:root {
  /* ── Premium Color Palette ── */
  --bg-start: #060b18;
  --bg-end: #0e1628;
  --bg-mesh-1: rgba(99, 102, 241, 0.12);
  --bg-mesh-2: rgba(59, 130, 246, 0.08);

  --surface: #ffffff;
  --surface-raised: #fafbfd;
  --surface-muted: #f1f5f9;
  --card-base: #ffffff;

  --accent-blue: #2563eb;
  --accent-light: #3b82f6;
  --accent-indigo: #6366f1;
  --accent-violet: #8b5cf6;
  --highlight-yellow: #fbbf24;
  --soft-green: #10b981;
  --soft-rose: #f43f5e;

  --text-primary: #0f172a;
  --text-secondary: #64748b;
  --text-tertiary: #94a3b8;
  --white: #ffffff;

  /* ── Radii ── */
  --radius-xs: 8px;
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  /* ── Spacing ── */
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
  --space-6: 64px;
  --space-7: 96px;
  --space-8: 120px;

  /* ── Container ── */
  --container-width: min(1280px, 92vw);
  --grid-gutter: 32px;

  /* ── Shadows ── */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 12px 32px -8px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 24px 48px -12px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 32px 64px -16px rgba(0, 0, 0, 0.16);

  --neu-dark: 0 20px 40px -12px rgba(0, 0, 0, 0.08);
  --neu-light: 0 0 0 1px rgba(0, 0, 0, 0.03);
  --clay-shadow: 0 20px 40px rgba(37, 99, 235, 0.15);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
  --focus-ring: 0 0 0 3px rgba(59, 130, 246, 0.45);
  --glow-blue: 0 0 60px rgba(59, 130, 246, 0.2);

  /* ── Easing ── */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: "Outfit", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--surface);
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 16px;
  overflow-x: hidden;
}

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

h1, h2, h3, h4, p {
  margin: 0;
}

h2 {
  letter-spacing: -0.02em;
}

h3 {
  letter-spacing: -0.01em;
}

a {
  color: inherit;
  text-decoration-skip-ink: auto;
}

button {
  font: inherit;
}

::selection {
  background: rgba(59, 130, 246, 0.2);
  color: var(--text-primary);
}

.skip-link {
  position: absolute;
  left: -100vw;
  top: var(--space-2);
  z-index: 1000;
  background: var(--white);
  color: var(--text-primary);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3);
  font-weight: 600;
}

.skip-link:focus {
  left: var(--space-2);
  outline: none;
  box-shadow: var(--focus-ring);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}