@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Sora:wght@300;400;600&display=swap");

:root {
  color-scheme: dark;
  --bg: #07090f;
  --bg-deep: #05060a;
  --surface: rgba(16, 19, 30, 0.82);
  --surface-strong: rgba(15, 18, 28, 0.96);
  --stroke: rgba(96, 120, 170, 0.2);
  --text-1: #f5f7ff;
  --text-2: #c2c9e3;
  --text-3: #8d95b3;
  --accent: #6fa8ff;
  --accent-2: #44f2c4;
  --accent-3: #a855f7;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Space Grotesk", "Sora", sans-serif;
  background:
    radial-gradient(circle at 18% 18%, rgba(120, 160, 255, 0.18) 0%, transparent 45%),
    radial-gradient(circle at 78% 12%, rgba(76, 130, 255, 0.22) 0%, transparent 48%),
    radial-gradient(circle at 78% 72%, rgba(32, 210, 190, 0.18) 0%, transparent 52%),
    radial-gradient(circle at 45% 58%, rgba(168, 85, 247, 0.15) 0%, transparent 55%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
  color: var(--text-1);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

body::before {
  background:
    radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.12) 0%, transparent 48%),
    radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.08) 0%, transparent 42%),
    radial-gradient(circle at 80% 40%, rgba(255, 255, 255, 0.06) 0%, transparent 50%);
  opacity: 0.35;
  mix-blend-mode: screen;
}

body::after {
  background-image:
    radial-gradient(rgba(255, 255, 255, 0.65) 1px, transparent 1px),
    radial-gradient(rgba(120, 180, 255, 0.35) 1px, transparent 1px);
  background-size: 140px 140px, 220px 220px;
  background-position: 0 0, 60px 80px;
  opacity: 0.25;
  filter: blur(0.2px);
}

#particleCanvas {
  position: fixed;
  inset: 0;
  z-index: 0;
}

.orbital-glow {
  position: fixed;
  inset: 20% auto auto 50%;
  width: 540px;
  height: 540px;
  transform: translate(-50%, -40%);
  background: radial-gradient(circle, rgba(111, 168, 255, 0.28), transparent 62%);
  filter: blur(20px);
  z-index: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 6vw;
  background: rgba(6, 8, 14, 0.88);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(111, 168, 255, 0.12);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: radial-gradient(circle, rgba(111, 168, 255, 0.9), rgba(68, 242, 196, 0.4));
  color: #081120;
  font-weight: 700;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-title {
  font-weight: 600;
  font-size: 14px;
}

.brand-subtitle {
  font-size: 12px;
  color: var(--text-3);
}

.site-nav {
  display: flex;
  gap: 12px;
  background: rgba(20, 24, 38, 0.7);
  border-radius: 999px;
  padding: 6px;
  border: 1px solid rgba(111, 168, 255, 0.1);
}

.nav-link {
  border: none;
  background: transparent;
  color: var(--text-2);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.nav-link.is-active,
.nav-link:hover {
  background: rgba(111, 168, 255, 0.2);
  color: var(--text-1);
}

.cta-link {
  text-decoration: none;
  color: #0a0f1f;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  padding: 10px 18px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 13px;
  box-shadow: var(--shadow);
}

.page {
  position: relative;
  z-index: 1;
  padding: 40px 6vw 80px;
  display: flex;
  flex-direction: column;
  gap: 80px;
}

.section {
  padding: 40px 0;
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
  align-items: center;
}

.hero-content h1 {
  font-size: clamp(32px, 4vw, 52px);
  margin: 10px 0 14px;
  letter-spacing: -0.02em;
}

.hero-lead {
  color: var(--text-2);
  max-width: 520px;
  line-height: 1.7;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 12px;
  color: var(--accent-2);
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin: 24px 0 32px;
}

.btn {
  text-decoration: none;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn.primary {
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  color: #0a0f1f;
}

.btn.ghost {
  border: 1px solid rgba(111, 168, 255, 0.4);
  color: var(--text-1);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.trust-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
}

.trust-item {
  background: var(--surface);
  border: 1px solid var(--stroke);
  border-radius: 16px;
  padding: 14px 16px;
}

.trust-title {
  font-weight: 600;
  display: block;
}

.trust-caption {
  color: var(--text-3);
  font-size: 12px;
}

.hero-visual {
  position: relative;
  height: 340px;
  display: grid;
  place-items: center;
}

.core-ring {
  width: 240px;
  height: 240px;
  border-radius: 50%;
  border: 1px solid rgba(111, 168, 255, 0.4);
  box-shadow: 0 0 40px rgba(111, 168, 255, 0.25);
  animation: pulse 6s ease-in-out infinite;
}

.core-ring.ring-2 {
  position: absolute;
  width: 320px;
  height: 320px;
  border: 1px dashed rgba(68, 242, 196, 0.3);
  animation: spin 12s linear infinite;
}

.core-node {
  position: absolute;
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent), #0b1230 70%);
  box-shadow: 0 0 40px rgba(111, 168, 255, 0.4);
}

.core-caption {
  position: absolute;
  bottom: 24px;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-3);
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
}

.section-header h2 {
  margin: 6px 0 12px;
  font-size: clamp(24px, 3vw, 36px);
}

.section-lead {
  color: var(--text-2);
  max-width: 520px;
}

.text-link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.feature-card {
  position: relative;
  padding: 24px;
  border-radius: 20px;
  background: var(--surface);
  border: 1px solid var(--stroke);
  min-height: 220px;
}

.feature-card.premium {
  border-color: rgba(111, 168, 255, 0.4);
  box-shadow: 0 0 30px rgba(111, 168, 255, 0.2);
}

.feature-card ul {
  padding-left: 18px;
  color: var(--text-2);
  line-height: 1.7;
}

.feature-tag {
  position: absolute;
  top: 16px;
  right: 16px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(111, 168, 255, 0.2);
  font-size: 11px;
}

.premium-panel {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  background: var(--surface-strong);
  border-radius: 24px;
  padding: 28px;
  border: 1px solid rgba(111, 168, 255, 0.2);
}

.premium-copy p {
  color: var(--text-2);
  line-height: 1.7;
}

.premium-actions {
  margin-top: 16px;
  display: flex;
  gap: 12px;
}

.premium-info {
  display: grid;
  gap: 12px;
}

.info-card {
  background: rgba(12, 15, 24, 0.9);
  border-radius: 18px;
  padding: 16px;
  border: 1px solid rgba(111, 168, 255, 0.18);
  color: var(--text-2);
}

.link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.link-card {
  padding: 18px;
  border-radius: 16px;
  background: var(--surface);
  border: 1px solid var(--stroke);
  color: var(--text-1);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.link-card span {
  color: var(--text-3);
  font-size: 12px;
}

.link-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.site-footer {
  padding: 30px 6vw 60px;
  border-top: 1px solid rgba(111, 168, 255, 0.1);
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  color: var(--text-3);
  position: relative;
  z-index: 1;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--text-2);
}

.footer-link {
  color: var(--text-2);
  text-decoration: none;
  font-size: 13px;
}

.footer-link:hover {
  color: var(--text-1);
  text-decoration: underline;
}

.footer-meta {
  font-size: 12px;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

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

@media (max-width: 900px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .site-nav {
    flex-wrap: wrap;
  }

  .cta-link {
    align-self: flex-start;
  }
}

@media (max-width: 640px) {
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
  }
}