/* Variables */
:root {
  /* Colors */
  --bg-primary: #0f0f1a;
  --bg-secondary: #1a1a2e;
  --bg-element: #262639;
  --accent-primary: #8c5eff;
  --accent-secondary: #ff67d7;
  --text-primary: #ffffff;
  --text-secondary: #b8b8d0;
  --error-color: #ff4757;
  --success-color: #2ecc71;
  
  /* Spacing & Shapes */
  --border-radius-sm: 8px;
  --border-radius: 12px;
  --border-radius-lg: 16px;
  --card-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  
  /* Animations */
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --animation-speed: 0.3s;
}

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

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Hide scrollbar for all elements */
body, html {
  scrollbar-width: none; /* For Firefox */
  -ms-overflow-style: none; /* For Internet Explorer and Edge */
}

body::-webkit-scrollbar {
  display: none; /* For Chrome, Safari, and Opera */
}

a {
  color: inherit;
  text-decoration: none;
}

/* Header & Navigation */
.main-nav {
  padding: 1rem;
  background: var(--bg-secondary);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo a {
  background: linear-gradient(120deg, var(--accent-primary), var(--accent-secondary));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  position: relative;
  z-index: 1;
}

.logo::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 5px;
  bottom: -5px;
  left: 0;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
  border-radius: 3px;
  opacity: 0.5;
}

.nav-toggle {
  background: none;
  border: none;
  padding: 0.5rem;
  cursor: pointer;
  color: var(--text-primary);
  min-width: 44px;
  min-height: 44px;
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}

.menu-icon {
  width: 24px;
  height: 24px;
  transition: var(--transition);
}

/* Control Panel */
.control-panel {
  position: fixed;
  top: 0;
  right: -100%;
  width: 350px;
  height: 100vh;
  background: var(--bg-secondary);
  box-shadow: -4px 0 20px rgba(0, 0, 0, 0.3);
  transition: right 0.4s cubic-bezier(0.19, 1, 0.22, 1);
  display: flex;
  flex-direction: column;
  z-index: 2000;
  border-left: 1px solid rgba(255, 255, 255, 0.05);
}

.control-panel.active {
  right: 0;
}

.panel-header {
  padding: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.panel-header h2 {
  font-weight: 600;
  font-size: 1.25rem;
  background: linear-gradient(120deg, var(--accent-primary), var(--accent-secondary));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.panel-content {
  padding: 1.5rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.panel-footer {
  padding: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* Buttons */
.close-btn {
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  transition: var(--transition);
  min-width: 44px;
  min-height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.close-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}

.generate-btn {
  width: 100%;
  padding: 1rem;
  background: linear-gradient(120deg, var(--accent-primary), var(--accent-secondary));
  color: var(--text-primary);
  border: none;
  border-radius: var(--border-radius);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 50px;
}

.generate-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(140, 94, 255, 0.3);
}

.generate-btn:active {
  transform: translateY(0);
}

.documentation-btn {
  width: 90%;
  padding: 1rem;
  background: linear-gradient(120deg, var(--accent-primary), var(--bg-secondary));
  color: var(--text-primary);
  border: none;
  border-radius: var(--border-radius);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 50px;
  margin-bottom: 1rem;
  align-self: center;
}

.documentation-btn svg {
  width: 20px;
  height: 20px;
}

.documentation-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(140, 94, 255, 0.3);
}

.documentation-btn:active {
  transform: translateY(0);
  box-shadow: 0 4px 15px rgba(140, 94, 255, 0.2);
}

.btn-icon {
  width: 20px;
  height: 20px;
}

.retry-btn {
  padding: 0.75rem 1.5rem;
  background: linear-gradient(120deg, var(--accent-primary), var(--accent-secondary));
  color: var(--text-primary);
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.retry-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(140, 94, 255, 0.3);
}

/* Form Controls */
.setting-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.setting-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.toggle-switch {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.toggle-switch input[type="checkbox"] {
  opacity: 0;
  position: absolute;
  left: -9999px;
}

.slider {
  position: relative;
  width: 50px;
  height: 26px;
  background: var(--bg-element);
  border-radius: 26px;
  transition: var(--transition);
}

.slider::before {
  content: '';
  position: absolute;
  left: 3px;
  top: 3px;
  width: 20px;
  height: 20px;
  background: var(--text-primary);
  border-radius: 50%;
  transition: var(--transition);
}

input:checked + .slider {
  background: linear-gradient(120deg, var(--accent-primary), var(--accent-secondary));
}

input:checked + .slider::before {
  transform: translateX(24px);
}

.styled-select {
  width: 100%;
  padding: 0.875rem;
  background: var(--bg-element);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius);
  color: var(--text-primary);
  font-size: 1rem;
  transition: var(--transition);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  padding-right: 40px;
}

.styled-select:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(140, 94, 255, 0.2);
}

/* File Upload Styling */
.file-upload-container {
  width: 100%;
  margin-bottom: 0.5rem;
}

.file-upload-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.875rem;
  background: var(--bg-element);
  border: 1px dashed rgba(255, 255, 255, 0.2);
  border-radius: var(--border-radius);
  color: var(--text-primary);
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.file-upload-btn:hover {
  border-color: var(--accent-primary);
  background: rgba(140, 94, 255, 0.1);
}

.file-name-display {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0.75rem;
  background: var(--bg-element);
  border-radius: var(--border-radius-sm);
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
  overflow: hidden;
  position: relative;
}

#selectedFileName {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: calc(100% - 30px);
}

.clear-file-btn {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.clear-file-btn:hover {
  color: var(--error-color);
  background: rgba(255, 71, 87, 0.1);
}

.file-upload-container.drag-over {
  border: 2px dashed var(--accent-primary);
  border-radius: var(--border-radius);
  background: rgba(140, 94, 255, 0.1);
}

/* Import/Export Controls */
.button-group {
  display: flex;
  gap: 0.5rem;
}

.import-btn {
  width: 100%;
  padding: 0.875rem;
  background: var(--bg-element);
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.import-btn:enabled {
  background: linear-gradient(120deg, var(--accent-primary), var(--accent-secondary));
  border: none;
}

.import-btn:enabled:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(140, 94, 255, 0.3);
}

.import-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.clearLocalStorage-btn {
  width: 20%;
  padding: 0.875rem;
  background: var(--error-color);
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.clearLocalStorage-btn:enabled:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(255, 94, 94, 0.3);
}

.clearLocalStorage-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.import-status {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  padding: 0.5rem;
  border-radius: var(--border-radius-sm);
  text-align: center;
  display: none;
}

.import-status.success {
  display: block;
  background: rgba(46, 204, 113, 0.1);
  color: var(--success-color);
  border: 1px solid rgba(46, 204, 113, 0.3);
}

.import-status.error {
  display: block;
  background: rgba(255, 71, 87, 0.1);
  color: var(--error-color);
  border: 1px solid rgba(255, 71, 87, 0.3);
}

/* Gallery */
.gallery-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  padding: 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

.image-wrapper {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius);
  background: var(--bg-secondary);
  box-shadow: var(--card-shadow);
  transition: var(--transition);
  aspect-ratio: auto;
}

.image-wrapper:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
}

.image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
  transform-origin: center;
}

.image-wrapper:hover img {
  transform: scale(1.03);
}

.image-wrapper::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.3), transparent);
  pointer-events: none;
  opacity: 0;
  transition: var(--transition);
}

.image-wrapper:hover::after {
  opacity: 1;
}

.video-wrapper {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius);
  background: var(--bg-secondary);
  box-shadow: var(--card-shadow);
  transition: var(--transition);
  aspect-ratio: auto;
}

.video-wrapper:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
}

.video-wrapper video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--border-radius);
}

/* Social Links */
.social-links {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  padding: 1rem;
}

.social-link {
  color: var(--text-secondary);
  transition: var(--transition);
  opacity: 0.8;
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.social-link:hover {
  opacity: 1;
  transform: translateY(-2px);
  color: var(--text-primary);
}

.copyright {
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-secondary);
  padding: 1rem;
}

/* Scroll Controls */
.scroll-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--bg-element);
  border: none;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  box-shadow: var(--card-shadow);
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top:hover {
  transform: translateY(-3px);
  background: linear-gradient(120deg, var(--accent-primary), var(--accent-secondary));
}

.scroll-top svg {
  width: 24px;
  height: 24px;
}

.randomize-btn {
  position: fixed;
  bottom: 6rem;
  right: 2rem;
  background: var(--bg-element);
  border: none;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0.8;
  transition: var(--transition);
  box-shadow: var(--card-shadow);
}

.randomize-btn:hover {
  transform: translateY(-3px);
  background: linear-gradient(120deg, var(--accent-primary), var(--accent-secondary));
  opacity: 1;
}

.randomize-btn svg {
  width: 24px;
  height: 24px;
}

/* Modal */
.image-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  pointer-events: auto;
}

.image-modal.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.modal-content {
  position: relative;
  max-width: 90%;
  max-height: 90%;
  border-radius: var(--border-radius);
  overflow: hidden;
}

.modal-image {
  width: auto;
  height: 100%;
  display: block;
  object-fit: contain;
}

.modal-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 1rem;
}

.modal-action-btn {
  padding: 0.75rem 1.5rem;
  background: var(--bg-element);
  color: var(--text-primary);
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.modal-action-btn:hover {
  background: var(--accent-primary);
}

/* Tooltip */
.tooltip {
  position: relative;
}

.tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 125%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-element);
  color: var(--text-primary);
  padding: 0.5rem;
  border-radius: var(--border-radius-sm);
  font-size: 0.75rem;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  pointer-events: none;
  box-shadow: var(--card-shadow);
}

.tooltip:hover::after {
  opacity: 1;
  visibility: visible;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 2rem;
  left: 2rem;
  z-index: 5000;
}

.toast {
  background: var(--bg-element);
  padding: 1rem;
  border-radius: var(--border-radius);
  margin-top: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  box-shadow: var(--card-shadow);
  animation: slideIn 0.3s ease-out forwards;
}

.toast-success {
  border-left: 4px solid var(--success-color);
}

.toast-error {
  border-left: 4px solid var(--error-color);
}

.toast-icon {
  width: 24px;
  height: 24px;
}

.toast-message {
  flex-grow: 1;
}

.toast-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
}

/* Loading & Error States */
.loading-skeleton {
  background: var(--bg-element);
  aspect-ratio: 3/4;
  border-radius: var(--border-radius);
  animation: pulse 1.5s infinite;
  position: relative;
  overflow: hidden;
}

.loading-skeleton::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  transform: translateX(-100%);
  background: linear-gradient(90deg, 
    transparent, 
    rgba(255, 255, 255, 0.08), 
    transparent);
  animation: shimmer 2s infinite;
}

.error-container {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  text-align: center;
  padding: 3rem;
  background: var(--bg-secondary);
  border-radius: var(--border-radius);
  margin: 2rem auto;
  animation: fadeIn 0.3s ease-out;
  border: 1px solid rgba(255, 255, 255, 0.08);
  max-width: 500px;
}

.error-icon {
  font-size: 2.5rem;
  color: var(--error-color);
  filter: drop-shadow(0 0 8px rgba(140, 94, 255, 0.3));
}

.error-icon img {
  width: 120px;
  height: 120px;
}

.error-text {
  color: var(--text-primary);
  font-weight: 500;
  font-size: 1.125rem;
}

.error-text small {
  display: block;
  margin-top: 0.5rem;
  color: var(--text-secondary);
}

/* Animations */
@keyframes pulse {
  0%, 100% { opacity: 0.8 }
  50% { opacity: 0.5 }
}

@keyframes shimmer {
  100% { transform: translateX(100%); }
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

/* Responsive */
@media (max-width: 768px) {
  .gallery-container {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    padding: 1rem;
    gap: 1rem;
  }

  .control-panel {
    width: 100%;
    border-radius: 0;
  }

  .error-container {
    margin: 1rem;
    padding: 2rem;
  }
  
  .toast-container {
    left: 1rem;
    right: 1rem;
  }
  
  .modal-image {
    max-width: 100%;
  }
  
  .randomize-btn {
    right: 1rem;
    bottom: 5rem;
  }

  .scroll-top {
    right: 1rem;
    bottom: 1rem;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .gallery-container {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}