/* ============================================================
   Drone Theme - main stylesheet
   Tech-dark palette with flight-blue accents
   ============================================================ */

:root {
	--color-bg: #0b1120;
	--color-bg-soft: #111a2e;
	--color-bg-alt: #0e1526;
	--color-border: #1e2a44;
	--color-primary: #00a8ff;
	--color-primary-dark: #0086cc;
	--color-accent: #ff6b35;
	--color-text: #e8eef7;
	--color-text-muted: #93a4bd;
	--color-white: #ffffff;
	--font-body: "Inter", system-ui, -apple-system, sans-serif;
	--font-head: "Rajdhani", "Inter", sans-serif;
	--radius: 12px;
	--radius-sm: 8px;
	--shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
	--container: 1240px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
	margin: 0;
	font-family: var(--font-body);
	font-size: 16px;
	line-height: 1.6;
	color: var(--color-text);
	background: var(--color-bg);
	-webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--color-primary); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--color-white); }

h1, h2, h3, h4 {
	font-family: var(--font-head);
	font-weight: 700;
	line-height: 1.2;
	margin: 0 0 .5em;
	color: var(--color-white);
	letter-spacing: .2px;
}

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

.screen-reader-text {
	position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
	overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------- Buttons ---------- */
.btn {
	display: inline-block;
	padding: 12px 26px;
	border-radius: var(--radius-sm);
	font-family: var(--font-head);
	font-weight: 600;
	font-size: 15px;
	letter-spacing: .4px;
	border: 1px solid transparent;
	cursor: pointer;
	transition: all .2s ease;
}
.btn--primary { background: var(--color-primary); color: var(--color-bg); }
.btn--primary:hover { background: var(--color-primary-dark); color: var(--color-bg); transform: translateY(-1px); }
.btn--ghost { background: transparent; color: var(--color-text); border-color: var(--color-border); }
.btn--ghost:hover { border-color: var(--color-primary); color: var(--color-primary); }
.btn--sm { padding: 8px 18px; font-size: 13px; }
.btn--lg { padding: 15px 34px; font-size: 16px; }

/* ---------- Header ---------- */
.site-header { position: sticky; top: 0; z-index: 100; background: var(--color-bg-soft); border-bottom: 1px solid var(--color-border); }

.top-bar { background: var(--color-bg-alt); border-bottom: 1px solid var(--color-border); font-size: 13px; }
.top-bar__inner { display: flex; justify-content: space-between; align-items: center; min-height: 36px; gap: 16px; }
.top-bar__contact { display: flex; gap: 20px; color: var(--color-text-muted); }
.top-bar__contact a { color: var(--color-text-muted); }
.top-bar__contact a:hover { color: var(--color-primary); }
.top-bar__lang { margin-left: auto; }

.main-bar { position: relative; }
.main-bar__inner { display: flex; align-items: center; gap: 28px; min-height: 72px; }
.site-branding { flex-shrink: 0; }
.site-branding img { max-height: 46px; width: auto; }
.site-branding__name { font-family: var(--font-head); font-size: 24px; font-weight: 700; color: var(--color-white); }

.main-nav { flex: 1; }
.main-nav__list, .main-nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 6px; }
.main-nav__list > li > a {
	display: block; padding: 10px 16px; color: var(--color-text);
	font-family: var(--font-head); font-weight: 600; font-size: 15px; letter-spacing: .3px;
	border-radius: var(--radius-sm); position: relative;
}
.main-nav__list > li > a:hover, .main-nav__list > li.current-menu-item > a,
.main-nav__list > li.current_page_item > a { color: var(--color-primary); }
.main-nav__list > li.current-menu-item > a::after {
	content: ""; position: absolute; left: 16px; right: 16px; bottom: 4px; height: 2px;
	background: var(--color-primary); border-radius: 2px;
}
/* submenu */
.main-nav__list li { position: relative; }
.main-nav__list li ul {
	position: absolute; top: 100%; left: 0; min-width: 220px; flex-direction: column;
	background: var(--color-bg-soft); border: 1px solid var(--color-border);
	border-radius: var(--radius-sm); padding: 8px; opacity: 0; visibility: hidden;
	transform: translateY(8px); transition: all .2s ease; box-shadow: var(--shadow);
}
.main-nav__list li:hover > ul, .main-nav__list li:focus-within > ul {
	opacity: 1; visibility: visible; transform: translateY(0);
}
.main-nav__list li ul a { display: block; padding: 8px 12px; color: var(--color-text-muted); border-radius: 6px; font-size: 14px; }
.main-nav__list li ul a:hover { color: var(--color-primary); background: var(--color-bg-alt); }
.main-nav__list li ul li ul { left: 100%; top: 0; }

.main-bar__actions { display: flex; align-items: center; gap: 12px; }
.search-toggle {
	display: inline-flex; align-items: center; justify-content: center;
	width: 38px; height: 38px; background: transparent; border: 1px solid var(--color-border);
	border-radius: var(--radius-sm); color: var(--color-text); cursor: pointer;
}
.search-toggle:hover { color: var(--color-primary); border-color: var(--color-primary); }

.search-panel { display: none; padding: 18px 0 22px; background: var(--color-bg-alt); border-bottom: 1px solid var(--color-border); }
.search-panel.is-open { display: block; }
.search-panel .search-form { display: flex; gap: 10px; }
.search-panel .search-form input[type="search"] {
	flex: 1; padding: 12px 16px; background: var(--color-bg-soft); color: var(--color-text);
	border: 1px solid var(--color-border); border-radius: var(--radius-sm); font-size: 15px;
}
.search-panel .search-form input[type="search"]:focus { outline: none; border-color: var(--color-primary); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--color-text); border-radius: 2px; transition: all .2s; }

/* ---------- Category bar ---------- */
.cat-bar {
	display: block;
	max-height: 0;
	opacity: 0;
	visibility: hidden;
	overflow: hidden;
	transition: max-height .25s ease, opacity .2s ease, visibility .25s;
	background: var(--color-bg-alt);
	border-top: 1px solid var(--color-border);
}
.site-header.is-cat-open .cat-bar { max-height: 80px; opacity: 1; visibility: visible; }
.cat-bar__inner { min-height: 44px; display: flex; align-items: center; }
.products-menu__list { list-style: none; margin: 0; padding: 0; display: flex; gap: 2px; flex-wrap: wrap; }
.products-menu__item { position: relative; }
.products-menu__item > a {
	display: block; padding: 11px 14px; color: var(--color-text-muted);
	font-size: 13px; font-weight: 600; letter-spacing: .2px; border-radius: 6px;
}
.products-menu__item > a:hover { color: var(--color-primary); }
.products-menu__sub {
	list-style: none; margin: 0; padding: 8px; position: absolute; top: 100%; left: 0; min-width: 220px;
	background: var(--color-bg-soft); border: 1px solid var(--color-border); border-radius: var(--radius-sm);
	opacity: 0; visibility: hidden; transform: translateY(8px); transition: all .2s ease; box-shadow: var(--shadow);
	z-index: 90;
}
.products-menu__item:hover > .products-menu__sub { opacity: 1; visibility: visible; transform: translateY(0); }
.products-menu__sub a { display: block; padding: 8px 12px; color: var(--color-text-muted); font-size: 13px; border-radius: 6px; }
.products-menu__sub a:hover { color: var(--color-primary); background: var(--color-bg-alt); }

/* ---------- Language switcher ---------- */
.lang-switch { position: relative; z-index: 120; }
.lang-switch__btn {
	background: transparent; border: 1px solid var(--color-border); color: var(--color-text);
	border-radius: var(--radius-sm); padding: 4px 12px; font-size: 12px; font-weight: 700; cursor: pointer;
}
.lang-switch__btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
.lang-switch__list {
	list-style: none; margin: 0; padding: 6px; position: absolute; top: calc(100% + 6px); right: 0; min-width: 90px;
	background: var(--color-bg-soft); border: 1px solid var(--color-border); border-radius: var(--radius-sm);
	opacity: 0; visibility: hidden; transform: translateY(6px); transition: all .2s; box-shadow: var(--shadow);
}
.lang-switch:hover .lang-switch__list, .lang-switch:focus-within .lang-switch__list { opacity: 1; visibility: visible; transform: translateY(0); }
.lang-switch__list a { display: block; padding: 6px 10px; font-size: 13px; color: var(--color-text-muted); border-radius: 6px; }
.lang-switch__list a:hover, .lang-switch__list .is-current a { color: var(--color-primary); }

/* ---------- Hero ---------- */
.hero {
	position: relative;
	padding: 110px 0 120px;
	background:
		radial-gradient(900px 420px at 80% -10%, rgba(0, 168, 255, .35), transparent 60%),
		radial-gradient(700px 380px at 10% 110%, rgba(255, 107, 53, .18), transparent 60%),
		linear-gradient(160deg, var(--color-bg-soft), var(--color-bg) 70%);
	border-bottom: 1px solid var(--color-border);
	overflow: hidden;
}
.hero__inner { max-width: 760px; }
.hero__title { font-size: clamp(34px, 5vw, 56px); margin-bottom: 18px; }
.hero__sub { font-size: 18px; color: var(--color-text-muted); margin-bottom: 34px; }
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- Sections ---------- */
.section { padding: 70px 0; }
.section--alt { background: var(--color-bg-alt); }
.section__title {
	font-size: 30px; text-align: center; margin-bottom: 40px; position: relative;
}
.section__title::after {
	content: ""; display: block; width: 52px; height: 3px; margin: 14px auto 0;
	background: linear-gradient(90deg, var(--color-primary), var(--color-accent)); border-radius: 3px;
}
.section__more { text-align: center; margin-top: 32px; }

/* ---------- Category grid ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.cat-card {
	display: flex; justify-content: space-between; align-items: center;
	background: var(--color-bg-soft); border: 1px solid var(--color-border);
	border-radius: var(--radius); padding: 20px 22px; transition: all .2s ease;
}
.cat-card:hover { border-color: var(--color-primary); transform: translateY(-3px); box-shadow: var(--shadow); }
.cat-card__name { font-family: var(--font-head); font-weight: 700; font-size: 17px; color: var(--color-white); }
.cat-card__count { font-size: 13px; color: var(--color-primary); background: rgba(0, 168, 255, .12); padding: 3px 10px; border-radius: 20px; }

/* ---------- Product grid / cards ---------- */
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.product-card { background: var(--color-bg-soft); border: 1px solid var(--color-border); border-radius: var(--radius); overflow: hidden; transition: all .25s ease; }
.product-card:hover { transform: translateY(-4px); border-color: var(--color-primary); box-shadow: var(--shadow); }
.product-card__link { display: block; color: inherit; }
.product-card__media { aspect-ratio: 4 / 3; overflow: hidden; background: var(--color-bg-alt); }
.product-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.product-card:hover .product-card__media img { transform: scale(1.05); }
.product-card__placeholder { display: flex; align-items: center; justify-content: center; height: 100%; color: var(--color-text-muted); font-size: 14px; }
.product-card__cat {
	display: inline-block; margin: 14px 0 0 14px; padding: 2px 10px; font-size: 11px; font-weight: 700;
	color: var(--color-primary); background: rgba(0, 168, 255, .12); border-radius: 20px;
}
.product-card__title { font-size: 15px; font-weight: 600; line-height: 1.4; margin: 8px 14px 16px; color: var(--color-text); }

/* ---------- Review cards ---------- */
.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.review-card { background: var(--color-bg-soft); border: 1px solid var(--color-border); border-radius: var(--radius); overflow: hidden; transition: all .25s ease; }
.review-card:hover { transform: translateY(-4px); border-color: var(--color-primary); }
.review-card__link { display: block; color: inherit; }
.review-card__media { aspect-ratio: 16 / 9; overflow: hidden; }
.review-card__media img { width: 100%; height: 100%; object-fit: cover; }
.review-card__title { font-size: 18px; margin: 16px 16px 6px; }
.review-card__excerpt { font-size: 14px; color: var(--color-text-muted); margin: 0 16px 10px; }
.review-card__date { font-size: 12px; color: var(--color-primary); margin: 0 16px 16px; display: block; }

/* ---------- CTA banner ---------- */
.cta-banner {
	background:
		radial-gradient(600px 300px at 20% 50%, rgba(0, 168, 255, .25), transparent 60%),
		linear-gradient(120deg, var(--color-bg-soft), var(--color-bg));
	border-top: 1px solid var(--color-border);
	text-align: center;
}
.cta-banner__title { font-size: 32px; }
.cta-banner__text { color: var(--color-text-muted); margin-bottom: 28px; }

/* ---------- Page head + breadcrumbs ---------- */
.page-head { padding: 46px 0 30px; background: var(--color-bg-soft); border-bottom: 1px solid var(--color-border); }
.page-head__title { font-size: 34px; margin-top: 12px; }
.page-head__desc { color: var(--color-text-muted); }
.page-head__meta { color: var(--color-text-muted); font-size: 14px; }
.breadcrumbs { font-size: 13px; color: var(--color-text-muted); }
.breadcrumbs a { color: var(--color-text-muted); }
.breadcrumbs a:hover { color: var(--color-primary); }
.breadcrumbs__sep { margin: 0 8px; color: var(--color-border); }

/* ---------- Layout ---------- */
.layout { padding: 44px 0 70px; }
.layout--with-sidebar { display: grid; grid-template-columns: 260px 1fr; gap: 40px; align-items: start; }
.sidebar-title { font-size: 16px; text-transform: uppercase; letter-spacing: 1px; color: var(--color-text-muted); margin-bottom: 16px; }

.cat-tree { list-style: none; margin: 0 0 12px; padding: 0; }
.cat-tree__item { margin-bottom: 4px; }
.cat-tree__item > a {
	display: block; padding: 9px 14px; color: var(--color-text-muted); border-radius: var(--radius-sm);
	font-size: 14px; border-left: 3px solid transparent;
}
.cat-tree__item > a:hover { color: var(--color-primary); background: var(--color-bg-soft); }
.cat-tree__item.is-active > a { color: var(--color-primary); background: var(--color-bg-soft); border-left-color: var(--color-primary); font-weight: 700; }
.cat-tree--child { margin: 4px 0 4px 18px; }
.cat-tree--child .cat-tree__item > a { font-size: 13px; padding: 7px 12px; }

/* ---------- Product detail ---------- */
.layout--product { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 48px; }
.product-gallery__main { width: 100%; border-radius: var(--radius); border: 1px solid var(--color-border); }
.product-gallery__placeholder { aspect-ratio: 4 / 3; display: flex; align-items: center; justify-content: center; color: var(--color-text-muted); border: 1px dashed var(--color-border); border-radius: var(--radius); }
.product-gallery__thumbs { display: flex; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.product-gallery__thumb { width: 76px; height: 58px; padding: 0; border: 2px solid var(--color-border); border-radius: var(--radius-sm); overflow: hidden; background: none; cursor: pointer; opacity: .6; transition: all .2s; }
.product-gallery__thumb img { width: 100%; height: 100%; object-fit: cover; }
.product-gallery__thumb:hover { opacity: 1; }
.product-gallery__thumb.is-active { border-color: var(--color-primary); opacity: 1; }

.product-info__title { font-size: 30px; margin-bottom: 10px; }
.product-info__cat { display: inline-block; font-size: 12px; font-weight: 700; color: var(--color-primary); background: rgba(0,168,255,.12); padding: 3px 12px; border-radius: 20px; margin-bottom: 18px; }
.product-info__excerpt { color: var(--color-text-muted); margin-bottom: 22px; }
.product-info__subtitle { font-size: 18px; margin-top: 26px; }

.spec-table { width: 100%; border-collapse: collapse; margin-bottom: 24px; }
.spec-table th, .spec-table td { padding: 10px 14px; text-align: left; font-size: 14px; border-bottom: 1px solid var(--color-border); }
.spec-table th { color: var(--color-text-muted); width: 45%; font-weight: 600; background: var(--color-bg-soft); }
.product-info__cta { margin: 24px 0; }

.layout__content--prose { max-width: 820px; }
.layout__content--prose img { border-radius: var(--radius); }
.layout__content--prose p { color: var(--color-text-muted); }

/* ---------- Post list ---------- */
.post-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.post-card { background: var(--color-bg-soft); border: 1px solid var(--color-border); border-radius: var(--radius); overflow: hidden; transition: all .25s; }
.post-card:hover { border-color: var(--color-primary); transform: translateY(-3px); }
.post-card__link { display: block; color: inherit; }
.post-card__media { aspect-ratio: 16 / 9; overflow: hidden; }
.post-card__media img { width: 100%; height: 100%; object-fit: cover; }
.post-card__title { font-size: 18px; margin: 14px 16px 6px; }
.post-card__meta { font-size: 12px; color: var(--color-primary); margin: 0 16px 8px; }
.post-card__excerpt { font-size: 14px; color: var(--color-text-muted); margin: 0 16px 16px; }
.post-hero { margin-bottom: 28px; }
.post-hero img { border-radius: var(--radius); }

/* ---------- Pagination ---------- */
.pagination { margin-top: 40px; text-align: center; }
.pagination .nav-links { display: inline-flex; gap: 6px; }
.pagination .page-numbers {
	display: inline-flex; align-items: center; justify-content: center; min-width: 40px; height: 40px;
	padding: 0 12px; border: 1px solid var(--color-border); border-radius: var(--radius-sm);
	color: var(--color-text-muted); font-size: 14px;
}
.pagination .page-numbers.current, .pagination .page-numbers:hover { border-color: var(--color-primary); color: var(--color-primary); }

/* ---------- Footer ---------- */
.site-footer { background: var(--color-bg-alt); border-top: 1px solid var(--color-border); }
.site-footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding: 60px 24px; }
.site-footer__name { font-family: var(--font-head); font-size: 22px; font-weight: 700; color: var(--color-white); margin-bottom: 10px; }
.site-footer__desc { color: var(--color-text-muted); font-size: 14px; }
.site-footer__title { font-size: 16px; text-transform: uppercase; letter-spacing: 1px; color: var(--color-white); margin-bottom: 16px; }
.site-footer__menu { list-style: none; margin: 0; padding: 0; }
.site-footer__menu li { margin-bottom: 8px; }
.site-footer__menu a { color: var(--color-text-muted); font-size: 14px; }
.site-footer__menu a:hover { color: var(--color-primary); }
.site-footer__contact li { color: var(--color-text-muted); font-size: 14px; margin-bottom: 8px; }
.social-links { display: flex; gap: 8px; margin-top: 16px; flex-wrap: wrap; }
.social-links__item {
	padding: 6px 12px; font-size: 12px; border: 1px solid var(--color-border); border-radius: 20px;
	color: var(--color-text-muted);
}
.social-links__item:hover { border-color: var(--color-primary); color: var(--color-primary); }
.site-footer__bottom { border-top: 1px solid var(--color-border); padding: 18px 0; text-align: center; }
.site-footer__bottom p { margin: 0; font-size: 13px; color: var(--color-text-muted); }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
	.cat-grid, .product-grid { grid-template-columns: repeat(3, 1fr); }
	.layout--with-sidebar { grid-template-columns: 220px 1fr; gap: 28px; }
	.layout--product { grid-template-columns: 1fr; }
}

@media (max-width: 820px) {
	.nav-toggle { display: flex; }
	.main-nav {
		display: none; position: absolute; top: 100%; left: 0; right: 0;
		background: var(--color-bg-soft); border-top: 1px solid var(--color-border);
		padding: 12px 20px; box-shadow: var(--shadow);
	}
	.main-nav.is-open { display: block; }
	.main-nav__list, .main-nav ul { flex-direction: column; gap: 0; }
	.main-nav__list li ul { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; padding: 0 0 0 14px; min-width: 0; }
	.main-nav__list li ul a { font-size: 14px; }
	.main-bar__inner { gap: 12px; }
	.cat-bar, .site-header.is-cat-open .cat-bar { display: none; }
	.cat-grid, .product-grid, .review-grid, .post-list { grid-template-columns: repeat(2, 1fr); }
	.layout--with-sidebar { grid-template-columns: 1fr; }
	.layout__sidebar { display: none; }
	.site-footer__grid { grid-template-columns: 1fr 1fr; padding: 40px 24px; }
	.hero { padding: 70px 0 80px; }
}

@media (max-width: 520px) {
	.cat-grid, .product-grid, .review-grid, .post-list { grid-template-columns: 1fr; }
	.site-footer__grid { grid-template-columns: 1fr; }
	.top-bar__contact { gap: 10px; }
	.main-bar__inner { flex-wrap: wrap; }
}