/* ============================================
   灵犀塔罗 - 主样式表
   暗黑主题 · 神秘优雅 · GPU 加速动画
   ============================================ */

/* --- CSS 变量 --- */
:root {
  /* 色彩方案 */
  --color-bg-primary: #0a0a1a;
  --color-bg-secondary: #12122a;
  --color-bg-card: #1a1a3e;
  --color-bg-card-hover: #222255;
  --color-bg-input: #151530;
  --color-border: #2a2a5a;
  --color-border-focus: #6c5ce7;

  /* 文字色 */
  --color-text-primary: #e8e8f0;
  --color-text-secondary: #a0a0c0;
  --color-text-muted: #606080;
  --color-text-accent: #c9a9ff;

  /* 强调色 */
  --color-accent: #7c6ff7;
  --color-accent-glow: rgba(124, 111, 247, 0.3);
  --color-gold: #d4a843;
  --color-gold-glow: rgba(212, 168, 67, 0.4);

  /* 状态色 */
  --color-success: #4ecdc4;
  --color-warning: #f9ca24;
  --color-error: #fc5c65;

  /* 字体 */
  --font-primary: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", sans-serif;
  --font-mono: "Cascadia Code", "Fira Code", "Consolas", monospace;

  /* 间距 */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;

  /* 圆角 */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  /* 阴影 */
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 30px var(--color-accent-glow);
}

/* --- 全局重置 --- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  height: 100%;
  overflow: hidden;
}

body {
  font-family: var(--font-primary);
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --- 粒子背景 --- */
#particles-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(124, 111, 247, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 80%, rgba(212, 168, 67, 0.05) 0%, transparent 50%);
}

.particle {
  position: absolute;
  border-radius: 50%;
  background: var(--color-gold);
  animation: float-up linear infinite;
  opacity: 0;
}

/* --- 主布局 --- */
.app-container {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  height: 100vh;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* --- 头部 --- */
#app-header {
  text-align: center;
  padding: var(--spacing-lg) 0;
  flex-shrink: 0;
}

.app-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-text-accent);
  text-shadow: 0 0 20px var(--color-accent-glow);
  margin-bottom: var(--spacing-xs);
}

.title-icon {
  margin-right: var(--spacing-sm);
}

.app-subtitle {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  letter-spacing: 2px;
}

.header-actions {
  position: absolute;
  top: var(--spacing-lg);
  right: var(--spacing-md);
  display: flex;
  gap: var(--spacing-sm);
}

/* --- 主内容区 --- */
#main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow-y: auto;
  padding-bottom: var(--spacing-xl);
}

/* --- 面板卡片 --- */
.card-panel {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  width: 100%;
  max-width: 600px;
  box-shadow: var(--shadow-card);
  transition: all 0.3s ease;
}

/* --- 输入区域 --- */
.input-group {
  margin-bottom: var(--spacing-lg);
}

.input-label {
  display: block;
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-sm);
}

.question-input {
  width: 100%;
  background: var(--color-bg-input);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-family: var(--font-primary);
  font-size: 0.95rem;
  padding: var(--spacing-md);
  resize: none;
  outline: none;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.question-input:focus {
  border-color: var(--color-border-focus);
  box-shadow: 0 0 15px var(--color-accent-glow);
}

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

.input-footer {
  display: flex;
  justify-content: flex-end;
  margin-top: var(--spacing-xs);
}

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

.char-count.warn {
  color: var(--color-warning);
}

/* --- 牌阵选择 --- */
.spread-selector {
  margin-bottom: var(--spacing-xl);
}

.spread-label {
  display: block;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-sm);
}

.spread-options {
  display: flex;
  gap: var(--spacing-md);
}

.spread-option {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--spacing-md);
  background: var(--color-bg-input);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.3s ease;
}

.spread-option:hover {
  border-color: var(--color-accent);
  background: var(--color-bg-card-hover);
}

.spread-option.selected {
  border-color: var(--color-accent);
  background: var(--color-bg-card-hover);
  box-shadow: 0 0 15px var(--color-accent-glow);
}

.spread-option input[type="radio"] {
  display: none;
}

.spread-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

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

/* --- 抽牌按钮 --- */
.btn-draw {
  display: block;
  width: 100%;
  padding: var(--spacing-md);
  background: linear-gradient(135deg, var(--color-accent), #a29bfe);
  border: none;
  border-radius: var(--radius-xl);
  color: #fff;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px var(--color-accent-glow);
  position: relative;
  overflow: hidden;
}

.btn-draw:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px var(--color-accent-glow);
}

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

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

/* --- 洗牌区域 --- */
.shuffle-container {
  text-align: center;
  padding: var(--spacing-2xl) 0;
}

.shuffle-cards {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.shuffle-text {
  color: var(--color-text-secondary);
  font-size: 1.1rem;
  letter-spacing: 2px;
}

/* --- 翻牌区域 --- */
.cards-container {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
  padding: var(--spacing-md) 0;
}

/* --- 解读区域 --- */
.reading-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

.reading-header h2 {
  font-size: 1.2rem;
  color: var(--color-text-accent);
}

.reading-status {
  font-size: 0.85rem;
  color: var(--color-success);
  animation: pulse 2s ease-in-out infinite;
}

.reading-content {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--color-text-primary);
  max-height: 400px;
  overflow-y: auto;
  padding: var(--spacing-md);
  background: var(--color-bg-input);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
}

/* Markdown 样式 */
.reading-content h2 {
  color: var(--color-text-accent);
  font-size: 1.1rem;
  margin: var(--spacing-md) 0 var(--spacing-sm);
}

.reading-content h3 {
  color: var(--color-gold);
  font-size: 1rem;
  margin: var(--spacing-md) 0 var(--spacing-sm);
}

.reading-content p {
  margin-bottom: var(--spacing-sm);
}

.reading-content strong {
  color: var(--color-gold);
}

.reading-content ul,
.reading-content ol {
  margin: var(--spacing-sm) 0;
  padding-left: var(--spacing-lg);
}

.reading-actions {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
}

/* --- 错误区域 --- */
.error-container {
  text-align: center;
  padding: var(--spacing-xl) 0;
}

.error-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

.error-title {
  font-size: 1.3rem;
  color: var(--color-error);
  margin-bottom: var(--spacing-sm);
}

.error-message {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
  font-size: 0.95rem;
}

/* --- 按钮通用 --- */
.action-btn {
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

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

.action-btn.primary {
  background: var(--color-accent);
  border-color: transparent;
  color: #fff;
}

.action-btn.primary:hover {
  background: #8f82f8;
}

.icon-btn {
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.icon-btn:hover {
  color: var(--color-text-primary);
  border-color: var(--color-accent);
}

/* --- 加载遮罩 --- */
.loading-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 10, 26, 0.85);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 10;
  border-radius: var(--radius-lg);
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-bottom: var(--spacing-md);
}

.loading-text {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

/* --- 侧面板 --- */
.side-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: 340px;
  height: 100vh;
  background: var(--color-bg-secondary);
  border-left: 1px solid var(--color-border);
  z-index: 20;
  display: flex;
  flex-direction: column;
  box-shadow: -5px 0 25px rgba(0, 0, 0, 0.3);
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.panel-header h2 {
  font-size: 1.1rem;
  color: var(--color-text-accent);
}

.history-list {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-md);
}

.empty-hint {
  text-align: center;
  color: var(--color-text-muted);
  padding: var(--spacing-xl) 0;
}

.clear-btn {
  margin: var(--spacing-md);
  padding: var(--spacing-sm);
  background: transparent;
  border: 1px solid var(--color-error);
  border-radius: var(--radius-sm);
  color: var(--color-error);
  cursor: pointer;
  transition: all 0.3s ease;
}

.clear-btn:hover {
  background: rgba(252, 92, 101, 0.1);
}

/* --- 设置面板 --- */
.settings-content {
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.setting-item {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.setting-item label {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.setting-select,
.setting-input {
  background: var(--color-bg-input);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  padding: var(--spacing-sm);
  font-size: 0.9rem;
  outline: none;
}

.setting-select:focus,
.setting-input:focus {
  border-color: var(--color-accent);
}

.health-status {
  font-size: 0.85rem;
  margin-top: var(--spacing-xs);
}

.health-status.ok {
  color: var(--color-success);
}

.health-status.error {
  color: var(--color-error);
}

/* --- 遮罩 --- */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 15;
}

/* --- 通用工具类 --- */
.hidden {
  display: none !important;
}

/* --- 滚动条美化 --- */
::-webkit-scrollbar {
  width: 6px;
}

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

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

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

/* --- 历史记录项 --- */
.history-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
  cursor: pointer;
  transition: all 0.3s ease;
}

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

.history-item .history-question {
  font-size: 0.9rem;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

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

/* --- 响应式 --- */
@media (max-width: 500px) {
  .spread-options {
    flex-direction: column;
  }

  .card-panel {
    padding: var(--spacing-md);
  }

  .app-title {
    font-size: 1.5rem;
  }

  .side-panel {
    width: 100%;
  }
}

/* --- 牌面卡片组件 --- */
.card-display {
  width: 140px;
  height: 210px;
  perspective: 800px;
  cursor: pointer;
  flex-shrink: 0;
}

.card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  transform-style: preserve-3d;
}

.card-display.revealed .card-inner {
  transform: rotateY(180deg);
}

.card-face {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  border-radius: var(--radius-md);
  border: 2px solid var(--color-gold);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 20px var(--color-gold-glow);
}

.card-back {
  background: linear-gradient(135deg, #1a1a3e, #2a1a4e);
  background-image: repeating-linear-gradient(
      45deg,
      transparent,
      transparent 5px,
      rgba(212, 168, 67, 0.05) 5px,
      rgba(212, 168, 67, 0.05) 10px
    ),
    linear-gradient(135deg, #1a1a3e, #2a1a4e);
}

.card-back-symbol {
  font-size: 3rem;
}

.card-front {
  background: linear-gradient(135deg, #1e1e46, #2d1f5e);
  transform: rotateY(180deg);
  padding: var(--spacing-md);
  text-align: center;
  overflow-y: auto;
}

.card-front .card-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-gold);
  margin-bottom: var(--spacing-xs);
}

.card-front .card-name-en {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-xs);
}

.card-front .card-img {
  width: 100%;
  max-width: 140px;
  height: auto;
  border-radius: 6px;
  margin-bottom: var(--spacing-sm);
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.card-front .card-orientation {
  font-size: 0.85rem;
  color: var(--color-text-accent);
  margin-bottom: var(--spacing-sm);
}

.card-front .card-keywords {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  line-height: 1.4;
}

.card-position {
  text-align: center;
  color: var(--color-text-secondary);
  font-size: 0.85rem;
  margin-top: var(--spacing-sm);
}