/* Akagami Research - 2 Color Design (White & #e75556) */

:root {
  --primary: #e75556;
  --white: #ffffff;
  --beige: #f4eee0;
  --gray-light: #f5f5f5;
  --gray: #999999;
  --dark: #333333;
}

/* Global Font Weight Adjustments for Desktop */
@media (min-width: 1024px) {
  body {
    font-weight: 400;
  }
  
  h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
  }
  
  .font-bold {
    font-weight: 600 !important;
  }
  
  .font-semibold {
    font-weight: 500 !important;
  }
  
  .font-medium {
    font-weight: 400 !important;
  }
  
  button {
    font-weight: 400;
  }
}

/* Background colors - Important for overriding Tailwind */
.bg-beige {
  background-color: #f4eee0 !important;
}

.bg-white {
  background-color: #ffffff !important;
}

@media (min-width: 1024px) {
  .lg\:bg-white {
    background-color: #ffffff !important;
  }
}

/* Category Buttons */
.category-btn {
  background: white;
  color: var(--dark);
  border: 2px solid #e0e0e0;
  font-weight: 400;
  transition: all 0.3s ease;
}

.category-btn:hover {
  background: var(--gray-light);
  border-color: var(--primary);
  transform: translateX(4px);
}

.category-btn.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(231, 85, 86, 0.3);
  font-weight: 500;
}

/* Tag Buttons */
.tag-btn {
  background-color: white;
  color: var(--dark);
  border: 2px solid #e0e0e0;
  font-weight: 400;
  transition: all 0.3s ease;
}

.tag-btn:hover {
  background-color: var(--gray-light);
  border-color: var(--primary);
  transform: translateY(-2px);
}

.tag-btn.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(231, 85, 86, 0.3);
  font-weight: 500;
}

/* Sort Buttons */
.sort-btn {
  background-color: white;
  color: var(--dark);
  border: 2px solid #e0e0e0;
  font-weight: 400;
  transition: all 0.3s ease;
}

.sort-btn:hover {
  background-color: var(--gray-light);
  border-color: var(--primary);
  transform: translateY(-2px);
}

.sort-btn.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(231, 85, 86, 0.3);
  font-weight: 500;
}

/* Favorite Button */
.favorite-btn {
  transition: all 0.3s ease;
  backdrop-filter: blur(4px);
}

.favorite-btn:hover {
  transform: scale(1.1);
}

/* Favorite Filter Button */
.favorite-filter-btn {
  background-color: white;
  color: var(--dark);
  border: 2px solid #e0e0e0;
  font-weight: 400;
  transition: all 0.3s ease;
}

.favorite-filter-btn:hover {
  background-color: var(--gray-light);
  border-color: var(--primary);
  transform: translateY(-2px);
}

.favorite-filter-btn.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(231, 85, 86, 0.3);
  font-weight: 500;
}

/* PDF Card Styles */
.pdf-card {
  background: white;
  border: 2px solid #f0f0f0;
  transition: all 0.3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
}

.pdf-card:hover {
  border-color: var(--primary);
  box-shadow: 0 8px 24px rgba(231, 85, 86, 0.15);
  transform: translateY(-4px);
  text-decoration: none;
}

.pdf-card:active {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(231, 85, 86, 0.2);
}

.pdf-card > div {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.pdf-card a {
  margin-top: auto;
}

/* Badge Styles */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 400;
}

.badge-category {
  background: var(--primary);
  color: white;
  font-weight: 500;
}

.badge-tag {
  background-color: white;
  color: var(--dark);
  border: 1px solid #e0e0e0;
}

/* Text utilities */
.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Admin Modal */
.modal-overlay {
  background-color: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
}

.admin-btn {
  transition: all 0.3s ease;
  font-weight: 400;
}

.admin-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(231, 85, 86, 0.2);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: #f5f5f5;
}

::-webkit-scrollbar-thumb {
  background: #d1d5db;
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: #9ca3af;
}

/* Typography */
h1, h2, h3 {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  letter-spacing: 0.3px;
  font-weight: 600;
}

@media (min-width: 1024px) {
  h1 {
    font-weight: 600;
  }
  
  h2 {
    font-weight: 600;
  }
  
  h3 {
    font-weight: 500;
  }
}

/* Focus States */
button:focus,
input:focus,
textarea:focus,
select:focus {
  outline: none;
  ring: 2px;
  ring-color: var(--primary);
}

/* Smooth Transitions */
* {
  transition-property: background-color, border-color, color, fill, stroke, opacity, box-shadow, transform;
  transition-duration: 200ms;
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

/* Mobile Sidebar */
#sidebar {
  transition: transform 0.3s ease-in-out;
}

#sidebar.show-mobile {
  transform: translateX(0);
}

#sidebar-overlay {
  transition: opacity 0.3s ease-in-out;
}

#sidebar-overlay.show {
  display: block !important;
  opacity: 1;
}

/* Responsive Design */
@media (max-width: 768px) {
  .category-btn, .tag-btn {
    font-size: 0.875rem;
    padding: 0.5rem 0.75rem;
  }
  
  h1 {
    font-size: 1.5rem;
  }
  
  .pdf-card h3 {
    font-size: 1rem;
  }
  
  .pdf-card .badge {
    font-size: 0.7rem;
  }
}

/* Loading Animation */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.animate-pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Multi-Select Mode Styles */
#multi-select-toolbar {
  animation: slideUp 0.3s ease-out;
}

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

.animate-slide-up {
  animation: slideUp 0.3s ease-out;
}

/* Selected card highlight */
.pdf-card.bg-blue-50 {
  border-color: #3b82f6 !important;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Celebration Modal Styles */
.celebration-modal,
.first-download-modal {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 1;
  transition: opacity 0.3s ease;
  backdrop-filter: blur(8px);
}

.celebration-content,
.first-download-content {
  background: white;
  border-radius: 24px;
  padding: 3rem 2rem;
  max-width: 500px;
  width: 90%;
  text-align: center;
  position: relative;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  animation: modalBounce 0.5s ease-out;
}

@keyframes modalBounce {
  0% {
    transform: scale(0.3) translateY(-100px);
    opacity: 0;
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

.celebration-emoji,
.first-download-emoji {
  font-size: 5rem;
  margin-bottom: 1rem;
  animation: emojiRotate 1s ease-in-out infinite;
}

@keyframes emojiRotate {
  0%, 100% {
    transform: rotate(-10deg) scale(1);
  }
  50% {
    transform: rotate(10deg) scale(1.1);
  }
}

.celebration-title,
.first-download-title {
  font-size: 2rem;
  font-weight: bold;
  color: var(--primary);
  margin-bottom: 1rem;
}

.celebration-message,
.first-download-message {
  font-size: 1.1rem;
  color: var(--dark);
  line-height: 1.8;
  margin-bottom: 2rem;
}

.celebration-button,
.first-download-button {
  background: linear-gradient(135deg, var(--primary) 0%, #ff6b6b 100%);
  color: white;
  font-size: 1.2rem;
  font-weight: bold;
  padding: 1rem 2.5rem;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 10px 25px rgba(231, 85, 86, 0.4);
}

.celebration-button:hover,
.first-download-button:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 15px 35px rgba(231, 85, 86, 0.5);
}

.celebration-button:active,
.first-download-button:active {
  transform: translateY(-1px) scale(1.02);
}

/* Confetti Animation - Much More Spectacular! */
.confetti {
  position: absolute;
  font-size: 2rem;
  animation: confettiFall linear forwards;
  pointer-events: none;
  z-index: 1;
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.8);
}

@keyframes confettiFall {
  0% {
    top: -10%;
    transform: translateX(0) rotateZ(0deg);
    opacity: 1;
  }
  100% {
    top: 110%;
    transform: translateX(calc(-50px + 100px * var(--random))) rotateZ(calc(360deg * 3));
    opacity: 0;
  }
}

/* Share Button (Small) */
.share-btn-small {
  background: transparent;
  color: #9ca3af;
  border: none;
  padding: 0.25rem 0.5rem;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.share-btn-small:hover {
  color: var(--primary);
  transform: scale(1.1);
}

/* Favorite Button (Small) */
.favorite-btn-small {
  background: transparent;
  color: #d1d5db;
  border: none;
  padding: 0.25rem 0.5rem;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.favorite-btn-small:hover {
  color: var(--primary);
  transform: scale(1.2);
}

.favorite-btn-small.active {
  color: var(--primary);
  animation: heartBeat 0.3s ease;
}

@keyframes heartBeat {
  0%, 100% {
    transform: scale(1);
  }
  25% {
    transform: scale(1.3);
  }
  50% {
    transform: scale(1.1);
  }
  75% {
    transform: scale(1.25);
  }
}

/* Skeleton Screen */
.skeleton-card {
  background: white;
  border-radius: 12px;
  padding: 1rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 4px;
}

@keyframes shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

.skeleton-title {
  height: 1.5rem;
  width: 80%;
  margin-bottom: 0.75rem;
}

.skeleton-tags {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.skeleton-tag {
  height: 1.5rem;
  width: 4rem;
}

.skeleton-date {
  height: 1rem;
  width: 50%;
}

/* Welcome Modal Styles */
.welcome-modal {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 1;
  transition: opacity 0.3s ease;
  backdrop-filter: blur(8px);
}

.welcome-content {
  background: white;
  border-radius: 24px;
  padding: 3rem 2rem;
  max-width: 500px;
  width: 90%;
  text-align: center;
  position: relative;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  animation: modalBounce 0.5s ease-out;
}

.welcome-heart {
  font-size: 5rem;
  margin-bottom: 1rem;
  animation: heartPulse 1.5s ease-in-out infinite;
}

@keyframes heartPulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.2);
  }
}

.welcome-title {
  font-size: 2rem;
  font-weight: bold;
  color: var(--primary);
  margin-bottom: 1rem;
}

.welcome-message {
  font-size: 1.1rem;
  color: var(--dark);
  line-height: 1.8;
  margin-bottom: 2rem;
}

.welcome-button {
  background: linear-gradient(135deg, var(--primary) 0%, #ff6b6b 100%);
  color: white;
  font-size: 1.2rem;
  font-weight: bold;
  padding: 1rem 2.5rem;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 10px 25px rgba(231, 85, 86, 0.4);
}

.welcome-button:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 15px 35px rgba(231, 85, 86, 0.5);
}

/* Floating Hearts Animation */
.floating-hearts {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  pointer-events: none;
  overflow: hidden;
  border-radius: 24px;
}

.floating-heart {
  position: absolute;
  font-size: 2rem;
  animation: floatHeart 4s ease-in-out infinite;
  opacity: 0;
}

.floating-heart:nth-child(1) {
  left: 10%;
  animation-delay: 0s;
}

.floating-heart:nth-child(2) {
  left: 30%;
  animation-delay: 0.8s;
}

.floating-heart:nth-child(3) {
  left: 50%;
  animation-delay: 1.6s;
}

.floating-heart:nth-child(4) {
  left: 70%;
  animation-delay: 2.4s;
}

.floating-heart:nth-child(5) {
  left: 90%;
  animation-delay: 3.2s;
}

@keyframes floatHeart {
  0% {
    bottom: -10%;
    opacity: 0;
    transform: translateX(0) rotate(0deg);
  }
  50% {
    opacity: 1;
  }
  100% {
    bottom: 110%;
    opacity: 0;
    transform: translateX(calc(-30px + 60px * var(--random, 0.5))) rotate(360deg);
  }
}

/* Floating SNS Logos Animation */
.floating-sns-logos {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  pointer-events: none;
  overflow: hidden;
  border-radius: 24px;
}

.floating-sns-logo {
  position: absolute;
  font-size: 2.5rem;
  animation: fallSNSLogo 4s ease-in infinite;
  opacity: 0;
  color: var(--primary);
  text-shadow: 0 0 10px rgba(231, 85, 86, 0.5);
}

.floating-sns-logo:nth-child(1) {
  left: 5%;
  animation-delay: 0s;
}

.floating-sns-logo:nth-child(2) {
  left: 15%;
  animation-delay: 0.3s;
}

.floating-sns-logo:nth-child(3) {
  left: 30%;
  animation-delay: 0.6s;
}

.floating-sns-logo:nth-child(4) {
  left: 45%;
  animation-delay: 0.9s;
}

.floating-sns-logo:nth-child(5) {
  left: 60%;
  animation-delay: 1.2s;
}

.floating-sns-logo:nth-child(6) {
  left: 70%;
  animation-delay: 1.5s;
}

.floating-sns-logo:nth-child(7) {
  left: 85%;
  animation-delay: 1.8s;
}

.floating-sns-logo:nth-child(8) {
  left: 95%;
  animation-delay: 2.1s;
}

@keyframes fallSNSLogo {
  0% {
    top: -10%;
    opacity: 0;
    transform: translateY(0) rotate(0deg) scale(0.5);
  }
  10% {
    opacity: 1;
  }
  100% {
    top: 110%;
    opacity: 0;
    transform: translateY(0) rotate(720deg) scale(1.5);
  }
}

/* View Mode Toggle Buttons */
.view-mode-btn {
  background: white;
  color: var(--gray);
  border: 2px solid #e0e0e0;
  transition: all 0.3s ease;
}

.view-mode-btn:hover {
  background: var(--gray-light);
  border-color: var(--primary);
  color: var(--primary);
}

.view-mode-btn.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  box-shadow: 0 2px 8px rgba(231, 85, 86, 0.3);
}

/* List View Card Styles */
.pdf-card-list {
  display: block;
}

.pdf-card-list:hover {
  transform: translateX(4px);
}

/* Dark Mode Styles */
body.dark-mode {
  background-color: #1a1a1a;
  color: #e0e0e0;
}

body.dark-mode header {
  background-color: #2d2d2d;
}

body.dark-mode footer {
  background-color: #2d2d2d;
  border-color: #404040;
  color: #999;
}

body.dark-mode .bg-white {
  background-color: #2d2d2d !important;
}

body.dark-mode .bg-gray-50 {
  background-color: #2d2d2d !important;
}

body.dark-mode .bg-gray-100 {
  background-color: #3a3a3a !important;
}

body.dark-mode .text-gray-500 {
  color: #999 !important;
}

body.dark-mode .text-gray-600 {
  color: #aaa !important;
}

body.dark-mode .text-gray-700 {
  color: #ccc !important;
}

body.dark-mode .text-gray-800 {
  color: #e0e0e0 !important;
}

body.dark-mode .text-darker {
  color: #e0e0e0 !important;
}

body.dark-mode .border-gray-200 {
  border-color: #404040 !important;
}

body.dark-mode .border-gray-300 {
  border-color: #555 !important;
}

body.dark-mode .pdf-card {
  background-color: #2d2d2d;
  border-color: #404040;
}

body.dark-mode .pdf-card:hover {
  background-color: #353535;
  border-color: var(--primary);
}

body.dark-mode .pdf-card-list {
  background-color: #2d2d2d;
  border-color: #404040;
}

body.dark-mode .pdf-card-list:hover {
  background-color: #353535;
}

body.dark-mode .category-btn {
  background-color: #2d2d2d;
  border-color: #404040;
  color: #e0e0e0;
}

body.dark-mode .category-btn:hover {
  background-color: #353535;
}

body.dark-mode .category-btn.active {
  background-color: var(--primary);
  color: white;
}

body.dark-mode .tag-btn {
  background-color: #2d2d2d;
  border-color: #404040;
  color: #e0e0e0;
}

body.dark-mode .tag-btn:hover {
  background-color: #353535;
}

body.dark-mode .tag-btn.active {
  background-color: var(--primary);
  color: white;
}

body.dark-mode .sort-btn {
  background-color: #2d2d2d;
  border-color: #404040;
  color: #e0e0e0;
}

body.dark-mode .sort-btn:hover {
  background-color: #353535;
}

body.dark-mode .sort-btn.active {
  background-color: var(--primary);
  color: white;
}

body.dark-mode .favorite-filter-btn {
  background-color: #2d2d2d;
  border-color: #404040;
  color: #e0e0e0;
}

body.dark-mode .favorite-filter-btn:hover {
  background-color: #353535;
}

body.dark-mode .favorite-filter-btn.active {
  background-color: var(--primary);
  color: white;
}

body.dark-mode .view-mode-btn {
  background-color: #2d2d2d;
  border-color: #404040;
  color: #999;
}

body.dark-mode .view-mode-btn:hover {
  background-color: #353535;
  color: var(--primary);
}

body.dark-mode .view-mode-btn.active {
  background-color: var(--primary);
  color: white;
}

body.dark-mode #sidebar > div {
  background-color: #2d2d2d;
}

body.dark-mode input {
  background-color: #3a3a3a;
  border-color: #555;
  color: #e0e0e0;
}

body.dark-mode input::placeholder {
  color: #999;
}

body.dark-mode .badge {
  background-color: #3a3a3a;
  color: #e0e0e0;
}

body.dark-mode .bg-beige,
body.dark-mode .bg-\[#f4eee0\] {
  background-color: #3a3a3a !important;
}