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

:root {
  --ui-bg: oklch(14.1% 0.005 285.823);
  --ui-bg-elevated: oklch(21% 0.006 285.885);
  --ui-text: oklch(92% 0.004 286.32);
  --ui-text-muted: oklch(70.5% 0.015 286.067);
  --ui-text-dimmed: oklch(55.2% 0.016 285.938);
  --ui-primary: oklch(71.4% 0.203 305.504);
  --ui-primary-400: oklch(71.4% 0.203 305.504);
  --ui-primary-500: oklch(62.7% 0.265 303.9);
  --ui-primary-950: oklch(29.1% 0.149 302.717);
  --ui-secondary-400: oklch(74% 0.238 322.16);
  --ui-secondary-500: oklch(66.7% 0.295 322.15);
  --ui-info-500: oklch(62.3% 0.214 259.815);
  --neutral-400: oklch(70.8% 0 0);
  --neutral-500: oklch(55.6% 0 0);
  --neutral-600: oklch(43.9% 0 0);
  --neutral-800: oklch(26.9% 0 0);
  --neutral-950: oklch(14.5% 0 0);
  --font-sans: "Inter", ui-sans-serif, system-ui, sans-serif;
  --font-heading: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --radius: 0.375rem;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--ui-bg);
  color: var(--ui-text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

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

.gradient-text {
  background: linear-gradient(to right, var(--ui-primary-400), var(--ui-secondary-400));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.logo-text {
  background: linear-gradient(to right, var(--ui-primary-400), var(--ui-secondary-400));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-size: 0.875rem;
  font-weight: 600;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border-radius: var(--radius);
  font-weight: 500;
  font-family: inherit;
  border: none;
  cursor: pointer;
  transition: background-color 0.15s, color 0.15s, box-shadow 0.15s;
  white-space: nowrap;
}

.btn-sm {
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  gap: 0.25rem;
}

.btn-lg {
  padding: 0.5rem 0.75rem;
  font-size: 1rem;
}

.btn-primary {
  color: var(--ui-primary);
  background: color-mix(in oklch, var(--ui-primary) 15%, transparent);
  box-shadow: inset 0 0 0 1px color-mix(in oklch, var(--ui-primary) 25%, transparent);
}

.btn-primary:hover {
  background: color-mix(in oklch, var(--ui-primary) 25%, transparent);
}

.btn-primary:active {
  background: color-mix(in oklch, var(--ui-primary) 10%, transparent);
}

.btn-primary:focus-visible {
  outline: 2px solid var(--ui-primary);
  outline-offset: 2px;
}

.btn-secondary {
  color: var(--ui-text);
  background: transparent;
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background: var(--ui-bg-elevated);
}

.btn-ghost {
  color: var(--ui-primary);
  background: color-mix(in oklch, var(--ui-primary) 10%, transparent);
}

.btn-ghost:hover {
  background: color-mix(in oklch, var(--ui-primary) 15%, transparent);
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 50;
  width: 100%;
  padding: 0.75rem 1rem;
}

.nav-inner {
  position: relative;
  max-width: 56rem;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  border: 1px solid transparent;
  transition: border-color 0.3s, background-color 0.3s;
}

.nav.scrolled .nav-inner {
  border-color: color-mix(in oklch, var(--neutral-800) 50%, transparent);
  background: color-mix(in oklch, var(--neutral-950) 80%, transparent);
  backdrop-filter: blur(12px);
}

.nav-links {
  display: none;
  align-items: center;
  gap: 0.25rem;
}

.nav-links a {
  padding: 0.375rem 0.75rem;
  font-size: 0.875rem;
  color: var(--neutral-400);
  transition: color 0.15s;
}

.nav-links a:hover {
  color: #fff;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--neutral-400);
  cursor: pointer;
  padding: 0.25rem;
  transition: color 0.15s;
}

.nav-toggle:hover {
  color: #fff;
}

@media (min-width: 640px) {
  .nav-inner {
    padding: 0.5rem 1.5rem;
  }

  .nav-links {
    display: flex;
  }

  .nav-toggle {
    display: none;
  }
}

/* Hero */
.hero {
  position: relative;
  display: flex;
  min-height: 100vh;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg-base {
  pointer-events: none;
  position: absolute;
  inset: 0;
  background: var(--neutral-950);
}

.hero-glow {
  pointer-events: none;
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  will-change: transform;
}

.hero-glow--primary {
  top: -8rem;
  right: 0;
  width: 600px;
  height: 600px;
  opacity: 0.2;
  background: var(--ui-primary-500);
}

.hero-glow--secondary {
  bottom: -8rem;
  left: 0;
  width: 500px;
  height: 500px;
  opacity: 0.15;
  background: var(--ui-secondary-500);
}

.hero-glow--info {
  top: 50%;
  left: 50%;
  width: 400px;
  height: 400px;
  opacity: 0.1;
  transform: translate(-50%, -50%);
  filter: blur(100px);
  background: var(--ui-info-500);
}

.hero-dot-grid {
  pointer-events: none;
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, color-mix(in oklch, var(--neutral-400) 25%, transparent) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.35;
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 56rem;
  margin: 0 auto;
  padding: 6rem 1rem 8rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.25rem, 6vw, 4.5rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1;
  color: #fff;
}

.hero-subtitle {
  margin-top: 1.5rem;
  max-width: 42rem;
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--neutral-400);
}

.hero-platforms {
  margin-top: 1.25rem;
  max-width: 42rem;
  font-size: 0.875rem;
  color: var(--neutral-500);
}

.hero-actions {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.hero-compat {
  margin-top: 1.25rem;
  display: grid;
  gap: 0.25rem;
  font-size: clamp(1rem, 2vw, 1.125rem);
  font-weight: 500;
  color: color-mix(in oklch, var(--ui-text) 82%, transparent);
  text-shadow: 0 1px 16px color-mix(in oklch, var(--ui-primary) 30%, transparent);
}

.hero-compat p:last-child {
  font-size: 0.95em;
  color: color-mix(in oklch, var(--ui-text) 68%, transparent);
}

@media (min-width: 640px) {
  .hero-actions {
    flex-direction: row;
  }
}

.scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  color: var(--neutral-500);
  animation: scroll-hint 2s ease-in-out infinite;
}

@keyframes scroll-hint {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 0.6; }
  50% { transform: translateX(-50%) translateY(6px); opacity: 1; }
}

/* CTA Section */
.cta {
  position: relative;
  overflow: hidden;
  padding: 8rem 0;
}

.cta-bg {
  position: absolute;
  inset: 0;
}

.cta-bg-image {
  width: 100%;
  height: 100%;
  background:
    linear-gradient(135deg, oklch(25% 0.08 280) 0%, oklch(18% 0.06 300) 40%, oklch(22% 0.05 260) 100%);
  background-size: cover;
  background-position: center;
}

.cta-bg-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    var(--neutral-950) 0%,
    color-mix(in oklch, var(--neutral-950) 85%, transparent) 50%,
    color-mix(in oklch, var(--neutral-950) 70%, transparent) 100%
  );
}

.cta-glow {
  pointer-events: none;
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    color-mix(in oklch, var(--ui-primary-950) 30%, transparent) 0%,
    transparent 100%
  );
}

.cta-content {
  position: relative;
  max-width: 48rem;
  margin: 0 auto;
  padding: 0 1rem;
  text-align: center;
}

.cta-title {
  font-family: var(--font-heading);
  font-size: clamp(1.875rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.1;
  color: #fff;
}

.cta-subtitle {
  margin-top: 1rem;
  font-size: 1.125rem;
  color: var(--neutral-400);
}

.cta-actions {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}

@media (min-width: 640px) {
  .cta-actions {
    flex-direction: row;
  }
}

/* Footer */
.footer {
  border-top: 1px solid color-mix(in oklch, var(--neutral-800) 50%, transparent);
  background: var(--neutral-950);
}

.footer-inner {
  max-width: 64rem;
  margin: 0 auto;
  padding: 3rem 1rem;
}

.footer-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.footer-brand p {
  margin-top: 0.75rem;
  font-size: 0.875rem;
  line-height: 1.625;
  color: var(--neutral-500);
}

.footer-col h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: #fff;
}

.footer-col ul {
  list-style: none;
  margin-top: 0.75rem;
}

.footer-col li + li {
  margin-top: 0.5rem;
}

.footer-col a {
  font-size: 0.875rem;
  color: var(--neutral-500);
  transition: color 0.15s;
}

.footer-col a:hover {
  color: color-mix(in oklch, var(--neutral-400) 80%, white);
}

.footer-bottom {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid color-mix(in oklch, var(--neutral-800) 50%, transparent);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--neutral-600);
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

/* Animations */
.animate-in {
  animation: fade-slide-up 0.7s ease-out both;
  animation-delay: var(--delay, 0ms);
}

@keyframes fade-slide-up {
  from {
    opacity: 0;
    transform: translateY(1.5rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(2rem);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
  transition-delay: var(--delay, 0ms);
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Features */
.features {
  position: relative;
  background: var(--ui-bg);
}

.features-header-wrap {
  max-width: 80rem;
  margin: 0 auto;
  padding: 3rem 1rem 0;
}

.features-header {
  margin-bottom: 4rem;
  text-align: center;
}

.features-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  border: 1px solid color-mix(in oklch, var(--neutral-800) 100%, transparent);
  background: color-mix(in oklch, var(--neutral-900) 50%, transparent);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--neutral-400);
  backdrop-filter: blur(4px);
}

.features-label-dot {
  width: 0.375rem;
  height: 0.375rem;
  border-radius: 50%;
  background: var(--ui-primary-400);
}

.features-title {
  margin-top: 1rem;
  font-family: var(--font-heading);
  font-size: clamp(2.25rem, 5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  color: #fff;
}

.features-subtitle {
  margin-top: 0.75rem;
  font-size: 1.125rem;
  color: var(--neutral-400);
}

.feature-category {
  position: relative;
  scroll-margin-top: 6rem;
  padding: 3rem 0;
}

.feature-category-inner {
  position: relative;
  max-width: 80rem;
  margin: 0 auto;
  padding: 0 1rem;
}

.feature-category-glow {
  pointer-events: none;
  position: absolute;
  top: 0;
  left: 50%;
  width: 800px;
  height: 400px;
  transform: translateX(-50%);
  border-radius: 50%;
  opacity: 0.1;
  filter: blur(120px);
}

.feature-category-glow--red { background: oklch(63.7% 0.237 25.331); }
.feature-category-glow--amber { background: oklch(76.9% 0.188 70.08); }
.feature-category-glow--emerald { background: oklch(69.6% 0.17 162.48); }
.feature-category-glow--violet { background: oklch(60.6% 0.25 292.717); }
.feature-category-glow--blue { background: oklch(62.3% 0.214 259.815); }
.feature-category-glow--orange { background: oklch(70.5% 0.213 47.604); }
.feature-category-glow--cyan { background: oklch(71.5% 0.143 215.221); }
.feature-category-glow--purple { background: oklch(62.7% 0.265 303.9); }

.feature-category-header {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.feature-category-header h2 {
  font-size: clamp(1.875rem, 3vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.2;
  color: #fff;
}

.feature-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 1rem;
  font-weight: 500;
}

.feature-badge--red { background: color-mix(in oklch, oklch(63.7% 0.237 25.331) 15%, transparent); color: oklch(70.4% 0.191 22.216); }
.feature-badge--amber { background: color-mix(in oklch, oklch(76.9% 0.188 70.08) 15%, transparent); color: oklch(82.8% 0.189 84.429); }
.feature-badge--emerald { background: color-mix(in oklch, oklch(69.6% 0.17 162.48) 15%, transparent); color: oklch(76.5% 0.177 163.223); }
.feature-badge--violet { background: color-mix(in oklch, oklch(60.6% 0.25 292.717) 15%, transparent); color: oklch(70.2% 0.183 293.541); }
.feature-badge--blue { background: color-mix(in oklch, oklch(62.3% 0.214 259.815) 15%, transparent); color: oklch(70.7% 0.165 254.624); }
.feature-badge--orange { background: color-mix(in oklch, oklch(70.5% 0.213 47.604) 15%, transparent); color: oklch(75% 0.183 55.934); }
.feature-badge--cyan { background: color-mix(in oklch, oklch(71.5% 0.143 215.221) 15%, transparent); color: oklch(78.9% 0.154 211.53); }
.feature-badge--purple { background: color-mix(in oklch, oklch(62.7% 0.265 303.9) 15%, transparent); color: oklch(71.4% 0.203 305.504); }

.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .feature-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  border-radius: 1rem;
  border: 1px solid color-mix(in oklch, var(--neutral-800) 60%, transparent);
  background: color-mix(in oklch, var(--neutral-900) 40%, transparent);
  backdrop-filter: blur(4px);
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--neutral-800);
}

.feature-card--red:hover { box-shadow: 0 0 0 1px color-mix(in oklch, oklch(63.7% 0.237 25.331) 30%, transparent); }
.feature-card--amber:hover { box-shadow: 0 0 0 1px color-mix(in oklch, oklch(76.9% 0.188 70.08) 30%, transparent); }
.feature-card--emerald:hover { box-shadow: 0 0 0 1px color-mix(in oklch, oklch(69.6% 0.17 162.48) 30%, transparent); }
.feature-card--violet:hover { box-shadow: 0 0 0 1px color-mix(in oklch, oklch(60.6% 0.25 292.717) 30%, transparent); }
.feature-card--blue:hover { box-shadow: 0 0 0 1px color-mix(in oklch, oklch(62.3% 0.214 259.815) 30%, transparent); }
.feature-card--orange:hover { box-shadow: 0 0 0 1px color-mix(in oklch, oklch(70.5% 0.213 47.604) 30%, transparent); }
.feature-card--cyan:hover { box-shadow: 0 0 0 1px color-mix(in oklch, oklch(71.5% 0.143 215.221) 30%, transparent); }
.feature-card--purple:hover { box-shadow: 0 0 0 1px color-mix(in oklch, oklch(62.7% 0.265 303.9) 30%, transparent); }

.feature-card-media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--neutral-950);
}

.feature-card-media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}

.feature-card:hover .feature-card-media video {
  transform: scale(1.05);
}

.feature-card-media-overlay {
  pointer-events: none;
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, color-mix(in oklch, var(--neutral-950) 80%, transparent), transparent 50%, transparent);
}

.feature-card-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4px;
  background: color-mix(in oklch, var(--neutral-950) 60%, transparent);
}

.feature-card-progress-bar {
  height: 100%;
  width: 0;
  background: linear-gradient(to right, var(--ui-primary-400), var(--ui-secondary-400));
  transition: width 0.1s linear;
}

.feature-card-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.25rem;
}

.feature-card-body--text-only {
  min-height: 8rem;
  justify-content: center;
}

.feature-card-body h3 {
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
}

.feature-card-body p {
  font-size: 0.875rem;
  line-height: 1.625;
  color: var(--neutral-400);
}

/* Mobile nav menu */
.nav-mobile-open .nav-links {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 1rem;
  right: 1rem;
  padding: 1rem;
  border-radius: 0.75rem;
  background: color-mix(in oklch, var(--neutral-950) 95%, transparent);
  border: 1px solid color-mix(in oklch, var(--neutral-800) 50%, transparent);
  backdrop-filter: blur(12px);
}

@media (min-width: 640px) {
  .nav-mobile-open .nav-links {
    position: static;
    flex-direction: row;
    padding: 0;
    border: none;
    background: transparent;
    backdrop-filter: none;
  }
}