/* MohammedHQ: نظام التصميم الأساسي — الوضع الداكن فقط. */

:root {
  color-scheme: dark;

  /* الألوان */
  --color-background: #101214;
  --color-surface: #191c1f;
  --color-surface-raised: #22262a;
  --color-text: #f3f4f6;
  --color-text-muted: #aeb4bc;
  --color-primary: #7dd3fc;
  --color-primary-hover: #bae6fd;
  --color-border: #343a40;
  --color-focus: #fbbf24;
  --color-danger: #f87171;

  /* المسافات */
  --space-0: 0;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;

  /* أحجام الخطوط */
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;

  /* الحدود والزوايا */
  --border-width: 1px;
  --border-radius-sm: 0.25rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 0.75rem;
  --border-radius-full: 9999px;

  /* الظلال */
  --shadow-sm: 0 1px 2px rgb(0 0 0 / 30%);
  --shadow-md: 0 4px 12px rgb(0 0 0 / 35%);
  --shadow-lg: 0 12px 28px rgb(0 0 0 / 40%);

  --container-width: 72rem;
}

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

html {
  direction: rtl;
  scroll-behavior: smooth;
}

body,
h1,
h2,
h3,
h4,
h5,
h6,
p,
figure,
blockquote,
dl,
dd {
  margin: 0;
}

body {
  min-height: 100vh;
  background: var(--color-background);
  color: var(--color-text);
  font-family: system-ui, sans-serif;
  font-size: var(--font-size-base);
  line-height: 1.7;
  text-rendering: optimizeLegibility;
}

ul,
ol {
  margin-block: 0;
  padding-inline-start: var(--space-6);
}

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

/* العناصر الأساسية */
h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--color-text);
  font-weight: 700;
  line-height: 1.25;
  text-wrap: balance;
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
  max-width: 70ch;
  color: var(--color-text-muted);
}

a {
  color: var(--color-primary);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.2em;
}

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

nav a {
  margin-inline-end: var(--space-4);
}

a:focus-visible,
button:focus-visible,
.button:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

button,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 2.75rem;
  padding: var(--space-2) var(--space-4);
  border: var(--border-width) solid transparent;
  border-radius: var(--border-radius-md);
  background: var(--color-primary);
  color: var(--color-background);
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
}

button:hover,
.button:hover {
  background: var(--color-primary-hover);
  color: var(--color-background);
}

button:disabled,
.button[aria-disabled="true"] {
  cursor: not-allowed;
  opacity: 0.55;
}

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

img {
  height: auto;
}

/* Shared site header and navigation */
.site-header {
  padding-block: var(--space-4);
  border-block-end: var(--border-width) solid var(--color-border);
  background: var(--color-surface);
}

.site-header > .container {
  min-height: 3.5rem;
}

.primary-nav ul,
.footer-nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.primary-nav a,
.footer-nav a {
  display: inline-block;
  padding-block: var(--space-2);
}

.primary-nav li:last-child a,
.footer-nav li:last-child a {
  margin-inline-end: 0;
}

.primary-nav a[aria-current="page"],
.footer-nav a[aria-current="page"] {
  color: var(--color-text);
  font-weight: 700;
  text-decoration: none;
}

.site-logo {
  color: var(--color-text);
  font-size: var(--font-size-xl);
  font-weight: 700;
  text-decoration: none;
}

.site-logo:hover {
  color: var(--color-primary);
}

/* Shared card */
.content-card {
  display: grid;
  align-content: start;
  gap: var(--space-4);
  padding: var(--space-5);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--border-radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.content-card:not(.content-card--static):hover,
.content-card:not(.content-card--static):focus-within {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.content-card time {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

/* A post card's title is its only link: it reads as a heading, not as a
   blue link, until hovered/focused. */
.content-card h3 a {
  color: inherit;
  text-decoration: none;
}

.content-card h3 a:hover,
.content-card h3 a:focus-visible {
  text-decoration: underline;
}

.content-card--featured {
  max-width: 56rem;
  padding: var(--space-6);
  background: var(--color-surface-raised);
}

.content-card--featured h3 {
  font-size: var(--font-size-3xl);
}

@media (max-width: 36rem) {
  .content-card--featured {
    padding: var(--space-5);
  }
}

/* Shared site footer */
.site-footer {
  padding-block: var(--space-6);
  border-block-start: var(--border-width) solid var(--color-border);
  background: var(--color-surface);
}

.site-footer > .container {
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-4) var(--space-6);
}

.site-footer__contact {
  justify-self: center;
}

.footer-nav {
  justify-self: end;
}

.site-footer--compact > .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4) var(--space-6);
}

.site-footer__group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
}

.site-footer__group p {
  color: var(--color-text-muted);
}

.site-footer__separator {
  color: var(--color-text-muted);
}

.site-footer a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
}

.site-footer--compact .site-footer__contact {
  direction: ltr;
  unicode-bidi: isolate;
  justify-self: auto;
}

/* الحاوية والتخطيط */
.container {
  width: min(100% - (2 * var(--space-4)), var(--container-width));
  margin-inline: auto;
}

.grid {
  display: grid;
  gap: var(--space-5);
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-auto {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr));
}

.flex {
  display: flex;
}

.flex-wrap {
  flex-wrap: wrap;
}

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }

/* Utilities */
.skip-link {
  position: absolute;
  inset-block-start: var(--space-2);
  inset-inline-start: var(--space-2);
  z-index: 1000;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--border-radius-md);
  background: var(--color-primary);
  color: var(--color-background);
  font-weight: 700;
  transform: translateY(-200%);
}

.skip-link:focus {
  color: var(--color-background);
  transform: translateY(0);
}

.text-center {
  text-align: center;
}

.hidden {
  display: none !important;
}

.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;
}

.section--hero {
  padding-block: var(--space-7);
}

.section:not(.section--hero) {
  padding-block: var(--space-8);
}

main > .section + .section {
  border-block-start: var(--border-width) solid var(--color-border);
}

.section-heading {
  margin-block-end: var(--space-6);
}

[dir="ltr"] {
  direction: ltr;
}

@media (max-width: 48rem) {
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .section:not(.section--hero) {
    padding-block: var(--space-7);
  }

  .site-footer > .container {
    grid-template-columns: 1fr;
    justify-items: start;
  }

  .site-footer__contact,
  .footer-nav {
    justify-self: start;
  }

  .site-footer--compact > .container {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }
}

@media (max-width: 36rem) {
  .site-header > .container {
    align-items: flex-start;
    flex-direction: column;
  }

  .primary-nav ul {
    row-gap: var(--space-1);
  }
}

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