/* Techknodyne website — layout and look modelled on navitas-systems.com */

:root {
  --slate: #475f79;
  --slate-700: #3a4e64;
  --slate-900: #26333f;
  --heading: #000;
  --text: #5f6368;
  --muted: #777e90;
  --mist: #f5f5f5;
  --line: #e3e6ea;
  --white: #fff;
  --whatsapp: #25d366;
  --success: #2f7a4d;
  --danger: #b3261e;
  --radius: 6px;
  --shadow: 0 10px 30px rgba(17, 24, 39, .08);
  --header-h: 84px;
  --font: 'Roboto', system-ui, -apple-system, 'Segoe UI', Arial, sans-serif;
  --font-nav: 'Poppins', var(--font);
  --check: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E");
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--white); color: var(--text); font: 400 16px/1.75 var(--font); }
img, video { display: block; max-width: 100%; height: auto; }
a { color: var(--slate); }
h1, h2, h3 { color: var(--heading); font-weight: 600; line-height: 1.25; margin: 0 0 .6em; }
p { margin: 0 0 1em; }
ul { margin: 0; }
svg { width: 1em; height: 1em; flex: none; }
:focus-visible { outline: 3px solid #8fb3d9; outline-offset: 2px; }

.container { width: min(1200px, 100% - 32px); margin-inline: auto; }
.container-narrow { width: min(900px, 100% - 32px); }
.center { text-align: center; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link { position: absolute; left: 16px; top: -60px; z-index: 100; background: var(--white); padding: 10px 16px; border-radius: var(--radius); }
.skip-link:focus { top: 16px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 24px; border: 1px solid transparent; border-radius: 3px;
  font: 500 15px/1.2 var(--font); text-decoration: none; cursor: pointer;
  transition: background-color .2s, color .2s, transform .2s, box-shadow .2s;
}
.btn svg { width: 18px; height: 18px; }
.btn-slate { background: var(--slate); color: var(--white); border-radius: 15px 0 15px 15px; }
.btn-slate:hover { background: var(--slate-900); }
.btn-dark { background: #000; color: var(--white); }
.btn-dark:hover { background: var(--slate); }
.btn-outline { border-color: var(--slate); color: var(--slate); background: transparent; }
.btn-outline:hover { background: var(--slate); color: var(--white); }
.btn-whatsapp { background: var(--whatsapp); color: #063; }
.btn-whatsapp:hover { background: #1fb457; color: var(--white); }
.btn-lg { padding: 18px 32px; font-size: 18px; }
.btn-sm { padding: 10px 22px; font-size: 14px; }
.btn-block { width: 100%; }
.text-link { display: inline-flex; align-items: center; gap: 6px; font-weight: 500; text-decoration: none; }
.text-link:hover { text-decoration: underline; }
.flip { transform: scaleX(-1); }

/* ---------- Header & navigation ---------- */
.site-header {
  position: fixed; inset: 0 0 auto; z-index: 50; height: var(--header-h);
  background: rgba(28, 33, 40, .92); transition: background-color .3s, box-shadow .3s;
}
.home .site-header { background: linear-gradient(rgba(0, 0, 0, .45), transparent); }
.home .site-header.is-scrolled, .site-header.is-scrolled { background: rgba(28, 33, 40, .95); box-shadow: 0 4px 20px rgba(0, 0, 0, .2); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--white); text-decoration: none; }
.brand img { width: 34px; height: auto; }
.site-header .brand img { width: 40px; padding: 4px; border-radius: 8px; background: var(--white); }
.brand span { font: 700 19px/1 var(--font); letter-spacing: 2.5px; }
.brand-dark { color: var(--heading); }

.nav-toggle { display: none; background: none; border: 0; color: var(--white); padding: 8px; cursor: pointer; }
.nav-toggle svg { width: 28px; height: 28px; }
.nav-toggle .i-close { display: none; }

.menu { list-style: none; padding: 0; display: flex; align-items: center; gap: 4px; }
.menu > li { position: relative; display: flex; align-items: center; }
.menu a { font: 400 15px/1 var(--font-nav); color: var(--white); text-decoration: none; }
.menu > li > a { padding: 30px 12px; }
.menu > li > a:hover, .menu > li.is-active > a { color: #c9d6e4; }
.menu > li.is-active > a { box-shadow: inset 0 -3px 0 #c9d6e4; }
.sub-toggle { background: none; border: 0; color: var(--white); padding: 4px; margin-left: -8px; cursor: pointer; }
.sub-toggle svg { width: 14px; height: 14px; transition: transform .2s; }
.sub-menu {
  list-style: none; padding: 8px 0; position: absolute; top: 100%; left: 0; min-width: 260px;
  background: var(--white); border-radius: 0 0 var(--radius) var(--radius); box-shadow: var(--shadow);
  opacity: 0; visibility: hidden; transform: translateY(8px); transition: opacity .2s, transform .2s, visibility .2s;
}
.sub-menu a { display: block; padding: 10px 20px; color: #222; font-size: 14px; line-height: 1.4; }
.sub-menu a:hover, .sub-menu a[aria-current] { background: var(--mist); color: var(--slate); }
.has-sub:hover > .sub-menu, .has-sub:focus-within > .sub-menu, .has-sub.is-open > .sub-menu { opacity: 1; visibility: visible; transform: none; }

@media (max-width: 1100px) {
  .nav-toggle { display: block; position: relative; z-index: 2; }
  .nav-open .nav-toggle .i-open { display: none; }
  .nav-open .nav-toggle .i-close { display: block; }
  .site-nav {
    position: fixed; inset: 0 0 0 auto; width: min(360px, 86vw); padding: calc(var(--header-h) + 8px) 0 24px;
    background: var(--slate-900); overflow-y: auto; transform: translateX(100%); transition: transform .3s;
  }
  .nav-open .site-nav { transform: none; box-shadow: -10px 0 40px rgba(0, 0, 0, .35); }
  .menu { flex-direction: column; align-items: stretch; gap: 0; }
  .menu > li { flex-wrap: wrap; border-bottom: 1px solid rgba(255, 255, 255, .08); }
  .menu > li > a { flex: 1; padding: 16px 24px; }
  .menu > li.is-active > a { box-shadow: inset 3px 0 0 #c9d6e4; }
  .sub-toggle { padding: 14px 24px; margin: 0; }
  .sub-toggle svg { width: 18px; height: 18px; }
  .has-sub.is-open .sub-toggle svg { transform: rotate(180deg); }
  .sub-menu {
    position: static; width: 100%; min-width: 0; display: none; padding: 0 0 8px;
    background: transparent; box-shadow: none; opacity: 1; visibility: visible; transform: none;
  }
  .has-sub:hover > .sub-menu, .has-sub:focus-within > .sub-menu { display: none; }
  .has-sub.is-open > .sub-menu { display: block; }
  .sub-menu a { color: #d5dde6; padding: 10px 24px 10px 40px; }
  .sub-menu a:hover, .sub-menu a[aria-current] { background: rgba(255, 255, 255, .06); color: var(--white); }
}

/* ---------- Banners & hero ---------- */
.banner {
  position: relative; display: flex; align-items: center; min-height: 440px;
  padding: calc(var(--header-h) + 40px) 0 60px; text-align: center; color: var(--white);
  background: var(--slate-900) center / cover no-repeat;
}
.banner::before { content: ''; position: absolute; inset: 0; background: rgba(10, 16, 24, .45); }
.banner .container { position: relative; }
.banner h1, .banner-title { color: var(--white); font-weight: 300; font-size: clamp(2rem, 5vw, 3.4rem); line-height: 1.25; letter-spacing: 2px; margin: 0; }
.banner-eyebrow { text-transform: uppercase; letter-spacing: 2px; font-weight: 500; opacity: .85; margin-bottom: .4em; }
.banner-plain { min-height: 300px; background: linear-gradient(135deg, var(--slate) 0%, var(--slate-900) 100%); }
.banner-plain::before { display: none; }

.hero { position: relative; height: min(100vh, 640px); min-height: 420px; overflow: hidden; background: #0d1620; }
.hero-video { width: 100%; height: 100%; object-fit: cover; }
.hero-divider { position: absolute; left: 0; bottom: -1px; width: 100%; height: 90px; fill: var(--white); }

/* ---------- Sections ---------- */
.section { padding: 80px 0; }
.section-tight { padding: 30px 0 80px; }
.bg-mist { background: var(--mist); }
.section-title { font-size: clamp(2rem, 4vw, 2.6rem); text-align: center; margin-bottom: 44px; }
.section-title-left { text-align: left; font-size: clamp(1.6rem, 3vw, 1.9rem); margin-bottom: 28px; }
.section-lead { max-width: 760px; margin: 0 auto 10px; text-align: center; font-size: 1.25rem; color: #333; line-height: 1.6; }
.eyebrow { color: var(--slate); font-weight: 600; font-size: 1.4rem; text-transform: uppercase; letter-spacing: 1px; margin-bottom: .2em; }
.title-lg { font-size: clamp(1.7rem, 3vw, 1.9rem); }
.title-md { font-size: clamp(1.5rem, 2.6vw, 1.75rem); }
.title-sm { font-size: 1.1rem; margin: 1.4em 0 .6em; }

.intro { padding: 70px 0 80px; }
.intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.intro-media { position: relative; }
.slideshow { position: relative; aspect-ratio: 4 / 5; border-radius: 24px; overflow: hidden; background: var(--mist); }
.slideshow img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; animation: crossfade 12s infinite; }
.slideshow img:nth-child(2) { animation-delay: -6s; }
@keyframes crossfade { 0%, 42% { opacity: 1; } 50%, 92% { opacity: 0; } 100% { opacity: 1; } }
.media-tag {
  position: absolute; left: -16px; bottom: 48px; padding: 14px 40px; border-radius: 10px;
  background: var(--slate); color: var(--white); font-weight: 700; font-size: 1.4rem; letter-spacing: 1px;
  box-shadow: var(--shadow);
}
.media-card {
  position: absolute; right: -16px; bottom: 40px; display: grid; padding: 22px 28px; border-radius: 10px;
  background: var(--white); box-shadow: var(--shadow); text-decoration: none; color: var(--text); min-width: 200px;
}
.media-card strong { color: var(--heading); font-size: 1.25rem; }
.media-card em { display: inline-flex; align-items: center; gap: 6px; font-style: normal; color: var(--slate); font-weight: 500; }
.intro-text .btn { margin-top: 10px; }

.icon-cards { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px; }
.icon-card {
  display: flex; flex-direction: column; align-items: center; text-align: center; gap: 6px;
  padding: 40px 24px; background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow);
  transition: transform .25s, box-shadow .25s;
}
.icon-card:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(17, 24, 39, .12); }
.icon-card svg { width: 44px; height: 44px; color: var(--heading); }
.icon-card h3 { font-size: 1.1rem; margin: 10px 0 16px; min-height: 2.5em; display: flex; align-items: center; }

.band-slate { background: var(--slate); color: var(--white); padding: 70px 0; text-align: center; }
.band-slate p { margin: 0; font-size: clamp(1.15rem, 2.5vw, 1.6rem); font-weight: 300; letter-spacing: .5px; }

.brands { padding: 50px 0; }
.brands-inner { display: flex; align-items: center; gap: 12px; }
.brands-track {
  list-style: none; padding: 10px 0; flex: 1; display: flex; gap: 64px; align-items: center;
  overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none;
}
.brands-track::-webkit-scrollbar { display: none; }
.brands-track li { flex: none; scroll-snap-align: start; }
.brands-track img { height: 56px; width: auto; max-width: 170px; object-fit: contain; }
.brands-nav { flex: none; background: none; border: 0; padding: 8px; color: #333; cursor: pointer; }
.brands-nav svg { width: 26px; height: 26px; }

.cta { position: relative; padding: 110px 0; text-align: center; color: var(--white); background: center / cover no-repeat; }
.cta::before { content: ''; position: absolute; inset: 0; background: rgba(14, 22, 32, .55); }
.cta .container { position: relative; }
.cta-eyebrow { font-size: clamp(1.3rem, 3vw, 1.9rem); font-weight: 600; text-transform: uppercase; letter-spacing: 1px; opacity: .9; margin: 0; }
.cta h2 { color: var(--white); font-size: clamp(2.2rem, 6vw, 3.6rem); margin: 0 0 28px; }

/* ---------- Rich text & lists ---------- */
.rich > :last-child { margin-bottom: 0; }
.rich ul { padding-left: 1.2em; margin: 0 0 1em; }
.rich li { margin-bottom: .45em; }
.lead { font-size: 1.1rem; color: #333; margin-bottom: 1.2em; }
.check-list ul, .check-columns ul { list-style: none; padding: 0; }
.check-list li, .check-columns li { position: relative; padding-left: 36px; margin-bottom: 14px; }
.check-list li::before, .check-columns li::before {
  content: ''; position: absolute; left: 0; top: .3em; width: 22px; height: 22px; border-radius: 50%;
  background: var(--slate) var(--check) center / 12px no-repeat;
}
.check-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 0 48px; }

.gallery { list-style: none; padding: 0; margin: 40px 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.gallery a { display: block; overflow: hidden; border-radius: var(--radius); }
.gallery img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform .4s; }
.gallery a:hover img { transform: scale(1.05); }

/* ---------- Hub cards ---------- */
.service-cards { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }
.service-card {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; height: 100%;
  min-height: 300px; padding: 30px; border-radius: 8px; text-align: center; text-decoration: none; color: var(--white);
  background: linear-gradient(rgba(71, 95, 121, .72), rgba(30, 41, 52, .88)), var(--card-bg, none) center / cover, var(--slate);
  transition: transform .25s, box-shadow .25s;
}
.service-card:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(17, 24, 39, .25); }
.service-card > svg { width: 44px; height: 44px; }
.service-card h2 { color: var(--white); font-weight: 500; font-size: 1.6rem; margin: 0; }
.service-card-link { display: inline-flex; align-items: center; gap: 6px; font-size: 15px; opacity: .85; }

/* ---------- Partners (Sales) ---------- */
.partner + .partner { border-top: 1px solid var(--line); margin-top: 70px; padding-top: 70px; }
.partner-head { display: grid; grid-template-columns: 280px 1fr; gap: 50px; align-items: start; }
.partner-logo { display: grid; place-items: center; padding: 28px; border: 1px solid var(--line); border-radius: 10px; background: var(--white); }
.partner-logo img { max-height: 220px; width: auto; }
.partner-body h2 { font-size: clamp(1.5rem, 3vw, 1.9rem); }
.features { list-style: none; padding: 0; margin-top: 40px; display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.feature { border: 1px solid var(--line); border-radius: 10px; overflow: hidden; background: var(--white); }
.feature img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.feature-body { padding: 22px; }
.feature-body h3 { font-size: 1.2rem; margin-bottom: .4em; }
.feature-body p { font-size: 15px; }
.feature-plain { display: grid; place-items: center; min-height: 140px; background: var(--slate); border: 0; text-align: center; }
.feature-plain h3 { color: var(--white); margin: 0; font-weight: 500; }

/* ---------- Forms ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 20px; }
.field-wide { grid-column: 1 / -1; }
.field label { display: block; font-size: 14px; font-weight: 500; color: #333; margin-bottom: 6px; }
.field input, .field textarea, .search input {
  width: 100%; padding: 12px 14px; border: 1px solid #cfd5dc; border-radius: var(--radius);
  font: inherit; color: #222; background: var(--white);
}
.field input:focus, .field textarea:focus, .search input:focus { outline: none; border-color: var(--slate); box-shadow: 0 0 0 3px rgba(71, 95, 121, .2); }
.field textarea { resize: vertical; min-height: 110px; }
.has-error input, .has-error textarea { border-color: var(--danger); }
.field-error { color: var(--danger); font-size: 13px; margin: 6px 0 0; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.card { background: var(--white); border: 1px solid var(--line); border-radius: 10px; padding: 32px; box-shadow: var(--shadow); }

.modal { border: 0; border-radius: 12px; padding: 0; width: min(640px, 100% - 32px); max-height: calc(100vh - 32px); box-shadow: 0 30px 80px rgba(0, 0, 0, .3); }
.modal::backdrop { background: rgba(10, 16, 24, .6); }
.modal form { padding: 28px; }
.modal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.modal-head h2 { margin: 0; font-size: 1.6rem; }
.modal-close { background: none; border: 0; padding: 6px; cursor: pointer; color: #333; }
.modal-close svg { width: 24px; height: 24px; }
.lightbox { border: 0; padding: 0; background: transparent; max-width: 92vw; max-height: 92vh; }
.lightbox::backdrop { background: rgba(0, 0, 0, .85); }
.lightbox img { max-width: 92vw; max-height: 86vh; border-radius: var(--radius); }
.lightbox .modal-close { position: fixed; top: 16px; right: 16px; color: var(--white); }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.contact-list, .footer-contact { list-style: none; padding: 0; }
.contact-list li, .footer-contact li { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 10px; }
.contact-list svg, .footer-contact svg, .hours svg { width: 18px; height: 18px; color: var(--slate); margin-top: .3em; }
.hours { display: flex; gap: 12px; margin-top: 18px; }
.social { list-style: none; padding: 0; display: flex; gap: 10px; }
.social a { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; background: var(--mist); color: #222; }
.social a:hover { background: var(--slate); color: var(--white); }
.social svg { width: 18px; height: 18px; }
.map iframe { display: block; width: 100%; height: 420px; border: 0; }

/* ---------- Catalogue ---------- */
.search { position: relative; display: flex; gap: 10px; max-width: 760px; margin: 0 auto 24px; }
.search > svg { position: absolute; left: 16px; top: 50%; transform: translateY(-50%); width: 20px; height: 20px; color: var(--muted); }
.search input { padding-left: 46px; font-size: 16px; }
.chips { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-bottom: 40px; }
.chip { padding: 8px 16px; border: 1px solid var(--line); border-radius: 999px; color: #333; text-decoration: none; font-size: 14px; line-height: 1.3; }
.chip:hover { border-color: var(--slate); color: var(--slate); }
.chip.is-active { background: var(--slate); border-color: var(--slate); color: var(--white); }
.result-note { text-align: center; margin: -16px 0 32px; }
.empty { text-align: center; padding: 40px 0; }
.product-grid { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 28px; }
.product-card { display: block; height: 100%; text-decoration: none; color: inherit; }
.product-img {
  display: grid; place-items: center; aspect-ratio: 1; padding: 18px; margin-bottom: 14px;
  border: 1px solid var(--line); border-radius: 8px; background: var(--white); transition: border-color .2s, box-shadow .2s;
}
.product-img img { max-height: 100%; object-fit: contain; transition: transform .3s; }
.product-card:hover .product-img { border-color: var(--slate); box-shadow: var(--shadow); }
.product-card:hover img { transform: scale(1.04); }
.product-cat { display: block; font-size: 12px; text-transform: uppercase; letter-spacing: .6px; color: var(--slate); margin-bottom: 4px; }
.product-card h2, .product-card h3 { font-size: 1rem; font-weight: 500; color: #111; margin: 0; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; font-size: 14px; margin-bottom: 28px; color: var(--muted); }
.breadcrumb a { color: var(--muted); }
.product-detail { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: start; }
.product-photo { display: grid; place-items: center; padding: 30px; border: 1px solid var(--line); border-radius: 10px; background: var(--white); }
.product-info .eyebrow { font-size: 14px; letter-spacing: .8px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.related-title { margin-top: 80px; }

/* ---------- News ---------- */
.post-grid { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 30px; }
.post-card { display: flex; flex-direction: column; border-radius: 10px; overflow: hidden; background: var(--white); box-shadow: var(--shadow); }
.post-img { display: block; aspect-ratio: 16 / 10; background: var(--mist); overflow: hidden; }
.post-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.post-card:hover .post-img img { transform: scale(1.04); }
.post-body { padding: 22px 24px 26px; display: flex; flex-direction: column; flex: 1; }
.post-body time, .post time { font-size: 13px; color: var(--muted); }
.post-body h2 { font-size: 1.15rem; line-height: 1.45; margin: .4em 0 1em; flex: 1; }
.post-body h2 a { color: var(--heading); text-decoration: none; }
.post-body h2 a:hover { color: var(--slate); }
.post-hero { width: 100%; border-radius: 10px; margin: 10px 0 30px; }

/* ---------- Footer ---------- */
.site-footer { padding: 70px 0 30px; border-top: 1px solid var(--line); }
.footer-grid { display: flex; flex-wrap: wrap; gap: 40px; margin-bottom: 50px; }
.footer-grid > * { flex: 1 1 170px; }
.footer-grid > .footer-brand { flex: 1.4 1 240px; }
.footer-brand p { color: var(--muted); margin: 16px 0 20px; max-width: 260px; }
.footer-title { font-size: 1.35rem; margin-bottom: 18px; }
.footer-links { list-style: none; padding: 0; }
.footer-links li { margin-bottom: 8px; }
.footer-links a, .footer-contact a { color: var(--muted); text-decoration: none; font-size: 15px; }
.footer-links a:hover, .footer-contact a:hover { color: var(--slate); }
.footer-contact { font-size: 14px; line-height: 1.6; color: var(--muted); }
.copyright { text-align: center; font-size: 14px; color: var(--muted); margin: 0; padding-top: 26px; border-top: 1px solid var(--line); }

/* ---------- Floating bits ---------- */
.whatsapp-fab {
  position: fixed; right: 20px; bottom: 20px; z-index: 40; display: grid; place-items: center;
  width: 56px; height: 56px; border-radius: 50%; background: var(--whatsapp); color: var(--white);
  box-shadow: 0 8px 24px rgba(0, 0, 0, .25);
}
.whatsapp-fab svg { width: 30px; height: 30px; }
.to-top {
  position: fixed; right: 26px; bottom: 88px; z-index: 40; display: grid; place-items: center;
  width: 44px; height: 44px; border-radius: 50%; background: var(--slate); color: var(--white);
  opacity: 0; visibility: hidden; transition: opacity .3s, visibility .3s;
}
.to-top.is-visible { opacity: 1; visibility: visible; }
.to-top svg { width: 22px; height: 22px; }
.toast-stack { position: fixed; top: calc(var(--header-h) + 16px); left: 50%; transform: translateX(-50%); z-index: 60; width: min(560px, 100% - 32px); }
.toast { margin: 0 0 8px; padding: 14px 20px; border-radius: 8px; background: var(--slate-900); color: var(--white); box-shadow: var(--shadow); transition: opacity .4s; }
.toast-success { background: var(--success); }
.toast-error { background: var(--danger); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .intro-grid, .contact-grid, .product-detail { grid-template-columns: 1fr; gap: 40px; }
  .slideshow { aspect-ratio: 4 / 3; }
  .media-tag { left: 16px; bottom: 20px; font-size: 1.1rem; padding: 10px 24px; }
  .media-card { right: 16px; bottom: 16px; padding: 16px 20px; }
  .partner-head { grid-template-columns: 1fr; gap: 28px; }
  .partner-logo { max-width: 260px; }
  .banner { min-height: 340px; }
}
@media (max-width: 600px) {
  :root { --header-h: 70px; }
  .brand span { font-size: 16px; letter-spacing: 2px; }
  .section { padding: 56px 0; }
  .intro { padding: 40px 0 56px; }
  .form-grid, .check-columns { grid-template-columns: 1fr; }
  .card, .modal form { padding: 22px; }
  .search { flex-direction: column; }
  .search > svg { top: 25px; }
  .cta { padding: 80px 0; }
  .hero-divider { height: 50px; }
  .brands-track { gap: 40px; }
  .brands-track img { height: 44px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .slideshow img:nth-child(2) { display: none; }
}