:root {
  --bg: #050505;
  --bg-elev: #101010;
  --card: #141414;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);
  --text: #f4f4f5;
  --muted: #a1a1aa;
  --faint: #71717a;
  --yellow: #ffe14a;
  --yellow-deep: #f5cc00;
  --ink: #141414;
  --radius: 18px;
  --header: 72px;
  --max: 1120px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

button,
summary {
  font: inherit;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -40px;
  z-index: 50;
  background: var(--yellow);
  color: var(--ink);
  padding: 8px 12px;
  border-radius: 8px;
}

.skip-link:focus {
  top: 12px;
}

.container {
  width: min(var(--max), calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  height: var(--header);
  display: flex;
  align-items: center;
  background: rgba(5, 5, 5, 0.78);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  min-height: 44px;
}

.logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 9px;
  display: grid;
  place-items: center;
  background: var(--yellow);
  color: var(--ink);
  flex: none;
}

.logo-word {
  font-weight: 700;
  letter-spacing: -0.03em;
  font-size: 1.05rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  background: var(--yellow);
  color: var(--ink);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
  text-decoration: none;
  border: 0;
  box-shadow: 0 10px 30px rgba(255, 225, 74, 0.16);
  transition: transform 0.18s ease, background 0.18s ease;
}

.btn:hover {
  background: var(--yellow-deep);
  transform: translateY(-1px);
}

.btn:focus-visible,
.logo:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--yellow);
  outline-offset: 3px;
}

.btn-lg {
  min-height: 54px;
  padding: 0 28px;
  font-size: 1rem;
}

.btn-sm {
  min-height: 42px;
  padding: 0 16px;
  font-size: 0.9rem;
  box-shadow: none;
}

.hero {
  position: relative;
  padding: 88px 0 32px;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  left: 50%;
  top: 40px;
  width: min(820px, 90vw);
  height: 360px;
  transform: translateX(-50%);
  background:
    radial-gradient(closest-side, rgba(255, 225, 74, 0.16), transparent 70%),
    radial-gradient(closest-side, rgba(168, 85, 247, 0.16), transparent 72%);
  filter: blur(8px);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  text-align: center;
}

.eyebrow,
.kicker {
  margin: 0 0 14px;
  color: var(--yellow);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin: 0 auto 18px;
  max-width: 16ch;
  font-size: clamp(2.4rem, 6vw, 4.6rem);
  line-height: 1.02;
  letter-spacing: -0.045em;
  font-weight: 750;
}

.grad {
  background: linear-gradient(100deg, #d8b4fe 0%, #f9a8d4 42%, #93c5fd 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lede {
  max-width: 680px;
  margin: 0 auto 28px;
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.15rem);
}

.hero-note {
  margin: 14px 0 0;
  color: var(--faint);
  font-size: 0.92rem;
}

.preview {
  margin: 48px auto 0;
  max-width: 860px;
}

.preview-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow);
  background: #0c0c0c;
}

.preview-sky {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 70% 20%, rgba(255, 196, 120, 0.55), transparent 42%),
    radial-gradient(ellipse at 30% 80%, rgba(88, 60, 160, 0.55), transparent 46%),
    linear-gradient(180deg, #1b2438 0%, #121018 55%, #07070a 100%);
  animation: drift 14s ease-in-out infinite alternate;
}

.preview-sky::after {
  content: "";
  position: absolute;
  left: 8%;
  right: 8%;
  bottom: 18%;
  height: 28%;
  border-radius: 50%;
  background: linear-gradient(90deg, transparent, rgba(255, 214, 120, 0.35), transparent);
  filter: blur(10px);
}

.preview-play {
  position: absolute;
  left: 50%;
  top: 42%;
  transform: translate(-50%, -50%);
  width: 74px;
  height: 74px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(5, 5, 5, 0.45);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
}

.preview-play svg {
  margin-left: 4px;
}

.preview-caption {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 16px;
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(8, 8, 8, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.08);
  text-align: left;
  backdrop-filter: blur(10px);
}

.preview-caption span {
  flex: none;
  color: var(--yellow);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.preview-caption strong {
  font-weight: 500;
  font-size: 0.92rem;
}

.feature-row {
  list-style: none;
  padding: 0;
  margin: 28px 0 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  text-align: left;
}

.feature-row li,
.card,
.prompt-list article,
.use-grid article {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.015));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 20px 20px;
}

.feature-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  margin-bottom: 14px;
  background: rgba(255, 225, 74, 0.1);
  color: var(--yellow);
  font-weight: 700;
}

.feature-row h2,
.card h3,
.steps h3,
.prompt-list h3,
.use-grid h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.feature-row p,
.card p,
.steps p,
.prompt-list p,
.use-grid p,
.faq p,
.compare span {
  margin: 0;
  color: var(--muted);
}

.section {
  padding: 88px 0;
}

.section-tight {
  padding-top: 24px;
}

.section-band {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.025), transparent 70%);
  border-block: 1px solid var(--line);
}

.section-head {
  max-width: 680px;
  margin-bottom: 36px;
}

.section-head h2,
.split h2,
.cta-inner h2 {
  margin: 0 0 12px;
  font-size: clamp(1.8rem, 4vw, 2.7rem);
  line-height: 1.12;
  letter-spacing: -0.04em;
}

.section-head p:last-child,
.prose p {
  color: var(--muted);
  font-size: 1.05rem;
}

.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: start;
}

.prose p + p {
  margin-top: 16px;
}

.card-grid,
.use-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.use-grid {
  grid-template-columns: repeat(2, 1fr);
}

.steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.steps li {
  padding: 8px 8px 0 0;
}

.step-num {
  display: block;
  margin-bottom: 16px;
  color: var(--yellow);
  font-weight: 700;
  letter-spacing: 0.08em;
}

.prompt-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.prompt-list p {
  font-size: 1.02rem;
  color: var(--text);
}

.compare {
  border: 1px solid var(--line);
  border-radius: 20px;
  overflow: hidden;
}

.compare-row {
  display: grid;
  grid-template-columns: 1.1fr 1.2fr 1.3fr;
  gap: 12px;
  padding: 16px 20px;
  border-top: 1px solid var(--line);
  align-items: center;
}

.compare-head {
  border-top: 0;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  font-weight: 650;
  font-size: 0.92rem;
}

.compare-row span:last-child {
  color: var(--text);
}

.faq-wrap {
  max-width: 800px;
}

.faq details {
  border-bottom: 1px solid var(--line);
}

.faq summary {
  cursor: pointer;
  padding: 18px 8px;
  font-weight: 650;
  letter-spacing: -0.02em;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: "+";
  color: var(--yellow);
  font-weight: 500;
  font-size: 1.3rem;
  line-height: 1;
}

.faq details[open] summary::after {
  content: "–";
}

.faq details p {
  padding: 0 8px 18px;
  max-width: 68ch;
}

.cta-band {
  padding: 28px 0 96px;
}

.cta-inner {
  text-align: center;
  padding: 56px 24px;
  border-radius: 28px;
  border: 1px solid var(--line-strong);
  background:
    radial-gradient(ellipse at 50% 0%, rgba(255, 225, 74, 0.14), transparent 55%),
    #101010;
}

.cta-inner p:last-of-type {
  max-width: 560px;
  margin: 0 auto 26px;
  color: var(--muted);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 0 calc(28px + env(safe-area-inset-bottom));
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}

.footer-inner p {
  margin: 0;
  color: var(--faint);
}

@keyframes drift {
  from {
    transform: scale(1) translate3d(0, 0, 0);
  }
  to {
    transform: scale(1.08) translate3d(-2%, -2%, 0);
  }
}

@media (max-width: 900px) {
  .feature-row,
  .card-grid,
  .steps,
  .prompt-list {
    grid-template-columns: 1fr 1fr;
  }

  .split {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .compare-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .compare-head {
    display: none;
  }

  .compare-row span[role="rowheader"] {
    color: var(--text);
    font-weight: 650;
  }
}

@media (max-width: 640px) {
  :root {
    --header: 64px;
  }

  .container {
    width: min(var(--max), calc(100% - 32px));
  }

  .hero {
    padding-top: 48px;
  }

  .feature-row,
  .card-grid,
  .use-grid,
  .steps,
  .prompt-list {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 64px 0;
  }

  .btn-sm {
    padding-inline: 14px;
  }

  .preview-caption {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .cta-inner {
    padding: 40px 18px;
  }
}

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

  .preview-sky,
  .btn {
    animation: none;
    transition: none;
  }
}