/* Custom CSS for STUDISWAP */

/* General Styles */
body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #2d3748;
  overflow-x: hidden;
  background: linear-gradient(135deg, #e0f2fe 0%, #f0f9ff 25%, #fef3c7 50%, #fed7aa 75%, #fce7f3 100%);
  background-size: 400% 400%;
  background-attachment: fixed;
  animation: gradientFlow 20s ease infinite;
  min-height: 100vh;
}

nav{
  z-index: 100000;
}

@keyframes gradientFlow {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Smooth Animations */
* {
  transition: all 0.3s ease;
}

/* Navigation */
.navbar-brand {
  font-size: 1.8rem;
  animation: slideInLeft 0.5s ease-out;
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.navbar {
  animation: slideDown 0.5s ease-out;
  background: rgba(255, 255, 255, 0.95) !important;
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08) !important;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-100%);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(135deg, #3b82f6 0%, #a855f7 100%);
  transform: translateX(-50%);
  transition: width 0.3s ease;
}

.nav-link:hover::after {
  width: 80%;
}

/* Cards */
.card {
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  border-radius: 20px;
  animation: fadeInUp 0.6s ease-out;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.25) 0%, rgba(255, 255, 255, 0.1) 100%);
  backdrop-filter: blur(20px);
  border: 2px solid rgba(255, 255, 255, 0.4);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1),
              inset 0 1px 0 rgba(255, 255, 255, 0.6);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.6s ease;
}

.card:hover::before {
  left: 100%;
}

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

.card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 20px 60px rgba(59, 130, 246, 0.3),
              inset 0 1px 0 rgba(255, 255, 255, 0.8);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.35) 0%, rgba(255, 255, 255, 0.15) 100%);
  border-color: rgba(255, 255, 255, 0.6);
}

/* Product Cards */
.product-card {
  border: none;
  border-radius: 20px;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.3) 0%, rgba(255, 255, 255, 0.15) 100%);
  backdrop-filter: blur(20px);
  border: 2px solid rgba(255, 255, 255, 0.5);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1),
              inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(168, 85, 247, 0.15));
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 1;
}

.product-card:hover::before {
  opacity: 1;
}

.product-card:hover {
  transform: translateY(-15px) scale(1.03);
  box-shadow: 0 25px 70px rgba(59, 130, 246, 0.4),
              inset 0 1px 0 rgba(255, 255, 255, 0.8);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.4) 0%, rgba(255, 255, 255, 0.2) 100%);
  border-color: rgba(255, 255, 255, 0.7);
}

.product-card .card-img-top {
  height: 200px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.product-card:hover .card-img-top {
  transform: scale(1.1) rotate(2deg);
}

/* Category Cards */
.category-card {
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  cursor: pointer;
  border-radius: 20px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.25) 0%, rgba(255, 255, 255, 0.1) 100%);
  backdrop-filter: blur(20px);
  border: 2px solid rgba(255, 255, 255, 0.4);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1),
              inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.category-card::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(168, 85, 247, 0.15));
  transform: translate(-50%, -50%);
  transition: width 0.5s, height 0.5s;
}

.category-card:hover::before {
  width: 300%;
  height: 300%;
}

.category-card:hover {
  transform: translateY(-12px) rotate(-2deg);
  box-shadow: 0 20px 60px rgba(59, 130, 246, 0.4),
              inset 0 1px 0 rgba(255, 255, 255, 0.8);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.35) 0%, rgba(255, 255, 255, 0.15) 100%);
  border-color: rgba(255, 255, 255, 0.6);
}

.category-card i {
  transition: transform 0.4s ease;
}

.category-card:hover i {
  transform: scale(1.3) rotate(360deg);
}

/* Buttons */
.btn {
  border-radius: 15px;
  font-weight: 600;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
  z-index: -1;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn-primary {
  background: linear-gradient(135deg, #3b82f6 0%, #a855f7 100%);
  border: none;
  box-shadow: 0 8px 20px rgba(59, 130, 246, 0.4),
              inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #2563eb 0%, #9333ea 100%);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(59, 130, 246, 0.6),
              inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

.btn-outline-primary {
  border: 2px solid #3b82f6;
  color: #3b82f6;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0.05) 100%);
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1),
              inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.btn-outline-primary:hover {
  background: linear-gradient(135deg, #3b82f6 0%, #a855f7 100%);
  border-color: transparent;
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(59, 130, 246, 0.6),
              inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

/* Forms */
.form-control {
  border-radius: 10px;
  border: 2px solid #e9ecef;
  transition: all 0.3s ease;
}

.form-control:focus {
  border-color: #3b82f6;
  box-shadow: 0 0 0 0.25rem rgba(59, 130, 246, 0.25);
  transform: translateY(-2px);
}

/* Hero Section */
.hero-section {
  background: linear-gradient(135deg, #3b82f6 0%, #a855f7 50%, #ec4899 100%);
  min-height: 70vh;
  animation: gradientShift 10s ease infinite;
  background-size: 200% 200%;
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Image Placeholder */
.image-placeholder {
  background: linear-gradient(45deg, #f8f9fa, #e9ecef);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% { background-position: -1000px 0; }
  100% { background-position: 1000px 0; }
}

/* Price Display */
.price-display {
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, #28a745, #20c997);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: priceGlow 2s ease-in-out infinite;
}

@keyframes priceGlow {
  0%, 100% { filter: brightness(1); }
  50% { filter: brightness(1.2); }
}

/* Badge Styles */
.badge-condition {
  background: linear-gradient(135deg, #28a745, #20c997);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  animation: bounceIn 0.5s ease-out;
  box-shadow: 0 4px 15px rgba(40, 167, 69, 0.4),
              inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

@keyframes bounceIn {
  0% {
    opacity: 0;
    transform: scale(0.3);
  }
  50% {
    opacity: 1;
    transform: scale(1.05);
  }
  70% { transform: scale(0.9); }
  100% { transform: scale(1); }
}

.badge-status {
  background: linear-gradient(135deg, #007bff, #6610f2);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  animation: bounceIn 0.5s ease-out;
  box-shadow: 0 4px 15px rgba(0, 123, 255, 0.4),
              inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

/* Product Grid */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2rem;
}

/* Search Form */
.search-form {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.25) 0%, rgba(255, 255, 255, 0.1) 100%);
  backdrop-filter: blur(20px);
  border-radius: 20px;
  padding: 2rem;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1),
              inset 0 1px 0 rgba(255, 255, 255, 0.6);
  animation: slideInRight 0.5s ease-out;
  border: 2px solid rgba(255, 255, 255, 0.4);
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Footer */
footer {
  background: linear-gradient(135deg, #0f172a, #1e293b, #1e3a8a);
  animation: slideUp 0.5s ease-out;
  backdrop-filter: blur(10px);
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

footer a {
  transition: all 0.3s ease;
}

footer a:hover {
  transform: translateX(5px);
  color: #fbbf24 !important;
}

/* Social Media Icons */
.social-links {
  margin-top: 1rem;
}

.social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 45px;
  height: 45px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(96, 165, 250, 0.3), rgba(251, 191, 36, 0.3));
  border: 2px solid rgba(96, 165, 250, 0.5);
  color: #60a5fa;
  font-size: 1.3rem;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  text-decoration: none;
  box-shadow: 0 4px 15px rgba(96, 165, 250, 0.2);
}

.social-icon:hover {
  background: linear-gradient(135deg, #60a5fa, #fbbf24);
  border-color: #fbbf24;
  color: #ffffff;
  transform: translateY(-5px) rotate(360deg) scale(1.1);
  box-shadow: 0 8px 25px rgba(251, 191, 36, 0.5);
}

.social-icon i {
  transition: transform 0.3s ease;
}

.social-icon:hover i {
  transform: scale(1.2);
}

/* Alert Styles */
.alert {
  border: none;
  border-radius: 12px;
  font-weight: 500;
  animation: slideInDown 0.5s ease-out;
}

@keyframes slideInDown {
  from {
    opacity: 0;
    transform: translateY(-50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.alert-success {
  background: linear-gradient(135deg, #d4edda, #c3e6cb);
  color: #155724;
  box-shadow: 0 4px 15px rgba(21, 87, 36, 0.2);
}

.alert-danger {
  background: linear-gradient(135deg, #f8d7da, #f5c6cb);
  color: #721c24;
  box-shadow: 0 4px 15px rgba(114, 28, 36, 0.2);
}

.alert-info {
  background: linear-gradient(135deg, #d1ecf1, #bee5eb);
  color: #0c5460;
  box-shadow: 0 4px 15px rgba(12, 84, 96, 0.2);
}

/* Pagination */
.pagination .page-link {
  border-radius: 12px;
  margin: 0 3px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  color: #3b82f6;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0.1) 100%);
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1),
              inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.pagination .page-link:hover {
  background: linear-gradient(135deg, #3b82f6 0%, #a855f7 100%);
  border-color: transparent;
  color: white;
  transform: translateY(-3px) scale(1.1);
  box-shadow: 0 12px 25px rgba(59, 130, 246, 0.5),
              inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

.pagination .page-item.active .page-link {
  background: linear-gradient(135deg, #3b82f6 0%, #a855f7 100%);
  border-color: transparent;
  box-shadow: 0 8px 20px rgba(59, 130, 246, 0.5),
              inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

/* Loading Animation */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #fff;
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Scroll Animations */
.fade-in-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease-out;
}

.fade-in-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Hover Effects for Icons */
i {
  transition: all 0.3s ease;
}

i:hover {
  transform: scale(1.2) rotate(10deg);
}

/* Utilities */
.text-gradient {
  background: linear-gradient(135deg, #3b82f6 0%, #a855f7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Responsive Design */
@media (max-width: 768px) {
  .navbar-nav {
    text-align: center;
  }

  .hero-section h1 {
    font-size: 2.5rem;
  }

  .product-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
  }
  
  .card:hover {
    transform: translateY(-5px) scale(1.01);
  }
}

/* Stagger Animation for Cards */
.card:nth-child(1) { animation-delay: 0.1s; }
.card:nth-child(2) { animation-delay: 0.2s; }
.card:nth-child(3) { animation-delay: 0.3s; }
.card:nth-child(4) { animation-delay: 0.4s; }
.card:nth-child(5) { animation-delay: 0.5s; }
.card:nth-child(6) { animation-delay: 0.6s; }
.card:nth-child(7) { animation-delay: 0.7s; }
.card:nth-child(8) { animation-delay: 0.8s; }

/* Smooth Scrolling */
html {
  scroll-behavior: smooth;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 12px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, #3b82f6 0%, #a855f7 100%);
  border-radius: 6px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, #2563eb 0%, #9333ea 100%);
}