:root {
  --ac-blue: #124361;
  --ac-blue-mid: #2081ab;
  --ac-blue-bright: #2b9fd0;
  --ac-orange: #f66a23;
  --ac-ink: #172630;
  --ac-slate: #526874;
  --ac-pale: #eef5f8;
  --ac-white: #fff;
  --ac-shadow: 0 14px 42px rgba(18, 67, 97, 0.12);
  --ac-font: system-ui, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  overflow-x: clip;
  background: var(--ac-pale);
  color: var(--ac-ink);
  font-family: var(--ac-font);
  font-size: 17px;
  line-height: 1.65;
}

.i18n[hidden] {
  display: none !important;
}

a {
  color: var(--ac-blue);
}

a:hover {
  color: var(--ac-blue-mid);
}

img {
  max-width: 100%;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(18, 67, 97, 0.14);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0.55rem 1.25rem;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
}

.brand-wordmark {
  display: block;
  width: 205px;
  height: 52px;
  object-fit: contain;
  object-position: left center;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.55rem;
  font-size: 0.9rem;
  font-weight: 650;
}

.nav-links > a {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.55rem;
  border-radius: 7px;
  color: #304b5b;
  text-decoration: none;
}

.nav-links > a:hover {
  background: rgba(32, 129, 171, 0.1);
  color: var(--ac-blue);
}

.lang-toggle {
  display: inline-flex;
  overflow: hidden;
  border: 1px solid rgba(18, 67, 97, 0.3);
  border-radius: 8px;
}

.lang-toggle button {
  min-width: 43px;
  min-height: 42px;
  padding: 0.35rem 0.7rem;
  border: 0;
  background: transparent;
  color: var(--ac-slate);
  cursor: pointer;
  font: inherit;
  font-size: 0.78rem;
  font-weight: 750;
}

.lang-toggle button:hover {
  background: rgba(32, 129, 171, 0.1);
}

.lang-toggle button[aria-pressed="true"] {
  background: var(--ac-blue);
  color: var(--ac-white);
}

.hero {
  position: relative;
  min-height: clamp(360px, 52vw, 620px);
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: var(--ac-blue);
}

.hero-photo {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(10, 37, 53, 0.86) 0%, rgba(10, 37, 53, 0.4) 58%, rgba(10, 37, 53, 0.1) 100%),
    url("./acertronix-maple-hero.jpg") center / cover no-repeat;
  transform: scale(1.01);
}

.hero-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: clamp(6rem, 12vw, 11rem) 1.25rem clamp(3rem, 7vw, 5.5rem);
}

.hero h1 {
  max-width: 760px;
  margin: 0 0 1rem;
  color: var(--ac-white);
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1.06;
  letter-spacing: -0.035em;
  text-shadow: 0 3px 24px rgba(0, 0, 0, 0.3);
}

.hero .lead {
  max-width: 760px;
  margin: 0;
  color: rgba(255, 255, 255, 0.92);
  font-size: clamp(1rem, 2vw, 1.2rem);
  line-height: 1.55;
}

section {
  padding: 5rem 1.25rem;
  scroll-margin-top: 74px;
}

.section-inner {
  max-width: 1160px;
  margin: 0 auto;
}

.section-intro {
  max-width: 760px;
  margin: 0 auto 3rem;
  text-align: center;
}

.eyebrow {
  margin: 0 0 0.45rem !important;
  color: var(--ac-orange) !important;
  font-size: 0.76rem !important;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow-light {
  color: #8ed5f3 !important;
}

.section-intro h2,
.sensormap-heading h2,
.generation-copy h2 {
  margin: 0 0 0.8rem;
  color: var(--ac-ink);
  font-size: clamp(1.75rem, 3.4vw, 2.75rem);
  line-height: 1.15;
  letter-spacing: -0.025em;
}

.section-intro > p:last-child {
  margin: 0;
  color: var(--ac-slate);
  font-size: 1.05rem;
}

.vert-band {
  background: linear-gradient(150deg, #102f42 0%, var(--ac-blue) 58%, var(--ac-blue-mid) 100%);
  color: var(--ac-white);
}

.vert-band h2 {
  margin: 0 0 0.9rem;
  text-align: center;
  font-size: clamp(1.7rem, 3.4vw, 2.6rem);
  line-height: 1.15;
}

.vert-band > .section-inner > p {
  max-width: 720px;
  margin: 0 auto 2.6rem;
  color: rgba(255, 255, 255, 0.86);
  text-align: center;
  font-size: 1.05rem;
}

.vert-columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
}

.vert-columns article {
  padding: 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.08);
}

.vert-columns h3 {
  margin: 0 0 0.5rem;
  font-size: 1.16rem;
}

.vert-columns p {
  margin: 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.94rem;
}

.projects-section {
  background: var(--ac-white);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.35rem;
}

.project-card {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(18, 67, 97, 0.11);
  border-radius: 18px;
  background: var(--ac-pale);
  box-shadow: inset 0 -4px 0 var(--ac-orange);
}

.project-card img {
  display: block;
  width: 100%;
  height: 235px;
  object-fit: cover;
}

.project-card:nth-child(1) img,
.project-card:nth-child(2) img,
.project-card:nth-child(3) img {
  object-fit: contain;
  background: #fff;
}

.project-card > div {
  padding: 1.4rem 1.45rem 1.6rem;
}

.project-number {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--ac-orange);
  font-size: 0.75rem;
  font-weight: 850;
  letter-spacing: 0.14em;
}

.project-card h3 {
  margin: 0 0 0.65rem;
  color: var(--ac-blue);
  font-size: 1.16rem;
  line-height: 1.35;
}

.project-card p {
  margin: 0;
  color: var(--ac-slate);
  font-size: 0.94rem;
}

.efficiency-graphic {
  display: block;
  width: min(100%, 320px);
  height: auto;
  margin: 1.25rem auto 0;
}

.efficiency-showcase {
  max-width: 760px;
  margin: 0 auto;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border: 1px solid rgba(18, 67, 97, 0.12);
  border-radius: 24px;
  background: linear-gradient(145deg, #fff 0%, var(--ac-pale) 100%);
  box-shadow: 0 22px 55px rgba(18, 67, 97, 0.16);
}

.efficiency-showcase .efficiency-graphic {
  width: min(100%, 620px);
  margin: 0 auto;
}

.efficiency-showcase .efficiency {
  margin: 0.75rem 0 0;
  color: var(--ac-orange);
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 850;
  text-align: center;
}

.generation-section {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: #0e2f42;
  color: var(--ac-white);
}

.generation-photo {
  position: absolute;
  z-index: -2;
  inset: 0;
  background: url("./NPX-WELLIO.jpg") center / cover no-repeat;
}

.generation-section::after {
  position: absolute;
  z-index: -1;
  inset: 0;
  background: linear-gradient(90deg, rgba(9, 32, 45, 0.98) 0%, rgba(9, 32, 45, 0.9) 48%, rgba(9, 32, 45, 0.68) 100%);
  content: "";
}

.generation-inner {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 5rem);
}

.generation-copy h2 {
  color: var(--ac-white);
}

.generation-copy > p:last-child {
  margin: 0;
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.05rem;
}

.generation-list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: generation;
}

.generation-list li {
  position: relative;
  min-height: 54px;
  margin-bottom: 0.85rem;
  padding: 0.9rem 1rem 0.9rem 4.25rem;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.09);
  color: rgba(255, 255, 255, 0.84);
  counter-increment: generation;
}

.generation-list li:last-child {
  margin-bottom: 0;
}

.generation-list li::before {
  position: absolute;
  top: 50%;
  left: 1rem;
  width: 2.35rem;
  height: 2.35rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--ac-orange);
  color: var(--ac-white);
  content: counter(generation);
  font-weight: 850;
  transform: translateY(-50%);
}

.generation-list strong {
  color: var(--ac-white);
}

.sensormap-section {
  position: relative;
  background:
    radial-gradient(circle at 80% 0%, rgba(43, 159, 208, 0.17), transparent 32rem),
    #edf6fa;
}

.sensormap-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.75fr);
  align-items: end;
  gap: 3rem;
  margin-bottom: 3rem;
}

.sensormap-heading h2 {
  margin-bottom: 0;
}

.sensormap-heading > p {
  margin: 0;
  color: var(--ac-slate);
}

.map-showcase {
  position: relative;
  min-height: 500px;
  margin: 0 auto 3.25rem;
}

.map-screen {
  position: absolute;
  overflow: hidden;
  margin: 0;
  border: 7px solid #152630;
  border-radius: 18px;
  background: #111;
  box-shadow: 0 24px 64px rgba(18, 67, 97, 0.24);
}

.map-screen img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #111;
}

.map-screen-main {
  top: 0;
  left: 0;
  width: 62%;
  height: 430px;
}

.map-screen-secondary {
  right: 0;
  bottom: 0;
  width: 53%;
  height: 310px;
}

.map-icon-orbit {
  position: absolute;
  top: 2rem;
  right: 1rem;
  display: grid;
  grid-template-columns: repeat(3, 54px);
  gap: 0.65rem;
}

.map-icon-orbit span {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border: 2px solid rgba(32, 129, 171, 0.24);
  border-radius: 50%;
  background: var(--ac-white);
  box-shadow: 0 8px 24px rgba(18, 67, 97, 0.13);
  font-size: 1.45rem;
}

.sensormap-features {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
}

.sensormap-features article {
  padding: 1.4rem;
  border: 1px solid rgba(18, 67, 97, 0.1);
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.84);
  box-shadow: inset 0 -4px 0 var(--ac-orange);
}

.feature-icon {
  display: block;
  margin-bottom: 0.6rem;
  font-size: 1.75rem;
}

.sensormap-features h3 {
  margin: 0 0 0.4rem;
  color: var(--ac-blue);
  font-size: 1.1rem;
}

.sensormap-features p {
  margin: 0;
  color: var(--ac-slate);
  font-size: 0.94rem;
}

.contact-strip {
  background: linear-gradient(150deg, #102f42 0%, var(--ac-blue) 58%, var(--ac-blue-mid) 100%);
  color: var(--ac-white);
}

.contact-strip .section-intro {
  margin-bottom: 2.25rem;
}

.contact-strip .section-intro h2 {
  color: var(--ac-white);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
  text-align: center;
}

.contact-grid > div {
  padding: 1.4rem;
  border-radius: 14px;
  background: var(--ac-pale);
}

.contact-grid h3 {
  margin: 0 0 0.55rem;
  color: var(--ac-blue-mid);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.contact-grid p {
  margin: 0;
  color: var(--ac-slate);
}

.contact-grid a {
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.site-footer {
  padding: 1.75rem 1.25rem;
  background: #0c2838;
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.88rem;
}

.footer-inner {
  max-width: 1160px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

@media (max-width: 1024px) {
  .project-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .map-showcase {
    min-height: 440px;
  }

  .map-screen-main {
    height: 370px;
  }

  .map-screen-secondary {
    height: 270px;
  }
}

@media (max-width: 820px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.35rem;
    padding-block: 0.45rem;
  }

  .brand-wordmark {
    width: 168px;
    height: 42px;
  }

  .nav-links {
    width: 100%;
    justify-content: space-between;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .nav-links::-webkit-scrollbar {
    display: none;
  }

  .vert-columns,
  .sensormap-features {
    grid-template-columns: 1fr;
  }

  .generation-inner,
  .sensormap-heading {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }

  .map-showcase {
    min-height: auto;
    display: grid;
    gap: 1.2rem;
  }

  .map-screen {
    position: relative;
    inset: auto;
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 10;
  }

  .map-screen-secondary {
    width: 88%;
    justify-self: end;
  }

  .map-icon-orbit {
    position: relative;
    inset: auto;
    grid-template-columns: repeat(6, 48px);
    justify-content: center;
  }

  .map-icon-orbit span {
    width: 48px;
    height: 48px;
    font-size: 1.25rem;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 16px;
  }

  .nav-links {
    gap: 0.2rem;
    font-size: 0.8rem;
  }

  .nav-links > a {
    padding-inline: 0.35rem;
  }

  .lang-toggle button {
    min-width: 42px;
    padding-inline: 0.45rem;
  }

  .hero {
    min-height: 430px;
  }

  .hero-photo {
    background:
      linear-gradient(0deg, rgba(10, 37, 53, 0.97) 0%, rgba(10, 37, 53, 0.55) 62%, rgba(10, 37, 53, 0.23) 100%),
      url("./acertronix-maple-hero.jpg") center / cover no-repeat;
  }

  .hero-inner {
    padding: 8rem 1rem 2.5rem;
  }

  section {
    padding: 3.5rem 1rem;
    scroll-margin-top: 105px;
  }

  .section-intro {
    margin-bottom: 2rem;
  }

  .project-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .generation-list li {
    padding-left: 3.8rem;
  }

  .map-screen-secondary {
    width: 100%;
  }

  .map-icon-orbit {
    grid-template-columns: repeat(3, 48px);
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}