/* =========================================================
   智仓 · 出入库库存管理系统  —  样式表
   主题：浅色 / 商务蓝
   ========================================================= */

:root{
  --bg:#f4f6fb;
  --surface:#ffffff;
  --surface-2:#f8fafc;
  --surface-3:#f1f5f9;
  --border:#e4e9f2;
  --border-strong:#cbd5e1;

  --text:#0f172a;
  --text-2:#475569;
  --text-3:#8d9bb0;

  --primary:#2563eb;
  --primary-600:#1d4ed8;
  --primary-50:#eff5ff;
  --primary-ring:rgba(37,99,235,.18);

  --in:#0d9488;
  --in-50:#e7f7f4;
  --out:#ea580c;
  --out-50:#fef1e7;
  --warn:#dc2626;
  --warn-50:#fef2f2;
  --adj:#7c3aed;
  --adj-50:#f4f0ff;

  --shadow-sm:0 1px 2px rgba(15,23,42,.05);
  --shadow:0 4px 16px rgba(15,23,42,.06), 0 1px 3px rgba(15,23,42,.05);
  --shadow-lg:0 18px 48px rgba(15,23,42,.16);

  --radius:14px;
  --radius-sm:9px;
  --sidebar-w:242px;
  --topbar-h:68px;
  --tabbar-h:60px;
}

*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:14px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:none}
table{border-collapse:collapse;width:100%}
[hidden]{display:none !important}

/* ---------------- 布局 ---------------- */
.app{display:flex;min-height:100vh}

.sidebar{
  width:var(--sidebar-w);flex:0 0 var(--sidebar-w);
  background:var(--surface);
  border-right:1px solid var(--border);
  display:flex;flex-direction:column;
  position:sticky;top:0;height:100vh;
  z-index:40;
}
.brand{display:flex;align-items:center;gap:11px;padding:20px 18px 16px}
.brand__logo{
  width:40px;height:40px;flex:0 0 40px;border-radius:11px;
  background:linear-gradient(140deg,#3b82f6,#1d4ed8);
  color:#fff;font-weight:700;font-size:18px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 14px rgba(37,99,235,.28);
}
.brand__name{font-weight:700;font-size:16px;letter-spacing:.4px}
.brand__sub{font-size:11.5px;color:var(--text-3)}

.nav{display:flex;flex-direction:column;gap:2px;padding:6px 10px;overflow-y:auto;flex:1}
.nav__item{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:var(--radius-sm);
  color:var(--text-2);font-size:13.5px;font-weight:500;
  transition:background .15s,color .15s;text-align:left;width:100%;
}
.nav__item:hover{background:var(--surface-3);color:var(--text)}
.nav__item.is-active{background:var(--primary-50);color:var(--primary-600);font-weight:600}
.nav__ico{width:18px;text-align:center;font-size:13px;opacity:.85}

.sidebar__foot{padding:12px}
.foot-card{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px}
.foot-card__title{font-weight:600;font-size:13px;margin-bottom:2px;word-break:break-all}
.foot-card__line{font-size:11.5px;color:var(--text-3);margin-bottom:9px}

.main{flex:1;min-width:0;display:flex;flex-direction:column}

.topbar{
  height:var(--topbar-h);flex:0 0 var(--topbar-h);
  display:flex;align-items:center;gap:14px;
  padding:0 22px;background:rgba(255,255,255,.88);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
  position:sticky;top:0;z-index:30;
}
.topbar__title h1{font-size:17px;font-weight:650;letter-spacing:.2px}
.topbar__title p{font-size:12px;color:var(--text-3);margin-top:1px}
.topbar__actions{margin-left:auto;display:flex;align-items:center;gap:9px}
.menu-btn{display:none}

.search{position:relative;display:flex;align-items:center}
.search__ico{position:absolute;left:10px;color:var(--text-3);font-size:15px;pointer-events:none}
.search input{
  width:230px;height:36px;padding:0 12px 0 30px;
  border:1px solid var(--border);border-radius:9px;
  background:var(--surface-2);outline:none;font-size:13px;
  transition:border-color .15s,box-shadow .15s,background .15s;
}
.search input:focus{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px var(--primary-ring)}

.content{padding:20px 22px 28px;flex:1}
.view{display:none;animation:fade .22s ease}
.view.is-active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* ---------------- 卡片 ---------------- */
.card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);box-shadow:var(--shadow-sm);
  overflow:hidden;
}
.card + .card{margin-top:0}
.card__head{
  display:flex;align-items:center;gap:10px;
  padding:14px 16px;border-bottom:1px solid var(--border);
  background:linear-gradient(180deg,#fff,#fcfdff);
  flex-wrap:wrap;
}
.card__title{font-size:14.5px;font-weight:650;display:flex;align-items:baseline;gap:9px;flex-wrap:wrap}
.card__note{font-size:11.5px;font-weight:400;color:var(--text-3)}
.card__tools{margin-left:auto;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.card__body{padding:16px}
.card__body--flush{padding:0}

.grid{display:grid;gap:16px;margin-bottom:16px}
.grid--2{grid-template-columns:1fr 1fr}
.grid--form{grid-template-columns:minmax(0,420px) minmax(0,1fr)}

/* ---------------- 统计卡 ---------------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:16px}
.stat{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:15px 16px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden;
}
.stat::after{content:"";position:absolute;right:-24px;top:-24px;width:76px;height:76px;border-radius:50%;background:var(--primary-50);opacity:.7}
.stat__label{font-size:12px;color:var(--text-2);position:relative;z-index:1}
.stat__value{font-size:25px;font-weight:700;margin-top:5px;letter-spacing:-.4px;position:relative;z-index:1}
.stat__unit{font-size:12.5px;font-weight:500;color:var(--text-3);margin-left:3px}
.stat__foot{font-size:11.5px;color:var(--text-3);margin-top:5px;position:relative;z-index:1}
.stat--warn::after{background:var(--warn-50)}
.stat--in::after{background:var(--in-50)}
.stat--out::after{background:var(--out-50)}

/* ---------------- 列表 ---------------- */
.list{display:flex;flex-direction:column}
.list--pad{padding:6px 0}
.row{
  display:flex;align-items:center;gap:11px;
  padding:10px 16px;border-bottom:1px solid var(--surface-3);
  font-size:13px;
}
.list--pad .row:last-child{border-bottom:none}
.row:last-child{border-bottom:none}
.row__main{flex:1;min-width:0}
.row__title{font-weight:600;font-size:13px;display:flex;align-items:center;gap:7px;flex-wrap:wrap}
.row__meta{font-size:11.5px;color:var(--text-3);margin-top:2px;display:flex;gap:10px;flex-wrap:wrap}
.row__value{font-weight:700;font-size:13.5px;white-space:nowrap}
.row__value--in{color:var(--in)}
.row__value--out{color:var(--out)}

.empty{padding:44px 20px;text-align:center;color:var(--text-3)}
.empty__ico{font-size:30px;opacity:.35;margin-bottom:8px}
.empty p{font-size:13px;margin-bottom:14px}

.muted{color:var(--text-2);font-size:12.8px;line-height:1.7}
.hint{font-size:11.5px;color:var(--text-3);margin-top:5px}
.warn-hint{color:#b45309;background:#fffbeb;border:1px solid #fde68a;border-radius:8px;padding:8px 10px;line-height:1.6}
.hr{border:none;border-top:1px solid var(--border);margin:14px 0}

.tips{margin:0;padding-left:18px;color:var(--text-2);font-size:12.8px;line-height:1.85}
.tips strong{color:var(--text)}
.stat-mini{margin-top:14px;padding-top:12px;border-top:1px dashed var(--border);font-size:12.5px;color:var(--text-2);display:flex;gap:16px;flex-wrap:wrap}

.btn-row{display:flex;gap:9px;flex-wrap:wrap;margin-top:12px}

/* ---------------- 按钮 ---------------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:36px;padding:0 15px;border-radius:9px;border:1px solid transparent;
  font-size:13px;font-weight:600;white-space:nowrap;
  transition:background .15s,border-color .15s,color .15s,box-shadow .15s,transform .08s;
}
.btn:active{transform:translateY(1px)}
.btn--primary{background:var(--primary);color:#fff;box-shadow:0 2px 8px rgba(37,99,235,.25)}
.btn--primary:hover{background:var(--primary-600)}
.btn--success{background:var(--in);color:#fff;box-shadow:0 2px 8px rgba(13,148,136,.25)}
.btn--success:hover{background:#0b7d72}
.btn--out{background:var(--out);color:#fff;box-shadow:0 2px 8px rgba(234,88,12,.25)}
.btn--out:hover{background:#d04d08}
.btn--outline{background:var(--surface);border-color:var(--border-strong);color:var(--text-2)}
.btn--outline:hover{border-color:var(--primary);color:var(--primary-600);background:var(--primary-50)}
.btn--ghost{background:transparent;color:var(--text-2);border-color:transparent}
.btn--ghost:hover{background:rgba(255,255,255,.6)}
.btn--danger{background:#fff;border-color:#fecaca;color:var(--warn)}
.btn--danger:hover{background:var(--warn-50);border-color:var(--warn)}
.btn--sm{height:32px;padding:0 12px;font-size:12.5px;border-radius:8px}
.btn--block{width:100%;height:40px}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}

.icon-btn{
  width:32px;height:32px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--text-2);font-size:15px;transition:background .15s,color .15s;
}
.icon-btn:hover{background:var(--surface-3);color:var(--text)}

.link-btn{font-size:12.5px;color:var(--primary);font-weight:600;padding:2px 4px;border-radius:6px}
.link-btn:hover{background:var(--primary-50)}
.link-btn--danger{color:var(--warn)}
.link-btn--danger:hover{background:var(--warn-50)}
.card__head .link-btn{margin-left:auto}

/* ---------------- 表单 ---------------- */
.form{display:flex;flex-direction:column;gap:13px}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:12.5px;font-weight:600;color:var(--text-2)}
.req{color:var(--warn)}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:13px}
.input{
  height:38px;padding:0 12px;border:1px solid var(--border-strong);border-radius:9px;
  background:#fff;outline:none;font-size:13.5px;width:100%;
  transition:border-color .15s,box-shadow .15s;
}
.input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-ring)}
.input::placeholder{color:#b6c1d1}
.input--sm{height:32px;font-size:12.5px;padding:0 10px;border-radius:8px;width:auto;min-width:130px}
.input--area{height:auto;min-height:78px;padding:9px 12px;resize:vertical;font-family:ui-monospace,Consolas,monospace;font-size:11.5px;line-height:1.6}
select.input{
  appearance:none;-webkit-appearance:none;cursor:pointer;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'><path d='M2 4.5L6 8.5L10 4.5' stroke='%238d9bb0' stroke-width='1.6' fill='none' stroke-linecap='round'/></svg>");
  background-repeat:no-repeat;background-position:right 11px center;padding-right:30px;
}
.check{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--text-2);cursor:pointer}
.check input{width:16px;height:16px;accent-color:var(--primary);cursor:pointer}
.form__actions{margin-top:4px}

/* ---------------- 表格 ---------------- */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.table{min-width:660px;font-size:13px}
.table--stock{min-width:1000px}
.table th{
  text-align:left;font-size:11.5px;font-weight:600;color:var(--text-3);
  text-transform:uppercase;letter-spacing:.4px;
  padding:11px 14px;background:var(--surface-2);
  border-bottom:1px solid var(--border);white-space:nowrap;
  position:sticky;top:0;z-index:2;
}
.table td{padding:11px 14px;border-bottom:1px solid var(--surface-3);vertical-align:middle}
.table tbody tr:hover{background:#fbfdff}
.table tbody tr:last-child td{border-bottom:1px solid var(--border)}
.table .num{text-align:right;font-variant-numeric:tabular-nums}
.table th.num{text-align:right}
.table .ops{text-align:right;width:1%;white-space:nowrap}
.table tfoot td{
  padding:12px 14px;font-weight:700;background:var(--surface-2);
  border-top:2px solid var(--border);font-size:13px;
}
.table tfoot .num{text-align:right;font-variant-numeric:tabular-nums}
.cell-title{font-weight:600}
.cell-sub{font-size:11.5px;color:var(--text-3);margin-top:1px}
.op-link{font-size:12.5px;color:var(--primary);font-weight:600;padding:3px 7px;border-radius:6px}
.op-link:hover{background:var(--primary-50)}
.op-link--danger{color:var(--warn)}
.op-link--danger:hover{background:var(--warn-50)}

/* ---------------- 标签 ---------------- */
.pill{
  display:inline-flex;align-items:center;height:22px;padding:0 9px;border-radius:99px;
  font-size:11.5px;font-weight:600;white-space:nowrap;
}
.pill--in{background:var(--in-50);color:var(--in)}
.pill--out{background:var(--out-50);color:var(--out)}
.pill--adj{background:var(--adj-50);color:var(--adj)}
.pill--warn{background:var(--warn-50);color:var(--warn)}
.pill--ok{background:var(--in-50);color:var(--in)}
.pill--zero{background:var(--surface-3);color:var(--text-3)}

.tag{display:inline-flex;align-items:center;gap:5px;font-size:11.5px;color:var(--text-3)}
.dot{width:8px;height:8px;border-radius:50%;display:inline-block}
.dot--in{background:var(--in)}
.dot--out{background:var(--out)}
.legend{display:flex;gap:14px;font-size:11.5px;color:var(--text-2)}
.legend__item{display:flex;align-items:center;gap:6px}

/* ---------------- 图表 ---------------- */
.chart{width:100%;overflow:hidden}
.chart svg{display:block;width:100%;height:auto}
.bar-in{fill:var(--in)}
.bar-out{fill:var(--out)}
.axis-text{font-size:9.5px;fill:#94a3b8}
.grid-line{stroke:#eef2f7;stroke-width:1}

/* ---------------- 弹窗 ---------------- */
.modal{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;padding:16px}
.modal__mask{position:absolute;inset:0;background:rgba(15,23,42,.42);backdrop-filter:blur(2px)}
.modal__panel{
  position:relative;background:#fff;border-radius:16px;box-shadow:var(--shadow-lg);
  width:100%;max-width:520px;max-height:92vh;overflow:auto;
  animation:pop .2s cubic-bezier(.2,.9,.3,1.2);
}
.modal__panel--sm{max-width:400px}
@keyframes pop{from{opacity:0;transform:scale(.96) translateY(8px)}to{opacity:1;transform:none}}
.modal__head{display:flex;align-items:center;padding:16px 18px;border-bottom:1px solid var(--border)}
.modal__head h3{font-size:15px;font-weight:650;flex:1;min-width:0}
.modal__body{padding:18px}
.modal__foot{display:flex;justify-content:flex-end;gap:9px;padding-top:6px}

/* ---------------- 提示条 ---------------- */
.toast{
  position:fixed;left:50%;bottom:80px;transform:translateX(-50%);
  background:#0f172a;color:#fff;padding:10px 18px;border-radius:99px;
  font-size:13px;font-weight:500;z-index:200;box-shadow:0 10px 30px rgba(15,23,42,.3);
  animation:fade .2s ease;max-width:86vw;text-align:center;
}

/* ---------------- 快照横幅 ---------------- */
.snapshot-bar{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  background:linear-gradient(90deg,#7c3aed,#4f46e5);color:#fff;
  padding:9px 16px;font-size:12.5px;position:sticky;top:0;z-index:60;
}
.snapshot-bar__text{flex:1;min-width:150px}
.snapshot-bar .btn{color:#fff;border-color:rgba(255,255,255,.4)}
.snapshot-bar .btn:hover{background:rgba(255,255,255,.16)}

/* ---------------- 移动端底部导航 ---------------- */
.tabbar{
  display:none;position:fixed;left:0;right:0;bottom:0;height:var(--tabbar-h);
  background:rgba(255,255,255,.96);backdrop-filter:blur(10px);
  border-top:1px solid var(--border);z-index:50;
  padding-bottom:env(safe-area-inset-bottom);
}
.tabbar__item{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  font-size:10.5px;color:var(--text-3);font-weight:500;
}
.tabbar__item span{font-size:15px;line-height:1}
.tabbar__item.is-active{color:var(--primary);font-weight:600}

/* ---------------- 遮罩 ---------------- */
.backdrop{display:none;position:fixed;inset:0;background:rgba(15,23,42,.35);z-index:35}

/* =========================================================
   响应式
   ========================================================= */
@media (max-width:1180px){
  .grid--2{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:980px){
  .grid--form{grid-template-columns:1fr}
}
@media (max-width:860px){
  :root{--topbar-h:60px}
  .sidebar{
    position:fixed;left:0;top:0;bottom:0;height:100%;
    transform:translateX(-100%);transition:transform .25s ease;
    box-shadow:var(--shadow-lg);
  }
  .sidebar.is-open{transform:none}
  .backdrop.is-open{display:block}
  .menu-btn{display:inline-flex}
  .topbar{padding:0 14px;gap:10px}
  .topbar__title p{display:none}
  .topbar__actions{gap:7px}
  .search input{width:150px}
  .btn--quick-hide{display:none}
  .content{padding:14px 14px calc(var(--tabbar-h) + 22px)}
  .tabbar{display:flex}
  .stats{gap:10px}
  .stat{padding:12px 13px}
  .stat__value{font-size:21px}
  .grid{gap:12px;margin-bottom:12px}
  .card__body{padding:13px}
  .toast{bottom:76px}
}
@media (max-width:620px){
  .topbar__actions .btn{display:none}
  .search{flex:1}
  .search input{width:100%}
  .stats{grid-template-columns:1fr 1fr}
  .field-row{grid-template-columns:1fr;gap:13px}
  .card__tools{width:100%;margin-left:0}
  .card__tools .input--sm{flex:1;min-width:0}
  .modal{padding:0;align-items:flex-end}
  .modal__panel{border-radius:16px 16px 0 0;max-height:94vh}
  .snapshot-bar{padding:8px 12px;font-size:12px}
  .stat__value{font-size:19px}
}
@media (max-width:380px){
  .stats{grid-template-columns:1fr}
}

/* 打印 */
@media print{
  .sidebar,.topbar,.tabbar,.card__tools,.ops,.snapshot-bar{display:none !important}
  .content{padding:0}
  .card{box-shadow:none;border-color:#ddd}
  body{background:#fff}
}