/* ── Yard Portal — industrial utility theme ─────────────────────────────
   Palette: asphalt #23272B / gravel #3A4046 / paper #F5F4F0
   high-vis amber #F5A623 / signal green #3E8E5A / flag red #C0392B     */
:root{
  --asphalt:#23272B; --gravel:#3A4046; --paper:#F5F4F0; --card:#FFFFFF;
  --amber:#F5A623; --green:#3E8E5A; --red:#C0392B; --blue:#2E6DA4;
  --ink:#22262A; --muted:#6B7178; --line:#DDD9D0;
  --mono:"IBM Plex Mono","SFMono-Regular",Consolas,monospace;
  --sans:"Inter","Segoe UI",system-ui,sans-serif;
}
*{box-sizing:border-box}
body{margin:0;font-family:var(--sans);background:var(--paper);color:var(--ink);font-size:15px}
a{color:var(--blue);text-decoration:none} a:hover{text-decoration:underline}

/* Header: dark bar with amber hazard tick */
header{background:var(--asphalt);color:#fff;border-bottom:4px solid var(--amber)}
.hwrap{max-width:1100px;margin:0 auto;padding:.6rem 1rem;display:flex;align-items:center;gap:1rem;flex-wrap:wrap}
.brand{font-weight:800;letter-spacing:.06em;text-transform:uppercase;font-size:.95rem}
.brand .tick{color:var(--amber)}
nav{display:flex;gap:.15rem;flex-wrap:wrap;margin-left:auto}
nav a{color:#CFD4D9;padding:.35rem .6rem;border-radius:4px;font-size:.85rem}
nav a:hover{background:var(--gravel);color:#fff;text-decoration:none}
nav a.active{background:var(--gravel);color:var(--amber)}

main{max-width:1100px;margin:1.2rem auto;padding:0 1rem}
h1{font-size:1.25rem;margin:.2rem 0 1rem} h2{font-size:1.02rem;margin:1.2rem 0 .5rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:1rem;margin-bottom:1rem}
.grid{display:grid;gap:1rem}
@media(min-width:760px){.grid.cols2{grid-template-columns:1fr 1fr}.grid.cols3{grid-template-columns:repeat(3,1fr)}.grid.cols4{grid-template-columns:repeat(4,1fr)}}

/* KPI tiles */
.kpi{border-left:4px solid var(--amber)}
.kpi .n{font-size:1.5rem;font-weight:800;font-family:var(--mono)}
.kpi .l{color:var(--muted);font-size:.78rem;text-transform:uppercase;letter-spacing:.05em}

table{width:100%;border-collapse:collapse;font-size:.88rem}
th{text-align:left;color:var(--muted);font-size:.72rem;text-transform:uppercase;letter-spacing:.06em;border-bottom:2px solid var(--line);padding:.4rem .5rem}
td{padding:.45rem .5rem;border-bottom:1px solid var(--line);vertical-align:top}
tr:hover td{background:#FAF9F5}

.code{font-family:var(--mono);font-size:.85em;background:#EFEDE7;padding:.05rem .35rem;border-radius:3px}
.badge{display:inline-block;font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;padding:.15rem .45rem;border-radius:3px;color:#fff}
.badge.green{background:var(--green)}.badge.amber{background:var(--amber);color:#3A2B00}
.badge.red{background:var(--red)}.badge.grey{background:#8A9096}.badge.blue{background:var(--blue)}

form.inline{display:inline}
label{display:block;font-size:.78rem;color:var(--muted);margin:.55rem 0 .15rem;text-transform:uppercase;letter-spacing:.04em}
input,select,textarea{width:100%;padding:.5rem .6rem;border:1px solid var(--line);border-radius:5px;font:inherit;background:#fff}
input:focus,select:focus,textarea:focus{outline:2px solid var(--amber);outline-offset:1px;border-color:var(--amber)}
.frow{display:grid;gap:.7rem}@media(min-width:640px){.frow.c2{grid-template-columns:1fr 1fr}.frow.c3{grid-template-columns:repeat(3,1fr)}}
button,.btn{display:inline-block;background:var(--asphalt);color:#fff;border:0;border-radius:5px;padding:.5rem .95rem;font:inherit;font-weight:600;cursor:pointer;margin-top:.7rem}
button:hover,.btn:hover{background:var(--gravel);text-decoration:none}
.btn.amber{background:var(--amber);color:#2B2000}.btn.danger{background:var(--red)}
.btn.small{padding:.25rem .6rem;font-size:.8rem;margin-top:0}

.flash{padding:.6rem .9rem;border-radius:6px;margin-bottom:.8rem;font-size:.9rem}
.flash.success{background:#E3F0E8;border:1px solid var(--green)}
.flash.danger{background:#F6E2DF;border:1px solid var(--red)}
.flash.warning,.flash.info{background:#FCF3DE;border:1px solid var(--amber)}

/* Yard spot grid */
.spotgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(72px,1fr));gap:.4rem}
.spot{border:1px solid var(--line);border-radius:5px;padding:.35rem;text-align:center;font-family:var(--mono);font-size:.75rem;background:#fff}
.spot.occupied{background:var(--asphalt);color:var(--amber);border-color:var(--asphalt)}
.spot.available{background:#E3F0E8;border-color:var(--green)}
.spot.reserved{background:#FCF3DE;border-color:var(--amber)}
.spot.out_of_service{background:#EEE;color:var(--muted);text-decoration:line-through}
.spot small{display:block;font-family:var(--sans);font-size:.62rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* Physical tag sheet */
.tag-sheet{max-width:420px;margin:2rem auto;border:6px solid var(--asphalt);border-radius:10px;padding:1.2rem;text-align:center;background:#fff}
.tag-sheet .refcode{font-family:var(--mono);font-size:2.4rem;font-weight:800;letter-spacing:.05em;background:var(--amber);border-radius:6px;padding:.4rem;margin:.6rem 0}
@media print{header,nav,.no-print{display:none}body{background:#fff}}
.muted{color:var(--muted)} .right{text-align:right} .mono{font-family:var(--mono)}
footer{max-width:1100px;margin:2rem auto;padding:0 1rem 2rem;color:var(--muted);font-size:.78rem}