/* Eberprot P — дизайн-система «Современная лаборатория»
   Графит + светлый фон, технические рамки, моноширинные метки, таблицы сравнений и кодовые блоки.
   Без внешних шрифтов, CDN и зависимостей. */

:root {
  --bg: #f4f5f2;
  --paper: #ffffff;
  --grid: #e3e6df;
  --graphite: #1d2125;
  --graphite-2: #2c3238;
  --text: #1d2125;
  --muted: #4f575f;
  --line: #c9cdc5;
  --accent: #0a6b47;        /* «индикатор»: контраст на белом ≈ 6.4:1 */
  --accent-dark: #075035;
  --accent-tint: #e2f1ea;
  --signal: #8a4b00;        /* предупреждения: контраст на светлом > 6:1 */
  --signal-bg: #fff2df;
  --docs: #5a4fa8;
  --docs-tint: #ecebf8;
  --code-bg: #161a1e;
  --code-text: #e6eae3;
  --code-green: #7fd6a8;
  --focus: #1a5fd6;
  --radius: 6px;
  --container: 1140px;
  --measure: 72ch;
  --font-sans: "Inter", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, "Cascadia Mono", Menlo, Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 76px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background-color: var(--bg);
  /* миллиметровка: два слоя линий, локально */
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 32px 32px;
  background-position: -1px -1px;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: var(--accent); text-underline-offset: .18em; }
a:hover { color: var(--accent-dark); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }

h1, h2, h3 { line-height: 1.2; margin: 0 0 .6em; letter-spacing: -.015em; }
h1 { font-size: clamp(1.9rem, 1.3rem + 2.4vw, 2.9rem); font-weight: 800; }
h2 { font-size: clamp(1.35rem, 1.1rem + .9vw, 1.8rem); font-weight: 750; }
h3 { font-size: 1.1rem; font-weight: 700; }
p { margin: 0 0 1em; }
code, kbd, pre, .mono { font-family: var(--font-mono); }
:not(pre) > code { background: var(--grid); padding: .05em .35em; border-radius: 3px; font-size: .92em; }

.container { width: 100%; max-width: var(--container); margin-left: auto; margin-right: auto; padding-left: 16px; padding-right: 16px; }
@media (min-width: 720px) { .container { padding-left: 28px; padding-right: 28px; } }

.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link { position: absolute; left: 12px; top: -60px; z-index: 100; background: var(--accent); color: #fff; padding: 10px 16px; font-weight: 700; text-decoration: none; }
.skip-link:focus { top: 12px; color: #fff; }

/* Метка в стиле лабораторной маркировки */
.tag-mono {
  font-family: var(--font-mono); font-size: .74rem; letter-spacing: .06em; text-transform: uppercase;
  display: inline-flex; align-items: center; gap: 6px; color: var(--muted);
}
.tag-mono::before { content: "▸"; color: var(--accent); }

/* ---------- Шапка ---------- */
.site-header { background: var(--graphite); color: #fff; position: sticky; top: 0; z-index: 50; border-bottom: 3px solid var(--accent); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 10px 14px; flex-wrap: wrap; min-height: 60px; padding-top: 6px; padding-bottom: 6px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; }
.brand:hover { color: #fff; }
.brand-mark {
  font-family: var(--font-mono); font-weight: 700; font-size: .95rem; width: 36px; height: 36px; display: grid; place-items: center;
  border: 2px solid var(--code-green); color: var(--code-green); border-radius: 4px;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name { font-weight: 800; font-size: 1.1rem; letter-spacing: -.01em; }
.brand-tag { font-family: var(--font-mono); font-size: .72rem; color: #b8c0c6; }

.nav-toggle {
  display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 8px 14px; cursor: pointer;
  font: 700 .95rem var(--font-sans); color: #fff; background: transparent; border: 1px solid #5b646c; border-radius: var(--radius);
}
.nav-toggle-bars, .nav-toggle-bars::before, .nav-toggle-bars::after { display: block; width: 18px; height: 2px; background: currentColor; position: relative; content: ""; }
.nav-toggle-bars::before { position: absolute; top: -6px; }
.nav-toggle-bars::after { position: absolute; top: 6px; }

.main-nav { flex-basis: 100%; display: none; padding-bottom: 10px; }
.main-nav.is-open { display: block; }
.no-js .main-nav { display: block; }
.no-js .nav-toggle { display: none; }
.main-nav ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.main-nav a { display: block; padding: 10px 12px; color: #e9edf0; text-decoration: none; font-weight: 600; border-left: 3px solid transparent; }
.main-nav a:hover { background: var(--graphite-2); color: #fff; }
.main-nav a[aria-current="page"] { border-left-color: var(--code-green); background: var(--graphite-2); color: #fff; }

.lang-switch { list-style: none; margin: 0; padding: 0; display: flex; gap: 0; border: 1px solid #5b646c; border-radius: var(--radius); overflow: hidden; }
.lang-switch li + li { border-left: 1px solid #5b646c; }
.lang-switch a, .lang-switch span {
  display: inline-block; min-width: 40px; min-height: 36px; padding: 8px 8px; text-align: center;
  font: 700 .78rem var(--font-mono); text-transform: uppercase; color: #e9edf0; text-decoration: none;
}
.lang-switch a:hover { background: var(--graphite-2); color: #fff; }
.lang-switch [aria-current="true"] { background: var(--code-green); color: var(--graphite); }

@media (min-width: 1040px) {
  .nav-toggle { display: none; }
  .lang-switch { order: 2; }
  .main-nav { display: block; flex-basis: 100%; order: 3; padding: 0; border-top: 1px solid #3a4148; }
  .main-nav ul { display: flex; flex-wrap: wrap; }
  .main-nav a { padding: 10px 9px; font-size: .9rem; border-left: 0; border-bottom: 3px solid transparent; margin-bottom: -3px; white-space: nowrap; }
  .main-nav a[aria-current="page"] { border-bottom-color: var(--code-green); background: transparent; }
}

/* ---------- Хлебные крошки ---------- */
.breadcrumbs { padding-top: 16px; font: .85rem var(--font-mono); }
.breadcrumbs ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 4px; }
.breadcrumbs li { color: var(--muted); }
.breadcrumbs li + li::before { content: "/"; margin-right: 4px; color: var(--line); }
.breadcrumbs a { color: var(--muted); }

/* ---------- Рамка-«прибор» ---------- */
.frame { background: var(--paper); border: 1px solid var(--graphite); border-radius: var(--radius); position: relative; }
.frame::before, .frame::after { /* угловые засечки */
  content: ""; position: absolute; width: 12px; height: 12px; border: 2px solid var(--accent); pointer-events: none;
}
.frame::before { top: -5px; left: -5px; border-right: 0; border-bottom: 0; }
.frame::after { bottom: -5px; right: -5px; border-left: 0; border-top: 0; }

/* ---------- Первый экран ---------- */
.hero { padding-top: 24px; padding-bottom: 6px; }
.hero-card { padding: 26px 20px; display: grid; gap: 22px; }
@media (min-width: 720px) { .hero-card { padding: 40px; } }
@media (min-width: 960px) { .hero-card.has-term { grid-template-columns: 1.35fr 1fr; align-items: center; } }
.lead { font-size: 1.12rem; color: var(--muted); max-width: var(--measure); }
.hero-points { list-style: none; margin: 16px 0 0; padding: 0; display: grid; gap: 8px; }
.hero-points li { padding-left: 26px; position: relative; }
.hero-points li::before { content: "✓"; position: absolute; left: 0; top: 0; font-family: var(--font-mono); font-weight: 700; color: var(--accent); }
.hero-links { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.env-note { font: .82rem/1.5 var(--font-mono); color: var(--muted); border-left: 3px solid var(--line); padding-left: 10px; margin-top: 14px; max-width: var(--measure); }

.btn {
  display: inline-flex; align-items: center; min-height: 44px; padding: 10px 16px; border-radius: var(--radius);
  font-weight: 700; text-decoration: none; border: 1px solid var(--graphite); color: var(--graphite); background: var(--paper);
}
.btn:hover { background: var(--graphite); color: #fff; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); }

/* терминал на главной */
.terminal { background: var(--code-bg); color: var(--code-text); border-radius: var(--radius); overflow: hidden; font: .9rem/1.6 var(--font-mono); }
.terminal-bar { display: flex; gap: 6px; padding: 10px 12px; background: #23292f; }
.terminal-bar span { width: 10px; height: 10px; border-radius: 50%; background: #4b545c; }
.terminal pre { margin: 0; padding: 16px; white-space: pre-wrap; word-break: break-word; }
.terminal .prompt { color: var(--code-green); }

/* ---------- Секции ---------- */
main { display: block; padding-bottom: 40px; }
.section { padding-top: 30px; padding-bottom: 6px; }
.section-intro { color: var(--muted); max-width: var(--measure); }
.prose { max-width: var(--measure); }
.section > h2 { display: flex; align-items: baseline; gap: 10px; }
.section > h2::before { content: "//"; font-family: var(--font-mono); font-size: .8em; color: var(--accent); }

.toc { padding: 14px 18px; margin-top: 18px; }
.toc h2 { font: 700 .78rem var(--font-mono); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin-bottom: 8px; }
.toc ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px 18px; }

/* ---------- Карточки ---------- */
.grid { display: grid; gap: 14px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .grid-2, .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } }
.card { background: var(--paper); border: 1px solid var(--line); border-top: 3px solid var(--graphite); border-radius: var(--radius); padding: 18px; display: flex; flex-direction: column; gap: 8px; }
.card h3 { margin: 0; }
.card p { margin: 0; color: var(--muted); }
.card-link { position: relative; }
.card-link h3 a { color: var(--text); text-decoration: none; }
.card-link h3 a::after { content: ""; position: absolute; inset: 0; }
.card-link:hover { border-top-color: var(--accent); box-shadow: 0 4px 0 var(--grid); }
.card-link:focus-within { outline: 3px solid var(--focus); outline-offset: 2px; }
.card-link h3 a:focus-visible { outline: none; }
.card-index { font: 700 .75rem var(--font-mono); color: var(--accent); }

/* ---------- Код ---------- */
.code { margin: 10px 0 0; border-radius: var(--radius); overflow: hidden; background: var(--code-bg); }
.code-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; flex-wrap: wrap; padding: 6px 8px 6px 12px; background: #23292f; }
.code-os { font: 700 .75rem var(--font-mono); color: #cfd6db; }
.badge { display: inline-block; font: 700 .7rem var(--font-mono); padding: 2px 8px; border-radius: 999px; }
.badge-tested { background: var(--accent-tint); color: var(--accent-dark); }
.badge-docs { background: var(--docs-tint); color: var(--docs); }
.code pre { margin: 0; padding: 12px 14px; color: var(--code-text); font: .88rem/1.55 var(--font-mono); overflow-x: auto; }
.code pre.out { border-top: 1px dashed #3a4148; color: var(--code-green); }
.code pre.out::before { content: attr(data-label) "\A"; white-space: pre; color: #8d979f; font-size: .75rem; }
.copy-btn {
  font: 700 .72rem var(--font-mono); color: #e6eae3; background: transparent; border: 1px solid #5b646c; border-radius: 4px;
  min-height: 30px; padding: 4px 10px; cursor: pointer;
}
.copy-btn:hover { border-color: var(--code-green); color: var(--code-green); }
.code-meta { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

/* ---------- Пошаговые инструкции ---------- */
.steps { list-style: none; margin: 0; padding: 0; counter-reset: step; display: grid; gap: 14px; max-width: 900px; }
.step { counter-increment: step; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 18px 18px 18px; display: grid; grid-template-columns: auto 1fr; gap: 0 16px; }
.step::before {
  content: counter(step, decimal-leading-zero); font: 700 1rem var(--font-mono); color: #fff; background: var(--graphite);
  width: 40px; height: 40px; display: grid; place-items: center; border-radius: 4px; grid-row: span 4;
}
.step > * { grid-column: 2; min-width: 0; }
.step h3 { margin: 6px 0 6px; }
.step p { margin: 0 0 6px; }
.example { font-size: .95rem; color: var(--muted); border-left: 3px solid var(--grid); padding-left: 10px; margin: 8px 0 0; }

.panel { padding: 18px 20px; max-width: 900px; }
.panel h2, .callout h2 { font-size: 1.05rem; font-family: var(--font-mono); text-transform: uppercase; letter-spacing: .04em; margin-bottom: .5em; }
.checklist { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.checklist li { padding-left: 28px; position: relative; }
.checklist li::before { content: "[ ]"; position: absolute; left: 0; font: 700 .85rem/1.9 var(--font-mono); color: var(--accent); }
.bullets { margin: 0; padding-left: 1.2em; max-width: var(--measure); }
.bullets li { margin-bottom: 6px; }
.bullets li::marker { color: var(--accent); }

/* ---------- Инструменты ---------- */
.tools { display: grid; gap: 16px; }
@media (min-width: 900px) { .tools { grid-template-columns: repeat(2, 1fr); } }
.tool { padding: 20px; display: flex; flex-direction: column; gap: 10px; }
.tool h3 { font-family: var(--font-mono); font-size: 1.05rem; margin: 0; }
.spec { margin: 0; display: grid; grid-template-columns: max-content 1fr; gap: 6px 12px; font-size: .95rem; }
.spec dt { font: 700 .74rem/1.9 var(--font-mono); text-transform: uppercase; color: var(--muted); }
.spec dd { margin: 0; }
.level { font: 700 .74rem var(--font-mono); padding: 2px 8px; border: 1px solid var(--graphite); border-radius: 3px; }
.tool .btn { align-self: flex-start; margin-top: auto; }

/* ---------- Таблицы ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--graphite); border-radius: var(--radius); background: var(--paper); max-width: 100%; }
table { width: 100%; border-collapse: collapse; font-size: .95rem; }
caption { text-align: left; padding: 10px 14px; font: .8rem var(--font-mono); color: var(--muted); caption-side: bottom; border-top: 1px solid var(--line); }
th, td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--grid); vertical-align: top; }
thead th { background: var(--graphite); color: #fff; font-weight: 700; font-size: .88rem; white-space: nowrap; }
tbody th { font-weight: 700; }
tbody tr:last-child td, tbody tr:last-child th { border-bottom: 0; }
.compare { min-width: 760px; }
.row-kind { display: block; font: 700 .66rem var(--font-mono); text-transform: uppercase; letter-spacing: .05em; margin-top: 4px; }
.row-fact .row-kind { color: var(--accent-dark); }
.row-opinion { background: #fafaf7; }
.row-opinion .row-kind { color: var(--docs); }

/* ---------- Глоссарий ---------- */
.alpha { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; padding: 0; margin: 0; }
.alpha a { display: inline-grid; place-items: center; min-width: 40px; min-height: 40px; padding: 0 8px; font: 700 .9rem var(--font-mono); border: 1px solid var(--graphite); border-radius: 4px; background: var(--paper); text-decoration: none; color: var(--text); }
.alpha a:hover { background: var(--graphite); color: #fff; }
.letter-group { margin-top: 26px; }
.letter-group > h2 { font-family: var(--font-mono); font-size: 1.4rem; border-bottom: 2px solid var(--graphite); padding-bottom: 4px; max-width: 900px; }
.term { padding: 16px 18px; margin-top: 12px; max-width: 900px; }
.term h3 { font-size: 1.15rem; }
.term p { margin: 0 0 6px; }
.not-confuse { font-size: .92rem; color: var(--muted); }
.not-confuse strong { font-family: var(--font-mono); font-size: .78rem; text-transform: uppercase; color: var(--signal); margin-right: 6px; }

/* ---------- Предупреждения / врезки ---------- */
.callout { border: 1px solid var(--signal); border-left-width: 6px; background: var(--signal-bg); padding: 16px 18px; border-radius: var(--radius); max-width: 900px; }
.callout p { margin: 0; }
.callout h2 { color: var(--signal); }
.callout-myth { border-color: var(--docs); background: var(--docs-tint); }
.callout-myth h2 { color: var(--docs); }
.provenance { border: 2px dashed var(--signal); background: var(--paper); padding: 16px 18px; border-radius: var(--radius); max-width: 900px; }
.provenance h2 { font: 700 1rem var(--font-mono); text-transform: uppercase; color: var(--signal); }
.status-badge { display: inline-block; font: 700 .74rem var(--font-mono); padding: 3px 10px; border-radius: 3px; background: var(--graphite); color: #fff; }

/* ---------- FAQ ---------- */
.faq-item { background: var(--paper); border: 1px solid var(--line); border-left: 3px solid var(--graphite); border-radius: var(--radius); padding: 14px 18px; max-width: 900px; margin-bottom: 10px; }
.faq-item h3 { margin-bottom: .3em; }
.faq-item p { margin: 0; color: var(--muted); }

/* ---------- Каталог ---------- */
.catalog { padding: 24px 20px; }
@media (min-width: 720px) { .catalog { padding: 30px 34px; } }
.catalog-empty { font-family: var(--font-mono); font-size: .9rem; border: 1px dashed var(--line); padding: 14px; color: var(--muted); background: var(--bg); }
.catalog-cols { display: grid; gap: 20px; margin-top: 18px; }
@media (min-width: 820px) { .catalog-cols { grid-template-columns: 1fr 1fr; } }
.catalog h3 { font-size: 1rem; }

/* ---------- Связанные / источники ---------- */
.related { border-top: 1px solid var(--graphite); margin-top: 32px; padding-top: 24px; }
.sources { font-size: .95rem; color: var(--muted); }
.sources ul { padding-left: 1.2em; margin: 0 0 8px; }
.verify-note { font: .82rem/1.5 var(--font-mono); color: var(--muted); max-width: var(--measure); }

/* ---------- Подвал ---------- */
.site-footer { background: var(--graphite); color: #d9dee2; padding: 36px 0 22px; margin-top: 24px; border-top: 3px solid var(--accent); }
.site-footer a { color: #e9edf0; }
.site-footer a:hover { color: var(--code-green); }
.footer-grid { display: grid; gap: 24px; }
@media (min-width: 820px) { .footer-grid { grid-template-columns: 1.3fr 1fr 1fr; } }
.site-footer h2 { font: 700 .78rem var(--font-mono); text-transform: uppercase; letter-spacing: .08em; color: var(--code-green); }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.footer-bottom { border-top: 1px solid #3a4148; margin-top: 24px; padding-top: 14px; display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; font: .8rem var(--font-mono); }

@media print {
  .site-header, .site-footer, .skip-link, .nav-toggle, .copy-btn { display: none !important; }
  body { background: #fff; }
}

/* === Статьи-размещения и список публикаций (postbuild.py) === */
.pub-wrap { padding-top: 8px; padding-bottom: 48px; }
.pub { max-width: 780px; background: #ffffff; color: #1d2125; border: 1px solid #c9cdc5; border-radius: 6px; padding: clamp(18px, 4vw, 44px); overflow-wrap: break-word; }
.pub-kicker { margin: 0 0 8px; font-size: .78rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: #0a6b47; }
.pub h1 { font-family: var(--font-sans); font-size: clamp(1.55rem, 3.4vw, 2.25rem); line-height: 1.2; margin: 0 0 14px; }
.pub-lead { font-size: 1.12rem; line-height: 1.6; margin: 0; }
.pub-meta { margin: 18px 0 22px; padding: 8px 0; border-top: 1px solid #c9cdc5; border-bottom: 1px solid #c9cdc5; font-size: .85rem; color: #4f575f; }
.pub-toc { margin: 0 0 8px; padding: 12px 18px; border: 1px solid #c9cdc5; border-radius: 6px; }
.pub .pub-toc h2 { font-size: .95rem; margin: 0 0 6px; font-family: inherit; }
.pub-toc ol { margin: 0; padding-left: 1.3em; }
.pub-toc li { margin: 3px 0; }
.pub h2 { font-family: var(--font-sans); font-size: 1.35rem; line-height: 1.3; margin: 30px 0 10px; scroll-margin-top: 16px; }
.pub p, .pub li { line-height: 1.65; }
.pub ul, .pub ol { padding-left: 1.3em; }
.pub li { margin: 5px 0; }
.pub a { color: #0a6b47; text-decoration-thickness: 1px; text-underline-offset: 2px; overflow-wrap: anywhere; }
.pub-note { margin: 18px 0; padding: 12px 16px; background: #e2f1ea; border-left: 4px solid #0a6b47; border-radius: 0 6px 6px 0; }
.pub-note p { margin: 0; }
.pub-sources { margin-top: 28px; font-size: .92rem; }
.pub-foot { margin-top: 30px; padding-top: 12px; border-top: 1px solid #c9cdc5; font-size: .92rem; }
.pub-list { list-style: none; margin: 16px 0 24px; padding: 0; display: grid; gap: 12px; }
.pub-list li { background: #ffffff; border: 1px solid #c9cdc5; border-radius: 6px; padding: 14px 16px; }
.pub-list a { font-family: var(--font-sans); font-weight: 700; font-size: 1.05rem; color: #0a6b47; overflow-wrap: anywhere; }
.pub-list p { margin: 6px 0 4px; color: #4f575f; font-size: .95rem; line-height: 1.5; }
.pub-list-meta { font-size: .8rem; color: #4f575f; }
.pub { margin-top: 14px; }