:root {
  --primary: #0a4d9e;
  --primary-2: #08376f;
  --aqua: #00b8d9;
  --green: #25d366;
  --dark: #111827;
  --muted: #64748b;
  --line: #e2e8f0;
  --bg: #f8fafc;
  --white: #ffffff;
  --shadow: 0 18px 50px rgba(15, 23, 42, 0.12);
  --radius: 8px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, sans-serif;
  color: var(--dark);
  background: var(--bg);
}

body.dark-mode {
  --bg: #07111f;
  --white: #0f1b2d;
  --dark: #f8fafc;
  --muted: #a6b2c3;
  --line: #243449;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
}

h1, h2, h3, h4, h5, h6 {
  font-family: "Poppins", system-ui, sans-serif;
  font-weight: 700;
  letter-spacing: 0;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 12px;
  z-index: 9999;
  background: var(--dark);
  color: var(--white);
  padding: 10px 14px;
}

.skip-link:focus { left: 12px; }

.navbar {
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(226, 232, 240, 0.85);
  backdrop-filter: blur(18px);
}

.dark-mode .navbar {
  background: rgba(15, 27, 45, 0.92);
}

.brand-logo {
  width: 162px;
  max-height: 58px;
  object-fit: contain;
}

.nav-link {
  font-weight: 700;
  color: var(--dark);
}

.nav-link:hover,
.nav-link.active { color: var(--primary); }

.btn {
  font-family: "Montserrat", system-ui, sans-serif;
  font-weight: 800;
  border-radius: var(--radius);
}

.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
}

.btn-primary:hover {
  background: var(--primary-2);
  border-color: var(--primary-2);
}

.btn-aqua {
  color: #fff;
  background: var(--aqua);
  border-color: var(--aqua);
}

.icon-btn {
  inline-size: 42px;
  block-size: 42px;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--dark);
  border-radius: var(--radius);
}

.section {
  padding: 86px 0;
}

.section-sm {
  padding: 56px 0;
}

.eyebrow {
  color: var(--primary);
  font-weight: 900;
  text-transform: uppercase;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
}

.lead-muted {
  color: var(--muted);
  font-size: 1.075rem;
}

.hero {
  min-height: 92vh;
  padding-top: 105px;
  background:
    linear-gradient(90deg, rgba(248, 250, 252, 0.98) 0%, rgba(248, 250, 252, 0.9) 46%, rgba(248, 250, 252, 0.28) 100%),
    url("../images/banner-4.png") center right / cover no-repeat;
  display: flex;
  align-items: center;
}

.dark-mode .hero {
  background:
    linear-gradient(90deg, rgba(7, 17, 31, 0.98) 0%, rgba(7, 17, 31, 0.88) 48%, rgba(7, 17, 31, 0.2) 100%),
    url("../images/banner-4.png") center right / cover no-repeat;
}

.hero h1 {
  font-size: clamp(2.35rem, 6vw, 5.15rem);
  line-height: 1;
  max-width: 800px;
}

.hero-copy {
  max-width: 650px;
}

.hero-badges,
.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.pill {
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 10px 14px;
  font-weight: 800;
  color: var(--dark);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
}

.dark-mode .pill {
  background: rgba(15, 27, 45, 0.85);
}

.product-card,
.feature-card,
.review-card,
.blog-card,
.info-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 8px 26px rgba(15, 23, 42, 0.06);
}

.product-card {
  overflow: hidden;
  transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
}

.product-media {
  aspect-ratio: 4 / 3;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #f8fbff, #e7f8fc);
  overflow: hidden;
}

.dark-mode .product-media {
  background: linear-gradient(135deg, #132137, #0d3444);
}

.product-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.price {
  color: var(--primary);
  font-weight: 900;
}

.rating {
  color: #f59e0b;
  letter-spacing: 0;
}

.feature-card {
  padding: 28px;
  height: 100%;
}

.feature-icon {
  inline-size: 52px;
  block-size: 52px;
  border-radius: var(--radius);
  display: grid;
  place-items: center;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--aqua));
  margin-bottom: 18px;
}

.counter-band {
  background: linear-gradient(135deg, var(--primary), #062e62);
  color: #fff;
}

.counter {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 900;
  font-family: "Poppins", system-ui, sans-serif;
}

.before-after {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  min-height: 360px;
  background: var(--white);
  border: 1px solid var(--line);
}

.before-after .pane {
  min-height: 360px;
  display: grid;
  align-content: end;
  padding: 28px;
  color: #fff;
  background-size: cover;
  background-position: center;
}

.before-pane {
  background-image: linear-gradient(rgba(17, 24, 39, 0.42), rgba(17, 24, 39, 0.7)), url("../images/banner-4.png");
  filter: saturate(0.7);
}

.after-pane {
  background-image: linear-gradient(rgba(10, 77, 158, 0.18), rgba(10, 77, 158, 0.68)), url("../images/banner-4.png");
}

.swiper {
  padding-bottom: 48px;
}

.review-card {
  padding: 28px;
  min-height: 255px;
}

.gallery-tile {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--white);
  cursor: pointer;
}

.gallery-tile img {
  width: 100%;
  height: 100%;
  min-height: 230px;
  object-fit: cover;
  transition: transform 0.28s ease;
}

.gallery-tile:hover img {
  transform: scale(1.045);
}

.newsletter {
  background: linear-gradient(135deg, #e8f7ff, #f8fafc);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.dark-mode .newsletter {
  background: linear-gradient(135deg, #0d2a42, #07111f);
}

.page-hero {
  padding: 150px 0 70px;
  background:
    linear-gradient(90deg, rgba(248, 250, 252, 0.98), rgba(248, 250, 252, 0.74)),
    url("../images/banner-4.png") center right / cover no-repeat;
}

.dark-mode .page-hero {
  background:
    linear-gradient(90deg, rgba(7, 17, 31, 0.98), rgba(7, 17, 31, 0.72)),
    url("../images/banner-4.png") center right / cover no-repeat;
}

.breadcrumb-item + .breadcrumb-item::before {
  color: var(--muted);
}

.filter-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.cart-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: min(420px, 100%);
  height: 100vh;
  background: var(--white);
  border-left: 1px solid var(--line);
  box-shadow: var(--shadow);
  z-index: 1055;
  transform: translateX(105%);
  transition: transform 0.25s ease;
  padding: 22px;
}

.cart-drawer.open {
  transform: translateX(0);
}

.floating-contact {
  position: fixed;
  right: 18px;
  bottom: 92px;
  z-index: 1040;
  display: grid;
  gap: 10px;
}

.floating-contact a,
.back-to-top {
  inline-size: 46px;
  block-size: 46px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  color: #fff;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.24);
}

.whatsapp { background: var(--green); }
.phone { background: var(--primary); }
.email { background: var(--aqua); }

.back-to-top {
  position: fixed;
  right: 18px;
  bottom: 28px;
  border: 0;
  background: var(--dark);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  z-index: 1040;
}

.back-to-top.show {
  opacity: 1;
  pointer-events: auto;
}

.footer {
  background: #061833;
  color: #dbeafe;
}

.footer a:hover { color: #fff; }

.footer-logo {
  width: 180px;
  background: #fff;
  border-radius: var(--radius);
  padding: 8px;
}

.loader {
  position: fixed;
  inset: 0;
  background: var(--white);
  z-index: 9999;
  display: grid;
  place-items: center;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.loader.hide {
  opacity: 0;
  visibility: hidden;
}

.spinner {
  inline-size: 46px;
  block-size: 46px;
  border: 4px solid var(--line);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.cookie-notice {
  position: fixed;
  left: 18px;
  bottom: 18px;
  width: min(390px, calc(100% - 36px));
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  z-index: 1060;
}

.cookie-notice.hide { display: none; }

.form-control,
.form-select {
  border-radius: var(--radius);
  border-color: var(--line);
  min-height: 48px;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--aqua);
  box-shadow: 0 0 0 0.2rem rgba(0, 184, 217, 0.18);
}

.accordion-button {
  font-weight: 800;
}

.comparison-table th {
  background: rgba(10, 77, 158, 0.08);
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.86);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 22px;
}

.lightbox.open { display: flex; }
.lightbox img { max-height: 88vh; border-radius: var(--radius); }

.visually-hidden-focusable:not(:focus):not(:focus-within) {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}