body {
  font-family: 'Cairo', sans-serif;
  background-color: #eef2f7; /* خلفية فاتحة */
  color: #222;
  transition: background 0.3s ease, color 0.3s ease;
}

body.dark-mode {
  background-color: #121212; /* خلفية مظلمة */
  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;
}

/* بطاقات الجلسات */
.session-card {
  border-radius: 15px;
  color: #222;
  padding: 15px;
  box-shadow: 0px 5px 15px rgba(0,0,0,0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  min-height: 200px;
}

/* تأثير hover */
.session-card:hover {
  transform: translateY(-6px);
  box-shadow: 0px 12px 25px rgba(0,0,0,0.2);
}

/* ألوان مختلفة لكل بطاقة */
.session-card:nth-child(1n) {
  background: linear-gradient(135deg, #e3f2fd, #bbdefb); /* أزرق فاتح */
}
.session-card:nth-child(2n) {
  background: linear-gradient(135deg, #f1f8e9, #dcedc8); /* أخضر فاتح */
}
.session-card:nth-child(3n) {
  background: linear-gradient(135deg, #fff3e0, #ffe0b2); /* برتقالي فاتح */
}
.session-card:nth-child(4n) {
  background: linear-gradient(135deg, #fce4ec, #f8bbd0); /* وردي فاتح */
}
.session-card:nth-child(5n) {
  background: linear-gradient(135deg, #ede7f6, #d1c4e9); /* بنفسجي فاتح */
}

/* الوضع المظلم */
body.dark-mode .session-card:nth-child(1n) {
  background: linear-gradient(135deg, #1e3a5f, #2a4d7a);
  color: #f1f1f1;
}
body.dark-mode .session-card:nth-child(2n) {
  background: linear-gradient(135deg, #1b5e20, #2e7d32);
  color: #f1f1f1;
}
body.dark-mode .session-card:nth-child(3n) {
  background: linear-gradient(135deg, #e65100, #ef6c00);
  color: #fff;
}
body.dark-mode .session-card:nth-child(4n) {
  background: linear-gradient(135deg, #880e4f, #ad1457);
  color: #fff;
}
body.dark-mode .session-card:nth-child(5n) {
  background: linear-gradient(135deg, #311b92, #4527a0);
  color: #fff;
}

/* العناوين داخل البطاقات */
.session-card h5 {
  font-weight: bold;
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.session-card p {
  font-size: 0.95rem;
  margin-bottom: 12px;
}