/* ============================================================
   TPMS — Modern, white + gray, minimal
   ============================================================ */
:root{
  --bg:        #f4f6f9;
  --surface:   #ffffff;
  --line:      #e6e9ef;
  --line-2:    #eef0f4;
  --ink:       #1f2937;
  --ink-2:     #4b5563;
  --muted:     #8b95a5;
  --primary:   #2d3a4b;
  --primary-2: #3b4a5e;
  --accent:    #6c7a89;
  --ok:        #16a34a;
  --warn:      #f59e0b;
  --crit:      #ef4444;
  --tire-normal:  #ff8a75;     /* matches image coral */
  --tire-warning: #ffd166;     /* matches image yellow */
  --tire-critical:#ef4444;
  --tire-fault:   #4a5568;     /* matches image dark navy */
  --shadow-sm: 0 1px 2px rgba(20,28,40,.05);
  --shadow:    0 4px 18px rgba(20,28,40,.06);
  --radius:    14px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--ink);font:14px/1.6 "Vazirmatn",system-ui,-apple-system,"Segoe UI",Tahoma,sans-serif}
button{font-family:inherit}

/* -------- Layout -------- */
.app{display:grid;grid-template-columns:260px 1fr;min-height:100vh}
.sidebar{
  background:#fff;border-left:1px solid var(--line);
  padding:22px 18px;display:flex;flex-direction:column;gap:24px;
  position:sticky;top:0;height:100vh;
}
.brand{display:flex;align-items:center;gap:12px}
.logo{
  width:42px;height:42px;border-radius:12px;background:var(--primary);color:#fff;
  display:grid;place-items:center;font-weight:800;letter-spacing:.5px
}
.brand h1{margin:0;font-size:15px;font-weight:700}
.brand span{color:var(--muted);font-size:12px}

.nav{display:flex;flex-direction:column;gap:6px}
.nav-item{
  text-decoration:none;color:var(--ink-2);padding:10px 12px;border-radius:10px;
  font-weight:500;transition:.15s;
}
.nav-item:hover{background:var(--line-2);color:var(--ink)}
.nav-item.active{background:var(--line-2);color:var(--ink);font-weight:700}

.sidebar-footer{margin-top:auto}
.lbl{font-size:12px;color:var(--muted);display:block;margin-bottom:6px}
.select{
  width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;
  background:#fff;font:inherit;color:var(--ink);outline:none;
}
.select:focus{border-color:var(--accent)}

.main{padding:22px 28px;display:flex;flex-direction:column;gap:18px}

/* -------- Top bar -------- */
.topbar{
  display:flex;justify-content:space-between;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:10px 14px;box-shadow:var(--shadow-sm);
}
.topbar-right,.topbar-left{display:flex;gap:10px;align-items:center}
.pill{
  display:inline-flex;gap:8px;align-items:center;
  padding:7px 12px;border-radius:999px;background:var(--line-2);
  font-size:12.5px;color:var(--ink-2);font-variant-numeric:tabular-nums;
}
.dot{width:8px;height:8px;border-radius:50%;background:var(--ok);display:inline-block}
.dot.ok{background:var(--ok)}
.dot.warn{background:var(--warn)}
.dot.crit{background:var(--crit)}

/* -------- Buttons (minimal) -------- */
.btn{
  border:1px solid var(--line);background:#fff;color:var(--ink);
  padding:9px 16px;border-radius:10px;cursor:pointer;
  transition:.15s;font-weight:600;font-size:13px;
}
.btn:hover{background:var(--line-2)}
.btn.primary{background:var(--primary);color:#fff;border-color:var(--primary)}
.btn.primary:hover{background:var(--primary-2)}
.btn.ghost{background:transparent}

/* -------- Cards -------- */
.card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow-sm);
  padding:18px 18px 14px;
}
.card-head{
  display:flex;justify-content:space-between;align-items:center;
  margin-bottom:14px;
}
.card-head h2{margin:0;font-size:15px;font-weight:700}
.muted{color:var(--muted);font-size:12px}
.center{text-align:center}

/* -------- Truck schematic (mirrors the reference image) -------- */
.truck-card{padding:18px 18px 8px}
.truck-header{
  display:flex;justify-content:space-between;align-items:center;
  background:#dff3e8;border-radius:12px;padding:12px 16px;margin-bottom:18px;
  border:1px solid #cfe8da;
}
.truck-id{font-weight:800;font-size:22px;color:#1f2937;letter-spacing:.5px}
.truck-meta{display:flex;gap:18px;color:#1f2937;font-variant-numeric:tabular-nums;font-weight:600}

.truck-schematic{
  display:flex;flex-direction:column;align-items:center;gap:24px;padding:12px 0 6px;
  background:
    radial-gradient(ellipse at center, #fff 0%, #f7f9fc 100%);
  border-radius:14px;position:relative;
}
/* Faint mine-road background hint */
.truck-schematic::before{
  content:"";position:absolute;inset:0;border-radius:14px;
  background:
    linear-gradient(180deg, rgba(0,0,0,.03), rgba(0,0,0,0)),
    repeating-linear-gradient(45deg, transparent 0 14px, rgba(0,0,0,.025) 14px 15px);
  pointer-events:none;
}

.axle{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  position:relative;width:min(720px,100%);padding:0 8px;
}
.axle-bar{
  flex:1;height:14px;background:#5b6675;border-radius:4px;
  margin:0 -8px;position:relative;
}
.axle-bar::after{
  content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:28px;height:28px;border-radius:50%;background:#3b4a5e;border:3px solid #2a3441;
}

.tire{display:flex;flex-direction:column;align-items:center;gap:8px}
.tire-shape{
  width:118px;height:118px;border-radius:22px;background:var(--tire-normal);
  display:grid;place-items:center;color:#fff;
  box-shadow:var(--shadow);transition:.2s;
  border:1px solid rgba(0,0,0,.05);
}
.tire-shape.level-warning{background:var(--tire-warning);color:#5b4a00}
.tire-shape.level-critical{background:var(--tire-critical)}
.tire-shape.level-fault{background:var(--tire-fault)}
.tire-shape.tone-rear{background:#2c3e50}   /* visual variant for rear axle (matches reference image) */
.tire-shape.tone-rear.level-warning{background:var(--tire-warning);color:#5b4a00}
.tire-shape.tone-rear.level-critical{background:var(--tire-critical);color:#fff}
.tire-shape.tone-rear.level-fault{background:var(--tire-fault)}

.tire-meta{display:flex;flex-direction:column;gap:6px;text-align:center;font-variant-numeric:tabular-nums}
.kv{display:flex;justify-content:space-between;gap:18px;font-weight:600;font-size:13px;letter-spacing:.3px}
.kv .k{opacity:.85}
.kv .v{font-weight:700}

.tire-label{font-size:12px;color:var(--muted)}

.hub{
  width:60px;height:60px;border-radius:50%;background:#2a3441;border:4px solid #3b4a5e;
  position:relative;
}
.hub::after{
  content:"";position:absolute;inset:14px;border-radius:50%;background:#4a5568;
}

.legend{
  display:flex;gap:16px;justify-content:center;padding:8px 0 6px;flex-wrap:wrap;
}
.legend-item{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--ink-2)}
.sw{width:12px;height:12px;border-radius:3px;display:inline-block}
.sw.normal{background:var(--tire-normal)}
.sw.warning{background:var(--tire-warning)}
.sw.critical{background:var(--tire-critical)}
.sw.fault{background:var(--tire-fault)}

/* -------- Stats -------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.stat-card{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:14px 16px;box-shadow:var(--shadow-sm);
  display:flex;flex-direction:column;gap:4px;
}
.stat-label{color:var(--muted);font-size:12px}
.stat-value{font-size:24px;font-weight:800;font-variant-numeric:tabular-nums}
.stat-value.warn{color:var(--warn)}
.stat-value.crit{color:var(--crit)}
.stat-unit{color:var(--muted);font-size:11px}

/* -------- Charts grid -------- */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.chart-wrap{height:280px}

/* -------- Table -------- */
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:10px}
.tbl{width:100%;border-collapse:collapse;font-size:13px}
.tbl th,.tbl td{padding:10px 12px;border-bottom:1px solid var(--line-2);text-align:right}
.tbl th{background:var(--line-2);color:var(--ink-2);font-weight:700;font-size:12px}
.tbl tr:last-child td{border-bottom:0}
.sev{display:inline-block;padding:3px 10px;border-radius:999px;font-size:11px;font-weight:700}
.sev.INFO{background:#e8eef5;color:#3b4a5e}
.sev.WARNING{background:#fff3d6;color:#8a5a00}
.sev.CRITICAL{background:#ffe2e2;color:#a40000}

/* -------- Export row -------- */
.export-row{display:flex;gap:14px;align-items:flex-end;flex-wrap:wrap}
.field{display:flex;flex-direction:column;gap:6px}
.field input{
  padding:10px 12px;border:1px solid var(--line);border-radius:10px;
  font:inherit;color:var(--ink);background:#fff;outline:none;
}
.field input:focus{border-color:var(--accent)}

/* -------- Modal -------- */
.modal{
  position:fixed;inset:0;background:rgba(20,28,40,.45);
  display:grid;place-items:center;z-index:50;
}
.modal[hidden]{display:none}
.modal-card{
  background:#fff;border-radius:16px;width:min(720px,92vw);max-height:88vh;
  display:flex;flex-direction:column;box-shadow:0 20px 60px rgba(0,0,0,.25);
}
.modal-head{
  display:flex;justify-content:space-between;align-items:center;
  padding:16px 20px;border-bottom:1px solid var(--line);
}
.modal-head h3{margin:0;font-size:15px}
.modal-body{padding:18px 20px;overflow:auto}
.modal-foot{
  display:flex;gap:10px;justify-content:flex-end;
  padding:14px 20px;border-top:1px solid var(--line);
}
.sim-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:10px;margin-top:10px}
.sim-cell{
  border:1px solid var(--line);border-radius:10px;padding:10px;
  display:flex;flex-direction:column;gap:6px;background:#fafbfc;
}
.sim-cell h4{margin:0;font-size:12px;color:var(--ink-2)}
.sim-cell input{
  padding:7px 8px;border:1px solid var(--line);border-radius:8px;
  font:inherit;text-align:center;background:#fff;outline:none;
}

.footer{text-align:center;color:var(--muted);font-size:12px;padding:6px 0 14px}

/* -------- Responsive -------- */
@media (max-width: 1100px){
  .grid-2{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
}
@media (max-width: 820px){
  .app{grid-template-columns:1fr}
  .sidebar{position:static;height:auto;flex-direction:row;align-items:center;gap:14px;flex-wrap:wrap}
  .nav{flex-direction:row;gap:6px;flex-wrap:wrap}
  .sidebar-footer{margin:0;min-width:200px}
  .tire-shape{width:96px;height:96px}
  .kv{font-size:12px}
}