:root {
  --bg: #101113;
  --bg-soft: #17191d;
  --surface: #ffffff;
  --surface-soft: #f4f5f7;
  --text: #15171b;
  --muted: #666d78;
  --muted-dark: #c9cdd4;
  --line: #e5e7ec;
  --red: #d8121b;
  --red-dark: #9f0d14;
  --amber: #f6a11a;
  --green: #25d366;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.18);
  --radius: 8px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--surface);
  font-family: Inter, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

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

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

button,
input,
textarea {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
  width: min(100% - 40px, var(--max));
  min-height: 74px;
  margin: 14px auto -88px;
  padding: 0 18px;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(12, 13, 15, 0.78);
  backdrop-filter: blur(18px);
  box-shadow: 0 16px 50px rgba(0, 0, 0, 0.24);
}

.site-header.is-scrolled {
  background: rgba(12, 13, 15, 0.94);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 23px;
  font-weight: 900;
  letter-spacing: 0;
  white-space: nowrap;
}

.brand-mark {
  position: relative;
  width: 18px;
  height: 24px;
}

.brand-mark::before {
  content: "";
  position: absolute;
  inset: 2px 4px 0;
  border-radius: 12px 12px 12px 4px;
  background: linear-gradient(145deg, #ff3a32, var(--red-dark));
  transform: rotate(38deg);
}

.brand-mark::after {
  content: "";
  position: absolute;
  right: 2px;
  bottom: 0;
  width: 8px;
  height: 13px;
  border-radius: 10px 10px 10px 3px;
  background: #fff;
  transform: rotate(33deg);
}

.site-nav {
  display: flex;
  justify-content: center;
  gap: 28px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
  font-weight: 700;
}

.site-nav a {
  transition: color 180ms ease;
}

.site-nav a:hover {
  color: #fff;
}

.header-cta,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 0;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 800;
  line-height: 1;
  cursor: pointer;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease, border-color 180ms ease;
}

.header-cta {
  color: #06140b;
  background: var(--green);
}

.btn:hover,
.header-cta:hover {
  transform: translateY(-1px);
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, #f1242e, var(--red-dark));
  box-shadow: 0 18px 42px rgba(216, 18, 27, 0.28);
}

.btn-secondary {
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.24);
  background: rgba(255, 255, 255, 0.08);
}

.btn-dark {
  color: #fff;
  background: var(--bg);
}

.btn-whatsapp {
  color: #06140b;
  background: var(--green);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: #fff;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.96fr) minmax(430px, 1.04fr);
  gap: 32px;
  align-items: center;
  min-height: 760px;
  padding: 154px max(28px, calc((100vw - var(--max)) / 2)) 72px;
  overflow: hidden;
  color: #fff;
  background:
    radial-gradient(circle at 72% 46%, rgba(216, 18, 27, 0.42), transparent 28%),
    linear-gradient(130deg, #111215 0%, #15171c 46%, #070708 100%);
}

.hero::before {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 190px;
  background: linear-gradient(0deg, rgba(0, 0, 0, 0.34), transparent);
  pointer-events: none;
}

.hero-copy,
.hero-media {
  position: relative;
  z-index: 1;
}

.hero h1 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(42px, 5.2vw, 82px);
  line-height: 0.98;
  font-weight: 900;
  letter-spacing: 0;
}

.hero p {
  max-width: 640px;
  margin: 26px 0 0;
  color: var(--muted-dark);
  font-size: 19px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  max-width: 620px;
  margin-top: 46px;
}

.hero-stats div {
  padding: 18px 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}

.hero-stats strong {
  display: block;
  color: #fff;
  font-size: 28px;
  line-height: 1;
}

.hero-stats span {
  display: block;
  margin-top: 8px;
  color: var(--muted-dark);
  font-size: 13px;
  font-weight: 700;
}

.hero-media {
  min-width: 0;
}

.hero-media img {
  width: 100%;
  aspect-ratio: 1.16 / 1;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: 0 34px 120px rgba(0, 0, 0, 0.5);
}

.home-hero {
  grid-template-columns: minmax(0, 0.92fr) minmax(460px, 1.08fr);
  min-height: 680px;
  padding-top: 140px;
  padding-bottom: 52px;
  color: var(--text);
  background: #fff;
}

.home-hero h1 {
  max-width: 680px;
  color: var(--text);
}

.home-hero p {
  color: #3f4652;
}

.home-hero .btn-secondary {
  color: var(--text);
  border-color: #cfd4dc;
  background: #fff;
}

.home-hero .hero-stats div {
  border-top-color: #dfe3ea;
}

.home-hero .hero-stats strong {
  color: var(--text);
}

.home-hero .hero-stats span {
  color: var(--muted);
}

.hero-product-stage {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  min-height: 470px;
  overflow: visible;
  isolation: isolate;
}

.product-glow {
  position: absolute;
  display: none;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}

.product-glow-red {
  width: 420px;
  height: 420px;
  right: 6%;
  top: 6%;
  background: radial-gradient(circle, rgba(216, 18, 27, 0.18), transparent 66%);
  animation: glowPulse 5.8s ease-in-out infinite;
}

.product-glow-soft {
  width: 300px;
  height: 300px;
  left: 10%;
  bottom: 6%;
  background: radial-gradient(circle, rgba(246, 161, 26, 0.12), transparent 68%);
  animation: glowPulse 6.8s ease-in-out infinite reverse;
}

.hero-cutout {
  position: relative;
  display: block;
  width: auto;
  aspect-ratio: auto;
  max-width: none;
  border-radius: 0;
  object-fit: contain;
  filter: none;
  box-shadow: none;
  will-change: transform;
  z-index: 1;
}

.hero-product-stage .hero-cutout {
  aspect-ratio: auto;
  border-radius: 0;
  box-shadow: none;
  background: transparent;
}

.hero-cutout-arac {
  left: auto;
  bottom: auto;
  height: min(330px, 38vw);
  animation: productFloatA 5.4s ease-in-out infinite;
  z-index: 2;
}

.hero-cutout-pano {
  right: auto;
  bottom: auto;
  height: min(340px, 39vw);
  animation: productFloatB 6.1s ease-in-out infinite;
  z-index: 1;
}

@keyframes productFloatA {
  0%,
  100% {
    transform: translate3d(0, 0, 0) rotate(-1deg);
  }
  50% {
    transform: translate3d(-8px, -16px, 0) rotate(1.2deg);
  }
}

@keyframes productFloatB {
  0%,
  100% {
    transform: translate3d(0, 0, 0) rotate(1deg);
  }
  50% {
    transform: translate3d(10px, -20px, 0) rotate(-0.8deg);
  }
}

@keyframes glowPulse {
  0%,
  100% {
    opacity: 0.62;
    transform: scale(0.96);
  }
  50% {
    opacity: 1;
    transform: scale(1.06);
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-cutout,
  .product-glow {
    animation: none;
  }
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
}

.trust-strip span {
  display: flex;
  align-items: center;
  min-height: 92px;
  padding: 22px;
  background: #fff;
  color: #343941;
  font-size: 14px;
  font-weight: 800;
}

.home-products-section {
  position: relative;
  width: 100%;
  max-width: none;
  padding: 82px max(28px, calc((100vw - var(--max)) / 2)) 96px;
  background:
    linear-gradient(180deg, #fff 0%, #f6f7f9 100%);
}

.home-products-section::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: var(--line);
}

.home-products-section .section-heading {
  margin-bottom: 32px;
}

.home-products-section .section-heading h2 {
  color: #111318;
}

.home-products-section .section-heading p {
  max-width: 660px;
  margin-right: auto;
  margin-left: auto;
}

.home-product-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.home-product-card {
  display: grid;
  grid-template-rows: 230px 1fr;
  overflow: hidden;
  border: 1px solid #dde1e8;
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 24px 70px rgba(18, 22, 30, 0.08);
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
}

.home-product-card:hover {
  transform: translateY(-4px);
  border-color: rgba(216, 18, 27, 0.22);
  box-shadow: 0 30px 84px rgba(18, 22, 30, 0.13);
}

.home-product-image {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 230px;
  padding: 24px 32px 18px;
  isolation: isolate;
  background:
    radial-gradient(circle at 50% 78%, rgba(216, 18, 27, 0.14), transparent 38%),
    linear-gradient(180deg, #fafbfc, #eef1f5);
}

.home-product-image::after {
  content: "";
  position: absolute;
  right: 17%;
  bottom: 28px;
  left: 17%;
  z-index: -1;
  height: 20px;
  border-radius: 999px;
  background: rgba(17, 19, 24, 0.18);
  filter: blur(16px);
}

.home-product-image img {
  width: 100%;
  height: 190px;
  object-fit: contain;
  transform: translateY(4px);
  transition: transform 0.28s ease;
}

.home-product-card:hover .home-product-image img {
  transform: translateY(-4px) scale(1.03);
}

.home-product-body {
  display: flex;
  flex-direction: column;
  padding: 24px 28px 28px;
}

.home-product-kicker {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.home-product-kicker span,
.home-product-kicker em {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 5px 9px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 900;
  line-height: 1;
  text-transform: uppercase;
  font-style: normal;
}

.home-product-kicker span {
  color: var(--red);
  background: rgba(216, 18, 27, 0.08);
}

.home-product-kicker em {
  color: #333943;
  background: #f1f3f6;
}

.home-product-body h3 {
  max-width: 410px;
  margin: 14px 0 0;
  color: #090b10;
  font-size: 29px;
  line-height: 1.04;
  font-weight: 900;
}

.home-product-body p {
  max-width: 440px;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.48;
}

.home-product-features {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
  color: #343943;
  font-size: 12px;
  font-weight: 750;
  list-style: none;
}

.home-product-features li {
  position: relative;
  padding: 8px 10px 8px 24px;
  border: 1px solid #e7eaf0;
  border-radius: 999px;
  background: #fafbfc;
  line-height: 1.2;
}

.home-product-features li::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 10px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--red);
  transform: translateY(-50%);
  box-shadow: 0 0 0 4px rgba(216, 18, 27, 0.1);
}

.home-product-price-row {
  margin-top: 18px;
  padding-top: 0;
}

.home-product-price-row span {
  display: block;
  margin-bottom: 5px;
  color: #7a828e;
  font-size: 12px;
  font-weight: 900;
  line-height: 1;
  text-transform: uppercase;
}

.home-product-price-row strong {
  display: block;
  color: var(--red);
  font-size: 34px;
  line-height: 1;
  font-weight: 900;
}

.home-product-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.home-product-actions .btn {
  min-height: 46px;
}

.home-process {
  padding: 106px max(28px, calc((100vw - var(--max)) / 2));
  color: #fff;
  background:
    radial-gradient(circle at 82% 22%, rgba(216, 18, 27, 0.28), transparent 26%),
    linear-gradient(135deg, #101113, #1c2028);
}

.home-process-inner {
  display: grid;
  grid-template-columns: 0.84fr 1.16fr;
  gap: 50px;
  align-items: start;
}

.home-process .section-heading p {
  color: var(--muted-dark);
}

.process-steps {
  display: grid;
  gap: 14px;
}

.process-steps div {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 16px 22px;
  align-items: start;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.055);
}

.process-steps span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  color: #fff;
  border-radius: 50%;
  background: var(--red);
  font-weight: 900;
}

.process-steps h3 {
  margin: 0;
  font-size: 22px;
  line-height: 1.18;
  font-weight: 900;
}

.process-steps p {
  grid-column: 2;
  margin: -6px 0 0;
  color: var(--muted-dark);
}

.home-use-cases {
  padding-top: 110px;
}

.home-use-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.home-use-grid a {
  min-height: 96px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-soft);
  font-size: 18px;
  font-weight: 900;
  transition: background 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.home-use-grid a:hover {
  transform: translateY(-2px);
  border-color: rgba(216, 18, 27, 0.28);
  background: #fff;
}

.home-final-cta {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  align-items: center;
  width: min(100% - 40px, var(--max));
  margin: 0 auto 100px;
  padding: 44px;
  color: #fff;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--red-dark), var(--red));
}

.home-final-cta h2 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.08;
  font-weight: 900;
}

.home-final-cta p {
  max-width: 720px;
  margin: 14px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 17px;
}

.section {
  width: min(100% - 40px, var(--max));
  margin: 0 auto;
  padding: 96px 0;
}

.section-heading {
  max-width: 740px;
  margin: 0 auto 42px;
  text-align: center;
}

.section-heading.align-left {
  margin-left: 0;
  text-align: left;
}

.section-heading h2,
.page-hero h1,
.contact-copy h2,
.use-panel h2,
.quote-band h2 {
  margin: 0;
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.08;
  font-weight: 900;
  letter-spacing: 0;
}

.section-heading p,
.page-hero p:not(.category),
.contact-copy p,
.use-panel p,
.quote-band p {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.page-hero {
  padding: 150px max(28px, calc((100vw - var(--max)) / 2)) 76px;
  color: #fff;
  background:
    radial-gradient(circle at 74% 44%, rgba(216, 18, 27, 0.35), transparent 28%),
    linear-gradient(135deg, #111216, #20232a 58%, #090a0c);
}

.page-hero > div {
  max-width: 790px;
}

.page-hero .category {
  color: #ff4a52;
}

.page-hero p:not(.category) {
  max-width: 720px;
  color: var(--muted-dark);
}

.gateway-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.gateway-card {
  display: flex;
  min-height: 250px;
  flex-direction: column;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 18px 50px rgba(20, 22, 26, 0.06);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.gateway-card:hover {
  transform: translateY(-2px);
  border-color: rgba(216, 18, 27, 0.32);
  box-shadow: 0 24px 70px rgba(20, 22, 26, 0.12);
}

.gateway-card span {
  color: var(--red);
  font-size: 13px;
  font-weight: 900;
}

.gateway-card h3 {
  margin: auto 0 12px;
  font-size: 26px;
  line-height: 1.15;
  font-weight: 900;
}

.gateway-card p {
  margin: 0;
  color: var(--muted);
}

.price-preview-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.price-preview-card {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 22px;
  align-items: center;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 18px 50px rgba(20, 22, 26, 0.06);
}

.price-preview-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  border-radius: var(--radius);
  background: #fff;
}

.price-preview-card span {
  display: block;
  color: var(--red);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.price-preview-card strong {
  display: block;
  margin-top: 6px;
  font-size: 24px;
  line-height: 1.18;
  font-weight: 900;
}

.price-preview-card b {
  display: block;
  margin-top: 12px;
  color: var(--red);
  font-size: 28px;
  line-height: 1;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.product-card {
  display: grid;
  grid-template-rows: 430px 1fr;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 18px 50px rgba(20, 22, 26, 0.08);
}

.product-image {
  position: relative;
  overflow: hidden;
  background: #fff;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.product-image span {
  position: absolute;
  left: 18px;
  top: 18px;
  padding: 8px 12px;
  color: #fff;
  border-radius: var(--radius);
  background: rgba(0, 0, 0, 0.62);
  font-size: 12px;
  font-weight: 900;
}

.product-content {
  display: flex;
  flex-direction: column;
  padding: 28px;
}

.category {
  margin: 0 0 10px;
  color: var(--red);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.product-content h2,
.product-content h3,
.advantage-item h2,
.advantage-item h3,
.detail-panel h2 {
  margin: 0;
  font-size: 25px;
  line-height: 1.18;
  font-weight: 900;
}

.product-content p {
  margin: 14px 0 0;
  color: var(--muted);
}

.product-price,
.product-detail-price {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  min-height: 44px;
  margin-top: 16px;
  padding: 0 16px;
  border-radius: var(--radius);
  color: #fff;
  background: linear-gradient(135deg, var(--red), var(--red-dark));
  font-size: 22px;
  font-weight: 900;
  line-height: 1;
  box-shadow: 0 16px 34px rgba(216, 18, 27, 0.22);
}

.product-content ul,
.check-list {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.product-content li,
.check-list li {
  position: relative;
  padding-left: 26px;
  color: #373d46;
  font-weight: 600;
}

.product-content li::before,
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--red);
  box-shadow: 0 0 0 4px rgba(216, 18, 27, 0.12);
}

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

.advantage-section {
  width: 100%;
  max-width: none;
  padding-right: max(28px, calc((100vw - var(--max)) / 2));
  padding-left: max(28px, calc((100vw - var(--max)) / 2));
  background: var(--surface-soft);
}

.page-band {
  margin: 0;
}

.advantage-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.advantage-item {
  min-height: 270px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.advantage-item p {
  margin: 14px 0 0;
  color: var(--muted);
}

.icon {
  display: block;
  width: 44px;
  height: 44px;
  margin-bottom: 28px;
  border-radius: var(--radius);
  background: #111;
}

.icon.auto {
  background: radial-gradient(circle at 50% 30%, #fff 0 12%, transparent 13%), linear-gradient(145deg, #ff382f, #951016);
}

.icon.pressure {
  background: linear-gradient(90deg, #111 0 34%, #fff 35% 38%, #111 39% 100%);
}

.icon.install {
  background: linear-gradient(135deg, #222 0 35%, var(--red) 36% 64%, #222 65%);
}

.icon.consult {
  background: linear-gradient(145deg, var(--green), #118c3e);
}

.use-section {
  padding-top: 110px;
}

.use-panel {
  display: grid;
  grid-template-columns: 0.82fr 1fr;
  gap: 42px;
  align-items: center;
  padding: 52px;
  color: #fff;
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 75% 38%, rgba(216, 18, 27, 0.35), transparent 30%),
    linear-gradient(135deg, #111216, #20232a);
  box-shadow: var(--shadow);
}

.use-panel p {
  color: var(--muted-dark);
}

.use-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.use-list span {
  min-height: 58px;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.06);
  font-weight: 800;
}

.faq-list {
  display: grid;
  gap: 12px;
  max-width: 900px;
  margin: 0 auto;
}

details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

summary {
  min-height: 70px;
  padding: 22px 24px;
  font-weight: 900;
  cursor: pointer;
}

details p {
  margin: 0;
  padding: 0 24px 24px;
  color: var(--muted);
}

.contact-section {
  display: grid;
  grid-template-columns: 0.9fr 1fr;
  gap: 42px;
  align-items: start;
  width: min(100% - 40px, var(--max));
  margin: 0 auto 100px;
  padding: 56px;
  border-radius: var(--radius);
  background: var(--surface-soft);
}

.contact-page {
  margin-top: 72px;
}

.contact-lines {
  display: grid;
  gap: 10px;
  margin-top: 28px;
  color: #2b3038;
  font-weight: 800;
}

.contact-form {
  display: grid;
  gap: 16px;
}

.contact-form label {
  display: grid;
  gap: 8px;
  color: #2b3038;
  font-size: 13px;
  font-weight: 900;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid #d8dce4;
  border-radius: var(--radius);
  background: #fff;
  color: var(--text);
  outline: none;
}

.contact-form input {
  height: 52px;
  padding: 0 14px;
}

.contact-form textarea {
  resize: vertical;
  padding: 14px;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--red);
  box-shadow: 0 0 0 4px rgba(216, 18, 27, 0.1);
}

.site-footer {
  color: #fff;
  background: #0b0c0f;
}

.footer-grid,
.footer-bottom {
  width: min(100% - 40px, var(--max));
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 42px;
  padding: 56px 0;
}

.footer-grid h2 {
  margin: 0 0 16px;
  font-size: 14px;
  text-transform: uppercase;
}

.footer-grid p,
.footer-grid a,
.footer-grid span {
  display: block;
  margin: 8px 0 0;
  color: var(--muted-dark);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 0 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #8f96a3;
  font-size: 13px;
}

.product-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
  gap: 34px;
  align-items: center;
  min-height: 700px;
  padding: 150px max(28px, calc((100vw - var(--max)) / 2)) 72px;
  color: #fff;
  background: linear-gradient(135deg, #111216, #23262d 58%, #090a0c);
}

.product-detail-copy h1 {
  margin: 0;
  font-size: clamp(38px, 5vw, 72px);
  line-height: 1;
  font-weight: 900;
}

.product-detail-copy > p:not(.category) {
  max-width: 630px;
  margin: 22px 0 0;
  color: var(--muted-dark);
  font-size: 18px;
}

.back-link {
  display: inline-flex;
  margin-bottom: 28px;
  color: var(--muted-dark);
  font-size: 14px;
  font-weight: 800;
}

.product-detail-media {
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-detail-media img {
  width: auto;
  max-width: min(100%, 520px);
  max-height: 620px;
  aspect-ratio: auto;
  object-fit: contain;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.42);
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.detail-panel {
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 18px 50px rgba(20, 22, 26, 0.06);
}

.spec-section {
  padding-top: 20px;
}

.spec-table {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.spec-row {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 24px;
  padding: 20px 24px;
  border-top: 1px solid var(--line);
}

.spec-row:first-child {
  border-top: 0;
}

.spec-row span {
  color: var(--muted);
  font-weight: 800;
}

.spec-row strong {
  color: var(--text);
}

.comparison-table {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.comparison-row {
  display: grid;
  grid-template-columns: 220px 1fr 1fr;
  gap: 1px;
  border-top: 1px solid var(--line);
}

.comparison-row:first-child {
  border-top: 0;
}

.comparison-row > * {
  display: flex;
  align-items: center;
  min-height: 62px;
  padding: 16px 18px;
}

.comparison-head {
  background: var(--surface-soft);
}

.comparison-row span {
  color: var(--muted);
  font-weight: 900;
}

.comparison-row strong {
  font-weight: 800;
}

.comparison-row strong:first-of-type {
  color: var(--red);
}

.application-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.admin-section {
  max-width: 980px;
}

.admin-form {
  display: grid;
  gap: 18px;
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-soft);
}

.admin-form label {
  display: grid;
  gap: 8px;
  color: #2b3038;
  font-size: 13px;
  font-weight: 900;
}

.admin-form input {
  width: 100%;
  height: 52px;
  padding: 0 14px;
  border: 1px solid #d8dce4;
  border-radius: var(--radius);
  background: #fff;
  color: var(--text);
  outline: none;
}

.admin-form input:focus {
  border-color: var(--red);
  box-shadow: 0 0 0 4px rgba(216, 18, 27, 0.1);
}

.admin-product-row {
  display: grid;
  grid-template-columns: 96px 1fr 150px 120px;
  gap: 16px;
  align-items: center;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.admin-product-row img {
  width: 96px;
  height: 96px;
  object-fit: contain;
  border-radius: var(--radius);
  background: #fff;
}

.admin-product-row strong,
.admin-product-row span {
  display: block;
}

.admin-product-row strong {
  font-size: 18px;
  line-height: 1.2;
}

.admin-product-row span {
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.admin-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.admin-logout {
  color: var(--text);
  border: 1px solid var(--line);
  background: #fff;
}

.admin-alert {
  margin-bottom: 16px;
  padding: 14px 16px;
  border-radius: var(--radius);
  font-weight: 800;
}

.admin-alert.success {
  color: #0d5a2b;
  background: #dff8e9;
}

.admin-alert.error {
  color: #861119;
  background: #ffe2e4;
}

.quote-band {
  width: min(100% - 40px, var(--max));
  margin: 0 auto 96px;
  padding: 48px;
  color: #fff;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--red-dark), var(--red));
}

.quote-band p {
  max-width: 680px;
  color: rgba(255, 255, 255, 0.82);
}

.not-found {
  padding-top: 160px;
  min-height: 520px;
}

.not-found h1 {
  margin: 0;
  font-size: 54px;
  line-height: 1;
}

.not-found p {
  max-width: 560px;
  color: var(--muted);
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: auto auto;
    justify-content: space-between;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav,
  .header-cta {
    display: none;
  }

  .site-nav.is-open {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    display: grid;
    gap: 0;
    padding: 12px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius);
    background: rgba(12, 13, 15, 0.98);
  }

  .site-nav.is-open a {
    padding: 14px 12px;
  }

  .hero,
  .product-hero,
  .use-panel,
  .contact-section,
  .home-product-card,
  .home-process-inner,
  .home-final-cta {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 132px;
  }

  .hero-media,
  .product-detail-media {
    max-width: 680px;
  }

  .trust-strip,
  .gateway-grid,
  .advantage-grid,
  .home-product-grid,
  .home-use-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .product-grid,
  .detail-grid,
  .price-preview-grid,
  .application-grid {
    grid-template-columns: 1fr;
  }

  .price-preview-card,
  .admin-product-row {
    grid-template-columns: 1fr;
  }

  .contact-section,
  .use-panel,
  .home-final-cta {
    padding: 36px;
  }

  .home-product-image {
    min-height: 220px;
    padding: 22px 24px 18px;
  }

  .home-product-image img {
    height: 178px;
  }

  .process-steps div {
    grid-template-columns: 56px 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .site-header {
    width: calc(100% - 24px);
    min-height: 64px;
    margin-top: 10px;
    padding: 0 12px;
  }

  .brand {
    font-size: 20px;
  }

  .hero,
  .product-hero,
  .page-hero {
    padding: 116px 18px 52px;
  }

  .home-hero {
    min-height: auto;
  }

  .hero h1,
  .product-detail-copy h1,
  .page-hero h1 {
    font-size: 40px;
  }

  .hero p,
  .product-detail-copy > p:not(.category),
  .page-hero p:not(.category) {
    font-size: 16px;
  }

  .hero-actions,
  .card-actions,
  .home-product-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }

  .hero-media img,
  .product-detail-media img {
    aspect-ratio: 1 / 0.82;
  }

  .product-detail-media img {
    max-width: min(100%, 420px);
    max-height: none;
    aspect-ratio: auto;
  }

  .hero-product-stage {
    min-height: 360px;
    margin-top: 18px;
  }

  .hero-product-stage .hero-cutout {
    aspect-ratio: auto;
    border-radius: 0;
    box-shadow: none;
  }

  .hero-cutout-arac {
    left: auto;
    bottom: auto;
    height: 178px;
  }

  .hero-cutout-pano {
    right: auto;
    bottom: auto;
    height: 205px;
  }

  .trust-strip,
  .gateway-grid,
  .advantage-grid,
  .home-product-grid,
  .home-use-grid,
  .use-list {
    grid-template-columns: 1fr;
  }

  .trust-strip span {
    min-height: 68px;
  }

  .section {
    width: calc(100% - 28px);
    padding: 72px 0;
  }

  .section-heading h2,
  .page-hero h1,
  .contact-copy h2,
  .use-panel h2,
  .quote-band h2 {
    font-size: 32px;
  }

  .product-card {
    grid-template-rows: 380px 1fr;
  }

  .home-product-image {
    min-height: 232px;
    padding: 24px 22px 18px;
  }

  .home-product-image img {
    height: 188px;
  }

  .home-product-body {
    padding: 24px;
  }

  .home-product-body h3 {
    font-size: 28px;
  }

  .home-product-price-row strong {
    font-size: 32px;
  }

  .home-product-features {
    font-size: 13px;
  }

  .home-process {
    padding: 72px 18px;
  }

  .process-steps div {
    grid-template-columns: 1fr;
  }

  .process-steps p {
    grid-column: 1;
    margin-top: 0;
  }

  .home-final-cta {
    width: calc(100% - 28px);
    margin-bottom: 72px;
    padding: 28px;
  }

  .price-preview-card img {
    max-height: 260px;
  }

  .product-content,
  .detail-panel {
    padding: 22px;
  }

  .contact-section,
  .quote-band {
    width: calc(100% - 28px);
    padding: 28px;
  }

  .spec-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .comparison-row {
    grid-template-columns: 1fr;
  }

  .comparison-row > * {
    min-height: auto;
  }

  .footer-bottom {
    flex-direction: column;
  }
}