* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  background: #0b1220;
  color: #e8eefc;
}

.container {
  width: 92%;
  max-width: 1100px;
  margin: auto;
  padding: 20px 0;
}

.header {
  background: linear-gradient(135deg, #1d4ed8, #0ea5e9);
  padding: 30px 0;
  text-align: center;
}

.header h1 {
  font-size: 2rem;
  margin-bottom: 10px;
}

.header p {
  opacity: 0.9;
  font-size: 1rem;
}

.controls {
  display: flex;
  gap: 12px;
  margin: 20px 0;
  flex-wrap: wrap;
}

.controls input, .controls select {
  padding: 12px;
  border-radius: 10px;
  border: none;
  outline: none;
  font-size: 1rem;
  width: 100%;
  max-width: 520px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 15px;
  margin-top: 15px;
}

.card {
  background: #121b2f;
  border-radius: 15px;
  padding: 15px;
  box-shadow: 0 0 12px rgba(0,0,0,0.4);
  transition: 0.2s ease-in-out;
  cursor: pointer;
}

.card:hover {
  transform: translateY(-4px);
}

.card h3 {
  margin-bottom: 8px;
  color: #93c5fd;
}

.card p {
  opacity: 0.85;
  font-size: 0.95rem;
  margin-bottom: 10px;
}

.badge {
  display: inline-block;
  background: #1e293b;
  padding: 6px 10px;
  border-radius: 20px;
  font-size: 0.85rem;
  margin-right: 6px;
}

.footer {
  text-align: center;
  padding: 20px;
  opacity: 0.7;
}

.backBtn {
  display: inline-block;
  background: #0b1220;
  padding: 8px 14px;
  border-radius: 10px;
  color: white;
  text-decoration: none;
  margin-bottom: 10px;
}

.tagsBox {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 20px;
}

.tag {
  background: #1e293b;
  padding: 8px 12px;
  border-radius: 12px;
  font-size: 0.9rem;
}

.tabButtons {
  margin-top: 25px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.tabBtn {
  padding: 10px 14px;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  background: #1e293b;
  color: white;
  font-weight: bold;
}

.tabBtn.active {
  background: #38bdf8;
  color: #0b1220;
}

.tabContent {
  margin-top: 20px;
  background: #121b2f;
  padding: 18px;
  border-radius: 15px;
}

.sectionBox {
  margin-bottom: 18px;
}

.sectionBox h3 {
  margin-bottom: 8px;
  color: #60a5fa;
}

.sectionBox ul {
  padding-left: 18px;
}

.sectionBox li {
  margin-bottom: 6px;
  opacity: 0.9;
}