:root {
  --bg-primary: #ffffff;
  --bg-secondary: #fafafa;
  --bg-card: #ffffff;
  --bg-hover: #f5f5f5;

  --text-primary: #1a1a1a;
  --text-secondary: #666666;
  --text-tertiary: #999999;

  --border-color: #e5e5e5;
  --border-hover: #d4d4d4;

  --accent-primary: #6366f1;
  --accent-hover: #4f46e5;
  --accent-light: #eef2ff;

  --danger: #ef4444;

  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.1);

  --radius: 8px;
  --transition: all 0.15s ease;
}

[data-theme="dark"] {
  --bg-primary: #0a0a0a;
  --bg-secondary: #1a1a1a;
  --bg-card: #1a1a1a;
  --bg-hover: #2a2a2a;

  --text-primary: #f5f5f5;
  --text-secondary: #a3a3a3;
  --text-tertiary: #737373;

  --border-color: #2a2a2a;
  --border-hover: #3a3a3a;

  --accent-primary: #818cf8;
  --accent-hover: #6366f1;
  --accent-light: #312e81;

  --shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.4);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  padding: 16px;
  transition: var(--transition);
  line-height: 1.5;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
}

/* Header */
.header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 16px 20px;
  border-radius: var(--radius);
  margin-bottom: 16px;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header h1 {
  font-size: 20px;
  font-weight: 600;
}

.theme-toggle {
  width: 36px;
  height: 36px;
  border-radius: 6px;
  border: none;
  background: rgba(255, 255, 255, 0.2);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  position: relative;
}

.theme-toggle:hover {
  background: rgba(255, 255, 255, 0.3);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
  position: absolute;
  transition: var(--transition);
}

.sun-icon {
  opacity: 1;
  transform: rotate(0deg);
}

.moon-icon {
  opacity: 0;
  transform: rotate(90deg);
}

[data-theme="dark"] .sun-icon {
  opacity: 0;
  transform: rotate(90deg);
}

[data-theme="dark"] .moon-icon {
  opacity: 1;
  transform: rotate(0deg);
}

/* Main Grid */
.main-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

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

/* Card */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
  transition: var(--transition);
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  background: var(--accent-light);
  color: var(--accent-primary);
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
}

/* Input Group */
.input-group {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.text-input {
  flex: 1;
  padding: 10px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  font-size: 14px;
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: var(--transition);
  font-family: inherit;
}

.text-input:focus {
  outline: none;
  border-color: var(--accent-primary);
}

.text-input::placeholder {
  color: var(--text-tertiary);
}

/* Buttons */
.btn {
  padding: 10px 16px;
  border: none;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: inherit;
  white-space: nowrap;
}

.btn svg {
  width: 16px;
  height: 16px;
}

.btn-primary {
  background: var(--accent-primary);
  color: white;
}

.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
}

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

.btn-secondary {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-hover);
}

.btn-outline {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.btn-outline:hover:not(:disabled) {
  background: var(--bg-hover);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

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

.btn-delete {
  background: var(--danger);
  color: white;
  padding: 6px 10px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
  min-width: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-delete:hover {
  background: #dc2626;
}

/* Texts List */
.texts-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.text-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  transition: var(--transition);
}

.text-item:hover {
  border-color: var(--border-hover);
}

.text-item input {
  flex: 1;
  padding: 6px 10px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 14px;
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: var(--transition);
  font-family: inherit;
}

.text-item input:focus {
  outline: none;
  border-color: var(--accent-primary);
}

/* Settings */
.settings-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.setting-row {
  display: grid;
  grid-template-columns: 100px 1fr;
  align-items: center;
  gap: 12px;
}

.setting-label {
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
}

.setting-control {
  display: flex;
  align-items: center;
  gap: 10px;
}

.slider {
  flex: 1;
  height: 4px;
  border-radius: 2px;
  background: var(--bg-secondary);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent-primary);
  cursor: pointer;
  transition: var(--transition);
}

.slider::-webkit-slider-thumb:hover {
  transform: scale(1.1);
}

.slider::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent-primary);
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.slider::-moz-range-thumb:hover {
  transform: scale(1.1);
}

.value-display {
  color: var(--text-primary);
  font-weight: 500;
  min-width: 40px;
  text-align: right;
  font-size: 13px;
  padding: 4px 8px;
  background: var(--bg-secondary);
  border-radius: 4px;
}

.select-input {
  padding: 8px 10px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 13px;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
  width: 100%;
}

.select-input:focus {
  outline: none;
  border-color: var(--accent-primary);
}

.color-input {
  width: 40px;
  height: 32px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
  background: var(--bg-primary);
}

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

.color-value {
  font-family: "Courier New", monospace;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 4px 8px;
  background: var(--bg-secondary);
  border-radius: 4px;
}

.alignment-buttons {
  display: flex;
  gap: 6px;
}

.align-btn {
  flex: 1;
  padding: 8px;
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.align-btn svg {
  width: 16px;
  height: 16px;
  stroke: var(--text-secondary);
  transition: var(--transition);
}

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

.align-btn:hover svg {
  stroke: var(--accent-primary);
}

.align-btn.active {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
}

.align-btn.active svg {
  stroke: white;
}

/* Crop Editor */
.crop-editor {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.crop-canvas-container {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 5;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: crosshair;
}

.crop-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.crop-box {
  position: absolute;
  border: 2px solid var(--accent-primary);
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.5);
  cursor: move;
  display: none;
}

.crop-box.active {
  display: block;
}

.crop-handle {
  position: absolute;
  width: 10px;
  height: 10px;
  background: white;
  border: 2px solid var(--accent-primary);
  border-radius: 50%;
}

.crop-handle.nw {
  top: -5px;
  left: -5px;
  cursor: nw-resize;
}

.crop-handle.ne {
  top: -5px;
  right: -5px;
  cursor: ne-resize;
}

.crop-handle.sw {
  bottom: -5px;
  left: -5px;
  cursor: sw-resize;
}

.crop-handle.se {
  bottom: -5px;
  right: -5px;
  cursor: se-resize;
}

.crop-handle.n {
  top: -5px;
  left: 50%;
  transform: translateX(-50%);
  cursor: n-resize;
}

.crop-handle.s {
  bottom: -5px;
  left: 50%;
  transform: translateX(-50%);
  cursor: s-resize;
}

.crop-handle.w {
  left: -5px;
  top: 50%;
  transform: translateY(-50%);
  cursor: w-resize;
}

.crop-handle.e {
  right: -5px;
  top: 50%;
  transform: translateY(-50%);
  cursor: e-resize;
}

.crop-controls {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* Panel Viewer */
.panel-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-btn {
  width: 32px;
  height: 32px;
  padding: 0;
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  border-radius: var(--radius);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.nav-btn:hover:not(:disabled) {
  background: var(--bg-hover);
  border-color: var(--accent-primary);
}

.nav-btn:hover:not(:disabled) svg {
  stroke: var(--accent-primary);
}

.nav-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.nav-btn svg {
  width: 16px;
  height: 16px;
  stroke: var(--text-secondary);
}

.panel-indicator {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
  min-width: 50px;
  text-align: center;
}

.panel-viewer {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.panel-display {
  background: var(--bg-secondary);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 150px;
}

.panel-canvas {
  border-radius: var(--radius);
  display: block;
  max-width: 100%;
  box-shadow: var(--shadow-md);
}

.panel-actions {
  display: flex;
  gap: 8px;
}

.panel-actions .btn {
  flex: 1;
  justify-content: center;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 32px 16px;
  color: var(--text-tertiary);
}

.empty-state svg {
  width: 48px;
  height: 48px;
  margin: 0 auto 12px;
  opacity: 0.5;
}

.empty-state p {
  font-size: 14px;
}

/* Responsive */
@media (max-width: 768px) {
  body {
    padding: 12px;
  }

  .header {
    padding: 12px 16px;
  }

  .header h1 {
    font-size: 18px;
  }

  .setting-row {
    grid-template-columns: 80px 1fr;
    gap: 10px;
  }

  .crop-controls {
    flex-direction: column;
  }

  .crop-controls .btn {
    width: 100%;
    justify-content: center;
  }
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.text-item {
  animation: fadeIn 0.2s ease-out;
}

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

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

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

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