/* ===============================================
   FOOTER.CSS - Footer Styling & DNA Animation
   =============================================== */

/* Footer Container */
footer.bg-dark {
  background: linear-gradient(135deg, var(--color-blue-darkest), var(--color-blue-darker)) !important;
  border-top: 4px solid var(--color-blue-medium);
  position: relative;
  overflow: hidden;
  padding-top: var(--space-lg);
  margin-top: var(--space-lg);
}

footer.bg-dark::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-yellow-medium), var(--color-green-medium), var(--color-blue-medium));
}

/* Footer Content */
footer .container-fluid {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 0;
}

/* Footer row padding for content spacing */
footer .row {
  margin: 0;
  padding: 0 var(--space-lg);
}

/* Responsive footer padding for larger screens */
@media (min-width: 1400px) {
  footer .row {
    padding: 0 var(--spacing-xxl);
  }
}

@media (min-width: 1800px) {
  footer .row {
    padding: 0 var(--spacing-xxxl);
  }
}

/* Section Headers */
footer h5 {
  font-family: 'Montserrat';
  color: var(--color-yellow-light);
  font-weight: 100;
  font-style: normal;
  font-size: 1.2rem;
  margin-bottom: var(--space-md);
  position: relative;
  display: inline-block;
}

footer h5::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-blue-medium), var(--color-yellow-medium));
  border-radius: 1px;
}

/* Footer Text */
footer .text-white {
  color: var(--color-blue-light) !important;
  line-height: 1.7;
}

footer .text-white.text-decoration-none:hover {
  color: var(--color-yellow-medium) !important;
  transition: all 0.3s ease;
  transform: translateX(5px);
}

/* Social Links */
footer .list-inline-item a {
  color: var(--color-blue-light) !important;
  background: rgba(74, 113, 143, 0.1);
  border: 1px solid var(--color-blue-medium);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 0 0.25rem;
  transition: all 0.3s ease;
  text-decoration: none;
}

footer .list-inline-item a:hover {
  color: var(--color-yellow-light) !important;
  background: linear-gradient(135deg, var(--color-blue-medium), var(--color-blue-dark));
  border-color: var(--color-yellow-medium);
  transform: translateY(-3px) scale(1.1);
  box-shadow: 0 6px 20px rgba(6, 41, 67, 0.4);
}

/* Admin Login Icon */
footer .text-white i.bi-pencil-square {
  color: rgba(128, 128, 94, 0.6) !important;
  font-size: 0.9rem;
  transition: all 0.3s ease;
}

footer .text-white:hover i.bi-pencil-square {
  color: var(--color-yellow-medium) !important;
  transform: rotate(360deg);
}

/* DNA Helix Animation Container */
.binary-dna-container {
  position: relative;
  width: 100%;
  height: 140px;
  margin: var(--space-lg) 0;
  background: linear-gradient(135deg, rgba(6, 41, 67, 0.9), rgba(24, 64, 95, 0.9));
  border-radius: var(--border-radius-lg);
  border: 2px solid var(--color-blue-medium);
  overflow: hidden;
  box-shadow: inset 0 0 30px rgba(6, 41, 67, 0.5);
}

.binary-dna-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(117, 148, 172, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(74, 152, 119, 0.1) 0%, transparent 50%);
  animation: dnaGlow 4s ease-in-out infinite alternate;
}

@keyframes dnaGlow {
  0% { opacity: 0.3; }
  100% { opacity: 0.8; }
}

#dnaCanvas {
  display: block;
  width: 100% !important;
  height: 120px !important;
  background: transparent;
  filter: drop-shadow(0 0 10px rgba(222, 173, 108, 0.3));
}

/* Bottom Footer */
footer .border-top {
  border: none !important;
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  padding-bottom: var(--space-md);
}

/* Copyright Text */
footer .text-white.mb-0 {
  color: var(--color-blue-light) !important;
  font-size: 0.9rem;
}

footer .text-white.mb-0 strong {
  color: var(--color-yellow-light) !important;
  font-weight: 300;
}

/* Footer Links */
footer .text-white.text-decoration-none.ms-2 {
  color: var(--color-blue-light);
  font-size: 0.8rem;
  padding: var(--space-xxs) var(--space-xs);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-normal);
}

footer .text-white.text-decoration-none.ms-2:hover {
  color: var(--color-yellow-medium) !important;
  background-color: rgba(222, 173, 108, 0.1);
  text-decoration: none;
}

/* Responsive Design */
@media (max-width: 768px) {
  footer .container {
    padding: var(--spacing-xxl) var(--space-sm);
  }

  footer h5 {
    font-size: 1.1rem;
    margin-bottom: var(--space-sm);
  }

  footer .col-md-4 {
    margin-bottom: var(--space-lg);
  }

  .binary-dna-container {
    height: 100px;
    margin: var(--space-md) 0;
  }

  #dnaCanvas {
    height: 80px;
  }

  footer .list-inline-item a {
    width: 35px;
    height: 35px;
    margin: 0 var(--space-xxs);
  }

  footer .text-center.text-md-start,
  footer .text-center.text-md-end {
    text-align: center;
    margin-bottom: var(--space-sm);
  }
}

@media (max-width: 576px) {
  .binary-dna-container {
    height: 80px;
  }

  #dnaCanvas {
    height: 60px !important;
  }

  footer h5 {
    font-size: 1rem;
  }

  footer .list-inline-item {
    margin-bottom: 0.5rem;
  }
}

/* Animation Classes */
footer.fade-in {
  animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* DNA Animation States */
.dna-paused #dnaCanvas {
  filter: grayscale(0.5) brightness(0.8);
}

.dna-paused .binary-dna-container::before {
  animation-play-state: paused;
}

/* Loading State */
footer.loading {
  opacity: 0.7;
}

footer.loading * {
  pointer-events: none;
}

/* Focus States for Accessibility */
footer a:focus {
  outline: 2px solid var(--color-yellow-medium);
  outline-offset: 2px;
}

/* Print Styles */
@media print {
  footer {
    background: #000 !important;
    color: #000 !important;
  }

  .binary-dna-container {
    display: none;
  }
}