/* ---------- reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
:root {
  --bg-0: #04030a;
  --bg-1: #0a0815;
  --bg-2: #14102a;
  --ink: #e9e6ff;
  --ink-dim: rgba(233, 230, 255, 0.65);
  --ink-faint: rgba(233, 230, 255, 0.4);
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.18);
  --accent-cyan: #6cf0ff;
  --accent-violet: #a98bff;
  --accent-pink: #ff7ac6;
  --gold: #f7d488;
  --serif: ui-serif, "Iowan Old Style", "Apple Garamond", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", system-ui, sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;
}

body {
  background: var(--bg-0);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }

/* ---------- cosmic background ---------- */
#stars {
  position: fixed; inset: 0;
  width: 100vw; height: 100vh;
  z-index: -2;
  background:
    radial-gradient(ellipse at top,    #1a0f3d 0%, #050316 55%, #02020a 100%);
}

.aurora {
  position: fixed; inset: 0;
  z-index: -1; pointer-events: none;
  filter: blur(80px);
}
.aurora .blob {
  position: absolute;
  border-radius: 50%;
  opacity: 0.45;
  mix-blend-mode: screen;
}
.blob-1 {
  width: 520px; height: 520px;
  top: -120px; right: -120px;
  background: radial-gradient(closest-side, rgba(169,139,255,0.85), transparent);
  animation: drift 22s ease-in-out infinite alternate;
}
.blob-2 {
  width: 600px; height: 600px;
  bottom: -180px; left: -160px;
  background: radial-gradient(closest-side, rgba(108,240,255,0.6), transparent);
  animation: drift 28s ease-in-out infinite alternate-reverse;
}
.blob-3 {
  width: 380px; height: 380px;
  top: 40%; left: 50%;
  transform: translate(-50%,-30%);
  background: radial-gradient(closest-side, rgba(255,122,198,0.45), transparent);
  animation: drift 32s ease-in-out infinite alternate;
}
@keyframes drift {
  0%   { transform: translate(0,0) scale(1); }
  100% { transform: translate(40px,30px) scale(1.08); }
}

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 36px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(10, 8, 21, 0.55);
  border-bottom: 1px solid var(--line);
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--serif);
  font-size: 20px; font-weight: 600;
  letter-spacing: 0.5px;
}
.brand-icon {
  width: 32px; height: 32px;
  border-radius: 7px;
  box-shadow: 0 0 18px rgba(169,139,255,0.5);
}
.nav nav { display: flex; gap: 26px; font-size: 14px; }
.nav nav a {
  color: var(--ink-dim);
  transition: color .2s ease;
}
.nav nav a:hover { color: var(--ink); }

/* ---------- hero ---------- */
.hero {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  align-items: center;
  gap: 80px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 110px 36px 90px;
}
@media (max-width: 880px) {
  .hero { grid-template-columns: 1fr; padding: 70px 24px 50px; gap: 40px; }
}
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 3px;
  font-size: 12px;
  color: var(--accent-cyan);
  margin: 0 0 18px;
}
.hero h1 {
  font-family: var(--serif);
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 24px;
  background: linear-gradient(180deg, #ffffff 0%, #d6caff 70%, #a98bff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 60px rgba(169,139,255,0.3);
}
.tagline {
  font-size: 18px;
  color: var(--ink-dim);
  margin: 0 0 32px;
  max-width: 560px;
}
.tagline strong { color: var(--ink); font-weight: 600; }
.cta { display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 20px;
  border-radius: 12px;
  font-size: 15px; font-weight: 500;
  border: 1px solid var(--line-strong);
  transition: transform .15s ease, box-shadow .25s ease, background .2s ease;
  cursor: pointer;
  font-family: var(--sans);
}
.btn:hover { transform: translateY(-1px); }
.btn-icon { font-size: 17px; }
.btn-primary {
  background: linear-gradient(135deg, #6cf0ff 0%, #a98bff 50%, #ff7ac6 100%);
  color: #0c0820;
  font-weight: 600;
  border: none;
  box-shadow: 0 8px 28px rgba(169,139,255,0.35), inset 0 0 0 1px rgba(255,255,255,0.4);
}
.btn-primary:hover {
  box-shadow: 0 14px 40px rgba(169,139,255,0.55), inset 0 0 0 1px rgba(255,255,255,0.55);
}
.btn-ghost {
  background: rgba(255,255,255,0.04);
  color: var(--ink);
}
.btn-ghost:hover { background: rgba(255,255,255,0.08); }
.btn-inline { margin-top: 8px; }

.hero-meta {
  margin-top: 24px;
  font-size: 13px;
  color: var(--ink-faint);
}

/* hero art */
.hero-art {
  display: grid; place-items: center;
}
.orbit-frame {
  position: relative;
  width: 360px; height: 360px;
  display: grid; place-items: center;
}
.hero-icon {
  width: 240px; height: 240px;
  border-radius: 54px;
  box-shadow:
    0 0 80px rgba(169,139,255,0.5),
    0 0 160px rgba(108,240,255,0.25),
    0 30px 60px rgba(0,0,0,0.55);
  animation: float 6s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}
.ring {
  position: absolute; inset: 0;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.12);
  animation: spin 30s linear infinite;
}
.ring-1 { transform: scale(1.05); }
.ring-2 { transform: scale(1.18) rotate(20deg); animation-duration: 50s; animation-direction: reverse; border-color: rgba(108,240,255,0.18); }
.ring-3 { transform: scale(1.32) rotate(-12deg); animation-duration: 70s; border-color: rgba(255,122,198,0.14); border-style: dashed; }
@keyframes spin {
  from { transform: scale(var(--s,1.05)) rotate(0deg); }
  to   { transform: scale(var(--s,1.05)) rotate(360deg); }
}

/* ---------- sections ---------- */
section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 80px 36px;
}
.section-title {
  font-family: var(--serif);
  font-size: clamp(28px, 3.4vw, 44px);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 50px;
  max-width: 720px;
  line-height: 1.15;
}
.section-eyebrow {
  display: block;
  text-transform: uppercase;
  letter-spacing: 3px;
  font-size: 11px;
  color: var(--accent-cyan);
  margin-bottom: 12px;
  font-family: var(--sans);
  font-weight: 600;
}

/* ---------- features ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
@media (max-width: 880px) { .feature-grid { grid-template-columns: 1fr; } }

.card {
  position: relative;
  padding: 26px;
  border-radius: 18px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--line);
  backdrop-filter: blur(6px);
  transition: transform .25s ease, border-color .25s ease, background .25s ease;
}
.card:hover {
  transform: translateY(-3px);
  border-color: rgba(169,139,255,0.4);
  background: rgba(255,255,255,0.05);
}
.card h3 {
  font-family: var(--serif);
  font-size: 20px; font-weight: 600;
  margin: 14px 0 8px;
  color: var(--ink);
}
.card p { margin: 0; color: var(--ink-dim); font-size: 14px; }
.card-icon { font-size: 28px; }
.card-feature {
  background: linear-gradient(160deg, rgba(169,139,255,0.16), rgba(108,240,255,0.05));
  border-color: rgba(169,139,255,0.35);
}
.badge {
  position: absolute; top: 16px; right: 16px;
  font-size: 10px; letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(169,139,255,0.25);
  color: #efe7ff;
  border: 1px solid rgba(169,139,255,0.45);
}

/* ---------- flow ---------- */
.flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  gap: 14px;
  align-items: stretch;
}
@media (max-width: 980px) {
  .flow { grid-template-columns: 1fr; }
  .flow-arrow { display: none; }
}
.flow-step {
  padding: 22px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.03);
}
.flow-num {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--accent-cyan);
  margin-bottom: 6px;
}
.flow-step h4 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 19px;
  margin: 0 0 8px;
}
.flow-step p { margin: 0; color: var(--ink-dim); font-size: 14px; }
.flow-arrow {
  display: grid; place-items: center;
  font-size: 22px;
  color: var(--accent-violet);
  opacity: 0.65;
}

/* ---------- setup ---------- */
.steps {
  list-style: none; padding: 0; margin: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  counter-reset: step;
}
@media (max-width: 880px) { .steps { grid-template-columns: 1fr; } }
.steps li {
  counter-increment: step;
  position: relative;
  padding: 26px 26px 26px 76px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.03);
}
.steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute; left: 22px; top: 22px;
  font-family: var(--mono);
  font-size: 26px;
  color: transparent;
  background: linear-gradient(180deg, #ffffff, #a98bff);
  -webkit-background-clip: text;
  background-clip: text;
}
.steps li h4 {
  font-family: var(--serif);
  font-size: 19px; font-weight: 600;
  margin: 0 0 8px;
}
.steps li p { color: var(--ink-dim); font-size: 14px; margin: 0 0 12px; }
.steps li code {
  font-family: var(--mono); font-size: 13px;
  background: rgba(255,255,255,0.07);
  padding: 1px 6px; border-radius: 5px;
  color: var(--accent-cyan);
}
.steps li pre {
  font-family: var(--mono); font-size: 13px;
  background: rgba(8,5,20,0.7);
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--line);
  overflow-x: auto;
  margin: 0;
}
.steps li pre code {
  background: none; padding: 0; color: var(--accent-cyan);
}

/* ---------- FAQ ---------- */
.faq details {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px 20px;
  margin-bottom: 12px;
  background: rgba(255,255,255,0.025);
  transition: background .2s ease;
}
.faq details[open] { background: rgba(255,255,255,0.05); }
.faq summary {
  cursor: pointer;
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 600;
  list-style: none;
  display: flex; justify-content: space-between; align-items: center;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-size: 22px;
  color: var(--accent-violet);
  transition: transform .2s ease;
}
.faq details[open] summary::after {
  content: "−";
}
.faq p {
  color: var(--ink-dim);
  font-size: 14px;
  margin: 12px 0 0;
}

/* ---------- related ---------- */
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
@media (max-width: 880px) { .related-grid { grid-template-columns: 1fr; } }
.related-card {
  padding: 24px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.03);
  display: block;
  transition: transform .2s ease, border-color .2s ease;
}
.related-card:hover {
  transform: translateY(-3px);
  border-color: rgba(108,240,255,0.4);
}
.related-card h4 {
  font-family: var(--serif);
  font-size: 19px; font-weight: 600;
  margin: 0 0 6px;
}
.related-card p {
  margin: 0;
  color: var(--ink-dim);
  font-size: 14px;
}

/* ---------- footer ---------- */
footer {
  border-top: 1px solid var(--line);
  margin-top: 60px;
  padding: 40px 36px 32px;
  background: rgba(4,3,10,0.7);
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 24px;
}
.footer-brand { display: flex; align-items: center; gap: 14px; }
.footer-brand img { width: 42px; height: 42px; border-radius: 9px; }
.footer-brand strong { font-family: var(--serif); font-size: 18px; }
.footer-brand p { margin: 2px 0 0; color: var(--ink-faint); font-size: 13px; }
.footer-links { display: flex; gap: 20px; font-size: 14px; color: var(--ink-dim); }
.footer-links a:hover { color: var(--ink); }
.copy {
  text-align: center;
  font-size: 12px;
  color: var(--ink-faint);
  margin: 30px 0 0;
}
.copy a {
  color: var(--ink-dim);
  border-bottom: 1px dotted rgba(233, 230, 255, 0.25);
  transition: color .2s ease, border-color .2s ease;
}
.copy a:hover {
  color: var(--accent-cyan);
  border-bottom-color: var(--accent-cyan);
}