/* Referencing guides (/referencing): labelled examples, the builder, the hub. Made by scripts/referencing/build.py.
   Each kind of detail has a colour and a shape, and its name on a label, so colour is never the only sign. */
.rf{
  --p-author:#FF8A6B;--p-date:#8DB8F2;--p-title:#CEA4FF;--p-container:#FF8FC3;--p-pub:#FF9F4C;--p-num:#5FC4E8;--p-url:#9CE66F;--p-acc:#E9D9B5;
  --line:#ECE8E0;--wrong:#FFE3D9;--right:#DDF5CC;
}
.rf h2{font-size:clamp(1.75rem,3.4vw,2.25rem);letter-spacing:-.02em}
.rf h3{font-size:1.25rem;letter-spacing:-.01em}
.rf-kicker{display:flex;align-items:center;gap:6px;font:700 .75rem/1.3 var(--mono);letter-spacing:.06em}
.rf-kicker svg{flex:none;fill:none;stroke:currentColor;stroke-width:2.4;stroke-linecap:round}
.rf-small{font-size:.875rem;line-height:1.45;color:var(--muted)}
.rf-mono{font:700 .75rem/1.5 var(--mono);color:var(--muted)}
.rf-note{margin-top:14px;font-size:1rem;color:var(--muted)}

/* The hero */
.rf-hero{padding:20px 0 clamp(36px,5vw,56px)}
.rf-hero-grid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:clamp(20px,4vw,40px);align-items:end}
.rf-hero h1{font-size:clamp(2.375rem,6vw,4rem);margin-top:12px}
.rf-lede{margin-top:16px;font-size:clamp(1.0625rem,1.8vw,1.1875rem);line-height:1.5;max-width:42em}
.rf-hero-chips{list-style:none;padding:0;margin:18px 0 0;display:flex;flex-wrap:wrap;gap:8px}
.rf-hero-chips li{padding:8px 14px;border-radius:999px;background:rgba(255,253,248,.16);font:700 .875rem/1.3 var(--body)}
.rf-crumbs ol{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:2px 8px;font:700 .875rem/1.5 var(--body)}
.rf-crumbs li+li::before{content:"\203A";margin-right:8px;opacity:.8}
.rf-crumbs a{color:inherit}

/* Pip's tips */
.rf-tip{display:flex;gap:12px;align-items:flex-start;font-size:.9375rem;line-height:1.45}
.rf-tip .rf-pip{flex:none}
.rf-tip-card{border-radius:22px;padding:16px 18px;align-self:end}
.rf-pip{display:block;flex:none}

.rf-body>*+*{margin-top:clamp(40px,6vw,64px)}
.rf-body{padding-top:clamp(36px,5vw,56px);padding-bottom:clamp(40px,6vw,64px)}
.rf-section>p{margin-top:8px;color:var(--muted);max-width:44em}
.rf-section>h3{margin-top:28px}
.rf-paper{background:var(--paper);border-radius:28px;padding:clamp(22px,4vw,40px)}

/* The labelled example */
.rf-pattern{margin-top:10px!important;font:700 .875rem/1.6 var(--mono);color:var(--muted)!important;overflow-wrap:anywhere}
.rf-stage{margin-top:20px;background:var(--cobalt);border-radius:24px;padding:clamp(22px,4vw,48px) clamp(14px,3.5vw,40px);display:flex;justify-content:center}
.rf-sticker{margin:0;background:var(--cream);border:3px solid var(--ink);border-radius:22px;padding:clamp(16px,2.6vw,28px) clamp(14px,2.6vw,30px);box-shadow:8px 8px 0 var(--ink);transform:rotate(-1deg);max-width:1020px;width:100%}
.rf-section>.rf-sticker{margin-top:16px;transform:none;box-shadow:6px 6px 0 var(--ink)}
@media (prefers-reduced-motion:reduce){.rf-sticker{transform:none}}
.rf-parts{display:flex;flex-wrap:wrap;gap:18px 6px;align-items:flex-end;margin:0;font-size:clamp(1.0625rem,2vw,1.375rem);line-height:1.35}
.pt{display:inline-flex;flex-direction:column;gap:7px;align-items:flex-start;max-width:100%}
.pt-tag{display:flex;align-items:center;gap:6px;font:700 .75rem/1.2 var(--mono);letter-spacing:.04em;color:var(--ink)}
.pt-text{padding:2px 7px;border-radius:8px;border-bottom:4px solid;overflow-wrap:anywhere}
.pt-join{align-self:flex-end;padding-bottom:6px;overflow-wrap:anywhere}
.sh{flex:none}
.sh path{stroke:var(--ink);stroke-width:1.2}
.sh-author path{fill:var(--p-author)}.sh-date path{fill:var(--p-date)}.sh-title path{fill:var(--p-title)}.sh-container path{fill:var(--p-container)}
.sh-pub path{fill:var(--p-pub)}.sh-num path{fill:var(--p-num)}.sh-url path{fill:var(--p-url)}.sh-acc path{fill:var(--p-acc)}
.pt-author .pt-text{background:#FF8A6B55;border-color:var(--p-author)}.pt-date .pt-text{background:#8DB8F255;border-color:var(--p-date)}
.pt-title .pt-text{background:#CEA4FF55;border-color:var(--p-title)}.pt-container .pt-text{background:#FF8FC355;border-color:var(--p-container)}
.pt-pub .pt-text{background:#FF9F4C55;border-color:var(--p-pub)}.pt-num .pt-text{background:#5FC4E855;border-color:var(--p-num)}
.pt-url .pt-text{background:#9CE66F55;border-color:var(--p-url)}.pt-acc .pt-text{background:#E9D9B577;border-color:#C9B78F}

/* The rule for each part */
.rf-rules{list-style:none;padding:0;margin:20px 0 0;display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:14px}
.rf-rule{border:2px solid var(--line);border-radius:20px;padding:18px;display:flex;flex-direction:column;gap:8px}
.rf-rule-n{display:flex;align-items:center;gap:8px;font:700 .75rem/1.3 var(--mono);letter-spacing:.04em;text-transform:uppercase}
.rf-rule strong{font-size:1rem;line-height:1.45}
.rf-rule>span:last-child{font-size:.875rem;line-height:1.45;color:var(--muted)}

/* Two places */
.rf-two{margin-top:20px;display:grid;grid-template-columns:minmax(0,1fr) 60px minmax(0,1fr);align-items:center}
.rf-box{background:var(--paper);border-radius:22px;padding:24px;display:flex;flex-direction:column;gap:10px;height:100%}
.rf-essay{font-size:1.1875rem;line-height:1.6}
.rf-ref{font-size:1.0625rem;line-height:1.6;overflow-wrap:anywhere}
.rf-hi{background:#FF8A6B55;border-bottom:4px solid var(--p-author);padding:1px 4px;border-radius:6px;font-weight:700}
sup.rf-hi{padding:0 3px}
.rf-arrow{justify-self:center;fill:none;stroke:var(--ink);stroke-width:3;stroke-linecap:round;stroke-linejoin:round}
.rf-cite-line{margin-top:10px;font-size:1rem;line-height:1.55}

/* The builder */
.rf-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:16px 20px;flex-wrap:wrap}
.rf-head-row p{margin-top:6px;color:var(--muted)}
.rf-btns{display:flex;gap:8px;flex-wrap:wrap}
.rf-pill{min-height:44px;padding:0 18px;border-radius:999px;border:2px solid var(--ink);background:var(--cream);color:var(--ink);font:700 .9375rem/1 var(--body);cursor:pointer}
.rf-pill:hover{background:var(--banana)}
.rf-pill[aria-pressed="true"]{background:var(--ink);color:var(--cream)}
.rb{margin-top:20px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:20px;align-items:start}
.rb-form{background:var(--cream);border-radius:22px;padding:24px;display:flex;flex-direction:column;gap:16px}
.rb-row{display:flex;flex-direction:column;gap:6px}
.rb-row label{font-weight:700;font-size:1rem}
.rb-row input{min-height:52px;border-radius:14px;border:2px solid var(--ink);padding:0 14px;font:400 1.0625rem/1.3 var(--body);background:var(--cream);color:var(--ink);width:100%}
.rb-row small{font-size:.875rem;line-height:1.4;color:var(--muted)}
.rb-row.need input{background:#FFF7D1;border-style:dashed}
.rb-checks{display:flex;flex-wrap:wrap;gap:6px 18px;margin-top:-6px}
.rb-checks label{display:flex;align-items:center;gap:8px;min-height:44px;font-size:.9375rem;cursor:pointer}
.rb-checks input{width:20px;height:20px;accent-color:var(--cobalt);margin:0}
.rb-out{display:flex;flex-direction:column;gap:14px;position:sticky;top:96px}
.rb-card{background:var(--cream);border:3px solid var(--ink);border-radius:22px;padding:24px;display:flex;flex-direction:column;gap:14px;align-items:flex-start}
.rb-card-plain{border:0}
.rb-card-head{display:flex;align-items:center;gap:10px;width:100%;flex-wrap:wrap}
.rb-card-head .rf-kicker{flex:1}
.rb-status{font:700 .8125rem/1.2 var(--body);padding:6px 10px;border-radius:999px;background:var(--p-url)}
.rb-status.needs{background:var(--banana)}
.rb-ref,.rb-bib{font-size:1.1875rem;line-height:1.7;overflow-wrap:anywhere}
.rb-cite{font-size:1.375rem;font-weight:700;overflow-wrap:anywhere}
.rb mark.gap{background:var(--banana);color:var(--ink);outline:2px dashed var(--ink);outline-offset:1px;border-radius:5px;padding:0 4px;font-weight:700}
.rb mark.gap::before{content:"needs: "}
.rb-busy .rb-ref{opacity:.6}

/* What if, and mistakes */
.rf-wis{list-style:none;padding:0;margin:20px 0 0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.rf-wi{border:2px solid var(--line);border-radius:22px;padding:22px;display:flex;flex-direction:column;gap:10px}
.rf-wi h3{font-size:1.5rem}
.rf-wi-ex{background:var(--paper);border-radius:14px;padding:14px;font-size:.9375rem;line-height:1.55;overflow-wrap:anywhere}
.rf-mistakes{list-style:none;padding:0;margin:20px 0 0;display:grid;gap:22px}
.rf-mistakes h3{font-size:1.125rem;font-family:var(--body);font-weight:700;letter-spacing:0}
.rf-pair{margin-top:10px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.rf-bad,.rf-good{border-radius:18px;padding:16px 18px;display:flex;flex-direction:column;gap:6px;font-size:1rem;line-height:1.5;overflow-wrap:anywhere}
.rf-bad{background:var(--wrong)}.rf-good{background:var(--right)}

/* Questions and your university's version */
.rf-qa{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;align-items:start}
.rf-versions{border-radius:24px;padding:26px;display:flex;flex-direction:column;gap:12px}
.rf-versions h2{font-size:1.5rem}
.rf-faq details{border-bottom:2px solid var(--line)}
.rf-faq summary{min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-weight:700;font-size:1.0625rem;cursor:pointer;list-style:none;padding:8px 0}
.rf-faq summary::-webkit-details-marker{display:none}
.rf-faq summary::after{content:"+";font-size:1.4rem;flex:none}
.rf-faq details[open] summary::after{content:"\2212"}
.rf-faq details p{margin:0 0 16px;color:var(--muted);overflow-wrap:anywhere}
.rf-faq{margin-top:8px}

/* Links */
.rf-chips{list-style:none;padding:0;margin:12px 0 0;display:flex;flex-wrap:wrap;gap:8px}
.rf-chips a{min-height:44px;display:flex;align-items:center;padding:0 16px;border-radius:999px;background:var(--cream);color:var(--ink);font-weight:700;font-size:.9375rem;text-decoration:none;border:2px solid var(--line)}
.rf-chips a:hover{border-color:var(--ink)}
.rf-links{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:28px}
.rf-links h2,.rf-howto h2{font-size:1.25rem;font-family:var(--body);font-weight:700;letter-spacing:0}
.rf-howto{border:2px solid var(--cobalt);border-radius:24px;padding:clamp(20px,3.5vw,32px);background:rgba(47,69,201,.04)}
.rf-howto p{margin-top:6px;color:var(--muted)}
.rf-cta{border-radius:24px;padding:24px 28px;display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.rf-cta>div{flex:1;min-width:260px}
.rf-cta h2{font-size:1.5rem}
.rf-cta p{margin-top:4px}
.rf-body>.rf-legal{margin-top:16px;font-size:.875rem;line-height:1.5;color:var(--muted);max-width:60em}

/* A style's source guides */
.rf-sources{list-style:none;padding:0;margin:20px 0 0;display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}
.rf-sources a{height:100%;min-height:120px;text-decoration:none;color:var(--ink);background:var(--cream);border-radius:20px;padding:18px;display:flex;flex-direction:column;gap:8px;border:2px solid transparent}
.rf-sources a:hover{border-color:var(--ink)}
.rf-sources strong{font:800 1.3125rem/1.1 var(--head)}
.rf-more{margin-top:auto;font-weight:700;font-size:.875rem;color:var(--cobalt)}

/* The hub */
.rf-search{margin-top:22px;display:flex;align-items:center;gap:10px;background:var(--cream);border-radius:999px;min-height:60px;padding:6px 6px 6px 22px;max-width:620px}
.rf-search input{flex:1;min-width:0;border:0;background:transparent;font:400 1.0625rem/1.3 var(--body);color:var(--ink);min-height:44px}
.rf-search input:focus{outline:none}
.rf-search:focus-within{outline:3px solid var(--banana);outline-offset:3px}
.rf-hub-card{background:var(--cream);color:var(--ink);border:3px solid var(--ink);border-radius:22px;padding:18px;box-shadow:7px 7px 0 var(--ink);transform:rotate(-3deg);display:flex;flex-direction:column;gap:12px}
.rf-hub-card .rf-sticker{border:0;box-shadow:none;transform:none;padding:0}
.rf-hub-card .rf-parts{font-size:.9375rem;gap:12px 5px}
.rf-hub-card .pt-tag{font-size:.625rem}
@media (prefers-reduced-motion:reduce){.rf-hub-card{transform:none}}
.rf-picker{margin-top:20px;display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:20px}
.rf-q{font-weight:700;font-size:1.0625rem}
.rf-subjects{list-style:none;padding:0;margin:12px 0 0;display:flex;flex-wrap:wrap;gap:8px}
.rf-subjects .rf-pill{min-height:48px}
.rf-answer{border-radius:22px;padding:24px;display:flex;flex-direction:column;gap:10px}
.rf-answer .rf-kicker{color:var(--banana)}
.rf-answer-name{font:800 2.25rem/1 var(--head);text-decoration:none}
.on-ink .rf-small{color:rgba(255,253,248,.86)}
.rf-styles{list-style:none;padding:0;margin:20px 0 0;display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.rf-styles a{height:100%;text-decoration:none;color:var(--ink);border:2px solid var(--line);border-radius:22px;padding:20px;display:flex;flex-direction:column;gap:10px}
.rf-styles a:hover{border-color:var(--ink)}
.rf-styles strong{font:800 1.625rem/1 var(--head)}
.rf-styles a>span:nth-child(2){font-size:.875rem;line-height:1.45;color:var(--muted)}
.rf-mini{background:var(--paper);border-radius:12px;padding:10px 12px;display:flex;flex-direction:column;gap:2px}
.rf-mini .rf-kicker{font-size:.625rem}
.rf-two-col{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:24px;align-items:start}
.rf-two-col h2{font-size:1.75rem}
.rf-list-links{list-style:none;padding:0;margin:14px 0 0;display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:8px}
.rf-outline{grid-template-columns:minmax(0,1fr)}
.rf-list-links a{min-height:52px;display:flex;align-items:center;padding:8px 16px;border-radius:16px;background:var(--paper);color:var(--ink);font-weight:700;font-size:.9375rem;text-decoration:none;border:2px solid transparent}
.rf-outline a{background:transparent;border-color:var(--line)}
.rf-list-links a:hover{border-color:var(--ink)}
.rf-all{list-style:none;padding:0;margin:16px 0 0;columns:3 240px;column-gap:20px}
.rf-all li{break-inside:avoid;padding:3px 0}
.rf-all a{display:inline-flex;align-items:center;min-height:32px;font-weight:600}
.rf-count:empty{display:none}

/* Comparisons */
.rf-diffs{margin:14px 0 0;padding-left:1.2em;display:grid;gap:8px;max-width:48em}
.rf-table-wrap{margin-top:16px}
.rf-compare{border-collapse:collapse;width:100%;min-width:720px;font-size:.9375rem;line-height:1.55}
.rf-compare th,.rf-compare td{text-align:left;vertical-align:top;padding:14px 16px;border-bottom:1px solid rgba(20,18,26,.12)}
.rf-compare thead th{background:var(--paper);font:800 1.125rem/1.2 var(--head)}
.rf-compare td p{margin:4px 0 10px;overflow-wrap:anywhere}
.rf-compare tbody th{width:150px}

/* Phones and tablets */
@media (max-width:900px){
  .rf-hero-grid,.rb,.rf-qa,.rf-picker,.rf-two-col{grid-template-columns:minmax(0,1fr)}
  .rb-out{position:static}
  .rf-two{grid-template-columns:minmax(0,1fr);gap:10px}
  .rf-arrow{transform:rotate(90deg)}
  .rf-hub-card{max-width:380px;transform:rotate(-2deg)}
}
@media (max-width:640px){
  .rf-wis,.rf-pair{grid-template-columns:minmax(0,1fr)}
  .rf-stage{padding:18px 10px}
  .rf-sticker{box-shadow:5px 5px 0 var(--ink);transform:none}
  .rf-parts{gap:14px 5px}
  .rf-paper{border-radius:22px}
  .rf-search{padding-left:16px}
  .rf-search .btn{padding:10px 16px}
}

/* High contrast (Reading comfort) */
html.rc-hc .rf :is(.rf-rule,.rf-wi,.rf-box,.rb-form,.rf-styles a,.rf-sources a,.rf-list-links a,.rf-chips a){border:2px solid var(--ink)}
html.rc-hc .pt-text{background:transparent}