:root {
  color-scheme: dark;
  --bg: #0e1030;
  --surface: #171a44;
  --raised: #23285a;
  --text: #f5f7ff;
  --muted: #b8bee2;
  --blue: #82a7ff;
  --line: #2c325f;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 32px;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
}
a {
  color: inherit;
  text-decoration: none;
}
a:hover {
  color: var(--blue);
}
a:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 6px;
}
img {
  display: block;
  max-width: 100%;
  height: auto;
}
.wrap {
  width: min(1120px, calc(100% - 64px));
  margin-inline: auto;
}
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 32px;
  gap: 32px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 22px;
  font-weight: 700;
  white-space: nowrap;
}
.brand-energy {
  font-weight: 400;
  color: var(--muted);
}
.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  object-fit: cover;
}
nav {
  display: flex;
  gap: 32px;
  align-items: center;
  font-size: 14px;
}
.languages {
  display: flex;
  gap: 8px;
  color: var(--muted);
}
.languages [aria-current] {
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 6px;
}
.skip {
  position: absolute;
  top: 8px;
  left: 8px;
  background: var(--surface);
  padding: 8px 16px;
  transform: translateY(-150%);
  z-index: 10;
}
.skip:focus {
  transform: none;
}
.hero {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  align-items: center;
  gap: 64px;
  padding-block: 64px;
}
.eyebrow {
  color: var(--blue);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0 0 16px;
}
h1,
h2,
h3 {
  line-height: 1.1;
  letter-spacing: -0.035em;
  margin: 0;
  font-weight: 700;
}
h1 {
  font-size: clamp(42px, 5vw, 64px);
  max-width: 650px;
}
h2 {
  font-size: clamp(32px, 3.5vw, 42px);
}
h3 {
  font-size: 22px;
  letter-spacing: -0.02em;
  line-height: 1.25;
}
p {
  color: var(--muted);
}
.intro {
  font-size: 18px;
  line-height: 1.65;
  margin-block: 32px;
  max-width: 560px;
}
.availability {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 14px;
  margin-bottom: 32px;
}
.availability span {
  width: 8px;
  height: 8px;
  background: #72d6a0;
  border-radius: 50%;
  flex-shrink: 0;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  min-height: 52px;
  background: var(--blue);
  color: #0b1d52;
  padding: 16px 24px;
  border-radius: 18px;
  font-weight: 600;
  line-height: 1.25;
}
.button:hover {
  background: #adc6ff;
  color: #0b1d52;
}
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}
.hero-screen {
  position: relative;
  width: 280px;
  border-radius: 28px;
  border: 1px solid #363c73;
  box-shadow: 0 32px 64px #0004;
}
.halo {
  position: absolute;
  inset: 10% -5%;
  background: linear-gradient(135deg, #2563eb, #7c3aed, #ec4899);
  opacity: 0.18;
  filter: blur(64px);
  border-radius: 50%;
  pointer-events: none;
}
.section {
  padding-block: 64px;
}
.section-intro {
  font-size: 18px;
  margin: 16px 0 32px;
}
.steps {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin: 32px 0 0;
}
.steps li {
  border-top: 1px solid var(--line);
  padding-top: 32px;
}
.step-number {
  color: var(--blue);
  display: block;
  font-size: 14px;
  margin-bottom: 32px;
}
.steps p {
  margin: 16px 0 0;
}
.control {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  background: var(--surface);
  border-radius: 28px;
  padding: 64px;
}
.control p {
  margin-bottom: 0;
}
.temperature-example > div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.temperature-example strong {
  font-size: 42px;
  line-height: 1;
}
.temperature-example span {
  color: var(--muted);
}
.temperature-example .reduced {
  color: #72d6a0;
}
.temperature-example p {
  font-size: 14px;
}
.screens {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 64px;
  margin-top: 32px;
  padding: 32px 32px 0;
}
.screens figure {
  margin: 0;
}
.screens img {
  width: 100%;
  border: 1px solid #363c73;
  border-radius: 24px;
}
.screens figcaption {
  font-size: 14px;
  color: var(--muted);
  text-align: center;
  padding-top: 16px;
}
.caption {
  text-align: center;
  font-size: 12px;
  margin: 32px 0 0;
}
.partners {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}
.partners p {
  margin-top: 0;
  margin-bottom: 32px;
}
footer {
  display: flex;
  justify-content: space-between;
  gap: 32px;
  border-top: 1px solid var(--line);
  padding-block: 32px 64px;
}
footer p,
footer small {
  font-size: 12px;
  color: var(--muted);
  margin: 8px 0;
}
footer nav {
  align-items: flex-start;
  flex-wrap: wrap;
}
section[id] {
  scroll-margin-top: 32px;
}
@media (max-width: 800px) {
  .wrap {
    width: calc(100% - 32px);
  }
  header {
    padding-block: 16px;
    flex-wrap: wrap;
    gap: 16px;
  }
  header nav {
    gap: 16px;
    justify-content: space-between;
    width: 100%;
  }
  .hero {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-block: 32px 64px;
  }
  .hero-copy {
    max-width: 600px;
  }
  .hero-screen {
    width: 240px;
  }
  .halo {
    inset: 0 10%;
  }
  .steps {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .step-number {
    margin-bottom: 16px;
  }
  .control {
    grid-template-columns: 1fr;
    padding: 32px;
    gap: 32px;
  }
  .section {
    padding-block: 32px;
  }
  .screens {
    gap: 16px;
    padding: 32px 0 0;
  }
  .screens img {
    border-radius: 14px;
  }
  .screens figcaption {
    font-size: 12px;
  }
  .partners {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  footer {
    flex-direction: column;
  }
  footer nav {
    gap: 16px;
  }
  .intro {
    margin-block: 24px;
  }
  .temperature-example strong {
    font-size: 36px;
  }
}
@media (max-width: 480px) {
  .screens {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .screens figure {
    width: min(260px, 100%);
    margin-inline: auto;
  }
  .screens figcaption {
    font-size: 14px;
  }
  .control {
    padding: 24px;
  }
  .button {
    max-width: 100%;
    gap: 16px;
  }
  h1 {
    font-size: 42px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}