/* ============================================
   Bedigital.pk — Main CSS
   Variables, Reset, Base Typography
   ============================================ */

/* --- CSS Custom Properties (Design Tokens) --- */
:root {
  /* Colors */
  --ink: #0B1220;
  --navy-deep: #0E1B2E;
  --brand-blue: #1E73E8;
  --sky: #5FA8F5;
  --paper: #F6F8FB;
  --mist: #E4EAF2;
  --success: #2BC48A;

  /* Typography */
  --font-display: 'Archivo', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Borders */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(11, 18, 32, 0.05);
  --shadow-md: 0 4px 12px rgba(11, 18, 32, 0.08);
  --shadow-lg: 0 8px 24px rgba(11, 18, 32, 0.12);
  --shadow-glow: 0 0 20px rgba(30, 115, 232, 0.15);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Layout */
  --container-max: 1200px;
  --container-narrow: 800px;
  --nav-height: 72px;
}

/* --- Reset --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--ink);
  background-color: var(--paper);
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input,
textarea,
select {
  font: inherit;
}

/* --- Base Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--ink);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 5rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
}

h4 {
  font-size: 1.125rem;
}

p {
  margin-bottom: var(--space-md);
  color: var(--ink);
  opacity: 0.85;
}

p:last-child {
  margin-bottom: 0;
}

strong {
  font-weight: 600;
}

/* --- Utility Classes --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.container--narrow {
  max-width: var(--container-narrow);
}

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

/* --- Focus Styles (Accessibility) --- */
:focus-visible {
  outline: 2px solid var(--sky);
  outline-offset: 2px;
}

/* --- Selection --- */
::selection {
  background-color: var(--brand-blue);
  color: white;
}