/* ─── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:          #0d1117;
  --bg-card:     #161b22;
  --bg-header:   #0d1117ee;
  --border:      #21282f;
  --accent:      #3fb950;
  --accent-gold: #d4a847;
  --text-primary:#e6edf3;
  --text-muted:  #8b949e;
  --tab-active:  #238636;
  --tab-hover:   #1f2937;
  --radius:      12px;
  --radius-sm:   8px;
  --shadow:      0 8px 32px rgba(0,0,0,.45);
  --font-body:   'Inter', system-ui, sans-serif;
  --font-ar:     'Amiri', 'Noto Naskh Arabic', serif;
  --max-w:       760px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ─── Header ───────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-header);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

/* Brand */
.brand { display: flex; align-items: center; gap: 10px; }
.brand-icon {
  font-size: 22px;
  color: var(--accent-gold);
  filter: drop-shadow(0 0 6px rgba(212,168,71,.4));
}
.brand-name {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: .3px;
  color: var(--text-primary);
}
.brand-sub {
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--accent);
  background: rgba(63,185,80,.12);
  padding: 2px 8px;
  border-radius: 99px;
  border: 1px solid rgba(63,185,80,.25);
}

/* Lang picker */
.lang-picker { display: flex; gap: 4px; flex-wrap: wrap; }
.lang-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 99px;
  cursor: pointer;
  transition: all .18s ease;
  letter-spacing: .5px;
  font-family: var(--font-body);
}
.lang-btn:hover {
  background: var(--tab-hover);
  color: var(--text-primary);
  border-color: #444d56;
}
.lang-btn.active {
  background: rgba(63,185,80,.15);
  border-color: var(--accent);
  color: var(--accent);
}

/* ─── Main ─────────────────────────────────────────────────── */
.main-wrap {
  flex: 1;
  max-width: var(--max-w);
  width: 100%;
  margin: 0 auto;
  padding: 32px 20px 48px;
}

/* Doc tabs */
.doc-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
}
.tab-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all .18s ease;
  font-family: var(--font-body);
}
.tab-btn:hover {
  background: var(--tab-hover);
  color: var(--text-primary);
  border-color: #444d56;
}
.tab-btn.active {
  background: rgba(35,134,54,.18);
  border-color: var(--tab-active);
  color: var(--accent);
}
.tab-icon { font-size: 16px; }

/* Document card */
.doc-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  animation: fadeIn .25s ease;
}
@keyframes fadeIn { from { opacity:0; transform: translateY(6px); } to { opacity:1; transform:none; } }

.doc-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 24px;
  background: rgba(255,255,255,.03);
  border-bottom: 1px solid var(--border);
}
.doc-badge {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  background: rgba(212,168,71,.15);
  color: var(--accent-gold);
  border: 1px solid rgba(212,168,71,.3);
  padding: 2px 9px;
  border-radius: 99px;
}
.doc-updated {
  font-size: 12px;
  color: var(--text-muted);
}

/* Document content */
.doc-content {
  padding: 28px 32px 36px;
  font-size: 14.5px;
  line-height: 1.8;
  color: #c9d1d9;
  white-space: pre-wrap;
  word-break: break-word;
}
.doc-content.rtl {
  direction: rtl;
  text-align: right;
  font-family: var(--font-ar);
  font-size: 16px;
  line-height: 2;
}

/* ─── Footer ───────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 18px 20px;
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
}
.footer-inner { max-width: var(--max-w); margin: 0 auto; }
.footer-link {
  color: var(--accent);
  text-decoration: none;
}
.footer-link:hover { text-decoration: underline; }
.footer-sep { margin: 0 8px; opacity: .4; }

/* ─── Responsive ───────────────────────────────────────────── */
@media (max-width: 520px) {
  .doc-content { padding: 20px 18px 28px; }
  .doc-meta { padding: 12px 18px; }
  .tab-btn { padding: 9px 14px; font-size: 13px; }
  .header-inner { flex-wrap: wrap; }
}