/* ============================================================
   base.css — reset حديث + أساسيات الطباعة والتخطيط
   كل الاتجاهات بـ logical properties → RTL/LTR بلا كسر.
   ============================================================ */

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

* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--topbar-h) + 16px);
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-md);
  line-height: var(--leading-body);
  color: var(--color-text);
  background: var(--color-background);
  min-height: 100dvh;
  -webkit-font-smoothing: antialiased;
}

html[lang="ar"] body { font-family: var(--font-ar); letter-spacing: 0; }

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

input, button, textarea, select { font: inherit; color: inherit; }

h1, h2, h3, h4 { line-height: var(--leading-tight); font-weight: 700; overflow-wrap: break-word; }
h1 { font-size: var(--text-3xl); }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-xl); }
p  { overflow-wrap: break-word; }

a { color: var(--color-primary); text-underline-offset: 3px; }
a:hover { color: var(--color-primary-light); }

ul[class], ol[class] { list-style: none; padding: 0; }

button { cursor: pointer; }
button:disabled, [aria-disabled="true"] { cursor: not-allowed; }

:where(a, button, input, select, textarea, summary, [tabindex]):focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-sm);
}

::selection { background: var(--color-primary); color: var(--color-on-primary); }

/* --- Layout primitives --- */
.container { width: min(100% - 2 * var(--space-5), var(--container)); margin-inline: auto; }
.content   { width: min(100% - 2 * var(--space-5), var(--content));   margin-inline: auto; }

.section { padding-block: var(--space-8); }
.section--tight { padding-block: var(--space-6); }

.stack > * + * { margin-block-start: var(--space-4); }
.row  { display: flex; gap: var(--space-3); align-items: center; }
.row--wrap { flex-wrap: wrap; }
.spread { display: flex; justify-content: space-between; align-items: center; gap: var(--space-3); }
.grow { flex: 1 1 auto; min-width: 0; }

.text-muted   { color: var(--color-text-muted); }
.text-faint   { color: var(--color-text-faint); }
.text-sm      { font-size: var(--text-sm); }
.text-center  { text-align: center; }
.mt-2 { margin-block-start: var(--space-2); }
.mt-4 { margin-block-start: var(--space-4); }
.mt-6 { margin-block-start: var(--space-6); }
.mb-4 { margin-block-end:  var(--space-4); }

/* --- Bootstrap: تعطيل مؤقت للانتقالات (يزيله theme.js بعد أول رسم) --- */
.no-transitions *, .no-transitions *::before, .no-transitions *::after {
  transition: none !important; animation: none !important;
}

/* --- Accessibility helpers --- */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0;
  margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; inset-inline-start: var(--space-4); top: var(--space-2);
  transform: translateY(-200%);
  background: var(--color-primary); color: var(--color-on-primary);
  padding: var(--space-2) var(--space-4); border-radius: var(--radius-sm);
  z-index: 100; transition: transform var(--transition-fast);
}
.skip-link:focus { transform: translateY(0); }

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

/* --- Print: لا حاجة لخلفيات --- */
@media print {
  body { background: #fff; color: #000; }
}