/* ==========================================================================
   НПК ЗНАМЯ — каркас страницы: шапка (с мегаменю) и подвал.
   ========================================================================== */

/* ---------- Шапка ---------- */
.site-header { position: sticky; top: 0; z-index: 50; background: var(--zn-white); border-bottom: 1px solid var(--zn-line); }

.topbar { background: var(--zn-bg); color: #3C4663; font-size: 13.5px; border-bottom: 1px solid var(--zn-line); }
.topbar__row { display: flex; align-items: center; gap: 8px 28px; min-height: 36px; }
.topbar__item { display: inline-flex; align-items: center; gap: 8px; color: inherit; text-decoration: none; white-space: nowrap; }
a.topbar__item:hover { color: var(--zn-accent-dark); }
.topbar__item .icon { color: var(--zn-navy); opacity: .75; }
.topbar__item:last-child { margin-left: auto; }

.site-header__row { display: flex; align-items: center; gap: 20px; min-height: var(--header-h); }
.site-header__logo { display: inline-flex; align-items: center; flex: none; text-decoration: none; }
.site-header__logo-img { display: block; width: auto; height: 66px; }
@media (max-width: 720px) { .site-header__logo-img { height: 59px; } }
.site-header__logo-text { font-weight: 800; font-size: 22px; color: var(--zn-navy); }

.site-nav { flex: 1; display: flex; align-items: center; gap: 4px 20px; }
.site-nav .menu { white-space: nowrap; display: flex; flex-wrap: nowrap; gap: 4px 22px; margin: 0; padding: 0; list-style: none; }
.site-nav a,
.mega__toggle { color: var(--zn-text); font: 600 15px/1 var(--font-sans); text-decoration: none; padding: 10px 0; display: inline-flex; align-items: center; gap: 6px; }
.site-nav .menu a { position: relative; }
.site-nav .menu a::after,
.mega__toggle::after {
	content: ""; position: absolute; left: 0; right: 0; bottom: 2px; height: 2px;
	background: var(--zn-accent); transform: scaleX(0); transform-origin: left; transition: transform .2s;
}
.site-nav .menu a:hover,
.site-nav .menu .current-menu-item > a { color: var(--zn-navy); }
.site-nav .menu a:hover::after,
.site-nav .menu .current-menu-item > a::after { transform: scaleX(1); }

/* ---------- Мегаменю каталога ---------- */
.mega__toggle {
	position: relative; border: 0; background: var(--zn-navy); color: var(--zn-white);
	padding: 0 18px; min-height: 42px; border-radius: 0; cursor: pointer;
	transition: background-color .15s;
}
.mega__toggle::after { display: none; }
.mega__toggle:hover,
.mega__toggle[aria-expanded="true"] { background: var(--zn-navy-deep); }
.mega { position: static; }
.mega__panel {
	position: absolute; left: 0; right: 0; top: 100%;
	background: var(--zn-white); border-bottom: 1px solid var(--zn-line);
	box-shadow: none;
	visibility: hidden; opacity: 0; transform: translateY(-6px);
	transition: opacity .18s, transform .18s, visibility .18s;
}
.mega.is-open .mega__panel { visibility: visible; opacity: 1; transform: none; }
.mega__grid {
	display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)) 300px; gap: 32px;
	width: 100%; max-width: var(--container);
	margin-inline: auto; padding: 32px var(--gutter) 36px;
}
.mega__h {
	display: block; margin-bottom: 12px; padding-bottom: 12px; border-bottom: 2px solid var(--zn-navy);
	font-weight: 800; font-size: 16px; color: var(--zn-navy); text-decoration: none;
}
.mega__h:hover { color: var(--zn-accent); }
.mega__col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.mega__col li a { display: block; padding: 6px 0; font-size: 15px; font-weight: 500; color: var(--zn-muted); text-decoration: none; }
.mega__col li a:hover { color: var(--zn-accent); }

.site-header__actions { display: flex; align-items: center; gap: 16px; margin-left: auto; }
.site-header__actions .btn { white-space: nowrap; }
@media (max-width: 1180px) { .site-header__actions .btn { display: none; } }
.site-header__phone { display: inline-flex; align-items: center; gap: 8px; color: var(--zn-navy); font: 500 15px/1 var(--font-mono); text-decoration: none; white-space: nowrap; }
.site-header__phone:hover { color: var(--zn-accent); }
.site-header__burger { display: none; width: 44px; height: 44px; border: 0; background: transparent; color: var(--zn-navy); cursor: pointer; }

@media (max-width: 1180px) {
	.topbar__item:nth-child(2) { display: none; }
	.site-header__phone span { display: none; }
}

@media (max-width: 980px) {
	.topbar { display: none; }
	.site-header__burger { display: inline-flex; align-items: center; justify-content: center; }
	.site-header__actions .btn { display: none; }
	.site-header__actions { gap: 0; }
	.site-header__phone { width: 44px; height: 44px; justify-content: center; }
	.site-nav {
		position: fixed; inset: var(--header-h) 0 0 0; padding: 12px var(--gutter) 32px;
		background: var(--zn-white); overflow-y: auto;
		display: none; flex-direction: column; align-items: stretch; gap: 8px;
	}
	.is-nav-open .site-nav { display: flex; }
	.site-nav .menu { flex-direction: column; gap: 0; }
	.site-nav .menu a { width: 100%; padding: 14px 0; border-bottom: 1px solid var(--zn-line); }
	.site-nav .menu a::after { display: none; }
	.mega__toggle { width: 100%; justify-content: space-between; min-height: 48px; }
	.mega__panel {
		position: static; box-shadow: none; border: 0; transform: none;
		visibility: visible; opacity: 1; display: none;
	}
	.mega.is-open .mega__panel { display: block; }
	.mega__grid { grid-template-columns: minmax(0, 1fr); gap: 20px; padding: 20px 0 8px; }
	.mega__preview { display: none; }
}

/* ---------- Подвал (светлый; тёмная только нижняя полоса) ---------- */
.site-footer { background: var(--zn-bg); color: var(--zn-muted); border-top: 1px solid var(--zn-line); }
.site-footer a { color: var(--zn-text); text-decoration: none; }
.site-footer a:hover { color: var(--zn-accent-dark); text-decoration: underline; text-underline-offset: 3px; }
.site-footer .site-footer__sub { color: var(--zn-navy); }
.site-footer .site-footer__phone,
.site-footer .site-footer__mail { color: var(--zn-navy); }

.site-footer__cta { background: var(--zn-white); border-bottom: 1px solid var(--zn-line); }
.site-footer__cta-grid {
	display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(24px, 5vw, 80px); align-items: center;
	padding-block: clamp(40px, 6vw, 72px);
}
.site-footer__eyebrow { display: block; margin-bottom: 14px; font: 500 13px/1 var(--font-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--zn-accent-dark); }
.site-footer__cta h2 { color: var(--zn-text); font-size: clamp(24px, 3vw, 36px); margin-bottom: 14px; }
.site-footer__cta p { margin: 0 0 24px; color: var(--zn-muted); max-width: 52ch; }
.site-footer__phone { display: block; font: 500 clamp(24px, 3vw, 34px)/1.2 var(--font-mono); color: var(--zn-navy); }
.site-footer__mail { display: inline-block; margin-top: 6px; font: 400 16px/1.4 var(--font-mono); }
.site-footer__form { padding: clamp(22px, 3vw, 36px); background: var(--zn-bg); border: 1px solid var(--zn-line); border-radius: 0; color: var(--zn-text); }
.site-footer__form .rfq { max-width: none; }
.site-footer__form .rfq__title { color: var(--zn-navy); font-size: 22px; }

.site-footer__grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.3fr; gap: 40px; padding-block: 48px; }
.site-footer__logo { display: inline-block; margin-bottom: 14px; }
.site-footer__logo img { display: block; width: auto; height: 92px; }
.site-footer__brand p { margin: 0; font-size: 15px; max-width: 38ch; }
.site-footer__h { margin: 0 0 16px; font: 500 13px/1 var(--font-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--zn-navy); }
.footer-menu,
.contact-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; font-size: 15px; }
.contact-list li { display: flex; gap: 12px; align-items: flex-start; }
.contact-list .icon { flex: none; margin-top: 3px; color: var(--zn-navy); }

.site-footer__legal { background: var(--zn-navy); color: #E6EAF5; padding-block: 18px; font-size: 13.5px; }
.site-footer__legal .container { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; }
.site-footer__legal a { color: var(--zn-white); }
.site-footer__legal a:hover { color: var(--zn-white); text-decoration: underline; }

.site-footer .field { color: var(--zn-text); }
.site-footer .field input,
.site-footer .field textarea { background: var(--zn-white); }
.site-footer .rfq__legal { color: var(--zn-muted); }
.site-footer .rfq__legal a { text-decoration: underline; }

@media (max-width: 980px) {
	.site-footer__cta-grid { grid-template-columns: minmax(0, 1fr); }
	.site-footer__grid { grid-template-columns: 1fr 1fr; }
	.site-footer__brand { grid-column: 1 / -1; }
}
@media (max-width: 600px) {
	.site-footer__grid { grid-template-columns: minmax(0, 1fr); padding-block: 36px; }
}
/* ---------- Мегаменю: детали ---------- */
.mega__num { display: block; margin-bottom: 6px; font: 500 12px/1 var(--font-mono); letter-spacing: .1em; color: var(--zn-accent-dark); }
.mega__h { border-bottom: 1px solid var(--zn-line); transition: color .15s, border-color .15s; }
.mega__h:hover { border-bottom-color: var(--zn-accent-dark); }
.mega__col li a { position: relative; transition: color .15s, padding-left .15s; }
.mega__col li a:hover { padding-left: 10px; }
.mega__col li a::before {
	content: ""; position: absolute; left: 0; top: 50%; width: 5px; height: 5px; margin-top: -2.5px;
	background: var(--zn-accent); opacity: 0; transition: opacity .15s;
}
.mega__col li a:hover::before { opacity: 1; }

.mega__foot { background: var(--zn-bg); border-top: 1px solid var(--zn-line); }
.mega__foot-row {
	display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 32px;
	width: 100%; max-width: var(--container);
	margin-inline: auto; padding: 16px var(--gutter);
}
.mega__all { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; color: var(--zn-navy); text-decoration: none; }
.mega__all:hover { color: var(--zn-accent-dark); }
.mega__help { font-size: 14.5px; color: var(--zn-muted); }
.mega__help a { color: var(--zn-navy); font-weight: 600; }
.mega__help a:hover { color: var(--zn-accent-dark); }

/* Затемнение страницы под открытым меню (шапка выше, z-index 50) */
body::after {
	content: ""; position: fixed; inset: 0; z-index: 40;
	background: rgba(20, 26, 46, .38); opacity: 0; pointer-events: none; transition: opacity .2s;
}
.is-mega-open body::after { opacity: 1; pointer-events: auto; }
@media (max-width: 980px) {
	body::after { display: none; }
	.mega__foot { background: none; border-top: 0; }
	.mega__foot-row { padding: 8px 0 0; }
}
.site-nav .mega__h { display: block; padding: 0 0 12px; font-size: 16px; font-weight: 800; }
.site-nav .mega__col li a { display: block; padding: 6px 0; font-size: 15px; font-weight: 500; line-height: 1.35; }
.site-nav .mega__col li a:hover { padding-left: 10px; }

/* ---------- Мегаменю: счётчик и фото-превью ---------- */
.mega__num em { margin-left: 8px; font-style: normal; color: var(--zn-muted); letter-spacing: .04em; }
.mega__preview {
	position: relative; grid-column: 5; grid-row: 1; align-self: start;
	aspect-ratio: 4 / 3; overflow: hidden; background: var(--zn-bg); border: 1px solid var(--zn-line);
}
.mega__preview-item { position: absolute; inset: 0; margin: 0; opacity: 0; transition: opacity .25s; }
.mega__preview-item.is-active { opacity: 1; }
.mega__preview-item img { display: block; width: 100%; height: 100%; object-fit: cover; }
.mega__preview-item figcaption {
	position: absolute; left: 10px; bottom: 10px; padding: 6px 10px;
	background: rgba(255, 255, 255, .94); font: 500 12px/1.3 var(--font-mono); color: var(--zn-navy-deep);
	letter-spacing: .04em; text-transform: uppercase;
}

/* ---------- Выпадающие подменю ---------- */
.site-nav .menu > li { position: relative; display: flex; align-items: center; padding-block: 14px; }
.submenu-toggle {
	display: inline-flex; align-items: center; justify-content: center; width: 22px; height: 22px; margin-left: 2px;
	padding: 0; border: 0; background: none; color: var(--zn-muted); cursor: pointer;
}
.submenu-toggle .icon { transition: transform .2s; }
.menu-item-has-children:hover > .submenu-toggle,
.menu-item-has-children.is-open > .submenu-toggle { color: var(--zn-accent-dark); }
.menu-item-has-children:hover > .submenu-toggle .icon,
.menu-item-has-children.is-open > .submenu-toggle .icon { transform: rotate(180deg); }

.site-nav .sub-menu {
	position: absolute; top: 100%; left: -18px; z-index: 5; min-width: 250px;
	margin: 0; padding: 8px 0; list-style: none;
	background: var(--zn-white); border: 1px solid var(--zn-line); border-top: 2px solid var(--zn-navy);
	box-shadow: none;
	visibility: hidden; opacity: 0; transform: translateY(-4px);
	transition: opacity .15s, transform .15s, visibility .15s;
}
.site-nav .menu-item-has-children:hover > .sub-menu,
.site-nav .menu-item-has-children:focus-within > .sub-menu,
.site-nav .menu-item-has-children.is-open > .sub-menu { visibility: visible; opacity: 1; transform: none; }
.site-nav .sub-menu li { display: block; padding: 0; }
.site-nav .sub-menu a { display: block; width: 100%; padding: 10px 20px; font-weight: 500; font-size: 15px; color: var(--zn-text); }
.site-nav .sub-menu a::after { display: none; }
.site-nav .sub-menu a:hover { background: var(--zn-bg); color: var(--zn-accent-dark); }

@media (max-width: 980px) {
	.site-nav .menu > li { flex-wrap: wrap; padding-block: 0; }
	.site-nav .menu > li > a { flex: 1; }
	.submenu-toggle { width: 48px; height: 48px; margin: 0; border-left: 1px solid var(--zn-line); }
	.site-nav .sub-menu {
		position: static; display: none; width: 100%; min-width: 0; padding: 0 0 8px 16px;
		border: 0; box-shadow: none; visibility: visible; opacity: 1; transform: none;
	}
	.site-nav .menu-item-has-children:hover > .sub-menu { display: none; }
	.site-nav .menu-item-has-children.is-open > .sub-menu { display: block; }
	.site-nav .sub-menu a { padding: 12px 0; border-bottom: 1px solid var(--zn-line); }
}

/* ---------- Кнопка «Каталог»: бургер слева, при открытии — крестик ---------- */
.mega__toggle { gap: 12px; }
.mega__icon { position: relative; display: inline-flex; width: 20px; height: 20px; flex: none; }
.mega__icon .icon { position: absolute; inset: 0; transition: opacity .15s, transform .2s; }
.mega__icon .icon--close { opacity: 0; transform: rotate(-90deg); }
.mega__toggle[aria-expanded="true"] .icon--menu { opacity: 0; transform: rotate(90deg); }
.mega__toggle[aria-expanded="true"] .icon--close { opacity: 1; transform: none; }
@media (max-width: 980px) { .mega__icon { display: none; } }

/* ---------- Подвал: колонки, реквизиты ---------- */
.site-footer__grid { grid-template-columns: 1.15fr 2.3fr 1fr 1.05fr 1.3fr; gap: 36px; }
.site-footer__badges { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; margin: 18px 0 0; padding: 0; }
.site-footer__badges li {
	padding: 6px 10px; border: 1px solid var(--zn-line); background: var(--zn-white);
	font: 500 12px/1.3 var(--font-mono); letter-spacing: .04em; color: var(--zn-navy);
}
.site-footer__catalog-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px 32px; }
.site-footer__sub { display: block; margin-bottom: 10px; padding-bottom: 8px; border-bottom: 1px solid var(--zn-line); font-weight: 700; font-size: 15px; }
.footer-menu--tight { gap: 7px; font-size: 14.5px; }
.site-footer__map { font-size: 14px; text-decoration: underline; text-underline-offset: 3px; }

.site-footer__req { border-top: 1px solid var(--zn-line); background: var(--zn-white); padding-block: 36px 40px; }
.req-list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px 32px; margin: 0; }
.req-list__item--wide { grid-column: span 2; }
.req-list dt { margin-bottom: 4px; font: 500 12px/1.3 var(--font-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--zn-muted); }
.req-list dd { margin: 0; font-size: 14.5px; color: var(--zn-text); overflow-wrap: anywhere; }
.req-list dd.is-mono { font: 500 14.5px/1.4 var(--font-mono); }

@media (max-width: 1180px) {
	.site-footer__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
	.site-footer__brand,
	.site-footer__catalog { grid-column: 1 / -1; }
	.site-footer__catalog-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
	.req-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
	.site-footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
	.site-footer__catalog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 520px) {
	.site-footer__grid { grid-template-columns: minmax(0, 1fr); }
	.req-list { grid-template-columns: minmax(0, 1fr); }
	.req-list__item--wide { grid-column: auto; }
}

/* ---------- Подвал: реквизиты компактно, внутри серого блока ---------- */
.site-footer__grid { padding-bottom: 36px; }
.site-footer__req { background: none; border-top: 0; padding-block: 0 36px; }
.site-footer__req .container { padding-top: 24px; border-top: 1px solid var(--zn-line); }
.site-footer__req .site-footer__h { margin-bottom: 14px; }
.req-list { display: flex; flex-wrap: wrap; gap: 8px 32px; }
.req-list__item { display: flex; align-items: baseline; gap: 8px; }
.req-list__item--wide { flex-basis: 100%; }
.req-list dt { margin: 0; font: 500 12px/1.4 var(--font-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--zn-muted); white-space: nowrap; }
.req-list dt::after { content: ":"; }
.req-list dd { margin: 0; font-size: 14px; color: var(--zn-text); }
.req-list dd.is-mono { font: 500 13.5px/1.4 var(--font-mono); }
@media (max-width: 520px) {
	.req-list__item { flex-direction: column; gap: 2px; }
}

/* Форма в подвале: имя и контакт в один ряд (ниже и аккуратнее) */
@media (min-width: 981px) {
	.site-footer__form .rfq { grid-template-columns: 1fr 1fr; }
	.site-footer__form .rfq > * { grid-column: 1 / -1; }
	.site-footer__form .rfq > label.field:nth-of-type(-n+2) { grid-column: auto; }
}