/* ========================================
   Expertise Styles - NexzenSoft Website
   ======================================== */

/* === Expertise Section === */
.expertise-section {
  background: linear-gradient(135deg, var(--white) 0%, #f8f9fa 100%);
  position: relative;
  overflow: hidden;
  padding: 6rem 0;
}

.expertise-section::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(26, 42, 108, 0.05) 0%, transparent 70%);
  border-radius: 50%;
  z-index: 1;
}

.expertise-section::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(243, 108, 33, 0.05) 0%, transparent 70%);
  border-radius: 50%;
  z-index: 1;
}

.expertise-section .container {
  position: relative;
  z-index: 2;
}

.expertise-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.expertise-card {
  background: var(--white);
  padding: 2rem;
  border-radius: 15px;
  box-shadow: 0 8px 25px rgba(0,0,0,0.1);
  transition: all 0.3s ease;
  border: 1px solid rgba(26, 42, 108, 0.08);
  position: relative;
  overflow: hidden;
}

.expertise-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-blue), var(--accent-orange));
  z-index: 2;
}

.expertise-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 35px rgba(0,0,0,0.15);
  border-color: var(--accent-orange);
}

.expertise-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-blue), var(--accent-orange));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
  box-shadow: 0 5px 15px rgba(26, 42, 108, 0.3);
  position: relative;
  z-index: 3;
}

.expertise-title {
  font-size: 1.3rem;
  color: var(--primary-blue);
  margin-bottom: 1rem;
  font-weight: 600;
  position: relative;
  z-index: 3;
}

.expertise-description {
  color: var(--black);
  line-height: 1.6;
  margin: 0;
  position: relative;
  z-index: 3;
  font-size: 0.95rem;
}

/* === Enhanced Animations === */
@keyframes expertiseSlideIn {
  from {
    opacity: 0;
    transform: translateY(30px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.expertise-card:nth-child(odd) {
  animation: expertiseSlideIn 0.8s ease-out;
}

.expertise-card:nth-child(even) {
  animation: expertiseSlideIn 0.8s ease-out 0.2s;
  animation-fill-mode: both;
}

/* === Responsive Design === */
@media (max-width: 1200px) {
  .expertise-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .expertise-section {
    padding: 4rem 0;
  }

  .expertise-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-top: 2rem;
  }

  .expertise-card {
    padding: 1.5rem;
  }

  .expertise-icon {
    width: 50px;
    height: 50px;
    font-size: 1.2rem;
    margin-bottom: 1.25rem;
  }

  .expertise-title {
    font-size: 1.2rem;
    margin-bottom: 0.75rem;
  }

  .expertise-description {
    font-size: 0.9rem;
  }

  .expertise-section::before,
  .expertise-section::after {
    width: 200px;
    height: 200px;
  }
}

@media (max-width: 576px) {
  .expertise-section {
    padding: 3rem 0;
  }

  .expertise-card {
    padding: 1.25rem;
    border-radius: 10px;
  }

  .expertise-icon {
    width: 45px;
    height: 45px;
    font-size: 1.1rem;
    margin-bottom: 1rem;
  }

  .expertise-title {
    font-size: 1.1rem;
  }

  .expertise-description {
    font-size: 0.85rem;
  }
}