:root {
  color-scheme: dark;
  --bg: #080b10;
  --panel: #101720;
  --panel-strong: #141e29;
  --text: #eef4f7;
  --muted: #a4b1ba;
  --line: #243241;
  --accent: #45d0a3;
  --accent-strong: #2aa57f;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(69, 208, 163, 0.16), transparent 30rem),
    linear-gradient(180deg, #0c1219 0%, var(--bg) 42%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px clamp(20px, 5vw, 72px);
}

.brand,
nav,
.button,
footer {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  color: var(--text);
  font-weight: 800;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid rgba(69, 208, 163, 0.45);
  border-radius: 8px;
  color: var(--accent);
  background: rgba(69, 208, 163, 0.08);
}

nav {
  gap: clamp(14px, 3vw, 30px);
}

nav a,
footer a {
  color: var(--muted);
  text-decoration: none;
}

nav a:hover,
footer a:hover,
.support a:hover {
  color: var(--accent);
}

.hero,
.section {
  padding-inline: clamp(20px, 5vw, 72px);
}

.hero {
  max-width: 980px;
  padding-top: clamp(82px, 13vw, 160px);
  padding-bottom: clamp(80px, 12vw, 150px);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1,
h2,
h3 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  max-width: 760px;
  font-size: clamp(3.6rem, 10vw, 7.5rem);
  line-height: 0.9;
}

h2 {
  max-width: 720px;
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1;
}

h3 {
  font-size: 1.08rem;
}

.hero-text {
  max-width: 650px;
  margin: 24px 0 32px;
  color: var(--muted);
  font-size: clamp(1.08rem, 2vw, 1.35rem);
}

.button {
  width: fit-content;
  min-height: 46px;
  justify-content: center;
  padding: 0 18px;
  border-radius: 8px;
  color: #06100d;
  background: var(--accent);
  font-weight: 850;
  text-decoration: none;
}

.button:hover {
  background: #72e0bb;
}

.section {
  padding-top: clamp(54px, 8vw, 96px);
  padding-bottom: clamp(54px, 8vw, 96px);
  border-top: 1px solid var(--line);
}

.section-heading {
  margin-bottom: 26px;
}

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

article,
.encryption-list div {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(16, 23, 32, 0.82);
}

article {
  min-height: 168px;
  padding: 22px;
}

article p,
.encryption-list p,
.support p {
  margin: 10px 0 0;
  color: var(--muted);
}

.encryption {
  background: rgba(16, 23, 32, 0.44);
}

.encryption-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.encryption-list div {
  padding: 20px;
}

.encryption-list span {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.support {
  display: flex;
  justify-content: space-between;
  gap: 24px;
}

.support div {
  max-width: 720px;
}

.support a {
  color: var(--text);
  font-weight: 800;
}

footer {
  justify-content: space-between;
  gap: 18px;
  padding: 24px clamp(20px, 5vw, 72px) 36px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

@media (max-width: 1040px) {
  .grid,
  .encryption-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .site-header,
  .support,
  footer {
    align-items: flex-start;
    flex-direction: column;
  }

  nav {
    width: 100%;
    justify-content: space-between;
  }

  h1 {
    font-size: clamp(3.2rem, 18vw, 4.8rem);
  }

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