:root {
  --ink: #111827;
  --muted: #5b6472;
  --line: #e5e7eb;
  --paper: #ffffff;
  --soft: #f4f6f8;
  --brand: #e53e2f;
  --brand-dark: #b82d22;
  --accent: #f7b731;
  --steel: #203040;
  --shadow: 0 18px 50px rgba(17, 24, 39, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
  background: var(--paper);
}

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

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

.container {
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto;
}

.topbar {
  background: var(--steel);
  color: #eef2f7;
  font-size: 14px;
}

.topbar__inner {
  min-height: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.topbar__social,
.topbar__contact {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
}

.topbar__social a {
  color: #fff;
  font-weight: 800;
}

.topbar__contact {
  color: #dfe6ee;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: #fff;
  box-shadow: 0 8px 22px rgba(17, 24, 39, 0.08);
}

.navbar__inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 18px;
  line-height: 1.1;
}

.brand__logo {
  width: 64px;
  height: 48px;
  object-fit: contain;
  flex: 0 0 auto;
}

.brand small {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  color: #1f2937;
  font-weight: 700;
}

.nav-links a {
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -9px;
  height: 2px;
  background: var(--brand);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.nav-links a:hover::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 10px;
}

.nav-toggle span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--ink);
}

.hero {
  min-height: calc(100vh - 116px);
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero__media,
.hero__overlay {
  position: absolute;
  inset: 0;
}

.hero__media {
  background-image: url("assets/photos/access-tower-2.jpeg");
  background-size: cover;
  background-position: center;
  transform: scale(1.02);
  transition: background-image 500ms ease, opacity 500ms ease;
}

.hero__overlay {
  background: linear-gradient(90deg, rgba(12, 17, 24, 0.88), rgba(12, 17, 24, 0.56), rgba(12, 17, 24, 0.22));
}

.hero__content {
  position: relative;
  z-index: 1;
  padding: 78px 0 110px;
  color: #fff;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--brand);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0;
}

.hero .eyebrow {
  color: var(--accent);
}

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

h1 {
  max-width: 760px;
  margin-bottom: 22px;
  font-size: clamp(42px, 7vw, 78px);
  line-height: 1.02;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.12;
}

h3 {
  margin-bottom: 10px;
  font-size: 21px;
  line-height: 1.2;
}

.hero__text {
  max-width: 650px;
  color: #e8eef6;
  font-size: 19px;
}

.hero__actions,
.cta__inner {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 34px;
}

.hero__facts span {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 8px 13px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  color: #f3f6fa;
  background: rgba(255, 255, 255, 0.08);
  font-size: 14px;
  font-weight: 700;
}

.hero__dots {
  display: flex;
  gap: 10px;
  margin-top: 30px;
}

.hero__dots button {
  width: 34px;
  height: 5px;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.42);
  cursor: pointer;
}

.hero__dots button.is-active {
  background: var(--accent);
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 13px 22px;
  font-weight: 800;
  cursor: pointer;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button--primary {
  background: var(--brand);
  color: #fff;
}

.button--primary:hover {
  background: var(--brand-dark);
}

.button--ghost {
  border-color: rgba(255, 255, 255, 0.55);
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.section {
  padding: 88px 0;
}

.section--muted {
  background: var(--soft);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.intro__grid {
  display: grid;
  grid-template-columns: 0.9fr 1fr 0.9fr;
  gap: 60px;
  align-items: start;
}

.intro__copy {
  color: var(--muted);
  font-size: 18px;
}

.intro__checks {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}

.intro__checks span {
  position: relative;
  padding-left: 26px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 800;
}

.intro__checks span::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 12px;
  height: 12px;
  border-radius: 3px;
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(247, 183, 49, 0.22);
}

.intro__image {
  overflow: hidden;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.intro__image img {
  height: 360px;
  object-fit: cover;
  object-position: center;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 24px;
}

.service-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
}

.service-card img {
  height: 245px;
  object-fit: cover;
}

.image-focus-left {
  object-position: left center;
}

.image-focus-center {
  object-position: center center;
}

.image-focus-right {
  object-position: right center;
}

.image-focus-bottom {
  object-position: center bottom;
}

.service-card__body {
  padding: 24px;
}

.read-more {
  display: inline-flex;
  margin-top: 8px;
  color: var(--brand);
  font-size: 14px;
  font-weight: 900;
}

.service-card p,
.product-grid p,
.process-grid p,
.contact p,
.footer p {
  color: var(--muted);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 24px;
}

.product-grid article {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 14px 36px rgba(17, 24, 39, 0.09);
}

.product-grid img {
  height: 190px;
  object-fit: cover;
}

.product-grid article div {
  padding: 22px;
}

.process-grid article {
  min-height: 178px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.product-grid span,
.process-grid span {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  border-radius: 8px;
  color: #fff;
  font-weight: 800;
  background: var(--steel);
}

.product-grid span {
  width: auto;
  height: auto;
  display: inline-block;
  margin-bottom: 12px;
  padding: 5px 10px;
  border-radius: 4px;
  background: var(--brand);
  font-size: 13px;
}

.cta {
  padding: 58px 0;
  color: #fff;
  background: linear-gradient(135deg, var(--steel), #364556);
}

.cta .eyebrow {
  color: var(--accent);
}

.cta h2 {
  margin-bottom: 8px;
}

.cta p {
  margin-bottom: 0;
  color: #d9e0e8;
}

.cta__inner {
  justify-content: space-between;
}

.why-us {
  color: #fff;
  background: #17212d;
}

.why-us .eyebrow {
  color: var(--accent);
}

.why-us__grid {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 52px;
  align-items: start;
}

.why-us__items {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.why-us__items article {
  min-height: 185px;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
}

.why-us__items strong {
  display: block;
  margin-bottom: 10px;
  color: #fff;
  font-size: 18px;
}

.why-us__items p {
  margin-bottom: 0;
  color: #cbd5e1;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.8fr;
  grid-auto-rows: 220px;
  gap: 16px;
}

.gallery-grid img {
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
}

.gallery-grid img:first-child {
  grid-row: span 2;
}

.contact {
  background: #fff;
}

.contact__grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 52px;
  align-items: start;
}

.contact-list {
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.quote-form {
  display: grid;
  gap: 16px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
}

.quote-form label {
  display: grid;
  gap: 7px;
  color: #243041;
  font-weight: 800;
}

.quote-form input,
.quote-form textarea {
  width: 100%;
  border: 1px solid #d7dce3;
  border-radius: 8px;
  padding: 13px 14px;
  color: var(--ink);
  font: inherit;
  background: #fff;
}

.quote-form textarea {
  resize: vertical;
}

.form-note {
  min-height: 24px;
  margin: 0;
  color: var(--brand-dark);
  font-weight: 700;
}

.footer {
  padding: 58px 0 22px;
  color: #dce3ea;
  background: #111827;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr 0.8fr;
  gap: 48px;
}

.footer .brand {
  margin-bottom: 18px;
  color: #fff;
}

.footer__logo {
  width: min(320px, 100%);
  height: auto;
  display: block;
}

.footer .brand small,
.footer p {
  color: #aeb8c4;
}

.footer h3 {
  color: #fff;
}

.footer a:not(.brand) {
  display: block;
  margin: 9px 0;
  color: #cbd5e1;
}

.footer__bottom {
  margin-top: 34px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.13);
  color: #aeb8c4;
  font-size: 14px;
}

.whatsapp-float {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 30;
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: #25d366;
  box-shadow: 0 14px 34px rgba(17, 24, 39, 0.28);
  font-size: 15px;
  font-weight: 900;
}

@media (max-width: 900px) {
  .topbar__inner {
    justify-content: center;
    gap: 12px 20px;
    padding: 9px 0;
  }

  .topbar__social,
  .topbar__contact {
    justify-content: center;
    gap: 10px 18px;
  }

  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 16px 18px;
    background: #fff;
    border-top: 1px solid var(--line);
    box-shadow: 0 16px 28px rgba(17, 24, 39, 0.1);
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-links a {
    padding: 13px 0;
  }

  .nav-links a::after {
    display: none;
  }

  .hero {
    min-height: 680px;
  }

  .intro__grid,
  .why-us__grid,
  .contact__grid,
  .footer__grid {
    grid-template-columns: 1fr;
  }

  .process-grid,
  .why-us__items {
    grid-template-columns: 1fr;
  }

  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 600px) {
  .container {
    width: min(100% - 24px, 1160px);
  }

  .navbar__inner {
    min-height: 68px;
  }

  .brand__logo {
    width: 56px;
    height: 42px;
  }

  .hero {
    min-height: 620px;
  }

  .hero__overlay {
    background: rgba(12, 17, 24, 0.74);
  }

  .hero__content {
    padding: 58px 0 78px;
  }

  .hero__facts span {
    width: 100%;
  }

  .section {
    padding: 62px 0;
  }

  .service-grid,
  .product-grid,
  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .gallery-grid {
    grid-auto-rows: 210px;
  }

  .gallery-grid img:first-child {
    grid-row: auto;
  }

  .quote-form {
    padding: 20px;
  }

  .whatsapp-float {
    right: 14px;
    bottom: 14px;
    width: 52px;
    height: 52px;
  }
}