/* ==========================================
   WPLACE COLOR CONVERTER - MAIN STYLES
   Dark Theme Only
   ========================================== */

/* Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
}

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

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--text-secondary);
  border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-primary);
}

/* Container */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* Header */
.site-header {
  background: var(--block-bg);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) 0;
}

.site-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

/* Main Container */
.main-container {
  padding: var(--spacing-xl) var(--spacing-lg);
}

/* Panel */
.panel {
  margin-bottom: var(--spacing-xl);
}

.panel-upload .card {
  background: var(--block-bg);
  border-radius: var(--radius-xl);
  padding: var(--spacing-lg);
}

/* Main Grid Layout */
.panel-main {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
}

@media (max-width: 1024px) {
  .panel-main {
    grid-template-columns: 1fr;
  }
}

/* Card */
.card {
  background: var(--block-bg);
  border-radius: var(--radius-xl);
  padding: var(--spacing-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.settings-card {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

/* Upload Area */
.upload-wrapper {
  position: relative;
}

.upload-box {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl) var(--spacing-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
}

.upload-box:hover {
  border-color: var(--accent-primary);
  background: var(--bg-hover);
}

.upload-icon {
  font-size: 3rem;
}

.upload-text {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.upload-text strong {
  color: var(--text-primary);
  font-size: 1.125rem;
}

.upload-text span {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

#upload {
  display: none;
}

/* Scroll Bar (Range Slider) */
.scroll-bar {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin: var(--spacing-md) 0;
}

.scroll-bar label {
  font-weight: 500;
  color: var(--text-primary);
  min-width: 60px;
}

.scroll-bar input[type="range"] {
  flex: 1;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--bg-tertiary);
  outline: none;
  -webkit-appearance: none;
}

.scroll-bar input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent-primary);
  cursor: pointer;
  border: 2px solid var(--block-bg);
}

.scroll-bar input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent-primary);
  cursor: pointer;
  border: 2px solid var(--block-bg);
}

.scroll-bar span {
  color: var(--text-secondary);
  font-size: 0.875rem;
  min-width: 50px;
  text-align: right;
}

/* Dimensions */
.dimensions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-sm);
}

.dimension-input {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

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

.dimension-input input {
    height: 40px;
    font-size: 15px;
    padding: 0px 14px;
    background: var(--bg-primary);
    width: 100%;
    font-size: 15px;
    color: var(--text-primary);
    background: var(--bg-primary);
    border-width: initial;
    border-style: none;
    border-color: initial;
    border-image: initial;
    border-radius: 12px;
    outline: none;
}

.dimension-input input:focus {
  border-color: var(--accent-primary);
}

.dimension-input input:read-only {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Buttons */
.btn {
  width: 100%;
  height: 48px;
  padding: 0 24px;
  font-size: 16px;
  border-radius: 24px;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-weight: 500;
  transition: opacity .2s ease, background .2s ease;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  gap: 4px !important;
}

}

.btn:hover {
  opacity: 90%;
}

.btn-toggle {
  width: 100%;
  height: 48px;
  padding: 0 24px;
  font-size: 16px;
  border-radius: 24px;
  background: var(--btn-primary-bg);
  color: var(--btn-primary-text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-weight: 500;
  transition: opacity .2s ease, background .2s ease;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.btn-toggle::before {
  content: '';
  position: absolute;
  left: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  transition: background var(--transition);
}

.btn-toggle.active::before {
  background: white;
}

.btn-toggle:not(.active) {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--border-color);
}

/* Advanced Options */
.adv-card {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.adv-card summary {
  padding: var(--spacing-md);
  cursor: pointer;
  user-select: none;
  list-style: none;
  font-weight: 500;
  transition: background var(--transition);
}

.adv-card summary::-webkit-details-marker {
  display: none;
}

.adv-card summary:hover {
  background: var(--bg-hover);
}

.adv-content {
  padding: var(--spacing-md);
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

/* Canvas */
.canvas-wrap {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  height: fit-content;
}

.canvas-viewport {
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: auto;
  position: relative;
}

#canvas {
  max-width: 100%;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  display: block;
}

/* Actions */
.actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-sm);
}

@media (min-width: 640px) {
  .actions {
    grid-template-columns: repeat(3, 1fr);
  }
}

.actions .btn {
  width: 100%;
}

.actions .btn:first-child {
  background: var(--accent-primary);
  color: white;
  border-color: var(--accent-primary);
}

.actions .btn:first-child:hover {
  background: var(--accent-hover);
}

/* Color Section */
.panel-colors {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--spacing-lg);
}

@media (max-width: 1024px) {
  .panel-colors {
    grid-template-columns: 1fr;
  }
}

.colors-card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.section-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 var(--spacing-md) 0;
}

.btn-eye {
  background: transparent;
  border: none;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.btn-eye:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.btn-eye::before {
  content: '👁️';
  font-size: 1.125rem;
}

/* Color Chips */
.chips {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: var(--spacing-xs);
  margin-top: var(--spacing-md);
}

.toggle-color {
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  padding: var(--spacing-sm);
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
}

.toggle-color:hover {
  transform: scale(1.05);
}

.toggle-color.active {
  border-color: var(--text-primary);
  box-shadow: 0 0 0 1px var(--text-primary);
}

.toggle-color:not(.active) {
  opacity: 0.3;
}

/* Color List */
#color-list {
  margin-top: var(--spacing-md);
}

/* Footer */
.site-footer {
  background: var(--block-bg);
  border-top: 1px solid var(--border-color);
  padding: var(--spacing-lg);
  margin-top: auto;
}

.footer-content {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* Toast */
.toast {
  position: fixed;
  bottom: var(--spacing-lg);
  right: var(--spacing-lg);
  background: var(--block-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-elevated);
  min-width: 250px;
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 1000;
}

.toast.success {
  background: #22c55e;
  border-color: #22c55e;
  color: white;
}

.toast.error {
  background: #ef4444;
  border-color: #ef4444;
  color: white;
}

.toast.info {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: white;
}

/* Responsive */
@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-md);
  }
  
  .main-container {
    padding: var(--spacing-md);
  }
  
  .dimensions {
    grid-template-columns: 1fr;
  }
  
  .chips {
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
  }
}