:root {
  --bg: #0f1115;
  --bg-panel: #171a21;
  --bg-card: #1c2029;
  --bg-hover: #232833;
  --border: #2a2f3a;
  --text: #e6e8ec;
  --text-sub: #9aa0ac;
  --text-dim: #6b7280;
  --accent: #d4922b;
  --accent-soft: #3a2c14;
  --blue: #4a90e2;
  --green: #35b37e;
  --red: #e2574a;
  --purple: #7f77dd;
  --radius: 10px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
}
#app { display: flex; height: 100vh; overflow: hidden; }

/* ---------- Sidebar ---------- */
.sidebar {
  width: 216px;
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  padding: 18px 18px 16px;
  border-bottom: 1px solid var(--border);
}
.logo {
  width: 36px; height: 36px; border-radius: 9px;
  background: var(--accent); color: #1a1206;
  display: flex; align-items: center; justify-content: center;
  font-size: 19px; font-weight: 700; flex-shrink: 0;
}
.brand-name { font-size: 14px; font-weight: 600; }
.brand-sub { font-size: 11px; color: var(--text-dim); margin-top: 2px; }
.nav { flex: 1; overflow-y: auto; padding: 8px 10px 20px; }
.nav-group {
  font-size: 11px; color: var(--text-dim);
  padding: 14px 10px 6px; letter-spacing: 0.5px;
}
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 11px; margin: 2px 0;
  border-radius: 8px; color: var(--text-sub);
  cursor: pointer; font-size: 13.5px; user-select: none;
  transition: background 0.12s, color 0.12s;
}
.nav-item:hover { background: var(--bg-hover); color: var(--text); }
.nav-item.active { background: var(--accent-soft); color: var(--accent); font-weight: 500; }
.ni { width: 18px; text-align: center; font-size: 14px; opacity: 0.9; }

/* ---------- Main ---------- */
.main { flex: 1; display: flex; flex-direction: column; overflow: hidden; }
.topbar {
  height: 56px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 26px; border-bottom: 1px solid var(--border);
  background: var(--bg-panel);
}
.page-title { font-size: 16px; font-weight: 600; }
.badge-env {
  font-size: 11px; color: var(--accent);
  background: var(--accent-soft); padding: 4px 10px; border-radius: 20px;
}
.content { flex: 1; overflow-y: auto; padding: 24px 26px 60px; }

/* ---------- Cards / KPI ---------- */
.kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 22px; }
.kpi {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px 18px;
}
.kpi-label { font-size: 12.5px; color: var(--text-sub); }
.kpi-val { font-size: 26px; font-weight: 600; margin-top: 8px; }
.kpi-val.sm { font-size: 20px; }
.kpi-sub { font-size: 11.5px; color: var(--text-dim); margin-top: 4px; }
.kpi-val.green { color: var(--green); }
.kpi-val.red { color: var(--red); }
.kpi-val.accent { color: var(--accent); }

.panel {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px 20px; margin-bottom: 18px;
}
.panel-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 14px;
}
.panel-title { font-size: 14.5px; font-weight: 600; }
.panel-title small { color: var(--text-dim); font-weight: 400; font-size: 12px; margin-left: 8px; }

/* ---------- Toolbar ---------- */
.toolbar { display: flex; gap: 10px; align-items: center; margin-bottom: 16px; flex-wrap: wrap; }
.toolbar .spacer { flex: 1; }

/* ---------- Buttons ---------- */
.btn {
  padding: 8px 15px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--bg-card); color: var(--text); cursor: pointer;
  font-size: 13px; transition: background 0.12s, border 0.12s;
}
.btn:hover { background: var(--bg-hover); }
.btn-primary { background: var(--accent); color: #1a1206; border-color: var(--accent); font-weight: 500; }
.btn-primary:hover { background: #e0a03d; }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-danger { color: var(--red); }
.btn-danger:hover { background: #2a1b18; }
.btn-ghost { background: transparent; }

/* ---------- Inputs ---------- */
input, select, textarea {
  padding: 8px 11px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--bg); color: var(--text); font-size: 13px; font-family: inherit;
  outline: none; transition: border 0.12s;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); }
input::placeholder { color: var(--text-dim); }
label { font-size: 12.5px; color: var(--text-sub); display: block; margin-bottom: 6px; }
.field { margin-bottom: 14px; }
.field-row { display: flex; gap: 12px; }
.field-row .field { flex: 1; }
.fld-hint { font-size: 12px; color: var(--text-dim); margin-top: 5px; line-height: 1.5; }
.fld-hint::before { content: "ℹ "; opacity: .55; }

/* ---------- Tabs（成本报表台）---------- */
.ca-tabs { display: flex; gap: 6px; margin-bottom: 16px; border-bottom: 1px solid var(--border); }
.ca-tab {
  padding: 9px 20px; font-size: 14px; cursor: pointer;
  background: transparent; border: none; color: var(--text-sub);
  border-bottom: 2px solid transparent; margin-bottom: -1px; transition: all .15s;
}
.ca-tab:hover { color: var(--text); }
.ca-tab.active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }

/* ---------- Table ---------- */
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border); }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
thead th {
  background: var(--bg-panel); color: var(--text-sub); font-weight: 500;
  text-align: left; padding: 11px 14px; white-space: nowrap;
  border-bottom: 1px solid var(--border); font-size: 12.5px;
}
tbody td { padding: 10px 14px; border-bottom: 1px solid var(--border); white-space: nowrap; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--bg-hover); }
.num { text-align: right; font-variant-numeric: tabular-nums; }
.mono { font-family: ui-monospace, "Cascadia Code", monospace; font-size: 12.5px; }

/* ---------- Tag ---------- */
.tag { font-size: 11.5px; padding: 3px 9px; border-radius: 20px; display: inline-block; }
.tag-gray { background: #262b35; color: var(--text-sub); }
.tag-green { background: #163528; color: var(--green); }
.tag-amber { background: var(--accent-soft); color: var(--accent); }
.tag-red { background: #2f1a17; color: var(--red); }
.tag-blue { background: #17293f; color: var(--blue); }

/* ---------- Modal ---------- */
.modal-mask {
  position: absolute; inset: 0; background: rgba(0,0,0,0.55);
  display: flex; align-items: flex-start; justify-content: center;
  padding-top: 7vh; z-index: 50;
}
.modal-mask[hidden] { display: none; }
.modal {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 14px; width: 560px; max-width: 92vw; max-height: 82vh;
  overflow-y: auto; padding: 22px 24px;
}
.modal.wide { width: 760px; }
.modal-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.modal-title { font-size: 16px; font-weight: 600; }
.modal-close { cursor: pointer; color: var(--text-dim); font-size: 20px; line-height: 1; }
.modal-close:hover { color: var(--text); }
.modal-foot { display: flex; justify-content: flex-end; gap: 10px; margin-top: 20px; }

/* ---------- Toast ---------- */
.toast {
  position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%);
  background: var(--bg-card); border: 1px solid var(--border);
  color: var(--text); padding: 11px 20px; border-radius: 10px;
  font-size: 13px; z-index: 100; box-shadow: 0 6px 24px rgba(0,0,0,0.4);
}
.toast.ok { border-color: var(--green); }
.toast.err { border-color: var(--red); }

/* ---------- Misc ---------- */
.empty { text-align: center; color: var(--text-dim); padding: 44px; font-size: 13px; }
.loading { text-align: center; color: var(--text-dim); padding: 44px; }
.row-actions { display: flex; gap: 6px; }
.bar-track { background: var(--bg); border-radius: 6px; height: 8px; overflow: hidden; width: 120px; display: inline-block; vertical-align: middle; }
.bar-fill { height: 100%; background: var(--accent); }
.hint { font-size: 12px; color: var(--text-dim); margin-top: 6px; line-height: 1.6; }
.items-mini td { padding: 7px 10px; font-size: 12.5px; }
.link { color: var(--accent); cursor: pointer; }
.link:hover { text-decoration: underline; }

/* ---------- 供应链总览流向图 ---------- */
.flow {
  display: flex; flex-wrap: wrap; align-items: stretch; gap: 10px;
  padding: 18px 14px; background: var(--bg-panel); border: 1px solid var(--border); border-radius: 12px;
}
.flow-node {
  flex: 1 1 150px; min-width: 150px; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 10px; padding: 16px 14px; text-align: center; display: flex; flex-direction: column; gap: 8px; align-items: center;
}
.flow-title { font-size: 13px; color: var(--text-sub); }
.flow-val { font-size: 26px; font-weight: 700; color: var(--accent); }
.flow-sub { font-size: 12px; color: var(--text-dim); }
.flow-arrow {
  flex: 0 0 auto; align-self: center; color: var(--text-dim); font-size: 13px; white-space: nowrap;
  padding: 6px 4px; min-width: 70px; text-align: center;
}

/* ---------- 成本计算预览 ---------- */
.calc-preview {
  background: var(--accent-soft); border: 1px solid var(--border); border-radius: 10px;
  padding: 12px 14px; line-height: 1.8; font-size: 13px;
}
.calc-preview .formula {
  display: inline-block; margin-top: 4px; color: var(--text-dim); font-size: 12px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
.formula { color: var(--text-dim); font-size: 12px; }

/* ---------- 来货标准化 ---------- */
.inc-explain { background: var(--bg-panel); border: 1px solid var(--border); border-left: 3px solid var(--accent); border-radius: 8px; padding: 10px 14px; margin: 12px 0; font-size: 12.5px; color: var(--text-sub); line-height: 1.7; }
.inc-explain b { color: var(--text); }
.inc-group-title { font-size: 13px; font-weight: 600; color: var(--text); margin: 16px 2px 8px; padding-bottom: 6px; border-bottom: 1px solid var(--border); }
.inc-group-title .muted { font-weight: 400; color: var(--text-dim); font-size: 12px; margin-left: 6px; }
.muted { color: var(--text-dim); }
.badge { display: inline-block; padding: 2px 8px; border-radius: 20px; font-size: 11.5px; font-weight: 500; }
.badge-ok { background: rgba(53,179,126,0.15); color: var(--green); }
.badge-warn { background: rgba(226,87,74,0.15); color: var(--red); }
.row-warn { background: rgba(226,87,74,0.06); }
.row-warn:hover { background: rgba(226,87,74,0.12); }

/* ---------- 可搜索下拉（searchable select） ---------- */
.ss { position: relative; display: inline-block; width: 100%; vertical-align: middle; }
.ss-input {
  width: 100%; padding: 8px 28px 8px 12px; font-size: 13px; line-height: 1.4;
  border: 1px solid var(--border); border-radius: 8px; background: var(--bg-card); color: var(--text);
  cursor: pointer; box-sizing: border-box;
  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 4l4 4 4-4' fill='none' stroke='%23999' stroke-width='1.6'/></svg>");
  background-repeat: no-repeat; background-position: right 10px center;
}
.ss-input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.ss-list {
  position: absolute; top: 100%; left: 0; right: 0; z-index: 60; margin-top: 4px;
  max-height: 280px; overflow-y: auto; background: var(--bg-card);
  border: 1px solid var(--border); border-radius: 8px; box-shadow: 0 10px 28px rgba(0,0,0,.22);
  padding: 4px 0;
}
.ss-opt { padding: 8px 12px; font-size: 13px; color: var(--text); cursor: pointer; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ss-opt:hover, .ss-opt.ss-hl { background: var(--accent-soft); }
.ss-opt.ss-cur { color: var(--accent); font-weight: 600; }
.ss-empty { padding: 8px 12px; font-size: 12.5px; color: var(--text-dim); }
.ss-hidden { display: none !important; }

/* 登录遮罩 */
.login-mask {
  position: fixed; inset: 0; z-index: 200; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #1f2a44 0%, #2c3e63 60%, #38507e 100%);
}
.login-mask[hidden] { display: none; }
.login-card {
  width: 360px; max-width: 92vw; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 14px; box-shadow: 0 18px 50px rgba(0,0,0,.35); padding: 26px 24px;
}
.login-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.login-brand .logo {
  width: 40px; height: 40px; border-radius: 10px; background: var(--accent); color: #fff;
  display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 20px;
}
.login-card .field { margin-bottom: 12px; }
.login-card .btn-primary { margin-top: 4px; }
.link { color: var(--accent); cursor: pointer; }
.link:hover { text-decoration: underline; }
.center { text-align: center; }
.user-chip { font-weight: 600; margin-right: 6px; }
code.code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 13px;
  background: var(--bg-2); padding: 2px 6px; border-radius: 5px; color: var(--accent);
}
.row-muted { color: var(--text-dim); }