/* ═══════════════════════════════════════════
   shared.css — نظام التصميم المشترك
   دفتر البرمجة
═══════════════════════════════════════════ */

/* ═══════════════ FONTS ═══════════════ */
@import url('https://fonts.googleapis.com/css2?family=Aref+Ruqaa:wght@400;700&family=Cairo:wght@300;400;500;600;700;900&family=Caveat:wght@400;700&family=Fira+Code:wght@400;500;600&family=Reem+Kufi:wght@400;500;600;700&family=Tajawal:wght@400;500;700;800&display=swap');

/* ═══════════════ CSS VARIABLES ═══════════════ */
:root {
  /* ألوان الورق */
  --paper: #fffef7;
  --paper-line: #c5d8e8;
  --paper-margin: #f4a8a8;

  /* ألوان الحبر */
  --ink-blue: #1e3a8a;
  --ink-blue-light: #2563eb;
  --ink-red: #dc2626;
  --ink-pink: #db2777;
  --ink-green: #15803d;
  --ink-purple: #7c3aed;
  --ink-orange: #ea580c;
  --ink-teal: #0d9488;

  /* ألوان الواجهة */
  --bg: #e0f2fe;
  --card: #ffffff;
  --text: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;

  /* الظلال */
  --shadow: 0 4px 24px rgba(30,58,138,0.08);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.08);
  --shadow-hover: 0 8px 32px rgba(30,58,138,0.15);

  /* متفرقات */
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.2s ease;

  /* خلفيات الكود */
  --code-bg: #fff9e6;
  --code-bg-blue: #e6f7ff;
  --code-bg-green: #f0fdf4;
  --code-bg-pink: #fdf2f8;

  /* gradient backgrounds */
  --body-bg-start: #e0f2fe;
  --body-bg-end:   #bae6fd;
}

/* ═══════════════ DARK MODE VARIABLES ═══════════════ */
body.dark {
  --paper: #1e293b;
  --paper-line: #334155;
  --paper-margin: #7c3aed;

  --ink-blue: #60a5fa;
  --ink-blue-light: #93c5fd;
  --ink-red: #f87171;
  --ink-pink: #f472b6;
  --ink-green: #4ade80;
  --ink-purple: #a78bfa;
  --ink-orange: #fb923c;
  --ink-teal: #2dd4bf;

  --bg: #0f172a;
  --card: #1e293b;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --border: #334155;

  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.5);
  --shadow-hover: 0 8px 32px rgba(124,58,237,0.3);

  --code-bg: #1e293b;
  --code-bg-blue: #1e3a5f;
  --code-bg-green: #14532d;
  --code-bg-pink: #500724;

  --body-bg-start: #0f172a;
  --body-bg-end:   #1e1b4b;
}

body { transition: background 0.4s ease, color 0.3s ease; }

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

/* ═══════════════ BODY ═══════════════ */
body {
  font-family: 'Cairo', sans-serif;
  background: radial-gradient(ellipse at top, var(--body-bg-start) 0%, var(--body-bg-end) 100%);
  min-height: 100vh;
  color: var(--text);
  line-height: 1.8;
}

/* ═══════════════ TYPOGRAPHY ═══════════════ */
.font-ruqaa { font-family: 'Aref Ruqaa', serif; }
.font-caveat { font-family: 'Caveat', cursive; }
.font-cairo  { font-family: 'Cairo', sans-serif; }
.font-code   { font-family: 'Fira Code', 'Courier New', monospace; }
.font-tajawal { font-family: 'Tajawal', sans-serif; }

/* ═══════════════ NOTEBOOK BASE ═══════════════ */
.notebook {
  background: var(--paper);
  background-image: linear-gradient(var(--paper-line) 1px, transparent 1px);
  background-size: 100% 32px;
  background-position: 0 80px;
  border-radius: 8px;
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(0,0,0,0.05);
  position: relative;
  overflow: hidden;
}

.notebook::before {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  right: 50px;
  width: 2px;
  background: var(--paper-margin);
  opacity: 0.6;
  pointer-events: none;
}

.notebook::after {
  content: '';
  position: absolute;
  left: 18px;
  top: 0; bottom: 0;
  width: 14px;
  background-image: radial-gradient(circle at center, #7dd3fc 0%, #7dd3fc 50%, transparent 51%);
  background-size: 14px 14px;
  background-repeat: repeat-y;
  background-position: center 80px;
  pointer-events: none;
}

/* ═══════════════ TOP BAR ═══════════════ */
.top-bar {
  background: white;
  border-radius: var(--radius);
  padding: 14px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow);
  flex-wrap: wrap;
  gap: 10px;
}

.crumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.crumbs a {
  color: var(--ink-blue);
  text-decoration: none;
  font-weight: 600;
  transition: color var(--transition);
}

.crumbs a:hover { color: var(--ink-red); }
.crumbs .sep { color: var(--border); }
.crumbs .current { color: var(--text); font-weight: 700; }

/* ═══════════════ PROGRESS BAR (mini) ═══════════════ */
.progress-mini {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}

.progress-bar-mini {
  width: 100px;
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}

.progress-fill-mini {
  height: 100%;
  background: linear-gradient(90deg, var(--ink-blue), var(--ink-green));
  transition: width 0.6s ease;
}

/* ═══════════════ PROGRESS BAR (full) ═══════════════ */
.progress-bar {
  height: 8px;
  background: var(--border);
  border-radius: 4px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--ink-blue), var(--ink-green));
  border-radius: 4px;
  transition: width 0.6s ease;
}

/* ═══════════════ BADGE ═══════════════ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 700;
}

.badge-soon {
  background: #f1f5f9;
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.badge-new {
  background: var(--ink-green);
  color: white;
}

.badge-active {
  background: var(--ink-blue);
  color: white;
}

/* ═══════════════ ALERT BOXES ═══════════════ */
.warning-box, .tip-box, .note-box, .info-box {
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  margin: 14px 0;
  font-size: 0.98rem;
  position: relative;
  padding-right: 50px;
}

.warning-box::before, .tip-box::before,
.note-box::before, .info-box::before {
  position: absolute;
  right: 14px;
  top: 12px;
  font-size: 1.3rem;
}

.warning-box { background: #fee2e2; border-right: 4px solid var(--ink-red); }
.warning-box::before { content: '⚠️'; }

.tip-box { background: #dbeafe; border-right: 4px solid var(--ink-blue); }
.tip-box::before { content: '💡'; }

.note-box { background: #fef9c3; border-right: 4px solid #facc15; }
.note-box::before { content: '📌'; }

.info-box { background: #e0f2fe; border-right: 4px solid var(--ink-teal); }
.info-box::before { content: 'ℹ️'; }

/* ═══════════════ TOAST ═══════════════ */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: #1e293b;
  color: white;
  padding: 12px 24px;
  border-radius: 30px;
  font-size: 0.9rem;
  font-weight: 600;
  z-index: 9999;
  opacity: 0;
  transition: all 0.3s;
  white-space: nowrap;
  pointer-events: none;
}

.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ═══════════════ SCROLL TOP ═══════════════ */
.scroll-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--ink-blue);
  color: white;
  border: none;
  cursor: pointer;
  font-size: 1.3rem;
  box-shadow: var(--shadow-lg);
  display: none;
  z-index: 100;
  transition: all var(--transition);
}

.scroll-top:hover { transform: scale(1.1); background: var(--ink-blue-light); }
.scroll-top.show { display: block; }

/* ═══════════════ ANIMATIONS ═══════════════ */
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes twinkle {
  0%, 100% { opacity: 1; transform: scale(1) rotate(0deg); }
  50% { opacity: 0.6; transform: scale(1.2) rotate(20deg); }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

/* ═══════════════ TABLES ═══════════════ */
.cool-table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  background: white;
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  font-size: 0.95rem;
}

.cool-table thead {
  background: linear-gradient(135deg, var(--ink-blue), var(--ink-blue-light));
  color: white;
}

.cool-table th {
  padding: 12px 14px;
  text-align: right;
  font-family: 'Aref Ruqaa', serif;
  font-weight: 600;
}

.cool-table td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
  border-left: 1px solid var(--border);
}

.cool-table td:last-child { border-left: none; }
.cool-table tbody tr:hover { background: #f9fafb; }

.cool-table code {
  background: var(--code-bg);
  padding: 2px 8px;
  border-radius: 4px;
  font-family: 'Fira Code', monospace;
  font-size: 0.9em;
  color: var(--ink-purple);
  white-space: nowrap;
}

/* ═══════════════ TABLE RESPONSIVE WRAPPER ═══════════════ */
/* يلتف حول الجدول تلقائياً للتمرير الأفقي على الموبايل */
.cool-table {
  display: block;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  max-width: 100%;
}

.cool-table thead, .cool-table tbody {
  display: table;
  width: 100%;
  table-layout: auto;
}

/* مؤشر بصري لإمكانية التمرير */
.cool-table {
  background-image:
    linear-gradient(to left, rgba(255,255,255,1) 30%, rgba(255,255,255,0)),
    linear-gradient(to right, rgba(255,255,255,1) 30%, rgba(255,255,255,0)),
    radial-gradient(farthest-side at 100% 50%, rgba(0,0,0,0.15), rgba(0,0,0,0)),
    radial-gradient(farthest-side at 0 50%, rgba(0,0,0,0.15), rgba(0,0,0,0));
  background-position: right, left, left, right;
  background-repeat: no-repeat;
  background-color: white;
  background-size: 40px 100%, 40px 100%, 14px 100%, 14px 100%;
  background-attachment: local, local, scroll, scroll;
}

/* ═══════════════ CODE BOX ═══════════════ */
.code-box {
  background: var(--code-bg);
  border: 1.5px solid #d4a574;
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  margin: 14px 0;
  font-family: 'Fira Code', 'Courier New', monospace;
  font-size: 0.95rem;
  direction: ltr;
  text-align: left;
  overflow-x: auto;
  box-shadow: 2px 2px 0 rgba(212,165,116,0.3);
  line-height: 1.7;
  position: relative;
}

.code-box.blue { background: var(--code-bg-blue); border-color: #7dd3fc; box-shadow: 2px 2px 0 rgba(125,211,252,0.3); }
.code-box.green { background: var(--code-bg-green); border-color: #86efac; box-shadow: 2px 2px 0 rgba(134,239,172,0.3); }
.code-box.pink { background: var(--code-bg-pink); border-color: #f9a8d4; box-shadow: 2px 2px 0 rgba(249,168,212,0.3); }

.code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  font-family: 'Cairo', sans-serif;
  font-size: 0.78rem;
  color: var(--text-muted);
  direction: rtl;
  font-weight: 600;
}

.copy-btn {
  background: white;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 10px;
  font-family: 'Cairo', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  color: var(--text-muted);
}

.copy-btn:hover { background: var(--ink-blue); color: white; border-color: var(--ink-blue); }
.copy-btn.copied { background: var(--ink-green); color: white; border-color: var(--ink-green); }

/* Syntax highlighting */
.tag-open, .tag-close { color: #2563eb; }
.tag-name { color: #7c3aed; font-weight: 600; }
.attr { color: #ea580c; }
.attr-val { color: #15803d; }
.text-node { color: #1e293b; }
.comment { color: #94a3b8; font-style: italic; }

/* ═══════════════ RESPONSIVE ═══════════════ */
@media (max-width: 700px) {
  .top-bar { padding: 12px 16px; }

  /* الجداول على الموبايل: حجم أصغر + padding أقل + سماح بـ wrap */
  .cool-table { font-size: 0.85rem; }
  .cool-table th, .cool-table td { padding: 8px 10px; }
  .cool-table th {
    font-family: 'Cairo', sans-serif;
    font-size: 0.82rem;
    font-weight: 700;
  }
  /* السماح للأكواد الطويلة بأن تنكسر بدل قطع الجدول */
  .cool-table td { word-break: break-word; }
  .cool-table code {
    white-space: normal;
    word-break: break-all;
    font-size: 0.8em;
  }
}

@media (max-width: 480px) {
  .cool-table { font-size: 0.8rem; }
  .cool-table th, .cool-table td { padding: 7px 8px; }
}

@media print {
  body { background: white; }
  .scroll-top, .toast { display: none !important; }
}