/* Formatter Web Studio - BoxyKit Modern Adaptive Design */

:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  /* Dark Theme (Default) */
  --bg-primary: #090d16;
  --bg-secondary: #0f172a;
  --bg-sidebar: rgba(13, 19, 33, 0.95);
  --bg-card: rgba(17, 24, 39, 0.75);
  --bg-card-subtle: rgba(22, 31, 50, 0.5);
  --bg-input: rgba(15, 23, 42, 0.9);

  --border-color: rgba(255, 255, 255, 0.08);
  --border-subtle: rgba(255, 255, 255, 0.04);
  --border-focus: #6366f1;

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent-primary: #6366f1;
  --accent-hover: #4f46e5;
  --accent-glow: rgba(99, 102, 241, 0.28);
  --accent-light: #818cf8;
  --accent-bg: rgba(99, 102, 241, 0.12);

  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5), 0 0 1px 1px rgba(255, 255, 255, 0.05);
  --sidebar-width: 280px;
  --header-height: 56px;
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --bg-gradient: radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.08) 0%, transparent 40%),
                      radial-gradient(circle at 90% 80%, rgba(168, 85, 247, 0.08) 0%, transparent 40%);
}

/* Light Theme Variables */
[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-sidebar: rgba(255, 255, 255, 0.95);
  --bg-card: rgba(255, 255, 255, 0.92);
  --bg-card-subtle: rgba(241, 245, 249, 0.85);
  --bg-input: #ffffff;

  --border-color: rgba(0, 0, 0, 0.08);
  --border-subtle: rgba(0, 0, 0, 0.04);
  --border-focus: #4f46e5;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;

  --accent-primary: #4f46e5;
  --accent-hover: #4338ca;
  --accent-glow: rgba(79, 70, 229, 0.2);
  --accent-light: #6366f1;
  --accent-bg: rgba(79, 70, 229, 0.08);

  --shadow-card: 0 10px 30px -10px rgba(15, 23, 42, 0.08), 0 0 1px 1px rgba(0, 0, 0, 0.04);
  --bg-gradient: radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.04) 0%, transparent 40%),
                      radial-gradient(circle at 90% 80%, rgba(168, 85, 247, 0.04) 0%, transparent 40%);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background-image: var(--bg-gradient);
  background-attachment: fixed;
  transition: background-color 0.2s ease, color 0.2s ease;
}

/* 背景光晕装饰 */
.bg-decorations {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.aurora-orb-1 {
  position: absolute;
  top: -150px;
  left: 20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.12) 0%, transparent 70%);
  filter: blur(60px);
}

.aurora-orb-2 {
  position: absolute;
  bottom: -150px;
  right: 15%;
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.1) 0%, transparent 70%);
  filter: blur(70px);
}

/* 顶部汉堡菜单按钮 (移动端) */
.menu-toggle-btn {
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 6px;
  display: none;
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s ease;
}

.menu-toggle-btn:hover {
  background: var(--bg-card-subtle);
}

/* 整体应用布局 */
.app-layout {
  display: flex;
  flex: 1;
  position: relative;
  z-index: 1;
  max-width: 1680px;
  width: 100%;
  margin: 0 auto;
}

/* 侧边导航栏 */
.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-sidebar);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  padding: 1rem 0.75rem;
  gap: 0.5rem;
  flex-shrink: 0;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), background-color 0.2s ease;
}

.sidebar-search {
  position: relative;
  margin-bottom: 0.75rem;
}

.sidebar-search-icon {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.sidebar-search-input {
  width: 100%;
  padding: 0.55rem 0.75rem 0.55rem 2.2rem;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.85rem;
  outline: none;
  transition: border-color 0.2s, background-color 0.2s;
}

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

.nav-group {
  margin-bottom: 0.75rem;
}

.nav-group-title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  padding: 0.25rem 0.5rem 0.5rem 0.5rem;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
  cursor: pointer;
  border: 1px solid transparent;
}

.nav-item:hover {
  background: var(--bg-card-subtle);
  color: var(--text-primary);
}

.nav-item.active {
  background: var(--accent-bg);
  border-color: rgba(99, 102, 241, 0.3);
  color: var(--accent-primary);
}

[data-theme="light"] .nav-item.active {
  border-color: rgba(79, 70, 229, 0.35);
  color: var(--accent-primary);
}

.nav-item-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  opacity: 0.85;
}

.nav-item.active .nav-item-icon {
  opacity: 1;
}

/* 主内容区 */
.main-content {
  flex: 1;
  padding: 1.5rem 2rem;
  overflow-y: auto;
  min-width: 0;
}

/* 顶部标题区 */
.tool-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.tool-header-left {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.tool-title {
  font-size: 1.45rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text-primary);
}

.tool-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* 工具栏控制区 */
.toolbar-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: 0.65rem 1rem;
  margin-bottom: 1.25rem;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.toolbar-group {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.toolbar-label {
  font-size: 0.82rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.select-ctrl {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.65rem;
  color: var(--text-primary);
  font-size: 0.85rem;
  outline: none;
  cursor: pointer;
  transition: var(--transition);
}

.select-ctrl:focus {
  border-color: var(--accent-primary);
}

/* 按钮风格 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.86rem;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary) 0%, #8b5cf6 100%);
  color: #ffffff;
  box-shadow: 0 2px 8px var(--accent-glow);
}

.btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

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

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

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

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

/* 双栏编辑器工作区 */
.workbench-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  min-height: 540px;
}

.pane-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.pane-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 1rem;
  background: var(--bg-card-subtle);
  border-bottom: 1px solid var(--border-color);
}

.pane-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pane-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.code-textarea {
  flex: 1;
  width: 100%;
  min-height: 480px;
  padding: 1rem;
  background: var(--bg-input);
  border: none;
  outline: none;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-primary);
  resize: vertical;
  tab-size: 2;
  white-space: pre;
  overflow-wrap: normal;
  overflow-x: auto;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.code-textarea::placeholder {
  color: var(--text-muted);
  opacity: 0.6;
}

/* 错误与焦点抖动动画 */
@keyframes shake-error {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-6px); }
  40%, 80% { transform: translateX(6px); }
}

.input-error-highlight {
  animation: shake-error 0.5s ease-in-out;
  border-color: var(--color-danger) !important;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.25) !important;
}

/* Toast 提示 */
.toast-msg {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--bg-sidebar);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--text-primary);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  font-size: 0.9rem;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 1000;
}

.toast-msg.show {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.toast-msg.error {
  border-color: var(--color-danger);
  color: #ef4444;
  background: rgba(239, 68, 68, 0.1);
}

.toast-msg.success {
  border-color: var(--color-success);
  color: #10b981;
  background: rgba(16, 185, 129, 0.1);
}

/* 移动端遮罩与响应式适配 */
.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 99;
}

@media (max-width: 900px) {
  .menu-toggle-btn {
    display: inline-flex;
  }

  .sidebar {
    position: fixed;
    top: var(--header-height, 56px);
    bottom: 0;
    left: 0;
    z-index: 100;
    transform: translateX(-100%);
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.5);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar.open + .sidebar-backdrop {
    display: block;
  }

  .workbench-grid {
    grid-template-columns: 1fr;
  }

  .main-content {
    padding: 1rem;
  }
}