/* =========================================================
   BlinkyWave · Шапка с мега-меню + футер
   ========================================================= */

/* ============ ШАПКА ============ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 90;
  height: var(--nav-h);
  display: flex; align-items: center;
  transition: background var(--t-2) var(--e-out), box-shadow var(--t-2), border-color var(--t-2);
  border-bottom: 1px solid rgba(255,255,255,.5);
  background: rgba(255,255,255,.55);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
}
.nav.is-stuck {
  background: rgba(255,255,255,.82);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom-color: var(--line);
  box-shadow: var(--sh-1);
}
.nav__inner { display: flex; align-items: center; gap: 20px; width: 100%; }

/* — Логотип-волна — */
.brand { display: inline-flex; align-items: center; gap: 11px; }
.brand__mark { width: 38px; height: 38px; flex-shrink: 0; }
.brand__name { font-family: var(--f-display); font-weight: 700; font-size: 1.18rem; letter-spacing: -.04em; color: var(--ink); }
.brand__name b { color: var(--cobalt); font-weight: 700; }

/* — Основное меню — */
.menu { display: flex; align-items: center; gap: 2px; margin-left: 10px; }
.menu__item { position: relative; }
/* Невидимый «мостик» через зазор — чтобы курсор доходил до панели не закрывая её */
.menu__item::after { content: ""; position: absolute; left: 0; right: 0; top: 100%; height: 18px; display: none; }
.menu__item:hover::after, .menu__item.is-open::after { display: block; }
.menu__btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 10px 15px; border-radius: var(--r-1);
  font-weight: 600; font-size: .96rem; color: var(--ink);
  transition: background var(--t-1), color var(--t-1);
}
.menu__btn .chev { width: 11px; height: 11px; transition: transform var(--t-2) var(--e-out); color: var(--tx-3); }
.menu__item:hover .menu__btn,
.menu__item.is-open .menu__btn { background: rgba(36,56,224,.07); color: var(--cobalt); }
.menu__item.is-open .menu__btn .chev { transform: rotate(180deg); }

/* — Выдвижная панель — */
.mega {
  position: absolute; top: calc(100% + 14px); left: 50%;
  transform: translateX(-50%) translateY(-8px);
  width: max-content; min-width: 460px; max-width: 92vw;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-3);
  box-shadow: var(--sh-3);
  padding: 14px;
  opacity: 0; visibility: hidden; pointer-events: none;
  transition: opacity var(--t-2) var(--e-out), transform var(--t-2) var(--e-out), visibility var(--t-2);
}
.mega::before { /* «носик» к кнопке */
  content: ""; position: absolute; top: -7px; left: 50%; transform: translateX(-50%) rotate(45deg);
  width: 13px; height: 13px; background: var(--surface);
  border-left: 1px solid var(--line); border-top: 1px solid var(--line);
}
.menu__item.is-open .mega { opacity: 1; visibility: visible; pointer-events: auto; transform: translateX(-50%) translateY(0); }

.mega__grid { display: grid; grid-template-columns: repeat(2, minmax(200px, 1fr)); gap: 6px; }
.mega__link {
  display: grid; grid-template-columns: 38px 1fr; align-items: center; gap: 12px;
  padding: 12px 13px; border-radius: var(--r-2);
  transition: background var(--t-1);
}
.mega__link:hover { background: var(--paper-2); }
.mega__ico {
  width: 38px; height: 38px; border-radius: 11px;
  display: grid; place-items: center;
  background: rgba(36,56,224,.08); color: var(--cobalt);
  transition: background var(--t-1), color var(--t-1);
}
.mega__link:hover .mega__ico { background: var(--cobalt); color: #fff; }
.mega__ico svg { width: 19px; height: 19px; }
.mega__link { display: grid; grid-template-columns: 38px 1fr; align-items: center; gap: 12px; padding: 12px 13px; border-radius: var(--r-2); transition: background var(--t-1); }
.mega__t { display: block; font-weight: 600; color: var(--ink); font-size: .96rem; }
.mega__d { display: block; margin-top: 2px; font-size: .81rem; color: var(--tx-3); line-height: 1.35; }

.mega__foot {
  margin-top: 10px; padding: 13px 14px;
  border-radius: var(--r-2);
  background: var(--ink);
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
}
.mega__foot span { color: #c7d2f5; font-size: .86rem; }
.mega__foot b { color: #fff; font-family: var(--f-mono); }

/* — Действия справа — */
.nav__actions { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.nav__burger {
  display: none; width: 44px; height: 44px; border-radius: 11px;
  border: 1px solid var(--line); background: var(--surface);
  flex-direction: column; align-items: center; justify-content: center; gap: 5px;
}
.nav__burger span { width: 18px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform var(--t-2), opacity var(--t-1); }
.nav__burger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger.is-open span:nth-child(2) { opacity: 0; }
.nav__burger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* подложка под открытым меню */
.nav__scrim {
  position: fixed; inset: var(--nav-h) 0 0; z-index: 80;
  background: rgba(11,20,55,.18);
  backdrop-filter: blur(2px);
  opacity: 0; visibility: hidden; transition: opacity var(--t-2), visibility var(--t-2);
}
.nav__scrim.is-on { opacity: 1; visibility: visible; }

/* ============ ФУТЕР ============ */
.foot { background: var(--panel-grad); color: #aeb9dd; margin-top: clamp(60px, 8vw, 110px); position: relative; overflow: hidden; box-shadow: 0 -1px 0 rgba(143,178,255,.12); }
.foot__wave { position: absolute; top: 0; left: 0; right: 0; height: 80px; opacity: .5; pointer-events: none; }
.foot__top { display: grid; grid-template-columns: 1.7fr repeat(3, 1fr); gap: clamp(28px, 4vw, 56px); padding-block: clamp(52px, 6vw, 78px) 44px; position: relative; }
.foot__brand .brand__name { color: #fff; }
.foot__brand .brand__name b { color: var(--sky); }
.foot__about { margin: 18px 0 22px; max-width: 330px; font-size: .92rem; color: #93a0cb; }
.foot__net { display: inline-flex; align-items: center; gap: 9px; font-family: var(--f-mono); font-size: .8rem; color: var(--signal); padding: 7px 13px; border: 1px solid rgba(255,255,255,.12); border-radius: 999px; }
.foot__net .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--signal); box-shadow: 0 0 0 4px rgba(18,214,194,.18); }

.foot__col h4 { color: #fff; font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; font-family: var(--f-mono); font-weight: 600; margin-bottom: 16px; }
.foot__col a { display: block; padding: 6px 0; color: #a7b2d8; font-size: .93rem; transition: color var(--t-1), transform var(--t-1); width: fit-content; }
.foot__col a:hover { color: #fff; transform: translateX(4px); }

.foot__social { display: flex; gap: 9px; margin-top: 22px; }
.foot__social a {
  width: 42px; height: 42px; border-radius: 12px;
  border: 1px solid rgba(255,255,255,.13);
  display: grid; place-items: center; color: #c7d2f5;
  transition: all var(--t-1) var(--e-out);
}
.foot__social a:hover { background: var(--cobalt); border-color: var(--cobalt); color: #fff; transform: translateY(-3px); }
.foot__social svg { width: 19px; height: 19px; }

.foot__bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-block: 24px;
  display: flex; flex-wrap: wrap; gap: 14px; justify-content: space-between; align-items: center;
  font-size: .85rem; color: #7f8cb8;
}
.foot__bottom .mono { color: #93a0cb; }
.foot__pay { display: flex; gap: 8px; align-items: center; }
.foot__pay span { padding: 5px 11px; border: 1px solid rgba(255,255,255,.12); border-radius: 7px; font-family: var(--f-mono); font-size: .74rem; color: #aeb9dd; }

/* ============ Мобильная навигация ============ */
.mnav { position: fixed; inset: var(--nav-h) 0 0; z-index: 95; background: var(--surface); transform: translateX(100%); transition: transform var(--t-3) var(--e-out); overflow-y: auto; padding: 18px var(--gut) 40px; }
.mnav.is-open { transform: none; }
.mnav__group { border-bottom: 1px solid var(--line-2); }
.mnav__head { width: 100%; display: flex; align-items: center; justify-content: space-between; padding: 18px 2px; font-family: var(--f-display); font-size: 1.05rem; color: var(--ink); }
.mnav__head .chev { width: 13px; transition: transform var(--t-2); color: var(--tx-3); }
.mnav__group.is-open .mnav__head .chev { transform: rotate(180deg); }
.mnav__sub { max-height: 0; overflow: hidden; transition: max-height var(--t-3) var(--e-out); }
.mnav__sub a { display: block; padding: 11px 14px; color: var(--tx-2); font-weight: 500; }
.mnav__cta { margin-top: 26px; display: grid; gap: 12px; }

@media (max-width: 980px) {
  .menu, .nav__actions .btn { display: none; }
  .nav__burger { display: flex; }
  .foot__top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .foot__top { grid-template-columns: 1fr; }
}