:root {
  --bg: #0d0d10;
  --panel: #17171d;
  --panel-2: #101017;
  --text: #f4f7fb;
  --muted: #bcc5d6;
  --primary: #5f2da8;
  --accent: #19dfff;
  --border: rgba(255, 255, 255, 0.08);
  --max-width: 1120px;
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

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

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

.container {
  width: min(var(--max-width), 92%);
  margin: 0 auto;
}

.narrow {
  max-width: 760px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(13, 13, 16, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 16px 0;
}

.logo-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-img {
  width: 42px;
  height: 42px;
  object-fit: contain;
}

.logo-text {
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.4px;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

nav a {
  color: var(--muted);
}

nav a:hover {
  color: var(--accent);
}

.hero {
  padding: 110px 0 90px;
  background:
    linear-gradient(rgba(13, 13, 16, 0.65), rgba(13, 13, 16, 0.78)),
    url("images/hero-banner.jpg") center/cover no-repeat;
}

.hero-content {
  max-width: 680px;
}

.eyebrow {
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.4px;
  margin-bottom: 16px;
}

h1 {
  font-size: clamp(2.4rem, 5vw, 4.5rem);
  line-height: 1.08;
  max-width: 900px;
  margin: 0 0 18px;
}

.hero-text {
  max-width: 720px;
  color: var(--muted);
  font-size: 1.08rem;
  margin-bottom: 28px;
}

.section {
  padding: 72px 0;
}

.section h2,
.cta h2 {
  font-size: 2rem;
  margin: 0 0 16px;
}

.section p,
.cta p {
  color: var(--muted);
}

.button-group {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button-group.center {
  justify-content: center;
}

.btn {
  display: inline-block;
  padding: 13px 22px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.2s ease, opacity 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--accent);
  color: #041118;
}

.btn-secondary {
  border: 1px solid var(--accent);
  color: var(--text);
  background: transparent;
}

.btn-secondary:hover {
  background: rgba(25, 223, 255, 0.08);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.22);
}

.card h3 {
  margin-top: 0;
  margin-bottom: 12px;
}

.card p {
  margin-bottom: 16px;
}

.card a {
  color: var(--accent);
  font-weight: 700;
}

.split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  align-items: center;
}

.about-video {
  width: 100%;
}

.about-video iframe {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 0;
  border-radius: 22px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  background: #000;
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 20px;
}

.feature-list div {
  background: var(--panel-2);
  border-left: 4px solid var(--accent);
  border-radius: 12px;
  padding: 18px;
  color: var(--muted);
}

.cta {
  padding: 84px 0;
  text-align: center;
  background: linear-gradient(135deg, rgba(95, 45, 168, 0.24), rgba(25, 223, 255, 0.08));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.site-footer {
  padding: 28px 0 40px;
  text-align: center;
  color: var(--muted);
}

@media (max-width: 980px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

@media (max-width: 640px) {
  .nav {
    flex-direction: column;
    align-items: flex-start;
  }

  .card-grid,
  .feature-list {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 90px 0 72px;
  }
}
.video-wrapper {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: 18px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  margin-top: 2rem;
}

.video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-section .section-heading {
  max-width: 850px;
  margin: 0 auto;
  text-align: center;
}