/* CitedGEO shared styles. Direction A (dark, default) = html.theme-a; direction B (light) = html.theme-b */
:root,
.theme-a {
  --bg: #0b0d10;
  --bg-2: #12151a;
  --line: #262b33;
  --text: #eceef1;
  --muted: #a1a7b0;
  --accent: #c8f55a;
  --on-accent: #0b0d10;
  color-scheme: dark;
}
.theme-b {
  --bg: #fafaf7;
  --bg-2: #f0f0eb;
  --line: #d6d6ce;
  --text: #111316;
  --muted: #50565e;
  --accent: #2446f5;
  --on-accent: #ffffff;
  color-scheme: light;
}
:root {
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --serif: ui-serif, "New York", "Iowan Old Style", Charter, "Bitstream Charter", Cambria, Georgia, serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 400 1.0625rem/1.65 var(--sans); }
img, svg { max-width: 100%; height: auto; }
a { color: var(--text); text-decoration-color: var(--accent); text-decoration-thickness: 2px; text-underline-offset: 3px; }
a:hover { color: var(--accent); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }

.skip { position: absolute; left: 1rem; top: -100px; z-index: 30; background: var(--accent); color: var(--on-accent); padding: .75rem 1rem; font-weight: 600; }
.skip:focus { top: 1rem; }

.wrap { width: 100%; max-width: 74rem; margin: 0 auto; padding: 0 1.25rem; }
.narrow { max-width: 44rem; }
.pad { padding-block: 3.5rem; }
.pad-top { margin-top: 2rem; }

/* editorial type: serif display, sans text, mono labels */
h1, h2 { font-family: var(--serif); font-weight: 500; letter-spacing: -0.02em; margin: 0 0 1.25rem; }
h1 { font-size: clamp(2.5rem, 7vw, 5.25rem); line-height: 1.02; letter-spacing: -0.03em; }
h2 { font-size: clamp(1.75rem, 3.8vw, 2.75rem); line-height: 1.08; }
h1 em, h2 em { font-style: italic; color: var(--muted); }
h3 { font-family: var(--sans); font-size: 1.1875rem; line-height: 1.3; font-weight: 650; letter-spacing: -0.01em; margin: 0 0 .5rem; }
p, ul, ol, table, dl { margin: 0 0 1.25rem; }
.lead { font-size: clamp(1.125rem, 2vw, 1.3125rem); line-height: 1.55; color: var(--muted); max-width: 38rem; }
.eyebrow { display: block; font-family: var(--mono); font-size: .8125rem; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); margin-bottom: 1.25rem; }
.muted { color: var(--muted); }

/* header */
.site-header { border-bottom: 1px solid var(--line); position: relative; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 4.5rem; }
.logo { display: inline-flex; align-items: center; gap: .55rem; font-weight: 700; font-size: 1.125rem; letter-spacing: -0.02em; text-decoration: none; min-height: 44px; }
.logo-mark { width: 1.5rem; height: 1.5rem; flex: none; }
.logo-mark .dot { fill: var(--accent); }
.nav-desktop { display: none; }
.nav-desktop ul, .menu ul { list-style: none; margin: 0; padding: 0; }
.nav-desktop ul { display: flex; align-items: center; }
.nav-desktop a, .menu a { display: flex; align-items: center; min-height: 44px; padding: 0 .65rem; text-decoration: none; color: var(--muted); font-size: .9375rem; }
.nav-desktop a:hover, .menu a:hover, .nav-desktop a[aria-current="page"], .menu a[aria-current="page"] { color: var(--text); }
.nav-desktop a[aria-current="page"] { text-decoration: underline; text-decoration-color: var(--accent); }
.menu summary { list-style: none; cursor: pointer; min-height: 44px; min-width: 44px; display: flex; align-items: center; padding: 0 1rem; border: 1px solid var(--line); font-family: var(--mono); font-size: .8125rem; text-transform: uppercase; letter-spacing: .08em; }
.menu summary::-webkit-details-marker { display: none; }
.menu[open] ul { position: absolute; left: 0; right: 0; top: 4.5rem; background: var(--bg); border-bottom: 1px solid var(--line); padding: .5rem 1.25rem 1rem; z-index: 5; }
@media (min-width: 70rem) { .nav-desktop { display: block; } .menu { display: none; } }

/* buttons and links */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: .75rem 1.5rem; background: var(--accent); color: var(--on-accent); font-weight: 650; text-decoration: none; border: 2px solid var(--accent); font-size: 1rem; cursor: pointer; font-family: inherit; }
.btn:hover { color: var(--on-accent); filter: brightness(1.08); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--line); }
.btn-ghost:hover { color: var(--text); border-color: var(--text); filter: none; }
.nav-desktop .btn { color: var(--on-accent); min-height: 44px; padding: 0 1.1rem; margin-left: .5rem; }
.link-arrow { display: inline-flex; align-items: center; gap: .4rem; min-height: 48px; font-weight: 600; }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: .75rem 1.5rem; margin-top: 2rem; }

/* sections */
section { padding: clamp(3.5rem, 9vw, 7rem) 0; border-bottom: 1px solid var(--line); }
.hero { padding-top: clamp(3rem, 10vw, 7rem); }
.page-head { padding: clamp(2.5rem, 7vw, 5rem) 0 clamp(2rem, 5vw, 3.5rem); border-bottom: 1px solid var(--line); }
.hero-grid, .split, .loop-layout { display: grid; gap: 2.5rem; }
.hero-grid > *, .split > *, .loop-layout > * { min-width: 0; }
@media (min-width: 62rem) {
  .hero-grid { grid-template-columns: 1.35fr 1fr; gap: 4rem; align-items: end; }
  .split { grid-template-columns: 1fr 1.75fr; gap: 5rem; }
  /* короткий заголовок слева едет за длинным списком справа, иначе под ним пустое поле */
  .split > :first-child { position: sticky; top: 2.5rem; align-self: start; }
  .loop-layout { grid-template-columns: 1fr 1fr; gap: 5rem; align-items: center; }
}

.answer-card { margin: 0; background: var(--bg-2); border: 1px solid var(--line); padding: 1.5rem; font-size: .9375rem; }
.answer-card .label { font-family: var(--mono); font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin-bottom: .5rem; }
.answer-card .q { border-bottom: 1px solid var(--line); padding-bottom: .9rem; margin-bottom: .9rem; }
.answer-card .hl { background: var(--accent); color: var(--on-accent); padding: 0 .3rem; font-weight: 650; }
.answer-card .src { display: flex; gap: .5rem; flex-wrap: wrap; margin: 1rem 0 0; font-family: var(--mono); font-size: .75rem; color: var(--muted); list-style: none; padding: 0; }
.answer-card .src li { border: 1px solid var(--line); padding: .2rem .55rem; }
.answer-card .src .you { border-color: var(--accent); color: var(--text); }
.caption { font-size: .8125rem; color: var(--muted); margin: .75rem 0 0; }

/* numbered index rows: the main visual language */
.index { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line); }
.index li { display: grid; grid-template-columns: 3rem 1fr; column-gap: 1rem; padding: 1.25rem 0; border-bottom: 1px solid var(--line); }
.index .n { grid-row: span 2; font-family: var(--mono); font-size: .8125rem; color: var(--accent); padding-top: .2rem; }
.index h3, .index p { grid-column: 2; }
.index p { color: var(--muted); margin: 0; }
@media (min-width: 48rem) {
  .index li { grid-template-columns: 3.5rem minmax(10rem, 16rem) 1fr; column-gap: 1.5rem; }
  .index .n { grid-row: auto; }
  .index h3 { grid-column: 2; margin: 0; }
  .index p { grid-column: 3; }
}

/* methodology diagram (hand-built SVG) */
.loop-figure { margin: 0; }
.loop-figure svg { display: block; width: 100%; max-width: 34rem; margin: 0 auto; }
.d-line { stroke: var(--line); stroke-width: 1; }
.d-arc { stroke: var(--muted); stroke-width: 1.5; }
.d-arc-back { stroke: var(--accent); stroke-width: 2; }
.d-arrow { fill: var(--muted); }
.d-node { fill: var(--accent); }
.d-num { font-family: var(--mono); font-size: 13px; fill: var(--accent); }
.d-label { font-family: var(--sans); font-size: 19px; font-weight: 650; fill: var(--text); }
.d-center { font-family: var(--serif); font-size: 26px; fill: var(--text); }
.d-sub { font-family: var(--mono); font-size: 12px; fill: var(--muted); letter-spacing: .04em; }

.definition { border-left: 3px solid var(--accent); padding: .25rem 0 .25rem 1.25rem; font-size: 1.1875rem; }

.table-wrap { overflow-x: auto; margin: 0 0 1.5rem; border: 1px solid var(--line); }
table { width: 100%; border-collapse: collapse; font-size: .9375rem; margin: 0; }
.table-wrap table { min-width: 34rem; }
th, td { text-align: left; vertical-align: top; padding: .9rem 1rem; border-bottom: 1px solid var(--line); }
th { font-weight: 650; background: var(--bg-2); }
tr:last-child td { border-bottom: 0; }
code { font-family: var(--mono); font-size: .875em; }
pre { font-family: var(--mono); font-size: .875rem; background: var(--bg-2); border: 1px solid var(--line); padding: 1rem; overflow-x: auto; margin: 0 0 1.5rem; }

.steps { padding-left: 1.5rem; }
.steps > li { margin-bottom: 1rem; padding-left: .25rem; }
.steps > li::marker { color: var(--accent); font-family: var(--mono); }
.checks { list-style: none; padding: 0; }
.checks li { position: relative; padding-left: 1.5rem; margin-bottom: .6rem; }
.checks li::before { content: ""; position: absolute; left: 0; top: .65em; width: .5rem; height: .5rem; background: var(--accent); }

.prose h2 { margin-top: 3.5rem; }
.prose h3 { margin-top: 2rem; }
.prose > :first-child { margin-top: 0; }
.prose li { margin-bottom: .4rem; }
.byline { font-family: var(--mono); font-size: .8125rem; color: var(--muted); }

/* Q&A blocks: question heading, direct answer */
.qa { border-top: 1px solid var(--line); }
.qa > div { padding: 1.5rem 0; border-bottom: 1px solid var(--line); }
.qa h3 { font-family: var(--serif); font-weight: 500; font-size: 1.5rem; margin-bottom: .75rem; }
.qa p { margin: 0; }

.faq details { border-bottom: 1px solid var(--line); }
.faq details:first-of-type { border-top: 1px solid var(--line); }
.faq summary { cursor: pointer; list-style: none; padding: 1.25rem 2.5rem 1.25rem 0; position: relative; min-height: 44px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: .25rem; top: 1.05rem; font-size: 1.5rem; line-height: 1; color: var(--accent); }
.faq details[open] summary::after { content: "\2212"; }
.faq summary h3 { display: inline; font-size: 1.125rem; margin: 0; }
.faq details > div { padding: 0 0 1.25rem; color: var(--muted); max-width: 44rem; }

.cta-band h2 { max-width: 44rem; }
.todo { background: #ffd84d; color: #1a1400; font-weight: 700; padding: .1rem .4rem; font-size: .9em; }

.crumbs { font-family: var(--mono); font-size: .8125rem; color: var(--muted); margin-bottom: 1rem; }
.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: .5rem; padding: 0; margin: 0; }
.crumbs li { display: flex; align-items: center; }
.crumbs li + li::before { content: "/"; margin-right: .5rem; }
.crumbs a { color: var(--muted); display: inline-flex; min-height: 44px; align-items: center; }

/* forms */
.form { display: grid; gap: 1.25rem; max-width: 36rem; }
.form label { display: block; font-weight: 600; margin-bottom: .4rem; }
.form .hint { font-weight: 400; color: var(--muted); font-size: .875rem; }
.form input, .form textarea { width: 100%; min-height: 48px; padding: .75rem .9rem; font: inherit; color: var(--text); background: var(--bg-2); border: 1px solid var(--line); }
.form textarea { min-height: 7rem; resize: vertical; }
.form-status { font-weight: 600; }

/* footer */
.site-footer { padding: 3.5rem 0 2.5rem; font-size: .9375rem; color: var(--muted); }
.footer-grid { display: grid; gap: 2rem; }
@media (min-width: 48rem) { .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; } }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer a { color: var(--muted); display: inline-flex; min-height: 44px; align-items: center; }
.site-footer a:hover { color: var(--text); }
.site-footer h2 { font-family: var(--mono); font-weight: 400; font-size: .8125rem; letter-spacing: .08em; text-transform: uppercase; color: var(--text); margin-bottom: .5rem; }
.plain-btn { background: transparent; color: var(--text); border: 1px solid var(--line); min-height: 44px; padding: 0 1rem; font: inherit; cursor: pointer; margin: 1rem .5rem 0 0; }
.plain-btn:hover { border-color: var(--text); }
.legal { border-top: 1px solid var(--line); margin-top: 2.5rem; padding-top: 1.5rem; font-size: .875rem; }

/* consent banner */
.consent { position: fixed; left: 0; right: 0; bottom: 0; z-index: 20; background: var(--bg-2); border-top: 1px solid var(--line); padding: 1.25rem 0 calc(1.25rem + env(safe-area-inset-bottom, 0px)); }
.consent .wrap { display: grid; gap: 1rem; }
@media (min-width: 48rem) { .consent .wrap { grid-template-columns: 1fr auto; align-items: center; } }
.consent p { margin: 0; font-size: .9375rem; }
.consent .row { display: flex; flex-wrap: wrap; gap: .75rem; }

/* ad landing page */
.lp-head .wrap { justify-content: flex-start; }
.lp-grid { display: grid; gap: 3rem; }
.lp-grid > * { min-width: 0; }
@media (min-width: 62rem) { .lp-grid { grid-template-columns: 1.1fr 1fr; gap: 5rem; } }
/* in the half-width loop column, keep the stacked two-column row layout */
@media (min-width: 48rem) {
  .loop-layout .index li, .lp-grid .index li { grid-template-columns: 3.5rem 1fr; }
  .loop-layout .index .n, .lp-grid .index .n { grid-row: span 2; }
  .loop-layout .index h3, .lp-grid .index h3 { margin-bottom: .35rem; }
  .loop-layout .index p, .lp-grid .index p { grid-column: 2; }
}
.lp-grid h1 { font-size: clamp(2.25rem, 5vw, 3.75rem); }
input[name="hp_field"] { position: absolute; left: -9999px; }