:root {
  --bg: #08080b;
  --bg-soft: #0e0e12;
  --ink: #f5f5f7;
  --ink-dim: #a3a3ad;
  --ink-softer: #6b6b75;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);
  --accent: #c7b8ff;
  --accent-2: #8ad8ff;
  --accent-3: #ffb199;
  --radius: 18px;
  --radius-sm: 10px;
  --maxw: 1180px;
  --font-serif: 'Instrument Serif', 'Times New Roman', serif;
  --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { background: var(--bg); color: var(--ink); }

body {
  font-family: var(--font-sans);
  font-weight: 400;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  min-height: 100vh;
}

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

/* Background ambient */
.bg-gradient {
  position: fixed; inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.55;
  animation: float 18s ease-in-out infinite;
}
.orb--one {
  width: 520px; height: 520px;
  background: radial-gradient(circle at 30% 30%, #7c5cff, transparent 60%);
  top: -140px; left: -120px;
}
.orb--two {
  width: 460px; height: 460px;
  background: radial-gradient(circle at 50% 50%, #3aa7ff, transparent 60%);
  top: 40%; right: -120px;
  animation-delay: -6s;
  opacity: 0.4;
}
.orb--three {
  width: 380px; height: 380px;
  background: radial-gradient(circle at 50% 50%, #ff8c6b, transparent 60%);
  bottom: -120px; left: 35%;
  animation-delay: -12s;
  opacity: 0.28;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(40px, -30px) scale(1.08); }
}

.grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
}

/* Brand wordmark */
.brand {
  display: inline-flex;
  align-items: baseline;
  font-family: var(--font-serif);
  font-size: 1.7rem;
  letter-spacing: -0.015em;
  color: var(--ink);
  font-style: italic;
  font-weight: 400;
}
.brand__word { font-style: italic; font-weight: 400; }
.brand__dot {
  color: var(--accent);
  margin: 0 1px;
}
.brand__ai {
  font-style: italic;
  font-weight: 400;
  color: var(--ink-dim);
}

/* Navigation */
.nav {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 28px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav__links {
  display: flex;
  gap: 32px;
  font-size: 0.92rem;
  color: var(--ink-dim);
}
.nav__links a {
  position: relative;
  transition: color 0.2s ease;
}
.nav__links a:hover { color: var(--ink); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 500;
  transition: all 0.22s ease;
  cursor: pointer;
  white-space: nowrap;
}
.btn--ghost {
  border: 1px solid var(--line-strong);
  color: var(--ink);
  backdrop-filter: blur(8px);
  background: rgba(255, 255, 255, 0.02);
}
.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.3);
}
.btn--primary {
  background: var(--ink);
  color: var(--bg);
  padding: 13px 24px;
  font-weight: 600;
}
.btn--primary:hover {
  background: var(--accent);
  color: var(--bg);
  transform: translateY(-1px);
}
.btn--large {
  padding: 18px 36px;
  font-size: 1.1rem;
  font-family: var(--font-serif);
  font-weight: 400;
  letter-spacing: -0.01em;
}
.btn--link {
  color: var(--ink-dim);
  padding: 11px 0;
}
.btn--link:hover {
  color: var(--ink);
}
.btn--link span { transition: transform 0.2s ease; }
.btn--link:hover span { transform: translateX(4px); }

/* Hero */
.hero {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 80px 32px 120px;
  text-align: center;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  font-size: 0.82rem;
  color: var(--ink-dim);
  margin-bottom: 36px;
  backdrop-filter: blur(8px);
}
.pill__dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero__title {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(2.6rem, 7vw, 5.6rem);
  line-height: 1.02;
  letter-spacing: -0.025em;
  margin-bottom: 28px;
}
.hero__title em {
  font-style: italic;
  background: linear-gradient(120deg, var(--accent), var(--accent-2) 50%, var(--accent-3));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.accent { color: var(--accent); }

.hero__sub {
  font-size: 1.15rem;
  color: var(--ink-dim);
  max-width: 620px;
  margin: 0 auto 40px;
  line-height: 1.6;
}

.hero__cta {
  display: flex;
  gap: 20px;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
}

/* Marquee */
.marquee {
  margin-top: 96px;
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, black 20%, black 80%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, black 20%, black 80%, transparent);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 20px 0;
}
.marquee__track {
  display: inline-flex;
  gap: 36px;
  white-space: nowrap;
  animation: scroll 38s linear infinite;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.35rem;
  color: var(--ink-dim);
}
.marquee__track span:nth-child(even) { color: var(--ink-softer); font-style: normal; }
@keyframes scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* Sections */
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 100px 32px;
}

.section__head {
  max-width: 720px;
  margin: 0 auto 64px;
  text-align: center;
}
.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-softer);
  margin-bottom: 18px;
}
.section__head h2 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(2rem, 4.6vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.section__head h2 em {
  font-style: italic;
  color: var(--accent);
}
.section__head p {
  color: var(--ink-dim);
  font-size: 1.05rem;
  line-height: 1.6;
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.card {
  position: relative;
  padding: 32px 28px 28px;
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.01));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease;
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(199, 184, 255, 0.08), transparent 60%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02));
}
.card:hover::before { opacity: 1; }
.card__index {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 2.6rem;
  color: var(--accent);
  margin-bottom: 20px;
  line-height: 1;
}
.card h3 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 1.65rem;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}
.card p {
  color: var(--ink-dim);
  font-size: 0.98rem;
  line-height: 1.6;
  margin-bottom: 24px;
}
.card__tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.card__tags span {
  font-size: 0.75rem;
  padding: 5px 10px;
  border-radius: 6px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line);
  color: var(--ink-dim);
  letter-spacing: 0.03em;
}

/* Grid 3 features */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.feature {
  padding: 40px 32px;
  border-right: 1px solid var(--line);
}
.feature:last-child { border-right: none; }
.feature__num {
  font-size: 1.4rem;
  color: var(--accent);
  margin-bottom: 16px;
  font-family: var(--font-serif);
}
.feature h4 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 1.5rem;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
}
.feature p {
  color: var(--ink-dim);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* CTA */
.cta {
  max-width: var(--maxw);
  margin: 40px auto 80px;
  padding: 0 32px;
}
.cta__inner {
  position: relative;
  padding: 100px 40px;
  text-align: center;
  border-radius: calc(var(--radius) + 10px);
  background:
    radial-gradient(circle at 20% 30%, rgba(124, 92, 255, 0.35), transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(58, 167, 255, 0.25), transparent 50%),
    linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.01));
  border: 1px solid var(--line-strong);
  overflow: hidden;
}
.cta__inner h2 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(2rem, 5vw, 3.6rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.cta__inner p {
  color: var(--ink-dim);
  font-size: 1.1rem;
  margin-bottom: 40px;
}

/* Footer */
.footer {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 40px 32px 60px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  border-top: 1px solid var(--line);
  flex-wrap: wrap;
}
.footer__brand p {
  color: var(--ink-softer);
  font-size: 0.9rem;
  margin-top: 6px;
}
.footer__meta {
  display: flex;
  gap: 28px;
  color: var(--ink-softer);
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 900px) {
  .cards, .grid-3 { grid-template-columns: 1fr; }
  .feature { border-right: none; border-bottom: 1px solid var(--line); }
  .feature:last-child { border-bottom: none; }
  .nav__links { display: none; }
  .hero { padding: 60px 24px 80px; }
  .section { padding: 70px 24px; }
  .cta__inner { padding: 70px 28px; }
}

@media (max-width: 520px) {
  .nav { padding: 20px 20px; }
  .hero__cta { flex-direction: column; gap: 14px; }
  .hero__cta .btn { width: 100%; justify-content: center; }
  .marquee__track { font-size: 1.1rem; }
}