/* Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: #f9fafb;
  color: #1f2937;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: #dc2626;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #b91c1c;
}

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

/* Container */
.container-custom {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Buttons */
.btn-primary {
  background-color: #dc2626;
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: 9999px;
  font-weight: 600;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary:hover {
  background-color: #b91c1c;
  transform: translateY(-2px);
  box-shadow: 0 10px 15px -3px rgba(220, 38, 38, 0.3);
}

.btn-outline {
  border: 2px solid #dc2626;
  color: #dc2626;
  padding: 0.75rem 1.5rem;
  border-radius: 9999px;
  font-weight: 600;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
}

.btn-outline:hover {
  background-color: #dc2626;
  color: white;
  transform: translateY(-2px);
}

/* Cards */
.product-card {
  background: white;
  border-radius: 1rem;
  overflow: hidden;
  transition: all 0.3s ease;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 25px -12px rgba(0, 0, 0, 0.2);
}

.brand-card {
  background: white;
  border-radius: 1rem;
  padding: 1.5rem;
  text-align: center;
  transition: all 0.3s ease;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.brand-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.15);
}

/* Category Chips */
.category-chip {
  padding: 0.5rem 1.25rem;
  border-radius: 9999px;
  background: white;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.category-chip.active {
  background-color: #dc2626;
  color: white;
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3);
}

.category-chip:hover:not(.active) {
  background-color: #fef2f2;
  color: #dc2626;
}

/* Form Styles */
input, textarea, select {
  border: 1px solid #e5e7eb;
  border-radius: 0.5rem;
  padding: 0.75rem 1rem;
  width: 100%;
  transition: all 0.2s ease;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: #dc2626;
  ring: 2px solid rgba(220, 38, 38, 0.2);
}

/* Loading Spinner */
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid #f3f3f3;
  border-top: 3px solid #dc2626;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Toast Notification */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  background: #1f2937;
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  z-index: 1000;
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

/* PDF Viewer Modal */
.pdf-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.2s ease;
}

.pdf-modal-content {
  background: white;
  border-radius: 1rem;
  max-width: 90vw;
  max-height: 90vh;
  overflow: auto;
  position: relative;
}

.pdf-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: white;
  border-radius: 50%;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.25rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  transition: all 0.2s;
}

.pdf-close:hover {
  background: #dc2626;
  color: white;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}