:root {
  --color-bg: #0c0a14; --color-surface: rgba(139,92,246,0.06);
  --color-text: #f5f0ff; --color-text-secondary: #c4b5fd;
  --color-primary: #8b5cf6; --color-accent: #ec4899;
  --color-success: #10b981; --color-warning: #f59e0b; --color-danger: #ef4444;
  --color-border: rgba(139,92,246,0.12);
  --gradient-primary: linear-gradient(160deg, #8b5cf6, #ec4899, #f97316);
  --gradient-bg: radial-gradient(ellipse at 20% 50%, rgba(139,92,246,0.08) 0%, transparent 50%),
                 radial-gradient(ellipse at 80% 20%, rgba(236,72,153,0.06) 0%, transparent 50%);
  --font: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --fs-xs: 0.75rem; --fs-sm: 0.875rem; --fs-base: 1rem; --fs-lg: 1.125rem;
  --fs-xl: 1.25rem; --fs-2xl: 1.5rem; --fs-3xl: 2rem; --fs-4xl: 2.5rem; --fs-5xl: 3.5rem;
  --space-xs: 0.5rem; --space-sm: 0.75rem; --space-md: 1rem; --space-lg: 1.5rem;
  --space-xl: 2rem; --space-2xl: 3rem; --space-3xl: 4rem; --space-4xl: 6rem;
  --radius-sm: 9px; --radius-md: 14px; --radius-lg: 20px; --radius-xl: 28px; --radius-full: 9999px;
  --max-width: 1120px; --blur: blur(40px);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font); background: var(--color-bg); color: var(--color-text);
  line-height: 1.6; -webkit-font-smoothing: antialiased; min-height: 100vh;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 var(--space-lg); }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(12,10,20,0.85); backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur);
  border-bottom: 1px solid rgba(139,92,246,0.1); padding: var(--space-md) 0;
}
.nav .container { display: flex; align-items: center; justify-content: space-between; }
.nav__logo { display: flex; align-items: center; gap: var(--space-xs); font-weight: 700; font-size: var(--fs-lg); }
.nav__logo img { width: 32px; height: 32px; }
.nav__links { display: flex; align-items: center; gap: var(--space-xl); list-style: none; }
.nav__links a { font-size: var(--fs-sm); color: var(--color-text-secondary); transition: color 0.2s; }
.nav__links a:hover { color: var(--color-text); }
.nav__cta {
  display: inline-flex; align-items: center; gap: var(--space-xs);
  padding: 0.5rem 1.25rem; background: var(--gradient-primary); color: #fff;
  border-radius: var(--radius-full); font-size: var(--fs-sm); font-weight: 600; transition: opacity 0.2s;
}
.nav__cta:hover { opacity: 0.9; }
.nav__toggle { display: none; }
.nav__hamburger { display: none; cursor: pointer; }
.nav__hamburger span, .nav__hamburger span::before, .nav__hamburger span::after {
  display: block; width: 24px; height: 2px; background: var(--color-text);
  transition: transform 0.3s, opacity 0.3s; position: relative;
}
.nav__hamburger span::before, .nav__hamburger span::after { content: ''; position: absolute; left: 0; width: 24px; }
.nav__hamburger span::before { top: -7px; }
.nav__hamburger span::after { top: 7px; }

/* Hero */
.hero { position: relative; text-align: center; padding: var(--space-4xl) var(--space-lg); overflow: hidden; }
.hero::before { content: ''; position: absolute; inset: 0; background: var(--gradient-bg); pointer-events: none; }
.hero__eyebrow {
  display: inline-block; font-size: var(--fs-sm); font-weight: 600; color: var(--color-primary);
  text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: var(--space-md); position: relative;
}
.hero__title {
  font-size: var(--fs-4xl); font-weight: 800; letter-spacing: -0.03em;
  line-height: 1.1; margin-bottom: var(--space-lg); position: relative;
}
.hero__title span {
  background: var(--gradient-primary); -webkit-background-clip: text;
  background-clip: text; -webkit-text-fill-color: transparent;
}
.hero__subtitle {
  font-size: var(--fs-lg); color: var(--color-text-secondary);
  max-width: 560px; margin: 0 auto var(--space-2xl); position: relative;
}
.hero__ctas {
  display: flex; gap: var(--space-md); justify-content: center;
  flex-wrap: wrap; margin-bottom: var(--space-xl); position: relative;
}
.btn {
  display: inline-flex; align-items: center; gap: var(--space-xs);
  padding: 0.875rem 2rem; border-radius: var(--radius-full); font-size: var(--fs-base);
  font-weight: 700; font-family: var(--font); cursor: pointer; border: none;
  transition: transform 0.15s, opacity 0.2s, box-shadow 0.2s;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 0 30px rgba(139,92,246,0.2); }
.btn:active { transform: translateY(0); }
.btn--primary { background: linear-gradient(160deg, #8b5cf6, #ec4899, #f97316); color: #fff; }
.btn--primary:hover { background: linear-gradient(160deg, #7c3aed, #db2777, #ea580c); }
.btn--secondary { background: transparent; color: var(--color-text); border: 1px solid var(--color-border); }
.btn--secondary:hover { border-color: var(--color-primary); }
.hero__badges { display: flex; gap: var(--space-xs); justify-content: center; flex-wrap: wrap; position: relative; }
.badge {
  display: inline-flex; align-items: center; gap: 0.375rem; padding: 0.375rem 0.875rem;
  background: var(--color-surface); backdrop-filter: var(--blur);
  border: 1px solid var(--color-border); border-radius: var(--radius-full);
  font-size: var(--fs-xs); color: var(--color-text-secondary);
}
.hero__screenshot {
  position: relative; max-width: 800px; margin: var(--space-3xl) auto 0;
  border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--color-border); box-shadow: 0 25px 50px -12px rgba(139,92,246,0.08);
}

/* Trust Bar */
.trust-bar { border-bottom: 1px solid var(--color-border); padding: var(--space-xl) 0; }
.trust-bar .container { display: flex; align-items: center; justify-content: center; gap: var(--space-2xl); flex-wrap: wrap; }
.trust-bar__item { display: flex; align-items: center; gap: var(--space-xs); font-size: var(--fs-sm); color: var(--color-text-secondary); }
.trust-bar__item strong { color: var(--color-text); }

/* Section Base */
.section { padding: var(--space-4xl) 0; }
.section__eyebrow {
  font-size: var(--fs-sm); font-weight: 600; color: var(--color-primary);
  text-transform: uppercase; letter-spacing: 0.1em; text-align: center; margin-bottom: var(--space-md);
}
.section__title { font-size: var(--fs-3xl); font-weight: 800; text-align: center; letter-spacing: -0.02em; margin-bottom: var(--space-lg); }
.section__subtitle { font-size: var(--fs-lg); color: var(--color-text-secondary); text-align: center; max-width: 560px; margin: 0 auto var(--space-3xl); }

/* Problem */
.problem-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
.problem-card {
  background: var(--color-surface); backdrop-filter: var(--blur);
  border: 1px solid var(--color-border); border-radius: var(--radius-xl);
  padding: var(--space-xl); text-align: center;
}
.problem-card__icon { font-size: 2rem; margin-bottom: var(--space-md); display: block; }
.problem-card__title { font-size: var(--fs-lg); font-weight: 700; margin-bottom: var(--space-xs); color: var(--color-warning); }
.problem-card__desc { font-size: var(--fs-sm); color: var(--color-text-secondary); }

/* Solution */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-xl); position: relative; }
.step { text-align: center; }
.step__number {
  display: inline-flex; align-items: center; justify-content: center;
  width: 3rem; height: 3rem; background: var(--gradient-primary); color: #fff;
  border-radius: 50%; font-size: var(--fs-lg); font-weight: 700; margin-bottom: var(--space-md);
}
.step__title { font-size: var(--fs-lg); font-weight: 700; margin-bottom: var(--space-xs); }
.step__desc { font-size: var(--fs-sm); color: var(--color-text-secondary); }

/* Feature Showcase */
.feature-block { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3xl); align-items: center; margin-bottom: var(--space-4xl); }
.feature-block:nth-child(even) .feature-block__image { order: 2; }
.feature-block:nth-child(even) .feature-block__text { order: 1; }
.feature-block__image {
  border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--color-border); box-shadow: 0 20px 40px -12px rgba(139,92,246,0.08);
}
.feature-block__eyebrow {
  font-size: var(--fs-sm); font-weight: 600; color: var(--color-primary);
  text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: var(--space-xs);
}
.feature-block__title { font-size: var(--fs-2xl); font-weight: 800; margin-bottom: var(--space-md); letter-spacing: -0.02em; }
.feature-block__desc { font-size: var(--fs-base); color: var(--color-text-secondary); margin-bottom: var(--space-lg); line-height: 1.7; }

/* Demo Preview */
.demo-container {
  max-width: 800px; margin: 0 auto; background: var(--color-surface); backdrop-filter: var(--blur);
  border: 1px solid var(--color-border); border-radius: var(--radius-lg);
  padding: var(--space-xl); box-shadow: 0 0 80px rgba(139,92,246,0.08);
}
.demo__bar { display: flex; gap: 6px; margin-bottom: var(--space-lg); }
.demo__dot { width: 10px; height: 10px; border-radius: 50%; background: var(--color-border); }
.demo__dot--red { background: #ef4444; }
.demo__dot--yellow { background: #f59e0b; }
.demo__dot--green { background: #10b981; }
.demo__progress { height: 6px; background: rgba(139,92,246,0.06); border-radius: 3px; margin-bottom: var(--space-lg); overflow: hidden; }
.demo__progress-fill { height: 100%; width: 0%; background: var(--gradient-primary); border-radius: 3px; animation: progress-fill 3s ease-in-out infinite; }
@keyframes progress-fill { 0% { width: 0%; } 50% { width: 85%; } 100% { width: 100%; } }
.demo__cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-md); margin-bottom: var(--space-lg); }
.demo__card { background: rgba(139,92,246,0.06); border: 1px solid var(--color-border); border-radius: var(--radius-sm); padding: var(--space-md); text-align: center; }
.demo__card-status { font-size: var(--fs-xs); font-weight: 600; margin-bottom: 0.25rem; }
.demo__card-status--pass { color: var(--color-success); }
.demo__card-status--fail { color: var(--color-danger); }
.demo__card-label { font-size: var(--fs-xs); color: var(--color-text-secondary); }
.demo__diff { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 2px; border-radius: var(--radius-sm); overflow: hidden; }
.demo__diff-col { background: rgba(139,92,246,0.06); padding: var(--space-md); font-size: var(--fs-xs); color: var(--color-text-secondary); }
.demo__diff-col-header { font-weight: 600; color: var(--color-text); margin-bottom: var(--space-xs); font-size: var(--fs-xs); }

/* Tech Specs */
.specs-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
.spec-card {
  background: var(--color-surface); backdrop-filter: var(--blur);
  border: 1px solid var(--color-border); border-radius: var(--radius-xl);
  padding: var(--space-xl); text-align: center;
}
.spec-card__icon { font-size: 1.5rem; margin-bottom: var(--space-sm); display: block; }
.spec-card__metric { font-size: var(--fs-2xl); font-weight: 800; margin-bottom: 0.25rem; }
.spec-card__label { font-size: var(--fs-sm); color: var(--color-text-secondary); }

/* Testimonials */
.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
.testimonial {
  background: var(--color-surface); backdrop-filter: var(--blur);
  border: 1px solid var(--color-border); border-radius: var(--radius-xl); padding: var(--space-xl);
}
.testimonial__quote {
  font-size: var(--fs-base); color: var(--color-text-secondary); line-height: 1.7;
  margin-bottom: var(--space-lg); position: relative; padding-left: var(--space-lg);
}
.testimonial__quote::before {
  content: '\201C'; position: absolute; left: 0; top: -0.25rem;
  font-size: 2rem; color: var(--color-primary); font-weight: 800;
}
.testimonial__author { display: flex; align-items: center; gap: var(--space-md); }
.testimonial__avatar {
  width: 40px; height: 40px; border-radius: 50%; background: var(--gradient-primary);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: var(--fs-sm); color: #fff; flex-shrink: 0;
}
.testimonial__name { font-size: var(--fs-sm); font-weight: 600; }
.testimonial__role { font-size: var(--fs-xs); color: var(--color-text-secondary); }

/* FAQ */
.faq-list { max-width: 720px; margin: 0 auto; }
.faq-list details { border-bottom: 1px solid var(--color-border); }
.faq-list summary {
  padding: var(--space-lg) 0; font-size: var(--fs-lg); font-weight: 600; cursor: pointer;
  list-style: none; display: flex; justify-content: space-between; align-items: center;
  color: var(--color-text); transition: color 0.2s;
}
.faq-list summary:hover { color: var(--color-primary); }
.faq-list summary::after {
  content: '+'; font-size: var(--fs-xl); color: var(--color-text-secondary);
  transition: transform 0.3s; flex-shrink: 0; margin-left: var(--space-md);
}
.faq-list details[open] summary::after { transform: rotate(45deg); }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list details p { padding: 0 0 var(--space-lg); color: var(--color-text-secondary); line-height: 1.7; font-size: var(--fs-base); }

/* Final CTA */
.final-cta { text-align: center; padding: var(--space-4xl) 0; background: linear-gradient(160deg, #8b5cf6, #ec4899, #f97316); position: relative; overflow: hidden; }
.final-cta::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(180deg, rgba(12,10,20,0.3) 0%, rgba(12,10,20,0.1) 50%, rgba(12,10,20,0.3) 100%);
}
.final-cta .container { position: relative; }
.final-cta__title { font-size: var(--fs-3xl); font-weight: 800; margin-bottom: var(--space-md); }
.final-cta__subtitle { font-size: var(--fs-lg); opacity: 0.9; margin-bottom: var(--space-2xl); }
.btn--white { background: #fff; color: var(--color-bg); border-radius: var(--radius-full); }
.btn--white:hover { opacity: 0.95; }
.final-cta__version { margin-top: var(--space-md); font-size: var(--fs-sm); opacity: 0.7; }
.final-cta__platforms { display: flex; gap: var(--space-md); justify-content: center; margin-top: var(--space-lg); font-size: var(--fs-xs); opacity: 0.7; }

/* Footer */
.footer { border-top: 1px solid var(--color-border); padding: var(--space-2xl) 0; }
.footer .container { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: var(--space-lg); }
.footer__brand { display: flex; align-items: center; gap: var(--space-xs); }
.footer__brand img { width: 24px; height: 24px; }
.footer__brand-name { font-weight: 600; font-size: var(--fs-sm); }
.footer__links { display: flex; gap: var(--space-xl); list-style: none; }
.footer__links a { font-size: var(--fs-sm); color: var(--color-text-secondary); transition: color 0.2s; }
.footer__links a:hover { color: var(--color-text); }
.footer__meta { font-size: var(--fs-xs); color: var(--color-text-secondary); }

/* Skip Link */
.skip-link {
  position: absolute; top: -100%; left: var(--space-md); z-index: 1000;
  padding: var(--space-sm) var(--space-md); background: #6d28d9; color: #fff;
  border-radius: var(--radius-sm); font-size: var(--fs-sm); font-weight: 600;
  transition: top 0.2s;
}
.skip-link:focus { top: var(--space-md); }

/* Product Definition */
.product-definition { padding: var(--space-2xl) 0; border-bottom: 1px solid var(--color-border); }
.product-definition__text {
  font-size: var(--fs-base); color: var(--color-text-secondary); line-height: 1.8;
  max-width: 800px; margin: 0 auto; text-align: center;
}
.product-definition__text strong { color: var(--color-text); }

/* Comparison Grid */
.comparison-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-xl); }
.comparison-card {
  background: var(--color-surface); backdrop-filter: var(--blur);
  border: 1px solid var(--color-border); border-radius: var(--radius-xl); padding: var(--space-xl);
}
.comparison-card--before { border-color: rgba(239,68,68,0.2); }
.comparison-card--after { border-color: rgba(16,185,129,0.2); }
.comparison-card__title { font-size: var(--fs-lg); font-weight: 700; margin-bottom: var(--space-md); }
.comparison-card--before .comparison-card__title { color: var(--color-danger); }
.comparison-card--after .comparison-card__title { color: var(--color-success); }
.comparison-card__list { list-style: none; display: flex; flex-direction: column; gap: var(--space-sm); }
.comparison-card__list li {
  font-size: var(--fs-sm); color: var(--color-text-secondary); padding-left: var(--space-lg); position: relative;
}
.comparison-card--before .comparison-card__list li::before { content: '\2717'; position: absolute; left: 0; color: var(--color-danger); }
.comparison-card--after .comparison-card__list li::before { content: '\2713'; position: absolute; left: 0; color: var(--color-success); }

/* Use Cases */
.use-cases-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-lg); }
.use-case {
  background: var(--color-surface); backdrop-filter: var(--blur);
  border: 1px solid var(--color-border); border-radius: var(--radius-xl); padding: var(--space-xl);
}
.use-case__title { font-size: var(--fs-lg); font-weight: 700; margin-bottom: var(--space-xs); }
.use-case__desc { font-size: var(--fs-sm); color: var(--color-text-secondary); line-height: 1.7; }

/* Getting Started */
.getting-started-steps { max-width: 640px; margin: 0 auto; display: flex; flex-direction: column; gap: var(--space-xl); }
.gs-step { display: flex; gap: var(--space-lg); align-items: flex-start; }
.gs-step__number {
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
  width: 2.5rem; height: 2.5rem; background: var(--gradient-primary); color: #fff;
  border-radius: 50%; font-size: var(--fs-base); font-weight: 700;
}
.gs-step__title { font-size: var(--fs-lg); font-weight: 700; margin-bottom: 0.25rem; }
.gs-step__desc { font-size: var(--fs-sm); color: var(--color-text-secondary); line-height: 1.7; }
.gs-step__desc a { color: var(--color-primary); text-decoration: underline; }
.gs-step__desc a:hover { color: var(--color-text); }

/* Focus styles for accessibility */
a:focus-visible, button:focus-visible, summary:focus-visible, .btn:focus-visible {
  outline: 2px solid var(--color-primary); outline-offset: 2px; border-radius: 2px;
}

/* Scroll Animations */
@supports (animation-timeline: view()) {
  .animate-on-scroll {
    opacity: 0; transform: translateY(30px);
    animation: reveal linear both; animation-timeline: view(); animation-range: entry 0% entry 30%;
  }
  @keyframes reveal { to { opacity: 1; transform: translateY(0); } }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
}

/* Tablet */
@media (max-width: 1023px) {
  .hero__title { font-size: var(--fs-3xl); }
  .feature-block { grid-template-columns: 1fr; gap: var(--space-xl); }
  .feature-block:nth-child(even) .feature-block__image,
  .feature-block:nth-child(even) .feature-block__text { order: 0; }
  .specs-grid { grid-template-columns: repeat(2, 1fr); }
  .use-cases-grid { grid-template-columns: 1fr; }
}

/* Mobile */
@media (max-width: 767px) {
  :root { --space-4xl: 3rem; }
  .hero__title { font-size: var(--fs-3xl); }
  .nav__hamburger { display: block; }
  .nav__links {
    position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(12,10,20,0.98); backdrop-filter: var(--blur);
    flex-direction: column; justify-content: center; gap: var(--space-xl);
    opacity: 0; visibility: hidden; transition: opacity 0.3s, visibility 0.3s; z-index: 200;
  }
  .nav__links a { font-size: var(--fs-xl); }
  .nav__toggle:checked ~ nav .nav__links { opacity: 1; visibility: visible; }
  .nav__toggle:checked ~ .nav__hamburger span { background: transparent; }
  .nav__toggle:checked ~ .nav__hamburger span::before { top: 0; transform: rotate(45deg); }
  .nav__toggle:checked ~ .nav__hamburger span::after { top: 0; transform: rotate(-45deg); }
  .problem-cards, .steps, .demo__cards, .demo__diff, .specs-grid, .testimonials-grid, .comparison-grid, .use-cases-grid { grid-template-columns: 1fr; }
  .footer .container { flex-direction: column; text-align: center; }
  .footer__links { justify-content: center; }
  .hero__ctas { flex-direction: column; align-items: center; }
}

/* Desktop */
@media (min-width: 1024px) { .hero__title { font-size: var(--fs-5xl); } }