/* 勾上去 - 管理后台 SaaS 风格，与前台 Bootstrap 一致使用本地资源 */

.admin-root {
  min-height: 100vh;
  background: #f1f5f9;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
}

/* ========== 登录页 ========== */
.admin-login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background: linear-gradient(160deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
}

.admin-login-card {
  width: 100%;
  max-width: 420px;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
  padding: 2.5rem;
}

.admin-login-logo {
  text-align: center;
  margin-bottom: 1.75rem;
}

.admin-login-logo img {
  width: 56px;
  height: 56px;
  display: block;
  margin: 0 auto 0.75rem;
}

.admin-login-logo .title {
  font-size: 1.5rem;
  font-weight: 700;
  color: #0f172a;
  letter-spacing: 0.02em;
}

.admin-login-logo .sub {
  font-size: 0.875rem;
  color: #64748b;
  margin-top: 0.25rem;
}

.admin-login-form .form-label {
  font-weight: 500;
  color: #334155;
  font-size: 0.875rem;
}

.admin-login-form .form-control {
  height: 48px;
  border-radius: 10px;
  border: 1px solid #e2e8f0;
  font-size: 1rem;
  padding: 0 1rem;
}

.admin-login-form .form-control:focus {
  border-color: #0d9488;
  box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
}

.admin-login-form .btn-login {
  height: 48px;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  background: linear-gradient(135deg, #0d9488 0%, #0f766e 100%);
  border: none;
  color: #fff;
  margin-top: 0.5rem;
  transition: opacity 0.2s, transform 0.1s;
}

.admin-login-form .btn-login:hover {
  color: #fff;
  opacity: 0.95;
  transform: translateY(-1px);
}

.admin-login-form .login-error {
  background: #fef2f2;
  color: #dc2626;
  font-size: 0.875rem;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  border: 1px solid #fecaca;
}

.admin-login-footer {
  text-align: center;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid #e2e8f0;
}

.admin-login-footer a {
  color: #64748b;
  font-size: 0.875rem;
  text-decoration: none;
  transition: color 0.2s;
}

.admin-login-footer a:hover {
  color: #0d9488;
}

/* ========== 后台首页 ========== */
.admin-layout {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1.5rem;
}

.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid #e2e8f0;
}

.admin-header h1 {
  font-size: 1.35rem;
  font-weight: 700;
  color: #0f172a;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.admin-header h1 img {
  width: 32px;
  height: 32px;
}

.admin-header .logout-link {
  color: #64748b;
  font-size: 0.875rem;
  text-decoration: none;
  padding: 0.4rem 0.75rem;
  border-radius: 8px;
  transition: color 0.2s, background 0.2s;
}

.admin-header .logout-link:hover {
  color: #0d9488;
  background: #f0fdfa;
}

.admin-nav {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.admin-nav a {
  padding: 0.6rem 1.25rem;
  border-radius: 10px;
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  color: #64748b;
  background: #fff;
  border: 1px solid #e2e8f0;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.admin-nav a:hover {
  color: #0d9488;
  border-color: #99f6e4;
  background: #f0fdfa;
}

.admin-nav a.active {
  color: #fff;
  background: linear-gradient(135deg, #0d9488 0%, #0f766e 100%);
  border-color: transparent;
  pointer-events: none;
}

.admin-card {
  background: #fff;
  border-radius: 12px;
  border: 1px solid #e2e8f0;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  overflow: hidden;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.admin-table th,
.admin-table td {
  padding: 0.875rem 1rem;
  text-align: left;
  border-bottom: 1px solid #f1f5f9;
}

.admin-table th {
  font-weight: 600;
  color: #475569;
  background: #f8fafc;
}

.admin-table tr:last-child td {
  border-bottom: none;
}

.admin-table tbody tr:hover {
  background: #f8fafc;
}

.admin-empty {
  padding: 3rem 1rem;
  text-align: center;
  color: #94a3b8;
  font-size: 0.9375rem;
}

.admin-back-home {
  margin-top: 1.5rem;
}

.admin-back-home a {
  color: #64748b;
  font-size: 0.875rem;
  text-decoration: none;
}

.admin-back-home a:hover {
  color: #0d9488;
}