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

:root {
  --bg-dark: #0f0f1e;
  --bg-card: #1a1a2e;
  --bg-hover: #252540;
  --primary: #6366f1;
  --primary-light: #818cf8;
  --primary-dark: #4f46e5;
  --secondary: #ec4899;
  --accent: #14b8a6;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --border: #334155;
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
}

body {
  font-family: 'Sarabun', -apple-system, BlinkMacSystemFont, sans-serif;
  background: linear-gradient(135deg, var(--bg-dark) 0%, #1a1a2e 100%);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  width: 100%;
  max-width: 420px;
  padding: 16px;
  padding-bottom: 180px;
  margin: 0 auto;
}

/* Navigation Tabs */
.tabs {
  display: flex;
  gap: 2px;
  background: var(--bg-card);
  padding: 4px;
  border-radius: 12px;
  margin-bottom: 16px;
  border: 1px solid var(--border);
}

.tab-btn {
  flex: 1;
  padding: 10px;
  background: transparent;
  border: none;
  border-radius: 8px;
  color: var(--text-secondary);
  font-family: 'Prompt', sans-serif;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

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

.tab-btn.active {
  background: var(--primary);
  color: white;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

/* Tab Content */
.tab-content {
  display: none;
  animation: fadeIn 0.3s ease;
}

.tab-content.active {
  display: block;
}

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

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Header */
.header {
  position: relative;
  text-align: center;
  padding: 16px;
  margin-bottom: 16px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  overflow: hidden;
}

.header-gradient {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.1) 50%, transparent 70%);
  animation: shimmer 3s infinite;
}

@keyframes shimmer {

  0%,
  100% {
    transform: translateX(-100%);
  }

  50% {
    transform: translateX(100%);
  }
}

.title {
  position: relative;
  font-family: 'Prompt', sans-serif;
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 4px;
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
}

.subtitle {
  position: relative;
  font-size: 12px;
  opacity: 0.95;
  font-weight: 300;
}

/* Section */
.section {
  background: var(--bg-card);
  border-radius: 10px;
  padding: 14px;
  margin-bottom: 12px;
  border: 1px solid var(--border);
  transition: all 0.3s ease;
}

.section:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.15);
}

.section-title {
  font-family: 'Prompt', sans-serif;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
}

/* Upload Area */
.upload-area {
  position: relative;
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 32px 20px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  background: rgba(99, 102, 241, 0.05);
}

.upload-area:hover {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.1);
}

.upload-area.drag-over {
  border-color: var(--accent);
  background: rgba(20, 184, 166, 0.1);
  transform: scale(1.02);
}

.upload-placeholder svg {
  color: var(--primary);
  margin-bottom: 12px;
}

.upload-placeholder p {
  font-size: 16px;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.upload-hint {
  font-size: 13px;
  color: var(--text-secondary);
}

.image-preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  width: 100%;
  margin-top: 12px;
}

.image-preview-item {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  padding-bottom: 100%;
  /* Square aspect ratio */
  background: var(--bg-card);
  border: 1px solid var(--border);
}

.image-preview-item img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.remove-btn {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(239, 68, 68, 0.9);
  color: white;
  border: none;
  cursor: pointer;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  z-index: 10;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.remove-btn:hover {
  background: var(--error);
  transform: scale(1.1);
}

/* Style Grid */
.style-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.style-card {
  background: var(--bg-hover);
  border: 2px solid transparent;
  border-radius: 10px;
  padding: 14px 12px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-align: center;
}

.style-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(99, 102, 241, 0.2);
}

.style-card.active {
  border-color: var(--primary);
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.2) 0%, rgba(236, 72, 153, 0.2) 100%);
}

.style-icon {
  font-size: 28px;
  margin-bottom: 6px;
}

.style-name {
  font-family: 'Prompt', sans-serif;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 2px;
  color: var(--text-primary);
}

.style-desc {
  font-size: 11px;
  color: var(--text-secondary);
}

/* Ratio Grid */
.ratio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.ratio-btn {
  background: var(--bg-hover);
  border: 2px solid transparent;
  border-radius: 10px;
  padding: 12px 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.ratio-btn:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}

.ratio-btn.active {
  border-color: var(--accent);
  background: rgba(20, 184, 166, 0.15);
}

.ratio-box {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  border-radius: 4px;
}

.ratio-box.square {
  width: 32px;
  height: 32px;
}

.ratio-box.portrait-34 {
  width: 28px;
  height: 38px;
}

.ratio-box.portrait-45 {
  width: 30px;
  height: 38px;
}

.ratio-box.landscape-43 {
  width: 38px;
  height: 28px;
}

.ratio-box.portrait-23 {
  width: 26px;
  height: 38px;
}

.ratio-box.portrait-916 {
  width: 22px;
  height: 38px;
}

.ratio-box.landscape-169 {
  width: 44px;
  height: 26px;
}

.ratio-btn span {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

/* Emotion Grid */
.emotion-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.emotion-btn {
  background: var(--bg-hover);
  border: 2px solid transparent;
  border-radius: 10px;
  padding: 10px 12px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  text-align: center;
}

.emotion-btn:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}

.emotion-btn.active {
  border-color: var(--secondary);
  background: rgba(236, 72, 153, 0.2);
}

/* Form Elements */
.form-group {
  margin-bottom: 12px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-weight: 400;
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--primary);
}

.text-input {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg-hover);
  border: 2px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 13px;
  font-family: 'Sarabun', sans-serif;
  transition: all 0.3s ease;
  resize: vertical;
}

.text-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.text-style-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

/* Position Grid */
.position-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.position-btn {
  padding: 8px 12px;
  background: var(--bg-hover);
  border: 2px solid transparent;
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.position-btn:hover {
  border-color: var(--primary);
}

.position-btn.active {
  border-color: var(--accent);
  background: rgba(20, 184, 166, 0.2);
}

/* Checkbox Style */
.checkbox-style {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: var(--bg-hover);
  border: 2px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.checkbox-style:hover {
  border-color: var(--primary);
}

.checkbox-style input[type="checkbox"] {
  width: 16px;
  height: 16px;
  cursor: pointer;
  accent-color: var(--primary);
}

.checkbox-style span {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

/* Font Style Grid */
.font-style-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.font-style-btn {
  padding: 8px 12px;
  background: var(--bg-hover);
  border: 2px solid transparent;
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.font-style-btn:hover {
  border-color: var(--primary);
}

.font-style-btn.active {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.2);
}

.color-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.color-picker-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 12px;
  background: var(--bg-hover);
  border: 2px solid var(--border);
  border-radius: 8px;
  transition: all 0.3s ease;
}

.color-picker-wrapper:focus-within {
  border-color: var(--primary);
}

.color-picker-wrapper input[type="color"] {
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

.color-label {
  font-size: 13px;
  font-family: 'Courier New', monospace;
  color: var(--text-secondary);
}

.custom-prompt {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg-hover);
  border: 2px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 13px;
  font-family: 'Sarabun', sans-serif;
  resize: vertical;
  min-height: 80px;
  transition: all 0.3s ease;
}

.custom-prompt:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Action Buttons */
.action-buttons {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 16px;
  background: rgba(15, 15, 30, 0.95);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--border);
  z-index: 100;
  display: flex;
  justify-content: center;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
  margin: 0;
}

.action-buttons .btn {
  max-width: 420px;
  width: 100%;
}

.btn {
  padding: 12px 20px;
  border: none;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  font-family: 'Prompt', sans-serif;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.btn-full {
  width: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(99, 102, 241, 0.4);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
}

#generateBtn {
  background: linear-gradient(135deg, #ef4444 0%, #d50000 100%);
  box-shadow: 0 4px 16px rgba(239, 68, 68, 0.4);
}

#generateBtn:hover:not(:disabled) {
  background: linear-gradient(135deg, #f87171 0%, #b71c1c 100%);
  box-shadow: 0 8px 24px rgba(239, 68, 68, 0.5);
  transform: translateY(-2px);
}

.btn-secondary {
  background: linear-gradient(135deg, var(--accent) 0%, #0d9488 100%);
  color: white;
  box-shadow: 0 4px 16px rgba(20, 184, 166, 0.3);
}

.btn-secondary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(20, 184, 166, 0.4);
}

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

/* Status Message */
.status-message {
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 14px;
  text-align: center;
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.status-message.success {
  background: rgba(16, 185, 129, 0.2);
  border: 1px solid var(--success);
  color: var(--success);
}

.status-message.error {
  background: rgba(239, 68, 68, 0.2);
  border: 1px solid var(--error);
  color: var(--error);
}

.status-message.info {
  background: rgba(99, 102, 241, 0.2);
  border: 1px solid var(--primary);
  color: var(--primary-light);
}

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

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

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

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

/* Loading Animation */
.loading {
  position: relative;
  pointer-events: none;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* History Section */
.history-section {
  margin-top: 16px;
}

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

.history-header .section-title {
  margin-bottom: 0;
}

.btn-small {
  padding: 6px 12px;
  background: var(--bg-hover);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-primary);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-small:hover {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.1);
}

.history-stats {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background: var(--bg-hover);
  border-radius: 8px;
  margin-bottom: 12px;
  font-size: 12px;
  color: var(--text-secondary);
}

.history-list {
  max-height: 300px;
  overflow-y: auto;
}

.history-item {
  background: var(--bg-hover);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 8px;
  font-size: 12px;
  transition: all 0.3s ease;
}

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

.history-item.success {
  border-left: 3px solid var(--success);
}

.history-item.error {
  border-left: 3px solid var(--error);
}

.history-date {
  color: var(--text-secondary);
  font-size: 11px;
  margin-bottom: 6px;
}

.history-settings {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 4px;
  margin-top: 6px;
  font-size: 11px;
  color: var(--text-secondary);
}

.history-headline {
  color: var(--text-primary);
  font-weight: 600;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}


/* Remover Tool Styles */
.canvas-container {
  border: 2px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 0 !important;
}

#maskCanvas {
  opacity: 1;
  touch-action: none;
}

.brush-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

#brushSize {
  height: 6px;
  -webkit-appearance: none;
  background: var(--bg-hover);
  border-radius: 3px;
  outline: none;
}

#brushSize::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  background: var(--primary);
  border-radius: 50%;
  cursor: pointer;
  transition: transform 0.2s;
}

#brushSize::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

#brushSizeVal {
  font-size: 13px;
  color: var(--text-secondary);
  min-width: 40px;
}

.preset-controls {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.preset-controls .text-input {
  margin-bottom: 0 !important;
}

.preset-list {
  max-height: 200px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-hover);
}

.preset-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.2s ease;
}

.preset-item:last-child {
  border-bottom: none;
}

.preset-item:hover {
  background: rgba(99, 102, 241, 0.1);
}

.preset-name {
  flex-grow: 1;
  font-size: 13px;
  color: var(--text-primary);
  font-weight: 500;
}

.preset-delete-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 14px;
  padding: 4px;
  opacity: 0.6;
  transition: all 0.2s ease;
}

.preset-delete-btn:hover {
  opacity: 1;
  transform: scale(1.1);
}

/* Tabs */
.tabs {
  display: flex;
  margin-bottom: 20px;
  background: var(--bg-hover);
  padding: 4px;
  border-radius: 12px;
  position: relative;
  z-index: 10;
}

.tab-btn {
  flex: 1;
  padding: 8px 12px;
  background: transparent;
  border: none;
  border-radius: 8px;
  color: var(--text-secondary);
  font-family: 'Prompt', sans-serif;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.tab-btn.active {
  background: var(--bg-card);
  color: var(--primary);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.tab-content {
  display: none;
  animation: fadeIn 0.3s ease;
}

.tab-content.active {
  display: block;
}

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

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Grid Creator Styles */
.grid-images-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-top: 12px;
  min-height: 40px;
}

.grid-thumb-item {
  position: relative;
  aspect-ratio: 1;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-hover);
}

.grid-thumb-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.section-status {
  text-align: right;
  margin-top: 5px;
  color: var(--text-secondary);
}

.template-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  max-height: 300px;
  overflow-y: auto;
  padding-right: 4px;
}

.template-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 10px;
  background: var(--bg-hover);
  border: 2px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 12px;
  transition: all 0.2s;
}

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

.template-btn.active {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.1);
  color: var(--primary);
}

.template-preview {
  width: 100%;
  aspect-ratio: 1;
  position: relative;
  background-color: transparent;
  border-radius: 6px;
  overflow: hidden;
}

.preview-slot {
  position: absolute;
  background-color: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-sizing: border-box;
  /* Simulate gap */
  transform: scale(0.96);
  border-radius: 4px;
  transition: all 0.3s ease;
}

.template-btn:hover .preview-slot {
  border-color: var(--primary);
  background-color: var(--bg-hover);
}

.template-btn.active .preview-slot {
  background-color: var(--primary);
  /* Active Color */
  border-color: var(--primary-light);
  box-shadow: 0 0 8px rgba(99, 102, 241, 0.4);
}

/* Just basic styling for now, user will see the output */

.canvas-preview-container {
  width: 100%;
  min-height: 200px;
  background: #111;
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 20px;
  overflow: hidden;
  padding: 10px;
}