/* TGI — общая основа всех страниц: сброс, типографика, контейнер, шапка, подвал.
   Порядок подключения: tokens.css → tgi.css (компоненты) → base.css → стили страницы. */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; min-height: 100vh; background: var(--surface); color: var(--ink);
  font: 400 17px/27px var(--font-sans); font-feature-settings: "kern" 1;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; }
a { color: var(--violet-text); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 2px; }
::selection { background: var(--violet); color: var(--on-violet); }
h1, h2, h3, h4 { margin: 0; text-wrap: balance; }
p { margin: 0; text-wrap: pretty; }
button { font: inherit; }
[hidden] { display: none !important; }

.sr-only { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: 16px; top: -60px; z-index: 100; padding: 10px 16px; border-radius: var(--radius-m); background: var(--ink); color: var(--surface); font-weight: 600; text-decoration: none; }
.skip-link:focus { top: 12px; }

/* Контейнер: поля не уже 16px, контент до 1200px. */
.wrap { width: 100%; max-width: 1264px; margin-inline: auto; padding-inline: var(--space-4); }
@media (min-width: 720px) { .wrap { padding-inline: var(--space-6); } }

/* Типографика (адаптивные размеры поверх стилей дизайн-системы). */
.t-eyebrow { font: 600 12px/16px var(--font-sans); letter-spacing: .14em; text-transform: uppercase; color: var(--ink-muted); }
.t-display-xl { font: 800 clamp(40px, 7.2vw, 80px)/0.98 var(--font-display); letter-spacing: -0.035em; }
.t-display-l { font: 800 clamp(30px, 4.6vw, 52px)/1.04 var(--font-display); letter-spacing: -0.03em; }
.t-thin { font-weight: 300; letter-spacing: -0.02em; }
.t-display-m { font: 700 clamp(24px, 3vw, 32px)/1.12 var(--font-display); letter-spacing: -0.02em; }
.t-display-s { font: 700 20px/1.25 var(--font-display); letter-spacing: -0.01em; }
.t-lead { font: 400 clamp(18px, 1.6vw, 20px)/1.55 var(--font-sans); color: var(--ink-muted); max-width: 40em; }
.t-small { font: 400 15px/22px var(--font-sans); }
.t-caption { font: 500 13px/18px var(--font-sans); letter-spacing: .01em; color: var(--ink-muted); }
.t-muted { color: var(--ink-muted); }
.t-num { font-variant-numeric: tabular-nums; }
.nowrap { white-space: nowrap; }

/* Шапка */
.site-header {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 50;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(14px); -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid transparent; transition: border-color .2s ease;
}
.site-header.is-scrolled { border-bottom-color: var(--line); }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); min-height: 68px; }
.site-header .tgi-logo svg { height: 26px; }
.site-nav { display: flex; align-items: center; gap: var(--space-5); }
.site-nav a:not(.tgi-btn) { color: var(--ink); text-decoration: none; font: 500 15px/1 var(--font-sans); padding: 10px 2px; }
.site-nav a:not(.tgi-btn):hover { color: var(--violet-text); }
.site-nav .nav-link--wide { display: none; }
.site-nav .nav-link { display: inline-flex; align-items: center; min-height: 44px; padding: 0 6px; }
.site-nav [data-header-cta] { min-height: 44px; }
@media (min-width: 880px) { .site-nav .nav-link--wide { display: inline-block; } }
@media (max-width: 420px) { .site-header .tgi-logo svg { height: 22px; } .site-header .tgi-btn { padding: 0 14px; } }

/* Разделы */
.section { padding-block: var(--space-9); }
@media (min-width: 960px) { .section { padding-block: var(--space-10); } }
.section-head { display: grid; gap: var(--space-4); margin-bottom: var(--space-7); max-width: 760px; }

/* Подвал */
.site-footer { margin-top: var(--space-9); padding-block: var(--space-8) calc(var(--space-6) + env(safe-area-inset-bottom, 0px)); background: var(--block-ink); color: var(--on-block-ink); }
.site-footer a { color: var(--on-block-ink); text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }
.site-footer__grid { display: grid; gap: var(--space-6); grid-template-columns: 1fr; }
@media (min-width: 760px) { .site-footer__grid { grid-template-columns: 1.4fr 1fr 1fr; } }
.site-footer .tgi-logo { color: var(--on-block-ink); }
.site-footer .tgi-logo svg { height: 28px; }
.site-footer__links { display: grid; gap: 10px; margin: 0; padding: 0; list-style: none; font: 500 15px/22px var(--font-sans); }
.site-footer__note { margin-top: var(--space-4); max-width: 34em; font: 400 14px/21px var(--font-sans); color: rgba(245,244,240,.66); }
.site-footer__bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-3); margin-top: var(--space-7); padding-top: var(--space-5); border-top: 1px solid rgba(245,244,240,.14); font: 400 13px/18px var(--font-sans); color: rgba(245,244,240,.6); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}