/* Main Styles */
:root {
  /* Color system */
  --color-black: #000000;
  --color-white: #fff;
  --color-gray-100: #f8f9fa;
  --color-gray-200: #e9ecef;
  --color-gray-300: #dee2e6;
  --color-gray-400: #ced4da;
  --color-gray-500: #adb5bd;
  --color-gray-600: #6c757d;
  --color-gray-700: #495057;
  --color-gray-800: #343a40;
  --color-gray-900: #212529;
  
  --color-primary: #414da2;
  --color-secondary: #444;
  --color-accent: #21a2bb;
  --color-success: #28a745;
  --color-warning: #ffc107;
  --color-error: #dc3545;
  
  /* Typography */
  --font-primary: 'Montserrat', sans-serif;
  
  /* Spacing */
  --spacing-1: 0.8rem;
  --spacing-2: 1.6rem;
  --spacing-3: 2.4rem;
  --spacing-4: 3.2rem;
  --spacing-5: 4.0rem;
  --spacing-6: 4.8rem;
  --spacing-7: 5.6rem;
  --spacing-8: 6.4rem;
  
  /* Other */
  --border-radius: 0;
  --box-shadow: 0 0.5rem 2rem rgba(0, 0, 0, 0.25);
  --transition: all 0.3s ease;
}

/* Container */
.container {
  width: 100%;
  max-width: 124rem;
  margin: 0 auto;
  padding: 0 var(--spacing-2);
}

/* Typography */
h1 {
  font-size: 4.8rem;
  font-weight: 600;
}

h2 {
  font-size: 3.6rem;
  font-weight: 600;
}

h3 {
  font-size: 2.4rem;
  font-weight: 600;
}

h4 {
  font-size: 1.8rem;
  font-weight: 600;
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-5);
  position: relative;
  padding-bottom: var(--spacing-2);
  color: var(--color-white);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 8rem;
  height: 0.3rem;
  background-color: var(--color-primary);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 1.2rem 2.4rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1rem;
  transition: var(--transition);
  border: 0.2rem solid transparent;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.btn-primary:hover {
  background-color: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-secondary {
  background-color: var(--color-gray-900);
  color: var(--color-white);
  border: 2px solid var(--color-gray-800);
}

.btn-secondary:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

.btn-text {
  display: inline-flex;
  align-items: center;
  font-weight: 600;
  color: var(--color-primary);
  transition: var(--transition);
}

.btn-text i {
  margin-left: 0.8rem;
  transition: transform 0.3s ease;
}

.btn-text:hover {
  color: var(--color-white);
}

.btn-text:hover i {
  transform: translateX(0.5rem);
}

/* Sections */
section {
  padding: var(--spacing-6) 0;
  background-color: var(--color-black);
  color: var(--color-white);
}

/* Back to top button */
.back-to-top {
  position: fixed;
  bottom: 3rem;
  right: 3rem;
  width: 4.5rem;
  height: 4.5rem;
  background-color: var(--color-gray-900);
  color: var(--color-white);
  border-radius: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
  border: 1px solid var(--color-gray-800);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

/* Innovation Section */
.innovation-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(25rem, 1fr));
  gap: var(--spacing-4);
  margin-top: var(--spacing-4);
}

.innovation-card {
  text-align: center;
  padding: var(--spacing-4);
  background-color: var(--color-gray-900);
  border: 1px solid var(--color-gray-800);
  transition: var(--transition);
}

.innovation-card:hover {
  transform: translateY(-1rem);
  border-color: var(--color-primary);
}

.innovation-card i {
  font-size: 4rem;
  color: var(--color-primary);
  margin-bottom: var(--spacing-2);
}

.innovation-card h3 {
  font-size: 2rem;
  margin-bottom: var(--spacing-2);
  color: var(--color-white);
}

.innovation-card p {
  color: var(--color-gray-400);
  margin-bottom: 0;
}

/* Awards Section */
.awards-slider {
  position: relative;
  overflow: hidden;
  padding: var(--spacing-4) 0;
}

.awards-wrapper {
  display: flex;
  gap: var(--spacing-4);
}

.award-card {
  flex: 0 0 33.333%;
  text-align: center;
  padding: var(--spacing-3);
  background-color: var(--color-gray-900);
  border: 1px solid var(--color-gray-800);
  transition: var(--transition);
}

.award-card:hover {
  transform: translateY(-1rem);
  border-color: var(--color-primary);
}

.award-img {
  width: 12rem;
  height: 12rem;
  object-fit: cover;
  margin: 0 auto var(--spacing-3);
  border-radius: 50%;
  border: 2px solid var(--color-primary);
}

.award-card h3 {
  font-size: 2rem;
  margin-bottom: var(--spacing-1);
  color: var(--color-white);
}

.award-card p {
  color: var(--color-gray-400);
  margin-bottom: 0;
}

/* Instagram Feed */
.instagram-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-2);
}

.instagram-item {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
}

.instagram-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.instagram-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

.instagram-overlay i {
  font-size: 3rem;
  color: var(--color-white);
  margin-bottom: var(--spacing-1);
}

.instagram-overlay span {
  color: var(--color-white);
  font-weight: 600;
}

.instagram-item:hover img {
  transform: scale(1.1);
}

.instagram-item:hover .instagram-overlay {
  opacity: 1;
}

/* Media Queries */
@media (max-width: 992px) {
  html {
    font-size: 56.25%; /* 9px */
  }
  
  h1 {
    font-size: 4rem;
  }
  
  h2 {
    font-size: 3.2rem;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 50%; /* 8px */
  }
  
  section {
    padding: var(--spacing-5) 0;
  }
  
  .innovation-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .award-card {
    flex: 0 0 100%;
  }
  
  .instagram-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 576px) {
  h1 {
    font-size: 3.2rem;
  }
  
  h2 {
    font-size: 2.8rem;
  }
  
  h3 {
    font-size: 2rem;
  }
  
  .innovation-grid {
    grid-template-columns: 1fr;
  }
  
  .instagram-grid {
    grid-template-columns: 1fr;
  }
}