:root {
  --navy: #0B1F3A;
  --navy-dark: #061426;
  --navy-light: #123A63;
  --orange: #F97316;
  --red: #DC2626;
  --blue: #2563EB;
  --green: #16A34A;
  --yellow: #FACC15;
  --off-white: #F8FAFC;
  --light-blue: #EAF3FF;
  --light-orange: #FFF3E8;
  --light-green: #EAF8EF;
  --light-red: #FFF0F0;
  --light-yellow: #FFF9D8;
  --ink: #111827;
  --muted: #4B5563;
  --line: #E5E7EB;
  --white: #FFFFFF;
  --radius: 18px;
  --shadow-sm: 0 8px 22px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 18px 45px rgba(15, 23, 42, 0.12);
  --shadow-lg: 0 28px 70px rgba(15, 23, 42, 0.18);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  line-height: 1.65;
}

body.menu-open {
  overflow: hidden;
}

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

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

button {
  font: inherit;
}

:focus-visible {
  outline: 3px solid rgba(37, 99, 235, 0.38);
  outline-offset: 3px;
}

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

.section {
  position: relative;
  padding: 92px 0;
}

.section-light {
  background: var(--off-white);
}

.section-blue {
  background: var(--light-blue);
}

.section-orange {
  background: var(--light-orange);
}

.section-green {
  background: var(--light-green);
}

.section-yellow {
  background: var(--light-yellow);
}

.section-dark {
  color: rgba(255, 255, 255, 0.84);
  background: var(--navy-dark);
}

.section-dark h2,
.section-dark h3,
.section-dark .section-title,
.section-dark .lead {
  color: var(--white);
}

.top-strip {
  background: var(--navy-dark);
  color: rgba(255, 255, 255, 0.86);
  font-size: 13px;
}

.top-strip .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 38px;
  flex-wrap: wrap;
}

.top-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.top-links a:hover,
.footer a:hover {
  color: var(--yellow);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.97);
  transition: box-shadow 180ms ease;
}

.site-header.is-scrolled {
  box-shadow: var(--shadow-sm);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 82px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand img {
  width: 184px;
  max-width: 44vw;
  height: auto;
}

.brand-label {
  display: grid;
  padding-left: 12px;
  border-left: 1px solid var(--line);
  color: var(--navy);
  font-weight: 900;
  line-height: 1.1;
}

.brand-label span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--navy);
  font-size: 14px;
  font-weight: 850;
}

.primary-nav a {
  border-radius: 999px;
  padding: 10px 13px;
}

.primary-nav a:hover,
.primary-nav a.is-active,
.primary-nav a[aria-current="page"] {
  color: var(--blue);
  background: var(--light-blue);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--white);
  color: var(--navy);
  cursor: pointer;
}

.menu-toggle span,
.menu-toggle span::before,
.menu-toggle span::after {
  display: block;
  width: 21px;
  height: 2px;
  background: currentColor;
  transition: transform 180ms ease, opacity 180ms ease;
}

.menu-toggle span::before,
.menu-toggle span::after {
  content: "";
  position: relative;
}

.menu-toggle span::before {
  top: -7px;
}

.menu-toggle span::after {
  top: 5px;
}

.menu-toggle[aria-expanded="true"] span {
  transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span::before {
  transform: rotate(90deg) translate(7px, 0);
}

.menu-toggle[aria-expanded="true"] span::after {
  opacity: 0;
}

.mobile-panel {
  display: none;
}

.badge {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  min-height: 31px;
  border: 1px solid rgba(37, 99, 235, 0.18);
  border-radius: 999px;
  padding: 6px 12px;
  color: var(--navy);
  background: var(--light-blue);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.badge.orange {
  border-color: rgba(249, 115, 22, 0.22);
  background: var(--light-orange);
}

.badge.green {
  border-color: rgba(22, 163, 74, 0.2);
  background: var(--light-green);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 48px;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0 19px;
  font-weight: 900;
  line-height: 1;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease, color 180ms ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

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

.btn-secondary {
  color: var(--white);
  background: var(--navy);
}

.btn-light {
  color: var(--navy);
  background: var(--white);
  border-color: var(--line);
}

.btn-orange {
  color: var(--white);
  background: var(--orange);
}

.hero {
  position: relative;
  overflow: hidden;
  color: var(--white);
  background: var(--navy);
  padding: 94px 0 76px;
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  pointer-events: none;
}

.hero::before {
  left: 5%;
  top: 44px;
  width: 160px;
  height: 160px;
  border: 22px solid rgba(234, 243, 255, 0.12);
  border-radius: var(--radius);
}

.hero::after {
  right: 7%;
  bottom: -72px;
  width: 250px;
  height: 250px;
  border: 34px solid rgba(37, 99, 235, 0.25);
  border-radius: var(--radius);
  transform: rotate(10deg);
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(340px, 0.95fr);
  gap: 46px;
  align-items: center;
}

h1,
h2,
h3,
.section-title {
  margin: 0;
  color: var(--navy);
  font-family: "Space Grotesk", Inter, ui-sans-serif, system-ui, sans-serif;
  font-weight: 850;
  line-height: 1.1;
  letter-spacing: 0;
}

h1 {
  margin-top: 18px;
  color: var(--white);
  font-size: clamp(38px, 5.6vw, 67px);
}

h2,
.section-title {
  font-size: clamp(30px, 4vw, 46px);
}

h3 {
  font-size: 21px;
}

.lead,
.card p,
.card li,
.split p,
.timeline p,
.footer p {
  color: var(--muted);
}

.lead {
  max-width: 830px;
  margin: 18px 0 0;
  font-size: 18px;
}

.hero .lead,
.hero p {
  color: rgba(255, 255, 255, 0.86);
}

.hero-actions,
.section-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hero-media {
  position: relative;
}

.hero-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}

.cooling-card-stack {
  position: absolute;
  left: -18px;
  right: 18px;
  bottom: -24px;
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  background: rgba(6, 20, 38, 0.92);
  box-shadow: var(--shadow-md);
}

.cooling-card-stack span {
  border-radius: 999px;
  padding: 8px 11px;
  color: var(--navy);
  background: var(--white);
  font-size: 12px;
  font-weight: 900;
}

.air-lines {
  display: grid;
  gap: 9px;
  margin-top: 28px;
}

.air-lines span {
  display: block;
  height: 3px;
  max-width: 360px;
  border-radius: 999px;
  background: rgba(234, 243, 255, 0.35);
  animation: airflow 4s ease-in-out infinite;
}

.air-lines span:nth-child(2) {
  max-width: 300px;
  animation-delay: 0.4s;
}

.air-lines span:nth-child(3) {
  max-width: 420px;
  animation-delay: 0.8s;
}

@keyframes airflow {
  0%, 100% {
    transform: translateX(0);
    opacity: 0.45;
  }
  50% {
    transform: translateX(18px);
    opacity: 0.9;
  }
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 28px;
  margin-bottom: 34px;
}

.section-head > div {
  max-width: 780px;
}

.grid {
  display: grid;
  gap: 22px;
}

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

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 25px;
  background: var(--white);
  box-shadow: var(--shadow-sm);
}

.card::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 5px;
  background: var(--blue);
}

.card.orange::before {
  background: var(--orange);
}

.card.green::before {
  background: var(--green);
}

.card.yellow::before {
  background: var(--yellow);
}

.icon-box {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin-bottom: 18px;
  border-radius: 14px;
  color: var(--navy);
  background: var(--light-blue);
  font-weight: 900;
}

.icon-box.orange {
  background: var(--light-orange);
}

.icon-box.green {
  background: var(--light-green);
}

.icon-box.yellow {
  background: var(--light-yellow);
}

.quick-strip {
  margin-top: -28px;
  position: relative;
  z-index: 4;
}

.quick-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
  box-shadow: var(--shadow-md);
}

.quick-item {
  padding: 20px;
  background: var(--white);
}

.quick-item strong {
  display: block;
  color: var(--navy);
}

.quick-item span {
  color: var(--muted);
  font-size: 13px;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 44px;
  align-items: center;
}

.split.reverse {
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
}

.feature-image img,
.gallery-card img,
.media-tile img {
  width: 100%;
  object-fit: cover;
  border-radius: var(--radius);
}

.feature-image img {
  aspect-ratio: 16 / 10;
  box-shadow: var(--shadow-md);
}

.check-list,
.arrow-list {
  display: grid;
  gap: 10px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li,
.arrow-list li {
  position: relative;
  padding-left: 28px;
  color: var(--muted);
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 14px;
  height: 14px;
  border: 4px solid var(--light-blue);
  border-radius: 999px;
  background: var(--blue);
}

.arrow-list li::before {
  content: ">";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--orange);
  font-weight: 900;
}

.timeline {
  display: grid;
  gap: 18px;
  counter-reset: step;
}

.timeline-item {
  counter-increment: step;
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.timeline-item::before {
  content: counter(step, decimal-leading-zero);
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  border-radius: 18px;
  color: var(--white);
  background: var(--blue);
  font-family: "Space Grotesk", Inter, sans-serif;
  font-weight: 900;
}

.timeline-item:nth-child(even) {
  margin-left: 72px;
}

.timeline-item > div {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow-sm);
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.chip,
.pill {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 14px;
  color: var(--navy);
  background: var(--white);
  font-size: 14px;
  font-weight: 850;
}

.catalog {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.catalog .chip {
  justify-content: center;
  border-radius: 14px;
  min-height: 58px;
  background: var(--white);
  box-shadow: var(--shadow-sm);
}

.gallery-grid,
.media-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.gallery-card,
.media-tile {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow-sm);
}

.gallery-card img,
.media-tile img {
  aspect-ratio: 16 / 10;
  border-radius: var(--radius) var(--radius) 0 0;
}

.gallery-caption,
.media-tile div {
  padding: 18px;
}

.service-card .btn {
  margin-top: 12px;
}

.quick-answer {
  border-left: 7px solid var(--blue);
  border-radius: var(--radius);
  padding: 26px;
  background: var(--light-blue);
  box-shadow: var(--shadow-sm);
}

.decision-card {
  background: var(--white);
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-item {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  border: 0;
  padding: 20px;
  color: var(--navy);
  background: var(--white);
  cursor: pointer;
  text-align: left;
  font-weight: 900;
}

.faq-question::after {
  content: "+";
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  border-radius: 10px;
  color: var(--white);
  background: var(--blue);
}

.faq-question[aria-expanded="true"]::after {
  content: "-";
  background: var(--orange);
}

.faq-answer {
  padding: 0 20px 20px;
  color: var(--muted);
}

.cta-band {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  padding: 44px;
  color: var(--white);
  background: var(--navy);
}

.cta-band h2,
.cta-band p {
  color: var(--white);
}

.cta-band::after {
  content: "";
  position: absolute;
  right: 32px;
  bottom: -64px;
  width: 190px;
  height: 190px;
  border: 30px solid rgba(234, 243, 255, 0.14);
  border-radius: var(--radius);
}

.footer {
  background: var(--navy-dark);
  color: rgba(255, 255, 255, 0.76);
  padding: 58px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr 1fr 1fr;
  gap: 34px;
}

.footer-logo {
  width: 210px;
  max-width: 100%;
  padding: 9px;
  border-radius: 14px;
  background: var(--white);
}

.footer h2,
.footer h3 {
  color: var(--white);
  font-size: 18px;
}

.footer-links {
  display: grid;
  gap: 8px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  margin-top: 38px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.62);
  font-size: 13px;
}

.floating-actions {
  position: fixed;
  right: 18px;
  top: 50%;
  z-index: 90;
  display: grid;
  gap: 10px;
  transform: translateY(-50%);
}

.floating-actions a,
.mobile-actions a {
  display: grid;
  place-items: center;
  color: var(--white);
  font-weight: 900;
  box-shadow: var(--shadow-sm);
}

.floating-actions a {
  width: 54px;
  height: 54px;
  border-radius: 16px;
}

.action-call {
  background: var(--blue);
}

.action-whatsapp {
  background: var(--green);
}

.action-email {
  background: var(--navy);
}

.action-quote {
  background: var(--orange);
}

.mobile-actions {
  display: none;
}

.back-to-top {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 88;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border: 0;
  border-radius: 16px;
  color: var(--white);
  background: var(--navy-dark);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.reveal,
.reveal-up,
.reveal-left,
.reveal-right,
.reveal-scale,
.reveal-stagger > * {
  opacity: 0;
  transition: opacity 660ms ease, transform 660ms ease;
}

.reveal,
.reveal-up,
.reveal-stagger > * {
  transform: translateY(26px);
}

.reveal-left {
  transform: translateX(-30px);
}

.reveal-right {
  transform: translateX(30px);
}

.reveal-scale {
  transform: scale(0.96);
}

.reveal.is-visible,
.reveal-up.is-visible,
.reveal-left.is-visible,
.reveal-right.is-visible,
.reveal-scale.is-visible,
.reveal-stagger.is-visible > * {
  opacity: 1;
  transform: none;
}

.reveal-stagger > *:nth-child(2) { transition-delay: 80ms; }
.reveal-stagger > *:nth-child(3) { transition-delay: 160ms; }
.reveal-stagger > *:nth-child(4) { transition-delay: 240ms; }
.reveal-stagger > *:nth-child(5) { transition-delay: 320ms; }
.reveal-stagger > *:nth-child(6) { transition-delay: 400ms; }
.reveal-stagger > *:nth-child(7) { transition-delay: 480ms; }
.reveal-stagger > *:nth-child(8) { transition-delay: 560ms; }

@media (max-width: 1024px) {
  .primary-nav {
    display: none;
  }

  .menu-toggle {
    display: grid;
  }

  .mobile-panel {
    position: fixed;
    inset: 120px 16px auto 16px;
    z-index: 100;
    display: grid;
    gap: 12px;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--white);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-12px);
    transition: opacity 180ms ease, transform 180ms ease;
  }

  .mobile-panel.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .mobile-panel a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 46px;
    border-radius: 14px;
    padding: 10px 12px;
    color: var(--navy);
    background: var(--off-white);
    font-weight: 900;
  }

  .hero-inner,
  .split,
  .split.reverse {
    grid-template-columns: 1fr;
  }

  .grid-4,
  .catalog {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .top-strip {
    display: none;
  }

  .nav-shell {
    min-height: 74px;
  }

  .brand-label,
  .nav-actions .btn {
    display: none;
  }

  .brand img {
    max-width: 64vw;
  }

  .section {
    padding: 62px 0;
  }

  .hero {
    padding: 62px 0 58px;
  }

  .section-head {
    display: block;
  }

  .hero-actions,
  .section-actions {
    display: grid;
  }

  .btn {
    width: 100%;
  }

  .grid-2,
  .grid-3,
  .grid-4,
  .quick-grid,
  .gallery-grid,
  .media-grid,
  .catalog,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .cooling-card-stack {
    position: static;
    margin-top: 12px;
  }

  .timeline-item,
  .timeline-item:nth-child(even) {
    grid-template-columns: 1fr;
    margin-left: 0;
  }

  .cta-band {
    padding: 28px;
  }

  .footer-bottom {
    display: block;
  }

  .floating-actions {
    display: none;
  }

  .mobile-actions {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 100;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--navy-dark);
  }

  .mobile-actions a {
    min-height: 54px;
    border-radius: 0;
    box-shadow: none;
    font-size: 13px;
  }

  .back-to-top {
    right: 14px;
    bottom: 68px;
  }

  body {
    padding-bottom: 54px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .reveal,
  .reveal-up,
  .reveal-left,
  .reveal-right,
  .reveal-scale,
  .reveal-stagger > * {
    opacity: 1;
    transform: none;
  }
}