/* =============================================================
   Intersistem — Design System e layout
   ============================================================= */

/* ---------- Tokens ---------- */
:root {
	--c-primary: #0f3d71;
	--c-primary-dark: #0a294f;
	--c-primary-light: #e7eff8;
	--c-accent: #12884f;
	--c-accent-dark: #0d6b3d;
	--c-ink: #0b1c2e;
	--c-text: #2c3e50;
	--c-muted: #5b6d7f;
	--c-bg: #ffffff;
	--c-bg-alt: #f4f7fb;
	--c-border: #dbe3ec;
	--c-white: #ffffff;
	--c-danger: #b3261e;
	--c-success: #1e8e3e;
	--c-focus: #2563eb;

	--radius: 10px;
	--radius-sm: 6px;
	--shadow-sm: 0 2px 8px rgba(11, 28, 46, .06);
	--shadow: 0 8px 28px rgba(11, 28, 46, .10);
	--container: 1200px;
	--gutter: 20px;

	--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
	--fs-1: 2.1rem;
	--fs-2: 1.55rem;
	--fs-3: 1.25rem;
	--fs-4: 1.05rem;
	--space-1: 8px;
	--space-2: 16px;
	--space-3: 24px;
	--space-4: 40px;
	--space-5: 64px;

	--header-h: 64px;
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { line-height: 1.6; -webkit-text-size-adjust: 100%; }

body {
	margin: 0;
	font-family: var(--font-sans);
	font-size: 16px;
	color: var(--c-text);
	background: var(--c-bg);
	display: flex;
	flex-direction: column;
	min-height: 100vh;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--c-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { color: var(--c-ink); line-height: 1.25; margin: 0 0 .5em; }
p { margin: 0 0 1em; }
ul, ol { margin: 0 0 1em; }

button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }

:focus-visible { outline: 3px solid var(--c-focus); outline-offset: 2px; }

.screen-reader-text {
	position: absolute !important; width: 1px; height: 1px;
	overflow: hidden; clip: rect(1px, 1px, 1px, 1px); clip-path: inset(50%); white-space: nowrap;
}

.skip-link {
	position: absolute; top: -100px; left: var(--space-2); z-index: 999;
	background: var(--c-primary); color: #fff; padding: 10px 16px; border-radius: var(--radius-sm);
}
.skip-link:focus { top: var(--space-2); }

.container {
	max-width: var(--container);
	margin: 0 auto;
	padding-left: var(--gutter);
	padding-right: var(--gutter);
}

.site-main { flex: 1 0 auto; }
.is-section { padding: var(--space-4) 0; }
.is-section--alt { background: var(--c-bg-alt); }
.is-title { font-size: var(--fs-1); }
.is-intro { margin-bottom: var(--space-3); }
.is-prose { max-width: 820px; }
.is-entry { margin-bottom: var(--space-3); }
.is-entry__title { font-size: var(--fs-3); }
.is-entry__excerpt { color: var(--c-muted); }
.is-thumb { margin: 0 0 var(--space-3); }

/* ---------- Utilitários ---------- */
.d-none-lg { display: none; }

/* ---------- Botões ---------- */
.btn {
	display: inline-flex; align-items: center; justify-content: center; gap: 8px;
	min-height: 44px; padding: 10px 20px;
	font-weight: 600; border: 2px solid transparent; border-radius: var(--radius-sm);
	text-decoration: none; cursor: pointer; transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.btn:hover { text-decoration: none; }
.btn:disabled { opacity: .6; cursor: not-allowed; }
.btn--primary { background: var(--c-primary); color: #fff; }
.btn--primary:hover { background: var(--c-primary-dark); }
.btn--accent { background: var(--c-accent); color: #fff; }
.btn--accent:hover { background: var(--c-accent-dark); }
.btn--ghost { background: transparent; border-color: var(--c-primary); color: var(--c-primary); }
.btn--ghost:hover { background: var(--c-primary-light); }
.btn--lg { min-height: 52px; padding: 14px 28px; font-size: 1.02rem; }
.btn--sm { min-height: 38px; padding: 7px 14px; font-size: .92rem; }

/* ---------- Formulários ---------- */
.is-form-field { margin-bottom: var(--space-2); }
.is-form-label { display: block; font-weight: 600; margin-bottom: 6px; color: var(--c-ink); }
.is-form-input {
	width: 100%; min-height: 46px; padding: 10px 14px;
	border: 1px solid var(--c-border); border-radius: var(--radius-sm);
	background: #fff; color: var(--c-text);
}
.is-form-input:focus { border-color: var(--c-primary); box-shadow: 0 0 0 3px rgba(15, 61, 113, .12); outline: none; }
.is-form-input--area { min-height: 0; resize: vertical; }
.is-form-error { border-color: var(--c-danger); }
.is-form-msg { color: var(--c-danger); font-size: .9rem; margin-top: 4px; }

/* ---------- Badges ---------- */
.badge {
	display: inline-block; padding: 3px 10px; font-size: .78rem; font-weight: 600;
	background: var(--c-primary-light); color: var(--c-primary); border-radius: 999px;
}

/* ---------- Header ---------- */
.site-header {
	position: sticky; top: 0; z-index: 50;
	background: var(--c-bg); border-bottom: 1px solid var(--c-border);
}
.site-header__inner { display: flex; align-items: center; gap: var(--space-2); min-height: var(--header-h); }
.site-header__brand { flex: 0 0 auto; }
.site-header__logo { font-size: 1.3rem; font-weight: 800; color: var(--c-ink); letter-spacing: .2px; }
.site-header__brand img.custom-logo { max-height: 48px; width: auto; }

.site-nav { display: none; flex: 1 1 auto; }
.site-nav .menu { display: flex; gap: 4px; list-style: none; margin: 0; padding: 0; flex-wrap: wrap; }
.site-nav a {
	display: block; padding: 10px 14px; color: var(--c-ink); font-weight: 600;
	border-radius: var(--radius-sm);
}
.site-nav a:hover { background: var(--c-primary-light); text-decoration: none; }
.site-nav .current-menu-item > a { color: var(--c-primary); }
.site-nav .menu-item-has-children { position: relative; }
.site-nav .sub-menu { display: none; position: absolute; top: 100%; left: 0; min-width: 230px; background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius-sm); box-shadow: var(--shadow-sm); list-style: none; padding: 6px; }
.site-nav .menu-item-has-children:hover .sub-menu,
.site-nav .menu-item-has-children:focus-within .sub-menu { display: block; }
.site-nav.is-open { display: block; }

.site-header__actions { display: flex; align-items: center; gap: var(--space-1); margin-left: auto; }
.site-header__icon {
	display: inline-flex; align-items: center; justify-content: center;
	width: 44px; height: 44px; border: 0; background: transparent; color: var(--c-ink); border-radius: var(--radius-sm);
}
.site-header__icon:hover { background: var(--c-primary-light); }

.site-header__quote {
	display: inline-flex; align-items: center; gap: 8px; padding: 10px 12px;
	color: var(--c-ink); font-weight: 600; border-radius: var(--radius-sm);
}
.site-header__quote:hover { background: var(--c-primary-light); text-decoration: none; }
.site-header__quote-label { display: none; }
.site-header__quote-count {
	display: inline-flex; align-items: center; justify-content: center;
	min-width: 22px; height: 22px; padding: 0 6px; font-size: .8rem; font-weight: 700;
	background: var(--c-accent); color: #fff; border-radius: 999px;
}

.site-search { border-top: 1px solid var(--c-border); background: var(--c-bg-alt); padding: var(--space-2) 0 var(--space-1); }
.site-search[hidden] { display: none; }

.search-box { display: flex; gap: var(--space-1); }
.search-box__input {
	flex: 1 1 auto; min-width: 0; min-height: 46px; padding: 10px 14px;
	border: 2px solid var(--c-border); border-radius: var(--radius-sm); background: #fff;
}
.search-box__input:focus { border-color: var(--c-primary); outline: none; }
.search-box--hero { max-width: 640px; }
.search-box--hero .search-box__input { min-height: 56px; }

.search-suggest {
	display: none; position: absolute; max-width: 640px; width: calc(100% - 40px);
	background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius-sm);
	box-shadow: var(--shadow); z-index: 40; overflow: hidden;
}
.search-suggest.is-open { display: block; }

/* ---------- Hero ---------- */
.hero {
	background: linear-gradient(135deg, var(--c-primary-dark) 0%, var(--c-primary) 60%, #1a5aa8 100%);
	color: #fff; padding: calc(var(--space-5) + 20px) 0 var(--space-5);
}
.hero__inner { position: relative; }
.hero__title { color: #fff; font-size: clamp(1.9rem, 5vw, 3rem); max-width: 720px; margin-bottom: .4em; }
.hero__subtitle { font-size: 1.15rem; max-width: 560px; opacity: .92; margin-bottom: var(--space-3); }
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-top: var(--space-4); }
.hero .btn--ghost { border-color: #fff; color: #fff; }
.hero .btn--ghost:hover { background: rgba(255, 255, 255, .12); }

/* ---------- Seções ---------- */
.is-section__title { font-size: var(--fs-2); margin-bottom: var(--space-3); }

.grid { display: grid; gap: var(--space-2); grid-template-columns: repeat(2, 1fr); }
.grid--4 { grid-template-columns: repeat(2, 1fr); }

/* ---------- Categoria card ---------- */
.category-card {
	display: flex; flex-direction: column; gap: 4px; padding: var(--space-3);
	background: var(--c-bg); border: 1px solid var(--c-border); border-radius: var(--radius);
	transition: box-shadow .15s ease, transform .15s ease;
}
.category-card:hover { box-shadow: var(--shadow-sm); transform: translateY(-2px); text-decoration: none; }
.category-card__name { font-weight: 700; color: var(--c-ink); font-size: var(--fs-4); }
.category-card__count { color: var(--c-muted); font-size: .9rem; }

/* ---------- Cards de produto ---------- */
.product-card {
	display: flex; flex-direction: column; overflow: hidden;
	background: var(--c-bg); border: 1px solid var(--c-border); border-radius: var(--radius);
	transition: box-shadow .15s ease;
}
.product-card:hover { box-shadow: var(--shadow-sm); }
.product-card__thumb {
	aspect-ratio: 4 / 3; overflow: hidden; background: var(--c-primary-light);
	display: flex; align-items: center; justify-content: center;
}
.product-card__thumb img { width: 100%; height: 100%; object-fit: cover; }
.product-card__placeholder { color: var(--c-muted); padding: var(--space-2); text-align: center; }
.product-card__body { display: flex; flex-direction: column; gap: 6px; padding: var(--space-2); flex: 1; }
.product-card__title { font-size: var(--fs-4); margin: 0; }
.product-card__title a { color: var(--c-ink); }
.product-card__code { font-size: .85rem; color: var(--c-muted); margin: 0; }
.product-card__desc { font-size: .95rem; color: var(--c-muted); margin: 0; }
.product-card__actions { display: flex; flex-direction: column; gap: 8px; margin-top: auto; padding-top: var(--space-2); }
.product-card .btn { width: 100%; }

/* ---------- Página do produto ---------- */
.product-single__grid { display: grid; gap: var(--space-3); grid-template-columns: 1fr; }
.product-gallery__main { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--c-border); }
.product-gallery__image { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.product-gallery__thumbs { display: flex; gap: 8px; margin-top: 8px; flex-wrap: wrap; }
.product-gallery__thumb { width: 70px; height: 52px; padding: 0; border: 2px solid var(--c-border); border-radius: var(--radius-sm); overflow: hidden; background: none; }
.product-gallery__thumb.is-active { border-color: var(--c-primary); }
.product-gallery__thumb img { width: 100%; height: 100%; object-fit: cover; }

.product-single__title { font-size: var(--fs-1); margin-bottom: .2em; }
.product-single__code { color: var(--c-muted); margin-bottom: var(--space-2); }
.product-single__curta { font-size: 1.05rem; margin-bottom: var(--space-3); }
.product-single__cta { display: flex; flex-direction: column; gap: var(--space-1); }
.product-single__content { margin-top: var(--space-4); }
.product-single__content img { border-radius: var(--radius); }

.product-block { margin-top: var(--space-4); }
.product-block__title { font-size: var(--fs-3); border-bottom: 2px solid var(--c-border); padding-bottom: var(--space-1); margin-bottom: var(--space-2); }

.checklist { list-style: none; padding: 0; margin: 0; }
.checklist li { padding-left: 26px; position: relative; margin-bottom: 8px; }
.checklist li::before {
	content: "✓"; position: absolute; left: 0; top: 0; color: var(--c-accent); font-weight: 800;
}

.specs-table { width: 100%; border-collapse: collapse; }
.specs-table th, .specs-table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--c-border); }
.specs-table th { width: 40%; color: var(--c-ink); font-weight: 600; background: var(--c-bg-alt); }

.doc-list { list-style: none; padding: 0; }
.doc-list li { margin-bottom: 8px; }
.doc-list a::before { content: "📄 "; }

.responsive-embed { position: relative; overflow: hidden; padding-top: 56.25%; border-radius: var(--radius); }
.responsive-embed iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* ---------- Catálogo ---------- */
.catalog-tools { display: flex; flex-direction: column; gap: var(--space-2); margin-bottom: var(--space-3); }
.catalog-tools__filters { display: flex; flex-wrap: wrap; gap: var(--space-1); }
.catalog-tools__filters select { min-height: 42px; padding: 8px 12px; border: 1px solid var(--c-border); border-radius: var(--radius-sm); background: #fff; }
.is-catalog-grid { margin-bottom: var(--space-3); }

.pagination { display: flex; justify-content: center; }
.pagination .page-numbers {
	display: inline-flex; align-items: center; justify-content: center;
	min-width: 40px; height: 40px; padding: 0 10px; margin: 0 3px;
	border: 1px solid var(--c-border); border-radius: var(--radius-sm); color: var(--c-ink);
}
.pagination .page-numbers.current { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }

/* ---------- Orçamento ---------- */
.quote-page { display: grid; gap: var(--space-4); grid-template-columns: 1fr; }
.quote-item {
	display: grid; grid-template-columns: 64px 1fr auto; gap: var(--space-2);
	align-items: center; padding: var(--space-2); border: 1px solid var(--c-border); border-radius: var(--radius);
	margin-bottom: var(--space-2); background: var(--c-bg);
}
.quote-item__thumb { width: 64px; height: 48px; object-fit: cover; border-radius: var(--radius-sm); background: var(--c-primary-light); }
.quote-item__name { font-weight: 600; color: var(--c-ink); }
.quote-item__code { font-size: .85rem; color: var(--c-muted); }
.quote-item__tools { display: flex; align-items: center; gap: 8px; }
.quote-item__qty { width: 70px; min-height: 38px; padding: 6px; border: 1px solid var(--c-border); border-radius: var(--radius-sm); }
.quote-item__remove { background: none; border: 0; color: var(--c-danger); font-size: 1.2rem; padding: 6px; }

.quote-form { background: var(--c-bg-alt); border-radius: var(--radius); padding: var(--space-3); }
.quote-form__title { font-size: var(--fs-3); }
.quote-form__grid { display: grid; gap: var(--space-2); grid-template-columns: 1fr; }
.quote-form__actions { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-top: var(--space-2); }
.quote-form__status { min-height: 1.4em; font-weight: 600; }
.quote-form__status.is-success { color: var(--c-success); }
.quote-form__status.is-error { color: var(--c-danger); }

/* ---------- Contato ---------- */
.contact-grid { display: grid; gap: var(--space-4); grid-template-columns: 1fr; max-width: 920px; }
.contact-form { background: var(--c-bg-alt); border-radius: var(--radius); padding: var(--space-3); }
.contact-info__list { list-style: none; padding: 0; margin: 0; }
.contact-info__list li { margin-bottom: var(--space-2); }

/* ---------- Estado vazio / avisos ---------- */
.empty-state { text-align: center; padding: var(--space-5) var(--space-2); border: 1px dashed var(--c-border); border-radius: var(--radius); }
.empty-state__title { font-size: var(--fs-3); }
.empty-state__actions { display: flex; gap: var(--space-2); justify-content: center; flex-wrap: wrap; }
.notice { padding: var(--space-2); border-radius: var(--radius-sm); margin: var(--space-2) 0; }
.notice--warning { background: #fff8e6; border: 1px solid #eec94d; color: #6b5210; }

/* ---------- Etapas ---------- */
.step-card { text-align: center; padding: var(--space-3); background: var(--c-bg); border: 1px solid var(--c-border); border-radius: var(--radius); }
.step-card__num {
	width: 44px; height: 44px; margin: 0 auto var(--space-1);
	display: flex; align-items: center; justify-content: center;
	background: var(--c-primary); color: #fff; font-size: 1.2rem; border-radius: 50%;
}

/* ---------- Footer ---------- */
.site-footer { background: var(--c-primary-dark); color: #c9d7ea; margin-top: var(--space-5); }
.site-footer a { color: #dbe7f5; }
.site-footer a:hover { color: #fff; }
.site-footer__cta { text-align: center; padding: var(--space-5) 0 var(--space-4); border-bottom: 1px solid rgba(255, 255, 255, .12); }
.site-footer__cta-title { color: #fff; }
.site-footer__cta-actions { display: flex; gap: var(--space-2); justify-content: center; flex-wrap: wrap; }
.site-footer__cta .btn--ghost { border-color: #fff; color: #fff; }
.site-footer__cta .btn--ghost:hover { background: rgba(255, 255, 255, .12); }

.site-footer__grid { display: grid; gap: var(--space-4); grid-template-columns: 1fr; padding: var(--space-4) 0; }
.site-footer__title { color: #fff; font-size: 1rem; margin-bottom: var(--space-2); }
.site-footer__col ul { list-style: none; margin: 0; padding: 0; }
.site-footer__col li { margin-bottom: 8px; }
.site-footer__contact { overflow-wrap: anywhere; }

.site-footer__legal { border-top: 1px solid rgba(255, 255, 255, .12); padding: var(--space-2) 0 var(--space-3); display: flex; flex-wrap: wrap; gap: var(--space-2); justify-content: space-between; align-items: center; font-size: .9rem; }
.site-footer__legal p { margin: 0; }
.site-footer__legal a { text-decoration: underline; }

/* ---------- Botões flutuantes ---------- */
.floating-whatsapp {
	position: fixed; right: var(--space-2); bottom: var(--space-2); z-index: 90;
	width: 56px; height: 56px; display: flex; align-items: center; justify-content: center;
	background: var(--c-accent); color: #fff; border-radius: 50%; box-shadow: var(--shadow);
	transition: transform .15s ease;
}
.floating-whatsapp:hover { transform: scale(1.06); background: var(--c-accent-dark); }

.floating-quote {
	position: fixed; left: var(--space-2); bottom: var(--space-2); z-index: 90;
	display: inline-flex; align-items: center; gap: 8px;
	background: var(--c-primary); color: #fff; border: 0; padding: 12px 18px; border-radius: 999px; box-shadow: var(--shadow);
}
.floating-quote[hidden] { display: none; }
.floating-quote__count {
	display: inline-flex; align-items: center; justify-content: center;
	min-width: 22px; height: 22px; padding: 0 6px; font-size: .8rem; font-weight: 700;
	background: #fff; color: var(--c-primary); border-radius: 999px;
}

/* ---------- Toast padrão (feedback) ---------- */
.toast {
	position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%); z-index: 100;
	background: var(--c-ink); color: #fff; padding: 12px 20px; border-radius: var(--radius-sm); box-shadow: var(--shadow);
	opacity: 0; transition: opacity .25s ease; pointer-events: none;
}
.toast.is-show { opacity: 1; }

/* =============================================================
   Responsivo
   ============================================================= */
@media (min-width: 640px) {
	.grid--4 { grid-template-columns: repeat(3, 1fr); }
	.quote-form__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
	:root { --gutter: 28px; }
	.site-header__quote-label { display: inline; }
	.site-nav { display: flex; }
	.site-header__icon.js-menu-toggle { display: none; }
	.d-none-lg { display: inline-flex; }
	.product-single__grid { grid-template-columns: 1fr 1fr; }
	.product-single__cta { flex-direction: column; }
	.quote-page { grid-template-columns: 1fr 1fr; }
	.site-footer__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
	.grid--4 { grid-template-columns: repeat(4, 1fr); }
	.site-footer__grid { grid-template-columns: 1.4fr 1fr 1fr 1.2fr; }
}

@media (max-width: 767px) {
	.site-nav {
		position: absolute; top: var(--header-h); left: 0; right: 0;
		background: #fff; border-bottom: 1px solid var(--c-border); padding: var(--space-2);
		box-shadow: var(--shadow-sm);
	}
	.site-nav .menu { flex-direction: column; }
	.site-nav .sub-menu { position: static; box-shadow: none; display: block; padding-left: var(--space-2); border: 0; }
	.hero { padding-top: var(--space-4); }
	.category-card, .product-card { --radius: 8px; }
}