/*
* critical.css — above-the-fold critical CSS for Ecopan public site
*
* Purpose: prevent FOUC / blank flash on slow connections (3G) by ensuring
* the browser paints a white body and a correctly-sized fixed header
* before the main CSS bundle (global.css → /assets/index.[hash].css) arrives.
*
* Rules deliberately use raw values (no CSS custom properties) because
* the token sheet has not loaded yet when this file is parsed.
* Keep in sync with:
* • src/styles/base/_reset.css (box-sizing, margin/padding reset)
* • src/styles/base/_body.css (body background, color, font-family)
* • src/styles/tokens/_layout.css (--header-height-sm: 3.25rem, --header-height-md: 4rem)
* • src/styles/tokens/_colors.css (#ffffff = --color-white, #0f172a = --color-slate-900,
* #e2e8f0 = --color-slate-200)
* Do NOT add anything here that is not strictly needed for first paint.
* This file is served from 'self' — no CSP hash needed.
*/
/*
* IMPORTANT: всё содержимое critical.css обёрнуто в @layer reset.
*
* Эта таблица грузится отдельным в head, ДО основного
* бандла. Если универсальный сброс `* { margin: 0 }` оставить вне @layer,
* по правилам CSS Cascade Layers он будет считаться unlayered и победит
* ВСЕ правила в layered главном бандле — включая `.container-main {
* margin-inline: auto }`. Эффект: все .container-main теряют центрирование,
* макет прижимается к левому краю.
*
* Главный бандл объявляет порядок: `@layer reset, tokens, base, utilities,
* components, overrides`. Когда critical.css первым вводит `@layer reset`,
* последующее объявление в главном бандле этот же reset помещает на самый
* низ каскада. utilities (`.container-main`) перебивают наш reset → центр
* восстанавливается.
*/
@layer reset {
/* ── Reset (minimal subset needed before main reset loads) ── */
*,
*::before,
*::after {
box-sizing: border-box;
margin: 0;
padding: 0;
}
/* ── Antialiasing (matches _reset.css) ───────────────────── */
html {
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
scroll-behavior: auto;
}
/* ── Body: white background + font stack fallback ────────── */
body {
background-color: #ffffff;
color: #0f172a;
/* System fallback until Inter Variable loads via */
font-family: system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
}
}
/* Header dimensions — keep in @layer reset same as the universal reset
above so utilities/components can still override. The ID selector here
has high specificity but layer order beats specificity. */
@layer reset {
/* ── Fixed header: dimensions + white bg so it never collapses ── */
#main-header {
position: fixed;
top: 0;
left: 0;
width: 100%;
/* z-index: 50 matches .header in Header.astro scoped style */
z-index: 50;
background-color: #ffffff;
border-bottom: 1px solid #e2e8f0;
/* 3.25rem = --header-height-sm (52px at 16px base) */
height: 3.25rem;
}
@media (min-width: 768px) {
#main-header {
/* 4rem = --header-height-md (64px at 16px base) */
height: 4rem;
}
}
/*
* Cookie consent banner anti-flash.
* The blocking inline script in Layout.astro sets
* `` synchronously when localStorage already
* holds a recorded choice. This rule then keeps the banner hidden from
* the very first paint — preventing the brief flash users saw between
* SSR (hidden by `hidden` attr → display:none) and JS hydration (which
* could remove the attr for a frame on some renders).
*/
[data-consent-known] [data-cookie-banner] {
display: none;
}
}