:root {
  --bg: #f5f7fa;
  --surface: #ffffff;
  --surface2: #f8fafc;
  --surface3: #eef2f7;
  --border: #e2e8f0;
  --border2: #cbd5e1;
  --accent: #00a884;
  --accent2: #0066cc;
  --accent3: #e85d2c;
  --accent4: #8b5cf6;
  --text: #1e293b;
  --text2: #64748b;
  --text3: #94a3b8;
  --success: #059669;
  --warning: #d97706;
  --danger: #dc2626;
  --font: 'Segoe UI', 'Microsoft YaHei', system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--font); background: var(--bg); color: var(--text); min-height: 100vh; font-size: 14px; }
a { color: inherit; text-decoration: none; }

/* ─ LAYOUT ─ */
.app { display: flex; height: 100vh; }
.sidebar { width: 220px; min-width: 220px; background: var(--surface); border-right: 1px solid var(--border); display: flex; flex-direction: column; overflow: hidden; }
.nav { flex: 1; padding: 8px 10px; overflow-y: auto; }
.logo { padding: 22px 20px 18px; border-bottom: 1px solid var(--border); }
.logo-mark { font-size: 18px; font-weight: 700; letter-spacing: -0.5px; }
.logo-mark span { color: var(--accent); }
.logo-sub { font-size: 10px; color: var(--text3); font-family: var(--mono); letter-spacing: 2px; text-transform: uppercase; margin-top: 2px; }
.nav-label { font-size: 9px; letter-spacing: 2px; text-transform: uppercase; color: var(--text3); padding: 0 10px; margin: 10px 0 6px; font-family: var(--mono); }
.nav-item { display: flex; align-items: center; gap: 10px; padding: 9px 10px; border-radius: 8px; cursor: pointer; color: var(--text2); font-size: 13px; font-weight: 500; transition: all .15s; position: relative; margin-bottom: 2px; }
.nav-item:hover { background: var(--surface2); color: var(--text); }
.nav-item.active { background: rgba(0,168,132,.1); color: var(--accent); font-weight: 600; }
.nav-item.active::before { content: ''; position: absolute; left: 0; top: 50%; transform: translateY(-50%); width: 3px; height: 18px; background: var(--accent); border-radius: 0 2px 2px 0; }
.nav-icon { font-size: 16px; width: 20px; text-align: center; }
.nav-badge { margin-left: auto; background: var(--accent3); color: #fff; font-size: 9px; font-weight: 700; padding: 2px 6px; border-radius: 10px; font-family: var(--mono); }
.sidebar-footer { padding: 14px 16px; border-top: 1px solid var(--border); }
.user-card { display: flex; align-items: center; gap: 10px; }
.user-avatar { width: 32px; height: 32px; border-radius: 50%; background: linear-gradient(135deg, var(--accent), var(--accent2)); display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; color: #fff; flex-shrink: 0; }
.user-name { font-size: 12px; font-weight: 600; }
.user-role { font-size: 10px; color: var(--text3); }
.user-logout { font-size: 10px; color: var(--text3); margin-top: 2px; display: inline-block; }
.user-logout:hover { color: var(--danger); }
.lang-toggle { display: flex; margin: 10px 12px 0; background: var(--surface2); border-radius: 8px; padding: 3px; border: 1px solid var(--border); }
.lang-btn { flex: 1; text-align: center; padding: 5px 0; border-radius: 6px; font-size: 11px; font-weight: 600; color: var(--text3); }
.lang-btn.active { background: var(--accent); color: #fff; }

/* ─ MAIN ─ */
.main { flex: 1; overflow-y: auto; display: flex; flex-direction: column; }
.topbar { display: flex; align-items: center; padding: 16px 28px; border-bottom: 1px solid var(--border); background: var(--surface); gap: 16px; position: sticky; top: 0; z-index: 10; }
.topbar-title { font-size: 16px; font-weight: 600; }
.topbar-sub { font-size: 12px; color: var(--text3); }
.content { padding: 18px 22px; flex: 1; }
.ml-auto { margin-left: auto; }
.flex-center { display: flex; align-items: center; gap: 8px; }

/* ─ BUTTONS ─ */
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 8px 14px; border-radius: 8px; font-family: var(--font); font-size: 12px; font-weight: 600; cursor: pointer; border: 1px solid transparent; transition: all .15s; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #00c49a; }
.btn-ghost { background: transparent; color: var(--text2); border-color: var(--border); }
.btn-ghost:hover { background: var(--surface2); color: var(--text); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-success { background: var(--success); color: #fff; }
.btn-warning { background: var(--warning); color: #fff; }
.btn-sm { padding: 5px 10px; font-size: 11px; }
.btn-block { width: 100%; justify-content: center; }

/* ─ STATS ─ */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 20px; }
.stat-card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 18px; position: relative; overflow: hidden; }
.stat-card::after { content: ''; position: absolute; top: 0; right: 0; width: 80px; height: 80px; border-radius: 50%; opacity: .06; transform: translate(20px,-20px); }
.stat-card.c1::after { background: var(--accent); } .stat-card.c2::after { background: var(--accent2); }
.stat-card.c3::after { background: var(--accent3); } .stat-card.c4::after { background: var(--accent4); }
.stat-label { font-size: 11px; color: var(--text3); margin-bottom: 8px; font-family: var(--mono); letter-spacing: .5px; }
.stat-value { font-size: 24px; font-weight: 700; letter-spacing: -1px; margin-bottom: 6px; }
.stat-value.c1 { color: var(--accent); } .stat-value.c2 { color: var(--accent2); }
.stat-value.c3 { color: var(--accent3); } .stat-value.c4 { color: var(--accent4); }
.stat-sub { font-size: 11px; color: var(--text3); }

/* ─ CARDS / GRID ─ */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; margin-bottom: 16px; }
.card-header { display: flex; align-items: center; justify-content: space-between; padding: 14px 18px; border-bottom: 1px solid var(--border); }
.card-title { font-size: 13px; font-weight: 600; }
.card-body { padding: 16px 18px; }

/* ─ PAGE HEAD ─ */
.page-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.page-head h1 { font-size: 20px; }
.head-actions { display: flex; gap: 8px; align-items: center; }
.searchbar { display: flex; gap: 8px; margin-bottom: 14px; }
.searchbar input, .filter-select { max-width: 320px; }

/* ─ FUNNEL ─ */
.funnel-bars { display: flex; flex-direction: column; gap: 8px; }
.funnel-row { display: flex; align-items: center; gap: 12px; }
.funnel-label { font-size: 11px; color: var(--text2); width: 70px; flex-shrink: 0; }
.funnel-track { flex: 1; background: var(--surface3); border-radius: 4px; height: 28px; overflow: hidden; }
.funnel-fill { height: 100%; border-radius: 4px; display: flex; align-items: center; padding-left: 10px; font-size: 11px; font-weight: 600; color: #fff; }
.funnel-count { font-size: 11px; color: var(--text3); width: 30px; text-align: right; font-family: var(--mono); }

/* ─ TABLE ─ */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
thead th { text-align: left; padding: 10px 14px; font-size: 10px; font-weight: 600; color: var(--text3); letter-spacing: 1px; text-transform: uppercase; font-family: var(--mono); border-bottom: 1px solid var(--border); white-space: nowrap; }
tbody tr { border-bottom: 1px solid var(--border); transition: background .1s; }
tbody tr:last-child { border-bottom: none; }
tbody tr.clickable { cursor: pointer; }
tbody tr.clickable:hover { background: var(--surface2); }
tbody td { padding: 11px 14px; font-size: 12px; color: var(--text2); }
tbody td strong { color: var(--text); font-weight: 600; }
.right { text-align: right; }
.empty { text-align: center; padding: 40px; color: var(--text3); font-size: 13px; }
.empty-icon { font-size: 36px; margin-bottom: 10px; opacity: .4; }
code { font-family: var(--mono); font-size: 11px; background: var(--surface3); padding: 1px 6px; border-radius: 4px; }

/* ─ TAGS / AVATAR ─ */
.tag { display: inline-flex; align-items: center; padding: 3px 8px; border-radius: 20px; font-size: 10px; font-weight: 600; font-family: var(--mono); }
.tag-green { background: rgba(0,200,150,.12); color: var(--success); }
.tag-blue { background: rgba(0,153,255,.12); color: var(--accent2); }
.tag-orange { background: rgba(255,107,53,.12); color: var(--accent3); }
.tag-purple { background: rgba(168,85,247,.12); color: var(--accent4); }
.tag-gray { background: rgba(139,149,168,.12); color: var(--text3); }
.tag-red { background: rgba(220,38,38,.12); color: var(--danger); }
.avatar { width: 28px; height: 28px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: 700; color: #fff; flex-shrink: 0; }

/* ─ PIPELINE ─ */
.pipeline-board { display: flex; gap: 14px; overflow-x: auto; padding-bottom: 8px; align-items: flex-start; }
.pipeline-col { min-width: 240px; width: 240px; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; flex-shrink: 0; }
.pipeline-col-header { padding: 12px 14px; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 8px; }
.pipeline-col-dot { width: 8px; height: 8px; border-radius: 50%; }
.pipeline-col-name { font-size: 12px; font-weight: 600; flex: 1; }
.pipeline-col-count { font-size: 10px; font-family: var(--mono); color: var(--text3); background: var(--surface3); padding: 2px 7px; border-radius: 10px; }
.pipeline-cards { padding: 10px; display: flex; flex-direction: column; gap: 8px; min-height: 60px; }
.pipeline-card { background: var(--surface2); border: 1px solid var(--border); border-radius: 8px; padding: 12px; }
.pipeline-card-name { font-size: 12px; font-weight: 600; margin-bottom: 4px; }
.pipeline-card-company { font-size: 11px; color: var(--text3); margin-bottom: 8px; }
.pipeline-card-value { font-size: 13px; font-weight: 700; color: var(--accent); font-family: var(--mono); }
.pipeline-card-bottom { display: flex; align-items: center; justify-content: space-between; margin-top: 8px; }
.pipeline-card-date { font-size: 10px; color: var(--text3); font-family: var(--mono); }
.stage-move { display: flex; gap: 4px; margin-top: 8px; }
.stage-move form { display: inline; }
.stage-move button { font-size: 14px; line-height: 1; padding: 2px 6px; border: 1px solid var(--border); background: var(--surface); border-radius: 5px; cursor: pointer; color: var(--text2); }
.stage-move button:hover { background: var(--surface3); color: var(--text); }

/* ─ TASKS ─ */
.task-filters { display: flex; gap: 8px; margin-bottom: 14px; flex-wrap: wrap; }
.filter-btn { padding: 5px 12px; border-radius: 20px; font-size: 11px; font-weight: 500; cursor: pointer; border: 1px solid var(--border); background: transparent; color: var(--text2); }
.filter-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.task-list { display: flex; flex-direction: column; gap: 8px; }
.task-item { display: flex; align-items: center; gap: 12px; padding: 12px 16px; background: var(--surface); border: 1px solid var(--border); border-radius: 10px; }
.task-check { width: 18px; height: 18px; border-radius: 50%; border: 2px solid var(--border2); flex-shrink: 0; cursor: pointer; display: flex; align-items: center; justify-content: center; background: none; }
.task-check.done { background: var(--accent); border-color: var(--accent); color: #fff; font-size: 10px; }
.task-info { flex: 1; min-width: 0; }
.task-title { font-size: 13px; font-weight: 500; }
.task-title.done { text-decoration: line-through; color: var(--text3); }
.task-meta { font-size: 11px; color: var(--text3); margin-top: 2px; display: flex; gap: 12px; }
.task-priority { padding: 3px 8px; border-radius: 4px; font-size: 10px; font-weight: 600; font-family: var(--mono); }
.pri-high { background: rgba(220,38,38,.15); color: var(--danger); }
.pri-med { background: rgba(217,119,6,.15); color: var(--warning); }
.pri-low { background: rgba(0,200,150,.12); color: var(--success); }

/* ─ ORDER APPROVAL FLOW ─ */
.approval-flow { display: flex; align-items: center; gap: 6px; margin: 16px 0; }
.flow-step { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.flow-dot { width: 30px; height: 30px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; border: 2px solid var(--border); background: var(--surface3); color: var(--text3); }
.flow-dot.approved { background: rgba(0,200,150,.15); color: var(--success); border-color: var(--success); }
.flow-dot.rejected { background: rgba(220,38,38,.12); color: var(--danger); border-color: var(--danger); }
.flow-dot.active { background: rgba(217,119,6,.12); color: var(--warning); border-color: var(--warning); }
.flow-label { font-size: 9px; color: var(--text3); font-family: var(--mono); text-align: center; }
.flow-line { flex: 1; height: 2px; background: var(--border); margin-bottom: 14px; }
.flow-line.done { background: var(--success); }
.order-status-badge { padding: 3px 9px; border-radius: 20px; font-size: 10px; font-weight: 700; font-family: var(--mono); }
.status-draft { background: rgba(139,149,168,.12); color: var(--text3); }
.status-pending-sup { background: rgba(217,119,6,.12); color: var(--warning); }
.status-pending-mgr { background: rgba(0,153,255,.12); color: var(--accent2); }
.status-pending-wh { background: rgba(168,85,247,.12); color: var(--accent4); }
.status-approved { background: rgba(0,200,150,.12); color: var(--success); }
.status-rejected { background: rgba(220,38,38,.12); color: var(--danger); }

/* ─ INVENTORY ─ */
.inv-grid { display: flex; gap: 0; margin-bottom: 14px; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.inv-stat { flex: 1; padding: 14px 18px; border-right: 1px solid var(--border); }
.inv-stat:last-child { border-right: none; }
.inv-stat-label { font-size: 10px; color: var(--text3); font-family: var(--mono); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 4px; }
.inv-stat-val { font-size: 20px; font-weight: 700; }
.stock-low { color: var(--danger); font-weight: 700; }
.stock-ok { color: var(--success); }

/* ─ DETAIL ─ */
.detail { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.detail dt { color: var(--text3); font-size: 11px; font-family: var(--mono); }
.detail dd { margin-top: 3px; font-weight: 500; }
.notes { background: var(--surface2); border-radius: 8px; padding: 12px; color: var(--text2); margin-top: 12px; font-size: 12px; }
.muted { color: var(--text3); }
.total-row td { font-size: 14px; font-weight: 700; color: var(--text); border-top: 2px solid var(--border); }
tfoot td { padding: 8px 14px; }

/* ─ FORMS ─ */
.form-group { margin-bottom: 14px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
.form-label { font-size: 11px; font-weight: 600; color: var(--text2); margin-bottom: 6px; display: block; }
.form-input, .form-select, .form-textarea { width: 100%; background: var(--surface2); border: 1px solid var(--border); border-radius: 8px; padding: 9px 12px; font-family: var(--font); font-size: 13px; color: var(--text); outline: none; }
.form-input:focus, .form-select:focus, .form-textarea:focus { border-color: var(--accent); }
.form-textarea { resize: vertical; min-height: 70px; }
.form-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 18px; }

/* Searchable product combobox */
.combo-list { position: absolute; left: 0; right: 0; top: 100%; z-index: 30; background: var(--surface); border: 1px solid var(--border2); border-radius: 8px; box-shadow: 0 8px 24px rgba(16,24,40,.12); max-height: 260px; overflow-y: auto; display: none; margin-top: 2px; }
.combo-item { padding: 8px 11px; font-size: 12px; cursor: pointer; border-bottom: 1px solid var(--surface3); white-space: nowrap; }
.combo-item:last-child { border-bottom: none; }
.combo-item:hover, .combo-item.active { background: rgba(0,168,132,.12); color: var(--accent); }
.qty.over { border-color: var(--danger) !important; background: rgba(220,38,38,.06); }
.stock-warn { font-size: 10px; color: var(--danger); text-align: right; margin-top: 2px; min-height: 12px; }
.combo-item .st-out { color: var(--danger); font-weight: 700; }
.combo-item .st-low { color: var(--warning); font-weight: 600; }
.reserved-note { font-size: 10px; color: var(--text3); }

/* ─ ALERTS ─ */
.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 14px; font-size: 13px; }
.alert-success { background: rgba(0,200,150,.12); color: var(--success); }
.alert-error { background: rgba(220,38,38,.12); color: var(--danger); }
.credit-alert { display: flex; align-items: center; gap: 12px; background: rgba(220,38,38,.08); border: 1px solid rgba(220,38,38,.2); border-radius: 10px; padding: 12px 16px; margin-bottom: 16px; font-size: 13px; color: var(--danger); }

/* ─ LOGIN ─ */
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: linear-gradient(135deg, #0f172a, #1e293b); }
.login-card { background: #fff; padding: 36px; border-radius: 14px; width: 370px; box-shadow: 0 20px 40px rgba(0,0,0,.25); }
.login-brand { text-align: center; margin-bottom: 22px; }
.login-brand .logo-mark { font-size: 24px; }
.login-brand p { color: var(--text3); font-size: 13px; margin-top: 4px; }
.login-card label { font-size: 11px; font-weight: 600; color: var(--text2); display: block; margin: 0 0 6px; }
.login-hint { text-align: center; color: var(--text3); font-size: 11px; margin-top: 16px; line-height: 1.6; }

@media print {
  .sidebar, .topbar, .head-actions, .no-print { display: none !important; }
  .main { overflow: visible; }
  body, .app { height: auto; }
}