/* ============================================================
   layout.css — 顶栏 + 左侧导航 + 内容区
   ============================================================ */

.pms-layout { min-height: 100vh; }

/* ---------- 顶栏 ---------- */
.pms-topbar {
  position: fixed; top: 0; left: 0; right: 0; height: var(--topbar-height);
  background: var(--panel); border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 14px; padding: 0 18px; z-index: 200;
}
.pms-topbar .brand { display: flex; align-items: center; gap: 10px; min-width: var(--sidebar-width); }
.pms-topbar .brand .logo-mark {
  width: 32px; height: 32px; border-radius: 8px;
  background: linear-gradient(135deg, var(--brand-1), var(--brand-2));
  display: flex; align-items: center; justify-content: center; font-weight: 700; color: var(--accent-contrast); font-size: 15px;
}
.pms-topbar .brand .logo-name { font-size: 15px; font-weight: 700; letter-spacing: .5px; }
.pms-topbar .brand .logo-sub { font-size: 10px; color: var(--muted); line-height: 1; margin-top: 1px; }

.topbar-hotel { font-size: 13px; color: var(--text); font-weight: 600; }
.topbar-date { font-size: 12.5px; color: var(--muted); padding: 4px 12px; background: var(--panel2); border-radius: 20px; }

.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.topbar-user { display: flex; align-items: center; gap: 8px; cursor: pointer; padding: 4px 8px; border-radius: 8px; }
.topbar-user:hover { background: var(--panel2); }
.topbar-user .avatar {
  width: 28px; height: 28px; border-radius: 50%; background: var(--accent-soft);
  color: var(--accent); display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700;
}
.topbar-user .u-name { font-size: 13px; }
.topbar-user .u-role { font-size: 11px; color: var(--muted); }

/* ---------- 侧栏 ---------- */
.pms-sidebar {
  position: fixed; top: var(--topbar-height); left: 0; bottom: 0;
  width: var(--sidebar-width); background: var(--panel);
  border-right: 1px solid var(--border);
  overflow-y: auto; padding: 12px 10px; z-index: 150;
  transition: width var(--transition), transform var(--transition);
}
.nav-group-label {
  font-size: 10px; color: var(--faint); padding: 12px 10px 4px;
  letter-spacing: 1px; text-transform: uppercase;
}
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 10px; border-radius: 8px; color: var(--muted);
  cursor: pointer; user-select: none; font-size: 13.5px;
  border: 1px solid transparent; margin-bottom: 2px;
  transition: all var(--transition);
}
.nav-item:hover { background: var(--panel2); color: var(--text); }
.nav-item.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.nav-item .ico { width: 20px; text-align: center; font-size: 15px; flex-shrink: 0; }
.nav-item .label { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* 折叠态 */
body.sidebar-collapsed .pms-sidebar { width: 60px; }
body.sidebar-collapsed .pms-sidebar .label,
body.sidebar-collapsed .pms-sidebar .nav-group-label { display: none; }
body.sidebar-collapsed .pms-sidebar .nav-item { justify-content: center; padding: 9px 0; }

/* ---------- 内容区 ---------- */
.pms-content {
  margin-left: var(--sidebar-width); margin-top: var(--topbar-height);
  padding: 20px; min-height: calc(100vh - var(--topbar-height));
  transition: margin-left var(--transition);
}
body.sidebar-collapsed .pms-content { margin-left: 60px; }

/* ---------- 折叠按钮 ---------- */
.toggle-sidebar-btn {
  background: none; border: none; color: var(--muted); font-size: 17px;
  width: 32px; height: 32px; border-radius: 8px; display: flex; align-items: center; justify-content: center;
}
.toggle-sidebar-btn:hover { background: var(--panel2); color: var(--text); }

/* ---------- 主题切换按钮 ---------- */
.theme-toggle {
  background: none; border: none; color: var(--muted); font-size: 17px;
  width: 32px; height: 32px; border-radius: 8px; display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
}
.theme-toggle:hover { background: var(--panel2); color: var(--text); }
.theme-toggle .theme-icon { font-size: 16px; line-height: 1; }

/* ---------- 遮罩（移动端） ---------- */
.sidebar-mask {
  position: fixed; inset: var(--topbar-height) 0 0 0; background: var(--mask); z-index: 140;
}

/* ---------- 响应式 ---------- */
@media (max-width: 768px) {
  .pms-sidebar { transform: translateX(-100%); width: 240px; }
  body.mobile-menu-open .pms-sidebar { transform: translateX(0); box-shadow: var(--shadow-lg); }
  .pms-content { margin-left: 0; padding: 14px; }
  body.sidebar-collapsed .pms-content { margin-left: 0; }
  .pms-topbar .brand { min-width: 0; }
}

/* ---------- 页面兜底 ---------- */
.page-fallback { padding: 60px; text-align: center; color: var(--muted); background: var(--panel); border-radius: var(--radius-lg); border: 1px solid var(--border); }
.page-fallback h3 { color: var(--text); margin-bottom: 8px; }