:root {
  --bg: #000000;
  --panel: #080808;
  --text: #ffffff;
  --muted: #b8b8b8;
  --quiet: #7d7d7d;
  --line: #242424;
  --max: 980px;
  --text-max: 820px;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a:visited {
  color: inherit;
}

a:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 5px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  background: #fff;
  color: #000;
  font-size: 12px;
  font-weight: 900;
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header,
.site-footer,
main {
  width: min(var(--max), calc(100% - 32px));
  margin-inline: auto;
}

.site-header {
  min-height: 104px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  color: #fff;
}

.brand img {
  width: 38px;
  height: 38px;
  display: block;
  object-fit: cover;
}

.brand span {
  color: #fff;
  font-size: clamp(21px, 3vw, 29px);
  line-height: 1;
  font-weight: 1000;
  letter-spacing: .28em;
  text-shadow: 0 0 18px rgba(255, 255, 255, .08);
}

.header-link {
  color: #fff;
  padding-bottom: 5px;
  border-bottom: 1px solid #666;
  font-size: 11px;
  line-height: 1;
  font-weight: 900;
  letter-spacing: .18em;
}

.header-link:hover {
  border-color: #fff;
}

.section {
  min-height: 40vh;
  padding: clamp(72px, 11vw, 128px) 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--line);
  text-align: center;
}

.hero {
  min-height: calc(100vh - 105px);
}

.label {
  margin: 0 0 24px;
  color: var(--quiet);
  font-size: 11px;
  line-height: 1.2;
  font-weight: 900;
  letter-spacing: .24em;
  text-transform: uppercase;
}

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

h1,
h2 {
  width: 100%;
  max-width: 920px;
  margin-bottom: 30px;
  color: #fff;
  font-size: clamp(44px, 8vw, 82px);
  line-height: .97;
  font-weight: 1000;
  letter-spacing: -.055em;
  text-wrap: balance;
}

h2 {
  max-width: 880px;
  font-size: clamp(38px, 7vw, 68px);
}

h3 {
  margin-bottom: 12px;
  color: #fff;
  font-size: clamp(22px, 3.2vw, 31px);
  line-height: 1.08;
  font-weight: 900;
  letter-spacing: -.025em;
}

.lead {
  max-width: var(--text-max);
  margin-bottom: 18px;
  color: #f2f2f2;
  font-size: clamp(19px, 2.7vw, 25px);
  line-height: 1.52;
}

.lead--muted {
  color: var(--muted);
}

.impact {
  max-width: 850px;
  margin: 34px auto 0;
  color: #fff;
  font-size: clamp(27px, 4.7vw, 47px);
  line-height: 1.08;
  font-weight: 1000;
  letter-spacing: -.035em;
  text-wrap: balance;
}

.button {
  min-height: 52px;
  margin-top: 38px;
  padding: 15px 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #fff;
  background: transparent;
  color: #fff;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.button:hover,
.button--light {
  background: #fff;
  color: #000;
}

.button--light:hover {
  background: transparent;
  color: #fff;
}

.three-lines {
  width: min(100%, 760px);
  margin-top: 42px;
  border-top: 1px solid var(--line);
}

.three-lines p {
  margin: 0;
  padding: 20px 12px;
  border-bottom: 1px solid var(--line);
  color: #fff;
  font-size: clamp(18px, 2.6vw, 24px);
  line-height: 1.35;
  font-weight: 800;
}

.flow {
  width: min(100%, 800px);
  margin-top: 34px;
  display: grid;
  justify-items: center;
  gap: 15px;
}

.flow p {
  margin: 0;
  color: #fff;
  font-size: clamp(23px, 4.2vw, 39px);
  line-height: 1.08;
  font-weight: 1000;
  letter-spacing: -.025em;
  text-align: center;
}

.flow span {
  color: #777;
  font-size: 28px;
  line-height: 1;
}

.rules {
  width: min(100%, 860px);
  margin-top: 40px;
  border-top: 1px solid var(--line);
}

.rule {
  padding: 34px 18px;
  display: grid;
  grid-template-columns: 54px 1fr 54px;
  gap: 12px;
  border-bottom: 1px solid var(--line);
  text-align: center;
}

.rule > span {
  grid-column: 1;
  color: var(--quiet);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .15em;
  text-align: left;
}

.rule > div {
  grid-column: 2;
}

.rule p {
  max-width: 690px;
  margin: 0 auto;
  color: var(--muted);
  font-size: clamp(17px, 2.3vw, 21px);
  line-height: 1.5;
}

.final {
  min-height: 72vh;
}

.final-arrow {
  margin: 6px 0 20px;
  color: #777;
  font-size: 34px;
}

.final-line {
  max-width: 900px;
  margin: 0;
  color: #fff;
  font-size: clamp(40px, 7.5vw, 76px);
  line-height: .98;
  font-weight: 1000;
  letter-spacing: -.05em;
  text-wrap: balance;
}

.contact {
  margin-top: 48px;
  padding-bottom: 7px;
  border-bottom: 2px solid #fff;
  color: #fff;
  font-size: clamp(24px, 4.5vw, 43px);
  line-height: 1;
  font-weight: 900;
  letter-spacing: -.02em;
}

.site-footer {
  padding: 32px 0 42px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px 28px;
  color: var(--quiet);
  text-align: center;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .13em;
}

@media (max-width: 680px) {
  .site-header,
  .site-footer,
  main {
    width: min(var(--max), calc(100% - 24px));
  }

  .site-header {
    min-height: 82px;
  }

  .brand {
    gap: 12px;
  }

  .brand img {
    width: 32px;
    height: 32px;
  }

  .brand span {
    font-size: 19px;
    letter-spacing: .22em;
  }

  .header-link {
    font-size: 10px;
    letter-spacing: .12em;
  }

  .hero {
    min-height: auto;
  }

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

  h1,
  h2 {
    letter-spacing: -.045em;
  }

  .rule {
    display: block;
    padding: 30px 8px;
  }

  .rule > span {
    display: block;
    margin-bottom: 13px;
    text-align: center;
  }

  .button {
    width: 100%;
  }

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

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