body {
  margin: 0;
  font-family: var(--font-family), serif;
  background: var(--background-color);
  color: var(--text-color);
}

header {
  background-color: rgba(15, 20, 21, 0.95);
  color: var(--secondary-color);
  text-align: center;
  padding: 4rem 2rem;
  border-bottom: 2px solid rgba(212, 175, 55, 0.2);
}

header h1 {
  margin: 0;
  font-size: 3rem;
  font-family: var(--font-tech);
  color: var(--primary-color);
  text-shadow: 0 0 15px rgba(212, 175, 55, 0.6);
}

header p {
  margin-top: 1rem;
  font-size: 1.25rem;
  font-style: italic;
  color: var(--accent-color);
}

/* Filter Controls */
.filter-controls {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 2rem;
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(10px);
  border-top: 1px solid rgba(212, 175, 55, 0.1);
  border-bottom: 1px solid rgba(212, 175, 55, 0.1);
}

.filter-controls button {
  padding: 0.75rem 1.25rem;
  border: none;
  border-radius: 999px;
  background-color: rgba(212, 175, 55, 0.1);
  color: var(--primary-color);
  font-weight: bold;
  font-family: var(--font-tech);
  cursor: pointer;
  transition: background-color 0.3s ease, transform 0.2s ease;
}

.filter-controls button:hover {
  background-color: var(--primary-color);
  color: #0F1415;
  transform: scale(1.05);
}

.filter-controls button.active {
  background-color: var(--accent-color);
  color: #0F1415;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 3rem;
  padding: 4rem 2rem;
}

.service-card {
  background: linear-gradient(135deg, rgba(255,255,255,0.02), rgba(0,196,239,0.02));
  border-radius: 1.5rem;
  padding: 2.5rem;
  text-align: center;
  backdrop-filter: blur(20px);
  border: 1px solid rgba(212, 175, 55, 0.15);
  box-shadow: 0 10px 30px rgba(0, 196, 239, 0.1);
  color: var(--text-color);
  position: relative;
  transition: all var(--transition-speed) ease;
  overflow: hidden;
  opacity: 1;
  transform: scale(1);
}

.service-card:hover {
  transform: translateY(-10px) scale(1.03);
  box-shadow: 0 15px 40px rgba(0, 196, 239, 0.3);
}

.service-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(212,175,55,0.08) 0%, transparent 70%);
  animation: rotateGlow 12s linear infinite;
  z-index: 0;
}

.service-card i {
  font-size: 2.5rem;
  color: var(--highlight-color);
  margin-bottom: 1.5rem;
  position: relative;
  z-index: 1;
}

.service-title {
  font-size: 1.7rem;
  font-weight: bold;
  font-family: var(--font-tech);
  color: var(--primary-color);
  margin-bottom: 1rem;
  position: relative;
  z-index: 1;
}

.service-price {
  font-size: 1.3rem;
  color: var(--accent-color);
  margin-bottom: 1.5rem;
  font-family: var(--font-family);
  position: relative;
  z-index: 1;
}

/* Filtering Transition */
.service-card.hide {
  opacity: 0;
  pointer-events: none;
  transform: scale(0.9);
  transition: all 0.3s ease;
}

.back-home {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 2rem;
  text-align: center;
}

footer {
  text-align: center;
  padding: 2rem;
  background: #0F1415;
  color: var(--text-color);
  font-size: 1rem;
  border-top: 2px solid rgba(212, 175, 55, 0.2);
  position: relative;
  overflow: hidden;
}

footer::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(0, 196, 239, 0.03) 0%, transparent 70%);
  animation: rotateGlow 15s linear infinite;
  z-index: 0;
}

footer p {
  position: relative;
  z-index: 1;
}

/* Animations */
@keyframes rotateGlow {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}