/* 轮胎出货管理系统 · 浅色主题 / 响应式 / A4 横版打印 */
:root{
  --bg:#f5f7fa; --surface:#fff; --surface-2:#fafbfc; --line:#e3e8ee;
  --text:#1f2937; --muted:#6b7280; --primary:#1f6feb; --primary-soft:#eaf2ff;
  --ok:#16803c; --ok-soft:#e8f6ed; --warn:#a86a00; --warn-soft:#fff5d9;
  --danger:#c0392b; --danger-soft:#fdecea; --radius:8px;
  --shadow:0 1px 3px rgba(16,24,40,.06),0 1px 2px rgba(16,24,40,.04);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg); color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:14px; line-height:1.55; -webkit-text-size-adjust:100%;
}
.boot{padding:40px;text-align:center;color:var(--muted)}
a{color:var(--primary);text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:14px}
button{cursor:pointer}

/* 布局 */
.layout{display:flex;min-height:100vh}
.sidebar{width:216px;flex:0 0 216px;background:#12233b;color:#dbe5f2;padding:16px 12px}
.brand{font-size:16px;font-weight:700;color:#fff;padding:8px 10px 18px;letter-spacing:.5px}
.brand small{display:block;font-size:11px;font-weight:400;color:#8fa6c4;margin-top:4px;letter-spacing:0}
.nav-group{font-size:11px;color:#7e96b5;padding:14px 10px 6px;letter-spacing:1px}
.nav-item{display:block;padding:9px 12px;border-radius:6px;color:#dbe5f2;margin-bottom:2px;white-space:nowrap}
.nav-item:hover{background:#1d3555}
.nav-item.active{background:#1f6feb;color:#fff;font-weight:600}
.sidebar-foot{position:sticky;bottom:0;padding-top:18px;margin-top:18px;border-top:1px solid #29405e;font-size:12px;color:#8fa6c4}
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{background:var(--surface);border-bottom:1px solid var(--line);padding:12px 20px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.topbar .who{font-size:13px;color:var(--muted)}
.topbar .who b{color:var(--text)}
.content{padding:20px;flex:1;min-width:0}

/* 通用元素 */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px;margin-bottom:16px}
.card h2{margin:0 0 14px;font-size:16px;font-weight:650}
.card h3{margin:18px 0 10px;font-size:14px;font-weight:650}
.page-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;flex-wrap:wrap}
.page-head h1{margin:0;font-size:20px;font-weight:700}
.page-head .sub{font-size:12px;color:var(--muted);margin-top:4px}
.row{display:flex;gap:12px;flex-wrap:wrap;align-items:flex-end}
.row>*{min-width:0}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
label.field{display:block;min-width:0}
label.field>span{display:block;font-size:12px;color:var(--muted);margin-bottom:5px}
input[type=text],input[type=password],input[type=date],input[type=time],input[type=number],select,textarea{
  width:100%;padding:8px 10px;min-height:40px;border:1px solid var(--line);border-radius:6px;
  background:var(--surface);color:var(--text);outline:none
}
input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}
input[readonly],input:disabled,select:disabled{background:var(--surface-2);color:var(--muted)}
textarea{resize:vertical;min-height:64px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 14px;min-height:40px;
  border:1px solid var(--line);border-radius:6px;background:var(--surface);color:var(--text);font-weight:500}
.btn:hover{border-color:#c4cede;background:var(--surface-2)}
.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn.primary:hover{background:#1a5fd0}
.btn.danger{color:var(--danger);border-color:#f0c7c2}
.btn.ghost{border-color:transparent;background:transparent;color:var(--primary);padding:6px 8px;min-height:32px}
.btn.sm{padding:5px 10px;min-height:32px;font-size:13px}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn-bar{display:flex;gap:8px;flex-wrap:wrap;align-items:center}

.tag{display:inline-block;padding:2px 8px;border-radius:20px;font-size:12px;font-weight:600;white-space:nowrap}
.tag.gray{background:#eef1f5;color:#5b6675}
.tag.blue{background:var(--primary-soft);color:var(--primary)}
.tag.green{background:var(--ok-soft);color:var(--ok)}
.tag.yellow{background:var(--warn-soft);color:var(--warn)}
.tag.red{background:var(--danger-soft);color:var(--danger)}
.pending{color:var(--warn);font-weight:600;background:var(--warn-soft);padding:1px 6px;border-radius:4px}
.muted{color:var(--muted)}
.small{font-size:12px}
.mono{font-variant-numeric:tabular-nums}
.right{text-align:right}
.nowrap{white-space:nowrap}
.empty{padding:28px;text-align:center;color:var(--muted)}
.alert{padding:10px 12px;border-radius:6px;margin-bottom:14px;font-size:13px}
.alert.warn{background:var(--warn-soft);color:var(--warn);border:1px solid #f0dc9e}
.alert.err{background:var(--danger-soft);color:var(--danger);border:1px solid #f3c6c1}
.alert.ok{background:var(--ok-soft);color:var(--ok);border:1px solid #bfe6cd}
.alert.info{background:var(--primary-soft);color:#1857b8;border:1px solid #c9defd}

/* 表格 */
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:6px;background:var(--surface)}
table.tbl{width:100%;border-collapse:collapse;font-size:13px}
table.tbl th,table.tbl td{padding:8px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
table.tbl th{background:var(--surface-2);color:var(--muted);font-weight:600;white-space:nowrap;font-size:12px}
table.tbl tr:last-child td{border-bottom:0}
table.tbl tbody tr:hover{background:#fafbfd}
table.tbl td.num,table.tbl th.num{text-align:right;font-variant-numeric:tabular-nums}
table.tbl input[type=text],table.tbl input[type=number],table.tbl select{min-height:34px;padding:5px 8px;font-size:13px}
table.tbl .cell-ro{padding:5px 2px;color:var(--muted);font-variant-numeric:tabular-nums;display:block}
.tbl-foot{display:flex;gap:20px;flex-wrap:wrap;padding:12px 4px 0;font-size:14px}
.tbl-foot .item b{font-size:16px;font-variant-numeric:tabular-nums}

/* KPI */
.kpi{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:14px;box-shadow:var(--shadow)}
.kpi .label{font-size:12px;color:var(--muted)}
.kpi .value{font-size:26px;font-weight:700;font-variant-numeric:tabular-nums;margin-top:4px}
.kpi .hint{font-size:11px;color:var(--muted);margin-top:2px}

/* 登录 */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;
  background:linear-gradient(135deg,#12233b 0%,#1f6feb 100%)}
.login-box{width:100%;max-width:400px;background:#fff;border-radius:12px;padding:28px;box-shadow:0 12px 40px rgba(0,0,0,.2)}
.login-box h1{margin:0 0 4px;font-size:20px}
.login-box .sub{color:var(--muted);font-size:12px;margin-bottom:22px}
.login-box label.field{margin-bottom:14px}

/* 打印单据 */
.sheet{background:#fff;max-width:1120px;margin:0 auto;padding:24px;border:1px solid var(--line)}
.sheet h1{text-align:center;font-size:18px;letter-spacing:2px;margin:0 0 4px}
.sheet .en{text-align:center;color:var(--muted);font-size:11px;letter-spacing:1px;margin-bottom:18px}
.sheet-meta{display:grid;grid-template-columns:repeat(4,1fr);gap:8px 16px;font-size:13px;margin-bottom:16px}
.sheet-meta .k{color:var(--muted);font-size:11px}
.sheet-meta .v{font-weight:600;word-break:break-all}
table.sheet-tbl{width:100%;border-collapse:collapse;font-size:12px}
table.sheet-tbl th,table.sheet-tbl td{border:1px solid #9aa5b1;padding:6px 8px;text-align:left}
table.sheet-tbl th{background:#f0f3f7;font-weight:600}
table.sheet-tbl td.num{text-align:right;font-variant-numeric:tabular-nums}
.sheet-sign{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:36px;font-size:12px}
.sheet-sign>div{border-top:1px solid #333;padding-top:8px}

/* 响应式 */
@media (max-width:900px){
  .sidebar{width:64px;flex:0 0 64px;padding:12px 8px}
  .brand{font-size:0;padding:6px 4px 14px}
  .brand small{display:none}
  .nav-group{display:none}
  .nav-item{font-size:0;padding:10px 6px;text-align:center}
  .nav-item::first-letter{font-size:16px}
  .sidebar-foot{display:none}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:640px){
  .content{padding:12px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .topbar{padding:10px 12px}
  .btn{min-height:44px;padding:10px 14px}
  input[type=text],input[type=password],input[type=date],input[type=time],input[type=number],select{min-height:44px}
  .tbl-wrap{overflow-x:auto}
  table.tbl th,table.tbl td{padding:8px 6px}
  /* 明细表在手机上转「一行一卡」 */
  .mobile-cards .tbl-wrap{display:none}
  .mobile-cards .mcard{display:block}
  .mcard{display:none;border:1px solid var(--line);border-radius:8px;padding:12px;margin-bottom:10px;background:#fff}
  .mcard .mline{display:flex;justify-content:space-between;gap:10px;padding:4px 0;border-bottom:1px dashed #eef1f5}
  .mcard .mline:last-child{border-bottom:0}
  .mcard .mline .k{color:var(--muted);font-size:12px;flex:0 0 90px}
  .mcard .mline .v{flex:1;text-align:right;font-variant-numeric:tabular-nums}
}

@media print{
  @page{size:A4 landscape;margin:10mm}
  body{background:#fff;font-size:11px;-webkit-print-color-adjust:exact;print-color-adjust:exact}
  .no-print,.sidebar,.topbar,.btn-bar,.alert{display:none !important}
  .layout,.main,.content{display:block;padding:0;margin:0}
  .sheet{border:0;box-shadow:none;padding:0;max-width:none}
  .card{border:0;box-shadow:none;padding:0;margin:0}
  table.sheet-tbl th{background:#eee !important}
}