:root {
  --navy-950: #03101f;
  --navy-900: #06182d;
  --navy-800: #0a2541;
  --navy-700: #12395a;
  --gold-500: #d3a647;
  --gold-400: #e4bd65;
  --paper: #ffffff;
  --muted-light: rgba(255, 255, 255, 0.72);
  --muted-dark: #64717f;
  --line-light: rgba(255, 255, 255, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--navy-950);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--paper);
  background: var(--navy-950);
  font-family: Inter, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.58;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: 0;
  content: "";
  background:
    linear-gradient(180deg, rgba(3, 16, 31, 0.9), rgba(6, 24, 45, 0.9) 42%, rgba(7, 21, 37, 0.94)),
    radial-gradient(circle at 80% 8%, rgba(211, 166, 71, 0.13), transparent 28%),
    url("assets/mountains-soft.png") center bottom / 100% auto no-repeat;
  pointer-events: none;
}

.site-header,
main,
.site-footer {
  position: relative;
  z-index: 1;
}

img,
svg {
  display: block;
}

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

button {
  font: inherit;
}

.container {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  min-height: 82px;
  grid-template-columns: auto 1fr auto auto;
  gap: 28px;
  align-items: center;
  padding: 14px 34px;
  background: rgba(3, 16, 31, 0.82);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--paper);
  font-size: 15px;
  font-weight: 900;
  text-transform: uppercase;
}

.brand img {
  width: 58px;
  height: 48px;
  object-fit: contain;
}

.site-nav {
  display: flex;
  justify-content: center;
  gap: 24px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 15px;
  font-weight: 700;
}

.site-nav a {
  padding: 8px 0;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a[aria-current="page"] {
  color: var(--gold-400);
}

.header-phone {
  color: var(--paper);
  font-weight: 900;
  white-space: nowrap;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid var(--line-light);
  border-radius: 6px;
  background: transparent;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 3px 0;
  background: var(--paper);
}

.hero {
  position: relative;
  min-height: calc(100svh - 82px);
  overflow: hidden;
  background: var(--navy-950);
}

.hero-bg,
.hero-shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-bg {
  object-fit: cover;
  object-position: center;
  opacity: 0.62;
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(3, 16, 31, 0.96), rgba(3, 16, 31, 0.74) 46%, rgba(3, 16, 31, 0.24)),
    linear-gradient(180deg, rgba(3, 16, 31, 0.2), var(--navy-950));
}

.hero-layout {
  position: relative;
  z-index: 1;
  display: grid;
  min-height: calc(100svh - 82px);
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 68px;
  align-items: center;
  padding: 68px 0;
}

.hero-logo {
  width: 210px;
  margin-bottom: 26px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--gold-500);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
}

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

h1,
h2 {
  margin-bottom: 0;
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1.05;
}

h1 {
  max-width: 820px;
  font-size: clamp(44px, 5.4vw, 78px);
}

h2 {
  font-size: clamp(30px, 3.2vw, 46px);
}

h3 {
  margin-bottom: 0;
  font-size: clamp(22px, 2.3vw, 34px);
  line-height: 1.12;
}

.hero-slogan {
  max-width: 760px;
  margin: 26px 0 0;
  color: var(--paper);
  font-size: clamp(20px, 2.2vw, 28px);
  font-weight: 800;
  line-height: 1.22;
}

.hero-text {
  max-width: 680px;
  margin: 22px 0 0;
  color: var(--muted-light);
  font-size: 19px;
}

.page-hero {
  min-height: calc(100svh - 82px);
  display: grid;
  align-items: center;
  padding: 72px 0 92px;
}

.page-hero h1 {
  max-width: 760px;
  font-size: clamp(40px, 4.4vw, 62px);
  line-height: 1.05;
  overflow-wrap: anywhere;
}

.page-hero .hero-slogan {
  max-width: 720px;
  font-size: clamp(20px, 1.8vw, 25px);
}

.page-hero .hero-text {
  max-width: 700px;
  font-size: 18px;
}

.page-hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 76px;
  align-items: center;
}

.energy-orbit,
.empty-page-mark {
  position: relative;
  display: grid;
  width: 320px;
  height: 320px;
  place-items: center;
  justify-self: end;
  color: var(--gold-500);
}

.energy-orbit::before,
.empty-page-mark::before {
  position: absolute;
  inset: 0;
  content: "";
  border: 1px solid rgba(228, 189, 101, 0.3);
  border-radius: 50%;
  background:
    radial-gradient(circle, rgba(211, 166, 71, 0.13), transparent 62%),
    rgba(255, 255, 255, 0.03);
}

.energy-orbit span {
  position: absolute;
  width: 86%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(228, 189, 101, 0.54), transparent);
}

.energy-orbit span:nth-child(1) {
  transform: rotate(0deg);
}

.energy-orbit span:nth-child(2) {
  transform: rotate(60deg);
}

.energy-orbit span:nth-child(3) {
  transform: rotate(-60deg);
}

.energy-bolt {
  position: relative;
  z-index: 1;
  width: 106px;
  height: 142px;
  fill: none;
  stroke: var(--gold-400);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 9;
}

.empty-page-mark img {
  position: relative;
  z-index: 1;
  width: 160px;
  height: 160px;
  object-fit: contain;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  border-radius: 6px;
  font-weight: 900;
}

.button-primary {
  color: var(--navy-950);
  background: var(--gold-500);
}

.button-secondary {
  color: var(--paper);
  background: rgba(255, 255, 255, 0.1);
}

.hero-facts {
  display: grid;
  gap: 34px;
}

.hero-facts div {
  position: relative;
  padding-left: 28px;
}

.hero-facts div::before {
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 0;
  width: 2px;
  content: "";
  background: var(--gold-500);
}

.hero-facts strong {
  display: block;
  color: var(--gold-500);
  font-size: 48px;
  font-weight: 900;
  line-height: 1;
}

.hero-facts span {
  display: block;
  margin-top: 10px;
  color: var(--muted-light);
  font-weight: 700;
}

.section {
  position: relative;
  padding: 110px 0;
}

section[id] {
  scroll-margin-top: 96px;
}

.about-layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 0.95fr;
  gap: 80px;
  align-items: start;
}

.about-layout p {
  color: var(--muted-light);
  font-size: 21px;
}

.section-heading {
  position: relative;
  z-index: 1;
  max-width: 880px;
  margin-bottom: 72px;
}

.activity-list {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 82px;
}

.activity-item {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 72px;
  align-items: center;
}

.activity-item-reverse {
  grid-template-columns: minmax(0, 1fr) 360px;
}

.activity-item-reverse .activity-visual {
  order: 2;
}

.activity-visual {
  position: relative;
  display: grid;
  min-height: 190px;
  place-items: center;
  color: var(--gold-500);
}

.activity-visual::before {
  position: absolute;
  width: 154px;
  height: 154px;
  content: "";
  border: 1px solid rgba(228, 189, 101, 0.28);
  border-radius: 50%;
  background:
    radial-gradient(circle, rgba(211, 166, 71, 0.1), transparent 64%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.08), transparent 52%);
}

.activity-visual img {
  position: relative;
  z-index: 1;
  width: 118px;
  height: 118px;
  object-fit: contain;
}

.activity-copy span {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--gold-500);
  font-size: 13px;
  font-weight: 900;
}

.activity-copy p {
  max-width: 660px;
  margin: 22px 0 0;
  color: var(--muted-light);
  font-size: 20px;
}

.solution-lines {
  display: grid;
  gap: 34px;
}

.solution-line {
  display: grid;
  grid-template-columns: minmax(260px, 0.72fr) minmax(0, 1fr);
  gap: 36px;
  align-items: center;
  padding: 26px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.solution-copy span {
  display: block;
  margin-bottom: 14px;
  color: var(--gold-500);
  font-size: 13px;
  font-weight: 900;
}

.solution-copy h3 {
  font-size: 27px;
}

.solution-copy p {
  max-width: 520px;
  margin: 12px 0 0;
  color: var(--muted-light);
  font-size: 17px;
}

.solution-products {
  min-width: 0;
}

.solution-products .slider-controls {
  justify-content: flex-end;
  margin-bottom: 10px;
}

.energy-benefits-list {
  display: grid;
  gap: 34px 56px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.energy-benefits-list article {
  min-width: 0;
}

.energy-benefits-list strong {
  display: inline-grid;
  min-width: 58px;
  min-height: 42px;
  place-items: center;
  margin-bottom: 18px;
  padding: 0 10px;
  border: 1px solid rgba(228, 189, 101, 0.28);
  border-radius: 999px;
  color: var(--gold-400);
  font-size: 15px;
  font-weight: 900;
}

.energy-benefits-list h3 {
  font-size: 24px;
}

.energy-benefits-list p {
  margin: 12px 0 0;
  color: var(--muted-light);
}

.product-group {
  min-width: 0;
}

.slider-controls {
  display: flex;
  gap: 10px;
  flex: 0 0 auto;
}

.slider-controls button {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid rgba(228, 189, 101, 0.34);
  border-radius: 50%;
  color: var(--gold-400);
  background: rgba(255, 255, 255, 0.05);
  cursor: pointer;
  line-height: 1;
}

.slider-controls svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2.8;
}

.slider-controls button:hover,
.slider-controls button:focus-visible {
  background: rgba(211, 166, 71, 0.16);
}

.product-slider {
  display: grid;
  grid-auto-columns: minmax(260px, 31%);
  grid-auto-flow: column;
  gap: 18px;
  overflow-x: auto;
  padding: 4px 0 18px;
  scroll-behavior: smooth;
  scroll-snap-type: x mandatory;
  scrollbar-color: rgba(228, 189, 101, 0.45) rgba(255, 255, 255, 0.08);
}

.mini-slider {
  grid-auto-columns: minmax(210px, 45%);
  gap: 12px;
  padding-bottom: 12px;
}

.product-slider article {
  display: flex;
  min-height: 230px;
  flex-direction: column;
  scroll-snap-align: start;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02)),
    rgba(3, 16, 31, 0.38);
}

.mini-slider article {
  min-height: 328px;
  padding: 18px;
}

.product-photo {
  width: 100%;
  height: 112px;
  margin-bottom: 16px;
  border-radius: 7px;
  object-fit: contain;
  padding: 6px;
  background: transparent;
}

.product-slider span {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--gold-500);
  font-size: 13px;
  font-weight: 900;
}

.product-slider h4 {
  margin: 0;
  color: var(--paper);
  font-size: 21px;
  line-height: 1.16;
}

.mini-slider h4 {
  font-size: 18px;
}

.product-slider p {
  margin: 12px 0 0;
  color: var(--muted-light);
  font-size: 15px;
}

.product-slider strong {
  display: block;
  margin-top: auto;
  padding-top: 18px;
  color: var(--gold-400);
  font-size: 16px;
  font-weight: 900;
}

.advantages-layout {
  display: grid;
  grid-template-columns: 0.72fr 1fr;
  gap: 76px;
  align-items: start;
}

.advantages-list {
  display: grid;
  gap: 38px 58px;
  grid-template-columns: repeat(2, 1fr);
}

.advantages-list article {
  position: relative;
  padding: 4px 0 0 56px;
}

.advantages-list h3 {
  font-size: 24px;
}

.advantages-list p {
  margin: 12px 0 0;
  color: var(--muted-light);
}

.advantage-icon {
  position: absolute;
  top: 7px;
  left: 0;
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: var(--gold-400);
}

.advantage-icon::before {
  position: absolute;
  inset: -5px;
  content: "";
  border-radius: 50%;
  background: rgba(211, 166, 71, 0.08);
}

.advantage-icon img {
  position: relative;
  z-index: 1;
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.final-section {
  padding-bottom: 90px;
}

.final-layout {
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  gap: 60px;
  align-items: end;
}

.contact-line {
  display: grid;
  gap: 16px;
  font-style: normal;
  color: var(--gold-400);
  font-size: 24px;
  font-weight: 900;
}

.site-footer {
  padding: 28px 0;
  color: rgba(255, 255, 255, 0.62);
  background: rgba(3, 16, 31, 0.72);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

.footer-inner a {
  color: var(--gold-400);
  font-weight: 900;
}

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

  .site-nav {
    position: fixed;
    top: 78px;
    right: 16px;
    left: 16px;
    display: none;
    flex-direction: column;
    gap: 0;
    padding: 10px;
    background: rgba(3, 16, 31, 0.96);
  }

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

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

  .header-phone {
    display: none;
  }

  .nav-toggle {
    display: grid;
  }

  .hero-layout,
  .page-hero-layout,
  .about-layout,
  .advantages-layout,
  .final-layout {
    grid-template-columns: 1fr;
  }

  .energy-orbit,
  .empty-page-mark {
    width: 240px;
    height: 240px;
    justify-self: start;
  }

  .energy-bolt {
    width: 82px;
    height: 110px;
  }

  .empty-page-mark img {
    width: 126px;
    height: 126px;
  }

  .solution-line {
    grid-template-columns: 1fr;
    gap: 18px;
  }

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

  .mini-slider {
    grid-auto-columns: minmax(220px, 48%);
  }

  .hero-facts {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .activity-item,
  .activity-item-reverse {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 38px;
  }

  .activity-item-reverse .activity-visual {
    order: 0;
  }

  .activity-visual {
    min-height: 170px;
  }

  .activity-visual::before {
    width: 132px;
    height: 132px;
  }

  .activity-visual img {
    width: 98px;
    height: 98px;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 28px, 560px);
  }

  .site-header {
    min-height: 70px;
    padding: 10px 14px;
  }

  .brand {
    font-size: 13px;
  }

  .brand img {
    width: 50px;
    height: 42px;
  }

  .site-nav {
    top: 70px;
  }

  .hero-layout {
    min-height: calc(100svh - 70px);
    padding: 54px 0;
  }

  .page-hero {
    min-height: auto;
    padding: 72px 0;
  }

  .page-hero h1 {
    font-size: 38px;
    line-height: 1.08;
  }

  .page-hero .hero-slogan {
    font-size: 21px;
  }

  .page-hero .hero-text {
    font-size: 17px;
  }

  .page-hero-layout {
    gap: 42px;
  }

  .energy-orbit,
  .empty-page-mark {
    width: 170px;
    height: 170px;
  }

  .energy-bolt {
    width: 58px;
    height: 78px;
  }

  .empty-page-mark img {
    width: 96px;
    height: 96px;
  }

  .hero-logo {
    width: 170px;
  }

  .hero-actions,
  .button {
    width: 100%;
  }

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

  .section {
    padding: 74px 0;
  }

  .section-heading {
    margin-bottom: 46px;
  }

  .activity-list {
    gap: 58px;
  }

  .activity-item,
  .activity-item-reverse {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .activity-visual {
    min-height: 138px;
  }

  .activity-visual::before {
    width: 112px;
    height: 112px;
  }

  .activity-visual img {
    width: 82px;
    height: 82px;
  }

  .activity-copy p,
  .about-layout p {
    font-size: 18px;
  }

  .advantages-list {
    grid-template-columns: 1fr;
  }

  .advantages-list article {
    padding-left: 50px;
  }

  .energy-benefits-list {
    grid-template-columns: 1fr;
  }

  .solution-line {
    padding: 22px 0;
  }

  .solution-copy h3 {
    font-size: 24px;
  }

  .solution-products .slider-controls {
    justify-content: flex-start;
  }

  .slider-controls button {
    width: 40px;
    height: 40px;
  }

  .mini-slider {
    grid-auto-columns: minmax(248px, 88%);
  }

  .contact-line {
    font-size: 20px;
  }
}