/* ==========================================================================
   Zakhrafay — Clean Sky foundation (Chunk 1)
   Arabic-first, RTL, mobile-first. No gradients, no gaming aesthetics,
   no heavy animation. Logical properties only (no left/right) so RTL
   works by flipping `dir`, not by overrides.
   ========================================================================== */

/* ---------- Tokens ---------- */
:root {
  --zh-navy: #14375D;
  --zh-blue: #1669E8;
  --zh-blue-dark: #0F52BC;
  --zh-light-blue: #EAF3FF;
  --zh-bg: #F3F8FF;
  --zh-card: #FFFFFF;
  --zh-border: #DBE8F8;
  --zh-mint: #35CDB9;
  --zh-mint-dark: #1FA89A;
  --zh-ink: #12263F;
  --zh-muted: #5B6E87;
  --zh-muted-on-navy: #C4D6EE;
  --zh-focus: #1669E8;
  --zh-danger: #C0392B;

  /* Type — Cairo headings, Tajawal body, Unicode-symbol fallbacks */
  --zh-font-heading: "Cairo", "Tajawal", "Segoe UI", system-ui, -apple-system, "Noto Sans Arabic", sans-serif;
  --zh-font-body: "Tajawal", "Cairo", "Segoe UI", system-ui, -apple-system, "Noto Sans Arabic", sans-serif;
  --zh-font-decorative: "Segoe UI Symbol", "Noto Sans Symbols 2", "Symbola", "Quivira", "Tajawal", sans-serif;
  --zh-font-latin: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;

  /* Spacing scale (4px base) */
  --zh-space-1: 0.25rem;
  --zh-space-2: 0.5rem;
  --zh-space-3: 0.75rem;
  --zh-space-4: 1rem;
  --zh-space-5: 1.25rem;
  --zh-space-6: 1.5rem;
  --zh-space-8: 2rem;
  --zh-space-10: 2.5rem;
  --zh-space-12: 3rem;

  /* Radii — consistent everywhere */
  --zh-radius-sm: 8px;
  --zh-radius-md: 12px;
  --zh-radius-lg: 16px;
  --zh-radius-pill: 999px;

  /* Layout */
  --zh-container: 1160px;
  --zh-container-narrow: 820px;

  /* Motion — subtle only */
  --zh-transition: 160ms ease;
  --zh-shadow-sm: 0 1px 2px rgba(20, 55, 93, 0.06);
  --zh-shadow-md: 0 8px 24px rgba(20, 55, 93, 0.08);
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--zh-bg);
  color: var(--zh-ink);
  font-family: var(--zh-font-body);
  font-size: 1rem;
  line-height: 1.85; /* comfortable Arabic line-height */
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* Headings — Cairo */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--zh-font-heading);
  color: var(--zh-navy);
  line-height: 1.5;
  margin-block: 0 0.5em;
  font-weight: 800;
}
h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h2 { font-size: clamp(1.375rem, 3vw, 1.875rem); }
h3 { font-size: 1.25rem; }

p { margin-block: 0 1em; }

a { color: var(--zh-blue); text-underline-offset: 3px; }
a:hover { color: var(--zh-blue-dark); }

/* Visible, consistent focus — keyboard accessible */
:focus-visible {
  outline: 3px solid var(--zh-focus);
  outline-offset: 2px;
  border-radius: 4px;
}

img, svg, video { max-inline-size: 100%; block-size: auto; }

/* LTR islands inside RTL: URLs, English names, code */
[dir="ltr"], .zh-ltr, .zh-url {
  direction: ltr;
  unicode-bidi: isolate;
  text-align: start;
}
.zh-url { font-family: var(--zh-font-latin); word-break: break-all; }

/* Decorative-character text (Chunk 2 generators will use this) */
.zh-decorative {
  font-family: var(--zh-font-decorative);
  letter-spacing: 0;
}

/* Screen-reader only */
.zh-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 */
.zh-skip-link {
  position: absolute; inset-inline-start: 1rem; inset-block-start: -100px;
  background: var(--zh-navy); color: #fff; padding: 0.6rem 1rem;
  border-radius: var(--zh-radius-sm); z-index: 200; text-decoration: none;
}
.zh-skip-link:focus { inset-block-start: 1rem; color: #fff; }

/* ---------- Layout ---------- */
.zh-container {
  inline-size: min(100% - 2rem, var(--zh-container));
  margin-inline: auto;
}
.zh-container--narrow { inline-size: min(100% - 2rem, var(--zh-container-narrow)); }

.zh-site { display: flex; flex-direction: column; min-block-size: 100vh; }
.zh-main { flex: 1; padding-block: var(--zh-space-8) var(--zh-space-12); }
.zh-main > :first-child { margin-block-start: 0; }

/* ---------- Buttons (reusable) ---------- */
.zh-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  font-family: var(--zh-font-heading); font-weight: 700; font-size: 1rem;
  line-height: 1.4; text-decoration: none; cursor: pointer;
  padding: 0.7rem 1.4rem; border-radius: var(--zh-radius-sm);
  border: 1.5px solid transparent;
  transition: background var(--zh-transition), color var(--zh-transition),
    border-color var(--zh-transition), box-shadow var(--zh-transition);
  min-block-size: 44px; /* touch target */
}
.zh-btn--primary { background: var(--zh-blue); color: #fff; border-color: var(--zh-blue); }
.zh-btn--primary:hover { background: var(--zh-blue-dark); border-color: var(--zh-blue-dark); color: #fff; }
.zh-btn--secondary { background: var(--zh-card); color: var(--zh-navy); border-color: var(--zh-border); }
.zh-btn--secondary:hover { border-color: var(--zh-blue); color: var(--zh-blue); }
.zh-btn--ghost { background: transparent; color: var(--zh-navy); }
.zh-btn--ghost:hover { background: var(--zh-light-blue); }
.zh-btn--mint { background: var(--zh-mint); color: #06281F; border-color: var(--zh-mint); }
.zh-btn--mint:hover { background: var(--zh-mint-dark); border-color: var(--zh-mint-dark); color: #fff; }
.zh-btn[aria-disabled="true"], .zh-btn.is-pending {
  opacity: 0.55; cursor: not-allowed; pointer-events: none;
}

/* ---------- Cards (reusable) ---------- */
.zh-card {
  background: var(--zh-card);
  border: 1px solid var(--zh-border);
  border-radius: var(--zh-radius-md);
  box-shadow: var(--zh-shadow-sm);
  padding: var(--zh-space-6);
}
.zh-card--flat { box-shadow: none; }

/* Pending / not-yet-created link treatment — never a broken link */
.zh-pending, a[aria-disabled="true"] {
  color: var(--zh-muted);
  cursor: not-allowed;
  text-decoration: none;
  pointer-events: none;
}
.zh-pending-badge {
  display: inline-block; font-size: 0.75rem; font-weight: 700;
  background: var(--zh-light-blue); color: var(--zh-navy);
  border: 1px solid var(--zh-border);
  border-radius: var(--zh-radius-pill);
  padding: 0.15rem 0.6rem; margin-inline-start: 0.5rem;
  vertical-align: middle;
}

/* ---------- Header ---------- */
.zh-header {
  background: var(--zh-card);
  border-block-end: 1px solid var(--zh-border);
  position: sticky; inset-block-start: 0; z-index: 100;
}
/* Chunk 2: improved header spacing + mobile alignment. */
.zh-header__inner {
  display: flex; align-items: center; gap: var(--zh-space-4);
  min-block-size: 72px; padding-block: 0.5rem;
}
@media (max-width: 640px) {
  .zh-header__inner { min-block-size: 60px; gap: 0.6rem; padding-block: 0.4rem; }
  .zh-brand__mark { inline-size: 38px; block-size: 38px; }
  .zh-brand__wordmark { font-size: 1.3rem; }
  .zh-brand { gap: 0.6rem; }
}
.zh-brand { display: flex; align-items: center; gap: 0.75rem; text-decoration: none; flex-shrink: 0; }
.zh-brand:hover { text-decoration: none; }
/* Text-based logo v1.2.2: inline SVG ornamental mark + gradient wordmark.
   No image file. Mark uses Clean Sky navy/blue/light-blue only. */
.zh-brand__mark {
  display: grid; place-items: center; flex-shrink: 0;
  inline-size: 46px; block-size: 46px; background: transparent;
}
.zh-brand__mark svg { inline-size: 100%; block-size: 100%; display: block; }
.zh-brand__text { display: flex; flex-direction: column; line-height: 1.3; }
.zh-brand__name {
  display: flex; align-items: baseline; gap: 0.45rem;
  font-family: var(--zh-font-heading); font-weight: 800; font-size: 1.35rem;
  color: var(--zh-navy); letter-spacing: 0;
}
.zh-brand__wordmark {
  font-family: var(--zh-font-latin); font-weight: 800; font-size: 1.55rem;
  letter-spacing: -0.02em; line-height: 1.1; color: var(--zh-navy);
  background: linear-gradient(90deg, #14375D 0%, #1669E8 100%);
  -webkit-background-clip: text; background-clip: text;
}
@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .zh-brand__wordmark { color: transparent; }
}
.zh-brand__arabic { font-family: var(--zh-font-heading); font-weight: 800; font-size: 1.1rem; color: var(--zh-navy); }
.zh-brand__subtitle { font-size: 0.85rem; color: var(--zh-muted); font-weight: 500; }

/* Primary nav — desktop */
.zh-nav { margin-inline-start: auto; }
.zh-nav__list {
  display: flex; align-items: center; gap: 0.25rem;
  list-style: none; margin: 0; padding: 0;
}
.zh-nav__link, .zh-nav__pending {
  display: inline-flex; align-items: center;
  padding: 0.55rem 0.85rem; border-radius: var(--zh-radius-sm);
  font-family: var(--zh-font-heading); font-weight: 700; font-size: 0.95rem;
  color: var(--zh-navy); text-decoration: none;
  transition: background var(--zh-transition), color var(--zh-transition);
}
.zh-nav__link:hover, .zh-nav__link:focus-visible { background: var(--zh-light-blue); color: var(--zh-blue); }
.zh-nav__link[aria-current="page"] { background: var(--zh-light-blue); color: var(--zh-blue); }
.zh-nav__pending { color: var(--zh-muted); cursor: not-allowed; }

/* Mobile toggle */
.zh-nav-toggle {
  display: none; margin-inline-start: auto;
  inline-size: 44px; block-size: 44px;
  align-items: center; justify-content: center;
  background: var(--zh-card); border: 1px solid var(--zh-border);
  border-radius: var(--zh-radius-sm); color: var(--zh-navy); cursor: pointer;
}
.zh-nav-toggle:hover { border-color: var(--zh-blue); }
.zh-nav-toggle__icon { font-size: 1.25rem; line-height: 1; }

/* ---------- Footer ---------- */
.zh-footer {
  background: var(--zh-navy); color: #fff;
  padding-block: var(--zh-space-10) var(--zh-space-6);
  margin-block-start: auto;
}
.zh-footer__grid {
  display: grid; gap: var(--zh-space-8);
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
}
.zh-footer__brand-name { font-family: var(--zh-font-heading); font-size: 1.35rem; font-weight: 800; color: #fff; }
.zh-footer__tagline { color: var(--zh-muted-on-navy); margin-block-start: 0.5rem; }
.zh-footer__heading {
  font-family: var(--zh-font-heading); font-size: 1rem; font-weight: 700;
  color: #fff; margin-block-end: 0.9rem;
}
.zh-footer__list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.55rem; }
.zh-footer__list a { color: var(--zh-muted-on-navy); text-decoration: none; }
.zh-footer__list a:hover { color: #fff; text-decoration: underline; }
.zh-footer__list .zh-pending { color: #8AA3C2; }
.zh-footer__bottom {
  margin-block-start: var(--zh-space-8);
  padding-block-start: var(--zh-space-4);
  border-block-start: 1px solid rgba(255, 255, 255, 0.15);
  display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem;
  align-items: center; justify-content: space-between;
  color: var(--zh-muted-on-navy); font-size: 0.9rem;
}
.zh-footer__legal { display: flex; flex-wrap: wrap; gap: 0.5rem 1.25rem; list-style: none; margin: 0; padding: 0; }
.zh-footer__legal a { color: var(--zh-muted-on-navy); text-decoration: none; }
.zh-footer__legal a:hover { color: #fff; text-decoration: underline; }

/* ---------- Foundation notice (Chunk 1 only, admin-visible) ---------- */
.zh-foundation-notice {
  background: var(--zh-light-blue);
  border: 1px solid var(--zh-border);
  border-radius: var(--zh-radius-md);
  padding: var(--zh-space-6);
}
.zh-foundation-notice h1 { margin-block-end: 0.35em; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .zh-footer__grid { grid-template-columns: 1fr 1fr; }
  .zh-nav-toggle { display: inline-flex; }
  .zh-nav {
    position: absolute; inset-inline: 0; inset-block-start: 100%;
    background: var(--zh-card);
    border-block-end: 1px solid var(--zh-border);
    box-shadow: var(--zh-shadow-md);
    display: none;
  }
  .zh-header { position: relative; }
  .zh-header.is-menu-open .zh-nav { display: block; }
  .zh-nav__list { flex-direction: column; align-items: stretch; padding: 0.75rem; gap: 0.25rem; }
  .zh-nav__link, .zh-nav__pending { display: flex; padding: 0.8rem 1rem; min-block-size: 48px; }
}

@media (max-width: 560px) {
  /* Simplified mobile footer (v1.1.0): less padding, tighter gaps,
     tagline + long contact note hidden — keeps all links/labels. */
  .zh-footer { padding-block: 1.25rem 1rem; }
  .zh-footer__grid { grid-template-columns: 1fr; gap: 1rem; }
  .zh-footer__tagline, .zh-footer__note--mobile-hide { display: none; }
  .zh-footer__heading { margin-block-end: 0.5rem; }
  .zh-footer__list { gap: 0.35rem; }
  .zh-footer__bottom { margin-block-start: 1rem; padding-block-start: 0.75rem; }
  .zh-brand__subtitle { display: none; }
  .zh-brand__name { font-size: 1.15rem; }
  .zh-main { padding-block: var(--zh-space-6) var(--zh-space-8); }
}

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