:root {
    --bg: #f3f5f8; --card: #fff; --text: #1d2733; --muted: #6b7785; --border: #dde3ea;
    --primary: #0b5fff; --primary-dark: #0846c2; --danger: #c62828; --warn: #b26a00; --ok: #1b7f3b;
}
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.45 -apple-system, "Segoe UI", Roboto, Arial, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.6rem; margin: 0 0 .25rem; }
h2 { font-size: 1.15rem; margin: 0 0 .75rem; }
h3 { font-size: 1rem; margin: 1.1rem 0 .4rem; }
.muted { color: var(--muted); } .small { font-size: .85rem; } .center { text-align: center; }

/* top bar */
.topbar { display: flex; align-items: center; gap: 1.5rem; background: #14202e; color: #fff; padding: 0 1.25rem; min-height: 54px; flex-wrap: wrap; }
.topbar a { color: #cfd9e6; } .topbar a:hover { color: #fff; text-decoration: none; }
.brand { font-weight: 700; font-size: 1.1rem; color: #fff !important; }
.topbar nav { display: flex; gap: .25rem; flex: 1; flex-wrap: wrap; }
.topbar nav a { padding: .95rem .8rem; }
.topbar nav a.active { color: #fff; box-shadow: inset 0 -3px 0 var(--primary); }
.userbox { display: flex; align-items: center; gap: .75rem; font-size: .9rem; }

.container { max-width: 1180px; margin: 1.25rem auto; padding: 0 1rem 3rem; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 1.1rem 1.25rem; margin-bottom: 1.1rem; box-shadow: 0 1px 2px rgba(20,32,46,.04); }
.page-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; margin-bottom: 1rem; flex-wrap: wrap; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; align-items: start; }
@media (max-width: 900px) { .grid-2 { grid-template-columns: 1fr; } }
.row-2, .row-3 { display: grid; gap: 1rem; }
.row-2 { grid-template-columns: 1fr 1fr; } .row-3 { grid-template-columns: 1fr 1fr 1fr; }
@media (max-width: 700px) { .row-2, .row-3 { grid-template-columns: 1fr; } }

/* forms */
label { display: block; font-weight: 600; font-size: .9rem; }
label input, label select, label textarea { margin-top: .3rem; font-weight: 400; }
input[type=text], input[type=password], input[type=search], input[type=number], input[type=date], input:not([type]), select, textarea {
    width: 100%; padding: .55rem .65rem; border: 1px solid #c3ccd6; border-radius: 7px; font: inherit; background: #fff; color: var(--text); }
input:focus, select:focus, textarea:focus { outline: 2px solid rgba(11,95,255,.35); border-color: var(--primary); }
input:disabled, select:disabled { background: #eef1f5; color: var(--muted); }
input[type=file] { width: 100%; }
textarea { resize: vertical; }
.stack > * + * { margin-top: .9rem; }
fieldset { border: 1px solid var(--border); border-radius: 8px; padding: .9rem 1rem 1rem; }
legend { font-weight: 700; padding: 0 .4rem; }
.field-label { font-weight: 600; font-size: .9rem; margin: .9rem 0 .35rem; }
label.check { display: flex; gap: .5rem; align-items: center; font-weight: 400; }
label.check input { width: auto; margin: 0; }

/* buttons */
.btn { display: inline-block; padding: .5rem 1rem; border: 1px solid #c3ccd6; border-radius: 7px; background: #fff; color: var(--text); font: inherit; font-weight: 600; cursor: pointer; text-align: center; }
.btn:hover { background: #eef2f7; text-decoration: none; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-danger { background: #fff; border-color: var(--danger); color: var(--danger); }
.btn-danger:hover { background: var(--danger); color: #fff; }
.btn-small { padding: .25rem .6rem; font-size: .85rem; } .btn-lg { padding: .75rem 1.4rem; font-size: 1.05rem; }
.btn-block { display: block; width: 100%; } .btn-link { border: 0; background: none; color: var(--primary); }
.btn-row { display: flex; gap: .6rem; flex-wrap: wrap; align-items: center; }

/* alerts & badges */
.alert { padding: .7rem 1rem; border-radius: 8px; margin-bottom: 1rem; border: 1px solid; }
.alert-error { background: #fdecec; border-color: #f2b8b8; color: #8c1d1d; }
.alert-success { background: #e8f6ec; border-color: #b4dfc0; color: #165c2b; }
.alert-info { background: #e8f0fe; border-color: #b8cdf7; color: #123e8c; }
.alert-warn { background: #fff4e0; border-color: #f0cf91; color: #7a4a00; }
.badge { display: inline-block; padding: .1rem .55rem; border-radius: 999px; font-size: .75rem; font-weight: 700; background: #e9edf2; color: #3a4655; text-transform: capitalize; }
.role-admin { background: #ffe5e5; color: #a11; } .role-user { background: #e1ecff; color: #0b3fa8; }
.type-raw_material { background: #e8f1ff; color: #0b4bb3; } .type-finished_good { background: #e5f6ec; color: #17683a; }
.signal-danger { background: #d6001c; color: #fff; } .signal-warning { background: #ffb400; color: #3d2b00; }
.badge-on { background: #e5f6ec; color: #17683a; } .badge-off { background: #fdecec; color: #8c1d1d; }
.badge-current { background: #e1ecff; color: #0b3fa8; margin-left: .4rem; }

/* tables */
.table-wrap { padding: 0; overflow-x: auto; }
table.data { width: 100%; border-collapse: collapse; }
table.data th, table.data td { padding: .65rem .85rem; text-align: left; border-bottom: 1px solid var(--border); vertical-align: middle; }
table.data th { background: #f7f9fb; font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
table.data tr:last-child td { border-bottom: 0; }
table.data.compact th, table.data.compact td { padding: .45rem .5rem; }
.actions-col { white-space: nowrap; text-align: right !important; }
.filters { display: flex; gap: .6rem; flex-wrap: wrap; align-items: center; padding: .8rem 1rem; }
.filters input[type=search] { flex: 1; min-width: 220px; } .filters select { width: auto; }
.pager { display: flex; justify-content: center; align-items: center; gap: 1rem; }
.hazard-cell { display: flex; gap: .3rem; align-items: center; flex-wrap: wrap; }
.pict-mini { width: 26px; height: 26px; } .pict-med { width: 44px; height: 44px; }

dl.details { display: grid; grid-template-columns: 11rem 1fr; gap: .45rem 1rem; margin: 0; }
dl.details dt { color: var(--muted); font-weight: 600; } dl.details dd { margin: 0; }
.statements { background: #f7f9fb; border: 1px solid var(--border); border-radius: 8px; padding: .6rem .8rem; }
.danger-zone { border-color: #f2b8b8; }

/* permissions + pickers */
.perm-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: .5rem 1rem; margin-top: .6rem; }
.preset-row { display: flex; gap: .4rem; align-items: center; flex-wrap: wrap; font-size: .9rem; }
.pict-picker { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: .5rem; margin-bottom: 1rem; }
.pict-option { display: flex !important; align-items: center; gap: .5rem; border: 1px solid var(--border); border-radius: 8px; padding: .4rem .6rem; cursor: pointer; font-weight: 600; }
.pict-option:has(input:checked) { border-color: var(--primary); background: #eef4ff; }
.pict-option input { width: auto; margin: 0; } .pict-option small { font-weight: 400; color: var(--muted); }
.code-picker { margin-top: .5rem; }
.cp-list { max-height: 170px; overflow: auto; border: 1px solid var(--border); border-radius: 7px; margin-top: .3rem; font-size: .85rem; }
.cp-item { display: block; width: 100%; text-align: left; border: 0; border-bottom: 1px solid #eef1f5; background: #fff; padding: .3rem .6rem; cursor: pointer; font: inherit; }
.cp-item:hover { background: #eef4ff; } .cp-item.added { background: #e8f6ec; color: #165c2b; }
.cp-item b { display: inline-block; min-width: 4.5rem; }

/* login */
.login-page { display: flex; min-height: 100vh; align-items: center; justify-content: center; background: linear-gradient(160deg, #14202e, #1d3a5f); }
.login-box { width: min(420px, 92vw); padding: 1.75rem; }
.login-box h1 { margin-bottom: .1rem; } .login-box form > * + * { margin-top: 1rem; }

/* label setup page */
.sheet-picker { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; max-width: 360px; margin: 1rem 0 .5rem; padding: 14px; background: #eef1f5; border: 2px solid #c3ccd6; border-radius: 8px; }
.slot-btn { aspect-ratio: 4 / 3.33; border: 2px solid #9fb3cc; background: #fff; border-radius: 6px; cursor: pointer; display: flex; flex-direction: column; align-items: center; justify-content: center; font: inherit; }
.slot-btn .num { font-size: 1.8rem; font-weight: 800; } .slot-btn .tag { font-size: .75rem; text-transform: uppercase; letter-spacing: .06em; }
.slot-btn.used { background: #e3e6ea; border-style: dashed; color: #8a95a3; }
.slot-btn.will { background: #d9f2e0; border-color: #1b7f3b; color: #14572a; }
.slot-btn.free { background: #fff; color: #5b6978; }
.slot-btn:hover { outline: 3px solid rgba(11,95,255,.35); }
.summary { font-weight: 600; margin: 0; }
.preview-wrap { overflow: auto; padding: .5rem; background: #eef1f5; border-radius: 8px; }
.preview-wrap .lbl { border: 1px solid #aab4c0; box-shadow: 0 1px 4px rgba(0,0,0,.12); margin: 0 auto; }