/* ========================================
   全局公共样式 - 世界杯竞猜 Mini App
   ======================================== */

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

html {
  font-size: 16px;
  -webkit-tap-highlight-color: transparent;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC',
    'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial,
    sans-serif;
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
input, button, textarea { font-family: inherit; border: none; outline: none; background: none; }
button { cursor: pointer; }

/* ---------- 页面容器 ---------- */
.page {
  display: none;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  min-height: 100vh;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.page.active {
  display: block;
  opacity: 1;
  animation: fadeIn 0.3s ease forwards;
}

.page-content {
  padding: var(--spacing-md);
  padding-bottom: calc(var(--nav-height) + var(--safe-bottom) + var(--spacing-lg));
  max-width: 480px;
  margin: 0 auto;
}

/* 无底部导航时的内容区域 */
.page-content.no-nav {
  padding-bottom: var(--spacing-lg);
}

/* ---------- 页面标题栏 ---------- */
.page-header {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  height: 56px;
  padding: 0 var(--spacing-md);
  background: var(--bg-primary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.page-header .back-btn {
  position: absolute;
  left: var(--spacing-md);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 18px;
  transition: background 0.2s;
}

.page-header .back-btn:active {
  background: var(--bg-tertiary);
}

.page-header .header-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
}

.page-header .header-action {
  position: absolute;
  right: var(--spacing-md);
  color: var(--accent-blue);
  font-size: 14px;
}

/* ---------- 底部导航栏 ---------- */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: calc(var(--nav-height) + var(--safe-bottom));
  padding-bottom: var(--safe-bottom);
  display: flex;
  align-items: center;
  justify-content: space-around;
  background: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  z-index: 1000;
  transition: transform 0.3s ease;
}

.bottom-nav.hidden {
  transform: translateY(100%);
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  flex: 1;
  height: 100%;
  color: var(--text-tertiary);
  font-size: 10px;
  transition: color 0.2s;
  -webkit-tap-highlight-color: transparent;
  cursor: pointer;
}

.nav-item .nav-icon {
  font-size: 22px;
  line-height: 1;
  margin-bottom: 2px;
  transition: transform 0.2s;
}

.nav-item .nav-label {
  font-weight: 500;
}

.nav-item.active {
  color: var(--accent-blue);
}

.nav-item.active .nav-icon {
  transform: scale(1.1);
}

.nav-item.active .nav-label {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 600;
}

/* ---------- 通用按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  transition: all 0.2s ease;
  white-space: nowrap;
  user-select: none;
  -webkit-user-select: none;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: var(--shadow-button);
}

.btn-primary:active {
  transform: scale(0.97);
  opacity: 0.9;
}

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

.btn-secondary:active {
  background: rgba(36, 42, 61, 0.8);
}

.btn-disabled,
.btn:disabled {
  background: var(--bg-tertiary) !important;
  color: var(--text-tertiary) !important;
  box-shadow: none !important;
  pointer-events: none;
  opacity: 0.6;
}

.btn-block {
  display: flex;
  width: 100%;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 13px;
  border-radius: var(--radius-sm);
}

/* ---------- 通用卡片 ---------- */
.card {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(255, 255, 255, 0.04);
  transition: background 0.2s;
}

.card:active {
  background: rgba(26, 31, 46, 0.85);
}

.card + .card {
  margin-top: var(--spacing-sm);
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

/* ---------- 通用列表 ---------- */
.list-group {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  transition: background 0.15s;
}

.list-item:last-child {
  border-bottom: none;
}

.list-item:active {
  background: var(--bg-tertiary);
}

/* ---------- 通用表单 ---------- */
.form-input {
  width: 100%;
  height: 48px;
  padding: 0 var(--spacing-md);
  background: var(--bg-tertiary);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 15px;
  transition: border-color 0.2s;
}

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

.form-input:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 2px rgba(0, 212, 255, 0.15);
}

.form-label {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

/* ---------- 快捷金额按钮 ---------- */
.quick-amount-group {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-sm);
}

.quick-amount-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: all 0.2s;
}

.quick-amount-btn.selected,
.quick-amount-btn:active {
  background: rgba(0, 212, 255, 0.12);
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

/* ---------- 空状态 ---------- */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px var(--spacing-lg);
  text-align: center;
}

.empty-state .empty-icon {
  font-size: 48px;
  margin-bottom: var(--spacing-md);
}

.empty-state .empty-title {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

.empty-state .empty-desc {
  font-size: 13px;
  color: var(--text-tertiary);
}

/* ---------- Badge 徽标 ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
}

.badge-success { background: rgba(0, 230, 118, 0.15); color: var(--color-success); }
.badge-error   { background: rgba(255, 82, 82, 0.15);  color: var(--color-error); }
.badge-warning { background: rgba(255, 193, 7, 0.15);  color: var(--color-warning); }
.badge-blue    { background: rgba(0, 212, 255, 0.15);  color: var(--accent-blue); }

/* ---------- Toast ---------- */
.toast-container {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 9999;
  pointer-events: none;
  padding-top: var(--spacing-md);
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 12px 20px;
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  font-size: 14px;
  color: var(--text-primary);
  animation: toastSlideIn 0.35s ease forwards;
  pointer-events: auto;
  max-width: 90%;
}

.toast.toast-out {
  animation: toastSlideOut 0.3s ease forwards;
}

.toast-success { border-left: 3px solid var(--color-success); }
.toast-error   { border-left: 3px solid var(--color-error); }
.toast-warning { border-left: 3px solid var(--color-warning); }

.toast .toast-icon { font-size: 18px; }

/* ---------- Modal ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 8000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
  padding: var(--spacing-lg);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  width: 100%;
  max-width: 320px;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  transform: scale(0.9) translateY(20px);
  transition: transform 0.25s ease;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.modal-overlay.active .modal {
  transform: scale(1) translateY(0);
}

.modal-title {
  font-size: 17px;
  font-weight: 600;
  text-align: center;
  margin-bottom: var(--spacing-sm);
}

.modal-content {
  font-size: 14px;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: var(--spacing-lg);
  line-height: 1.6;
}

.modal-actions {
  display: flex;
  gap: var(--spacing-sm);
}

.modal-actions .btn {
  flex: 1;
}

/* ---------- Loading ---------- */
.loading-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(10, 14, 23, 0.7);
  z-index: 9500;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s ease;
}

.loading-overlay.active {
  opacity: 1;
  visibility: visible;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--accent-blue);
  border-radius: var(--radius-full);
  animation: spin 0.8s linear infinite;
}

/* ---------- 标签页切换 ---------- */
.tabs {
  display: flex;
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  padding: 3px;
  gap: 2px;
}

.tab-item {
  flex: 1;
  text-align: center;
  padding: 8px 0;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-tertiary);
  transition: all 0.2s;
  cursor: pointer;
}

.tab-item.active {
  background: var(--bg-tertiary);
  color: var(--accent-blue);
}

/* ---------- 动画 Keyframes ---------- */
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes toastSlideIn {
  from { opacity: 0; transform: translateY(-100%); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes toastSlideOut {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(-100%); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.5; }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.9); }
  to   { opacity: 1; transform: scale(1); }
}

@keyframes glow {
  0%, 100% { box-shadow: 0 0 5px rgba(0, 212, 255, 0.3); }
  50%      { box-shadow: 0 0 20px rgba(0, 212, 255, 0.6); }
}

/* ---------- 滚动条美化 ---------- */
::-webkit-scrollbar {
  width: 4px;
}

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

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* ---------- 工具类 ---------- */
.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-center { text-align: center; }
.text-right  { text-align: right; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }

.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }