:root {
  color-scheme: dark;
  --ink: #f5f7fb;
  --muted: #a9b2c3;
  --night: #070b14;
  --surface: #101725;
  --surface-soft: #151f31;
  --line: #26344c;
  --blue: #77b7ff;
  --cyan: #5ee4d4;
  --max: 72rem;
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 20rem;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 76% 8%, rgb(31 107 132 / 28%), transparent 34rem),
    radial-gradient(circle at 15% 22%, rgb(61 85 183 / 22%), transparent 30rem), var(--night);
  font-size: 1rem;
  line-height: 1.7;
}

a {
  color: var(--blue);
  text-underline-offset: 0.22em;
}

a:hover {
  color: var(--cyan);
}

.shell {
  width: min(var(--max), calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  border-bottom: 1px solid rgb(255 255 255 / 10%);
  background: rgb(7 11 20 / 82%);
  backdrop-filter: blur(16px);
}

.site-header .shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 4.75rem;
}

.brand {
  color: var(--ink);
  font-size: 1.05rem;
  font-weight: 760;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.brand-mark {
  display: inline-block;
  width: 0.72rem;
  height: 0.72rem;
  margin-right: 0.6rem;
  border-radius: 0.2rem;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  transform: rotate(12deg);
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
}

nav a {
  color: var(--muted);
  font-size: 0.92rem;
  text-decoration: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(16rem, 0.65fr);
  gap: clamp(2.5rem, 8vw, 7rem);
  align-items: end;
  min-height: 38rem;
  padding-block: clamp(5rem, 12vw, 9rem) 5rem;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--cyan);
  font-size: 0.82rem;
  font-weight: 760;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.12;
  letter-spacing: -0.035em;
}

h1 {
  max-width: 13ch;
  margin-bottom: 1.5rem;
  font-size: clamp(3rem, 8.5vw, 7.4rem);
}

h2 {
  margin-bottom: 1.25rem;
  font-size: clamp(2rem, 4vw, 3.4rem);
}

h3 {
  font-size: 1.25rem;
}

.lead {
  max-width: 42rem;
  margin: 0;
  color: #d8dfeb;
  font-size: clamp(1.12rem, 2.2vw, 1.45rem);
}

.status-card {
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: 1.25rem;
  background: linear-gradient(145deg, rgb(21 31 49 / 94%), rgb(12 18 30 / 88%));
  box-shadow: 0 1.8rem 5rem rgb(0 0 0 / 28%);
}

.status-card p {
  margin: 0;
}

.status-card strong {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
}

.section {
  padding-block: clamp(4rem, 8vw, 7rem);
  border-top: 1px solid rgb(255 255 255 / 9%);
}

.section-intro {
  max-width: 47rem;
  margin: 0 0 2.5rem;
  color: var(--muted);
  font-size: 1.1rem;
}

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

.card {
  min-height: 15rem;
  padding: 1.6rem;
  border: 1px solid var(--line);
  border-radius: 1.25rem;
  background: rgb(16 23 37 / 78%);
}

.card-number {
  display: block;
  margin-bottom: 3.5rem;
  color: var(--cyan);
  font-size: 0.82rem;
  font-weight: 720;
}

.card p,
.muted {
  color: var(--muted);
}

.principles {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: clamp(2rem, 8vw, 7rem);
}

.principles ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.principles li {
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 1.08rem;
}

.contact-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: clamp(1.75rem, 5vw, 3.25rem);
  border: 1px solid var(--line);
  border-radius: 1.5rem;
  background: var(--surface-soft);
}

.contact-box p {
  margin: 0.55rem 0 0;
  color: var(--muted);
}

.button {
  flex: 0 0 auto;
  padding: 0.85rem 1.15rem;
  border-radius: 0.8rem;
  color: #05101c;
  background: var(--cyan);
  font-weight: 760;
  text-decoration: none;
}

.legal {
  width: min(52rem, calc(100% - 2rem));
  margin-inline: auto;
  padding-block: clamp(3rem, 8vw, 6rem);
}

.legal h1 {
  max-width: none;
  font-size: clamp(2.4rem, 7vw, 4.8rem);
}

.legal h2 {
  margin-top: 2.8rem;
  font-size: 1.55rem;
}

.legal .meta {
  margin-bottom: 2.5rem;
  color: var(--muted);
}

.legal .notice {
  padding: 1.2rem 1.35rem;
  border-left: 0.25rem solid var(--cyan);
  background: var(--surface);
}

.legal li + li {
  margin-top: 0.65rem;
}

.site-footer {
  padding-block: 2rem 3rem;
  border-top: 1px solid rgb(255 255 255 / 9%);
  color: var(--muted);
}

.site-footer .shell {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
}

@media (max-width: 48rem) {
  .site-header .shell,
  .site-footer .shell,
  .contact-box {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .hero {
    min-height: auto;
  }

  .card-number {
    margin-bottom: 2rem;
  }
}