:root {
  --brand: #07c160;
  --brand-dark: #06ad56;
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #23262b;
  --muted: #8a9099;
  --line: #e6e8eb;
  --red: #e54d42;
  --orange: #f0a020;
  --blue: #1989fa;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.6;
}

/* ---- 顶栏 ---- */
.topbar {
  display: flex; align-items: center; gap: 24px;
  padding: 0 24px; height: 56px;
  background: #fff; border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 10;
}
.brand { font-weight: 700; color: var(--brand-dark); white-space: nowrap; }
.topbar nav { display: flex; gap: 18px; flex: 1; }
.topbar nav a { color: var(--text); text-decoration: none; padding: 4px 0; }
.topbar nav a:hover { color: var(--brand-dark); }
.userbox { display: flex; align-items: center; gap: 12px; color: var(--muted); }
.userbox .logout { color: var(--red); text-decoration: none; }

.container { max-width: 1080px; margin: 0 auto; padding: 24px; }

h1 { font-size: 22px; margin: 8px 0 20px; }
h2 { font-size: 17px; margin: 28px 0 12px; }

/* ---- 卡片 ---- */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.card {
  background: var(--card); border-radius: 12px; padding: 18px 20px;
  border: 1px solid var(--line);
}
.card .num { font-size: 28px; font-weight: 700; color: var(--brand-dark); }
.card .label { color: var(--muted); margin-top: 4px; }

/* ---- 表单 ---- */
label { display: block; margin: 10px 0; color: #444; }
input[type=text], input[type=password], input[type=date], select, textarea {
  width: 100%; padding: 8px 10px; margin-top: 4px;
  border: 1px solid var(--line); border-radius: 8px; font-size: 14px;
  font-family: inherit; background: #fff;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--brand); }
.row { display: flex; gap: 16px; flex-wrap: wrap; }
.row > label { flex: 1; min-width: 180px; }
.row > label.grow { flex: 2; }
.checkbox { display: inline-flex; align-items: center; gap: 6px; margin-right: 18px; }
.checkbox input { width: auto; margin: 0; }

.panel {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 12px; padding: 18px 20px; margin-bottom: 16px;
}
.panel h2 { margin-top: 0; }

/* ---- 按钮 ---- */
.btn {
  display: inline-block; background: var(--brand); color: #fff; border: none;
  padding: 9px 20px; border-radius: 8px; font-size: 14px; cursor: pointer;
  text-decoration: none; margin-top: 8px;
}
.btn:hover { background: var(--brand-dark); }
.btn.ghost { background: #fff; color: var(--brand-dark); border: 1px solid var(--brand); }
.mini {
  padding: 4px 12px; font-size: 13px; border-radius: 6px; border: none;
  background: var(--brand); color: #fff; cursor: pointer;
}
.mini.ghost { background: #eef6ff; color: var(--blue); }
.mini.danger { background: #fdeceb; color: var(--red); }

/* ---- 表格 ---- */
.table {
  width: 100%; border-collapse: collapse; background: #fff;
  border-radius: 12px; overflow: hidden; border: 1px solid var(--line);
}
.table th, .table td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--line); }
.table th { background: #fafbfc; font-weight: 600; color: #555; }
.table tr:last-child td { border-bottom: none; }
.table.mark td, .table.mark th { padding: 8px 10px; text-align: center; }
.table.mark td:first-child, .table.mark th:first-child { text-align: left; }
.table.mark input[type=text] { min-width: 140px; }
.muted { color: var(--muted); text-align: center; }
.ellipsis { max-width: 320px; }

/* ---- 标签 ---- */
.tag, .pill {
  display: inline-block; padding: 2px 10px; border-radius: 20px;
  font-size: 12px; background: #eef1f4; color: #555;
}
.tag.ok, .pill.ok { background: #e8f8ee; color: var(--brand-dark); }
.tag.bad, .pill.bad { background: #fdeceb; color: var(--red); }
.tag.warn, .pill.warn { background: #fef6e6; color: var(--orange); }
.summary { display: flex; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; }

/* ---- 提示条 ---- */
.alert { padding: 12px 16px; border-radius: 10px; margin-bottom: 16px; }
.alert.ok { background: #e8f8ee; color: #1a7a44; }
.alert.warn { background: #fef6e6; color: #a56a00; }
.alert.info { background: #eef4ff; color: #2b5bb5; }

/* ---- 群卡片 ---- */
.group-card {
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
  padding: 14px 18px; margin-bottom: 8px;
}
.group-actions { margin: 4px 0 18px; display: flex; gap: 8px; }

/* ---- 登录页 ---- */
.login-body {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; background: linear-gradient(135deg, #07c160 0%, #05a04e 100%);
}
.login-card {
  background: #fff; padding: 40px 36px; border-radius: 16px; width: 340px;
  box-shadow: 0 18px 48px rgba(0,0,0,.18);
}
.login-card h1 { text-align: center; margin: 0; font-size: 20px; }
.login-card .sub { text-align: center; color: var(--muted); margin: 6px 0 22px; }
.login-card button {
  width: 100%; padding: 11px; margin-top: 16px; font-size: 15px;
  background: var(--brand); color: #fff; border: none; border-radius: 8px; cursor: pointer;
}
.login-card button:hover { background: var(--brand-dark); }
.error { background: #fdeceb; color: var(--red); padding: 8px 12px; border-radius: 8px; margin-bottom: 8px; }

/* ---- 其他 ---- */
.inline-form { display: inline-flex; align-items: flex-end; gap: 10px; margin: 0 12px 12px 0; }
.inline-form input[type=date] { width: auto; }
.actions { display: flex; gap: 6px; }
.actions form { margin: 0; }
.guide li { margin: 6px 0; }
code { background: #f0f2f5; padding: 1px 6px; border-radius: 4px; font-size: 13px; }

@media (max-width: 720px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .topbar nav { display: none; }
  .namelist { grid-template-columns: repeat(2, 1fr) !important; }
}

/* ---- 班长考勤：名字点选 ---- */
.hint {
  background: #eef4ff; color: #2b5bb5; padding: 12px 16px;
  border-radius: 10px; margin-bottom: 16px; line-height: 1.7;
}
.group { margin: 22px 0; }
.group h2 { margin: 0 0 12px; display: flex; align-items: center; gap: 10px; }
.group.male h2 { color: #2b6cb0; }
.group.female h2 { color: #c0398a; }
.badge {
  font-size: 12px; font-weight: 400; color: var(--muted);
  background: #f0f2f5; padding: 2px 10px; border-radius: 20px;
}
.namelist {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.chip { margin: 0; display: block; }
.chip input { display: none; }
.chip span {
  display: block; text-align: center; padding: 16px 6px;
  border-radius: 12px; background: #eef2f6; border: 2px solid transparent;
  font-size: 15px; cursor: pointer; user-select: none;
  transition: all .15s ease;
}
.chip span:hover { border-color: #b9c3cf; }
.group.male .chip input:checked + span {
  background: #e8f1fb; border-color: #2b6cb0; color: #2b6cb0; font-weight: 600;
}
.group.female .chip input:checked + span {
  background: #fdeef7; border-color: #c0398a; color: #c0398a; font-weight: 600;
}
.group.other .chip input:checked + span {
  background: #fdeceb; border-color: var(--red); color: var(--red); font-weight: 600;
}
.sticky-bar {
  position: sticky; bottom: 0; margin-top: 20px;
  display: flex; align-items: center; gap: 20px; flex-wrap: wrap;
  background: #fff; border-top: 1px solid var(--line);
  padding: 14px 4px; box-shadow: 0 -6px 16px rgba(0,0,0,.04);
}
.sticky-bar .total { font-size: 15px; }
.sticky-bar .total b { color: var(--red); font-size: 20px; }
.sticky-bar .btn { margin-top: 0; margin-left: auto; }

/* ---- 统计页 ---- */
.tabs { display: flex; gap: 8px; margin: 8px 0 4px; }
.tab {
  padding: 6px 18px; border-radius: 20px; text-decoration: none;
  background: #eef2f6; color: #555; font-size: 14px;
}
.tab.active { background: var(--brand); color: #fff; }
.muted-left { color: var(--muted); }