:root {
  color-scheme: dark;
  --background: #030611;
  --surface: rgba(15, 23, 52, 0.76);
  --surface-strong: #0d1530;
  --text: #f7f8ff;
  --muted: #aeb7d0;
  --cyan: #4ce7ff;
  --blue: #3f7cff;
  --violet: #8451ff;
  --magenta: #ef4fd8;
  --border: rgba(119, 153, 255, 0.24);
  --content: 760px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 15% -10%, rgba(63, 124, 255, 0.25), transparent 42%),
    radial-gradient(circle at 90% 5%, rgba(239, 79, 216, 0.18), transparent 35%),
    linear-gradient(180deg, #071027 0%, var(--background) 48%, #050311 100%);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", sans-serif;
  line-height: 1.6;
}

a { color: var(--cyan); }
a:hover { color: #b3f6ff; }

.site-header,
.site-footer,
main {
  width: min(calc(100% - 40px), var(--content));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  text-decoration: none;
  font-size: 1.08rem;
  font-weight: 760;
}

.brand img {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  box-shadow: 0 0 24px rgba(76, 231, 255, 0.28), 0 0 32px rgba(239, 79, 216, 0.18);
}

nav { display: flex; gap: 18px; }
nav a { color: var(--muted); text-decoration: none; font-weight: 650; }
nav a[aria-current="page"], nav a:hover { color: var(--text); }

main { padding: 48px 0 72px; }

.hero { padding: 52px 0 42px; text-align: center; }
.hero img {
  width: min(280px, 68vw);
  border-radius: 28%;
  box-shadow: 0 0 54px rgba(76, 231, 255, 0.2), 0 0 76px rgba(132, 81, 255, 0.22);
}

h1, h2, h3 { line-height: 1.16; letter-spacing: -0.025em; }
h1 { margin: 24px 0 12px; font-size: clamp(2.5rem, 8vw, 4.6rem); }
h2 { margin: 38px 0 10px; font-size: clamp(1.45rem, 4vw, 2rem); }
h3 { margin: 22px 0 6px; font-size: 1.12rem; }
p, li { color: var(--muted); }
.lead { max-width: 620px; margin: 0 auto; font-size: clamp(1.06rem, 3vw, 1.28rem); }

.actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 11px 18px;
  border: 1px solid var(--border);
  border-radius: 16px;
  color: var(--text);
  background: var(--surface);
  text-decoration: none;
  font-weight: 720;
}

.button.primary {
  border-color: transparent;
  background: linear-gradient(115deg, var(--blue), var(--violet), var(--magenta));
  box-shadow: 0 12px 32px rgba(95, 74, 255, 0.28);
}

.panel {
  margin: 20px 0;
  padding: clamp(20px, 5vw, 34px);
  border: 1px solid var(--border);
  border-radius: 26px;
  background: linear-gradient(145deg, rgba(18, 30, 65, 0.88), rgba(8, 12, 31, 0.82));
  box-shadow: 0 22px 54px rgba(0, 0, 0, 0.24);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 820;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.document-header { padding-bottom: 18px; border-bottom: 1px solid var(--border); }
.document-header h1 { margin: 10px 0; font-size: clamp(2.25rem, 7vw, 4rem); }
.document-header p { margin: 0; }

ul { padding-left: 1.3rem; }
li + li { margin-top: 8px; }

.site-footer {
  padding: 28px 0 42px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer div { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }
.site-footer p { margin: 0; }

@media (max-width: 600px) {
  .site-header { align-items: flex-start; }
  nav { flex-direction: column; align-items: flex-end; gap: 6px; }
  main { padding-top: 28px; }
  .hero { padding-top: 28px; }
}

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