:root {
  --bg: #000000;
  --bg-elev: #0b0b0b;
  --text: #e6e6e6;
  --muted: #a0a0a0;
  --primary: #6ea8fe;
  --primary-contrast: #0a0a0a;
  --border: #222222;
  --card: #0f0f10;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
    Ubuntu, Cantarell, "Fira Sans", "Droid Sans", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
}

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

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}

.header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: saturate(150%) blur(8px);
  background: rgba(0, 0, 0, 0.6);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  text-decoration: none;
}

.brand img {
  height: 36px;
}

.brand-name {
  font-weight: 600;
  letter-spacing: 0.2px;
}

.nav a {
  color: var(--text);
  text-decoration: none;
  opacity: 0.9;
  padding: 10px 12px;
  border-radius: 8px;
}

.nav a:hover {
  background: var(--bg-elev);
}

main {
  padding: 56px 0;
}

.hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

@media (min-width: 900px) {
  .hero {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
  }
}

.hero h1 {
  font-size: 40px;
  line-height: 1.15;
  margin: 0 0 12px 0;
}

.hero p {
  color: var(--muted);
  margin: 0 0 24px 0;
}

.cta-row {
  display: flex;
  align-items: center;
  gap: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  background: var(--primary);
  color: #fff;
  border: 0;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
  transition: transform 0.08s ease, filter 0.2s ease;
}

.button:hover {
  filter: brightness(1.05);
}

.button:active {
  transform: translateY(1px);
}

.section {
  margin-top: 40px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px;
}

.section h2 {
  margin-top: 0;
}

.footer {
  margin-top: 56px;
  border-top: 1px solid var(--border);
  padding: 28px 0;
  color: var(--muted);
}

.footer a {
  color: var(--text);
  text-decoration: none;
}