/* PromptLabster: Nova-structure layout. Catalog = filters drawer + card grid; paper = list | content | details. */
:root {
  --r-supertop: #B7791F; --r-supertop-bg: #FBEFD5;
  --r-excellent: #0B6F6A; --r-excellent-bg: #D4EEEA;
  --r-great: #2F7D3A; --r-great-bg: #DDF0DF;
  --r-good: #2563A8; --r-good-bg: #DCE8F7;
  --r-above: #6B4FB0; --r-above-bg: #E8E1F7;
  --r-mid: #56657A; --r-mid-bg: #E4E8EE;
  --overlay: rgba(10, 16, 15, .45);
}
@media (prefers-color-scheme: dark) {
  :root {
    --r-supertop: #F2C265; --r-supertop-bg: #3B2F16;
    --r-excellent: #4FC7BD; --r-excellent-bg: #16322F;
    --r-great: #72C77F; --r-great-bg: #1B3120;
    --r-good: #7FB2EE; --r-good-bg: #1A2A40;
    --r-above: #B19BEB; --r-above-bg: #2A2340;
    --r-mid: #A3B0C2; --r-mid-bg: #242B35;
    --overlay: rgba(0, 0, 0, .6);
  }
}
.score-supertop { --rc: var(--r-supertop); --rb: var(--r-supertop-bg); }
.score-excellent { --rc: var(--r-excellent); --rb: var(--r-excellent-bg); }
.score-great { --rc: var(--r-great); --rb: var(--r-great-bg); }
.score-good { --rc: var(--r-good); --rb: var(--r-good-bg); }
.score-above { --rc: var(--r-above); --rb: var(--r-above-bg); }
.score-mid, .score-below { --rc: var(--r-mid); --rb: var(--r-mid-bg); }
.score, .score.hi { background: var(--rb); color: var(--rc); }

/* header */
.head-row { max-width: none; min-height: 52px; padding: 0 20px; }
.logo { display: flex; align-items: baseline; gap: 12px; text-decoration: none; }
.logo .wordmark { color: var(--ink); }
.logo-count { font: 12px var(--f-mono); color: var(--muted); border: 1px solid var(--line); border-radius: 999px; padding: 2px 8px; }
.nav { align-items: center; }
.nav .nav-cta { background: var(--ink); color: var(--paper); padding: 6px 12px; border-radius: 6px; }

/* catalog */
.listing-app { display: grid; grid-template-columns: 300px minmax(0, 1fr); min-height: calc(100vh - var(--head-h, 52px)); }
.filters-drawer { position: sticky; top: var(--head-h, 52px); height: calc(100vh - var(--head-h, 52px)); overflow-y: auto; border-right: 1px solid var(--line); background: var(--surface); }
.fd-form { display: flex; flex-direction: column; min-height: 100%; }
.fd-head { display: flex; align-items: center; gap: 10px; padding: 16px 18px 12px; border-bottom: 1px solid var(--line); }
.fd-head h2 { margin: 0; font-size: 17px; flex: 1; }
.fd-count, .fd-sel { font: 500 11px/1 var(--f-mono); background: var(--accent); color: var(--accent-ink); border-radius: 999px; padding: 3px 7px; margin-left: 6px; }
.fd-reset { font: 13px var(--f-mono); }
.fd-close { display: none; background: none; border: 0; font-size: 26px; line-height: 1; color: var(--muted); cursor: pointer; }
.fd-search { padding: 12px 18px; border-bottom: 1px solid var(--line); }
.fd-search input, .fd-find { width: 100%; font: 14px var(--f-display); padding: 8px 10px; border: 1px solid var(--line); border-radius: 6px; background: var(--paper); color: var(--ink); }
.fd-find { display: block; margin: 0 18px 8px; width: calc(100% - 36px); }
.fd-section { border-bottom: 1px solid var(--line); }
.fd-section > summary { cursor: pointer; list-style: none; padding: 13px 18px; font: 600 14px var(--f-display); display: flex; align-items: center; }
.fd-section > summary::-webkit-details-marker { display: none; }
.fd-section > summary::after { content: "+"; margin-left: auto; font: 16px var(--f-mono); color: var(--muted); }
.fd-section[open] > summary::after { content: "\2013"; }
.fd-options { display: flex; flex-direction: column; gap: 2px; padding: 0 12px 12px; }
.fd-scroll { max-height: 240px; overflow-y: auto; }
.fd-opt { display: flex; align-items: center; gap: 8px; padding: 5px 6px; border-radius: 5px; font: 14px/1.3 var(--f-display); cursor: pointer; }
.fd-opt:hover { background: var(--paper); }
.fd-opt input { accent-color: var(--accent); flex: none; }
.fd-opt span { flex: 1; }
.fd-opt em { font: normal 12px var(--f-mono); color: var(--muted); }
.fd-none { font: 13px var(--f-mono); color: var(--muted); padding: 4px 6px; margin: 0; }
.fd-range { padding: 0 18px 16px; }
.fd-range-val { font: 500 15px var(--f-mono); margin-bottom: 8px; }
.fd-range-track { position: relative; height: 22px; }
.fd-range-track::before { content: ""; position: absolute; left: 0; right: 0; top: 9px; height: 4px; border-radius: 2px; background: var(--line); }
.fd-range-track input { position: absolute; inset: 0; width: 100%; appearance: none; -webkit-appearance: none; background: none; pointer-events: none; margin: 0; }
.fd-range-track input::-webkit-slider-thumb { -webkit-appearance: none; pointer-events: auto; width: 18px; height: 18px; border-radius: 50%; background: var(--accent); border: 2px solid var(--surface); cursor: pointer; }
.fd-range-track input::-moz-range-thumb { pointer-events: auto; width: 16px; height: 16px; border-radius: 50%; background: var(--accent); border: 2px solid var(--surface); cursor: pointer; }
.fd-range-marks { display: flex; justify-content: space-between; font: 11px var(--f-mono); color: var(--muted); margin-top: 6px; }
.fd-apply { position: sticky; bottom: 0; margin-top: auto; padding: 12px 18px; background: var(--surface); border-top: 1px solid var(--line); }
.fd-apply button { width: 100%; font: 700 15px var(--f-display); padding: 10px; border: 0; border-radius: 6px; background: var(--ink); color: var(--paper); cursor: pointer; }

.listing-main { padding: 24px 28px 0; min-width: 0; }
.page-header { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; }
.page-header h1 { margin: 0; font-size: clamp(24px, 3vw, 32px); font-weight: 800; }
.page-subtitle { margin: 4px 0 0; color: var(--muted); font-size: 16px; }
.cta-compact { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); border: 1px solid var(--line); background: var(--surface); border-radius: 10px; padding: 8px 14px 8px 8px; }
.cta-compact:hover { border-color: var(--accent); }
.cta-icon { width: 34px; height: 34px; border-radius: 8px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); }
.cta-compact b { display: block; font: 600 14px var(--f-display); }
.cta-compact small { font: 12px var(--f-mono); color: var(--muted); }
.listing-subheader { position: sticky; top: var(--head-h, 52px); z-index: 4; background: var(--paper); display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px; padding: 14px 0; margin-top: 16px; border-bottom: 1px solid var(--line); }
.found { font: 14px var(--f-mono); color: var(--muted); }
.found b { color: var(--ink); font-weight: 500; }
.sub-controls { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.view-toggle { display: flex; border: 1px solid var(--line); border-radius: 6px; overflow: hidden; }
.view-toggle a { display: grid; place-items: center; width: 34px; height: 32px; color: var(--muted); }
.view-toggle a[aria-current="true"] { background: var(--ink); color: var(--paper); }
.sort-select, .per-page select { font: 14px var(--f-display); padding: 7px 10px; border: 1px solid var(--line); border-radius: 6px; background: var(--surface); color: var(--ink); }
.filters-btn { display: none; font: 600 14px var(--f-display); padding: 7px 12px; border: 1px solid var(--line); border-radius: 6px; background: var(--surface); color: var(--ink); cursor: pointer; }

.research-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 16px; padding-top: 18px; }
.research-grid.as-list { grid-template-columns: 1fr; }
.research-card { display: flex; flex-direction: column; gap: 10px; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 18px 20px; cursor: pointer; transition: border-color .15s; }
.research-card:hover { border-color: var(--accent); }
.research-card .card-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 14px; }
.research-card .card-title { margin: 0; font: 600 18px/1.3 var(--f-display); letter-spacing: -.01em; }
.research-card .card-title a { color: var(--ink); text-decoration: none; }
.key-result-preview { color: var(--muted); font-size: 16px; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 5; -webkit-box-orient: vertical; overflow: hidden; }
.as-list .key-result-preview { -webkit-line-clamp: 3; }
.key-result-preview strong { color: var(--ink); }
.key-result-preview .highlight-yellow, .key-essence .highlight-yellow { background: var(--hl-yellow); }
.key-result-preview .highlight-blue, .key-essence .highlight-blue { background: var(--hl-blue); }
.key-result-preview .highlight-green, .key-essence .highlight-green { background: var(--hl-green); }
.card-footer { margin-top: auto; display: flex; flex-wrap: wrap; gap: 6px 14px; align-items: center; font: 12.5px var(--f-mono); color: var(--muted); }
.card-date { display: inline-flex; align-items: center; gap: 6px; }
.card-cap { border: 1px solid var(--line); border-radius: 4px; padding: 2px 7px; }
.empty-state { text-align: center; padding: 60px 20px; }
.empty-state h2 { margin: 0 0 8px; }
.empty-state p { color: var(--muted); max-width: 48ch; margin: 0 auto; }
.listing-footer { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; padding-top: 24px; }
.pagination { display: flex; flex-wrap: wrap; gap: 6px; }
.pagination a, .pagination .gap { font: 14px var(--f-mono); padding: 6px 11px; border: 1px solid var(--line); border-radius: 5px; text-decoration: none; color: var(--ink); background: var(--surface); }
.pagination .gap { border-color: transparent; background: none; }
.pagination a[aria-current="page"] { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.per-page { display: flex; align-items: center; gap: 8px; font: 13px var(--f-mono); color: var(--muted); margin-left: auto; }
.listing-main .subscribe { margin-bottom: 28px; }
.drawer-overlay { display: none; }

/* paper: three columns */
.app { display: grid; grid-template-columns: 280px minmax(0, 1fr) 360px; align-items: start; }
.sidebar-left, .sidebar-right { position: sticky; top: var(--head-h, 52px); height: calc(100vh - var(--head-h, 52px)); overflow-y: auto; background: var(--surface); }
.sidebar-left { border-right: 1px solid var(--line); display: flex; flex-direction: column; }
.sidebar-right { border-left: 1px solid var(--line); }
.sl-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 12px 14px; border-bottom: 1px solid var(--line); position: sticky; top: 0; background: var(--surface); z-index: 1; }
.sl-sort { display: flex; border: 1px solid var(--line); border-radius: 6px; overflow: hidden; }
.sl-sort button { font: 500 12.5px var(--f-mono); padding: 5px 10px; border: 0; background: none; color: var(--muted); cursor: pointer; }
.sl-sort button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
.sl-all { font: 12.5px var(--f-mono); }
.article-list { list-style: none; margin: 0; padding: 6px; display: flex; flex-direction: column; gap: 2px; }
.article-item { display: flex; gap: 10px; align-items: flex-start; padding: 8px; border-radius: 6px; text-decoration: none; color: var(--ink); }
.article-item:hover { background: var(--paper); }
.article-item.active { background: var(--accent-soft); }
.ai-score { flex: none; min-width: 30px; text-align: center; font: 500 12px/1 var(--f-mono); padding: 5px 4px; border-radius: 4px; background: var(--rb); color: var(--rc); font-variant-numeric: tabular-nums; }
.ai-body { min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.ai-title { font: 500 13.5px/1.3 var(--f-display); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ai-date { font: 11.5px var(--f-mono); color: var(--muted); }
.sl-foot { margin-top: auto; display: flex; flex-direction: column; gap: 6px; padding: 12px 14px 16px; border-top: 1px solid var(--line); font: 12.5px var(--f-mono); color: var(--muted); }
.sl-more { font: 600 13px var(--f-display); padding: 7px; border: 1px solid var(--line); border-radius: 6px; background: var(--paper); color: var(--ink); cursor: pointer; }

.content { min-width: 0; padding: 0 32px 40px; }
.content-subheader { position: sticky; top: var(--head-h, 52px); z-index: 3; background: var(--paper); border-bottom: 1px solid var(--line); }
.content-subheader .tabs { margin: 0; border: 0; position: static; }
.article-header { max-width: 820px; padding-top: 24px; }
.meta-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.meta-tag { font: 12.5px var(--f-mono); color: var(--muted); border: 1px solid var(--line); border-radius: 4px; padding: 3px 8px; text-decoration: none; background: var(--surface); }
.meta-tag[class*="score-"] { background: var(--rb); color: var(--rc); border-color: transparent; font-weight: 500; }
.article-header h1 { font-weight: 800; font-size: clamp(26px, 3.4vw, 40px); line-height: 1.08; margin: 14px 0 18px; }
.key-essence { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 18px 20px; }
.key-essence p { margin: 0; font-size: 18.5px; line-height: 1.55; }
.ke-label, .ib-label { font: 500 11.5px var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--accent); margin-bottom: 8px; }
.content .panel { max-width: 820px; padding-top: 20px; }
.section-card { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 20px 24px; margin-bottom: 14px; }
.sc-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 6px; }
.sc-num { font: 500 12px var(--f-mono); color: var(--accent); }
.prose .sc-head h2, .sc-head h2 { margin: 0; font-size: 22px; }
.sc-body > :first-child { margin-top: 8px; }
.sc-body > :last-child { margin-bottom: 0; }
.tldr-card { background: var(--accent-soft); border-color: transparent; }
.content .subscribe { max-width: 820px; }

.sr-head { display: flex; align-items: center; padding: 0 14px; border-bottom: 1px solid var(--line); position: sticky; top: 0; background: var(--surface); z-index: 1; }
.sr-tabs { display: flex; gap: 4px; }
.sr-tabs button { font: 600 14px var(--f-display); padding: 13px 10px; border: 0; border-bottom: 2px solid transparent; background: none; color: var(--muted); cursor: pointer; }
.sr-tabs button[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--accent); }
.sr-close { display: none; margin-left: auto; background: none; border: 0; font-size: 26px; color: var(--muted); cursor: pointer; }
.sidebar-right .panel { padding: 16px 18px 28px; display: flex; flex-direction: column; gap: 18px; }
.sidebar-right .panel[hidden] { display: none; }
.evaluation-block { display: flex; align-items: center; gap: 14px; padding: 14px; border-radius: 10px; background: var(--paper); border: 1px solid var(--line); }
.eval-score { display: flex; align-items: baseline; gap: 2px; color: var(--rc); background: var(--rb); border-radius: 8px; padding: 8px 10px; }
.eval-score b { font: 800 36px/1 var(--f-display); }
.eval-score span { font: 13px var(--f-mono); opacity: .8; }
.eval-verdict { font: 700 14px var(--f-display); letter-spacing: .08em; text-transform: uppercase; }
.eval-note { font: 12px var(--f-mono); color: var(--muted); }
.info-block p { margin: 0 0 6px; font-size: 16px; line-height: 1.5; }
.info-block ul { margin: 0; padding-left: 18px; font-size: 16px; }
.insight { background: var(--paper); border-radius: 8px; padding: 12px 14px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { font: 12.5px var(--f-display); border: 1px solid var(--line); border-radius: 999px; padding: 3px 10px; }
.cats { display: grid; grid-template-columns: auto 1fr; gap: 6px 12px; margin: 0; font-size: 15px; }
.cats dt { font: 12px var(--f-mono); color: var(--muted); padding-top: 2px; }
.cats dd { margin: 0; }
.mobile-fab { display: none; }

/* footer */
.site-foot { margin-top: 0; background: var(--surface); }
.foot-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 28px; padding-block: 36px 24px; }
.foot-brand p { margin: 10px 0 12px; color: var(--muted); font-size: 16px; max-width: 40ch; }
.foot-stats { display: flex; gap: 20px; font: 13px var(--f-mono); color: var(--muted); }
.foot-stats b { color: var(--ink); font-weight: 500; }
.foot-col { display: flex; flex-direction: column; gap: 8px; font-size: 15.5px; }
.foot-col h3 { margin: 0 0 4px; font: 500 11.5px var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.foot-col a { color: var(--ink); text-decoration: none; }
.foot-col a:hover { color: var(--accent); }
.foot-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 20px; padding-block: 16px 28px; border-top: 1px solid var(--line); font: 12.5px var(--f-mono); color: var(--muted); }
.foot-bottom a { color: var(--muted); }

/* responsive */
@media (max-width: 1500px) { .app { grid-template-columns: 260px minmax(0, 1fr) 320px; } }
@media (max-width: 1200px) {
  .app { grid-template-columns: 260px minmax(0, 1fr); }
  .sidebar-right { position: fixed; top: 0; right: 0; bottom: 0; height: 100%; width: min(380px, 100%); z-index: 60; transform: translateX(100%); transition: transform .2s; padding-top: env(safe-area-inset-top, 0px); }
  .info-open .sidebar-right { transform: none; }
  .sr-close { display: block; }
  .mobile-fab { display: flex; flex-direction: column; align-items: center; position: fixed; right: 16px; bottom: calc(16px + env(safe-area-inset-bottom, 0px)); z-index: 50; border: 0; border-radius: 14px; padding: 8px 14px; background: var(--rb); color: var(--rc); box-shadow: 0 6px 20px rgba(0, 0, 0, .18); cursor: pointer; }
  .mobile-fab b { font: 800 22px/1 var(--f-display); }
  .mobile-fab span { font: 11px var(--f-mono); }
  .info-open .drawer-overlay { display: block; position: fixed; inset: 0; background: var(--overlay); z-index: 55; }
}
@media (max-width: 900px) {
  .app { grid-template-columns: 1fr; }
  .sidebar-left { display: none; }
  .content { padding-inline: 16px; }
  .listing-app { grid-template-columns: 1fr; }
  .filters-drawer { position: fixed; top: 0; left: 0; bottom: 0; height: 100%; width: min(340px, 100%); z-index: 60; transform: translateX(-100%); transition: transform .2s; padding-top: env(safe-area-inset-top, 0px); }
  .drawer-open .filters-drawer { transform: none; }
  .drawer-open .drawer-overlay { display: block; position: fixed; inset: 0; background: var(--overlay); z-index: 55; }
  .fd-close { display: block; }
  .filters-btn { display: inline-block; }
  .listing-main { padding-inline: 16px; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .foot-brand { grid-column: 1 / -1; }
  .logo-count { display: none; }
}
@media (max-width: 520px) {
  .research-grid { grid-template-columns: 1fr; }
  .sub-controls { margin-left: 0; width: 100%; }
  .sort-select { flex: 1; }
  .nav { gap: 12px; font-size: 14px; }
  .nav .nav-cta { display: none; }
  .section-card { padding: 16px; }
}
@media (prefers-reduced-motion: reduce) { .sidebar-right, .filters-drawer { transition: none; } }

/* center the reading column inside the middle area */
.content .article-header, .content .panel, .content .subscribe { margin-inline: auto; }
.content-subheader .tabs { max-width: 820px; margin-inline: auto; }
.listing-main > * { max-width: 1400px; margin-inline: auto; }

/* web push row inside the subscribe block */
.push-row { grid-column: 1 / -1; display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px; padding-top: 14px; border-top: 1px solid rgba(255, 255, 255, .12); font: 14px var(--f-mono); }
.push-row[hidden] { display: none; }
.push-btn { font: 600 14px var(--f-display); padding: 7px 12px; border-radius: 6px; border: 1px solid currentColor; background: transparent; color: inherit; cursor: pointer; }
.push-msg { opacity: .8; }
.hero .push-row { font-size: 13px; }

/* home: why it matters */
.why { padding-top: 8px; }
.why h2 { font-size: 26px; font-weight: 700; margin: 0 0 14px; }
.why-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.why-item { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 18px 20px; }
.why-item h3 { margin: 0 0 6px; font-size: 18px; font-weight: 700; }
.why-item p { margin: 0; color: var(--muted); font-size: 16.5px; line-height: 1.5; }

/* FAQ */
.faq { margin-top: 48px; display: flex; flex-direction: column; gap: 8px; }
.faq-head { display: flex; align-items: flex-end; gap: 16px; margin-bottom: 8px; }
.faq-head h2 { margin: 0 0 10px; }
.faq-mascot { width: 120px; height: auto; flex: none; }
.faq details { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 0 18px; }
.faq summary { cursor: pointer; list-style: none; padding: 14px 0; font: 600 17px var(--f-display); display: flex; gap: 12px; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; margin-left: auto; font: 18px var(--f-mono); color: var(--accent); }
.faq details[open] summary::after { content: "\2013"; }
.faq details p { margin: 0 0 16px; }

/* logo mark */
.logo { align-items: center; }
.logo-mark { flex: none; color: var(--ink); margin-right: -4px; }
.wordmark span, .logo .wordmark span { color: #E5483A; }

/* about: numbered steps (li holds <b> + text, so no grid on the li itself) */
.steps li { display: block; position: relative; padding-left: 44px; min-height: 28px; }
.steps li::before { position: absolute; left: 0; top: 0; }

/* mascot placements: transparent cut-outs straight on the page background */
.mascot { display: block; height: auto; max-width: 100%; }
.h-with-mascot { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; }
.h-with-mascot .mascot { width: 110px; flex: none; }
.notfound { display: flex; flex-direction: column; align-items: center; text-align: center; }
.notfound h1 { max-width: none; }
.foot-mascot { width: 96px; margin-bottom: 8px; }
.about-hero { display: grid; grid-template-columns: 1fr 200px; gap: 24px; align-items: end; }
.about-hero .mascot { width: 200px; }
.empty-state .mascot, .notfound .mascot { width: 180px; margin: 0 auto 16px; }
.sub-intro { display: flex; align-items: flex-start; gap: 16px; }
.sub-mark { flex: none; width: 56px; height: 56px; border-radius: 12px; display: grid; place-items: center; background: var(--paper); color: var(--ink); }
.foot-mascot { width: 64px; }
@media (max-width: 640px) {
  .about-hero { grid-template-columns: 1fr; }
  .about-hero .mascot { width: 140px; order: -1; }
}

/* ---------- Finder, sign-in, account (02.10.2026) ---------- */
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.nav-acct{font-family:var(--f-mono);font-size:14px;border:1px solid var(--line);border-radius:999px;padding:4px 12px}
.cost{font:500 12px var(--f-mono);opacity:.75;margin-left:6px}
.button.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.button[disabled]{opacity:.55;cursor:wait}
.muted{color:var(--muted)}

.finder{padding-block:48px 72px;max-width:920px}
.finder h1{font:700 clamp(28px,4vw,42px)/1.12 var(--f-display);letter-spacing:-.02em;margin:0;text-wrap:balance}
.finder-sub{color:var(--muted);font-size:19px;max-width:62ch;margin:16px 0 26px}
.finder-form textarea,.apply-box textarea{width:100%;box-sizing:border-box;font:17px/1.5 var(--f-body);padding:14px 16px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);resize:vertical}
.finder-form textarea:focus,.apply-box textarea:focus{outline:2px solid var(--accent);outline-offset:1px}
.finder-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;margin-top:12px}
.finder-row .button{margin-top:0}
.finder-examples{display:flex;flex-wrap:wrap;gap:8px}
.chip{font:14px var(--f-display);background:transparent;color:var(--ink);border:1px solid var(--line);border-radius:999px;padding:6px 12px;cursor:pointer}
button.chip:hover{border-color:var(--accent);color:var(--accent)}
.finder-note{color:var(--muted);font-size:15px;margin:12px 0 0}
.finder-status{margin:20px 0;font:15px var(--f-mono);color:var(--muted)}
.finder-status.busy:before{content:"";display:inline-block;width:10px;height:10px;border-radius:50%;background:var(--accent);margin-right:10px;animation:plpulse 1s infinite alternate}
.finder-status.error{color:#c0392b}
@keyframes plpulse{from{opacity:.25}to{opacity:1}}
@media (prefers-reduced-motion:reduce){.finder-status.busy:before{animation:none}}
.finder-results{margin-top:36px}
.res-list{list-style:none;margin:0;padding:0}
.res-item{display:grid;grid-template-columns:32px 1fr;gap:12px;padding:18px 0;border-bottom:1px solid var(--line)}
.res-pick input{width:20px;height:20px;accent-color:var(--accent);margin-top:4px}
.res-title{font:600 19px/1.3 var(--f-display);color:var(--ink);text-decoration:none}
.res-title:hover{color:var(--accent)}
.res-why{margin:6px 0;font-size:16.5px}
.res-meta{display:flex;flex-wrap:wrap;gap:6px 14px;margin:0;font:12.5px var(--f-mono);color:var(--muted)}
.score-pill{color:var(--ink)}
.solve-bar{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;margin-top:18px;padding:18px 20px;border:1px solid var(--line);border-radius:12px;background:var(--surface)}
.solve-bar p{margin:0;color:var(--muted);font-size:16px;max-width:52ch}
.solve-bar .button{margin-top:0}
.finder-answer{margin-top:32px;padding:28px 30px;border:1px solid var(--line);border-radius:14px;background:var(--surface)}
.finder-answer h2{font:700 22px/1.25 var(--f-display);margin:26px 0 10px}
.finder-answer h2:first-child{margin-top:0}
.finder-answer pre{position:relative;background:#0e1a2b;color:#e8eef8;border-radius:10px;padding:16px 16px 16px;overflow-x:auto;font:14px/1.55 var(--f-mono);white-space:pre-wrap}
.copy-code{position:absolute;top:8px;right:8px;font:12px var(--f-mono);background:rgba(255,255,255,.12);color:#fff;border:0;border-radius:6px;padding:4px 10px;cursor:pointer}
.copy-code:hover{background:rgba(255,255,255,.22)}

.apply-box{max-width:820px;box-sizing:border-box;margin:28px auto;padding:24px 26px;border:1px solid var(--line);border-radius:14px;background:var(--surface)}
.apply-box h2{font:700 24px/1.2 var(--f-display);margin:0 0 6px}
.apply-sub{color:var(--muted);margin:0 0 14px;font-size:16.5px}
.apply-actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:12px}
.apply-actions .button{margin-top:0}
.apply-note{color:var(--muted);font-size:15px}
.apply-box .finder-answer{background:var(--paper)}

.auth{padding-block:56px 80px;display:flex;justify-content:center}
.auth-card{width:100%;max-width:480px;padding:32px;border:1px solid var(--line);border-radius:16px;background:var(--surface)}
.auth-card h1{font:700 28px/1.2 var(--f-display);margin:0 0 10px;text-wrap:balance}
.auth-sub{color:var(--muted);font-size:16.5px;margin:0 0 20px}
.auth-error{color:#c0392b;font-size:15px}
.auth-google{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;box-sizing:border-box;background:#fff;color:#1f1f1f;border:1px solid #dadce0;margin-top:4px}
.auth-or{display:flex;align-items:center;gap:12px;color:var(--muted);font:13px var(--f-mono);margin:18px 0}
.auth-or:before,.auth-or:after{content:"";flex:1;height:1px;background:var(--line)}
.auth-form label{display:block;font:500 14px var(--f-display);margin-bottom:6px}
.auth-form input[type=email]{width:100%;box-sizing:border-box;font:16px var(--f-display);padding:11px 14px;border:1px solid var(--line);border-radius:8px;background:var(--paper);color:var(--ink)}
.auth-form .button{width:100%}
.auth-fine{color:var(--muted);font-size:13.5px;margin:14px 0 0}

.account{padding-block:48px 72px;max-width:920px}
.account h1{font:700 30px var(--f-display);margin:0 0 20px;word-break:break-all}
.acct-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
.acct-box{padding:22px;border:1px solid var(--line);border-radius:14px;background:var(--surface)}
.acct-num{font:700 54px/1 var(--f-display);color:var(--accent)}
.acct-cap{font:13px var(--f-mono);text-transform:uppercase;letter-spacing:.1em;color:var(--muted);margin-top:6px}
.acct-note{font-size:15px;color:var(--muted)}
.acct-email{font-size:17px;word-break:break-all}
.acct-h2{font:700 22px var(--f-display);margin:36px 0 12px}
.table-wrap{overflow-x:auto}
.acct-table{width:100%;border-collapse:collapse;font-size:15px}
.acct-table th,.acct-table td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--line);vertical-align:top}
.acct-table th{font:500 12px var(--f-mono);text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
.acct-q{max-width:420px}
@media (max-width:640px){.finder-answer,.apply-box,.auth-card{padding:20px}.res-item{grid-template-columns:28px 1fr}}
/* account v2 */
.acct-welcome{padding:14px 18px;border-radius:12px;background:rgba(43,179,168,.12);border:1px solid rgba(43,179,168,.4);margin-bottom:24px;font-size:16.5px}
.acct-top{display:flex;flex-wrap:wrap;gap:20px;align-items:flex-end;justify-content:space-between}
.acct-top h1{margin:0}
.acct-balance{text-align:right}
.acct-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
.acct-card{display:flex;flex-direction:column;gap:8px;padding:20px 22px;border:1px solid var(--line);border-radius:14px;background:var(--surface);color:var(--ink);text-decoration:none;transition:border-color .15s}
.acct-card:hover{border-color:var(--accent)}
.acct-card.primary{border-color:var(--accent)}
.acct-card h3{margin:0;font:700 20px/1.25 var(--f-display)}
.acct-card p{margin:0;color:var(--muted);font-size:16px;line-height:1.5}
.acct-cost{font:500 12px var(--f-mono);text-transform:uppercase;letter-spacing:.08em;color:var(--accent)}
.acct-card.free .acct-cost{color:var(--muted)}
.acct-go{margin-top:auto;padding-top:6px;font:600 15px var(--f-display);color:var(--accent)}
.acct-signout{margin-top:36px}
#apply{scroll-margin-top:90px}
@media (max-width:640px){.acct-balance{text-align:left}}
/* paper: apply entry points */
.subhead-row{display:flex;align-items:center;gap:12px;max-width:820px;margin-inline:auto}
.subhead-row .tabs{flex:1;max-width:none;margin:0}
.tab-apply{flex:none;font:600 14px var(--f-display);color:var(--accent-ink,#fff);background:var(--accent);padding:7px 14px;border-radius:999px;text-decoration:none;white-space:nowrap;margin-right:12px}
.tab-apply:hover{filter:brightness(1.08)}
.apply-hint{max-width:none;display:flex;gap:10px;align-items:flex-start;margin:6px 0 22px;padding:10px 14px;border-left:3px solid var(--accent);background:var(--surface);border-radius:0 8px 8px 0;font-size:16px;color:var(--muted)}
.apply-hint a{color:var(--accent);font-weight:600}
@media (max-width:640px){.tab-apply{padding:6px 10px;font-size:13px}}

.ai-spark{width:1em;height:1em;flex:none;fill:currentColor;vertical-align:-.12em;margin-right:.4em}
.apply-hint .ai-spark{color:var(--accent);margin:.2em 0 0;width:18px;height:18px}
.apply-box h2 .ai-spark{color:var(--accent);width:.9em;height:.9em}
.apply-source{display:flex;flex-wrap:wrap;gap:4px 8px;align-items:baseline;margin:0 0 14px;padding:8px 12px;border-radius:8px;background:var(--paper);font-size:15px;line-height:1.4;color:var(--ink)}
.apply-source>span:first-child{font:500 11px var(--f-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
.apply-src-id{font:12.5px var(--f-mono);color:var(--muted)}

.clarify-box{margin:18px 0;padding:18px 20px;border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:0 12px 12px 0;background:var(--surface);display:grid;gap:14px}
.clarify-head{margin:0;font-size:16px;color:var(--muted)}
.clarify-head b{color:var(--ink)}
.clarify-q{border:0;margin:0;padding:0;display:grid;gap:8px}
.clarify-q legend{font:600 16px/1.35 var(--f-display);padding:0;margin-bottom:8px}
.clarify-opts{display:flex;flex-wrap:wrap;gap:6px}
.clarify-opts .chip[aria-pressed="true"]{background:var(--accent);border-color:var(--accent);color:var(--accent-ink,#fff)}
.clarify-other{font:15px var(--f-body);padding:8px 12px;border:1px solid var(--line);border-radius:8px;background:var(--paper);color:var(--ink);max-width:460px;box-sizing:border-box;width:100%}
.clarify-actions{display:flex;flex-wrap:wrap;gap:10px}
.clarify-actions .button{margin-top:0}
.refine-box{margin:16px 0 0;display:grid;gap:8px}
.refine-label{font:600 15px var(--f-display)}
.refine-box textarea{width:100%;box-sizing:border-box;font:16px/1.5 var(--f-body);padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);resize:vertical}
.refine-box .button{justify-self:start;margin-top:0}

.lab-closed{margin:0 0 14px;padding:10px 14px;border-radius:8px;background:var(--accent-soft);color:var(--ink);font-size:15.5px;line-height:1.45}

.acct-menu{position:relative}
.acct-menu summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:6px;font:14px var(--f-mono);border:1px solid var(--line);border-radius:999px;padding:3px 10px 3px 4px;white-space:nowrap}
.acct-menu summary::-webkit-details-marker{display:none}
.acct-menu summary::after{content:"";width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px);margin-left:2px}
.acct-menu[open] summary{border-color:var(--accent)}
.acct-drop{position:absolute;right:0;top:calc(100% + 6px);z-index:20;min-width:230px;max-width:calc(100vw - 32px);background:var(--surface);border:1px solid var(--line);border-radius:10px;box-shadow:0 8px 24px rgba(0,0,0,.12);padding:6px;display:grid}
.acct-drop a,.acct-drop button{display:block;text-align:left;padding:8px 10px;border-radius:6px;color:var(--ink);text-decoration:none;font:15px var(--f-body);background:none;border:0;cursor:pointer;width:100%}
.acct-drop a:hover,.acct-drop button:hover{background:var(--paper)}
.acct-drop form{margin:4px 0 0;border-top:1px solid var(--line);padding-top:4px}
.acct-drop-who{margin:4px 10px 6px;font:12.5px var(--f-mono);color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.plan-pill{font:600 11px/1 var(--f-mono);letter-spacing:.06em;text-transform:uppercase;padding:4px 7px;border-radius:999px;background:var(--paper);color:var(--muted);border:1px solid var(--line)}
.plan-pill.plan-pro{background:var(--accent);color:var(--accent-ink,#fff);border-color:var(--accent)}
.plan-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px;margin-bottom:8px}
.plan-card{border:1px solid var(--line);border-radius:12px;padding:16px 18px;background:var(--surface)}
.plan-card.current{border-color:var(--accent)}
.plan-name{margin:0 0 8px;font:600 15px var(--f-display);display:flex;align-items:center;gap:8px}
.plan-card ul{margin:0 0 12px;padding-left:18px;color:var(--muted);font-size:15.5px;line-height:1.5}
.plan-note{margin:8px 0 0;font-size:14.5px;color:var(--muted)}
.news-card p{margin:0 0 10px;line-height:1.5}
.news-form{display:grid;gap:6px;justify-items:start}
.sub-state{margin:0;font-size:16px;line-height:1.5}
.nav a{white-space:nowrap}
@media (max-width:520px){
  :root{--head-h:92px}
  .head-row{flex-wrap:wrap;row-gap:6px;padding-block:8px}
  .head-row .nav{width:100%;justify-content:space-between;gap:10px}
  .nav .nav-about{display:none}
  .acct-cr-word{display:none}
  .acct-menu summary{padding:3px 8px 3px 3px}
}

/* SEO hubs: /techniques, /problems, breadcrumbs, related block, featured strip */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:4px 8px;font:12.5px var(--f-mono);color:var(--muted);margin:0 0 14px}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--accent)}
.crumbs [aria-current]{color:var(--ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%}
.article-header .crumbs{margin:0 0 12px}
.hub{max-width:900px}
.hub .doc-lede{font-size:20px}
.hub-aka{font:13px var(--f-mono);color:var(--muted);margin:10px 0 0}
.hub-body{margin-top:8px}
.hub-body h2{margin-top:44px}
.evidence{font-size:16px}
.evidence td{padding-right:14px}
.ev-study a{font:600 16px/1.3 var(--f-display);color:var(--ink);text-decoration:none}
.ev-study a:hover{color:var(--accent)}
.ev-date{display:block;font:12px var(--f-mono);color:var(--muted);margin-top:3px}
.ev-score .score{font:500 13px var(--f-mono);padding:3px 7px;border-radius:4px;display:inline-block}
.dir{font:500 12px var(--f-mono);padding:3px 8px;border-radius:999px;white-space:nowrap;border:1px solid currentColor}
.dir-helps{color:var(--r-great)}
.dir-hurts{color:#C0392B}
.dir-mixed{color:var(--signal)}
@media (prefers-color-scheme:dark){.dir-hurts{color:#F08A7E}}
.hub-more-label{font:600 15px var(--f-display);margin:20px 0 8px}
.hub-more{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.hub-more li{display:flex;gap:10px;align-items:baseline;font-size:16.5px}
.hub-more .score{font:500 12px var(--f-mono);padding:2px 6px;border-radius:4px;flex:none}
.hub-prompts h3{font-size:18px;margin:24px 0 8px}
.hub-prompt pre{margin:0}
.hub-src{font:13px var(--f-mono);color:var(--muted);margin:8px 0 0}
.hub .faq{margin-top:40px}
.hub-cta{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px 24px;margin-top:40px;padding:20px 24px;border-radius:12px;background:var(--accent-soft)}
.hub-cta h2{margin:0 0 4px!important;font-size:20px}
.hub-cta p{margin:0;font-size:16.5px}
.hub-cta .button{margin-top:0}
.hub-sub{padding-block:32px 48px}
.hub-index{padding-top:40px;padding-bottom:56px}
.hub-index h1{font-weight:800;font-size:clamp(30px,4.5vw,46px);line-height:1.08;margin:0 0 14px;max-width:24ch}
.hub-index .doc-lede{max-width:62ch}
.hub-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px;padding-top:20px}
.hub-card{display:flex;flex-direction:column;gap:8px;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:16px 18px;cursor:pointer;transition:border-color .15s}
.hub-card:hover{border-color:var(--accent)}
.hub-card h2,.hub-card h3{margin:0;font:600 18px/1.3 var(--f-display)}
.hub-card h2 a,.hub-card h3 a{color:var(--ink);text-decoration:none}
.hub-card p{margin:0;color:var(--muted);font-size:16px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.hub-n{margin-top:auto;font:12.5px var(--f-mono);color:var(--accent)}
.hub-switch{margin:22px 0 0;font-size:16.5px}
.related-block{max-width:820px;margin:28px auto 8px}
.related-block h2{font-size:22px;margin:0 0 4px}
.related-block .topics{padding-top:10px}
.rel-list{list-style:none;margin:12px 0 0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:4px 12px}
.rel-list .article-item{border:1px solid var(--line);background:var(--surface)}
.rel-list .article-item:hover{border-color:var(--accent);background:var(--surface)}
.rel-title{font:500 14.5px/1.35 var(--f-display)}
.featured{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;padding-block:14px;border-top:1px solid var(--line)}
.featured-label{font:500 11.5px var(--f-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.featured-list{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px}
.featured-list a{font:14px var(--f-mono);color:var(--muted)}
.featured-list img{display:block;height:40px;width:auto}
@media (max-width:640px){
  .evidence thead{display:none}
  .evidence,.evidence tbody{display:block;width:100%}
  .evidence tr{display:flex;flex-wrap:wrap;align-items:center;gap:6px 8px;padding:12px 0;border-bottom:1px solid var(--line)}
  .evidence td{border:0;padding:0}
  .evidence .ev-study{width:100%}
  .evidence .ev-score{order:1}.evidence .ev-dir{order:2}
  .evidence .ev-finding{order:3;width:100%}
  .hub-cta{padding:16px}
}
@media (max-width:520px){
  .nav .nav-problems{display:none}
}
/* header: the nav no longer fits one row below 900px once Techniques/Problems are in -> 2 rows (like <=520) */
@media (min-width:521px) and (max-width:900px){
  :root{--head-h:92px}
  .head-row{flex-wrap:wrap;row-gap:6px;padding-block:8px}
  .head-row .nav{width:100%;justify-content:space-between;gap:12px}
}
@media (min-width:521px) and (max-width:700px){
  .nav .nav-cta{display:none}
}