/* 校园餐管理系统 —— 轻量自适应布局（基于 Pico.css 之上补充） */

:root {
  --topbar-h: 56px;
  --sidebar-w: 220px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
}

/* ---------- 登录（访客） ---------- */
body.guest {
  display: flex;
  min-height: 100vh;
  align-items: center;
  justify-content: center;
  background: #f3f5f9;
  padding: 1rem;
}
.guest-wrap { width: 100%; max-width: 420px; }
.login-card {
  padding: 1.5rem 1.75rem;
  border-radius: 14px;
  box-shadow: 0 10px 30px rgba(0,0,0,.08);
}
.login-card hgroup h2 { margin-bottom: .25rem; }
.login-card form { margin-top: 1rem; }

/* ---------- 后台布局 ---------- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  height: var(--topbar-h);
  display: flex; align-items: center; gap: .75rem;
  padding: 0 1rem;
  background: #1f2937; color: #fff;
}
.topbar .brand { font-weight: 600; }
.topbar .spacer { flex: 1; }
.topbar .who { font-size: .9rem; opacity: .85; }
.topbar .logout { color: #cbd5e1; text-decoration: none; font-size: .9rem; }
.topbar .logout:hover { color: #fff; }
.menu-toggle {
  display: none;
  background: transparent; border: 0; color: #fff;
  font-size: 1.4rem; cursor: pointer; padding: .25rem .5rem;
}

.layout { display: flex; min-height: calc(100vh - var(--topbar-h)); }

.sidebar {
  width: var(--sidebar-w);
  flex: 0 0 var(--sidebar-w);
  background: #111827;
  padding: 1rem .5rem;
}
.sidebar nav { display: flex; flex-direction: column; gap: .25rem; }
.sidebar nav a {
  color: #cbd5e1; text-decoration: none;
  padding: .6rem .9rem; border-radius: 8px; font-size: .95rem;
}
.sidebar nav a:hover { background: #1f2937; color: #fff; }

.content { flex: 1; padding: 1.25rem 1.5rem; overflow-x: auto; }
.content-inner { max-width: 1100px; margin: 0 auto; }

/* 卡片 */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 1rem; margin: 1rem 0; }
.card {
  display: block; text-decoration: none; color: inherit;
  border: 1px solid #e5e7eb; border-radius: 12px; padding: 1rem 1.1rem;
  background: #fff;
}
.card:hover { border-color: #93c5fd; box-shadow: 0 6px 18px rgba(0,0,0,.06); }
.card strong { display: block; margin-bottom: .25rem; }
.card span { color: #6b7280; font-size: .9rem; }

/* 提示与筛选 */
.hint { color: #374151; }
.warn { color: #b45309; background: #fffbeb; border: 1px solid #fde68a; border-radius: 6px; padding: .5rem .75rem; margin: .5rem 0 1rem; }
.warn label.inline, label.inline { display: inline; width: auto; margin: 0; }
.muted { color: #6b7280; }
.filter { display: flex; flex-wrap: wrap; gap: .6rem; align-items: end; margin-bottom: 1rem; }
.filter input, .filter select { width: auto; margin: 0; }
.filter button { margin: 0; }

.alert { padding: .75rem 1rem; border-radius: 10px; margin-bottom: 1rem; }
.alert.success { background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
.alert.error   { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }

/* 表格：移动端横向滚动 */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { padding: .5rem .6rem; border-bottom: 1px solid #eee; white-space: nowrap; }
th { text-align: left; background: #f9fafb; }

.pager { display: flex; gap: 1rem; align-items: center; margin-top: 1rem; }

/* ---------- 分班名单（移动端紧凑） ---------- */
/* 整页边距压缩：去掉 guest 布局的 1rem 外距，卡片左右内边距缩为约 1/3 */
body.roster-page { padding: 0; }
body.roster-page .guest-wrap { max-width: none; }
body.roster-page .login-card { padding: .45rem .5rem; border-radius: 0; box-shadow: none; }
.roster h1 { font-size: .9rem; margin: 0 0 .25rem; font-weight: 700; }
.roster .hint { font-size: .74rem; color: #374151; margin: 0 0 .35rem; }
.roster form { margin-top: .3rem; }
.roster form label { font-size: .78rem; }
.roster form input { font-size: .92rem; padding: .25rem .4rem; }
.roster form button { font-size: .78rem; padding: .3rem .85rem; margin-top: .3rem; }
.roster .table-wrap { margin: .2rem 0; }
.roster table { font-size: .72rem; }
.roster th, .roster td { padding: .22rem .3rem; }

/* ---------- 移动端自适应 ---------- */
@media (max-width: 768px) {
  .menu-toggle { display: block; }
  .sidebar {
    position: fixed; top: var(--topbar-h); bottom: 0; left: 0;
    transform: translateX(-100%); transition: transform .2s ease;
    z-index: 15;
  }
  .sidebar.open { transform: translateX(0); }
  .content { padding: .9rem 1rem; }
}