/*
 * Тема сайта «Тёплый аналоговый премиум». Подключается после ui.css на всех страницах, кроме игры.
 * Графит — по умолчанию, светлая — по выбору (localStorage: site-theme). Атрибут data-theme ставится в <head> до отрисовки.
 * Старые токены ui.css (--paper, --ink, --blue …) переназначены на новые: страницы без своей разметки меняют вид без правок.
 */
@font-face { font-family: 'EB Garamond'; font-style: normal; font-weight: 400 600; font-display: swap;
  src: url(fonts/eb-garamond-cyrillic.woff2) format('woff2'); unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116; }
@font-face { font-family: 'EB Garamond'; font-style: normal; font-weight: 400 600; font-display: swap;
  src: url(fonts/eb-garamond-latin.woff2) format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }

:root {
  --font-display: 'EB Garamond', 'Iowan Old Style', Georgia, serif;
  --font-body: 'Golos Text', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --ease: cubic-bezier(.2, .7, .2, 1);
  --radius: 18px;
  --max: 80rem;
}

/* Графит */
:root, [data-theme='graphite'] {
  color-scheme: dark;
  --bg: #1c1f22; --bg-2: #212428; --surface: #262a2e; --body-1: #34383d; --body-2: #2a2e32; --inset: #17191c;
  --text: #ece5d8; --muted: #b3a998; --faint: #8a8278;
  --copper: #d0915f; --copper-line: #b07446; --copper-hi: #e7b38a; --copper-lo: #6e4527;
  --copper-soft: rgba(208, 145, 95, .16); --on-copper: #1c1f22;
  --hairline: rgba(236, 229, 216, .12); --line-strong: rgba(236, 229, 216, .24);
  --shadow: 0 30px 60px -30px rgba(0, 0, 0, .7), 0 2px 0 rgba(255, 255, 255, .04) inset;
  --card-shadow: 0 12px 30px -18px rgba(0, 0, 0, .6);
  --paper-filter: sepia(.18) saturate(.9) brightness(.94) contrast(1.02);
  --glow: rgba(255, 186, 120, .30); --grain-op: .09;
  --kf0: #4a4f55; --kf1: #2e3236; --kf2: #23262a; --knurl: #15171a; --knurl-op: .7;
  --egg: #e09a55; --egg-soft: rgba(224, 154, 85, .08);
}
/* Светлая — слоновая кость */
[data-theme='light'] {
  color-scheme: light;
  --bg: #f1ebe0; --bg-2: #ebe3d5; --surface: #f8f4ec; --body-1: #e7dfd1; --body-2: #ddd3c2; --inset: #f6f1e8;
  --text: #25282b; --muted: #57524b; --faint: #6f685e;
  --copper: #8a4f22; --copper-line: #a3693c; --copper-hi: #d39a6c; --copper-lo: #6f3f1c;
  --copper-soft: rgba(138, 79, 34, .10); --on-copper: #fbf7f0;
  --hairline: rgba(37, 40, 43, .13); --line-strong: rgba(37, 40, 43, .26);
  --shadow: 0 30px 60px -34px rgba(70, 50, 30, .45), 0 1px 0 rgba(255, 255, 255, .7) inset;
  --card-shadow: 0 12px 30px -20px rgba(70, 50, 30, .35);
  --paper-filter: none;
  --glow: rgba(255, 196, 140, .22); --grain-op: .07;
  --kf0: #fbf8f2; --kf1: #e6ddcd; --kf2: #d5c9b6; --knurl: #6f3f1c; --knurl-op: .5;
  --egg: #9a4f12; --egg-soft: rgba(154, 79, 18, .07);
}
/* Старые токены ui.css и Bootstrap → новые */
:root, [data-theme] {
  --paper: var(--bg); --ink: var(--text); --blue: var(--copper); --blue-dark: var(--copper); --line: var(--hairline);
  --ochre: var(--copper); --silver: var(--bg-2);
  --bs-body-font-family: var(--font-body); --bs-body-color: var(--text); --bs-body-bg: var(--bg);
  --bs-emphasis-color: var(--text); --bs-secondary-color: var(--muted); --bs-tertiary-bg: var(--bg-2); --bs-secondary-bg: var(--bg-2);
  --bs-link-color: var(--copper); --bs-link-hover-color: var(--copper-hi); --bs-link-color-rgb: 208, 145, 95; --bs-link-hover-color-rgb: 231, 179, 138;
  --bs-border-color: var(--hairline); --bs-card-bg: var(--surface); --bs-card-color: var(--text); --bs-heading-color: var(--text);
}
[data-theme='light'] { --bs-link-color-rgb: 138, 79, 34; --bs-link-hover-color-rgb: 111, 63, 28; }

/* База */
body { background: var(--bg); color: var(--text); font-family: var(--font-body); -webkit-font-smoothing: antialiased; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 500; letter-spacing: -.005em; color: var(--text); }
h1 { font-size: clamp(2.25rem, 3.7vw, 3.4rem); line-height: 1.08; }
h2 { font-size: clamp(1.9rem, 3.2vw, 2.6rem); line-height: 1.12; }
h3 { font-size: 1.5rem; line-height: 1.2; }
h1 em, h2 em, h3 em { color: var(--copper); }
a { color: var(--copper); }
a:hover { color: var(--copper-hi); }
[data-theme='light'] a:hover { color: var(--copper-lo); }
a:focus-visible, button:focus-visible, summary:focus-visible, [tabindex]:focus-visible, :focus-visible { outline: 2px solid var(--copper); outline-offset: 3px; }
.eyebrow, .section-label, .case-tag, .case-number, .study-number, .capability-index, .kicker {
  color: var(--copper); font-size: .8125rem; letter-spacing: .14em; text-transform: uppercase; font-weight: 500; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Поверхности, у которых в ui.css цвет задан напрямую */
.skip-link { background: var(--copper); color: var(--on-copper); border-color: var(--copper); }
.card, .hero-facts > div, .contact-links a, .detail-aside nav, .materials-menu, .article-toc, .materials-empty, .mobile-menu nav {
  background: var(--surface); border-color: var(--hairline); color: var(--text); box-shadow: none; }
.card:hover { border-color: var(--copper-line); box-shadow: var(--card-shadow); }
.contact-section { background: var(--bg-2); }
.about-section { background: var(--surface); color: var(--text); }
.about-section h2, .about-section h2 em { color: var(--text); }
.about-section .section-label { color: var(--copper); }
.article-art { background: var(--bg-2); }
.article-art img { filter: var(--paper-filter); }
.tech-list span, .stack span { border-color: var(--line-strong); }
.prose h2, .prose h3 { font-family: var(--font-display); font-weight: 500; letter-spacing: -.005em; }
.prose h2 { font-size: 1.85em; } .prose h3 { font-size: 1.4em; }
.prose pre { background: var(--inset); border: 1px solid var(--hairline); }
.prose code { color: var(--copper-hi); }
[data-theme='light'] .prose code { color: var(--copper-lo); }
.prose blockquote { border-color: var(--copper-line); }
.prose table { --bs-table-bg: transparent; --bs-table-color: var(--text); border-color: var(--hairline); }
.breadcrumbs li:not(:first-child)::before { color: var(--faint); }
.text-muted, .materials-deck, .detail-lead, .experience-deck { color: var(--muted) !important; }
hr { border-color: var(--hairline); opacity: 1; }

/* Кнопки: и Bootstrap (.btn-primary), и свои (.button-primary) */
.btn, .button { border-radius: 999px; }
.btn-primary, .button-primary {
  --bs-btn-bg: var(--copper); --bs-btn-border-color: var(--copper); --bs-btn-color: var(--on-copper);
  --bs-btn-hover-bg: var(--copper-hi); --bs-btn-hover-border-color: var(--copper-hi); --bs-btn-hover-color: var(--on-copper);
  --bs-btn-active-bg: var(--copper-hi); --bs-btn-active-border-color: var(--copper-hi); --bs-btn-active-color: var(--on-copper);
  background: var(--copper); color: var(--on-copper); border-color: var(--copper); }
.btn-primary:hover, .button-primary:hover { background: var(--copper-hi); color: var(--on-copper); }
[data-theme='light'] .btn-primary:hover, [data-theme='light'] .button-primary:hover { background: var(--copper-lo); border-color: var(--copper-lo); color: var(--on-copper); }
.btn-outline-primary, .button-outline {
  --bs-btn-color: var(--text); --bs-btn-border-color: var(--copper-line);
  --bs-btn-hover-bg: var(--copper-soft); --bs-btn-hover-border-color: var(--copper-line); --bs-btn-hover-color: var(--text);
  --bs-btn-active-bg: var(--copper-soft); --bs-btn-active-color: var(--text);
  color: var(--text); border-color: var(--copper-line); background: transparent; }

/* Шапка */
.site-header { background: color-mix(in srgb, var(--bg) 94%, transparent); border-bottom: 1px solid var(--hairline); backdrop-filter: blur(6px); }
.header-inner { gap: 1.5rem; min-height: 72px; padding-block: .5rem; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-family: var(--font-display);
  font-size: 1.3rem; font-weight: 500; letter-spacing: .01em; white-space: nowrap; min-height: 44px; }
.brand:hover { color: var(--text); }
.brand-mark { width: 28px; height: 28px; flex: none; fill: none; stroke: var(--copper-line); stroke-width: 1.6; stroke-linecap: round; }
.brand-mark .dot { fill: var(--copper); stroke: none; }
.nav.desktop-nav { gap: .25rem 1.1rem; margin-left: auto; flex-wrap: nowrap; }
.nav a, .language-nav a { color: var(--muted); background: none; border-radius: 0; padding: .4rem 0; min-height: 44px; font-size: .9375rem; text-decoration: none;
  border-bottom: 1px solid transparent; white-space: nowrap; }
.nav a:hover, .language-nav a:hover { color: var(--text); background: none; text-decoration: none; }
.nav a[aria-current] { color: var(--text); background: none; text-decoration: none; border-bottom-color: var(--copper-line); }
.header-tools { display: flex; align-items: center; gap: 1rem; flex: none; }
.language-nav { margin-left: 0; gap: 0; }
.language-nav a { font-size: .8125rem; padding: .4rem .35rem; color: var(--faint); font-variant-numeric: tabular-nums; border: 0; }
.language-nav a[aria-current] { color: var(--copper); background: none; text-decoration: none; }
.theme-toggle { display: inline-flex; align-items: center; gap: 9px; min-height: 44px; background: none; border: 0; padding: 0 2px; cursor: pointer;
  font-size: .8125rem; color: var(--muted); }
.theme-toggle:hover { color: var(--text); }
.theme-track { position: relative; width: 38px; height: 20px; border-radius: 20px; border: 1px solid var(--copper-line); background: var(--inset); flex: none; }
.theme-thumb { position: absolute; top: 2px; left: 2px; width: 14px; height: 14px; border-radius: 50%; background: var(--copper); transition: transform .3s var(--ease); }
[data-theme='light'] .theme-thumb { transform: translateX(18px); }
.telegram-icon { background: transparent; color: var(--copper); border: 1px solid var(--copper-line); }
.telegram-icon:hover { background: var(--copper-soft); color: var(--copper); }
.telegram-icon svg path[stroke] { stroke: var(--bg); }
.mobile-menu summary { border-color: var(--hairline); color: var(--text); text-decoration: none; }
.mobile-menu nav { box-shadow: var(--card-shadow); }
.mobile-menu nav a { color: var(--text); border-radius: 10px; padding: .7rem .8rem; border: 0; }
.mobile-menu nav a[aria-current] { color: var(--copper); background: var(--copper-soft); }

/* Подвал */
.footer { background: transparent; color: var(--faint); border-top: 1px solid var(--hairline); padding-block: 1.75rem 2.25rem; }
.footer a { color: var(--muted); text-decoration: none; }
.footer a:hover { color: var(--text); text-decoration: underline; }
.footer-inner { align-items: center; }

@media (max-width: 1499px) { .theme-label { display: none; } }
@media (max-width: 1279px) { .nav.desktop-nav { gap: .25rem .85rem; } .nav a { font-size: .875rem; } }
@media (max-width: 1199px) {
  .header-inner { display: flex; flex-wrap: wrap; gap: .5rem 1rem; }
  .mobile-menu { margin-left: auto; }
  .header-tools { gap: .5rem; }
  .language-nav { order: 0; border: 0; padding: 0; grid-column: auto; grid-row: auto; }
}
@media (max-width: 767px) {
  .header-inner { min-height: 60px; column-gap: .5rem; }
  .mobile-menu summary { font-size: .875rem; padding: .5rem .75rem; min-height: 44px; white-space: nowrap; }
  .brand { font-size: 1.125rem; }
  .brand-mark { width: 24px; height: 24px; }
  .header-tools { order: 3; width: 100%; justify-content: space-between; border-top: 1px solid var(--hairline); padding-top: .25rem; }
}
@media (max-width: 379px) {
  .brand { font-size: 1rem; gap: 7px; }
  .mobile-menu summary { padding-inline: .6rem; }
}
@media print {
  :root, [data-theme] { --bg: #fff; --surface: #fff; --text: #000; --muted: #333; --copper: #000; --hairline: #ccc; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: .01ms !important; animation: none !important; }
}

/* Link groups: separate, tappable items with room around them */
.link-group { list-style: none; padding: 0; margin: 2.5rem 0 0; display: flex; flex-wrap: wrap; gap: .75rem; font-family: var(--bs-body-font-family); font-size: 1rem; line-height: 1.4; }
.link-group li { margin: 0; }
.link-group a { display: inline-flex; align-items: center; min-height: 44px; padding: .55rem 1.1rem; border: 1px solid var(--line-strong); border-radius: 999px; color: var(--copper); text-decoration: none; transition: border-color .15s, background-color .15s; }
.link-group a:hover, .link-group a:focus-visible { border-color: var(--copper); background: var(--copper-soft); }
.prose > .link-group:last-child { margin-bottom: 1rem; }
.author-note .link-group { margin-top: 1rem; }
.detail-layout { padding-bottom: 5.5rem; }
@media (max-width: 767px) { .link-group { flex-direction: column; align-items: stretch; } .link-group a { display: flex; } .detail-layout { padding-bottom: 4rem; } }