:root {
  --brand: #2f423e;
  --brand-light: #e8f0ed;
  --text: #1a1a1a;
  --muted: #5c6670;
  --border: #e8ecef;
  --bg: #f8f9fa;
  --card: #ffffff;
  --accent: #3d5a54;
  --max: 820px;
  --radius: 14px;
  --shadow: 0 8px 30px rgba(47, 66, 62, 0.08);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "IBM Plex Sans Arabic", "IBM Plex Sans", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
}

body[dir="ltr"] {
  font-family: "IBM Plex Sans", system-ui, -apple-system, sans-serif;
}

a {
  color: var(--brand);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

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

.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(8px);
}

.header-inner {
  max-width: calc(var(--max) + 80px);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--brand);
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--brand-light);
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 18px;
}

.brand-name {
  font-weight: 700;
  font-size: 1.15rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.lang-btn {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--brand);
  padding: 8px 14px;
  border-radius: 999px;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.lang-btn:hover,
.lang-btn.active {
  background: var(--brand-light);
  border-color: #c5d5d0;
}

.hero {
  max-width: calc(var(--max) + 80px);
  margin: 0 auto;
  padding: 40px 24px 8px;
}

.hero-card {
  background: linear-gradient(135deg, var(--brand) 0%, #3d5a54 100%);
  color: #fff;
  border-radius: calc(var(--radius) + 4px);
  padding: 36px 32px;
  box-shadow: var(--shadow);
}

.hero h1 {
  margin: 0 0 10px;
  font-size: clamp(1.6rem, 4vw, 2.1rem);
  line-height: 1.3;
}

.hero p {
  margin: 0;
  opacity: 0.92;
  max-width: 60ch;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.meta-pill {
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.85rem;
}

.layout {
  max-width: calc(var(--max) + 80px);
  margin: 0 auto;
  padding: 24px 24px 64px;
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 28px;
  align-items: start;
}

@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .toc {
    position: static !important;
  }
}

.toc {
  position: sticky;
  top: 84px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}

.toc h2 {
  margin: 0 0 12px;
  font-size: 0.95rem;
  color: var(--brand);
}

.toc ol {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.toc a {
  display: block;
  text-decoration: none;
  color: var(--muted);
  font-size: 0.92rem;
  padding: 6px 8px;
  border-radius: 8px;
  transition: background 0.15s ease, color 0.15s ease;
}

.toc a:hover {
  background: var(--brand-light);
  color: var(--brand);
}

.content {
  display: grid;
  gap: 18px;
}

section {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 26px;
  box-shadow: var(--shadow);
}

section h2 {
  margin: 0 0 14px;
  font-size: 1.15rem;
  color: var(--brand);
}

section h3 {
  margin: 18px 0 8px;
  font-size: 1rem;
  color: var(--text);
}

section p,
section li {
  color: #333;
}

section ul {
  margin: 8px 0 0;
  padding-inline-start: 1.2rem;
}

section li + li {
  margin-top: 6px;
}

.table-wrap {
  overflow-x: auto;
  margin-top: 12px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

th,
td {
  border: 1px solid var(--border);
  padding: 10px 12px;
  text-align: start;
  vertical-align: top;
}

th {
  background: var(--brand-light);
  color: var(--brand);
  font-weight: 600;
}

.notice {
  background: var(--brand-light);
  border: 1px solid #cfe0da;
  border-radius: 10px;
  padding: 14px 16px;
  margin-top: 12px;
  font-size: 0.94rem;
}

.site-footer {
  max-width: calc(var(--max) + 80px);
  margin: 0 auto;
  padding: 0 24px 40px;
  color: var(--muted);
  font-size: 0.9rem;
}

.footer-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  justify-content: space-between;
  align-items: center;
}

[hidden] {
  display: none !important;
}