: 12px 0; padding: 12px 14px; border: 1px solid var(--line); border-radius: 10px; }
summary { cursor: pointer; font-weight: 650; }
.service-operation { padding: 16px 0; border-bottom: 1px solid var(--line); }
.service-operation:last-child { border: 0; }
.service-operation h3 { font-size: .96rem; margin: 0 0 6px; }
.service-operation p { font-size: .85rem; margin: 6px 0; }
.service-url { display: block; font-size: .8rem; overflow-wrap: anywhere; }
.service-inputs, .service-output { color: var(--muted); }
.service-method { display: inline-block; color: var(--accent-dark); background: rgba(31,90,79,.09); padding: 2px 7px; border-radius: 4px; margin-right: 8px; }
.error { color: var(--danger); }
@media (max-width: 760px) {
  .help-shell { padding: 18px 12px 40px; }
  .help-hero { padding: 22px; }
  h1 { font-size: 2rem; }
  .help-layout { grid-template-columns: minmax(0,1fr); gap: 16px; }
  .help-toc { position: static; grid-template-columns: repeat(2,minmax(0,1fr)); padding: 0; font-size: .8rem; }
  section { padding: 20px 16px; }
  .result-figure { padding: 12px; }
  .result-callouts { grid-template-columns: minmax(0,1fr); }
}