:root {
  --navy: #0f2b46;
  --navy-2: #1b4570;
  --accent: #c8102e;
  --bg: #eef2f7;
  --card: #ffffff;
  --line: #ccd6e0;
  --line-soft: #e3eaf2;
  --text: #17202a;
  --muted: #6b7c8f;
  --present: #d9f2d9;
  --present-b: #2e7d32;
  --late: #fff2cc;
  --late-b: #b7791f;
  --absent: #fbd5d5;
  --absent-b: #c62828;
  --leave: #dce6f7;
  --leave-b: #2b5fa8;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(16, 40, 66, .12), 0 6px 20px rgba(16, 40, 66, .06);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.6 "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", system-ui, sans-serif;
  -webkit-text-size-adjust: 100%;
}

.view[hidden] { display: none; }

/* ---------------- 登录 ---------------- */
.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px 16px;
  background:
    radial-gradient(1200px 500px at 50% -200px, rgba(27, 69, 112, .35), transparent),
    linear-gradient(160deg, #0f2b46, #17395c 60%, #0d2237);
}

.login-card {
  width: min(460px, 100%);
  background: var(--card);
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, .35);
  padding: 28px 26px 22px;
}

.brand { display: flex; gap: 12px; align-items: center; margin-bottom: 18px; }
.brand-badge {
  flex: 0 0 auto;
  width: 52px; height: 52px;
  border-radius: 12px;
  background: linear-gradient(150deg, var(--accent), #8c0a20);
  color: #fff;
  display: grid; place-items: center;
  font-weight: 700; font-size: 18px; letter-spacing: 1px;
}

/* 炼影 VISION 标志（白底方图，直接放在白色卡片上） */
.brand-logo {
  flex: 0 0 auto;
  width: 72px; height: 72px;
  border-radius: 12px;
  object-fit: contain;
  background: #fff;
}
.brand-logo.small { width: 34px; height: 34px; border-radius: 8px; }
.brand h1 { font-size: 16px; margin: 0 0 2px; }
.login-title { font-size: 15px; color: var(--navy-2); margin: 0 0 14px; font-weight: 600; }

label { display: block; margin-bottom: 12px; font-size: 13px; color: #33475b; }
input[type="text"], input[type="password"], textarea, .select {
  width: 100%;
  margin-top: 5px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font: inherit;
  font-size: 14px;
  background: #fbfdff;
  color: var(--text);
}
input:focus, textarea:focus, .select:focus { outline: 2px solid rgba(27, 69, 112, .35); border-color: var(--navy-2); }
textarea { resize: vertical; font-family: ui-monospace, Consolas, "Microsoft YaHei", monospace; font-size: 13px; }

.btn {
  appearance: none;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--navy);
  border-radius: 8px;
  padding: 8px 14px;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: .15s;
  white-space: nowrap;
}
.btn:hover { border-color: var(--navy-2); background: #f4f8fc; }
.btn.primary { background: var(--navy); border-color: var(--navy); color: #fff; font-weight: 600; }
.btn.primary:hover { background: var(--navy-2); }
.btn.ghost { background: transparent; }
.btn.small { padding: 5px 10px; font-size: 12px; }
.btn.block { width: 100%; padding: 11px; font-size: 15px; letter-spacing: 4px; }
.btn.danger { color: #fff; background: #c62828; border-color: #c62828; }

.error { color: #b3261e; background: #fdecea; border: 1px solid #f5c6c2; border-radius: 8px; padding: 8px 10px; font-size: 13px; margin-bottom: 10px; }
.muted { color: var(--muted); }
.small { font-size: 12px; }

/* ---------------- 顶栏 ---------------- */
.topbar {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 8px 14px;
  background: var(--navy);
  color: #fff;
  box-shadow: var(--shadow);
}
.topbar-left { display: flex; align-items: center; gap: 10px; min-width: 0; }
.topbar-title { display: flex; flex-direction: column; min-width: 0; }
.topbar-title strong { font-size: 14px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.topbar-title .muted { color: #b8cbe0; font-size: 12px; }
.topbar-right { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.topbar .btn { background: rgba(255, 255, 255, .12); border-color: rgba(255, 255, 255, .3); color: #fff; }
.topbar .btn:hover { background: rgba(255, 255, 255, .22); }
.chip { background: rgba(255, 255, 255, .14); border-radius: 999px; padding: 3px 10px; font-size: 12px; }
.save-state { font-size: 12px; padding: 3px 9px; border-radius: 999px; background: rgba(255,255,255,.14); }
.save-state.saving { background: #b7791f; }
.save-state.saved { background: #2e7d32; }
.save-state.error { background: #c62828; }

/* ---------------- 标签页 ---------------- */
.tabs {
  display: flex; align-items: center; gap: 4px;
  padding: 0 12px;
  background: #fff;
  border-bottom: 1px solid var(--line);
  position: sticky; top: 51px; z-index: 35;
  flex-wrap: wrap;
}
.tab {
  appearance: none; border: none; background: transparent;
  padding: 11px 14px; font: inherit; font-size: 14px; color: var(--muted);
  cursor: pointer; border-bottom: 2px solid transparent;
}
.tab:hover { color: var(--navy-2); }
.tab.active { color: var(--navy); font-weight: 600; border-bottom-color: var(--accent); }
.tabs .spacer { flex: 1 1 auto; }
.export-group { display: flex; gap: 6px; padding: 6px 0; align-items: center; }
.export-group .ver { font-size: 11px; color: var(--muted); margin-left: 2px; }

/* ---------------- 工具栏 ---------------- */
.toolbar {
  display: flex; flex-wrap: wrap; gap: 10px 18px; align-items: center;
  padding: 10px 14px;
  background: #fff;
  border-bottom: 1px solid var(--line-soft);
}
.tool-group { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.tool-group.grow { flex: 1 1 220px; }
.tool-label { font-size: 12px; color: var(--muted); }

.segmented { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.seg {
  appearance: none; border: none; background: #fff; padding: 6px 12px;
  font: inherit; font-size: 13px; cursor: pointer; color: #33475b;
  border-right: 1px solid var(--line-soft);
}
.seg:last-child { border-right: none; }
.seg:hover { background: #f4f8fc; }
.seg.active { background: var(--navy); color: #fff; font-weight: 600; }
.seg.st-present.active { background: var(--present-b); }
.seg.st-late.active { background: var(--late-b); }
.seg.st-absent.active { background: var(--absent-b); }
.seg.st-leave.active { background: var(--leave-b); }
.seg.st-clear.active { background: #55606d; }
.check { display: inline-flex; align-items: center; gap: 5px; margin: 0; font-size: 13px; color: #33475b; }
.check input { margin: 0; }
.login-remember { margin: 2px 0 4px; cursor: pointer; }
.login-tip { margin: 0 0 12px; line-height: 1.5; }

.hint { padding: 8px 14px; font-size: 12.5px; color: #4a5c70; background: #f6f9fc; border-bottom: 1px solid var(--line-soft); }
.hint .k { display: inline-block; padding: 0 5px; border: 1px solid var(--line); border-radius: 4px; background: #fff; font-family: ui-monospace, monospace; }

/* ---------------- 表格 ---------------- */
.grid-wrap {
  overflow: auto;
  max-height: calc(100vh - 230px);
  margin: 10px 14px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.grid { border-collapse: separate; border-spacing: 0; font-size: 12px; }
.grid th, .grid td { border-right: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); padding: 0; text-align: center; }
.grid th { background: #f2f6fa; font-weight: 600; color: var(--navy); }
.grid thead th { position: sticky; background: #eef4fa; z-index: 12; }
.grid thead tr.row-dates th { top: 0; height: 30px; }
.grid thead tr.row-slots th { top: 30px; height: 30px; }

.grid .col-name, .grid .col-class {
  position: sticky; left: 0; background: #fff; z-index: 11;
  text-align: left; padding: 5px 10px; white-space: nowrap;
}
.grid .col-class { left: 96px; width: 84px; }
.grid thead .col-name, .grid thead .col-class { background: #e6eff8; z-index: 16; }
.grid tbody tr:hover .col-name, .grid tbody tr:hover .col-class { background: #f7fbff; }

.grid .col-name { width: 96px; min-width: 96px; }
.grid .name-cell { display: flex; align-items: center; gap: 6px; }
.grid .name-cell b { font-size: 13px; }
.grid .tag {
  font-size: 10px; color: #7a5c00; background: #fff6dd; border: 1px solid #f0dca8;
  border-radius: 4px; padding: 0 4px; white-space: nowrap;
}
.grid .tag.leader { color: #fff; background: var(--accent); border-color: var(--accent); }
.grid .grp-row td {
  background: #e8f0f8; color: var(--navy); font-weight: 700; text-align: left;
  padding: 5px 10px; font-size: 12.5px; position: sticky; left: 0;
}
.grid .grp-row .grp-meta { font-weight: 400; color: var(--muted); margin-left: 8px; font-size: 11.5px; }

.slot-head { font-size: 10.5px; font-weight: 500; color: #3b4d61; min-width: 30px; width: 30px; padding: 4px 1px; line-height: 1.25; }
.date-head { font-size: 12px; padding: 5px 4px; background: #dde9f5 !important; }
.sum-head { min-width: 30px; }

.cell {
  width: 30px; height: 30px; cursor: pointer; user-select: none;
  font-weight: 700; font-size: 13px; position: relative;
  -webkit-touch-callout: none;   /* 手机上长按不弹出系统菜单 */
  touch-action: pan-x pan-y;     /* 保留横向/纵向滑动滚动 */
}
.cell:hover { outline: 2px solid var(--navy-2); outline-offset: -2px; }
.cell.selected { outline: 2px solid var(--accent); outline-offset: -2px; }
.cell.readonly { cursor: not-allowed; background-image: repeating-linear-gradient(45deg, #fafafa, #fafafa 4px, #f0f0f0 4px, #f0f0f0 8px); }
.cell.s-present { background: var(--present); color: var(--present-b); }
.cell.s-late { background: var(--late); color: var(--late-b); }
.cell.s-absent { background: var(--absent); color: var(--absent-b); }
.cell.s-leave { background: var(--leave); color: var(--leave-b); }
.cell.has-note::after {
  content: ""; position: absolute; top: 2px; right: 2px; width: 5px; height: 5px;
  border-radius: 50%; background: var(--accent);
}
.cell.saving { opacity: .55; }
.cell.failed { box-shadow: inset 0 0 0 2px #c62828; }

.col-note { min-width: 200px; text-align: left !important; }
.col-note input, .col-sub input {
  width: 100%; border: none; background: transparent; font: inherit; font-size: 12px;
  padding: 6px 8px; color: #33475b;
}
.col-note input:focus, .col-sub input:focus { outline: 2px solid rgba(27, 69, 112, .35); background: #fff; }
.col-sub { min-width: 110px; }

.sum-cell { font-size: 11px; color: #33475b; background: #f8fbfe; min-width: 30px; }
.sum-cell.warn { color: var(--absent-b); font-weight: 700; }
.stat-row td { background: #f2f6fa; font-weight: 600; text-align: left; padding: 5px 10px; }

.empty { padding: 40px; text-align: center; color: var(--muted); }

/* ---------------- 面板 ---------------- */
.panels { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; padding: 0 14px 24px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 12px 14px; }
.card-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.card-head h3 { margin: 0; font-size: 14px; color: var(--navy); }
.reminder-list { list-style: none; margin: 0 0 10px; padding: 0; max-height: 220px; overflow: auto; }
.reminder-list li { display: flex; align-items: flex-start; gap: 8px; padding: 6px 0; border-bottom: 1px dashed var(--line-soft); font-size: 13px; }
.reminder-list li.done span { text-decoration: line-through; color: var(--muted); }
.reminder-list li span { flex: 1; }
.reminder-list .del { border: none; background: transparent; color: var(--muted); cursor: pointer; font-size: 15px; line-height: 1; }
.reminder-list .del:hover { color: var(--absent-b); }
.reminder-form { display: flex; gap: 8px; }
.reminder-form input { flex: 1; }

.day-stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 8px; }
.stat-box { border: 1px solid var(--line-soft); border-radius: 8px; padding: 8px 10px; background: #fbfdff; }
.stat-box .k { font-size: 11.5px; color: var(--muted); }
.stat-box .v { font-size: 19px; font-weight: 700; color: var(--navy); }
.stat-box.present .v { color: var(--present-b); }
.stat-box.late .v { color: var(--late-b); }
.stat-box.absent .v { color: var(--absent-b); }
.stat-box.leave .v { color: var(--leave-b); }

/* ---------------- 统计 ---------------- */
.stats-table td, .stats-table th { padding: 6px 10px; font-size: 12.5px; text-align: center; }
.stats-table td.left, .stats-table th.left { text-align: left; }
.bar { height: 8px; border-radius: 4px; background: #e6ecf3; overflow: hidden; min-width: 60px; }
.bar > i { display: block; height: 100%; background: var(--present-b); }

/* ---------------- 管理 ---------------- */
.admin-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 12px; padding: 14px; align-items: start; }
.admin-grid .card.wide { grid-column: 1 / -1; }
.form-actions { display: flex; gap: 8px; }
.table-scroll { overflow: auto; max-height: 320px; }
.mini-table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.mini-table th, .mini-table td { border-bottom: 1px solid var(--line-soft); padding: 6px 8px; text-align: left; }
.mini-table th { background: #f2f6fa; color: var(--navy); position: sticky; top: 0; }
.mini-table td.actions { white-space: nowrap; }

/* ---------------- 对话框 ---------------- */
.dlg { border: none; border-radius: 12px; padding: 0; box-shadow: 0 24px 60px rgba(0, 0, 0, .3); max-width: 92vw; }
.dlg::backdrop { background: rgba(11, 30, 50, .45); }
.dlg form { padding: 18px 20px 14px; width: min(440px, 86vw); }
.dlg h3 { margin: 0 0 10px; font-size: 15px; color: var(--navy); }
.dlg menu { display: flex; justify-content: flex-end; gap: 8px; margin: 14px 0 0; padding: 0; }
.dlg .segmented { width: 100%; margin-bottom: 12px; }
.dlg .seg { flex: 1; }

/* ---------------- 导出范围弹窗 ---------------- */
.exp-range { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 4px 0 10px; }
.exp-range .exp-col:first-child { grid-column: 1 / -1; }
.exp-col { border: 1px solid var(--line-soft); border-radius: 8px; padding: 8px 10px; }
.exp-head { display: flex; align-items: center; justify-content: space-between; font-size: 12.5px; color: var(--navy); font-weight: 600; margin-bottom: 6px; }
.exp-list { max-height: 128px; overflow: auto; display: flex; flex-wrap: wrap; gap: 4px 10px; }
.exp-list label { display: inline-flex; align-items: center; gap: 4px; margin: 0; font-size: 12.5px; color: #33475b; min-width: 84px; }
.exp-list input { margin: 0; }
.exp-foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 8px; }

/* ---------------- 版权 ---------------- */
.copyright {
  margin: 18px 0 10px;
  text-align: center;
  font-size: 11.5px;
  color: var(--muted);
  line-height: 1.6;
}
.login-wrap .copyright { color: rgba(255, 255, 255, .75); margin-top: 14px; }

/* ---------------- 提示 ---------------- */
.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%);
  background: #17202a; color: #fff; padding: 10px 18px; border-radius: 999px;
  font-size: 13px; z-index: 100; box-shadow: 0 10px 30px rgba(0, 0, 0, .3);
  max-width: 88vw;
}
.toast.error { background: #b3261e; }

/* ---------------- 响应式 ---------------- */
/* 平板 / 窄窗口 */
@media (max-width: 900px) {
  .panels, .admin-grid { grid-template-columns: 1fr; }
  .grid-wrap { margin: 8px; max-height: calc(100vh - 260px); }
  .topbar { flex-wrap: wrap; }
  .tabs { top: auto; position: static; }
  .grid .col-name { width: 76px; min-width: 76px; }
  .grid .col-class { left: 76px; }
  .brand-logo.small { width: 30px; height: 30px; }
}

/* 手机竖屏 */
@media (max-width: 640px) {
  html, body { font-size: 15px; }

  /* 顶栏：标题一行，操作按钮一行 */
  .topbar { padding: 7px 10px; gap: 8px; align-items: flex-start; }
  .topbar-left { flex: 1 1 100%; }
  .topbar-title strong { font-size: 14px; white-space: normal; }
  .topbar-title .muted { font-size: 11.5px; }
  .topbar-right { flex: 1 1 100%; justify-content: flex-start; gap: 6px; }
  .topbar .btn { padding: 7px 11px; font-size: 12.5px; }
  .save-state, .chip { font-size: 11.5px; }

  /* 标签页与导出：横向可滑动，不换行挤成两行 */
  .tabs {
    flex-wrap: nowrap; overflow-x: auto; gap: 2px;
    padding: 0 8px; -webkit-overflow-scrolling: touch;
  }
  .tabs::-webkit-scrollbar { display: none; }
  .tab { padding: 11px 12px; font-size: 14px; flex: 0 0 auto; }
  .tabs .spacer { display: none; }
  .export-group { flex: 0 0 auto; gap: 6px; padding: 5px 0 5px 6px; }
  .export-group .btn { padding: 7px 10px; font-size: 12.5px; }

  /* 工具栏：每组一行，按钮更好点 */
  .toolbar { padding: 8px 10px; gap: 8px 12px; }
  .tool-group, .tool-group.grow { flex: 1 1 100%; gap: 6px; }
  .segmented { flex-wrap: wrap; }
  .seg { flex: 1 1 auto; min-height: 36px; padding: 8px 10px; }
  .btn { min-height: 36px; }
  .btn.small { min-height: 32px; padding: 7px 10px; font-size: 12.5px; }
  .select { min-height: 36px; }
  .hint { display: none; }        /* 手机上没有物理键盘，快捷键说明隐藏 */

  /* 考勤表：格子放大、左侧信息列收窄 */
  .grid-wrap {
    margin: 8px; max-height: none;
    -webkit-overflow-scrolling: touch;
  }
  .grid { font-size: 12.5px; }
  .grid th, .grid td { -webkit-tap-highlight-color: transparent; }
  .grid .col-name { width: 68px; min-width: 68px; padding: 5px 6px; }
  .grid .col-class { left: 68px; width: 54px; padding: 5px 6px; font-size: 11.5px; }
  .grid .name-cell b { font-size: 12.5px; }
  .grid .tag { font-size: 9.5px; padding: 0 3px; }
  .cell { width: 38px; min-width: 38px; height: 36px; font-size: 14px; }
  .slot-head { min-width: 38px; width: 38px; font-size: 10.5px; }
  .col-note { min-width: 130px; }
  .col-sub { min-width: 90px; }
  .col-note input, .col-sub input { font-size: 12.5px; padding: 8px 6px; }

  /* 面板与统计 */
  .panels { padding: 0 8px 20px; gap: 10px; }
  .card { padding: 10px 12px; }
  .reminder-form { flex-wrap: wrap; }
  .reminder-form .btn { flex: 1 1 100%; }
  .day-stats { grid-template-columns: repeat(auto-fill, minmax(104px, 1fr)); gap: 6px; }
  .stat-box .v { font-size: 17px; }
  .admin-grid { padding: 10px 8px; }
  .form-actions { flex-wrap: wrap; }
  .form-actions .btn { flex: 1 1 auto; }
  .stats-table td, .stats-table th { padding: 6px 8px; font-size: 12px; }

  /* 对话框铺满宽度，方便手机填写 */
  .dlg { max-width: 96vw; margin: auto; }
  .dlg form { padding: 16px 14px 12px; width: min(440px, 92vw); }
  .dlg menu { flex-direction: column-reverse; }
  .dlg menu .btn { width: 100%; }
  .toast { bottom: 16px; font-size: 12.5px; }
}