/* ==========================================================================
   Brand Promoter 3x (B3) — Theme Variables, Reset & Base Typography
   Palette: Matte Black (#111215) & Pure White (#FFFFFF)
   ========================================================================== */

:root {
  --bg-primary: #111215;
  --bg-surface: #191B1F;
  --bg-surface-elevated: #21242B;
  --bg-glass: rgba(17, 18, 21, 0.92);
  --border-subtle: #23262D;
  --border-light: rgba(255, 255, 255, 0.12);
  --border-focus: #FFFFFF;

  --text-primary: #FFFFFF;
  --text-secondary: #A0A5B1;
  --text-muted: #666C7A;

  --accent-white: #FFFFFF;
  --accent-glow: rgba(255, 255, 255, 0.08);
  --accent-success: #10B981;

  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  --container-max: 1240px;
}

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

html {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  scroll-behavior: smooth;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-secondary);
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 4.5vw, 3.5rem); }
h2 { font-size: clamp(1.65rem, 3.2vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 2.2vw, 1.65rem); }
p { margin-bottom: 1rem; }