:root {
  --navy: #224970;
  --deep-navy: #16314e;
  --gold: #e3b03d;
  --bronze: #b07b2a;
  --paper: #f7f6f2;
  --navy-tint: #eef2f6;
  --body: #2a3340;
  --white: #ffffff;
  --line: rgba(34, 73, 112, 0.16);
  --shadow: 0 22px 50px rgba(22, 49, 78, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--body);
  font-family: Montserrat, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 28px;
  min-height: 82px;
  padding: 14px clamp(18px, 4vw, 64px);
  background: rgba(247, 246, 242, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  width: clamp(150px, 16vw, 220px);
}

.brand img {
  width: 100%;
  height: auto;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(10px, 1.5vw, 22px);
  color: var(--deep-navy);
  font-size: clamp(1.06rem, 1.18vw, 1.18rem);
  font-weight: 800;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 14px;
  border-radius: 6px;
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  background: rgba(34, 73, 112, 0.07);
  color: var(--bronze);
}

.nav-icon {
  width: 20px;
  height: 20px;
  flex: 0 0 20px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.9;
}

.handshake-icon {
  fill: currentColor;
  stroke: none;
}

.nav-emoji {
  display: inline-flex;
  width: 18px;
  height: 18px;
  align-items: center;
  justify-content: center;
  color: currentColor;
  filter: grayscale(1) sepia(1) saturate(4) hue-rotate(175deg) brightness(0.7);
  font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif;
  font-size: 17px;
  line-height: 1;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 6px;
  font-weight: 750;
  line-height: 1;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.mobile-menu {
  display: none;
}

.mobile-menu summary {
  align-items: center;
  flex-direction: column;
  justify-content: center;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--deep-navy);
  box-shadow: 0 12px 24px rgba(22, 49, 78, 0.18);
  cursor: pointer;
  list-style: none;
}

.mobile-menu summary::-webkit-details-marker {
  display: none;
}

.mobile-menu summary span {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 999px;
  background: var(--white);
}

.mobile-menu summary span + span {
  margin-top: 5px;
}

.mobile-menu-links {
  position: absolute;
  top: calc(100% + 8px);
  right: 16px;
  z-index: 20;
  display: grid;
  min-width: 158px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  box-shadow: var(--shadow);
}

.mobile-menu-links a {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 0 10px;
  border-radius: 6px;
  color: var(--deep-navy);
  font-weight: 780;
}

.mobile-menu-links a:hover,
.mobile-menu-links a:focus-visible {
  background: rgba(34, 73, 112, 0.08);
  color: var(--bronze);
}

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

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
  min-height: min(650px, calc(100vh - 82px));
  padding: clamp(38px, 5vw, 72px) clamp(20px, 5vw, 78px);
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(11, 28, 47, 0.94), rgba(34, 73, 112, 0.8)),
    linear-gradient(0deg, rgba(22, 49, 78, 0.56), rgba(22, 49, 78, 0.56)),
    url("assets/hybrid-operating-theatre.webp") center / cover no-repeat,
    var(--deep-navy);
  color: var(--white);
}

.hero::after {
  content: "";
  position: absolute;
  right: -11vw;
  bottom: -18vw;
  width: min(52vw, 680px);
  aspect-ratio: 1;
  border: 1px solid rgba(227, 176, 61, 0.24);
  border-radius: 50%;
}

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

.eyebrow {
  margin: 0 0 14px;
  color: var(--gold);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 1180px;
  margin: 0;
  color: var(--white);
  font-family: "Times New Roman", Times, serif;
  font-size: clamp(3.45rem, 7vw, 7.8rem);
  line-height: 1;
  letter-spacing: 0;
}

.hero-text {
  max-width: 680px;
  margin: 22px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(1.08rem, 1.5vw, 1.34rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.button-primary {
  background: var(--gold);
  color: var(--deep-navy);
  box-shadow: 0 16px 32px rgba(227, 176, 61, 0.18);
}

.button-secondary {
  border: 1px solid rgba(255, 255, 255, 0.26);
  color: var(--white);
}

.credibility {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border-bottom: 1px solid var(--line);
}

.credibility div {
  min-height: 148px;
  padding: clamp(22px, 3vw, 34px);
  background: var(--white);
}

.credibility strong {
  display: block;
  color: var(--deep-navy);
  font-family: "Times New Roman", Times, serif;
  font-size: clamp(1.35rem, 2.2vw, 2.15rem);
  line-height: 1.05;
}

.credibility span {
  display: block;
  margin-top: 12px;
  color: rgba(42, 51, 64, 0.74);
  font-size: 0.94rem;
}

.section,
.contact {
  padding: clamp(64px, 9vw, 120px) clamp(20px, 5vw, 78px);
}

.section-heading {
  max-width: 820px;
}

.section-heading h2,
.contact h2 {
  margin: 0;
  color: var(--deep-navy);
  font-family: "Times New Roman", Times, serif;
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 1.08;
  letter-spacing: 0;
}

.about {
  background: var(--paper);
}

.about-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(300px, 1.08fr);
  gap: clamp(30px, 6vw, 86px);
  align-items: start;
  margin-top: 30px;
}

.about-layout > p,
.reach-panel p,
.contact p {
  margin: 0;
  color: rgba(42, 51, 64, 0.76);
  font-size: clamp(1.04rem, 1.4vw, 1.22rem);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 38px;
}

.service-grid article {
  min-height: 278px;
  padding: clamp(24px, 3vw, 34px);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.service-grid span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-bottom: 26px;
  border: 1px solid rgba(227, 176, 61, 0.42);
  border-radius: 50%;
  color: var(--bronze);
  font-weight: 800;
}

.service-grid h3 {
  margin: 0 0 14px;
  color: var(--deep-navy);
  font-size: 1.18rem;
  line-height: 1.25;
}

.service-grid p {
  margin: 0;
  color: rgba(42, 51, 64, 0.72);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(300px, 1.08fr);
  gap: clamp(30px, 6vw, 86px);
  align-items: start;
}

.reach-panel {
  padding-top: 10px;
}

.city-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.city-list li,
.product-list span {
  border: 1px solid rgba(34, 73, 112, 0.18);
  border-radius: 999px;
  background: var(--white);
  color: var(--deep-navy);
  font-weight: 700;
}

.city-list li {
  padding: 10px 16px;
}

.products {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(12, 29, 49, 0.98), rgba(34, 73, 112, 0.9)),
    var(--deep-navy);
  color: var(--white);
}

.products::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("assets/akbk-logo-hero.webp") right clamp(18px, 6vw, 78px) center / min(54vw, 620px) auto no-repeat;
  opacity: 0.1;
  pointer-events: none;
}

.products .section-heading,
.product-list {
  position: relative;
  z-index: 1;
}

.products .section-heading h2 {
  color: var(--white);
}

.product-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 38px;
}

.product-list span {
  display: flex;
  align-items: center;
  min-height: 78px;
  padding: 16px 18px;
  border-color: rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  color: rgba(255, 255, 255, 0.92);
}

.brand-wall {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  margin-top: 38px;
  background: transparent;
}

.brand-wall span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 118px;
  padding: 20px;
  border: 1px solid var(--line);
  background: var(--white);
}

.brand-wall img {
  max-width: min(190px, 100%);
  max-height: 72px;
  object-fit: contain;
}

.brand-wall .supplier-logo-raykeen {
  max-height: 56px;
  max-width: 200px;
}

.brand-wall .supplier-logo-reborn {
  max-height: 82px;
  max-width: 100px;
}

.brand-wall .supplier-logo-perlove {
  max-height: 62px;
  max-width: 210px;
}

.contact {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.54fr);
  gap: clamp(30px, 6vw, 84px);
  align-items: start;
  background: var(--navy);
  color: var(--white);
}

.contact h2 {
  color: var(--white);
}

.contact p {
  max-width: 680px;
  margin-top: 22px;
  color: rgba(255, 255, 255, 0.78);
}

address {
  display: grid;
  gap: 14px;
  color: rgba(255, 255, 255, 0.84);
  font-style: normal;
}

address a {
  color: var(--gold);
  font-weight: 800;
  overflow-wrap: anywhere;
}

address .contact-email {
  color: var(--gold);
  font-size: clamp(1.28rem, 2.2vw, 2rem);
  font-weight: 800;
  overflow-wrap: anywhere;
}

address .contact-hotline a {
  font-size: 1rem;
}

address .social-link {
  display: inline-flex;
  justify-content: center;
  width: fit-content;
  width: 44px;
  height: 44px;
  align-items: center;
  border: 1px solid rgba(255, 255, 255, 0.82);
  border-radius: 6px;
  background: #0a66c2;
  color: var(--white);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.16);
}

address .social-link svg {
  width: 23px;
  height: 23px;
  fill: var(--white);
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .brand {
    grid-column: 1;
    grid-row: 1;
  }

  .mobile-menu {
    grid-column: 2;
    grid-row: 1;
    display: block;
    justify-self: end;
  }

  .mobile-menu summary {
    display: flex;
  }

  .nav-links {
    display: none;
  }

  .hero,
  .about-layout,
  .split,
  .contact {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .credibility,
  .service-grid,
  .product-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 640px) {
  .site-header {
    min-height: 72px;
    padding: 10px 16px;
    gap: 10px;
  }

  .brand {
    width: clamp(152px, 48vw, 190px);
  }

  .nav-links {
    font-size: 0.95rem;
  }

  .nav-links a {
    gap: 6px;
    min-height: 36px;
    padding: 0 8px;
  }

  .nav-icon {
    width: 16px;
    height: 16px;
    flex-basis: 16px;
  }

  .nav-emoji {
    width: 16px;
    height: 16px;
    font-size: 16px;
  }

  .hero {
    padding-top: 44px;
  }

  .hero h1 {
    font-size: clamp(2.75rem, 12vw, 4.1rem);
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .credibility,
  .service-grid,
  .product-list,
  .brand-wall {
    grid-template-columns: 1fr;
  }

  .credibility div {
    min-height: 128px;
  }

  .service-grid article {
    min-height: auto;
  }
}