/* 使用 CSS 变量支持浅色/深色模式 */
:root {
  /* 浅色模式颜色 */
  --bg-primary: #fafafa;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f4f6f8;
  --bg-modal-overlay: rgba(220, 224, 229, 0.9);
  --bg-modal: #ffffff;
  --bg-tab: #f7f7f7;
  --bg-tab-active: #eaf3ff;
  --bg-button: #4CAF50;
  --bg-button-hover: #45a049;
  --bg-input: #ffffff;
  --bg-input-readonly: #f4f6f8;
  --bg-progress: #e0e0e0;
  --bg-progress-fill: #4CAF50;
  
  --text-primary: #333333;
  --text-secondary: #666666;
  --text-tertiary: #999999;
  --text-inverse: #ffffff;
  
  --border-color: #cccccc;
  --border-color-light: #ddd;
  --border-color-active: #9ec5fe;
  --border-color-focus: #1aba2a;
  --border-color-modal: #888888;
  
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-modal: 0 4px 16px rgba(0, 0, 0, 0.1);
}

@media (prefers-color-scheme: dark) {
  :root {
    /* 深色模式颜色 */
    --bg-primary: #0b0d10;
    --bg-secondary: #12161c;
    --bg-tertiary: #0f141b;
    --bg-modal-overlay: rgba(0, 0, 0, 0.7);
    --bg-modal: #1a1f28;
    --bg-tab: #0f141b;
    --bg-tab-active: #0b3d75;
    --bg-button: #4CAF50;
    --bg-button-hover: #45a049;
    --bg-input: #0f141b;
    --bg-input-readonly: #0f141b;
    --bg-progress: #1f2630;
    --bg-progress-fill: #4CAF50;
    
    --text-primary: #e6e9ef;
    --text-secondary: #b8bcc4;
    --text-tertiary: #8a8d94;
    --text-inverse: #ffffff;
    
    --border-color: #1f2630;
    --border-color-light: #1f2630;
    --border-color-active: #2b5ea8;
    --border-color-focus: #1aba2a;
    --border-color-modal: #2a2f38;
    
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-modal: 0 4px 16px rgba(0, 0, 0, 0.5);
  }
}

/* 基础样式 */
html, body {
  height: 100%;
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 24px;
}

h1 {
  color: var(--text-primary);
  margin: 0 0 24px 0;
}

.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color-light);
  border-radius: 12px;
  padding: 16px;
  box-shadow: var(--shadow);
  transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

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

.tab {
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  background: var(--bg-tab);
  border-radius: 8px;
  cursor: pointer;
  color: var(--text-primary);
  transition: all 0.2s ease;
  font-size: 14px;
}

.tab:hover {
  border-color: var(--border-color-active);
  background: var(--bg-tab-active);
}

.tab.active {
  background: var(--bg-tab-active);
  border-color: var(--border-color-active);
  color: var(--text-primary);
}

.panel {
  display: none;
}

.panel.active {
  display: block;
}

.row {
  margin: 10px 0;
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.row label {
  color: var(--text-primary);
  min-width: fit-content;
}

.row.small {
  color: var(--text-secondary);
  font-size: 12px;
}

input[type="text"],
input[type="url"],
input[type="file"],
input[type="password"],
input[readonly] {
  flex: 1;
  min-width: 240px;
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: 14px;
  transition: all 0.2s ease;
}

input[readonly] {
  background: var(--bg-input-readonly);
}

input:focus {
  outline: none;
  border-color: var(--border-color-focus);
  box-shadow: 0 0 0 2px rgba(26, 186, 42, 0.1);
}

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

button {
  padding: 8px 16px;
  background: var(--bg-button);
  color: var(--text-inverse);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.2s ease;
  white-space: nowrap;
}

button:hover:not(:disabled) {
  background: var(--bg-button-hover);
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

progress {
  width: 100%;
  height: 12px;
  border-radius: 6px;
  border: none;
  background: var(--bg-progress);
  overflow: hidden;
}

progress::-webkit-progress-bar {
  background: var(--bg-progress);
  border-radius: 6px;
}

progress::-webkit-progress-value {
  background: var(--bg-progress-fill);
  border-radius: 6px;
  transition: width 0.3s ease;
}

progress::-moz-progress-bar {
  background: var(--bg-progress-fill);
  border-radius: 6px;
}

footer {
  margin-top: 12px;
  color: var(--text-tertiary);
  font-size: 12px;
  text-align: center;
}

/* 模态框样式 */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: var(--bg-modal-overlay);
  backdrop-filter: blur(4px);
  transition: opacity 0.3s ease;
}

.modal-content {
  display: flex;
  flex-direction: column;
  background-color: var(--bg-modal);
  padding: 24px;
  border: 1px solid var(--border-color-modal);
  width: 320px;
  max-width: 90%;
  margin: 15% auto;
  border-radius: 12px;
  box-shadow: var(--shadow-modal);
  color: var(--text-primary);
  transition: all 0.3s ease;
  gap: 16px;
}

.modal-content p {
  margin: 0;
  font-size: 14px;
  color: var(--text-primary);
}

.button-pw {
  width: 100%;
  padding: 12px;
  margin: 0;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: 14px;
  transition: all 0.2s ease;
  box-sizing: border-box;
}

.button-pw:hover {
  border-color: var(--border-color-focus);
}

.button-pw:focus {
  outline: none;
  border-color: var(--border-color-focus);
  box-shadow: 0 0 0 2px rgba(26, 186, 42, 0.1);
}

.button-sb {
  width: 100%;
  margin: 0;
  padding: 8px 12px;
  background-color: var(--bg-button);
  color: var(--text-inverse);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s ease;
  box-sizing: border-box;
}

.button-sb:hover {
  background-color: var(--bg-button-hover);
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.button-sb:active {
  transform: translateY(0);
}