/* ============================================================
   SIM 卡管理 - 样式表
   ============================================================ */

/* ------------------- CSS 变量 / 主题 ------------------- */
:root,
[data-theme="light"] {
  --color-bg:            #f5f7fa;
  --color-surface:       #ffffff;
  --color-surface-hover: #f0f2f5;
  --color-border:        #e2e6ed;
  --color-text:          #1e293b;
  --color-text-secondary:#64748b;
  --color-primary:       #4f46e5;
  --color-primary-hover: #4338ca;
  --color-primary-light: #eef2ff;
  --color-danger:        #ef4444;
  --color-danger-hover:  #dc2626;
  --color-success:       #22c55e;
  --color-warning:       #eab308;
  --color-status-active: #22c55e;
  --color-status-expiring:#eab308;
  --color-status-expired:#ef4444;
  --color-shadow:        rgba(0,0,0,.08);
  --radius:              8px;
  --radius-lg:           12px;
  --transition:          .2s ease;
  --navbar-height:       60px;
  --modal-width:         520px;
  --font-sans:           -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans SC", sans-serif;
}

[data-theme="dark"] {
  --color-bg:            #0f172a;
  --color-surface:       #1e293b;
  --color-surface-hover: #334155;
  --color-border:        #334155;
  --color-text:          #f1f5f9;
  --color-text-secondary:#94a3b8;
  --color-primary:       #818cf8;
  --color-primary-hover: #6366f1;
  --color-primary-light: #1e1b4b;
  --color-danger:        #f87171;
  --color-danger-hover:  #ef4444;
  --color-success:       #4ade80;
  --color-warning:       #facc15;
  --color-status-active: #4ade80;
  --color-status-expiring:#facc15;
  --color-status-expired:#f87171;
  --color-shadow:        rgba(0,0,0,.3);
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  transition: background var(--transition), color var(--transition);
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

input, select, textarea, button {
  font-family: inherit;
  font-size: inherit;
}

/* ------------------- 通用工具类 ------------------- */
.hidden   { display: none !important; }
.sr-only  { position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0,0,0,0); }

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: 500;
  font-size: .875rem;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover { background: var(--color-primary-hover); }

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

.btn-danger {
  background: var(--color-danger);
  color: #fff;
}
.btn-danger:hover { background: var(--color-danger-hover); }

.btn-icon {
  background: transparent;
  border: none;
  font-size: 1.25rem;
  padding: 6px;
  cursor: pointer;
  border-radius: var(--radius);
  color: var(--color-text-secondary);
  transition: background var(--transition);
}
.btn-icon:hover { background: var(--color-surface-hover); }

.btn-block { width: 100%; }

.btn-sm { padding: 4px 10px; font-size: .8rem; }

/* ------------------- 视图切换 ------------------- */
.view { display: none; }
.view.active { display: block; }

/* ------------------- 登录/注册视图 ------------------- */
.auth-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.auth-card {
  width: 100%;
  max-width: 400px;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  box-shadow: 0 4px 24px var(--color-shadow);
}

.auth-title {
  font-size: 1.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 4px;
}

.auth-subtitle {
  text-align: center;
  color: var(--color-text-secondary);
  margin-bottom: 28px;
  font-size: .9rem;
}

.auth-switch {
  text-align: center;
  margin-top: 16px;
  font-size: .875rem;
  color: var(--color-text-secondary);
}

/* ------------------- 表单 ------------------- */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  margin-bottom: 4px;
  font-size: .875rem;
  font-weight: 500;
}

.required { color: var(--color-danger); }

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="number"],
.form-group input[type="date"],
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-group textarea { resize: vertical; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.checkbox-label {
  display: flex !important;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
}

/* ------------------- 导航栏 ------------------- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  height: var(--navbar-height);
  padding: 0 20px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 4px var(--color-shadow);
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.1rem;
  margin-right: auto;
}

.navbar-menu {
  display: flex;
  gap: 4px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius);
  color: var(--color-text-secondary);
  font-size: .875rem;
  font-weight: 500;
  transition: background var(--transition), color var(--transition);
}

.nav-link:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
  text-decoration: none;
}

.nav-link.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 16px;
}

.mobile-only { display: none; }

/* ------------------- 仪表盘 ------------------- */
.view-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.view-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.view-header .view-title { margin-bottom: 0; }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 20px;
  text-align: center;
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}

.stat-card:hover { box-shadow: 0 4px 12px var(--color-shadow); }

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.2;
}

.stat-label {
  font-size: .8rem;
  color: var(--color-text-secondary);
  margin-top: 4px;
}

.stat-active  .stat-value { color: var(--color-status-active); }
.stat-expiring .stat-value { color: var(--color-status-expiring); }
.stat-expired .stat-value { color: var(--color-status-expired); }

.dashboard-section {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 20px;
  border: 1px solid var(--color-border);
}

.dashboard-section h3 {
  font-size: 1rem;
  margin-bottom: 12px;
}

/* ------------------- 号码管理 / 卡片网格 ------------------- */
.filter-bar {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
}

.filter-input,
.filter-select {
  padding: 8px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: .875rem;
}

.filter-input { flex: 1; min-width: 0; }

.filter-input:focus,
.filter-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.sim-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 20px;
  border: 1px solid var(--color-border);
  position: relative;
  transition: box-shadow var(--transition), transform var(--transition);
}

.sim-card:hover {
  box-shadow: 0 6px 20px var(--color-shadow);
  transform: translateY(-2px);
}

.sim-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.sim-card-phone {
  font-size: 1.125rem;
  font-weight: 700;
}

.status-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 600;
}

.status-active  { background: #dcfce7; color: #166534; }
.status-expiring{ background: #fef9c3; color: #854d0e; }
.status-expired { background: #fee2e2; color: #991b1b; }

[data-theme="dark"] .status-active  { background: #052e16; color: #4ade80; }
[data-theme="dark"] .status-expiring{ background: #422006; color: #facc15; }
[data-theme="dark"] .status-expired { background: #450a0a; color: #f87171; }

.sim-card-info {
  font-size: .85rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.sim-card-info span {
  display: block;
}

.sim-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
}

.sim-card-actions .btn-sm {
  flex: 1 1 auto;
  min-width: 0;
  padding: 6px 8px;
  font-size: 13px;
  text-align: center;
}

/* ------------------- 充值记录表格 ------------------- */
.recharge-table-wrapper {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: .875rem;
}

.table th,
.table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.table th {
  font-weight: 600;
  background: var(--color-surface-hover);
  white-space: nowrap;
}

.table tbody tr:hover {
  background: var(--color-surface-hover);
}

/* ------------------- 模态框 ------------------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.modal.hidden { display: none; }

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.45);
}

.modal-content {
  position: relative;
  width: 100%;
  max-width: var(--modal-width);
  max-height: 90vh;
  overflow-y: auto;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(0,0,0,.2);
  display: flex;
  flex-direction: column;
}

.modal-sm { max-width: 380px; }

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px 0;
}

.modal-header h3 {
  font-size: 1.1rem;
  font-weight: 700;
}

.modal-body {
  padding: 20px 24px;
  overflow-y: auto;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 16px 24px;
  border-top: 1px solid var(--color-border);
}

/* ------------------- 通知 ------------------- */
#notify-container {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.notify {
  pointer-events: auto;
  padding: 12px 20px;
  border-radius: var(--radius);
  color: #fff;
  font-size: .875rem;
  font-weight: 500;
  box-shadow: 0 4px 12px rgba(0,0,0,.15);
  animation: notify-in .3s ease;
  max-width: 340px;
}

.notify-success { background: var(--color-success); }
.notify-error   { background: var(--color-danger); }
.notify-info    { background: var(--color-primary); }

@keyframes notify-in {
  from { opacity: 0; transform: translateY(-12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ------------------- 空状态 ------------------- */
.empty-msg {
  text-align: center;
  color: var(--color-text-secondary);
  padding: 40px 16px;
  font-size: .9rem;
}

/* ------------------- 卡片列表（仪表盘用） ------------------- */
.card-list .list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: .875rem;
}

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

/* ============================================================
   响应式设计 - 移动端优先
   ============================================================ */

/* 小屏幕 (≤640px) */
@media (max-width: 640px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .navbar-menu {
    display: none;
    position: absolute;
    top: var(--navbar-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 8px;
    box-shadow: 0 4px 12px var(--color-shadow);
  }

  .navbar-menu.open { display: flex; }

  .mobile-only { display: inline-flex; }

  .navbar-actions .btn-outline { display: none; }

  .form-row {
    grid-template-columns: 1fr;
  }

  .filter-bar {
    flex-direction: column;
  }

  .cards-grid {
    grid-template-columns: 1fr;
  }

  .modal-content {
    max-height: 100vh;
    border-radius: 0;
  }

  .modal {
    padding: 0;
    align-items: flex-end;
  }

  .auth-card {
    padding: 32px 20px;
  }
}

/* ------------------- Toast 通知 ------------------- */
#notify-container {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  min-width: 220px;
  max-width: 360px;
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  color: #fff;
  background: #334155;
  box-shadow: 0 4px 12px rgba(0,0,0,.15);
  opacity: 0;
  transform: translateX(20px);
  transition: opacity .25s ease, transform .25s ease;
  pointer-events: auto;
}

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

.toast-success { background: var(--color-success); }
.toast-error   { background: var(--color-danger);  }
.toast-info    { background: var(--color-primary);  }

/* ------------------- 导航栏用户邮箱 ------------------- */
.navbar-user-email {
  font-size: 13px;
  color: var(--color-text-secondary);
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding: 4px 8px;
  background: var(--color-surface-hover);
  border-radius: var(--radius);
}

/* ------------------- 充值统计 ------------------- */
.recharge-stats {
  margin-bottom: 20px;
}

.stats-summary {
  display: flex;
  gap: 16px;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: 16px 20px;
  flex-wrap: wrap;
  align-items: flex-start;
}

.stat-block {
  flex: 1;
  min-width: 100px;
  text-align: center;
}

.stat-num {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
}

.stat-desc {
  font-size: .75rem;
  color: var(--color-text-secondary);
  margin-top: 4px;
}

.monthly-stats {
  flex: 2;
}

.month-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-top: 2px;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--color-surface-hover);
  border-radius: var(--radius);
  padding: 4px 10px;
  font-size: .78rem;
}

.stat-month {
  color: var(--color-text-secondary);
  font-size: .72rem;
}

.stat-val {
  font-weight: 600;
  color: var(--color-text);
}

.stat-empty {
  font-size: .8rem;
  color: var(--color-text-secondary);
}

/* ------------------- 仪表盘即将到期列表 ------------------- */
.expiring-card-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: .875rem;
  flex-wrap: wrap;
}

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

.expiring-phone {
  font-weight: 600;
  min-width: 120px;
}

.expiring-meta {
  display: flex;
  align-items: center;
  gap: 8px;
}

.expiring-date {
  margin-left: auto;
  color: var(--color-text-secondary);
  font-size: .8rem;
}

.carrier-tag {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 999px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: .72rem;
  font-weight: 500;
}

.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: .72rem;
  font-weight: 600;
}

.badge-expiring {
  background: #fef9c3;
  color: #854d0e;
}

.badge-expired {
  background: #fee2e2;
  color: #991b1b;
}

[data-theme="dark"] .badge-expiring { background: #422006; color: #facc15; }
[data-theme="dark"] .badge-expired  { background: #450a0a; color: #f87171; }

/* ------------------- 仪表盘最近充值列表 ------------------- */
.recent-recharge-item {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 8px 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: .875rem;
}

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

.rr-phone { font-weight: 600; }

.rr-amount {
  font-weight: 600;
  color: var(--color-primary);
  white-space: nowrap;
}

.rr-date {
  color: var(--color-text-secondary);
  font-size: .8rem;
  white-space: nowrap;
}

.rr-notes {
  grid-column: 1 / -1;
  font-size: .78rem;
  color: var(--color-text-secondary);
  margin-top: -4px;
}

/* ------------------- 充值表格单元格 ------------------- */
.amount-cell {
  font-weight: 600;
  color: var(--color-primary);
}

.notes-cell {
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--color-text-secondary);
}

/* ------------------- 本月充值统计卡 ------------------- */
.stat-monthly .stat-value {
  color: var(--color-primary);
  font-size: 1.4rem;
}

/* ------------------- SoSIM 同步模态框 ------------------- */
.view-header-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.sosim-steps-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin-bottom: 24px;
  padding: 12px 0;
}

.sosim-step-indicator {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  opacity: 0.4;
  transition: opacity var(--transition);
}

.sosim-step-indicator.active {
  opacity: 1;
}

.sosim-step-indicator.current .step-num {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 0 0 4px var(--color-primary-light);
}

.step-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .8rem;
  font-weight: 700;
  background: var(--color-surface-hover);
  color: var(--color-text-secondary);
  border: 2px solid var(--color-border);
  transition: background var(--transition), color var(--transition), box-shadow var(--transition);
}

.step-text {
  font-size: .75rem;
  color: var(--color-text-secondary);
  font-weight: 500;
}

.sosim-step-indicator.current .step-text {
  color: var(--color-primary);
}

.sosim-step-line {
  flex: 1;
  height: 2px;
  background: var(--color-border);
  margin: 0 12px;
  margin-bottom: 18px;
  max-width: 60px;
}

.sosim-hint {
  font-size: .8rem;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
  padding: 8px 12px;
  background: var(--color-primary-light);
  border-radius: var(--radius);
  line-height: 1.5;
}

.sosim-step-actions {
  display: flex;
  gap: 8px;
  margin-top: 20px;
  justify-content: flex-end;
}

.sosim-step-actions .btn-block {
  justify-content: center;
}

.sosim-phone-display {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  padding: 10px 14px;
  background: var(--color-surface-hover);
  border-radius: var(--radius);
  font-size: .9rem;
}

.sosim-phone-label {
  color: var(--color-text-secondary);
  font-size: .8rem;
}

.sosim-phone-value {
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: .5px;
}

.btn-loading {
  opacity: .7;
  cursor: not-allowed;
}

/* SoSIM 同步结果 */
.sosim-result-summary {
  text-align: center;
  padding: 16px 0;
}

.sosim-result-icon {
  font-size: 2.5rem;
  margin-bottom: 8px;
}

.sosim-result-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-success);
  margin-bottom: 4px;
}

.sosim-result-desc {
  font-size: .85rem;
  color: var(--color-text-secondary);
}

.sosim-result-detail {
  margin-top: 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.sosim-result-detail h4 {
  font-size: .85rem;
  font-weight: 600;
  padding: 10px 14px;
  background: var(--color-surface-hover);
  border-bottom: 1px solid var(--color-border);
  margin: 0;
}

.sosim-result-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 14px;
  border-bottom: 1px solid var(--color-border);
  font-size: .85rem;
}

.sosim-result-row:last-child {
  border-bottom: none;
}

.sosim-result-label {
  color: var(--color-text-secondary);
}

.sosim-result-value {
  font-weight: 600;
  color: var(--color-text);
}

/* 中等屏幕 (641px - 900px) */
@media (min-width: 641px) and (max-width: 900px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .cards-grid {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  }
}