* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Arial, Helvetica, sans-serif;
  background: #0a0a1a;
  color: #e0e0ff;
  min-height: 100vh;
  background-image: 
    radial-gradient(circle at 20% 30%, rgba(120, 40, 200, 0.25) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(40, 80, 220, 0.25) 0%, transparent 40%),
    radial-gradient(circle at 50% 50%, rgba(180, 40, 180, 0.15) 0%, transparent 50%);
  background-attachment: fixed;
}

/* ===== FELÜLRE SZÉLES KÉP ===== */
.header-banner {
  width: 100%;
  height: 260px;
  position: relative;
  overflow: hidden;
}

.header-banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: brightness(0.7);
}

.header-banner .overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,10,26,0.95) 0%, transparent 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
  padding-bottom: 30px;
  text-align: center;
}

.header-banner .overlay h1 {
  font-size: 48px;
  font-weight: 800;
  color: #fff;
  text-shadow: 0 0 20px rgba(160, 80, 255, 0.8);
  letter-spacing: 2px;
}

.header-banner .overlay p {
  font-size: 18px;
  color: #c0b0ff;
  margin-top: 6px;
}

/* ===== FŐ TARTALOM ===== */
.main-wrapper {
  max-width: 1100px;
  margin: 40px auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

/* ===== KÁRTYÁK ===== */
.card {
  background: rgba(20, 20, 45, 0.75);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(140, 100, 255, 0.25);
  border-radius: 18px;
  padding: 28px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.card h2 {
  font-size: 22px;
  margin-bottom: 18px;
  color: #d0c0ff;
  border-bottom: 1px solid rgba(140, 100, 255, 0.3);
  padding-bottom: 10px;
}

.card p {
  line-height: 1.65;
  color: #c8c0e8;
  font-size: 15px;
}

/* ===== ELADÓ RÉSZ ===== */
.seller-card {
  margin-top: 25px;
}

.seller-info {
  display: flex;
  gap: 20px;
  align-items: center;
}

.seller-img {
  width: 110px;
  height: 110px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid #8b5cf6;
  box-shadow: 0 0 20px rgba(139, 92, 246, 0.5);
}

.seller-details {
  flex: 1;
}

.info-row {
  margin-bottom: 12px;
}

.info-row .label {
  display: block;
  font-size: 13px;
  color: #a090d0;
  margin-bottom: 3px;
}

.info-row .value {
  font-size: 16px;
  font-weight: 600;
  color: #e8e0ff;
  background: rgba(139, 92, 246, 0.15);
  padding: 6px 12px;
  border-radius: 8px;
  display: inline-block;
}

/* ===== TERMÉK DOBOZ ===== */
.product-box {
  text-align: center;
}

.product-icon {
  font-size: 60px;
  margin-bottom: 15px;
}

.product-box h3 {
  font-size: 24px;
  margin-bottom: 12px;
  color: #fff;
}

.product-box p {
  margin-bottom: 25px;
}

.buy-btn {
  background: linear-gradient(135deg, #7c3aed, #a855f7);
  color: white;
  border: none;
  padding: 14px 32px;
  font-size: 16px;
  font-weight: 600;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.25s ease;
  box-shadow: 0 4px 20px rgba(124, 58, 237, 0.4);
}

.buy-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(124, 58, 237, 0.6);
}

/* ===== FOOTER ===== */
.footer {
  text-align: center;
  padding: 30px 20px;
  color: #7060a0;
  font-size: 13px;
  margin-top: 20px;
}

/* ===== MOBIL ===== */
@media (max-width: 800px) {
  .main-wrapper {
    grid-template-columns: 1fr;
  }
  
  .header-banner .overlay h1 {
    font-size: 36px;
  }
  
  .seller-info {
    flex-direction: column;
    text-align: center;
  }
}