/* ─── VARIABLES ─── */
:root {
  --bg: #0d0f14;
  --bg2: #12151c;
  --bg3: #1a1e28;
  --border: #252a38;
  --border2: #2f3547;
  --text: #e8eaf0;
  --text2: #9ba3b8;
  --text3: #6b7490;
  --accent: #48a999;
  --accent2: #80CBC4;
  --accent3: #3ecf8e;
  --warn: #f5a623;
  --danger: #f06292;
  --code-bg: #0a0c10;
  --inline-code-bg: #1e2232;
  --tag-bg: #1a2035;
  --radius: 8px; 
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  line-height: 1.75;
  min-height: 100vh;
  overflow-x: hidden;
  max-width: 100vw;
}

/* ─── NOISE TEXTURE ─── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
}

/* ─── HEADER ─── */
header {
  position: relative;
  z-index: 1;
  padding: 80px 24px 60px;
  text-align: center;
  overflow: hidden;
}

header::after {
  content: '';
  position: absolute;
  top: -60px;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 400px;
  background: radial-gradient(ellipse at 50% 40%, rgba(72, 169, 153, 0.12) 0%, rgba(128, 203, 196, 0.07) 50%, transparent 70%);
  pointer-events: none;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--tag-bg);
  border: 1px solid var(--border2);
  border-radius: 100px;
  padding: 5px 14px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--accent);
  margin-bottom: 28px;
}

.badge-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent3);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

h1 {
  font-family: 'Syne', sans-serif;
  font-size: clamp(36px, 7vw, 68px);
  font-weight: 800;
  letter-spacing: -1.5px;
  line-height: 1.05;
  margin-bottom: 20px;
}

h1 .mono {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  color: var(--text2);
  font-size: clamp(15px, 2vw, 18px);
  max-width: 620px;
  margin: 0 auto 36px;
}

/* ─── BUTTONS & ACTIONS ─── */
.hAct {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  max-width: 680px;
  margin: 0 auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
  border: 1px solid transparent;
  flex: 1 1 calc(33.333% - 12px);
  min-width: 170px;
}

.btnP { background: var(--accent); color: #fff; }
.btnP:hover { background: #3c9183; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(72, 169, 153, 0.25); }

.btnS { background: rgba(255, 255, 255, 0.02); color: var(--text); border-color: var(--border2); }
.btnS:hover { border-color: var(--accent); color: var(--accent); background: rgba(72, 169, 153, 0.05); transform: translateY(-2px); }

.btnL {
  background: rgba(72, 169, 153, 0.1);
  color: var(--accent);
  border: 1px solid var(--accent);
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 100px;
  cursor: pointer;
  transition: all 0.2s;
  margin-left: 10px;
}
.btnL:hover { background: var(--accent); color: #fff; }

/* ─── LAYOUT ─── */
main {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

/* ─── NAV ─── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13,15,20,0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 14px 24px;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
}

nav a {
  color: var(--text3);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  padding: 5px 12px;
  border-radius: 100px;
  transition: all 0.15s;
  white-space: nowrap;
}
nav a:hover { color: var(--text); background: var(--bg3); }

/* ─── SECTIONS ─── */
section { margin-bottom: 56px; }

h2 {
  font-family: 'Syne', sans-serif;
  font-size: 26px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
  padding-top: 24px;
}

h3 {
  font-family: 'Syne', sans-serif;
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin: 24px 0 10px;
}

p { color: var(--text2); margin-bottom: 14px; }

/* حماية الروابط العامة خارج الأكواد من التمدد */
a { 
  color: var(--accent); 
  text-decoration: none; 
  overflow-wrap: break-word;
}
a:hover { text-decoration: underline; }

/* ─── CODE BLOCKS & PRE ─── */
.code-wrap {
  position: relative;
  margin: 20px 0;
}

.code-label {
  position: absolute;
  top: 0;
  right: 16px;
  background: var(--bg3);
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-top: none;
  border-bottom-left-radius: 6px;
  border-bottom-right-radius: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  user-select: none;
  z-index: 2;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 24px 20px; 
  overflow-x: auto;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13.5px;
  line-height: 1.7;
  color: #abb2bf;
  position: relative;
}

code { font-family: 'JetBrains Mono', monospace; }

/* الأكواد المضمنة (التنسيق المشترك) */
p code, li code, td code {
  background: var(--inline-code-bg);
  border: 1px solid var(--border2);
  border-radius: 5px;
  padding: 1px 7px;
  font-size: 13px;
  color: #e06c75;
}

/* فرض الالتفاف فقط على الفقرات والقوائم */
p code, li code {
  word-break: break-word;
  overflow-wrap: break-word;
  white-space: normal;
}

/* منع الالتفاف نهائياً للأكواد داخل الجداول */
td code {
  white-space: nowrap;
  word-break: normal;
}

/* ─── SYNTAX COLORS ─── */
.s { color: #98c379; }
.k { color: #61afef; }
.n { color: #e5c07b; }
.b { color: #56b6c2; }
.c { color: #5c6370; font-style: italic; }
.p { color: #abb2bf; }

/* ─── TABLE ─── */
.table-wrap { 
  overflow-x: auto; 
  margin: 16px 0; 
  border-radius: var(--radius); 
  border: 1px solid var(--border); 
}
table { width: 100%; border-collapse: collapse; }
thead { background: var(--bg3); }
th {
  text-align: left;
  padding: 12px 16px;
  font-family: 'Syne', sans-serif;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text3);
  border-bottom: 1px solid var(--border);
}
td {
  padding: 11px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text2);
  font-size: 14px;
  vertical-align: top;
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(255,255,255,0.015); }

/* ─── CALLOUTS ─── */
.callout {
  display: flex;
  gap: 14px;
  padding: 18px 20px;
  border-radius: var(--radius);
  margin: 20px 0;
  font-size: 14px;
}
.callout p { margin: 0; }
.callout-info { background: rgba(79,156,249,0.08); border: 1px solid rgba(79,156,249,0.2); border-left: 4px solid var(--accent); }
.callout-warn { background: rgba(245,166,35,0.08); border: 1px solid rgba(245,166,35,0.2); border-left: 4px solid var(--warn); }
.callout-danger { background: rgba(240,98,146,0.08); border: 1px solid rgba(240,98,146,0.2); border-left: 4px solid var(--danger); }
.callout-success { background: rgba(62,207,142,0.08); border: 1px solid rgba(62,207,142,0.2); border-left: 4px solid var(--accent3); }

/* ─── LANG GRID ─── */
.lang-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 10px; margin: 16px 0; }
.lang-chip { background: var(--bg3); border: 1px solid var(--border2); border-radius: var(--radius); padding: 12px 14px; text-align: center; }
.lang-chip .code { display: block; font-family: 'JetBrains Mono', monospace; font-size: 17px; color: var(--accent); font-weight: 600; margin-bottom: 4px; }
.lang-chip .name { font-size: 12px; color: var(--text3); }

/* ─── STEP LIST ─── */
.steps { counter-reset: step; }
.step { display: flex; gap: 16px; margin-bottom: 20px; }
.step-num { flex-shrink: 0; width: 32px; height: 32px; border-radius: var(--radius); background: linear-gradient(135deg, var(--accent), var(--accent2)); display: flex; align-items: center; justify-content: center; font-family: 'Syne', sans-serif; font-weight: 800; font-size: 13px; color: #fff; counter-increment: step; margin-top: 2px; }
.step-body { flex: 1; }
.step-body strong { display: block; font-size: 15px; color: var(--text); margin-bottom: 4px; }

/* ─── MISTAKES ─── */
.mistake-block { margin: 16px 0; }
.mistake-label { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.7px; padding: 3px 10px; border-radius: 100px; margin-bottom: 6px; }
.mistake-label.bad { background: rgba(240,98,146,0.15); color: var(--danger); }
.mistake-label.good { background: rgba(62,207,142,0.15); color: var(--accent3); }

/* ─── FAQ ─── */
details { border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 10px; overflow: hidden; }
summary { padding: 16px 20px; cursor: pointer; font-weight: 600; color: var(--text); list-style: none; display: flex; align-items: center; justify-content: space-between; transition: background 0.15s; position: relative; }
summary:hover { background: var(--bg3); }
summary::after { content: '+'; font-size: 20px; color: var(--text3); }
details[open] summary::after { content: '−'; color: var(--accent); }
details[open] summary { background: var(--bg3); border-bottom: 1px solid var(--border); }
.faq-body { padding: 16px 20px; }
.faq-body p { margin: 0; }

/* ─── FOOTER ─── */
footer { position: relative; z-index: 1; text-align: center; padding: 40px 24px; border-top: 1px solid var(--border); color: var(--text3); font-size: 13px; }
footer a { color: var(--text3); }
footer a:hover { color: var(--accent); }

ul, ol { padding-left: 20px; color: var(--text2); margin-bottom: 14px; }
li { margin-bottom: 6px; }
li strong { color: var(--text); }

/* ─── RESPONSIVE ─── */
@media (max-width: 768px) {
  .btn { flex: 1 1 calc(50% - 12px); }
}

@media (max-width: 600px) {
  header { padding: 60px 16px 40px; }
  main { padding: 0 16px 60px; }
  pre { padding: 40px 16px 16px; font-size: 12.5px; }
  h2 { font-size: 22px; }
  .hAct { flex-direction: column; gap: 10px; }
  .btn { width: 100%; flex: none; }
}

/* ─── RTL SUPPORT (ARABIC) ─── */

[dir="rtl"] body { text-align: right; }

[dir="rtl"] body, 
[dir="rtl"] p, 
[dir="rtl"] a, 
[dir="rtl"] td, 
[dir="rtl"] .btn {
  /* اعتماد خط Tajawal مع بدائل النظام */
  font-family: 'Tajawal', system-ui, -apple-system, 'Segoe UI', Roboto, Tahoma, Arial, sans-serif;
  letter-spacing: 0;
}

/* تطبيق خط Tajawal على جميع العناوين */
[dir="rtl"] h1, 
[dir="rtl"] h2, 
[dir="rtl"] h3, 
[dir="rtl"] th, 
[dir="rtl"] summary {
  font-family: 'Tajawal', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}

/* محاذاة العناوين الفرعية والجداول إلى اليمين (باستثناء h1) */
[dir="rtl"] h2, 
[dir="rtl"] h3, 
[dir="rtl"] th, 
[dir="rtl"] summary {
  text-align: right;
}

/* إجبار قسم الـ Header بالكامل على البقاء في المنتصف */
[dir="rtl"] header,
[dir="rtl"] header h1,
[dir="rtl"] header .subtitle {
  text-align: center;
}

/* عزل الأكواد المضمنة بمرونة لمنع كسر الشاشة والحفاظ على تماسك الجملة العربية */
[dir="rtl"] p code, 
[dir="rtl"] li code, 
[dir="rtl"] td code, 
[dir="rtl"] .mono,
[dir="rtl"] .code {
  direction: ltr;
  unicode-bidi: isolate;
  text-align: left;
}

/* تثبيت الحاويات البرمجية بالاتجاه الأصلي */
[dir="rtl"] pre {
  direction: ltr;
  text-align: left;
}

/* عكس التبويب الخاص بالتسمية ليكون على اليسار */
[dir="rtl"] .code-label {
  right: auto;
  left: 16px;
  direction: ltr;
}

/* الانعكاس الهندسي للعناصر */
[dir="rtl"] ul, 
[dir="rtl"] ol {
  padding-left: 0;
  padding-right: 20px;
}

[dir="rtl"] .lang-select {
  margin-left: 0;
  margin-right: 10px;
}


/* تنسيق أيقونة الأسئلة الشائعة في وضع RTL */
[dir="rtl"] summary { padding: 16px 20px 16px 40px; }
[dir="rtl"] summary::after { position: absolute; left: 20px; right: auto; }

/* عكس حدود زوايا التنبيهات */
[dir="rtl"] .callout-info { border-left: none; border-right: 4px solid var(--accent); }
[dir="rtl"] .callout-warn { border-left: none; border-right: 4px solid var(--warn); }
[dir="rtl"] .callout-danger { border-left: none; border-right: 4px solid var(--danger); }
[dir="rtl"] .callout-success { border-left: none; border-right: 4px solid var(--accent3); }

.lang-select {
  background: rgba(72, 169, 153, 0.1);
  color: var(--accent);
  border: 1px solid var(--accent);
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 100px;
  cursor: pointer;
  transition: all 0.2s;
  margin-left: 10px;
  outline: none;
}

.lang-select:hover, .lang-select:focus {
  background: rgba(72, 169, 153, 0.2);
}

.lang-select option {
  background: var(--bg2);
  color: var(--text);
  font-weight: 500;
}