body {
      font-family: 'Cairo', sans-serif;
      background-color: #eef2f7;
      color: #222;
      transition: background 0.3s ease, color 0.3s ease;
    }
    body.dark-mode {
      background-color: #121212;
      color: #f1f1f1;
    }

    /* كارد البحث */
    .main-card {
      background: #ffffff;
      border-radius: 12px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.12);
      margin-bottom: 30px;
      transition: background 0.3s ease, color 0.3s ease;
    }
    body.dark-mode .main-card {
      background: #1f1f1f;
      color: #f1f1f1;
    }

    /* القاعدة العامة للبطاقات */
    .session-card {
      border-radius: 15px;
      padding: 15px;
      min-height: 200px;
      box-shadow: 0px 5px 15px rgba(0,0,0,0.1);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }
    .session-card:hover {
      transform: translateY(-6px);
      box-shadow: 0px 12px 25px rgba(0,0,0,0.2);
    }

    /* ألوان مختلفة (Light Mode) */
    .card-blue    { background: linear-gradient(135deg, #e3f2fd, #bbdefb); color:#222; }
    .card-green   { background: linear-gradient(135deg, #f1f8e9, #dcedc8); color:#222; }
    .card-orange  { background: linear-gradient(135deg, #fff3e0, #ffe0b2); color:#222; }
    .card-pink    { background: linear-gradient(135deg, #fce4ec, #f8bbd0); color:#222; }
    .card-purple  { background: linear-gradient(135deg, #ede7f6, #d1c4e9); color:#222; }

    /* الوضع المظلم */
    body.dark-mode .card-blue   { background: linear-gradient(135deg, #1e3a5f, #2a4d7a); color:#f1f1f1; }
    body.dark-mode .card-green  { background: linear-gradient(135deg, #1b5e20, #2e7d32); color:#f1f1f1; }
    body.dark-mode .card-orange { background: linear-gradient(135deg, #e65100, #ef6c00); color:#fff; }
    body.dark-mode .card-pink   { background: linear-gradient(135deg, #880e4f, #ad1457); color:#fff; }
    body.dark-mode .card-purple { background: linear-gradient(135deg, #311b92, #4527a0); color:#fff; }
/* البطاقة العامة في لوحة الطالب */
.dashboard-card {
  background: #ffffff;
  border-radius: 15px;
  padding: 25px;
  box-shadow: 0 6px 15px rgba(0,0,0,0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease, color 0.3s ease;
}

.dashboard-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 25px rgba(0,0,0,0.2);
}

body.dark-mode .dashboard-card {
  background: #1e1e1e;
  color: #f1f1f1;
  box-shadow: 0 6px 15px rgba(255,255,255,0.05);
}

/* الأزرار داخل لوحة الطالب */
.dashboard-card .btn {
  border-radius: 12px;
  padding: 15px;
  font-size: 1.1rem;
  transition: transform 0.3s ease, background-color 0.3s ease;
}

.dashboard-card .btn:hover {
  transform: scale(1.05);
}

/* الوضع المظلم للأزرار */
body.dark-mode .btn-outline-primary {
  border-color: #64b5f6;
  color: #64b5f6;
}
body.dark-mode .btn-outline-primary:hover {
  background-color: #64b5f6;
  color: #121212;
}

body.dark-mode .btn-outline-success {
  border-color: #81c784;
  color: #81c784;
}
body.dark-mode .btn-outline-success:hover {
  background-color: #81c784;
  color: #121212;
}

body.dark-mode .btn-outline-secondary {
  border-color: #b0bec5;
  color: #b0bec5;
}
body.dark-mode .btn-outline-secondary:hover {
  background-color: #b0bec5;
  color: #121212;
}
.list-group-item.fw-bold {
  background: #e3f2fd;
}

.stat-card {
  background: #fff;
  border-radius: 15px;
  padding: 25px;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.notification-item {
  padding: 10px;
  border-bottom: 1px solid #eee;
}
.notification-item:last-child {
  border-bottom: none;
}

.stat-card .badge {
  font-size: 1rem;
  padding: 8px 15px;
  border-radius: 12px;
}
.table-success.fw-bold {
  font-size: 1.05rem;
}