:root{
  --crna:#0e1014; --tamna:#171a21; --crvena:#e2231a; --crvena-2:#b81910;
  --siva:#6b7280; --linija:#e6e9ef; --svijetlo:#f4f6f9;
}
*{box-sizing:border-box}
body{margin:0;background:var(--svijetlo);font-family:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:#1c2330}
a{color:var(--crvena);text-decoration:none}
a:hover{color:var(--crvena-2)}

.layout{display:flex;min-height:100vh}

/* Sidebar */
.sidebar{width:248px;flex:none;background:var(--crna);color:#cfd5df;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.sidebar__brand{display:flex;align-items:center;gap:12px;padding:20px 22px;border-bottom:1px solid #232833}
.logo-mark{width:40px;height:40px;border-radius:10px;background:var(--crvena);color:#fff;display:grid;place-items:center;font-weight:800;font-size:1.3rem;font-family:Oswald,sans-serif}
.sidebar__brand strong{color:#fff;display:block;letter-spacing:1px}
.sidebar__brand small{color:var(--siva);font-size:.78rem}
.sidebar__nav{display:flex;flex-direction:column;padding:14px 12px;gap:3px;flex:1}
.sidebar__nav a{display:flex;align-items:center;gap:11px;padding:11px 14px;border-radius:9px;color:#cfd5df;font-weight:500;font-size:.96rem}
.sidebar__nav a:hover{background:#1d2129;color:#fff}
.sidebar__nav a.is-active{background:var(--crvena);color:#fff}
.sidebar__nav .ico{font-size:1.05rem}
.sidebar__foot{padding:14px 18px;border-top:1px solid #232833}
.sidebar__foot .ext{color:var(--siva);font-size:.88rem}
.sidebar__foot .ext:hover{color:#fff}

/* Main */
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;background:#fff;border-bottom:1px solid var(--linija);padding:16px 26px;position:sticky;top:0;z-index:10}
.topbar h1{margin:0;font-size:1.35rem;font-weight:700}
.topbar__user{display:flex;align-items:center;gap:14px;color:var(--siva);font-size:.92rem}
.content{padding:26px;max-width:1280px;width:100%}

/* KPI kartice */
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:24px}
.kpi{background:#fff;border:1px solid var(--linija);border-radius:14px;padding:20px 22px;box-shadow:0 8px 24px rgba(13,18,28,.05)}
.kpi__lbl{color:var(--siva);font-size:.85rem;text-transform:uppercase;letter-spacing:.5px}
.kpi__val{font-size:1.9rem;font-weight:800;font-family:Oswald,sans-serif;margin-top:4px}
.kpi__val.red{color:var(--crvena)}
.kpi a{font-size:.85rem}

/* Kartice / tablice */
.card{border:1px solid var(--linija);border-radius:14px;box-shadow:0 8px 24px rgba(13,18,28,.05)}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:16px 20px;border-bottom:1px solid var(--linija)}
.card-head h2{margin:0;font-size:1.1rem}
.table thead th{background:#fafbfc;font-size:.82rem;text-transform:uppercase;letter-spacing:.4px;color:#55617a}
.table td,.table th{vertical-align:middle}
.muted{color:var(--siva)}
.right{text-align:right}
.nowrap{white-space:nowrap}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:18px}
.toolbar .search{flex:1;min-width:200px}
.btn-heca{background:var(--crvena);border-color:var(--crvena);color:#fff}
.btn-heca:hover{background:var(--crvena-2);border-color:var(--crvena-2);color:#fff}
.empty{padding:40px;text-align:center;color:var(--siva)}

/* Forme */
.form-section{background:#fff;border:1px solid var(--linija);border-radius:14px;padding:22px;box-shadow:0 8px 24px rgba(13,18,28,.05);margin-bottom:18px}
.form-section h3{font-size:1rem;margin:0 0 16px}
label.req::after{content:" *";color:var(--crvena)}

/* Stavke ponude */
.stavke td{padding:6px}
.stavke input,.stavke select{font-size:.92rem}
.totals{max-width:340px;margin-left:auto}
.totals .row-t{display:flex;justify-content:space-between;padding:6px 0}
.totals .row-t.total{border-top:2px solid var(--crna);font-weight:800;font-size:1.15rem;margin-top:6px;padding-top:10px}

@media(max-width:860px){
  .sidebar{position:fixed;left:-260px;z-index:100;transition:.2s}
  .sidebar.open{left:0}
  .kpi-grid{grid-template-columns:repeat(2,1fr)}
}