#tech-stack {
  padding: 100px 0;
  background: #fafbff;
  text-align: center;
}

/* TITLE */
.tech-title {
  font-size: 44px;
  font-weight: 900;
  color: #1e293b;
  margin-bottom: 12px;
}

.tech-subtitle {
  max-width: 720px;
  margin: 0 auto 60px;
  font-size: 16px;
  color: #0081CC;
  line-height: 1.6;
}

/* TABS */
.tech-tabs {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 60px;
  position: relative;
}

.tab-btn {
  padding: 10px 25px;
  border: none;
  background: #e0e7ff;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  position: relative;
  border-radius: 8px;
  color: #3c7ee0;
  transition: all 0.3s ease;
}

.tab-btn.active,
.tab-btn:hover {
  background: #3c7ee0;
  color: #ffffff;
}

/* TECH GRID */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 30px;
  max-width: 1100px;
  margin: 0 auto;
}

/* NEXT-LEVEL TECH ITEM */
.tech-item {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, #ffffff, #f0f4ff);
  padding: 25px 20px;
  border-radius: 20px;
  box-shadow: 0 12px 25px rgba(0, 0, 0, 0.08);
  transition: transform 0.4s ease, box-shadow 0.4s ease, background 0.4s ease;
  position: relative;
  overflow: hidden;
}

.tech-item.show {
  display: flex;
}

.tech-item::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(79,70,229,0.15) 0%, transparent 70%);
  transform: rotate(45deg);
  transition: all 0.5s ease;
}

.tech-item:hover::before {
  transform: rotate(0deg);
  opacity: 1;
}

.tech-item img {
  width: 60px;
  height: 60px;
  margin-bottom: 15px;
  transition: transform 0.3s ease;
}

.tech-item:hover img {
  transform: scale(1.2) rotate(10deg);
}

.tech-item p {
  font-size: 14px;
  font-weight: 700;
  color: #1e293b;
  margin: 0;
}

/* HOVER EFFECT */
.tech-item:hover {
  transform: translateY(-10px) scale(1.05);
  box-shadow: 0 18px 35px rgba(0, 0, 0, 0.15);
  background: linear-gradient(135deg, #e0e7ff, #c7d2fe);
}

/* RESPONSIVE */
@media (max-width: 991px) {
  #tech-stack { padding: 70px 0; }
  .tech-title { font-size: 36px; }
  .tech-subtitle { font-size: 15px; margin-bottom: 50px; }
}

@media (max-width: 576px) {
  #tech-stack { padding: 50px 0; }
  .tech-title { font-size: 28px; }
  .tech-subtitle { font-size: 14px; margin-bottom: 35px; }
  .tab-btn { font-size: 14px; padding: 8px 16px; }
  .tech-grid { grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 20px; }
  .tech-item img { width: 50px; height: 50px; }
}