* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-text);
  color: var(--text);
  background: radial-gradient(circle at 20% 10%, #0d1930 0%, var(--bg) 48%, #040507 100%);
  line-height: 1.5;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: var(--container); margin: 0 auto; }
.section { padding: 88px 0; }
.section--dark { background: linear-gradient(180deg, rgba(5, 8, 15, 0.86), rgba(4, 7, 11, 1)); }
.section__head { margin-bottom: 28px; max-width: 700px; }
.section__head--full { max-width: none; }
.section__head h2 { font-family: var(--font-head); font-size: clamp(30px, 4vw, 48px); margin: 0 0 8px; }
.section__head p { margin: 0; color: var(--text-muted); }
h1 { font-family: var(--font-head); font-size: clamp(36px, 6vw, 72px); margin: 8px 0 16px; line-height: 1.04; }
h3 { font-family: var(--font-head); margin: 0 0 12px; }
.glass {
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  border-radius: 999px;
  padding: 0 22px;
  border: 1px solid transparent;
  font-weight: 700;
  transition: 0.2s ease;
  cursor: pointer;
}
.btn--primary { background: var(--accent); color: #fff; }
.btn--primary:hover { background: var(--accent-hover); }
.btn--ghost {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--line);
  color: #eef1fa;
}
.btn--ghost:hover { border-color: #4e5f7f; background: rgba(255, 255, 255, 0.08); }
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  z-index: 9999;
  background: var(--accent);
}