:root {
  --primary: #138dfe;
  --primary-hover: #0f7ae0;
  --primary-dim: rgba(19, 141, 254, 0.12);
  --primary-glow: rgba(19, 141, 254, 0.35);
  --primary-light: rgba(19, 141, 254, 0.1);
  --secondary: #EC4899;
  --accent: #10B981;
  --green-1: #00ef86;
  --blue-1: #008cff;
  --yellow-1: #fcda00;
  --red: #ff6b6b;
  --white: #ffffff;
  --gray: #a9bdda;
  --gray-muted: #64748b;
  --light-gray: #f8f9fa;
  --dark: #0a0a0a;
  --dark-1: #0a0a0a;
  --dark-2: #141414;
  --dark-3: #1f1f1f;
  --dark-4: #2a2a2a;
  --black: #000000;
  --card-border: rgba(255, 255, 255, 0.06);
  --radius: 16px;
  --radius-sm: 10px;
  --gradient-primary: linear-gradient(to right, #10b981, #3b82f6);
  --gradient-mark: linear-gradient(-45deg, var(--green-1), var(--blue-1), #138dfe, var(--yellow-1));
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-secondary: 'Space Grotesk', sans-serif;
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  /* Typography scale — px (immune to html root) */
  --text-base: 16px;
  --text-sm: 14px;
  --text-lg: 18px;
  --text-xl: 22px;
  --text-2xl: 30px;
  --text-3xl: clamp(28px, 4.5vw, 44px);
  --text-hero: clamp(40px, 6.5vw, 72px);
}

*,
*::before,
*::after {
  -webkit-tap-highlight-color: transparent;
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body.mx-body {
  background: var(--dark-1);
  color: var(--white);
  font-family: var(--font-primary);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

body.mx-body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(19, 141, 254, 0.1), transparent),
    radial-gradient(ellipse 40% 30% at 100% 50%, rgba(59, 130, 246, 0.04), transparent);
  pointer-events: none;
  z-index: 0;
}

body.mx-body > main,
body.mx-body > .page-wrap {
  position: relative;
  z-index: 1;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-secondary);
  font-weight: 600;
  line-height: 1.15;
  color: var(--white);
  letter-spacing: -0.02em;
}

h1 { font-size: var(--text-hero); font-weight: 700; }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-xl); }

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

mark {
  background: var(--gradient-mark);
  background-size: 400% 400%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: mx_mark_gradient 15s ease infinite;
}

@keyframes mx_mark_gradient {
  0% { background-position: 0 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0 50%; }
}

.mx-container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.mx-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 32px;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 16px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}

.mx-btn--primary {
  background: linear-gradient(135deg, var(--primary) 0%, #0b6fd4 100%);
  color: var(--dark-1);
  box-shadow: 0 8px 24px var(--primary-glow);
}

.mx-btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px var(--primary-glow);
}

.mx-btn--outline {
  background: transparent;
  color: var(--primary);
  border: 1px solid rgba(19, 141, 254, 0.45);
}

.mx-btn--outline:hover {
  background: var(--primary-dim);
}