:root {
  --ink: #101614;
  --muted: #66736d;
  --line: #dfe5e1;
  --panel: #f4f7f5;
  --paper: #ffffff;
  --deep: #0b2119;
  --green: #155f3c;
  --green-2: #1f7a4a;
  --gold: #b99a54;
  --shadow: 0 28px 80px rgba(12, 22, 18, .16);
  --soft-shadow: 0 16px 46px rgba(12, 22, 18, .09);
  --lift-shadow: 0 24px 64px rgba(9, 18, 15, .13);
  --fine-line: rgba(16, 22, 20, .08);
  --radius: 8px;
  --max: 1180px;
  --header: 88px;
  color-scheme: light;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.5;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.menu-open { overflow: hidden; }

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

a {
  color: inherit;
  text-decoration: none;
}

button, input, select, textarea {
  font: inherit;
}

.container {
  width: min(100% - 32px, var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(255,255,255,.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(223,229,225,.62);
  transition: box-shadow .28s ease, background .28s ease, border-color .28s ease, backdrop-filter .28s ease;
}

.site-header.is-scrolled {
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(22px) saturate(1.08);
  -webkit-backdrop-filter: blur(22px) saturate(1.08);
  border-color: rgba(204,214,208,.78);
  box-shadow: 0 14px 42px rgba(16,22,20,.10);
}

.header-inner {
  min-height: var(--header);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 224px;
  padding: 8px 0;
}

.brand img {
  width: 214px;
  height: auto;
  image-rendering: auto;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px;
  border: 1px solid rgba(223,229,225,.58);
  border-radius: 999px;
  background: rgba(255,255,255,.48);
}

.main-nav a {
  position: relative;
  padding: 10px 15px;
  border-radius: 999px;
  color: #314139;
  font-size: 14px;
  font-weight: 650;
  transition: background .22s ease, color .22s ease, box-shadow .22s ease, transform .22s ease;
}

.main-nav a:hover,
.main-nav a.is-active {
  background: #f0f6f2;
  color: var(--green);
  box-shadow: inset 0 0 0 1px rgba(21,95,60,.08);
  transform: translateY(-1px);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 999px;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--ink);
  transition: transform .2s ease, opacity .2s ease;
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 760;
  letter-spacing: 0;
  transition: transform .22s ease, box-shadow .22s ease, background .22s ease, border-color .22s ease, color .22s ease;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background:
    linear-gradient(180deg, rgba(255,255,255,.08), transparent),
    var(--green);
  color: #fff;
  box-shadow: 0 16px 34px rgba(21,95,60,.22), inset 0 1px 0 rgba(255,255,255,.16);
}

.btn-primary:hover {
  background:
    linear-gradient(180deg, rgba(255,255,255,.08), transparent),
    var(--deep);
  box-shadow: 0 20px 44px rgba(11,33,25,.28), inset 0 1px 0 rgba(255,255,255,.14);
}

.btn-secondary {
  background: #fff;
  color: var(--deep);
  border-color: rgba(255,255,255,.5);
}

.btn-outline, .btn-ghost {
  background: #fff;
  border-color: var(--line);
  color: var(--deep);
}

.btn-ghost:hover,
.btn-outline:hover {
  border-color: var(--green);
  color: var(--green);
  box-shadow: var(--soft-shadow);
}

.btn-small {
  min-height: 40px;
  padding: 0 14px;
  font-size: 14px;
}

.hero {
  position: relative;
  min-height: calc(100svh - var(--header));
  display: grid;
  align-items: end;
  padding: 110px 0 34px;
  overflow: hidden;
  isolation: isolate;
  background-color: #07130f;
  background-image:
    radial-gradient(circle at 70% 18%, rgba(255,255,255,.14), transparent 22%),
    radial-gradient(circle at 78% 56%, rgba(185,154,84,.20), transparent 30%),
    linear-gradient(90deg, rgba(4,10,8,.98) 0%, rgba(4,10,8,.91) 33%, rgba(4,10,8,.54) 58%, rgba(4,10,8,.18) 100%),
    linear-gradient(180deg, rgba(5,13,10,.06) 0%, rgba(5,13,10,.18) 44%, rgba(5,13,10,.88) 100%),
    url("../img/hero/hero.webp"),
    linear-gradient(135deg, #05110d 0%, #0b1d16 48%, #050b09 100%);
  background-position:
    center,
    center,
    center,
    center,
    right center,
    center;
  background-size:
    auto,
    auto,
    auto,
    auto,
    min(100vw, 1717px) auto,
    cover;
  background-repeat: no-repeat;
  color: #fff;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(circle at 71% 42%, rgba(255,255,255,.10), transparent 21%),
    linear-gradient(90deg, rgba(5,13,10,.64), transparent 48%),
    linear-gradient(180deg, rgba(255,255,255,.06), transparent 26%);
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(112deg, transparent 0 48%, rgba(185,154,84,.13) 48.1%, transparent 48.28%),
    linear-gradient(112deg, transparent 0 77%, rgba(255,255,255,.07) 77.1%, transparent 77.24%),
    linear-gradient(rgba(255,255,255,.032) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.026) 1px, transparent 1px);
  background-size: auto, auto, 92px 92px, 92px 92px;
  mask-image: linear-gradient(90deg, rgba(0,0,0,.82), rgba(0,0,0,.30) 55%, transparent 96%);
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero .container::before {
  content: "";
  position: absolute;
  left: 0;
  top: -24px;
  width: 92px;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), transparent);
}

.hero .container::after {
  content: "CATÁLOGO B2B";
  position: absolute;
  right: 0;
  bottom: 116px;
  color: rgba(255,255,255,.42);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: .24em;
  writing-mode: vertical-rl;
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(820px, 100%);
  padding: 34px 36px 110px 0;
}

.hero-content::before {
  content: "";
  position: absolute;
  inset: -48px -52px 38px -44px;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(4,11,8,.94), rgba(4,11,8,.80) 62%, rgba(4,11,8,.20) 92%, transparent),
    radial-gradient(circle at 18% 12%, rgba(185,154,84,.20), transparent 28%);
  border-left: 1px solid rgba(185,154,84,.30);
  box-shadow: 0 34px 100px rgba(0,0,0,.34);
}

.eyebrow {
  display: inline-flex;
  color: var(--gold);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: .12em;
  text-transform: uppercase;
}

h1, h2, h3, p {
  margin-top: 0;
}

h1 {
  margin-bottom: 18px;
  font-size: clamp(42px, 7vw, 84px);
  line-height: .98;
  letter-spacing: 0;
}

.hero-mobile-break {
  display: none;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.04;
}

h3 {
  margin-bottom: 8px;
  font-size: 20px;
  line-height: 1.16;
}

.lead {
  color: #dce7df;
  font-size: clamp(18px, 2.2vw, 23px);
  max-width: 720px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hero-strip {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.20);
  box-shadow: 0 24px 70px rgba(0,0,0,.22);
}

.hero-strip div {
  padding: 20px;
  background: linear-gradient(180deg, rgba(255,255,255,.12), rgba(255,255,255,.055));
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.hero-strip strong {
  display: block;
  font-size: 22px;
}

.hero-strip span {
  color: #d2ded7;
  font-size: 13px;
}

.section {
  padding: 92px 0;
}

.section.compact {
  padding-top: 58px;
}

.section-muted {
  background:
    linear-gradient(180deg, rgba(255,255,255,.38), transparent 38%),
    var(--panel);
}

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 24px;
  margin-bottom: 34px;
}

.section-heading p {
  color: var(--muted);
  max-width: 560px;
  margin-bottom: 0;
}

.search-panel {
  position: relative;
  z-index: 4;
  margin-top: -48px;
}

.search-box {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  padding: 14px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.search-box input,
.field input,
.field select,
.field textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  padding: 15px 16px;
  color: var(--ink);
  outline: none;
  transition: border-color .2s ease, box-shadow .2s ease;
}

.search-box input {
  min-height: 56px;
  border-color: transparent;
  background: var(--panel);
  font-size: 17px;
}

.search-box input:focus,
.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: rgba(21,95,60,.45);
  box-shadow: 0 0 0 4px rgba(21,95,60,.09);
}

.category-grid,
.product-grid,
.applications-grid,
.difference-grid,
.stats-grid {
  display: grid;
  gap: 18px;
}

.category-grid {
  grid-template-columns: repeat(3, 1fr);
}

.category-card {
  position: relative;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  justify-content: end;
  overflow: hidden;
  padding: 22px;
  color: #fff;
  background: var(--deep);
  border-radius: var(--radius);
  box-shadow: var(--soft-shadow);
  border: 1px solid rgba(255,255,255,.08);
  transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}

.category-card:hover {
  transform: translateY(-7px);
  box-shadow: 0 32px 80px rgba(7,18,13,.22);
  border-color: rgba(185,154,84,.34);
}

.category-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .68;
  transition: transform .45s ease, opacity .25s ease;
}

.category-card:hover img {
  transform: scale(1.06);
  opacity: .52;
}

.category-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(5,15,11,.18), rgba(5,15,11,.42) 42%, rgba(5,15,11,.94)),
    linear-gradient(90deg, rgba(5,15,11,.82), rgba(5,15,11,.32) 58%, rgba(5,15,11,.16));
  transition: opacity .28s ease;
}

.category-card::before {
  content: "";
  position: absolute;
  inset: 14px;
  z-index: 1;
  border: 1px solid rgba(255,255,255,.13);
  opacity: .0;
  transform: scale(.985);
  transition: opacity .28s ease, transform .28s ease;
  pointer-events: none;
}

.category-card:hover::before {
  opacity: 1;
  transform: scale(1);
}

.category-card-featured {
  background:
    radial-gradient(circle at 84% 10%, rgba(185,154,84,.18), transparent 34%),
    var(--deep);
}

.category-card-featured img {
  opacity: .62;
  filter: saturate(.92) contrast(1.08);
}

.category-card-featured::after {
  background:
    linear-gradient(180deg, rgba(5,15,11,.10), rgba(5,15,11,.48) 42%, rgba(5,15,11,.96)),
    linear-gradient(90deg, rgba(5,15,11,.86), rgba(5,15,11,.38) 60%, rgba(185,154,84,.12));
}

.category-card span,
.category-card p {
  position: relative;
  z-index: 1;
}

.category-card span {
  font-size: 25px;
  font-weight: 820;
  text-shadow: 0 2px 18px rgba(0,0,0,.44);
}

.category-card p {
  margin: 8px 0 0;
  color: #f0f7f2;
  text-shadow: 0 2px 18px rgba(0,0,0,.70);
}

.product-grid {
  grid-template-columns: repeat(3, 1fr);
}

.product-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 1px 0 rgba(16,22,20,.03);
  transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

.product-card:hover {
  transform: translateY(-9px);
  box-shadow: 0 34px 90px rgba(12,22,18,.17);
  border-color: rgba(21,95,60,.28);
}

.product-media {
  position: relative;
  display: block;
  aspect-ratio: 1 / .96;
  overflow: hidden;
  background: linear-gradient(135deg, #eef3ef, #ffffff);
}

.product-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, transparent 54%, rgba(6,18,13,.10)),
    radial-gradient(circle at 76% 16%, rgba(255,255,255,.28), transparent 22%);
  opacity: .55;
  pointer-events: none;
  transition: opacity .28s ease;
}

.product-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .45s ease;
}

.product-card:hover .product-media img {
  transform: scale(1.075);
}

.product-card:hover .product-media::after {
  opacity: .78;
}

.media-fallback {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    linear-gradient(135deg, rgba(11,33,25,.96), rgba(21,95,60,.86)),
    linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px);
  background-size: auto, 36px 36px;
  color: #fff;
  font-weight: 820;
  text-align: center;
  opacity: 0;
}

.has-image-error .media-fallback,
.product-media:not(:has(img)) .media-fallback {
  opacity: 1;
}

.product-body {
  padding: 22px;
  border-top: 1px solid rgba(223,229,225,.74);
  display: flex;
  flex: 1;
  flex-direction: column;
}

.product-body p {
  min-height: 48px;
  color: var(--muted);
  margin-bottom: 16px;
}

.product-body h3 {
  min-height: 48px;
  color: var(--deep);
}

.product-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.product-body .btn {
  width: fit-content;
  margin-top: auto;
}

.product-meta span,
.active-filters span,
.pill {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  background: #eef4f0;
  color: #345044;
  font-size: 12px;
  font-weight: 720;
}

.split {
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 54px;
  align-items: center;
}

.image-stack {
  position: relative;
}

.image-stack img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.quote-card {
  position: absolute;
  right: -18px;
  bottom: -22px;
  width: min(330px, 82%);
  padding: 22px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--soft-shadow);
  border-radius: var(--radius);
}

.quote-card strong {
  display: block;
  margin-bottom: 8px;
  color: var(--green);
}

.difference-grid {
  grid-template-columns: repeat(3, 1fr);
}

.difference-card,
.application-card,
.stat-card,
.contact-card {
  position: relative;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 1px 0 rgba(16,22,20,.03);
  transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease, background .28s ease;
}

.difference-card::before,
.application-card::before,
.stat-card::before,
.contact-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-top: 2px solid rgba(185,154,84,.45);
  border-radius: inherit;
  opacity: 0;
  transition: opacity .28s ease;
  pointer-events: none;
}

.difference-card:hover,
.application-card:hover,
.stat-card:hover,
.contact-card:hover {
  transform: translateY(-5px);
  border-color: rgba(21,95,60,.22);
  box-shadow: var(--lift-shadow);
  background: linear-gradient(180deg, #fff, #fbfdfc);
}

.difference-card:hover::before,
.application-card:hover::before,
.stat-card:hover::before,
.contact-card:hover::before {
  opacity: 1;
}

.difference-card strong,
.application-card strong,
.stat-card strong {
  display: block;
  margin-bottom: 8px;
  font-size: 20px;
}

.difference-card p,
.application-card p,
.stat-card p,
.contact-card p {
  margin-bottom: 0;
  color: var(--muted);
}

.applications-grid {
  grid-template-columns: repeat(4, 1fr);
}

.cta-band {
  color: #fff;
  background: var(--deep);
  padding: 58px 0;
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.cta-inner p {
  color: #cfdbd4;
  max-width: 620px;
  margin: 0;
}

.page-hero {
  position: relative;
  overflow: hidden;
  padding: 72px 0 48px;
  background:
    radial-gradient(circle at 82% 4%, rgba(185,154,84,.16), transparent 28%),
    linear-gradient(115deg, rgba(11,33,25,.08), transparent 42%),
    linear-gradient(180deg, #f7faf8, #fff);
  border-bottom: 1px solid var(--line);
}

.page-hero::before,
.page-hero::after {
  content: "";
  position: absolute;
  pointer-events: none;
}

.page-hero::before {
  inset: 0;
  background-image:
    linear-gradient(rgba(16,22,20,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16,22,20,.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(90deg, rgba(0,0,0,.48), transparent 82%);
}

.page-hero::after {
  right: max(24px, calc((100vw - var(--max)) / 2));
  bottom: -56px;
  width: 260px;
  height: 260px;
  border: 1px solid rgba(21,95,60,.12);
  transform: rotate(18deg);
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.page-hero h1 {
  max-width: 900px;
  color: var(--deep);
}

.page-hero p {
  max-width: 760px;
  color: var(--muted);
  font-size: 19px;
}

.catalog-section {
  background:
    linear-gradient(180deg, #fff 0%, #f7faf8 42%, #fff 100%);
}

.catalog-search-panel {
  display: grid;
  grid-template-columns: minmax(250px, .62fr) minmax(520px, 1.48fr) auto;
  gap: 20px;
  align-items: center;
  margin-bottom: 28px;
  padding: 24px;
  border: 1px solid rgba(223,229,225,.92);
  border-radius: calc(var(--radius) + 4px);
  background:
    radial-gradient(circle at 94% 0%, rgba(185,154,84,.12), transparent 28%),
    linear-gradient(180deg, #fff, #fbfdfc);
  box-shadow: 0 24px 70px rgba(12,22,18,.10);
}

.catalog-search-panel h2 {
  margin-bottom: 0;
  font-size: clamp(24px, 3vw, 36px);
}

.catalog-search-shell {
  position: relative;
  display: grid;
  align-items: center;
}

.catalog-search-shell input {
  width: 100%;
  min-height: 66px;
  padding: 18px 102px 18px 54px;
  border: 1px solid rgba(204,214,208,.92);
  border-radius: calc(var(--radius) + 2px);
  background: #fff;
  color: var(--ink);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.82);
  font-size: 16px;
  outline: none;
  transition: border-color .22s ease, box-shadow .22s ease, background .22s ease;
}

.catalog-search-shell input:focus {
  border-color: rgba(21,95,60,.52);
  box-shadow: 0 0 0 5px rgba(21,95,60,.10), 0 18px 44px rgba(12,22,18,.08);
}

.search-icon {
  position: absolute;
  left: 19px;
  z-index: 1;
  width: 20px;
  height: 20px;
  border: 2px solid var(--green);
  border-radius: 999px;
  opacity: .86;
  pointer-events: none;
}

.search-icon::after {
  content: "";
  position: absolute;
  right: -7px;
  bottom: -5px;
  width: 9px;
  height: 2px;
  background: var(--green);
  transform: rotate(45deg);
  transform-origin: left center;
}

.search-clear,
.inline-clear,
.filter-close {
  border: 0;
  background: transparent;
  color: var(--green);
  font-weight: 800;
  cursor: pointer;
}

.search-clear {
  position: absolute;
  right: 12px;
  min-height: 42px;
  padding: 0 14px;
  border: 1px solid rgba(21,95,60,.16);
  border-radius: 999px;
  background: #f4f8f5;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease, transform .2s ease, background .2s ease;
}

.search-clear.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.search-clear:hover,
.inline-clear:hover {
  background: #eaf3ee;
}

.inline-clear:disabled,
.filter-clear:disabled {
  opacity: .46;
  cursor: not-allowed;
}

.catalog-search-meta {
  display: grid;
  justify-items: end;
  gap: 8px;
  min-width: 160px;
}

.catalog-tools {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: center;
  margin-bottom: 22px;
}

.catalog-tools .search-box {
  margin: 0;
  box-shadow: 0 18px 54px rgba(12,22,18,.08);
}

.filter-toggle {
  display: none;
}

.catalog-mobile-actions {
  display: none;
}

.catalog-layout {
  display: grid;
  grid-template-columns: 292px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.filter-panel {
  position: sticky;
  top: calc(var(--header) + 22px);
  display: grid;
  gap: 14px;
  padding: 20px;
  border: 1px solid rgba(223,229,225,.94);
  border-radius: calc(var(--radius) + 4px);
  background:
    linear-gradient(180deg, #fff, #fbfdfc);
  box-shadow: 0 18px 54px rgba(12,22,18,.08);
  overflow: hidden;
  transition: max-height .3s ease, opacity .3s ease;
}

.filter-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.filter-heading strong {
  display: block;
  margin-top: 4px;
  color: var(--deep);
  font-size: 20px;
}

.filter-close {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 999px;
  background: var(--panel);
  color: var(--deep);
  font-size: 28px;
  line-height: 1;
}

.filter-panel .field select {
  min-height: 52px;
  color: #2b3d34;
  background:
    linear-gradient(180deg, #fff, #fbfdfc);
}

.filter-clear {
  width: 100%;
  margin-top: 2px;
}

.filter-overlay {
  display: none;
}

.active-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-height: 30px;
  margin-bottom: 24px;
}

.active-filters span {
  gap: 8px;
  border: 1px solid rgba(21,95,60,.12);
  background: #f4f8f5;
}

.active-filters button {
  display: inline-grid;
  place-items: center;
  width: 20px;
  height: 20px;
  border: 0;
  border-radius: 999px;
  background: rgba(21,95,60,.10);
  color: var(--green);
  cursor: pointer;
  font-weight: 900;
  line-height: 1;
  transition: background .2s ease, color .2s ease;
}

.active-filters button:hover {
  background: var(--green);
  color: #fff;
}

.result-count {
  color: var(--deep);
  font-weight: 850;
}

.catalog-results-heading {
  margin-bottom: 24px;
}

.catalog-empty {
  display: grid;
  justify-items: start;
  gap: 10px;
  padding: 46px;
  background:
    radial-gradient(circle at 94% 0%, rgba(185,154,84,.12), transparent 30%),
    linear-gradient(180deg, #fff, #f7faf8);
  box-shadow: 0 16px 46px rgba(12,22,18,.08);
}

.catalog-empty h3,
.catalog-empty p {
  margin-bottom: 0;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 34px 0 22px;
  color: var(--muted);
  font-size: 14px;
}

.breadcrumb a {
  color: var(--green);
}

.breadcrumb > *:not(:last-child)::after {
  content: "/";
  margin-left: 8px;
  color: #aab5af;
}

.product-detail-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 48px;
  align-items: start;
}

.gallery-main {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--lift-shadow);
}

.gallery-main img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  transition: transform .35s ease, opacity .15s ease;
}

.gallery-main:hover img {
  transform: scale(1.035);
}

.gallery-main img.is-swapping {
  opacity: .35;
}

.gallery-thumbs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 12px;
}

.gallery-thumbs button {
  padding: 0;
  border: 2px solid transparent;
  border-radius: var(--radius);
  background: var(--panel);
  cursor: pointer;
  overflow: hidden;
  box-shadow: 0 1px 0 rgba(16,22,20,.04);
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.gallery-thumbs button.is-active {
  border-color: var(--green);
  box-shadow: 0 10px 24px rgba(21,95,60,.12);
}

.gallery-thumbs button:hover {
  transform: translateY(-2px);
  border-color: rgba(21,95,60,.42);
}

.gallery-thumbs img {
  width: 100%;
  aspect-ratio: 1 / .74;
  object-fit: cover;
}

.product-info {
  position: sticky;
  top: calc(var(--header) + 24px);
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--lift-shadow);
}

.product-info h1 {
  margin-top: 8px;
  color: var(--deep);
}

.product-info .lead {
  color: var(--muted);
  font-size: 18px;
}

.spec-highlight {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 24px 0;
}

.spec-highlight span {
  padding: 14px 16px;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, #fff, #f5faf7);
  border-radius: var(--radius);
  font-weight: 720;
  min-width: 0;
  overflow-wrap: anywhere;
}

.spec-table {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 1px 0 rgba(16,22,20,.03);
}

.spec-table div {
  display: grid;
  grid-template-columns: 220px 1fr;
  border-bottom: 1px solid var(--line);
}

.spec-table div:last-child {
  border-bottom: 0;
}

.spec-table strong,
.spec-table span {
  padding: 16px 18px;
}

.spec-table strong {
  background: var(--panel);
}

.stats-grid {
  grid-template-columns: repeat(4, 1fr);
}

.stat-card strong {
  color: var(--green);
  font-size: 34px;
}

.contact-layout {
  display: grid;
  grid-template-columns: .92fr 1.08fr;
  gap: 28px;
  align-items: start;
}

.contact-card {
  display: grid;
  gap: 18px;
}

.contact-line {
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.contact-line strong {
  display: block;
  margin-bottom: 4px;
}

.whatsapp-box {
  padding: 22px;
  background: var(--deep);
  color: #fff;
  border-radius: var(--radius);
}

.whatsapp-box p {
  color: #d8e5de;
  margin-bottom: 16px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.field-full {
  grid-column: 1 / -1;
}

.field label {
  display: block;
  margin-bottom: 7px;
  color: #33443b;
  font-size: 13px;
  font-weight: 760;
}

.field textarea {
  min-height: 150px;
  resize: vertical;
}

.site-footer {
  position: relative;
  overflow: hidden;
  padding: 68px 0 30px;
  background:
    radial-gradient(circle at 16% 0%, rgba(185,154,84,.18), transparent 30%),
    radial-gradient(circle at 88% 34%, rgba(31,122,74,.18), transparent 32%),
    linear-gradient(145deg, #061711, #0b231a 58%, #07130f);
  color: #fff;
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: .36;
  pointer-events: none;
}

.site-footer .container {
  position: relative;
  z-index: 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 28px;
  padding-bottom: 34px;
  border-bottom: 1px solid rgba(255,255,255,.12);
}

.footer-grid img {
  width: 166px;
  margin-bottom: 18px;
}

.footer-grid p,
.footer-bottom {
  color: #bdcbc4;
}

.footer-grid a {
  display: block;
  color: #dce7df;
  margin: 8px 0;
  transition: color .2s ease, transform .2s ease;
}

.footer-grid a:hover {
  color: #fff;
  transform: translateX(3px);
}

.footer-grid h3 {
  font-size: 15px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: #f3e7c8;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-top: 24px;
  font-size: 14px;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .55s ease var(--delay, 0ms), transform .55s ease var(--delay, 0ms);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

.hero [data-reveal] {
  opacity: 1;
  transform: none;
}

.empty-state {
  grid-column: 1 / -1;
  padding: 42px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.load-more {
  display: flex;
  width: fit-content;
  margin: 28px auto 0;
}

@media (max-width: 980px) {
  :root { --header: 76px; }

  .menu-toggle { display: inline-block; }

  .main-nav {
    position: fixed;
    inset: var(--header) 0 auto;
    display: grid;
    gap: 0;
    padding: 14px 16px 24px;
    background: rgba(255,255,255,.98);
    border-bottom: 1px solid var(--line);
    border-radius: 0;
    box-shadow: var(--shadow);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform .25s ease, opacity .25s ease;
  }

  .main-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .main-nav a {
    border-radius: var(--radius);
    padding: 14px 12px;
  }

  .header-actions .btn {
    display: none;
  }

  .hero {
    min-height: 720px;
    padding-top: 92px;
  }

  .hero-content {
    padding-bottom: 72px;
    width: min(720px, 100%);
  }

  .hero-strip,
  .category-grid,
  .product-grid,
  .difference-grid,
  .applications-grid,
  .stats-grid,
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .split,
  .product-detail-grid,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .product-info {
    position: static;
  }

  .spec-highlight {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .filter-toggle {
    display: inline-flex;
  }

  .catalog-search-panel {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .catalog-search-meta {
    justify-items: start;
  }

  .catalog-mobile-actions {
    display: flex;
    justify-content: flex-end;
    margin: -10px 0 22px;
  }

  .catalog-layout {
    grid-template-columns: 1fr;
  }

  .filter-overlay {
    position: fixed;
    inset: 0;
    z-index: 45;
    display: block;
    background: rgba(5,13,10,.48);
    opacity: 0;
    pointer-events: none;
    transition: opacity .25s ease;
  }

  body.filters-open .filter-overlay {
    opacity: 1;
    pointer-events: auto;
  }

  .filter-panel {
    position: fixed;
    inset: auto 14px 14px;
    top: auto;
    z-index: 46;
    max-height: min(82svh, 720px);
    overflow: auto;
    transform: translateY(112%);
    opacity: 0;
    pointer-events: none;
    transition: transform .28s ease, opacity .28s ease;
  }

  .filter-panel.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .filter-close {
    display: inline-grid;
    place-items: center;
  }
}

@media (max-width: 680px) {
  .container {
    width: min(100% - 24px, var(--max));
  }

  .brand img {
    width: 158px;
  }

  .brand {
    min-width: 160px;
  }

  .header-inner {
    gap: 12px;
  }

  .hero {
    min-height: 720px;
    align-items: end;
    padding-top: 96px;
    background-position:
      center,
      center,
      center,
      center 72px,
      center 72px,
      center;
    background-size:
      auto,
      auto,
      auto,
      auto,
      min(180vw, 780px) auto,
      cover;
  }

  .hero::before {
    background:
      linear-gradient(180deg, rgba(5,13,10,.44) 0%, rgba(5,13,10,.90) 46%, rgba(5,13,10,.98) 100%),
      linear-gradient(90deg, rgba(5,13,10,.92), rgba(5,13,10,.34));
  }

  .hero::after {
    mask-image: linear-gradient(180deg, transparent 0%, rgba(0,0,0,.70) 34%, rgba(0,0,0,.96) 100%);
  }

  .hero .container::after {
    display: none;
  }

  .hero-content {
    padding: 282px 0 34px;
  }

  .hero h1 {
    max-width: 360px;
    font-size: clamp(36px, 9.8vw, 41px);
    line-height: 1.02;
  }

  .hero .lead {
    font-size: 18px;
    line-height: 1.55;
  }

  .hero-mobile-break {
    display: block;
  }

  .hero-content::before {
    inset: 206px -20px 0 -20px;
    background:
      linear-gradient(180deg, transparent, rgba(4,11,8,.82) 16%, rgba(4,11,8,.96)),
      radial-gradient(circle at 18% 42%, rgba(185,154,84,.14), transparent 28%);
    border-left: 0;
  }

  .hero-strip,
  .category-grid,
  .product-grid,
  .difference-grid,
  .applications-grid,
  .stats-grid,
  .footer-grid,
  .form-grid,
  .catalog-tools,
  .search-box {
    grid-template-columns: 1fr;
  }

  .catalog-search-panel {
    padding: 18px;
  }

  .catalog-search-shell input {
    min-height: 62px;
    padding: 16px 88px 16px 50px;
  }

  .search-clear {
    right: 9px;
    padding: 0 11px;
  }

  .section {
    padding: 64px 0;
  }

  .section-heading,
  .cta-inner,
  .footer-bottom {
    display: block;
  }

  .section-heading .btn,
  .cta-inner .btn {
    margin-top: 18px;
  }

  .category-card {
    min-height: 230px;
  }

  .quote-card {
    position: static;
    width: 100%;
    margin-top: 12px;
  }

  .spec-highlight {
    grid-template-columns: 1fr;
  }

  .spec-table div {
    grid-template-columns: 1fr;
  }

  .gallery-thumbs {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}