/* ============================================
   马路侦探 · 共享样式表
   暗色科幻风 · 霓虹高光 · 毛玻璃卡片
   ============================================ */

/* --- CSS 自定义属性（主题色系统）--- */
:root {
  --color-bg: #0a0e27;
  --color-bg-card: rgba(20, 28, 58, 0.75);
  --color-primary: #00e5ff;
  --color-secondary: #ffeb3b;
  --color-accent: #ff6ec7;
  --color-success: #00e676;
  --color-danger: #ff5252;
  --color-warning: #ffab00;
  --color-text: #e0e0ff;
  --color-text-dim: #8890b0;
  --color-border: rgba(0, 229, 255, 0.25);
  --color-glow: rgba(0, 229, 255, 0.15);

  --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-card: 0 4px 30px rgba(0, 0, 0, 0.4);
  --transition-fast: 0.2s ease;
  --transition-med: 0.35s ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-stack);
  background: linear-gradient(145deg, #0a0e27 0%, #141c3a 50%, #0f1530 100%);
  color: var(--color-text);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* --- 渐变标题 --- */
.gradient-title {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 800;
  letter-spacing: 0.02em;
}

/* --- 导航栏 --- */
.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: rgba(10, 14, 39, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-bar .logo {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--color-text-dim);
  text-decoration: none;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  transition: var(--transition-fast);
  border: 1px solid transparent;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-primary);
  background: var(--color-glow);
  border-color: var(--color-border);
}

/* --- 毛玻璃卡片 --- */
.glass-card {
  background: var(--color-bg-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-med), box-shadow var(--transition-med);
}

.glass-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 40px rgba(0, 229, 255, 0.12);
}

/* --- 按钮系统 --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 22px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-stack);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast),
    background var(--transition-fast);
  text-decoration: none;
}

.btn:active {
  transform: scale(0.96);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), #00b8d4);
  color: #0a0e27;
  box-shadow: 0 0 20px rgba(0, 229, 255, 0.25);
}

.btn-primary:hover {
  box-shadow: 0 0 32px rgba(0, 229, 255, 0.45);
  transform: translateY(-2px);
}

.btn-secondary {
  background: rgba(0, 229, 255, 0.1);
  color: var(--color-primary);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: rgba(0, 229, 255, 0.2);
}

.btn-success {
  background: linear-gradient(135deg, var(--color-success), #00c853);
  color: #0a0e27;
}

.btn-danger {
  background: linear-gradient(135deg, var(--color-danger), #d50000);
  color: #fff;
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none !important;
}

/* --- 容器 / 布局 --- */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 20px;
}

.page-header {
  text-align: center;
  padding: 32px 0 24px;
}

.page-header h1 {
  font-size: 2.2rem;
  margin-bottom: 8px;
}

.page-header p {
  color: var(--color-text-dim);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto;
}

/* --- 卡片网格 --- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  padding: 20px 0;
}

/* --- 徽章 / 标签 --- */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-primary {
  background: rgba(0, 229, 255, 0.15);
  color: var(--color-primary);
}

.badge-gold {
  background: rgba(255, 235, 59, 0.15);
  color: var(--color-secondary);
}

/* --- 进度条 --- */
.progress-bar {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: 10px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-success));
  transition: width 0.5s ease;
}

/* --- 脉冲动画（用于重要按钮/提示）--- */
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 12px var(--color-glow); }
  50% { box-shadow: 0 0 28px rgba(0, 229, 255, 0.35); }
}

.pulse {
  animation: pulse-glow 2s infinite;
}

/* --- 渐入动画 --- */
@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fade-in-up 0.5s ease forwards;
}

/* --- 响应式 --- */
@media (max-width: 768px) {
  .nav-bar {
    flex-direction: column;
    gap: 10px;
    padding: 12px 16px;
  }

  .nav-links {
    width: 100%;
    justify-content: center;
  }

  .page-header h1 {
    font-size: 1.6rem;
  }

  .card-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .container {
    padding: 16px 14px;
  }
}

@media (max-width: 480px) {
  html { font-size: 14px; }
  .nav-links a { font-size: 0.8rem; padding: 5px 10px; }
}