/* Google Fonts: Alexandria & IBM Plex Sans Arabic */
@import url('https://fonts.googleapis.com/css2?family=Alexandria:wght@400;500;600;700;800&family=IBM+Plex+Sans+Arabic:wght@300;400;500;600;700&display=swap');

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

html {
  font-size: 16px;
  direction: rtl;
  text-align: right;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--color-bg);
  color: var(--color-charcoal);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-petrol);
  font-weight: 700;
  line-height: 1.3;
  margin-block-end: var(--space-3);
}

h1 { font-size: var(--text-4xl); font-weight: 800; letter-spacing: -0.02em; }
h2 { font-size: var(--text-3xl); font-weight: 700; }
h3 { font-size: var(--text-2xl); font-weight: 600; }
h4 { font-size: var(--text-xl); font-weight: 600; }
h5 { font-size: var(--text-lg); font-weight: 600; }
h6 { font-size: var(--text-base); font-weight: 600; }

p {
  margin-block-end: var(--space-4);
  max-width: 75ch;
}

/* Links */
a {
  color: var(--color-petrol);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-copper);
}

/* Media Elements */
img, picture, svg, video {
  display: block;
  max-width: 100%;
  height: auto;
}

/* Accessibility Focus States */
:focus-visible {
  outline: 2px solid var(--color-copper);
  outline-offset: 3px;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-copper);
  outline-offset: 2px;
}

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

/* Mixed Content & Numbers */
bdi {
  direction: ltr;
  unicode-bidi: isolate;
}

.num, .price-val, .model-code {
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum";
}

/* Containers */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

.container-narrow {
  width: 100%;
  max-width: var(--container-narrow);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

/* Skip to Content Link */
.skip-link {
  position: absolute;
  top: -100px;
  inset-inline-start: var(--space-4);
  background: var(--color-copper);
  color: #ffffff;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-sm);
  z-index: 1000;
  font-weight: 600;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-4);
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}