:root{
  --teal-900:#173e47;
  --teal-800:#1e4e59;
  --teal-700:#27606f;
  --teal-600:#2f7383;
  --teal-100:#e3edef;
  --teal-050:#f2f7f8;
  --bg:#eef1f4;
  --card:#ffffff;
  --text:#1f2d33;
  --muted:#687b83;
  --border:#e1e7ea;
  --danger:#c0392b;
  --danger-bg:#fbeae8;
  --success:#2e8b57;
  --success-bg:#e8f5ee;
  --warning:#b8720a;
  --warning-bg:#fdf1e0;
  --radius:16px;
  --shadow:0 4px 16px rgba(23,62,71,.08);
  --shadow-lg:0 10px 30px rgba(23,62,71,.16);
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
}
a{color:inherit}
button{font-family:inherit}
img{max-width:100%;display:block}

/* ---------- layout shell ---------- */
.shell{display:flex;min-height:100vh}
.sidebar{
  width:230px;flex:none;background:var(--teal-800);color:#fff;
  display:flex;flex-direction:column;padding:20px 14px;gap:4px;
}
.sidebar .brand{display:flex;align-items:center;gap:10px;padding:6px 10px 22px;}
.sidebar .brand img{width:32px;height:32px;object-fit:contain;border-radius:9px;background:#fff;padding:3px;}
.sidebar .brand span{font-weight:700;font-size:19px;letter-spacing:.5px}
.navlink{
  display:flex;align-items:center;gap:12px;padding:9px 12px;border-radius:11px;
  color:rgba(255,255,255,.82);text-decoration:none;font-size:14.5px;font-weight:500;cursor:pointer;
  border:none;background:none;width:100%;text-align:left;
}
.navlink img{width:24px;height:24px;object-fit:contain;border-radius:7px;background:#fff;padding:2px;opacity:.96;flex:none}
.navlink:hover{background:rgba(255,255,255,.08);color:#fff}
.navlink.active{background:var(--teal-600);color:#fff}
.sidebar .spacer{flex:1}
.sidebar .logout{color:rgba(255,255,255,.65)}
.sidebar .logout:hover{color:#fff}

.main-col{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{
  height:64px;flex:none;background:var(--card);border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;padding:0 22px;position:sticky;top:0;z-index:20;
}
.topbar h1{font-size:17px;margin:0;font-weight:700;color:var(--teal-800)}
.topbar-right{display:flex;align-items:center;gap:14px}
.hamburger{display:none;background:none;border:none;font-size:22px;color:var(--teal-800);cursor:pointer}

.content{padding:22px;flex:1;min-width:0}

/* ---------- bell / notifications ---------- */
.bell-wrap{position:relative}
.bell-btn{
  background:var(--teal-050);border:1px solid var(--teal-100);width:38px;height:38px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;cursor:pointer;position:relative;
}
.bell-btn svg{width:19px;height:19px;stroke:var(--teal-700)}
.bell-badge{
  position:absolute;top:-6px;right:-6px;background:var(--danger);color:#fff;font-size:10.5px;font-weight:700;
  border-radius:20px;min-width:17px;height:17px;display:flex;align-items:center;justify-content:center;padding:0 4px;
}
.bell-dropdown{
  position:absolute;right:0;top:46px;width:340px;max-width:88vw;max-height:420px;overflow:auto;
  background:var(--card);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow-lg);z-index:50;
}
.bell-dropdown .bd-head{display:flex;justify-content:space-between;align-items:center;padding:12px 14px;border-bottom:1px solid var(--border)}
.bell-dropdown .bd-head strong{font-size:13.5px}
.bell-dropdown .bd-head button{background:none;border:none;color:var(--teal-700);font-size:12px;cursor:pointer;font-weight:600}
.notif-item{padding:11px 14px;border-bottom:1px solid var(--border);font-size:13px;cursor:pointer;display:flex;gap:8px}
.notif-item:last-child{border-bottom:none}
.notif-item.unread{background:var(--teal-050)}
.notif-dot{width:7px;height:7px;border-radius:50%;background:var(--teal-600);margin-top:5px;flex:none}
.notif-item.read .notif-dot{background:transparent}
.notif-text{flex:1}
.notif-time{color:var(--muted);font-size:11px;margin-top:2px}
.notif-empty{padding:26px 14px;text-align:center;color:var(--muted);font-size:13px}

/* user menu */
.user-chip{display:flex;align-items:center;gap:9px;cursor:pointer;padding:5px 8px 5px 5px;border-radius:11px}
.user-chip:hover{background:var(--teal-050)}
.avatar{width:30px;height:30px;border-radius:50%;background:var(--teal-700);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:12.5px}
.user-chip .uname{font-size:13px;font-weight:600;line-height:1.1}
.user-chip .urole{font-size:11px;color:var(--muted)}

/* ---------- cards / tiles ---------- */
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}
.grid-tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px;margin-bottom:22px}
.tile{
  background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;
  display:flex;flex-direction:column;gap:10px;
}
.tile .tile-top{display:flex;align-items:center;justify-content:space-between}
.tile .tile-icon{width:42px;height:42px;border-radius:12px;background:var(--teal-050);display:flex;align-items:center;justify-content:center}
.tile .tile-icon img{width:24px;height:24px;object-fit:contain}
.tile .tile-value{font-size:28px;font-weight:800;color:var(--teal-800)}
.tile .tile-label{font-size:12.5px;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.4px}
.tile.warn .tile-value{color:var(--danger)}

.section-title{display:flex;align-items:center;justify-content:space-between;margin:26px 0 12px}
.section-title h2{font-size:15px;margin:0;color:var(--teal-800);text-transform:uppercase;letter-spacing:.4px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:7px;justify-content:center;border:none;border-radius:11px;
  padding:10px 16px;font-size:13.5px;font-weight:700;cursor:pointer;background:var(--teal-700);color:#fff;
  transition:background .15s;
}
.btn:hover{background:var(--teal-800)}
.btn.secondary{background:var(--teal-050);color:var(--teal-800)}
.btn.secondary:hover{background:var(--teal-100)}
.btn.danger{background:var(--danger-bg);color:var(--danger)}
.btn.danger:hover{background:#f6d7d3}
.btn.ghost{background:transparent;color:var(--teal-700);padding:8px 10px}
.btn.ghost:hover{background:var(--teal-050)}
.btn.small{padding:7px 11px;font-size:12.5px;border-radius:9px}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn svg{width:15px;height:15px;flex:none}
.navlink svg{flex:none}

/* ---------- tables ---------- */
.table-wrap{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:13.5px;min-width:560px}
thead th{
  text-align:left;font-size:11.5px;text-transform:uppercase;letter-spacing:.4px;color:var(--muted);
  padding:12px 16px;border-bottom:1px solid var(--border);background:var(--teal-050);white-space:nowrap;
}
tbody td{padding:12px 16px;border-bottom:1px solid var(--border);vertical-align:middle}
tbody tr:last-child td{border-bottom:none}
tbody tr.clickable{cursor:pointer}
tbody tr.clickable:hover{background:var(--teal-050)}
.badge{display:inline-block;padding:3px 9px;border-radius:20px;font-size:11.5px;font-weight:700}
.badge.ok{background:var(--success-bg);color:var(--success)}
.badge.warn{background:var(--warning-bg);color:var(--warning)}
.badge.bad{background:var(--danger-bg);color:var(--danger)}
.badge.neutral{background:var(--teal-050);color:var(--teal-700)}
.muted{color:var(--muted)}
.row-actions{display:flex;gap:6px}
.empty-state{padding:40px 20px;text-align:center;color:var(--muted)}

/* ---------- forms ---------- */
.form-row{margin-bottom:14px}
.form-row label{display:block;font-size:12.5px;font-weight:700;color:var(--teal-800);margin-bottom:6px}
.form-row input,.form-row select,.form-row textarea{
  width:100%;padding:10px 12px;border:1.5px solid var(--border);border-radius:10px;font-size:14px;
  font-family:inherit;background:#fff;color:var(--text);
}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{outline:none;border-color:var(--teal-600)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}
.form-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}
.hint{font-size:12px;color:var(--muted);margin-top:6px}
.field-error{color:var(--danger);font-size:12px;margin-top:6px}

/* ---------- modal ---------- */
.modal-overlay{
  position:fixed;inset:0;background:rgba(23,45,51,.45);display:flex;align-items:center;justify-content:center;
  z-index:100;padding:18px;
}
.modal-box{background:#fff;border-radius:18px;box-shadow:var(--shadow-lg);width:100%;max-width:440px;padding:24px;max-height:90vh;overflow:auto}
.modal-box h3{margin:0 0 16px;font-size:17px;color:var(--teal-800)}
.modal-close{position:absolute}

/* ---------- toast ---------- */
#toast-root{position:fixed;bottom:20px;right:20px;z-index:200;display:flex;flex-direction:column;gap:10px}
.toast{
  background:var(--teal-800);color:#fff;padding:12px 18px;border-radius:11px;box-shadow:var(--shadow-lg);
  font-size:13.5px;font-weight:600;max-width:320px;animation:toast-in .18s ease-out;
}
.toast.error{background:var(--danger)}
.toast.success{background:var(--success)}
@keyframes toast-in{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* ---------- login ---------- */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;
  background:linear-gradient(160deg,var(--teal-900),var(--teal-700) 60%,var(--teal-600));}
.login-card{background:#fff;border-radius:22px;box-shadow:var(--shadow-lg);padding:38px 34px;width:100%;max-width:400px}
.login-card .logo{width:100%;max-width:230px;margin:0 auto 26px;display:block}
.login-card h2{text-align:center;font-size:16px;color:var(--muted);margin:0 0 24px;font-weight:600}
.login-error{background:var(--danger-bg);color:var(--danger);padding:10px 12px;border-radius:10px;font-size:13px;margin-bottom:14px}
.login-hint{margin-top:18px;font-size:12px;color:var(--muted);text-align:center;line-height:1.5}

/* ---------- kanban ---------- */
.kanban{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px;align-items:start}
.kcol{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);min-height:220px;display:flex;flex-direction:column}
.kcol-head{padding:15px 16px 12px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.kcol-head .kc-title{font-size:13px;font-weight:800;text-transform:uppercase;letter-spacing:.4px;color:var(--teal-800);display:flex;align-items:center;gap:8px}
.kcol-head .kc-count{background:var(--teal-050);color:var(--teal-700);font-size:11.5px;font-weight:700;padding:2px 9px;border-radius:20px}
.kcol-body{padding:12px;display:flex;flex-direction:column;gap:10px;min-height:120px;flex:1}
.kcol-body.dragover{background:var(--teal-050)}
.kcard{
  background:var(--teal-050);border:1.5px solid var(--teal-100);border-radius:12px;padding:11px 12px;cursor:grab;
  display:flex;flex-direction:column;gap:4px;
}
.kcard:active{cursor:grabbing}
.kcard .kc-index{font-weight:800;font-size:13.5px;color:var(--teal-800)}
.kcard .kc-desc{font-size:12px;color:var(--muted)}
.kcard .kc-qty{font-size:12px;font-weight:700;color:var(--teal-700);margin-top:2px}
.kcard .kc-below{color:var(--danger)}
.kcard .kc-actions{display:flex;gap:6px;margin-top:6px;flex-wrap:wrap}
.kcol-empty{color:var(--muted);font-size:12.5px;text-align:center;padding:20px 8px}

/* ---------- stock table in locker detail ---------- */
.min-input{width:64px;padding:6px 8px;border:1px solid var(--border);border-radius:8px;font-size:13px}

/* ---------- mobile ---------- */
.mobile-nav{display:none}
@media (max-width:900px){
  .sidebar{position:fixed;left:0;top:0;bottom:0;z-index:60;transform:translateX(-100%);transition:transform .2s;box-shadow:var(--shadow-lg)}
  .sidebar.open{transform:translateX(0)}
  .hamburger{display:block}
  .kanban{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .content{padding:14px}
  .sidebar-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.35);z-index:55}
}
@media (max-width:560px){
  .grid-tiles{grid-template-columns:repeat(2,1fr)}
  .bell-dropdown{position:fixed;right:10px;left:10px;width:auto;top:64px}
}