/* ==========================================================================
   Публичные страницы (для гостей): шапка, подвал, секции, общие блоки.
   Каркас: templates/app/public.html. Токены цветов — из app.css.
   ========================================================================== */

:root {
  --section-y: 112px;
  --container: 1200px;
}

body.public { background: var(--bg); font-size: 15px; }
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
@media (max-width: 640px) { .container { padding: 0 16px; } :root { --section-y: 72px; } }

.gradient-text {
  background: var(--brand-grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* ---------- Шапка ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s, box-shadow .2s;
}
.site-header.is-scrolled { border-bottom-color: var(--border); }
.site-header__inner { display: flex; align-items: center; gap: 24px; height: 72px; }
.site-header__actions { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.site-header__burger { display: none; }

.site-logo { display: inline-flex; align-items: center; flex-shrink: 0; }
.site-logo img { height: 30px; width: auto; }
.site-logo__dark { display: none; }
:root[data-theme="dark"] .site-logo__light { display: none; }
:root[data-theme="dark"] .site-logo__dark { display: block; }

.site-nav { display: flex; align-items: center; gap: 4px; }
.site-nav > a {
  padding: 8px 12px; border-radius: 8px;
  color: var(--text-2); font-weight: 600; font-size: 14px; white-space: nowrap;
  transition: color .15s, background .15s;
}
.site-nav > a:hover { color: var(--text); background: var(--surface-hover); }
.site-nav__mobile-actions { display: none; }

@media (max-width: 1080px) {
  .site-header__burger { display: inline-flex; }
  .site-nav {
    position: fixed; top: 72px; left: 0; right: 0; z-index: 49;
    flex-direction: column; align-items: stretch; gap: 2px;
    padding: 12px 16px 20px; max-height: calc(100vh - 72px); overflow-y: auto;
    background: var(--surface); border-bottom: 1px solid var(--border); box-shadow: var(--shadow-lg);
    transform: translateY(-8px); opacity: 0; pointer-events: none;
    transition: opacity .2s, transform .2s var(--ease);
  }
  .site-nav.is-open { transform: none; opacity: 1; pointer-events: auto; }
  .site-nav > a { padding: 12px; font-size: 16px; }
  .site-nav__mobile-actions { display: grid; gap: 8px; margin-top: 12px; }
}
@media (max-width: 1024px) { .hide-mobile { display: none !important; } }

/* ---------- Секции ---------- */
.section { padding: var(--section-y) 0; }
.section--alt { background: var(--surface-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { max-width: 720px; margin: 0 auto 48px; text-align: center; }
.section-head--left { margin-left: 0; text-align: left; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px; margin-bottom: 14px;
  font-size: 12px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--brand);
}
.eyebrow::before { content: ''; width: 18px; height: 2px; border-radius: 2px; background: var(--brand-grad); }
.section-title { font-size: clamp(28px, 4vw, 44px); line-height: 1.12; letter-spacing: -.025em; font-weight: 800; }
.section-lead { margin-top: 16px; font-size: 17px; line-height: 1.6; color: var(--text-2); }

/* ---------- Кнопки: крупнее на публичных страницах ---------- */
.btn-xl { height: 54px; padding: 0 26px; font-size: 16px; border-radius: 12px; }

/* ---------- Подвал ---------- */
.site-footer { padding: 64px 0 28px; border-top: 1px solid var(--border); background: var(--surface); }
.site-footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; }
.site-footer__brand p { margin: 16px 0 20px; max-width: 320px; font-size: 14px; }
.site-footer__social { display: flex; gap: 8px; }
.site-footer__social .btn i { font-size: 18px; }
.site-footer__title { margin-bottom: 14px; font-size: 13px; font-weight: 800; color: var(--text); }
.site-footer__grid > div > a:not(.site-logo):not(.btn) { display: block; padding: 5px 0; font-size: 14px; color: var(--text-2); }
.site-footer__grid > div > a:not(.site-logo):not(.btn):hover { color: var(--text); }
.site-footer__bottom {
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--border);
  font-size: 13px; color: var(--text-3);
}
.site-footer__bottom div { display: flex; gap: 20px; flex-wrap: wrap; }
.site-footer__bottom a { color: var(--text-3); }
.site-footer__bottom a:hover { color: var(--text); }
@media (max-width: 900px) { .site-footer__grid { grid-template-columns: 1fr 1fr; } .site-footer__brand { grid-column: 1 / -1; } }
@media (max-width: 480px) { .site-footer__grid { grid-template-columns: 1fr; } }

/* ---------- Появление при прокрутке ---------- */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }