/* ============================================
   AI 图片工坊 - 样式表
   ============================================ */

:root {
  /* 色彩系统 - 深色工业风 */
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: #16161f;
  --bg-elevated: #1c1c28;
  --bg-input: #1a1a25;

  --border-default: #2a2a3a;
  --border-hover: #3a3a50;
  --border-focus: #6366f1;

  --text-primary: #e8e8f0;
  --text-secondary: #8888a0;
  --text-muted: #555570;
  --text-accent: #a78bfa;

  --accent-primary: #6366f1;
  --accent-hover: #818cf8;
  --accent-glow: rgba(99, 102, 241, 0.3);
  --accent-secondary: #06b6d4;
  --accent-danger: #ef4444;
  --accent-success: #22c55e;
  --accent-warning: #f59e0b;

  /* 尺寸 */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  /* 字体 */
  --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'Space Mono', 'Fira Code', monospace;

  /* 动画 */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============ 基础重置 ============ */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* ============ 背景装饰 ============ */
.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(99, 102, 241, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99, 102, 241, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

.bg-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
}

.bg-glow-1 {
  width: 500px;
  height: 500px;
  background: rgba(99, 102, 241, 0.08);
  top: -200px;
  right: -100px;
}

.bg-glow-2 {
  width: 400px;
  height: 400px;
  background: rgba(6, 182, 212, 0.06);
  bottom: -150px;
  left: -100px;
}

/* ============ 头部导航 ============ */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-default);
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.logo-text {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--text-primary), var(--text-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-tabs {
  display: flex;
  gap: 4px;
  flex: 1;
}

.nav-tab {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.nav-tab:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.nav-tab.active {
  color: var(--accent-hover);
  background: rgba(99, 102, 241, 0.1);
}

.header-status {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
  transition: background var(--transition-normal);
}

.status-dot.connected {
  background: var(--accent-success);
  box-shadow: 0 0 8px rgba(34, 197, 94, 0.5);
}

.status-dot.error {
  background: var(--accent-danger);
}

.status-text {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ============ 主内容 ============ */
.main {
  position: relative;
  z-index: 1;
  max-width: 1400px;
  margin: 0 auto;
  padding: 32px 24px;
}

/* ============ 面板 ============ */
.panel {
  display: none;
  animation: fadeIn 0.3s ease;
}

.panel.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.panel-header {
  margin-bottom: 28px;
}

.panel-header h2 {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 6px;
}

.panel-header p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* ============ 上传区域 ============ */
.upload-zone {
  border: 2px dashed var(--border-default);
  border-radius: var(--radius-xl);
  padding: 48px 32px;
  text-align: center;
  transition: all var(--transition-normal);
  cursor: pointer;
  background: rgba(22, 22, 31, 0.5);
}

.upload-zone:hover,
.upload-zone.drag-over {
  border-color: var(--accent-primary);
  background: rgba(99, 102, 241, 0.05);
}

.upload-zone.drag-over {
  transform: scale(1.01);
  box-shadow: 0 0 40px var(--accent-glow);
}

.upload-icon {
  color: var(--text-muted);
  margin-bottom: 16px;
  transition: all var(--transition-normal);
}

.upload-zone:hover .upload-icon {
  color: var(--accent-primary);
  transform: translateY(-4px);
}

.upload-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.upload-subtitle {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: 20px;
}

.upload-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
}

/* ============ 按钮 ============ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border-color: var(--border-default);
}

.btn-secondary:hover:not(:disabled) {
  border-color: var(--border-hover);
  background: var(--bg-card);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: transparent;
}

.btn-ghost:hover:not(:disabled) {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.btn-danger {
  background: rgba(239, 68, 68, 0.1);
  color: var(--accent-danger);
  border-color: rgba(239, 68, 68, 0.3);
}

.btn-danger:hover:not(:disabled) {
  background: rgba(239, 68, 68, 0.2);
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: white;
  border: none;
}

.btn-accent:hover:not(:disabled) {
  box-shadow: 0 4px 20px var(--accent-glow);
  transform: translateY(-1px);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.8rem;
}

.btn-lg {
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 600;
}

/* ============ 工具栏 ============ */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  margin-top: 20px;
  border-bottom: 1px solid var(--border-default);
}

.toolbar-left,
.toolbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

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

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  accent-color: var(--accent-primary);
}

/* ============ 图片网格 ============ */
.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.image-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-card);
  border: 2px solid transparent;
  transition: all var(--transition-normal);
  cursor: pointer;
  aspect-ratio: 1;
}

.image-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.image-card.selected {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 1px var(--accent-primary), 0 4px 16px var(--accent-glow);
}

.image-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.image-card .card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-fast);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 10px;
}

.image-card:hover .card-overlay {
  opacity: 1;
}

.card-name {
  font-size: 0.75rem;
  color: white;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.card-size {
  font-size: 0.65rem;
  color: rgba(255,255,255,0.6);
}

.image-card .card-actions {
  position: absolute;
  top: 8px;
  right: 8px;
  display: flex;
  gap: 6px;
  opacity: 0;
  transition: opacity var(--transition-fast);
  z-index: 10;
}

.image-card:hover .card-actions {
  opacity: 1;
}

.image-card .card-actions .btn {
  padding: 6px 8px;
  border-radius: 6px;
  backdrop-filter: blur(4px);
  background: rgba(0,0,0,0.6);
  border: 1px solid rgba(255,255,255,0.2);
  color: white;
}

.image-card .card-actions .btn:hover {
  background: rgba(0,0,0,0.8);
  border-color: rgba(255,255,255,0.4);
}

.image-card .card-checkbox {
  position: absolute;
  top: 8px;
  left: 8px;
  width: 24px;
  height: 24px;
  border-radius: 6px;
  border: 2px solid rgba(255,255,255,0.6);
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 5;
}

.image-card:hover .card-checkbox,
.image-card.selected .card-checkbox {
  border-color: rgba(255,255,255,0.8);
}

.image-card.selected .card-checkbox {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
}

.card-checkbox svg {
  width: 14px;
  height: 14px;
  color: white;
  opacity: 0;
}

.image-card.selected .card-checkbox svg {
  opacity: 1;
}

/* ============ 表单 ============ */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}

.form-label .required {
  color: var(--accent-danger);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
  outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238888a0' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.form-textarea {
  resize: vertical;
  min-height: 80px;
}

.form-textarea.code-editor {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.6;
  background: var(--bg-primary);
  border-color: var(--border-default);
}

.form-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 6px;
}

.form-hint code {
  background: rgba(99, 102, 241, 0.1);
  color: var(--text-accent);
  padding: 1px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
}

.input-with-icon {
  position: relative;
}

.input-with-icon svg {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}

.input-with-icon .form-input {
  padding-left: 40px;
}

.form-actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

.flex-1 {
  flex: 1;
}

.config-row {
  display: flex;
  gap: 20px;
}

/* ============ 关键词标签 ============ */
.keyword-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  padding: 6px 14px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: 20px;
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.chip:hover {
  border-color: var(--accent-primary);
  color: var(--accent-hover);
  background: rgba(99, 102, 241, 0.08);
}

/* ============ 滑块 ============ */
.slider-group {
  display: flex;
  align-items: center;
  gap: 16px;
}

.slider {
  flex: 1;
  -webkit-appearance: none;
  height: 6px;
  background: var(--bg-elevated);
  border-radius: 3px;
  outline: none;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent-primary);
  cursor: pointer;
  box-shadow: 0 2px 8px var(--accent-glow);
  transition: transform var(--transition-fast);
}

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

.slider-value {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent-hover);
  min-width: 48px;
  text-align: right;
}

/* ============ 进度 ============ */
.progress-section {
  margin-top: 28px;
  padding: 24px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-default);
}

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

.progress-header h3 {
  font-size: 1rem;
  font-weight: 600;
}

.progress-text {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-accent);
}

.progress-bar {
  height: 8px;
  background: var(--bg-elevated);
  border-radius: 4px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
  border-radius: 4px;
  transition: width var(--transition-normal);
  width: 0%;
}

.progress-log {
  margin-top: 16px;
  max-height: 200px;
  overflow-y: auto;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.8;
}

.log-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
  color: var(--text-secondary);
}

.log-item.success { color: var(--accent-success); }
.log-item.error { color: var(--accent-danger); }
.log-item.info { color: var(--accent-secondary); }

/* ============ 结果 ============ */
.results-section {
  margin-top: 28px;
}

.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.results-header h3 {
  font-size: 1.1rem;
  font-weight: 700;
}

.results-stats {
  display: flex;
  gap: 20px;
}

.stat-item {
  text-align: center;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-hover);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ============ 比对结果组 ============ */
.compare-groups {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.compare-group {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-default);
}

.compare-group-images {
  display: flex;
  gap: 12px;
  flex: 1;
}

.compare-group img {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.compare-group-info {
  flex: 1;
}

.compare-group-similarity {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent-warning);
}

.compare-group-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 2px;
}

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

/* ============ 设置 ============ */
.settings-layout {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.settings-card {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.card-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-default);
}

.card-header h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1rem;
  font-weight: 700;
}

.card-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.card-body {
  padding: 24px;
}

/* ============ 选中图片栏 ============ */
.selected-images-bar {
  padding: 12px 16px;
  background: rgba(99, 102, 241, 0.08);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: var(--radius-md);
  margin-top: 20px;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.selected-images-bar strong {
  color: var(--accent-hover);
}

/* ============ 操作按钮区 ============ */
.process-actions,
.compare-actions {
  margin-top: 24px;
  text-align: center;
}

/* ============ Toast 通知 ============ */
.toast-container {
  position: fixed;
  top: 80px;
  right: 24px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 12px 20px;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 500;
  backdrop-filter: blur(12px);
  animation: toastIn 0.3s ease, toastOut 0.3s ease 2.7s forwards;
  max-width: 360px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.toast.success {
  background: rgba(34, 197, 94, 0.15);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: var(--accent-success);
}

.toast.error {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: var(--accent-danger);
}

.toast.info {
  background: rgba(6, 182, 212, 0.15);
  border: 1px solid rgba(6, 182, 212, 0.3);
  color: var(--accent-secondary);
}

@keyframes toastIn {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes toastOut {
  from { opacity: 1; }
  to { opacity: 0; transform: translateX(40px); }
}

/* ============ 模态框 ============ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  z-index: 500;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 40px;
}

.modal-overlay.active {
  display: flex;
}

.modal-content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
}

.modal-close {
  position: absolute;
  top: -40px;
  right: 0;
  background: none;
  border: none;
  color: white;
  font-size: 2rem;
  cursor: pointer;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}

.modal-close:hover {
  opacity: 1;
}

.modal-image {
  max-width: 100%;
  max-height: 75vh;
  border-radius: var(--radius-md);
  object-fit: contain;
}

.modal-info {
  text-align: center;
  margin-top: 12px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ============ 空状态 ============ */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.empty-state svg {
  margin-bottom: 16px;
  opacity: 0.3;
}

.empty-state p {
  font-size: 0.9rem;
}

/* ============ 处理配置 ============ */
.process-config {
  padding: 24px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-default);
}

.compare-config {
  padding: 24px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-default);
}

/* ============ 响应式 ============ */
@media (max-width: 768px) {
  .header-inner {
    padding: 0 16px;
    gap: 12px;
  }

  .nav-tab span {
    display: none;
  }

  .nav-tab {
    padding: 8px 12px;
  }

  .main {
    padding: 20px 16px;
  }

  .config-row {
    flex-direction: column;
  }

  .image-grid {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 10px;
  }

  .upload-zone {
    padding: 32px 16px;
  }

  .upload-actions {
    flex-direction: column;
    align-items: center;
  }
}

/* ============ 滚动条 ============ */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--border-default);
  border-radius: 3px;
}

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