/* ============================================================
   XMU Pass — 厦大主题样式系统
   基于 Bootstrap 5.3 · 移动优先 · 企微兼容
   ============================================================ */

/* ---- CSS 变量 (厦大品牌色板) ---- */
:root {
  --xmu-blue:        #1B3A5C;
  --xmu-blue-dark:   #0F2440;
  --xmu-blue-light:  #2C5F8A;
  --xmu-blue-pale:   #E8F0F8;
  --xmu-gold:        #B8860B;
  --xmu-gold-light:  #D4A843;
  --xmu-success:     #1B7E3D;
  --xmu-danger:      #C0392B;
  --xmu-warning:     #E67E22;
  --xmu-info:        #2471A3;
  --xmu-bg:          #F5F7FA;
  --xmu-card-bg:     #FFFFFF;
  --xmu-text:        #2C3E50;
  --xmu-text-muted:  #7F8C8D;
  --xmu-border:      #DEE2E6;
  --xmu-radius:      12px;
  --xmu-shadow:      0 2px 12px rgba(0,0,0,0.08);
  --xmu-shadow-lg:   0 8px 32px rgba(0,0,0,0.12);
  --xmu-font:        -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
}

/* ---- 基础重置 ---- */
html { font-size: 16px; }
body {
  font-family: var(--xmu-font);
  color: var(--xmu-text);
  background: var(--xmu-bg);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

/* ---- 导航栏 ---- */
.xmu-navbar {
  background: linear-gradient(135deg, var(--xmu-blue-dark) 0%, var(--xmu-blue) 100%);
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
  padding: 0;
}
.xmu-navbar .navbar-brand {
  color: #fff !important;
  font-weight: 600;
  letter-spacing: 0.5px;
}
.xmu-navbar .nav-link {
  color: rgba(255,255,255,0.85) !important;
  transition: color 0.2s;
  padding: 0.75rem 1rem;
}
.xmu-navbar .nav-link:hover,
.xmu-navbar .nav-link:focus {
  color: #fff !important;
}
.xmu-navbar .navbar-toggler { border-color: rgba(255,255,255,0.4); }
.xmu-navbar .navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.8)' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
.xmu-navbar .dropdown-menu {
  border: none;
  border-radius: var(--xmu-radius);
  box-shadow: var(--xmu-shadow-lg);
  margin-top: 0.5rem;
}
.xmu-navbar .dropdown-item { padding: 0.6rem 1.2rem; }
.xmu-navbar .dropdown-item i { width: 1.2rem; }

/* ---- 侧边栏 (桌面端) ---- */
.xmu-sidebar {
  background: linear-gradient(180deg, var(--xmu-blue-dark) 0%, var(--xmu-blue) 100%);
  min-height: 100vh;
  width: 260px;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 1040;
  transition: transform 0.3s ease;
}
.xmu-sidebar.collapsed { transform: translateX(-100%); }
.xmu-sidebar-brand {
  display: flex; align-items: center; gap: 10px;
  padding: 1.2rem 1rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  color: #fff; text-decoration: none;
}
.xmu-sidebar-brand img { width: 36px; height: 36px; border-radius: 8px; }
.xmu-sidebar-brand span { font-weight: 600; font-size: 1.05rem; }
.xmu-sidebar .nav-section { padding: 0.75rem 1rem 0.25rem; color: rgba(255,255,255,0.45); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 1px; }
.xmu-sidebar .nav-link {
  color: rgba(255,255,255,0.75);
  padding: 0.6rem 1rem; margin: 2px 0.5rem;
  border-radius: 8px;
  transition: all 0.2s;
  display: flex; align-items: center; gap: 10px;
}
.xmu-sidebar .nav-link i { width: 20px; text-align: center; font-size: 0.95rem; }
.xmu-sidebar .nav-link:hover { color: #fff; background: rgba(255,255,255,0.1); }
.xmu-sidebar .nav-link.active { color: #fff; background: rgba(255,255,255,0.18); font-weight: 500; }
.xmu-sidebar .badge { font-size: 0.7rem; }
.xmu-sidebar-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,0.5); z-index: 1035;
}

/* ---- 主内容区 ---- */
.xmu-main {
  margin-left: 260px;
  padding: 1.5rem;
  min-height: 100vh;
  transition: margin-left 0.3s ease;
}
.xmu-main.expanded { margin-left: 0; }
.xmu-page-header {
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--xmu-border);
}
.xmu-page-header h1 { font-size: 1.5rem; font-weight: 700; color: var(--xmu-blue); margin: 0; }

/* ---- 顶部导航布局 (未登录公开页面) ---- */
.xmu-public-layout .xmu-main { margin-left: 0; }

/* ---- 卡片 ---- */
.xmu-card {
  background: var(--xmu-card-bg);
  border: none;
  border-radius: var(--xmu-radius);
  box-shadow: var(--xmu-shadow);
  margin-bottom: 1.5rem;
  overflow: hidden;
}
.xmu-card-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--xmu-border);
  background: transparent;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--xmu-blue);
}
.xmu-card-body { padding: 1.25rem; }
.xmu-card-footer {
  padding: 0.75rem 1.25rem;
  border-top: 1px solid var(--xmu-border);
  background: var(--xmu-bg);
}

/* ---- 按钮 ---- */
.btn-xmu {
  background: var(--xmu-blue);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 0.6rem 1.5rem;
  font-weight: 500;
  transition: all 0.2s;
}
.btn-xmu:hover { background: var(--xmu-blue-light); color: #fff; box-shadow: 0 4px 12px rgba(27,58,92,0.3); }
.btn-xmu-outline {
  background: transparent;
  color: var(--xmu-blue);
  border: 2px solid var(--xmu-blue);
  border-radius: 8px;
  padding: 0.55rem 1.4rem;
  font-weight: 500;
  transition: all 0.2s;
}
.btn-xmu-outline:hover { background: var(--xmu-blue); color: #fff; }
.btn-xmu-gold { background: var(--xmu-gold); color: #fff; border: none; border-radius: 8px; }
.btn-xmu-gold:hover { background: var(--xmu-gold-light); color: #fff; }
.btn-xmu-sm { padding: 0.35rem 0.9rem; font-size: 0.85rem; }
.btn-xmu-lg { padding: 0.8rem 2rem; font-size: 1.1rem; }

/* ---- 表单 ---- */
.form-control, .form-select {
  border-radius: 8px;
  border: 1.5px solid var(--xmu-border);
  padding: 0.6rem 0.9rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-control:focus, .form-select:focus {
  border-color: var(--xmu-blue);
  box-shadow: 0 0 0 3px rgba(27,58,92,0.12);
}
.input-group-text {
  border-radius: 8px 0 0 8px;
  background: var(--xmu-bg);
  border: 1.5px solid var(--xmu-border);
  border-right: none;
}
.input-group .form-control { border-left: none; border-radius: 0 8px 8px 0; }

/* ---- 状态徽章 ---- */
.badge-xmu-success { background: var(--xmu-success); color: #fff; padding: 0.3em 0.7em; border-radius: 6px; }
.badge-xmu-danger  { background: var(--xmu-danger);  color: #fff; padding: 0.3em 0.7em; border-radius: 6px; }
.badge-xmu-warning { background: var(--xmu-warning); color: #fff; padding: 0.3em 0.7em; border-radius: 6px; }
.badge-xmu-info    { background: var(--xmu-info);    color: #fff; padding: 0.3em 0.7em; border-radius: 6px; }

/* ---- 表格 ---- */
.xmu-table { width: 100%; border-collapse: separate; border-spacing: 0; }
.xmu-table th {
  background: var(--xmu-bg);
  color: var(--xmu-text-muted);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 0.75rem 1rem;
  border-bottom: 2px solid var(--xmu-border);
}
.xmu-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--xmu-border);
  vertical-align: middle;
}
.xmu-table tbody tr:hover { background: var(--xmu-blue-pale); }

/* ---- Toast 消息 ---- */
.xmu-toasts {
  position: fixed; bottom: 1rem; left: 1rem; z-index: 9999;
  display: flex; flex-direction: column; gap: 0.5rem;
  max-width: 400px; width: calc(100% - 2rem);
}
.xmu-toast {
  background: #fff; border-radius: var(--xmu-radius);
  box-shadow: var(--xmu-shadow-lg); padding: 1rem;
  display: flex; align-items: flex-start; gap: 0.75rem;
  animation: xmuSlideIn 0.3s ease;
  border-left: 4px solid var(--xmu-info);
}
.xmu-toast.toast-success { border-left-color: var(--xmu-success); }
.xmu-toast.toast-danger  { border-left-color: var(--xmu-danger); }
.xmu-toast.toast-warning { border-left-color: var(--xmu-warning); }
.xmu-toast.toast-info    { border-left-color: var(--xmu-info); }
@keyframes xmuSlideIn { from { opacity: 0; transform: translateX(-50px); } to { opacity: 1; transform: translateX(0); } }

/* ---- 首页大卡片 ---- */
.xmu-hero-card {
  background: linear-gradient(135deg, var(--xmu-blue) 0%, var(--xmu-blue-dark) 100%);
  color: #fff;
  border-radius: var(--xmu-radius);
  padding: 2.5rem 2rem;
  margin-bottom: 2rem;
  position: relative;
  overflow: hidden;
}
.xmu-hero-card::after {
  content: ''; position: absolute;
  right: -40px; top: -40px;
  width: 200px; height: 200px;
  background: rgba(255,255,255,0.05);
  border-radius: 50%;
}
.xmu-hero-card h1 { font-size: 2rem; font-weight: 800; margin-bottom: 0.5rem; }
.xmu-hero-card p { opacity: 0.9; font-size: 1.1rem; margin: 0; }

/* ---- 操作入口卡片 ---- */
.xmu-action-card {
  background: #fff;
  border-radius: var(--xmu-radius);
  box-shadow: var(--xmu-shadow);
  padding: 2rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s;
  border: 2px solid transparent;
  height: 100%;
  text-decoration: none;
  color: var(--xmu-text);
  display: block;
}
.xmu-action-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--xmu-shadow-lg);
  border-color: var(--xmu-blue);
  color: var(--xmu-text);
  text-decoration: none;
}
.xmu-action-card .xmu-action-icon {
  width: 64px; height: 64px;
  margin: 0 auto 1rem;
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem;
}
.xmu-action-card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 0.5rem; }
.xmu-action-card p { color: var(--xmu-text-muted); font-size: 0.95rem; margin: 0; }

/* ---- 流程步骤指示器 ---- */
.xmu-steps { display: flex; justify-content: center; margin: 1.5rem 0 2rem; }
.xmu-step {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.5rem 1rem;
  font-size: 0.9rem; color: var(--xmu-text-muted);
}
.xmu-step.active { color: var(--xmu-blue); font-weight: 600; }
.xmu-step.done { color: var(--xmu-success); }
.xmu-step-dot {
  width: 28px; height: 28px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--xmu-border); color: #fff; font-size: 0.8rem;
}
.xmu-step.active .xmu-step-dot { background: var(--xmu-blue); }
.xmu-step.done .xmu-step-dot { background: var(--xmu-success); }
.xmu-step-arrow { margin: 0 0.5rem; color: var(--xmu-border); }

/* ---- 统计数字卡片 ---- */
.xmu-stat-card {
  background: #fff;
  border-radius: var(--xmu-radius);
  box-shadow: var(--xmu-shadow);
  padding: 1.5rem;
  text-align: center;
}
.xmu-stat-card .xmu-stat-num {
  font-size: 2rem; font-weight: 800;
  color: var(--xmu-blue);
}
.xmu-stat-card .xmu-stat-label {
  font-size: 0.85rem; color: var(--xmu-text-muted);
  margin-top: 0.25rem;
}

/* ---- 页脚 ---- */
.xmu-footer {
  text-align: center; padding: 1.5rem;
  color: var(--xmu-text-muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--xmu-border);
  margin-top: 2rem;
}

/* ---- 进度条 ---- */
.xmu-progress { height: 6px; border-radius: 3px; background: var(--xmu-border); }
.xmu-progress-bar { border-radius: 3px; background: var(--xmu-blue); }

/* ---- 空状态 ---- */
.xmu-empty {
  text-align: center; padding: 3rem 1rem; color: var(--xmu-text-muted);
}
.xmu-empty i { font-size: 3rem; margin-bottom: 1rem; display: block; }

/* ---- 密码强度条 ---- */
.xmu-pw-bar { height: 6px; border-radius: 3px; background: #e9ecef; margin-top: 0.5rem; overflow: hidden; }
.xmu-pw-bar-fill { height: 100%; border-radius: 3px; transition: width 0.4s, background 0.4s; }
.xmu-pw-level { display: flex; justify-content: space-between; font-size: 0.75rem; margin-top: 0.25rem; color: var(--xmu-text-muted); }
.xmu-pw-level span.active { font-weight: 600; }

/* ---- 响应式 ---- */
@media (max-width: 991.98px) {
  .xmu-sidebar { transform: translateX(-100%); }
  .xmu-sidebar.mobile-open { transform: translateX(0); }
  .xmu-sidebar-overlay.show { display: block; }
  .xmu-main { margin-left: 0 !important; }
  .xmu-hero-card { padding: 1.5rem 1rem; }
  .xmu-hero-card h1 { font-size: 1.4rem; }
  .xmu-steps { flex-direction: column; align-items: flex-start; }
  .xmu-step-arrow { display: none; }
}

@media (max-width: 575.98px) {
  .xmu-action-card { padding: 1.25rem 1rem; }
  .xmu-toasts { left: 0.5rem; right: 0.5rem; max-width: none; }
}