:root {
  --bg: #f4f6fa;
  --panel: #ffffff;
  --border: #e3e8f0;
  --text: #1c2733;
  --muted: #6b7a90;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --green: #16a34a;
  --amber: #d97706;
  --red: #dc2626;
  --sidebar-w: 232px;
  --radius: 10px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}

.hidden { display: none !important; }

/* ---------- 登录 ---------- */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1d4ed8 0%, #0f766e 100%);
  padding: 20px;
}
.login-card {
  width: 380px;
  max-width: 100%;
  background: var(--panel);
  border-radius: 16px;
  padding: 32px 28px;
  box-shadow: 0 20px 50px rgba(0,0,0,.25);
  text-align: center;
}
.login-logo { font-size: 52px; line-height: 1; margin-bottom: 8px; }
.login-card h1 { font-size: 19px; margin: 0 0 4px; }
.login-sub { color: var(--muted); margin: 0 0 22px; font-size: 13px; }
.login-card form { display: flex; flex-direction: column; gap: 12px; text-align: left; }
.login-card label { font-size: 13px; color: var(--muted); display: flex; flex-direction: column; gap: 5px; }
.login-card input {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  outline: none;
}
.login-card input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,.12); }
.login-error { color: var(--red); font-size: 13px; min-height: 18px; }
.login-hint { margin-top: 16px; font-size: 12px; color: var(--muted); }

/* ---------- 布局 ---------- */
.app { display: flex; height: 100vh; overflow: hidden; }
.sidebar {
  width: var(--sidebar-w);
  background: #101b2d;
  color: #c9d4e4;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  transition: margin-left .2s ease;
}
.sidebar.collapsed { margin-left: calc(var(--sidebar-w) * -1); }
.side-brand {
  padding: 18px 16px 14px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  display: flex;
  align-items: center;
  gap: 10px;
}
.side-brand .brand-icon { font-size: 26px; }
.side-brand .brand-name { font-size: 14px; font-weight: 600; color: #fff; line-height: 1.25; }
.side-brand .brand-sub { font-size: 11px; color: #7f93b0; }
.side-nav { flex: 1; overflow-y: auto; padding: 10px 8px; }
.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  color: #c9d4e4;
  margin-bottom: 2px;
  font-size: 13.5px;
  user-select: none;
}
.nav-item:hover { background: rgba(255,255,255,.07); color: #fff; }
.nav-item.active { background: var(--primary); color: #fff; }
.nav-item .nav-badge {
  margin-left: auto;
  background: var(--red);
  color: #fff;
  font-size: 11px;
  border-radius: 10px;
  padding: 1px 7px;
  font-weight: 600;
}
.side-foot { padding: 12px 16px; border-top: 1px solid rgba(255,255,255,.08); font-size: 11px; color: #64748b; }

.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.topbar {
  height: 54px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  flex-shrink: 0;
}
.topbar-left { display: flex; align-items: center; gap: 10px; }
.view-title { font-size: 16px; font-weight: 700; }
.topbar-right { display: flex; align-items: center; gap: 10px; }
.now-label { color: var(--muted); font-size: 12px; }
.user-chip { background: #eef2f9; border-radius: 16px; padding: 4px 12px; font-size: 13px; color: var(--text); }
.view { flex: 1; overflow-y: auto; padding: 18px; }

/* ---------- 通用组件 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 7px 14px;
  font-size: 13.5px;
  cursor: pointer;
  background: var(--panel);
  color: var(--text);
  transition: all .15s;
  white-space: nowrap;
}
.btn:hover { filter: brightness(.97); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-green { background: var(--green); color: #fff; }
.btn-amber { background: var(--amber); color: #fff; }
.btn-red { background: var(--red); color: #fff; }
.btn-ghost { background: transparent; border-color: var(--border); }
.btn-sm { padding: 4px 10px; font-size: 12.5px; border-radius: 7px; }
.icon-btn { padding: 6px 9px; font-size: 15px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: .55; cursor: not-allowed; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}
.card + .card { margin-top: 14px; }
.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}
.card-head h3 { margin: 0; font-size: 15px; }
.card-head .sub { color: var(--muted); font-size: 12px; }
.toolbar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.toolbar .spacer { flex: 1; }

.grid { display: grid; gap: 14px; }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 1100px) { .grid.cols-4 { grid-template-columns: repeat(2, 1fr); } .grid.cols-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 700px) { .grid.cols-4, .grid.cols-3, .grid.cols-2 { grid-template-columns: 1fr; } }

.stat {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.stat .num { font-size: 26px; font-weight: 800; line-height: 1.2; }
.stat .label { color: var(--muted); font-size: 12.5px; margin-top: 2px; }
.stat.overdue .num { color: var(--red); }
.stat.today .num { color: var(--amber); }
.stat.ok .num { color: var(--green); }
.stat.primary .num { color: var(--primary); }

table.tbl {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.tbl th {
  text-align: left;
  color: var(--muted);
  font-weight: 600;
  background: #f8fafc;
  padding: 9px 10px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.tbl td {
  padding: 9px 10px;
  border-bottom: 1px solid #eef2f7;
  vertical-align: top;
}
.tbl tr:hover td { background: #fafcff; }
.tbl .actions { white-space: nowrap; }
.tbl .num-cell { font-variant-numeric: tabular-nums; }
.wrap-table { overflow-x: auto; }

.tag {
  display: inline-block;
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}
.tag-gray { background: #eef2f7; color: #4b5b70; }
.tag-blue { background: #dbeafe; color: #1d4ed8; }
.tag-green { background: #dcfce7; color: #15803d; }
.tag-amber { background: #fef3c7; color: #b45309; }
.tag-red { background: #fee2e2; color: #b91c1c; }
.tag-purple { background: #ede9fe; color: #6d28d9; }

.todo-item {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: #fff;
  margin-bottom: 8px;
}
.todo-item .dot { width: 8px; height: 8px; border-radius: 50%; margin-top: 6px; flex-shrink: 0; }
.todo-item .dot.red { background: var(--red); }
.todo-item .dot.amber { background: var(--amber); }
.todo-item .dot.green { background: var(--green); }
.todo-item .dot.gray { background: #94a3b8; }
.todo-item .body { flex: 1; min-width: 0; }
.todo-item .title { font-weight: 600; }
.todo-item .meta { color: var(--muted); font-size: 12px; margin-top: 2px; }

.empty {
  text-align: center;
  color: var(--muted);
  padding: 30px 10px;
  font-size: 13px;
}

.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px 14px; }
.form-grid .full { grid-column: 1 / -1; }
.form-grid label { display: flex; flex-direction: column; gap: 5px; font-size: 12.5px; color: var(--muted); }
.form-grid label > span.req::after { content: " *"; color: var(--red); }
.form-grid input, .form-grid select, .form-grid textarea {
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 13.5px;
  outline: none;
  background: #fff;
  color: var(--text);
  font-family: inherit;
}
.form-grid input:focus, .form-grid select:focus, .form-grid textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,.1); }
.form-grid textarea { resize: vertical; min-height: 60px; }
.form-section { grid-column: 1 / -1; font-size: 12px; color: var(--primary); font-weight: 700; border-top: 1px dashed var(--border); padding-top: 10px; margin-top: 4px; }

/* ---------- 弹窗 ---------- */
.modal-mask {
  position: fixed;
  inset: 0;
  background: rgba(15,23,42,.45);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 30px 16px;
  z-index: 100;
  overflow-y: auto;
}
.modal {
  background: #fff;
  border-radius: 14px;
  width: 720px;
  max-width: 100%;
  box-shadow: 0 20px 60px rgba(0,0,0,.25);
  animation: pop .16s ease;
}
.modal.wide { width: 960px; }
.modal.small { width: 460px; }
@keyframes pop { from { transform: translateY(8px); opacity: 0; } to { transform: none; opacity: 1; } }
.modal-head {
  padding: 15px 18px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.modal-head h3 { margin: 0; font-size: 15.5px; }
.modal-body { padding: 18px; max-height: 72vh; overflow-y: auto; }
.modal-foot {
  padding: 13px 18px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* ---------- Toast ---------- */
#toast-root { position: fixed; top: 16px; right: 16px; z-index: 200; display: flex; flex-direction: column; gap: 8px; }
.toast {
  background: #101b2d;
  color: #fff;
  padding: 11px 16px;
  border-radius: 10px;
  font-size: 13px;
  box-shadow: 0 8px 24px rgba(0,0,0,.25);
  animation: slidein .2s ease;
  max-width: 380px;
}
.toast.ok { border-left: 4px solid var(--green); }
.toast.err { border-left: 4px solid var(--red); }
.toast.warn { border-left: 4px solid var(--amber); }
@keyframes slidein { from { transform: translateX(20px); opacity: 0; } to { transform: none; opacity: 1; } }

/* ---------- 行内编辑 / 详情 ---------- */
.detail-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px 16px; font-size: 13px; }
.detail-grid .item { display: flex; gap: 8px; }
.detail-grid .item .k { color: var(--muted); min-width: 90px; flex-shrink: 0; }
.detail-grid .item .v { font-weight: 600; word-break: break-all; }
.kv-inline { display: flex; gap: 14px; flex-wrap: wrap; font-size: 12.5px; color: var(--muted); margin-top: 4px; }

.line-row { display: grid; grid-template-columns: 1.4fr .8fr .7fr .8fr 1fr auto; gap: 8px; margin-bottom: 8px; align-items: center; }
.line-row input, .line-row select { width: 100%; padding: 7px 9px; border: 1px solid var(--border); border-radius: 7px; font-size: 13px; }

.suggest-box {
  border: 1px dashed var(--primary);
  background: #eff6ff;
  border-radius: 10px;
  padding: 12px 14px;
  margin-bottom: 10px;
  font-size: 13px;
}
.suggest-box ul { margin: 6px 0 0; padding-left: 18px; }
.suggest-box li { margin: 2px 0; }

.mini-table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.mini-table th, .mini-table td { border: 1px solid var(--border); padding: 6px 8px; text-align: left; }
.mini-table th { background: #f8fafc; color: var(--muted); font-weight: 600; }

.progress-steps { display: flex; gap: 4px; flex-wrap: wrap; align-items: center; font-size: 12px; color: var(--muted); }
.progress-steps .step { display: flex; align-items: center; gap: 4px; }
.progress-steps .step.done { color: var(--green); font-weight: 600; }
.progress-steps .step.current { color: var(--primary); font-weight: 700; }
.progress-steps .arrow { color: #cbd5e1; }

input[type="datetime-local"] { font-variant-numeric: tabular-nums; }
.muted { color: var(--muted); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12.5px; }
.search-input { padding: 7px 11px; border: 1px solid var(--border); border-radius: 8px; font-size: 13px; outline: none; min-width: 220px; }
.search-input:focus { border-color: var(--primary); }

@media print {
  .sidebar, .topbar, .toolbar, .btn, .no-print { display: none !important; }
  .view { overflow: visible; padding: 0; }
  body { background: #fff; }
  .card { border: none; }
}