/* 清玖邀请激励系统样式 - 重构版 Glassmorphism & Modern UI */

:root {
  /* 颜色变量 */
  --bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
  --primary-color: #8b5cf6;
  --primary-hover: #7c3aed;
  --success-color: #10b981;
  --success-hover: #059669;
  --danger-color: #ef4444;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;

  /* 毛玻璃面板变量 */
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);

  /* 动画变量 */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg-gradient);
  background-attachment: fixed;
  min-height: 100vh;
  color: var(--text-main);
  line-height: 1.6;
}

/* 动态背景装饰球 */
body::before,
body::after {
  content: '';
  position: fixed;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  z-index: -1;
  filter: blur(80px);
  opacity: 0.5;
  animation: float 10s infinite ease-in-out alternate;
}

body::before {
  background: #8b5cf6;
  top: -100px;
  left: -100px;
}

body::after {
  background: #3b82f6;
  bottom: -100px;
  right: -100px;
  animation-delay: -5s;
}

@keyframes float {
  0% {
    transform: translate(0, 0);
  }

  100% {
    transform: translate(30px, 50px);
  }
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
  animation: slideUpFade 0.6s ease-out;
}

@keyframes slideUpFade {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 头部 */
.header {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  padding: 20px 0;
  box-shadow: var(--glass-shadow);
  margin-bottom: 40px;
  border-radius: 16px;
  position: sticky;
  top: 20px;
  z-index: 100;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.logo {
  font-size: 26px;
  font-weight: 800;
  background: linear-gradient(to right, #a855f7, #3b82f6);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: 1px;
}

.nav {
  display: flex;
  gap: 15px;
}

.nav a {
  color: var(--text-muted);
  text-decoration: none;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 500;
  transition: var(--transition-normal);
}

.nav a:hover,
.nav a.active {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-main);
  transform: translateY(-2px);
}

/* 购买套餐按钮特殊样式 */
.btn-purchase-nav {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%) !important;
  color: #fff !important;
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.btn-purchase-nav:hover {
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.5);
  transform: translateY(-3px) scale(1.02);
}

/* 卡片 (毛玻璃风格) */
.card {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 40px;
  box-shadow: var(--glass-shadow);
  margin-bottom: 30px;
  transition: var(--transition-normal);
}

.card:hover {
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.card-title {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 25px;
  color: var(--text-main);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* 统计卡片 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 25px;
  margin-bottom: 40px;
}

.stat-card {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.2) 0%, rgba(59, 130, 246, 0.2) 100%);
  border: 1px solid rgba(139, 92, 246, 0.3);
  padding: 30px;
  border-radius: 16px;
  box-shadow: inset 0 0 20px rgba(139, 92, 246, 0.1);
  transition: var(--transition-normal);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.stat-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.1), transparent);
  transform: skewX(-20deg);
  transition: 0.5s;
}

.stat-card:hover::after {
  left: 150%;
}

.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(139, 92, 246, 0.2);
  border-color: rgba(139, 92, 246, 0.5);
}

.stat-label {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.stat-value {
  font-size: 42px;
  font-weight: 800;
  background: linear-gradient(135deg, #fff 0%, #cbd5e1 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* 按钮 */
.btn {
  padding: 14px 35px;
  border: none;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-normal);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: "";
  position: absolute;
  background: rgba(255, 255, 255, 0.2);
  width: 100%;
  height: 100%;
  top: 0;
  left: -100%;
  transform: skewX(-15deg);
  transition: 0.4s ease;
}

.btn:hover::after {
  left: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color) 0%, #3b82f6 100%);
  color: white;
  box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(139, 92, 246, 0.5);
}

.btn-success {
  background: linear-gradient(135deg, var(--success-color) 0%, #059669 100%);
  color: white;
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(16, 185, 129, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: white;
}

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

/* 表单 */
.form-group {
  margin-bottom: 25px;
}

.form-label {
  display: block;
  margin-bottom: 10px;
  font-weight: 500;
  color: var(--text-muted);
}

.form-input {
  width: 100%;
  padding: 15px 20px;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  font-size: 16px;
  color: var(--text-main);
  transition: var(--transition-normal);
}

.form-input::placeholder {
  color: rgba(255, 255, 255, 0.3);
}

.form-input:focus {
  outline: none;
  border-color: var(--primary-color);
  background: rgba(0, 0, 0, 0.3);
  box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.1);
}

/* 邀请码显示 */
.invite-code-box {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(139, 92, 246, 0.3);
  padding: 30px;
  border-radius: 16px;
  text-align: center;
  margin: 30px 0;
  position: relative;
}

.invite-code-box::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(45deg, #8b5cf6, #3b82f6, #10b981);
  z-index: -1;
  border-radius: 18px;
  opacity: 0.3;
  filter: blur(10px);
}

.invite-code {
  font-size: 48px;
  font-weight: 900;
  background: linear-gradient(to right, #a855f7, #60a5fa);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: 6px;
  margin: 15px 0;
  text-shadow: 0px 4px 10px rgba(0, 0, 0, 0.5);
}

.invite-url {
  color: var(--text-muted);
  font-size: 15px;
  word-break: break-all;
  background: rgba(0, 0, 0, 0.3);
  padding: 10px 20px;
  border-radius: 8px;
  display: inline-block;
  margin-bottom: 20px;
}

/* 奖励规则 */
.reward-rules {
  display: grid;
  gap: 20px;
}

.rule-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  border-left: 5px solid var(--primary-color);
  transition: var(--transition-normal);
}

.rule-item:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateX(5px);
}

.rule-count {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
}

.rule-reward {
  text-align: right;
}

.rule-tokens {
  font-size: 18px;
  font-weight: 700;
  color: var(--success-color);
}

.rule-discount {
  color: var(--danger-color);
  font-size: 15px;
  margin-top: 5px;
}

/* 卡密列表 */
.card-list {
  display: grid;
  gap: 15px;
}

.card-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  transition: var(--transition-normal);
}

.card-item:hover {
  border-color: rgba(255, 255, 255, 0.3);
  background: rgba(0, 0, 0, 0.3);
}

.card-code {
  font-family: 'Fira Code', 'Courier New', monospace;
  font-size: 18px;
  font-weight: bold;
  color: #fff;
  letter-spacing: 1px;
}

.card-status {
  padding: 6px 16px;
  border-radius: 30px;
  font-size: 13px;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.status-unused {
  background: rgba(16, 185, 129, 0.2);
  color: var(--success-color);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-used {
  background: rgba(239, 68, 68, 0.2);
  color: var(--danger-color);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

/* 响应式 */
@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .header {
    margin-bottom: 20px;
    padding: 15px 0;
    border-radius: 0 0 16px 16px;
    position: relative;
    top: 0;
  }

  .header-content {
    justify-content: center;
  }

  .logo {
    font-size: 22px;
  }

  .nav {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid var(--glass-border);
    flex-direction: row;
    justify-content: space-around;
    align-items: center;
    padding: 10px 5px;
    padding-bottom: max(10px, env(safe-area-inset-bottom, 10px));
    z-index: 1000;
  }

  .nav a {
    font-size: 13px;
    padding: 6px 10px;
    text-align: center;
    border-radius: 8px;
    flex: 1;
  }

  .btn-purchase-nav {
    background: transparent !important;
    box-shadow: none !important;
    color: var(--success-color) !important;
  }

  .nav a.active,
  .btn-purchase-nav:hover {
    background: rgba(255, 255, 255, 0.1) !important;
    transform: none;
  }

  .container {
    padding: 15px;
    padding-bottom: 90px;
  }

  .card {
    padding: 25px 20px;
  }

  .card-title {
    font-size: 22px;
    margin-bottom: 20px;
  }

  .stat-card {
    padding: 20px;
  }

  .stat-value {
    font-size: 32px;
  }

  .rule-item,
  .card-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 15px;
  }

  .rule-reward {
    text-align: left;
  }

  .invite-code {
    font-size: 36px;
    letter-spacing: 4px;
  }
}

/* 加载动画 */
.loading {
  text-align: center;
  padding: 50px;
}

.loading-spinner {
  border: 4px solid rgba(255, 255, 255, 0.1);
  border-top: 4px solid var(--primary-color);
  border-radius: 50%;
  width: 50px;
  height: 50px;
  animation: spin 1s cubic-bezier(0.5, 0, 0.5, 1) infinite;
  margin: 0 auto;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

/* 提示信息 */
.alert {
  padding: 16px 20px;
  border-radius: 12px;
  margin-bottom: 25px;
  backdrop-filter: blur(10px);
}

.alert-success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--success-color);
  border-left: 5px solid var(--success-color);
}

.alert-error {
  background: rgba(239, 68, 68, 0.1);
  color: var(--danger-color);
  border-left: 5px solid var(--danger-color);
}

.alert-info {
  background: rgba(59, 130, 246, 0.1);
  color: #60a5fa;
  border-left: 5px solid #3b82f6;
}

/* 工具类 */
.text-center {
  text-align: center;
}

.mt-4 {
  margin-top: 2rem;
}

.mb-4 {
  margin-bottom: 2rem;
}