:root {
  --ink: #e8eef2;
  --ink-muted: #9aadb8;
  --bg: #0b1216;
  --bg-elev: #121c22;
  --line: rgba(232, 238, 242, 0.12);
  --accent: #2fd0c6;
  --accent-deep: #149a92;
  --warn: #e2b15c;
  --font-display: "Syne", sans-serif;
  --font-body: "DM Sans", sans-serif;
  --max: 1120px;
  --nav-h: 4.25rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--font-body);
  font-optical-sizing: auto;
  background: var(--bg);
  line-height: 1.55;
  display: flex;
  flex-direction: column;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

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

.atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(900px 520px at 12% -8%, rgba(47, 208, 198, 0.18), transparent 55%),
    radial-gradient(700px 480px at 88% 8%, rgba(226, 177, 92, 0.1), transparent 50%),
    radial-gradient(1000px 700px at 50% 100%, rgba(20, 154, 146, 0.12), transparent 60%),
    linear-gradient(180deg, #0b1216 0%, #0e171c 45%, #0b1216 100%);
}

.atmosphere::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.35;
  background-image:
    linear-gradient(rgba(232, 238, 242, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(232, 238, 242, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.7), transparent 85%);
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-height: var(--nav-h);
  padding: 0.75rem clamp(1rem, 3vw, 2rem);
  backdrop-filter: blur(14px);
  background: rgba(11, 18, 22, 0.72);
  border-bottom: 1px solid var(--line);
}

.brand {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
}

.site-nav nav {
  display: flex;
  gap: 1.25rem;
  margin-left: auto;
  font-size: 0.95rem;
}

.site-nav nav a {
  text-decoration: none;
  color: var(--ink-muted);
}

.site-nav nav a:hover {
  color: var(--ink);
}

main {
  flex: 1;
  width: min(100%, var(--max));
  margin: 0 auto;
  padding: 0 clamp(1rem, 3vw, 2rem);
}

.hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
  min-height: calc(100vh - var(--nav-h) - 5rem);
  padding: clamp(2rem, 6vw, 4rem) 0;
}

.brand-mark {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 800;
  letter-spacing: 0.02em;
  line-height: 1;
}

.hero h1 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 2.8vw, 2rem);
  font-weight: 700;
  line-height: 1.2;
  max-width: 18ch;
}

.support {
  margin: 0 0 1.25rem;
  color: var(--ink-muted);
  font-size: 1.05rem;
  max-width: 42rem;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0 0 1.5rem;
  color: var(--warn);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.status-dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--warn);
  box-shadow: 0 0 0 0 rgba(226, 177, 92, 0.45);
  animation: pulse 2.4s ease-out infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(226, 177, 92, 0.45);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(226, 177, 92, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(226, 177, 92, 0);
  }
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.65rem 1.15rem;
  border-radius: 0.35rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease;
}

.btn-secondary {
  background: var(--bg-elev);
  border: 1px solid var(--line);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-ghost {
  border: 1px solid transparent;
  color: var(--ink-muted);
}

.btn-ghost:hover {
  color: var(--ink);
  border-color: var(--line);
}

.hero-visual {
  position: relative;
  min-height: 22rem;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  overflow: hidden;
  background:
    radial-gradient(circle at 30% 30%, rgba(47, 208, 198, 0.16), transparent 45%),
    radial-gradient(circle at 70% 70%, rgba(226, 177, 92, 0.12), transparent 50%),
    var(--bg-elev);
}

.hero-grid {
  position: absolute;
  inset: 0;
  opacity: 0.4;
  background-image:
    linear-gradient(rgba(232, 238, 242, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(232, 238, 242, 0.05) 1px, transparent 1px);
  background-size: 36px 36px;
  animation: drift 18s linear infinite;
}

.hero-orbit {
  position: absolute;
  inset: 18%;
  border: 1px solid rgba(47, 208, 198, 0.35);
  border-radius: 50%;
  animation: spin 22s linear infinite;
}

.hero-orbit::after {
  content: "";
  position: absolute;
  top: -0.3rem;
  left: 50%;
  width: 0.6rem;
  height: 0.6rem;
  margin-left: -0.3rem;
  border-radius: 50%;
  background: var(--accent);
}

.hero-principle {
  position: absolute;
  inset: auto 1.25rem 1.25rem 1.25rem;
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.3;
}

.site-footer {
  padding: 1.5rem clamp(1rem, 3vw, 2rem) 2rem;
  border-top: 1px solid var(--line);
  color: var(--ink-muted);
  font-size: 0.92rem;
}

.site-footer p {
  margin: 0.25rem 0;
}

.muted a {
  color: var(--ink);
}

@keyframes drift {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(36px);
  }
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero-visual {
    min-height: 16rem;
    order: -1;
  }

  .hero h1 {
    max-width: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-grid,
  .hero-orbit,
  .status-dot {
    animation: none;
  }
}