/* =====================================================
   NextByte Gate — نظام التصميم الرئيسي
   Modern Dark Theme | RTL | Arabic
   ===================================================== */

/* ---- Google Fonts ---- */
@import url('https://fonts.googleapis.com/css2?family=Tajawal:wght@300;400;500;700;800;900&display=swap');

/* ---- متغيرات CSS ---- */
:root {
  /* الألوان الأساسية */
  --clr-primary:       #25D366;
  --clr-primary-dark:  #128C7E;
  --clr-primary-light: #34eda0;
  --clr-accent:        #00e5ff;

  /* خلفيات */
  --bg-body:    #0a0e17;
  --bg-surface: #111827;
  --bg-card:    #1a2235;
  --bg-input:   #1e2d40;
  --bg-hover:   #1f3046;
  --bg-sidebar: #0d1829;
  --bg-header:  rgba(13, 24, 41, 0.95);

  /* نص */
  --txt-primary:   #e8f0fe;
  --txt-secondary: #8b9db5;
  --txt-muted:     #4a5568;
  --txt-inverse:   #0a0e17;

  /* حدود */
  --border:       rgba(255,255,255,0.07);
  --border-focus: var(--clr-primary);

  /* ظلال */
  --shadow-sm:  0 2px 8px rgba(0,0,0,0.3);
  --shadow-md:  0 4px 20px rgba(0,0,0,0.4);
  --shadow-lg:  0 8px 40px rgba(0,0,0,0.5);
  --shadow-glow:0 0 24px rgba(37,211,102,0.2);

  /* أبعاد */
  --sidebar-w:    260px;
  --header-h:     64px;
  --radius-sm:    8px;
  --radius-md:    12px;
  --radius-lg:    18px;
  --radius-xl:    24px;
  --radius-full:  999px;

  /* انتقالات */
  --trans-fast:   0.15s ease;
  --trans-normal: 0.25s ease;
  --trans-slow:   0.4s ease;

  /* حالات */
  --clr-success: #25D366;
  --clr-warning: #f59e0b;
  --clr-danger:  #ef4444;
  --clr-info:    #3b82f6;
}

/* =====================================================
   إعادة ضبط
   ===================================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: 'Tajawal', sans-serif;
  font-size: 15px;
  line-height: 1.6;
  background: var(--bg-body);
  color: var(--txt-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: var(--clr-primary); text-decoration: none; transition: color var(--trans-fast); }
a:hover { color: var(--clr-primary-light); }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button, input, select, textarea { font-family: inherit; outline: none; }

/* =====================================================
   شريط التمرير
   ===================================================== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-surface); }
::-webkit-scrollbar-thumb { background: var(--bg-hover); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--clr-primary-dark); }

/* =====================================================
   تخطيط التطبيق الرئيسي
   ===================================================== */
.app-layout {
  display: flex;
  min-height: 100vh;
}

.app-main {
  flex: 1;
  margin-right: var(--sidebar-w);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: margin var(--trans-normal);
}

.page-content {
  flex: 1;
  padding: 28px 32px;
  padding-top: calc(var(--header-h) + 28px);
}

/* =====================================================
   الشريط الجانبي (Sidebar)
   ===================================================== */
.sidebar {
  position: fixed;
  top: 0;
  right: 0;
  width: var(--sidebar-w);
  height: 100vh;
  background: var(--bg-sidebar);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 1000;
  transition: transform var(--trans-normal);
  overflow: hidden;
}

/* شعار */
.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
}

.brand-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-primary-dark));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: 0 4px 14px rgba(37,211,102,0.35);
  flex-shrink: 0;
}

.brand-text { flex: 1; }
.brand-name {
  font-size: 16px;
  font-weight: 800;
  color: var(--txt-primary);
  line-height: 1.2;
}
.brand-sub {
  font-size: 11px;
  color: var(--txt-secondary);
  letter-spacing: 0.5px;
}

/* معلومات المستخدم في الشريط الجانبي */
.sidebar-user {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: rgba(37,211,102,0.04);
}

.user-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--clr-primary-dark), var(--clr-primary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
  border: 2px solid rgba(37,211,102,0.3);
}

.user-info { flex: 1; overflow: hidden; }
.user-name {
  font-size: 13px;
  font-weight: 700;
  color: var(--txt-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.user-role {
  font-size: 11px;
  color: var(--clr-primary);
  background: rgba(37,211,102,0.1);
  padding: 1px 8px;
  border-radius: var(--radius-full);
  display: inline-block;
  margin-top: 2px;
}

/* قائمة التنقل */
.sidebar-nav {
  flex: 1;
  padding: 12px 0;
  overflow-y: auto;
}

.nav-section {
  margin-bottom: 4px;
}

.nav-section-title {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--txt-muted);
  padding: 10px 22px 6px;
  text-transform: uppercase;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 20px;
  color: var(--txt-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all var(--trans-fast);
  position: relative;
  border-radius: 0 var(--radius-full) var(--radius-full) 0;
  margin-left: 8px;
}

.nav-link:hover {
  color: var(--txt-primary);
  background: var(--bg-hover);
}

.nav-link.active {
  color: var(--clr-primary);
  background: rgba(37,211,102,0.1);
  font-weight: 700;
}

.nav-link.active::before {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 60%;
  background: var(--clr-primary);
  border-radius: 2px 0 0 2px;
}

.nav-icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}

.nav-label { flex: 1; }

.nav-badge {
  background: var(--clr-danger);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: var(--radius-full);
  min-width: 18px;
  text-align: center;
}

/* ذيل الشريط الجانبي */
.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
}

.btn-logout {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 14px;
  background: rgba(239,68,68,0.08);
  border: 1px solid rgba(239,68,68,0.2);
  border-radius: var(--radius-md);
  color: #ef4444;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--trans-fast);
  text-decoration: none;
}

.btn-logout:hover {
  background: rgba(239,68,68,0.15);
  color: #ef4444;
}

/* =====================================================
   الهيدر
   ===================================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: var(--sidebar-w);
  height: var(--header-h);
  background: var(--bg-header);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 32px;
  gap: 16px;
  z-index: 900;
  transition: right var(--trans-normal);
}

.header-title { flex: 1; }
.page-title {
  font-size: 18px;
  font-weight: 800;
  color: var(--txt-primary);
}
.page-breadcrumb {
  font-size: 12px;
  color: var(--txt-secondary);
  margin-top: 1px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* زر القائمة (موبايل) */
.sidebar-toggle {
  display: none;
  width: 38px;
  height: 38px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--txt-secondary);
  transition: all var(--trans-fast);
}

.sidebar-toggle:hover {
  background: var(--bg-hover);
  color: var(--txt-primary);
}

/* أيقونة الإشعارات */
.btn-icon {
  width: 38px;
  height: 38px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--txt-secondary);
  cursor: pointer;
  transition: all var(--trans-fast);
  position: relative;
  text-decoration: none;
}

.btn-icon:hover {
  background: var(--bg-hover);
  color: var(--txt-primary);
  border-color: var(--clr-primary);
}

.btn-icon .badge {
  position: absolute;
  top: -4px;
  left: -4px;
  width: 16px;
  height: 16px;
  background: var(--clr-danger);
  border-radius: 50%;
  font-size: 9px;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

/* واجهة المستخدم في الهيدر */
.header-user {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--trans-fast);
  text-decoration: none;
}

.header-user:hover {
  background: var(--bg-hover);
  border-color: var(--clr-primary);
}

.header-user .user-avatar-sm {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--clr-primary-dark), var(--clr-primary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: #fff;
}

.header-user-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--txt-primary);
}

/* =====================================================
   الفوتر
   ===================================================== */
.footer {
  padding: 16px 32px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--txt-muted);
  background: var(--bg-surface);
}

.footer-links {
  display: flex;
  gap: 16px;
}

.footer-links a {
  color: var(--txt-muted);
  transition: color var(--trans-fast);
}

.footer-links a:hover { color: var(--clr-primary); }

/* =====================================================
   البطاقات (Cards)
   ===================================================== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all var(--trans-normal);
}

.card:hover { border-color: rgba(37,211,102,0.2); }

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--txt-primary);
}

.card-subtitle {
  font-size: 13px;
  color: var(--txt-secondary);
  margin-top: 2px;
}

/* =====================================================
   بطاقات الإحصائيات
   ===================================================== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px;
  position: relative;
  overflow: hidden;
  transition: all var(--trans-normal);
  cursor: default;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--stat-color, var(--clr-primary));
}

.stat-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--stat-color, var(--clr-primary));
}

.stat-card.green  { --stat-color: var(--clr-primary); }
.stat-card.blue   { --stat-color: var(--clr-info); }
.stat-card.yellow { --stat-color: var(--clr-warning); }
.stat-card.red    { --stat-color: var(--clr-danger); }

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 16px;
  background: rgba(37,211,102,0.1);
}

.stat-card.blue   .stat-icon { background: rgba(59,130,246,0.1); }
.stat-card.yellow .stat-icon { background: rgba(245,158,11,0.1); }
.stat-card.red    .stat-icon { background: rgba(239,68,68,0.1); }

.stat-value {
  font-size: 32px;
  font-weight: 800;
  color: var(--txt-primary);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 13px;
  color: var(--txt-secondary);
  font-weight: 500;
}

.stat-change {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  margin-top: 10px;
}

.stat-change.up   { color: var(--clr-success); }
.stat-change.down { color: var(--clr-danger); }

/* =====================================================
   الجداول (Tables)
   ===================================================== */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-md);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th {
  background: var(--bg-surface);
  color: var(--txt-secondary);
  font-size: 12px;
  font-weight: 700;
  padding: 12px 16px;
  text-align: right;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.data-table td {
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 14px;
  color: var(--txt-primary);
  vertical-align: middle;
}

.data-table tbody tr {
  transition: background var(--trans-fast);
}

.data-table tbody tr:hover { background: var(--bg-hover); }
.data-table tbody tr:last-child td { border-bottom: none; }

/* =====================================================
   الأزرار (Buttons)
   ===================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--trans-fast);
  text-decoration: none;
  white-space: nowrap;
  font-family: 'Tajawal', sans-serif;
}

.btn-primary {
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-primary-dark));
  color: #fff;
  box-shadow: 0 4px 14px rgba(37,211,102,0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37,211,102,0.45);
  color: #fff;
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--txt-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--bg-hover);
  border-color: var(--clr-primary);
  color: var(--txt-primary);
}

.btn-danger {
  background: rgba(239,68,68,0.1);
  color: var(--clr-danger);
  border: 1px solid rgba(239,68,68,0.3);
}

.btn-danger:hover {
  background: rgba(239,68,68,0.2);
  color: var(--clr-danger);
}

.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn-lg { padding: 14px 28px; font-size: 16px; }

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* =====================================================
   الحقول (Form Inputs)
   ===================================================== */
.form-group { margin-bottom: 20px; }

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--txt-secondary);
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  padding: 11px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--txt-primary);
  font-size: 14px;
  font-family: 'Tajawal', sans-serif;
  transition: all var(--trans-fast);
}

.form-control::placeholder { color: var(--txt-muted); }

.form-control:focus {
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(37,211,102,0.12);
  background: var(--bg-hover);
}

.form-control:invalid:not(:placeholder-shown) {
  border-color: var(--clr-danger);
}

textarea.form-control {
  resize: vertical;
  min-height: 100px;
}

select.form-control option { background: var(--bg-card); }

/* =====================================================
   الشارات (Badges)
   ===================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 700;
}

.badge-success  { background: rgba(37,211,102,0.12); color: var(--clr-primary); }
.badge-info     { background: rgba(59,130,246,0.12); color: var(--clr-info); }
.badge-warning  { background: rgba(245,158,11,0.12); color: var(--clr-warning); }
.badge-danger   { background: rgba(239,68,68,0.12);  color: var(--clr-danger); }
.badge-secondary{ background: rgba(255,255,255,0.06); color: var(--txt-secondary); }

/* =====================================================
   حالة المحادثة
   ===================================================== */
.status-open    { background: rgba(37,211,102,0.12); color: var(--clr-primary); }
.status-closed  { background: rgba(107,114,128,0.12); color: #6b7280; }
.status-pending { background: rgba(245,158,11,0.12); color: var(--clr-warning); }
.status-spam    { background: rgba(239,68,68,0.12);  color: var(--clr-danger); }

/* =====================================================
   واجهة الشات
   ===================================================== */
.chat-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  height: calc(100vh - var(--header-h) - 56px);
  gap: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.chat-list {
  border-left: 1px solid var(--border);
  overflow-y: auto;
  background: var(--bg-surface);
}

.chat-list-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-card);
  position: sticky;
  top: 0;
  z-index: 1;
}

.chat-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.03);
  cursor: pointer;
  transition: background var(--trans-fast);
  position: relative;
}

.chat-item:hover    { background: var(--bg-hover); }
.chat-item.active   { background: rgba(37,211,102,0.08); }
.chat-item .unread-dot {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  background: var(--clr-primary);
  border-radius: 50%;
}

.chat-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, #1a3a5c, #2563eb);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.chat-info { flex: 1; overflow: hidden; }
.chat-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--txt-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chat-preview {
  font-size: 12px;
  color: var(--txt-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 2px;
}

.chat-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  flex-shrink: 0;
}

.chat-time {
  font-size: 11px;
  color: var(--txt-muted);
}

.chat-unread {
  background: var(--clr-primary);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* منطقة الشات */
.chat-window {
  display: flex;
  flex-direction: column;
  background: var(--bg-body);
  background-image: radial-gradient(circle at 20% 80%, rgba(37,211,102,0.03) 0%, transparent 60%);
}

.chat-header {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-card);
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.message-bubble {
  max-width: 65%;
  position: relative;
}

.message-bubble.outbound { align-self: flex-start; }
.message-bubble.inbound  { align-self: flex-end; }

.bubble-content {
  padding: 10px 14px;
  border-radius: var(--radius-md);
  font-size: 14px;
  line-height: 1.5;
  position: relative;
}

.message-bubble.outbound .bubble-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md) 0 var(--radius-md) var(--radius-md);
  color: var(--txt-primary);
}

.message-bubble.inbound .bubble-content {
  background: linear-gradient(135deg, var(--clr-primary-dark), var(--clr-primary));
  color: #fff;
  border-radius: 0 var(--radius-md) var(--radius-md) var(--radius-md);
}

.bubble-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 4px;
  font-size: 11px;
  color: var(--txt-muted);
}

.message-bubble.inbound .bubble-meta { justify-content: flex-end; }

/* منطقة الكتابة */
.chat-input-area {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  background: var(--bg-card);
}

.chat-input-wrapper {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 8px 16px;
  transition: border-color var(--trans-fast);
}

.chat-input-wrapper:focus-within { border-color: var(--clr-primary); }

.chat-input {
  flex: 1;
  background: none;
  border: none;
  color: var(--txt-primary);
  font-size: 14px;
  font-family: 'Tajawal', sans-serif;
  resize: none;
  max-height: 100px;
  min-height: 24px;
}

.chat-send-btn {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-primary-dark));
  border: none;
  border-radius: 50%;
  color: #fff;
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--trans-fast);
  flex-shrink: 0;
}

.chat-send-btn:hover { transform: scale(1.1); box-shadow: var(--shadow-glow); }

/* =====================================================
   صفحة تسجيل الدخول
   ===================================================== */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-body);
  background-image:
    radial-gradient(circle at 15% 85%, rgba(37,211,102,0.08) 0%, transparent 50%),
    radial-gradient(circle at 85% 15%, rgba(0,229,255,0.06) 0%, transparent 50%);
  padding: 20px;
}

.auth-card {
  width: 100%;
  max-width: 440px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.auth-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--clr-primary-dark), var(--clr-primary), var(--clr-accent));
}

.auth-logo {
  text-align: center;
  margin-bottom: 32px;
}

.auth-logo-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-primary-dark));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  margin: 0 auto 16px;
  box-shadow: 0 8px 24px rgba(37,211,102,0.35);
}

.auth-title {
  font-size: 24px;
  font-weight: 800;
  color: var(--txt-primary);
  margin-bottom: 6px;
}

.auth-subtitle {
  font-size: 14px;
  color: var(--txt-secondary);
}

/* =====================================================
   تنبيهات
   ===================================================== */
.alert {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  font-size: 14px;
  margin-bottom: 16px;
  border: 1px solid transparent;
}

.alert-success {
  background: rgba(37,211,102,0.1);
  border-color: rgba(37,211,102,0.3);
  color: var(--clr-primary);
}

.alert-danger {
  background: rgba(239,68,68,0.1);
  border-color: rgba(239,68,68,0.3);
  color: var(--clr-danger);
}

.alert-warning {
  background: rgba(245,158,11,0.1);
  border-color: rgba(245,158,11,0.3);
  color: var(--clr-warning);
}

.alert-info {
  background: rgba(59,130,246,0.1);
  border-color: rgba(59,130,246,0.3);
  color: var(--clr-info);
}

/* =====================================================
   قائمة الأنشطة
   ===================================================== */
.activity-list { display: flex; flex-direction: column; gap: 2px; }

.activity-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.activity-item:last-child { border-bottom: none; }

.activity-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}

.activity-content { flex: 1; }

.activity-text {
  font-size: 13px;
  color: var(--txt-primary);
}

.activity-text strong { color: var(--clr-primary); }

.activity-time {
  font-size: 11px;
  color: var(--txt-muted);
  margin-top: 3px;
}

/* =====================================================
   البحث
   ===================================================== */
.search-box {
  position: relative;
  display: flex;
  align-items: center;
}

.search-box .search-icon {
  position: absolute;
  right: 12px;
  color: var(--txt-muted);
  font-size: 16px;
  pointer-events: none;
}

.search-box .form-control {
  padding-right: 38px;
}

/* =====================================================
   شريط التقدم
   ===================================================== */
.progress-bar {
  height: 6px;
  background: var(--bg-surface);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--clr-primary-dark), var(--clr-primary));
  transition: width 0.6s ease;
}

/* =====================================================
   المودال
   ===================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--trans-normal);
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 540px;
  box-shadow: var(--shadow-lg);
  transform: scale(0.95) translateY(10px);
  transition: transform var(--trans-normal);
}

.modal-overlay.open .modal { transform: scale(1) translateY(0); }

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 24px;
  border-bottom: 1px solid var(--border);
}

.modal-title { font-size: 18px; font-weight: 700; color: var(--txt-primary); }

.modal-body { padding: 24px; }

.modal-footer {
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: flex-end;
  padding: 16px 24px;
  border-top: 1px solid var(--border);
}

.modal-close {
  width: 32px;
  height: 32px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--txt-secondary);
  transition: all var(--trans-fast);
  font-size: 16px;
}

.modal-close:hover { background: var(--bg-hover); color: var(--txt-primary); }

/* =====================================================
   لا توجد بيانات
   ===================================================== */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--txt-muted);
}

.empty-state-icon { font-size: 48px; margin-bottom: 16px; opacity: 0.5; }
.empty-state-title { font-size: 18px; color: var(--txt-secondary); margin-bottom: 8px; }
.empty-state-text { font-size: 14px; }

/* =====================================================
   جدول الاتصالات
   ===================================================== */
.contact-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--clr-primary-dark), #0f4c3a);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  color: #fff;
}

/* =====================================================
   Spinner
   ===================================================== */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255,255,255,0.2);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* =====================================================
   انيميشن الدخول
   ===================================================== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes pulse {
  0%,100% { opacity: 1; }
  50%      { opacity: 0.5; }
}

.animate-fade-up { animation: fadeInUp 0.4s ease forwards; }
.animate-fade    { animation: fadeIn 0.4s ease forwards; }

/* تأخيرات الانيميشن للبطاقات */
.stat-card:nth-child(1) { animation: fadeInUp 0.4s ease 0.0s both; }
.stat-card:nth-child(2) { animation: fadeInUp 0.4s ease 0.1s both; }
.stat-card:nth-child(3) { animation: fadeInUp 0.4s ease 0.2s both; }
.stat-card:nth-child(4) { animation: fadeInUp 0.4s ease 0.3s both; }

/* =====================================================
   نبضة الاتصال
   ===================================================== */
.online-dot {
  width: 8px;
  height: 8px;
  background: var(--clr-primary);
  border-radius: 50%;
  display: inline-block;
  position: relative;
}

.online-dot::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background: var(--clr-primary);
  opacity: 0.3;
  animation: pulse 1.5s ease-in-out infinite;
}

/* =====================================================
   Responsive — التجاوب
   ===================================================== */
@media (max-width: 1200px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 992px) {
  .chat-layout { grid-template-columns: 280px 1fr; }
}

@media (max-width: 768px) {
  :root { --sidebar-w: 0px; }

  .sidebar {
    transform: translateX(100%);
    width: 280px;
    --sidebar-w: 280px;
  }

  .sidebar.open { transform: translateX(0); }

  .app-main { margin-right: 0; }

  .header { right: 0; }

  .sidebar-toggle { display: flex; }

  .page-content { padding: 16px; padding-top: calc(var(--header-h) + 16px); }

  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }

  .chat-layout {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
  }

  .chat-list {
    height: 200px;
    overflow-x: auto;
    display: flex;
    flex-direction: row;
    border-left: none;
    border-bottom: 1px solid var(--border);
  }

  .chat-item {
    flex-direction: column;
    min-width: 120px;
    align-items: center;
    text-align: center;
    padding: 12px;
    border-bottom: none;
    border-left: 1px solid rgba(255,255,255,0.03);
  }

  .chat-info { width: 100%; }
  .chat-name { font-size: 12px; }

  .header-user-name { display: none; }

  .footer { flex-direction: column; gap: 8px; text-align: center; }

  .modal { margin: 10px; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }

  .auth-card { padding: 28px 20px; }

  .stat-value { font-size: 26px; }

  .page-title { font-size: 16px; }
}

/* =====================================================
   Overlay للموبايل
   ===================================================== */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 999;
  backdrop-filter: blur(2px);
}

@media (max-width: 768px) {
  .sidebar-overlay.open { display: block; }
}

/* =====================================================
   مؤشر حالة API
   ===================================================== */
.api-status {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: rgba(239,68,68,0.08);
  border: 1px solid rgba(239,68,68,0.2);
  border-radius: var(--radius-md);
  font-size: 12px;
  color: var(--clr-danger);
}

.api-status.connected {
  background: rgba(37,211,102,0.08);
  border-color: rgba(37,211,102,0.2);
  color: var(--clr-primary);
}

/* =====================================================
   الصفحة 404 / خطأ
   ===================================================== */
.error-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - var(--header-h) - 80px);
  text-align: center;
  padding: 40px;
}

.error-code {
  font-size: 96px;
  font-weight: 900;
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 16px;
}

/* =====================================================
   فلتر / Toolbar
   ===================================================== */
.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.toolbar-actions { margin-right: auto; display: flex; gap: 10px; }

/* =====================================================
   ترقيم الصفحات
   ===================================================== */
.pagination {
  display: flex;
  align-items: center;
  gap: 6px;
  justify-content: center;
  padding: 16px 0;
}

.page-btn {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--txt-secondary);
  transition: all var(--trans-fast);
  text-decoration: none;
}

.page-btn:hover, .page-btn.active {
  background: var(--clr-primary);
  border-color: var(--clr-primary);
  color: #fff;
}

/* =====================================================
   رسم بياني (Chart placeholder)
   ===================================================== */
.chart-placeholder {
  height: 200px;
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 20px 10px 0;
}

.chart-bar {
  flex: 1;
  border-radius: 4px 4px 0 0;
  background: rgba(37,211,102,0.15);
  position: relative;
  transition: height 0.5s ease;
  min-height: 4px;
}

.chart-bar::after {
  content: attr(data-value);
  position: absolute;
  top: -22px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 10px;
  color: var(--txt-muted);
  white-space: nowrap;
}

.chart-bar.sent-bar   { background: rgba(37,211,102,0.3); }
.chart-bar.recv-bar   { background: rgba(59,130,246,0.3); }
.chart-bar:hover { filter: brightness(1.3); }

/* =====================================================
   Tooltip
   ===================================================== */
[data-tooltip] { position: relative; }

[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  font-size: 11px;
  color: var(--txt-primary);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--trans-fast);
  z-index: 100;
}

[data-tooltip]:hover::after { opacity: 1; }