/* ==========================================================================
   Base: reset, typography, accessibility primitives. Logical properties only.
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-block-start: calc(var(--header-h) + var(--space-4));
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: var(--leading-body);
  color: var(--text);
  background: var(--bg);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 var(--space-4);
  font-family: var(--font-display);
  font-weight: 700;
  line-height: var(--leading-tight);
  color: var(--heading);
  letter-spacing: -0.015em;
  text-wrap: balance;
}
:root[lang="ar"] :is(h1, h2, h3, h4, h5, h6) { letter-spacing: 0; }

h1 { font-size: var(--fs-3xl); font-weight: 800; }
h2 { font-size: var(--fs-2xl); }
h3 { font-size: var(--fs-lg); }

p { margin: 0 0 var(--space-4); text-wrap: pretty; }
img, svg, video { display: block; max-inline-size: 100%; block-size: auto; }
ul[role="list"], ol[role="list"] { list-style: none; margin: 0; padding: 0; }

a {
  color: var(--link);
  text-decoration-thickness: 1px;
  text-underline-offset: .2em;
  transition: color var(--dur) var(--ease);
}
a:hover { color: var(--link-hover); }

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

:focus-visible { outline: var(--focus-ring); outline-offset: var(--focus-offset); border-radius: var(--radius-s); }
:focus:not(:focus-visible) { outline: none; }
main:focus { outline: none; }

::selection { background: var(--color-navy); color: var(--color-white); }

/* ---- Utilities ----------------------------------------------------------- */
.container {
  inline-size: 100%;
  max-inline-size: var(--container);
  margin-inline: auto;
  padding-inline: clamp(var(--space-4), 4vw, var(--space-8));
}

.sr-only {
  position: absolute !important;
  inline-size: 1px; block-size: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute;
  inset-inline-start: var(--space-4);
  inset-block-start: var(--space-4);
  z-index: 1000;
  padding: var(--space-3) var(--space-5);
  background: var(--color-navy);
  color: var(--color-white);
  font-weight: 600;
  border-radius: var(--radius-s);
  transform: translateY(-200%);
  transition: transform var(--dur) var(--ease);
}
.skip-link:focus { transform: translateY(0); color: var(--color-white); }

.icon { width: 1.25em; height: 1.25em; inline-size: 1.25em; block-size: 1.25em; max-width: 100%; max-height: 100%; flex: none; display: inline-block; vertical-align: middle; }
/* Directional icons flip in RTL; logos/photos never do (§4.6) */
[dir="rtl"] .icon--dir { transform: scaleX(-1); }

/* Development placeholder marker - hidden in production */
.ph,
.ph--on-dark {
  display: none !important;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}