:root { --plava: #1f4e79; --tamna: #16324a; --svijetla: #eef3f8; --rub: #c9d4df; --crvena: #b42318; --zelena: #18794e; }
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.45 "Segoe UI", Arial, sans-serif; color: #1d2733; background: #f5f7fa; }
.traka { display: flex; justify-content: space-between; align-items: stretch; background: var(--tamna); color: #fff; position: sticky; top: 0; z-index: 10; }
.izbornik { display: flex; align-items: center; flex-wrap: wrap; }
.izbornik .logo { color: #fff; font-weight: 700; letter-spacing: 2px; padding: 0 18px; text-decoration: none; }
.izbornik details { position: relative; }
.izbornik summary { list-style: none; cursor: pointer; padding: 16px 14px; }
.izbornik summary::-webkit-details-marker { display: none; }
.izbornik details[open] summary, .izbornik summary:hover { background: var(--plava); }
.izbornik details > div { position: absolute; left: 0; top: 100%; background: #fff; min-width: 240px; box-shadow: 0 6px 18px rgba(0,0,0,.18); border: 1px solid var(--rub); }
.izbornik details > div a, .izbornik details > div button.link { display: block; width: 100%; text-align: left; padding: 9px 16px; color: #1d2733; text-decoration: none; background: none; border: 0; font: inherit; cursor: pointer; }
.izbornik details > div a:hover, .izbornik details > div button.link:hover { background: var(--svijetla); }
.vaga-prikaz { display: flex; align-items: center; gap: 14px; padding: 6px 18px; background: #0b1b29; min-width: 360px; justify-content: flex-end; }
.vaga-prikaz .masa { font: 700 30px/1 Consolas, "Courier New", monospace; color: #7CFC8A; }
.vaga-prikaz.nemirna .masa { color: #ffd166; }
.vaga-prikaz.nije .masa { color: #889; }
.vaga-prikaz .poruka { color: #ff8a80; font-weight: 600; max-width: 260px; }
main { max-width: 1250px; margin: 24px auto; padding: 0 20px; }
h1 { font-size: 24px; margin: 0 0 14px; }
h2 { font-size: 18px; margin: 0 0 10px; }
section, .kartica { background: #fff; border: 1px solid var(--rub); border-radius: 6px; padding: 18px 20px; margin-bottom: 18px; }
.obavijest { padding: 10px 14px; background: #e3f1e9; border-left: 4px solid var(--zelena); }
.obavijest.greska { background: #fdecea; border-left-color: var(--crvena); font-weight: 600; }
.polja { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 10px 16px; }
label { display: block; font-size: 13px; font-weight: 600; color: #3a4a5c; }
input, select, textarea { display: block; width: 100%; margin-top: 4px; padding: 8px 10px; font: inherit; border: 1px solid #aebccb; border-radius: 4px; background: #fff; }
input:focus, select:focus { outline: 2px solid #7aa7d6; border-color: var(--plava); }
label.check { display: flex; gap: 8px; align-items: center; }
label.check input { width: auto; margin: 0; }
button, .gumb { display: inline-block; padding: 9px 16px; border: 0; border-radius: 4px; background: var(--plava); color: #fff; font: 600 14px "Segoe UI", Arial; cursor: pointer; text-decoration: none; }
button.sporedni, .gumb.sporedni { background: #e4ebf2; color: var(--tamna); }
button.opasno { background: var(--crvena); }
button:disabled { background: #a9b6c3; cursor: not-allowed; }
.gumbi { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-top: 14px; }
.izbor-vaganja { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 12px; }
.izbor-vaganja a { display: block; padding: 22px 16px; background: #fff; border: 1px solid var(--rub); border-radius: 6px; text-decoration: none; color: var(--tamna); font-weight: 700; font-size: 17px; }
.izbor-vaganja a:hover { border-color: var(--plava); box-shadow: 0 2px 8px rgba(31,78,121,.18); }
.izbor-vaganja small { display: block; font-weight: 400; color: #5b6b7c; font-size: 13px; margin-top: 4px; }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
th, td { padding: 6px 8px; border-bottom: 1px solid #e3e9ef; text-align: left; white-space: nowrap; }
th { background: var(--svijetla); position: sticky; top: 0; }
td.br, th.br { text-align: right; }
tr.storno td { color: var(--crvena); }
tr.odabran td { background: #fff5d6; }
.tablica { max-height: 60vh; overflow: auto; border: 1px solid var(--rub); }
.zbroj { font-size: 16px; }
.zbroj b { font-size: 18px; }
.oznaka { font-size: 12px; padding: 2px 7px; border-radius: 10px; background: #e4ebf2; }
.oznaka.crvena { background: #fdecea; color: var(--crvena); }
.masa-veliko { font: 700 22px Consolas, monospace; }
.dvostupac { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
iframe.pdf { width: 100%; height: 70vh; border: 1px solid var(--rub); background: #fff; }
.muted { color: #5b6b7c; }
pre { background: #0b1b29; color: #cfe; padding: 10px; overflow: auto; max-height: 300px; font-size: 13px; }
@media (max-width: 900px) { .dvostupac { grid-template-columns: 1fr; } .vaga-prikaz { min-width: 0; } }