/* ============================================
   防诈骗模拟器 (Scam Buster) — 共享样式
   暗色赛博朋克风 · 霓虹渐变 · 微动效
   ============================================ */

/* --- CSS 自定义属性（主题色） --- */
:root {
  --color-bg: #0a0a1a;
  --color-bg-card: #14142a;
  --color-bg-card-hover: #1c1c3a;
  --color-primary: #00f0ff;
  --color-primary-glow: rgba(0, 240, 255, 0.3);
  --color-accent: #ff2d78;
  --color-accent-glow: rgba(255, 45, 120, 0.3);
  --color-success: #00ff88;
  --color-warning: #ffaa00;
  --color-danger: #ff3355;
  --color-text: #e0e0f0;
  --color-text-dim: #8888aa;
  --color-border: rgba(0, 240, 255, 0.15);
  --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 20px var(--color-primary-glow);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-stack);
  background: linear-gradient(135deg, #0a0a1a 0%, #0d0d2b 50%, #0a0a1a 100%);
  color: var(--color-text);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* --- 渐变标题 --- */
.gradient-title {
  font-size: 2.2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.5rem;
}

/* --- 布局容器 --- */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 1.5rem 1rem;
}

/* --- 导航栏 --- */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  background: rgba(10, 10, 26, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar .logo {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.navbar .logo:hover {
  text-shadow: 0 0 12px var(--color-primary-glow);
}

.navbar .nav-links {
  display: flex;
  gap: 1rem;
  list-style: none;
}

.navbar .nav-links a {
  color: var(--color-text-dim);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 0.3rem 0.6rem;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
}

.navbar .nav-links a:hover {
  color: var(--color-primary);
  background: rgba(0, 240, 255, 0.08);
}

/* --- 卡片网格 --- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.2rem;
  margin: 1.5rem 0;
}

/* --- 卡片 --- */
.card {
  display: block;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-decoration: none;
  color: var(--color-text);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition),
    border-color var(--transition), background var(--transition);
  cursor: pointer;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
  border-color: var(--color-primary);
  background: var(--color-bg-card-hover);
}

.card:active {
  transform: translateY(-1px);
}

.card .card-icon {
  font-size: 2rem;
  margin-bottom: 0.6rem;
}

.card .card-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
  color: var(--color-primary);
}

.card .card-desc {
  font-size: 0.85rem;
  color: var(--color-text-dim);
  line-height: 1.5;
}

/* --- 按钮 --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.7rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font-stack);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition),
    background var(--transition);
  text-decoration: none;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), #0099cc);
  color: #0a0a1a;
  box-shadow: 0 0 12px var(--color-primary-glow);
}

.btn-primary:hover {
  box-shadow: 0 0 24px var(--color-primary-glow);
  transform: translateY(-2px);
}

.btn-accent {
  background: linear-gradient(135deg, var(--color-accent), #cc0055);
  color: #fff;
  box-shadow: 0 0 12px var(--color-accent-glow);
}

.btn-accent:hover {
  box-shadow: 0 0 24px var(--color-accent-glow);
  transform: translateY(-2px);
}

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

.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: rgba(0, 240, 255, 0.06);
}

.btn-block {
  width: 100%;
}

/* --- 页面标题区 --- */
.page-header {
  text-align: center;
  padding: 2rem 0 1rem;
}

.page-header p {
  color: var(--color-text-dim);
  font-size: 1rem;
  max-width: 600px;
  margin: 0 auto;
}

/* --- 返回首页链接 --- */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--color-text-dim);
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 1rem;
  transition: color var(--transition);
}

.back-link:hover {
  color: var(--color-primary);
}

/* --- 碎屏效果 (被骗后) --- */
.screen-crack-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 999;
  background: radial-gradient(
    ellipse at 50% 50%,
    transparent 40%,
    rgba(255, 0, 0, 0.15) 70%,
    rgba(0, 0, 0, 0.5) 100%
  );
  opacity: 0;
  transition: opacity 0.5s ease;
}

.screen-crack-overlay.active {
  opacity: 1;
}

.screen-crack-overlay .crack-lines {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* --- 金额计数动画 --- */
.money-counter {
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-success);
  text-shadow: 0 0 30px rgba(0, 255, 136, 0.4);
  text-align: center;
  padding: 1rem 0;
}

/* --- 评级徽章 --- */
.badge {
  display: inline-block;
  padding: 0.3rem 1rem;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1.2rem;
}

.badge-s {
  background: linear-gradient(135deg, #ffd700, #ffaa00);
  color: #1a1a00;
  box-shadow: 0 0 16px rgba(255, 215, 0, 0.4);
}

.badge-a {
  background: linear-gradient(135deg, var(--color-success), #00cc66);
  color: #003311;
  box-shadow: 0 0 16px rgba(0, 255, 136, 0.3);
}

.badge-b {
  background: linear-gradient(135deg, var(--color-primary), #0099cc);
  color: #001a1a;
  box-shadow: 0 0 12px var(--color-primary-glow);
}

.badge-c {
  background: linear-gradient(135deg, var(--color-warning), #cc8800);
  color: #1a1100;
  box-shadow: 0 0 12px rgba(255, 170, 0, 0.3);
}

/* --- 选择选项 (游戏用) --- */
.option-list {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  margin: 1.2rem 0;
}

.option-btn {
  display: block;
  width: 100%;
  text-align: left;
  padding: 1rem 1.2rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text);
  font-size: 0.95rem;
  font-family: var(--font-stack);
  cursor: pointer;
  transition: all var(--transition);
}

.option-btn:hover {
  border-color: var(--color-primary);
  background: var(--color-bg-card-hover);
  transform: translateX(4px);
}

.option-btn.correct {
  border-color: var(--color-success);
  background: rgba(0, 255, 136, 0.1);
  color: var(--color-success);
}

.option-btn.wrong {
  border-color: var(--color-danger);
  background: rgba(255, 51, 85, 0.1);
  color: var(--color-danger);
}

.option-btn:disabled {
  cursor: not-allowed;
  opacity: 0.7;
}

/* --- 解析面板 --- */
.explanation-box {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.2rem;
  margin: 1rem 0;
  border-left: 3px solid var(--color-primary);
}

.explanation-box h3 {
  color: var(--color-primary);
  margin-bottom: 0.4rem;
  font-size: 1rem;
}

.explanation-box p {
  color: var(--color-text-dim);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* --- 统计面板 --- */
.stats-panel {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}

.stat-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem;
  text-align: center;
}

.stat-item .stat-value {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--color-primary);
}

.stat-item .stat-label {
  font-size: 0.8rem;
  color: var(--color-text-dim);
  margin-top: 0.2rem;
}

/* --- 进度条 --- */
.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--color-bg-card);
  border-radius: 50px;
  overflow: hidden;
  margin: 1rem 0;
}

.progress-bar .progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: 50px;
  transition: width 0.5s ease;
}

/* --- 模态框 --- */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.modal-box {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  max-width: 420px;
  width: 90%;
  text-align: center;
  box-shadow: 0 0 40px rgba(0, 0, 0, 0.6);
}

.modal-box h2 {
  margin-bottom: 0.8rem;
}

.modal-box p {
  color: var(--color-text-dim);
  margin-bottom: 1.2rem;
}

/* --- Toast 提示 --- */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.8rem 1.5rem;
  color: var(--color-text);
  font-size: 0.9rem;
  box-shadow: var(--shadow-card);
  z-index: 300;
  opacity: 0;
  transition: all 0.4s ease;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* --- 连胜徽章 --- */
.streak-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: linear-gradient(135deg, #ffd700, #ff8800);
  color: #1a0a00;
  padding: 0.2rem 0.8rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 700;
  box-shadow: 0 0 12px rgba(255, 215, 0, 0.4);
  animation: streak-glow 1s ease-in-out infinite alternate;
}

@keyframes streak-glow {
  from { box-shadow: 0 0 8px rgba(255, 215, 0, 0.3); }
  to   { box-shadow: 0 0 20px rgba(255, 215, 0, 0.6); }
}

/* --- 卡片发光边框（悬停） --- */
.card-glow {
  position: relative;
  overflow: hidden;
}

.card-glow::before {
  content: '';
  position: absolute;
  top: -2px; left: -2px; right: -2px; bottom: -2px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent), var(--color-primary));
  background-size: 300% 300%;
  border-radius: calc(var(--radius) + 2px);
  z-index: -1;
  opacity: 0;
  transition: opacity var(--transition);
  animation: glow-spin 3s linear infinite;
}

.card-glow:hover::before {
  opacity: 1;
}

@keyframes glow-spin {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* --- 按钮点击波纹 --- */
.btn-ripple {
  position: relative;
  overflow: hidden;
}

.btn-ripple::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  width: 0; height: 0;
  background: rgba(255,255,255,0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.5s ease, height 0.5s ease, opacity 0.5s ease;
  opacity: 0;
}

.btn-ripple:active::after {
  width: 300px;
  height: 300px;
  opacity: 1;
  transition: 0s;
}

/* --- 倒计时（旁观者模式） --- */
.timer-bar {
  width: 100%;
  height: 16px;
  background: var(--color-bg-card);
  border-radius: 50px;
  overflow: hidden;
  margin: 0.5rem 0 1rem;
  position: relative;
  border: 1px solid var(--color-border);
}

.timer-bar .timer-fill {
  height: 100%;
  border-radius: 50px;
  transition: width 0.3s linear, background 0.3s ease;
  background: linear-gradient(90deg, var(--color-primary), #66ffff);
}

.timer-bar .timer-fill.warning {
  background: linear-gradient(90deg, var(--color-warning), #ffcc00);
}

.timer-bar .timer-fill.danger {
  background: linear-gradient(90deg, var(--color-danger), #ff6688);
  animation: pulse-bg 0.4s infinite;
}

@keyframes pulse-bg {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.timer-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 0.8rem;
  font-weight: 800;
  color: #fff;
  text-shadow: 0 0 6px rgba(0,0,0,0.9);
  letter-spacing: 0.5px;
}

/* --- 按钮点击动效 --- */
.btn:active {
  transform: scale(0.95);
}

/* --- 连胜徽章 --- */
.streak-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.3rem 0.8rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 700;
  background: linear-gradient(135deg, #ffd700, #ffaa00);
  color: #1a1a00;
  box-shadow: 0 0 12px rgba(255, 215, 0, 0.3);
  animation: streak-glow 1.5s ease-in-out infinite alternate;
}

@keyframes streak-glow {
  from { box-shadow: 0 0 8px rgba(255, 215, 0, 0.3); }
  to { box-shadow: 0 0 20px rgba(255, 215, 0, 0.6); }
}

/* --- 卡片发光边框（首页战绩卡片） --- */
.card-glow {
  border-color: var(--color-primary) !important;
  box-shadow: 0 0 20px var(--color-primary-glow), var(--shadow-card) !important;
}

/* --- 选项按钮悬停增强 --- */
.option-btn:hover {
  border-color: var(--color-primary);
  background: var(--color-bg-card-hover);
  transform: translateX(6px);
  box-shadow: 0 0 12px var(--color-primary-glow);
}

/* --- 模态框入场动画 --- */
.modal-overlay.active .modal-box {
  animation: modal-pop 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes modal-pop {
  0% { transform: scale(0.8); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

/* --- 撒花 Canvas 容器（由 JS 动态创建） --- */
.confetti-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9999;
}

/* --- 响应式 --- */
@media (max-width: 600px) {
  .gradient-title {
    font-size: 1.6rem;
  }

  .container {
    padding: 1rem 0.8rem;
  }

  .card-grid {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }

  .navbar {
    padding: 0.7rem 1rem;
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .navbar .nav-links {
    gap: 0.4rem;
    flex-wrap: wrap;
  }

  .navbar .nav-links a {
    font-size: 0.8rem;
    padding: 0.2rem 0.5rem;
  }

  .stats-panel {
    grid-template-columns: repeat(2, 1fr);
  }

  .money-counter {
    font-size: 2rem;
  }
}