* { box-sizing: border-box; }

:root {
  --bg:#f4f6f9; --panel:#fff; --sidebar:#111827; --sidebar-soft:#1f2937;
  --text:#111827; --muted:#6b7280; --line:#e5e7eb; --primary:#2563eb;
  --primary-dark:#1d4ed8; --danger:#dc2626; --radius:16px;
  --shadow:0 8px 28px rgba(17,24,39,.06);
}

body {
  margin:0; min-width:1180px;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  background:var(--bg); color:var(--text);
}

button,input,select,textarea{font:inherit}
button{cursor:pointer}

.app-shell{display:grid;grid-template-columns:248px 1fr;min-height:100vh}
.sidebar{
  background:var(--sidebar);color:#fff;padding:28px 18px 22px;display:flex;flex-direction:column;
  position:fixed;inset:0 auto 0 0;width:248px
}
.brand{display:flex;align-items:center;gap:12px;padding:0 8px 28px;border-bottom:1px solid rgba(255,255,255,.08)}
.brand-mark{
  width:44px;height:44px;display:grid;place-items:center;border-radius:12px;background:var(--primary);
  font-size:23px;font-weight:900;box-shadow:0 8px 20px rgba(37,99,235,.25)
}
.brand h1{margin:0;font-size:16px;letter-spacing:.7px}
.brand span{color:#94a3b8;font-size:12px;letter-spacing:2.8px}
.nav{display:flex;flex-direction:column;gap:6px;margin-top:26px}
.nav-item{
  border:0;background:transparent;color:#cbd5e1;text-align:left;padding:13px 14px;border-radius:10px;
  font-weight:650;display:flex;align-items:center;gap:11px
}
.nav-item:hover,.nav-item.active{background:var(--sidebar-soft);color:white}
.nav-item.active{box-shadow:inset 3px 0 0 var(--primary)}
.sidebar-footer{margin-top:auto}
.mini-card{padding:14px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);border-radius:12px;display:grid;gap:4px}
.mini-card span{color:#94a3b8;font-size:11px}

.main{grid-column:2;padding:34px 38px 50px}
.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px}
.eyebrow{margin:0 0 5px;color:var(--primary);font-size:11px;font-weight:800;letter-spacing:1.5px}
.topbar h2{margin:0;font-size:29px}

.btn{border:0;border-radius:10px;padding:11px 17px;font-weight:750}
.btn-primary{background:var(--primary);color:white;box-shadow:0 6px 16px rgba(37,99,235,.2)}
.btn-primary:hover{background:var(--primary-dark)}
.btn-secondary{background:#eef2f7;color:#374151}
.btn-danger{background:#fee2e2;color:#b91c1c}
.btn-small{padding:8px 12px;font-size:12px}

.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:22px}
.stat-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px;
  box-shadow:var(--shadow);display:flex;gap:16px;align-items:center
}
.stat-icon{width:48px;height:48px;border-radius:13px;background:#eff6ff;display:grid;place-items:center;font-size:20px}
.stat-card span{color:var(--muted);font-size:13px}
.stat-card strong{display:block;margin-top:3px;font-size:28px}

.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.panel-head{padding:21px 22px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line)}
.panel-head.compact{padding:16px 18px}
.panel-head h3{margin:0 0 4px;font-size:17px}
.panel-head p{margin:0;color:var(--muted);font-size:13px}
.link-btn{border:0;background:transparent;color:var(--primary);font-weight:750}

.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse}
th{
  padding:12px 18px;text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.6px;
  color:#6b7280;background:#fafafa;border-bottom:1px solid var(--line)
}
td{padding:15px 18px;border-bottom:1px solid #f0f2f5;font-size:13px;vertical-align:middle}
tr:last-child td{border-bottom:0}
tbody tr:hover{background:#fafcff}
.vehicle-cell strong{display:block;font-size:14px}
.vehicle-cell span,.subtle,.muted{color:var(--muted);font-size:12px}
.badge{display:inline-flex;align-items:center;border-radius:999px;padding:5px 9px;font-size:11px;font-weight:750;background:#f3f4f6}
.badge-neutral{background:#eef2f7;color:#475569}
.status-waiting{background:#fff7ed;color:#c2410c}
.status-in-progress{background:#eff6ff;color:#1d4ed8}
.status-waiting-for-parts{background:#f5f3ff;color:#6d28d9}
.status-ready{background:#ecfdf5;color:#047857}
.status-completed{background:#f3f4f6;color:#374151}
.priority-normal{color:#475569}
.priority-high{color:#b45309;font-weight:750}
.priority-urgent{color:#b91c1c;font-weight:800}
.row-action{border:1px solid var(--line);background:white;border-radius:8px;padding:7px 10px;font-weight:700}

.toolbar{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-bottom:16px}
.search-box{flex:1;max-width:620px;background:#fff;border:1px solid var(--line);border-radius:11px;height:44px;display:flex;align-items:center;gap:9px;padding:0 13px}
.search-box input{border:0;outline:0;width:100%}
.toolbar select{min-width:190px;height:44px;border:1px solid var(--line);border-radius:11px;background:#fff;padding:0 12px;outline:none}
.view{display:none}
.view.active{display:block}
.empty{text-align:center;color:var(--muted);padding:42px 20px}

.detail-actions{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
.detail-actions-right{display:flex;gap:10px}
.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.vehicle-hero{grid-column:span 2;padding:24px;display:flex;justify-content:space-between;align-items:center}
.vehicle-hero h3{margin:0 0 6px;font-size:28px}
.hero-badges{display:flex;gap:8px}
.info-card .info-list{padding:8px 18px 18px}
.info-list{display:grid;gap:12px}
.info-list.two-col{grid-template-columns:1fr 1fr}
.info-list div{display:flex;justify-content:space-between;gap:16px;padding:10px 0;border-bottom:1px solid #f0f2f5}
.info-list div:last-child{border-bottom:0}
.info-list span{color:var(--muted);font-size:12px}
.info-list strong{font-size:13px;text-align:right}
.detail-wide{grid-column:span 2}
.problem-box{padding:20px}
.problem-box strong{font-size:16px}
.problem-box p{margin:9px 0 0;line-height:1.6;font-size:13px}
.cost-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.cost-card{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:20px}
.cost-card span{color:var(--muted);font-size:12px}
.cost-card strong{display:block;font-size:26px;margin-top:4px}
.cost-card.total{background:#111827;color:white;border-color:#111827}
.cost-card.total span{color:#cbd5e1}

.modal-backdrop{position:fixed;inset:0;background:rgba(15,23,42,.55);backdrop-filter:blur(3px);display:grid;place-items:center;padding:24px;z-index:50}
.modal-backdrop.hidden{display:none}
.modal{width:min(920px,calc(100vw - 80px));max-height:calc(100vh - 50px);overflow-y:auto;background:#fff;border-radius:18px;box-shadow:0 30px 80px rgba(0,0,0,.25)}
.modal-head{position:sticky;top:0;z-index:2;background:white;display:flex;justify-content:space-between;align-items:center;padding:20px 24px;border-bottom:1px solid var(--line)}
.modal-head h3{margin:0;font-size:22px}
.icon-btn{width:38px;height:38px;border:0;background:#f3f4f6;border-radius:9px;font-size:24px;line-height:1}
form{padding:22px 24px 24px}
.form-section{border-bottom:1px solid var(--line);padding-bottom:20px;margin-bottom:20px}
.form-section h4{margin:0 0 14px;font-size:14px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
label{color:#374151;font-size:12px;font-weight:700;display:grid;gap:7px}
label input,label select,label textarea{
  width:100%;border:1px solid #dce1e8;border-radius:9px;padding:10px 11px;outline:none;color:#111827;background:#fff;font-weight:500
}
label input:focus,label select:focus,label textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.08)}
textarea{resize:vertical}
.span-2{grid-column:span 2}
.modal-actions{display:flex;justify-content:space-between;align-items:center}
.actions-right{margin-left:auto;display:flex;gap:10px}
.hidden{display:none!important}

.section-title-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.section-title-row h4{margin:0}
.parts-editor{display:grid;gap:10px}
.part-row{
  display:grid;grid-template-columns:2fr .6fr 1fr 1.2fr auto;gap:8px;align-items:end;
  padding:12px;border:1px solid var(--line);border-radius:12px;background:#fafafa
}
.part-row label{font-size:11px}
.remove-part{border:0;background:#fee2e2;color:#b91c1c;border-radius:8px;width:36px;height:38px;font-weight:900}

@media print {
  .sidebar,.topbar,.detail-actions{display:none!important}
  .main{grid-column:1;padding:0}
  body{min-width:0;background:white}
  .app-shell{display:block}
  .panel,.cost-card{box-shadow:none}
}


.inventory-summary{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:18px;
  margin-bottom:18px;
}
.inventory-kpi{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:20px 22px;
  box-shadow:var(--shadow);
}
.inventory-kpi span{color:var(--muted);font-size:12px;font-weight:650}
.inventory-kpi strong{display:block;margin-top:5px;font-size:25px}
.inventory-vin{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:12px;
}
.grade-pill{
  display:inline-flex;min-width:36px;justify-content:center;border-radius:999px;
  padding:5px 9px;background:#eef2ff;color:#4338ca;font-size:11px;font-weight:800;
}


.inventory-actions{
  display:flex;
  gap:7px;
  align-items:center;
  flex-wrap:wrap;
}
.inventory-actions .row-action{
  white-space:nowrap;
}
.row-action.service-action{
  background:#eff6ff;
  color:#1d4ed8;
  border-color:#bfdbfe;
}
.row-action.service-action:hover{
  background:#dbeafe;
}
.inventory-modal{
  width:min(760px,calc(100vw - 80px));
}


.auth-screen{
  min-height:100vh;
  display:grid;
  place-items:center;
  padding:32px;
  background:
    radial-gradient(circle at top left, rgba(37,99,235,.10), transparent 34%),
    #f4f6f9;
}
.auth-card{
  width:420px;
  max-width:100%;
  background:#fff;
  border:1px solid var(--line);
  border-radius:22px;
  box-shadow:0 24px 70px rgba(17,24,39,.12);
  padding:34px;
}
.auth-logo{
  width:54px;
  height:54px;
  display:grid;
  place-items:center;
  border-radius:15px;
  background:var(--primary);
  color:#fff;
  font-size:28px;
  font-weight:900;
  margin-bottom:20px;
}
.auth-card h1{
  margin:0;
  font-size:26px;
  letter-spacing:.4px;
}
.auth-subtitle{
  margin:5px 0 24px;
  color:var(--muted);
  font-size:14px;
}
.auth-form{
  padding:0;
  display:grid;
  gap:15px;
}
.auth-form label{
  font-size:12px;
}
.auth-submit{
  margin-top:4px;
  width:100%;
}
.auth-error{
  margin:2px 0 0;
  color:#b91c1c;
  background:#fef2f2;
  border:1px solid #fecaca;
  border-radius:9px;
  padding:10px 12px;
  font-size:12px;
  line-height:1.45;
}
.logout-btn{
  width:100%;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.06);
  color:#e5e7eb;
  border-radius:10px;
  padding:11px 13px;
  margin-bottom:10px;
  font-weight:700;
  text-align:left;
}
.logout-btn:hover{
  background:rgba(255,255,255,.10);
}


.mobile-header{
  display:none;
}

.mobile-card-list{
  display:none;
}

.mobile-menu-btn{
  border:0;
  background:#eef2f7;
  color:#111827;
  width:44px;
  height:44px;
  border-radius:10px;
  font-size:22px;
  font-weight:800;
}

.mobile-brand{
  display:flex;
  align-items:center;
  gap:10px;
}
.mobile-brand strong{
  display:block;
  font-size:14px;
}
.mobile-brand span{
  display:block;
  color:#6b7280;
  font-size:11px;
}
.mobile-brand-mark{
  width:38px;
  height:38px;
  border-radius:10px;
  font-size:20px;
}

.mobile-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  padding:15px;
  box-shadow:var(--shadow);
}
.mobile-card + .mobile-card{
  margin-top:12px;
}
.mobile-card-head{
  display:flex;
  justify-content:space-between;
  gap:12px;
  align-items:flex-start;
  margin-bottom:10px;
}
.mobile-card-title{
  min-width:0;
}
.mobile-card-title strong{
  display:block;
  font-size:16px;
  line-height:1.25;
}
.mobile-card-title span{
  display:block;
  color:var(--muted);
  font-size:12px;
  margin-top:3px;
  word-break:break-word;
}
.mobile-meta{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:10px;
  margin-top:12px;
}
.mobile-meta div{
  background:#f8fafc;
  border-radius:10px;
  padding:10px;
  min-width:0;
}
.mobile-meta span{
  display:block;
  color:var(--muted);
  font-size:10px;
  text-transform:uppercase;
  letter-spacing:.5px;
}
.mobile-meta strong{
  display:block;
  margin-top:3px;
  font-size:12px;
  word-break:break-word;
}
.mobile-card-actions{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
  margin-top:12px;
}
.mobile-card-actions .btn,
.mobile-card-actions .row-action{
  min-height:42px;
  flex:1 1 auto;
}

@media (max-width: 900px){
  body{
    min-width:0;
  }

  .app-shell{
    display:block;
    min-height:100vh;
  }

  .mobile-header{
    display:flex;
    position:sticky;
    top:0;
    z-index:35;
    justify-content:space-between;
    align-items:center;
    padding:12px 14px;
    background:#fff;
    border-bottom:1px solid var(--line);
  }

  .sidebar{
    position:fixed;
    top:0;
    left:0;
    bottom:0;
    width:280px;
    transform:translateX(-105%);
    transition:transform .22s ease;
    z-index:60;
    box-shadow:0 20px 50px rgba(0,0,0,.22);
  }

  .sidebar.mobile-open{
    transform:translateX(0);
  }

  .sidebar::after{
    content:"";
    position:fixed;
    inset:0;
    background:rgba(15,23,42,.38);
    opacity:0;
    pointer-events:none;
    transition:opacity .2s ease;
    z-index:-1;
  }

  .sidebar.mobile-open::after{
    opacity:1;
    pointer-events:auto;
  }

  .main{
    grid-column:auto;
    padding:18px 14px 32px;
  }

  .topbar{
    margin-bottom:18px;
    align-items:flex-start;
    gap:12px;
  }

  .topbar h2{
    font-size:24px;
  }

  .topbar .btn{
    min-height:44px;
  }

  .stats-grid{
    grid-template-columns:1fr 1fr;
    gap:12px;
  }

  .stat-card{
    padding:16px;
    gap:12px;
  }

  .stat-icon{
    width:42px;
    height:42px;
  }

  .stat-card strong{
    font-size:23px;
  }

  .toolbar{
    flex-direction:column;
    align-items:stretch;
  }

  .search-box{
    max-width:none;
    width:100%;
    height:46px;
  }

  .toolbar select{
    width:100%;
    min-width:0;
    height:46px;
  }

  .table-wrap{
    display:none;
  }

  .mobile-card-list{
    display:block;
    padding:14px;
  }

  .panel-head{
    padding:16px;
  }

  .detail-grid{
    grid-template-columns:1fr;
    gap:12px;
  }

  .vehicle-hero,
  .detail-wide{
    grid-column:auto;
  }

  .vehicle-hero{
    padding:18px;
    align-items:flex-start;
    gap:14px;
    flex-direction:column;
  }

  .vehicle-hero h3{
    font-size:22px;
  }

  .hero-badges{
    flex-wrap:wrap;
  }

  .detail-actions{
    flex-direction:column;
    align-items:stretch;
    gap:10px;
  }

  .detail-actions-right{
    display:grid;
    grid-template-columns:1fr 1fr;
  }

  .detail-actions .btn{
    min-height:44px;
  }

  .cost-grid{
    grid-template-columns:1fr;
    gap:10px;
  }

  .info-list.two-col{
    grid-template-columns:1fr;
  }

  .modal-backdrop{
    padding:0;
    align-items:start;
    overflow-y:auto;
  }

  .modal,
  .inventory-modal{
    width:100%;
    max-height:none;
    min-height:100%;
    border-radius:0;
  }

  .modal-head{
    padding:16px;
  }

  form{
    padding:16px;
  }

  .form-grid{
    grid-template-columns:1fr;
    gap:12px;
  }

  .span-2{
    grid-column:auto;
  }

  label input,
  label select,
  label textarea{
    font-size:16px;
    min-height:46px;
  }

  label textarea{
    min-height:120px;
  }

  .part-row{
    grid-template-columns:1fr;
    gap:10px;
  }

  .remove-part{
    width:100%;
    height:42px;
  }

  .modal-actions{
    flex-direction:column-reverse;
    align-items:stretch;
    gap:10px;
  }

  .actions-right{
    margin-left:0;
    display:grid;
    grid-template-columns:1fr 1fr;
  }

  .modal-actions > .btn{
    width:100%;
  }

  .inventory-summary{
    grid-template-columns:1fr;
    gap:10px;
  }

  .auth-screen{
    padding:18px;
  }

  .auth-card{
    width:100%;
    padding:24px 20px;
  }

  .auth-card h1{
    font-size:22px;
  }
}

@media (max-width: 520px){
  .stats-grid{
    grid-template-columns:1fr;
  }

  .topbar{
    flex-direction:column;
    align-items:stretch;
  }

  .topbar > .btn{
    width:100%;
  }

  .mobile-meta{
    grid-template-columns:1fr;
  }

  .detail-actions-right{
    grid-template-columns:1fr;
  }

  .actions-right{
    grid-template-columns:1fr;
  }
}