/* ============================================================
   lg-shell — глобальный хедер + футер (LEA-3015).
   Извлечено из cms.leadup.guru (leadup-cms/app/(frontend)/styles/{header,footer}.css)
   и адаптировано под статический GitHub-Pages community.leadup.guru.
   Подключать ПОСЛЕ tokens.css.
   ============================================================ */

/* ============================================================
   HEADER (.lg-header) — DS v3 H1 «Full nav»
   ============================================================ */
.lg-header {
  position: sticky;
  inset-block-start: 0;
  z-index: 50;
  background: rgb(10, 15, 13, 0.72);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-block-end: 1px solid var(--border-1);
}
.lg-header__inner {
  display: flex;
  align-items: center;
  gap: var(--sp-6);
  max-inline-size: 1100px;
  margin-inline: auto;
  padding-block: var(--sp-4);
  padding-inline: var(--sp-6);
}
.lg-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-weight: var(--fw-semibold);
  color: var(--fg-1);
  text-decoration: none;
  white-space: nowrap;
}
.lg-brand__logo {
  display: block;
  block-size: 24px;
  inline-size: auto;
  max-inline-size: 120px;
  object-fit: contain;
  filter: brightness(10);
}
.lg-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-inline-start: var(--sp-4);
}
.lg-nav a {
  color: var(--fg-3);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: var(--fw-medium);
  padding-block: 7px;
  padding-inline: 14px;
  border-radius: var(--r-md);
  transition: color var(--dur-1) var(--ease),
              background var(--dur-1) var(--ease);
}
.lg-nav a:hover {
  color: var(--fg-1);
  background: var(--bg-4);
}
.lg-header__actions {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-inline-start: auto;
}

/* CTA в шапке — Teal pill, DS v3 .btn-p */
.lg-header .btn-p,
.lg-footer .btn-p {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: 8px 16px;
  border-radius: var(--r-lg);
  background: var(--teal);
  color: #061210;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--tracking-normal);
  border: 1px solid transparent;
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--dur-1) var(--ease),
              transform var(--dur-1) var(--ease);
}
.lg-header .btn-p:hover,
.lg-footer .btn-p:hover {
  background: var(--teal-hover);
  color: #061210;
  transform: translateY(-1px);
}

/* --- burger (mobile, <details>-based — pure CSS, no JS) --- */
.lg-mobile { display: none; position: relative; }
.lg-mobile > summary {
  list-style: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  inline-size: 34px;
  block-size: 34px;
  border-radius: var(--r-md);
  background: var(--bg-4);
  border: 1px solid var(--border-2);
  color: var(--fg-2);
}
.lg-mobile > summary::-webkit-details-marker { display: none; }
.lg-mobile > summary::before {
  content: "";
  inline-size: 16px;
  block-size: 10px;
  background-image: linear-gradient(currentcolor, currentcolor),
                    linear-gradient(currentcolor, currentcolor),
                    linear-gradient(currentcolor, currentcolor);
  background-size: 100% 1.5px;
  background-position: 0 0, 0 50%, 0 100%;
  background-repeat: no-repeat;
}
.lg-mobile[open] > summary::before {
  background-image: linear-gradient(currentcolor, currentcolor),
                    linear-gradient(currentcolor, currentcolor);
  background-size: 100% 1.5px;
  background-position: 0 50%, 0 50%;
  transform: rotate(45deg);
}

.lg-drawer {
  position: fixed;
  inset-inline: 0;
  inset-block-start: 65px;
  z-index: 49;
  border-block-end: 1px solid var(--border-1);
  background: rgb(10, 15, 13, 0.96);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  padding: var(--sp-5);
  max-block-size: calc(100vh - 65px);
  overflow-y: auto;
}
.lg-drawer__nav {
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
  margin-block-end: var(--sp-3);
}
.lg-drawer__nav a {
  color: var(--fg-1);
  text-decoration: none;
  padding-block: var(--sp-3);
  border-block-end: 1px solid var(--border-1);
  font-size: var(--text-md);
  font-weight: var(--fw-medium);
}
.lg-drawer__nav a:last-child { border-block-end: 0; }
.lg-drawer .btn-p {
  margin-block-start: var(--sp-4);
  inline-size: 100%;
}

@media (max-width: 720px) {
  .lg-nav { display: none; }
  .lg-mobile { display: inline-block; }
  .lg-header__actions .btn-p { display: none; }
}

/* ============================================================
   FOOTER (.lg-footer) — DS v3 F1 «Full 4-column» + brand col
   ============================================================ */
.lg-footer {
  margin-block-start: var(--sp-12);
  background: var(--bg-1);
  border-block-start: 1px solid var(--border-1);
  color: var(--fg-2);
}
.lg-footer__inner {
  max-inline-size: 1100px;
  margin-inline: auto;
  padding-block: var(--sp-10);
  padding-inline: var(--sp-6);
}
.lg-footer__cols {
  display: grid;
  grid-template-columns: 2fr repeat(4, minmax(0, 1fr));
  gap: var(--sp-10);
}
.lg-footer__col { display: block; }
.lg-footer__col--brand { max-inline-size: 320px; }
.lg-footer__brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  margin-block-end: var(--sp-3);
}
.lg-footer__logo {
  display: block;
  block-size: 24px;
  inline-size: auto;
  max-inline-size: 120px;
  object-fit: contain;
  filter: brightness(10);
}
.lg-footer__tagline {
  margin: var(--sp-2) 0 0;
  font-size: var(--text-sm);
  line-height: 1.55;
  color: var(--fg-3);
  max-inline-size: 280px;
}
.lg-footer .lg-footer__title {
  margin: 0 0 var(--sp-4);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--fw-medium);
  line-height: 1.2;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-4);
}
.lg-footer__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}
.lg-footer__list a {
  color: var(--fg-3);
  text-decoration: none;
  font-size: var(--text-sm);
  line-height: 1.5;
}
.lg-footer__list a:hover {
  color: var(--fg-1);
  text-decoration: underline;
  text-decoration-color: var(--teal);
  text-underline-offset: 3px;
}
.lg-footer__legal {
  margin-block-start: var(--sp-8);
  padding-block-start: var(--sp-6);
  border-block-start: 1px solid var(--border-1);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}
.lg-footer__legal-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3) var(--sp-6);
}
.lg-footer__legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3) var(--sp-5);
  list-style: none;
  margin: 0;
  padding: 0;
}
.lg-footer__legal-links a {
  color: var(--fg-3);
  text-decoration: none;
  font-size: var(--text-xs);
  line-height: 1.5;
}
.lg-footer__legal-links a:hover {
  color: var(--fg-1);
  text-decoration: underline;
  text-decoration-color: var(--teal);
  text-underline-offset: 3px;
}
.lg-footer__rights {
  margin: 0;
  font-size: var(--text-xs);
  color: var(--fg-3);
}

@media (max-width: 980px) {
  .lg-footer__cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--sp-6);
  }
  .lg-footer__col--brand {
    grid-column: 1 / -1;
    max-inline-size: none;
  }
}
@media (max-width: 480px) {
  .lg-footer__cols { grid-template-columns: 1fr; }
}