:root{
  --bg:#14171a;
  --panel:#1b1f24;
  --panel-2:#21262c;
  --border:#2e353c;
  --border-soft:#262c32;
  --text:#eceae4;
  --text-dim:#8c939b;
  --text-faint:#5c636b;
  --steel:#4a7a96;
  --steel-bright:#6fa2c2;
  --amber:#e8a33d;
  --green:#5fa777;
  --red:#c4573f;
  --font-display:'Oswald',sans-serif;
  --font-body:'Inter',sans-serif;
  --font-mono:'IBM Plex Mono',monospace;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:
    radial-gradient(ellipse 1200px 600px at 50% -10%, rgba(74,122,150,0.10), transparent 60%),
    var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  min-height:100vh;
  padding:28px 32px 60px;
}
::selection{background:var(--steel);color:#0e1114;}

/* ---------- Header ---------- */
.brand-group{
  display:flex;align-items:center;gap:18px;
}
.brand-logo{
  height:52px;width:auto;
  filter:drop-shadow(0 2px 8px rgba(0,0,0,0.15));
}
.topbar{
  display:flex;justify-content:space-between;align-items:flex-end;
  flex-wrap:wrap;gap:16px;
  border-bottom:2px solid var(--border);
  padding-bottom:18px;margin-bottom:24px;
}
.brand-eyebrow{
  font-family:var(--font-mono);font-size:11px;letter-spacing:0.18em;
  color:var(--amber);text-transform:uppercase;margin-bottom:6px;
  display:flex;align-items:center;gap:8px;
}
.brand-eyebrow .pulse{
  width:7px;height:7px;border-radius:50%;background:var(--green);
  box-shadow:0 0 0 3px rgba(95,167,119,0.18);
  animation:pulse 2.4s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{opacity:1;} 50%{opacity:0.35;}
}
h1{
  font-family:var(--font-display);font-weight:600;font-size:32px;
  letter-spacing:0.01em;margin:0;text-transform:uppercase;
}
.subtitle{color:var(--text-dim);font-size:13px;margin-top:6px;}
.topbar-actions{display:flex;gap:10px;align-items:center;}
.btn{
  font-family:var(--font-body);font-weight:600;font-size:13px;
  padding:11px 18px;border-radius:3px;border:1px solid var(--border);
  background:var(--panel-2);color:var(--text);cursor:pointer;
  display:inline-flex;align-items:center;gap:8px;
  transition:border-color .15s, background .15s, transform .1s;
}
.btn:hover{border-color:var(--steel-bright);background:#242a31;}
.btn:active{transform:translateY(1px);}
.btn-primary{
  background:var(--amber);color:#1a1408;border-color:var(--amber);
}
.btn-primary:hover{background:#f0ac48;border-color:#f0ac48;}
.btn svg{width:14px;height:14px;}
#fileInput{display:none;}

/* ---------- KPI strip ---------- */
.kpi-strip{
  display:grid;grid-template-columns:repeat(5,1fr);gap:1px;
  background:var(--border);border:1px solid var(--border);
  border-radius:4px;overflow:hidden;margin-bottom:28px;
}
.kpi{
  background:var(--panel);padding:18px 20px;position:relative;
}
.kpi-label{
  font-family:var(--font-mono);font-size:10.5px;color:var(--text-dim);
  text-transform:uppercase;letter-spacing:0.1em;margin-bottom:10px;
}
.kpi-value{
  font-family:var(--font-display);font-size:30px;font-weight:600;
  line-height:1;
}
.kpi-value .unit{font-size:15px;color:var(--text-dim);font-weight:500;margin-left:3px;}
.kpi-sub{font-family:var(--font-mono);font-size:11px;color:var(--text-faint);margin-top:8px;}
.kpi.good .kpi-value{color:var(--green);}
.kpi.warn .kpi-value{color:var(--amber);}
.kpi.bad .kpi-value{color:var(--red);}

/* ---------- Section headers ---------- */
.section{margin-bottom:28px;}
.section-head{
  display:flex;align-items:baseline;justify-content:space-between;
  margin-bottom:14px;flex-wrap:wrap;gap:10px;
}
.section-title{
  font-family:var(--font-display);font-size:16px;text-transform:uppercase;
  letter-spacing:0.06em;font-weight:600;
  display:flex;align-items:center;gap:10px;
}
.section-title .idx{color:var(--amber);font-family:var(--font-mono);font-size:13px;}
.section-note{font-size:12px;color:var(--text-dim);}

/* ---------- Andon board ---------- */
.andon{
  border:1px solid var(--border);border-radius:4px;overflow:hidden;background:var(--panel);
}
.andon-row{
  display:grid;grid-template-columns:22px 150px 90px 1fr 130px 200px;
  align-items:center;gap:16px;padding:13px 18px;
  border-bottom:1px solid var(--border-soft);
  cursor:pointer;transition:background .12s;
}
.andon-row:last-child{border-bottom:none;}
.andon-row:hover{background:var(--panel-2);}
.andon-row.dim{opacity:0.4;}
.light{
  width:12px;height:12px;border-radius:50%;
  box-shadow:0 0 10px 1px currentColor;
}
.light.green{background:var(--green);color:var(--green);}
.light.amber{background:var(--amber);color:var(--amber);}
.light.red{background:var(--red);color:var(--red);}
.light.gray{background:var(--text-faint);color:transparent;box-shadow:none;}
.andon-plant{font-family:var(--font-display);font-size:15px;font-weight:500;letter-spacing:0.01em;}
.andon-pct{font-family:var(--font-mono);font-size:18px;font-weight:600;}
.andon-spark{height:32px;}
.andon-latest{font-family:var(--font-mono);font-size:11px;color:var(--text-dim);text-align:right;}
.andon-reason{font-size:12px;color:var(--text-dim);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.andon-head{
  display:grid;grid-template-columns:22px 150px 90px 1fr 130px 200px;
  gap:16px;padding:10px 18px;font-family:var(--font-mono);font-size:10px;
  text-transform:uppercase;letter-spacing:0.08em;color:var(--text-faint);
  background:var(--panel-2);border-bottom:1px solid var(--border);
}

/* ---------- Charts grid ---------- */
.charts-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:18px;margin-bottom:18px;}
.charts-grid-2{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.panel{
  background:var(--panel);border:1px solid var(--border);border-radius:4px;
  padding:18px 20px 14px;
}
.panel-title{
  font-family:var(--font-mono);font-size:11px;text-transform:uppercase;
  letter-spacing:0.08em;color:var(--text-dim);margin-bottom:14px;
  display:flex;justify-content:space-between;align-items:center;
}
.chart-wrap{position:relative;height:260px;}
.chart-wrap.tall{height:300px;}

/* filter chips */
.chip-row{display:flex;gap:6px;flex-wrap:wrap;}
.chip{
  font-family:var(--font-mono);font-size:10.5px;padding:5px 10px;border-radius:20px;
  border:1px solid var(--border);color:var(--text-dim);cursor:pointer;
  background:transparent;transition:all .12s;
}
.chip.active{background:var(--steel);border-color:var(--steel);color:#0e1114;font-weight:600;}
.chip:hover:not(.active){border-color:var(--steel-bright);color:var(--text);}

/* ---------- Table ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:4px;}
table{width:100%;border-collapse:collapse;font-size:12.5px;background:var(--panel);}
thead th{
  font-family:var(--font-mono);font-size:10px;text-transform:uppercase;letter-spacing:0.06em;
  color:var(--text-dim);text-align:left;padding:11px 14px;background:var(--panel-2);
  border-bottom:1px solid var(--border);white-space:nowrap;position:sticky;top:0;
  cursor:pointer;user-select:none;
}
thead th:hover{color:var(--text);}
tbody td{padding:10px 14px;border-bottom:1px solid var(--border-soft);white-space:nowrap;font-family:var(--font-mono);}
tbody tr:hover{background:var(--panel-2);}
tbody td.reason-cell{white-space:normal;max-width:280px;font-family:var(--font-body);color:var(--text-dim);font-size:12px;}
.pct-badge{
  display:inline-block;padding:2px 8px;border-radius:3px;font-weight:600;font-size:12px;
}
.pct-badge.good{background:rgba(95,167,119,0.15);color:var(--green);}
.pct-badge.warn{background:rgba(232,163,61,0.15);color:var(--amber);}
.pct-badge.bad{background:rgba(196,87,63,0.15);color:var(--red);}
.table-scroll{max-height:420px;overflow-y:auto;}

/* ---------- Upload panel ---------- */
.upload-zone{
  border:2px dashed var(--border);border-radius:4px;padding:26px;text-align:center;
  background:var(--panel-2);transition:border-color .15s, background .15s;cursor:pointer;
}
.upload-zone:hover, .upload-zone.drag{border-color:var(--amber);background:#26221a;}
.upload-zone svg{width:28px;height:28px;color:var(--text-dim);margin-bottom:10px;}
.upload-zone .u-title{font-family:var(--font-display);font-size:15px;text-transform:uppercase;letter-spacing:0.04em;}
.upload-zone .u-sub{font-size:12px;color:var(--text-dim);margin-top:6px;}
.upload-status{
  margin-top:14px;font-family:var(--font-mono);font-size:12px;padding:12px 14px;
  border-radius:3px;border:1px solid var(--border);display:none;
}
.upload-status.show{display:block;}
.upload-status.ok{border-color:var(--green);color:var(--green);background:rgba(95,167,119,0.06);}
.upload-status.err{border-color:var(--red);color:var(--red);background:rgba(196,87,63,0.06);}

footer{
  margin-top:36px;padding-top:18px;border-top:1px solid var(--border);
  font-family:var(--font-mono);font-size:11px;color:var(--text-faint);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;
}

/* ---------- Tab nav ---------- */
.tab-nav{
  display:flex;gap:6px;margin-bottom:24px;border-bottom:1px solid var(--border);
}
.tab-btn{
  font-family:var(--font-display);font-size:14px;text-transform:uppercase;letter-spacing:0.04em;
  font-weight:500;color:var(--text-dim);background:none;border:none;cursor:pointer;
  padding:10px 4px 12px;margin-right:22px;border-bottom:2px solid transparent;
  transition:color .15s, border-color .15s;
}
.tab-btn:hover{color:var(--text);}
.tab-btn.active{color:var(--amber);border-bottom-color:var(--amber);}

/* ---------- SLA cards ---------- */
.sla-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(420px,1fr));gap:18px;
}
.sla-card{
  background:var(--panel);border:1px solid var(--border);border-radius:4px;padding:18px 20px;
}
.sla-card-head{
  display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:14px;
}
.sla-card-title{
  font-family:var(--font-display);font-size:17px;font-weight:600;letter-spacing:0.01em;
  display:flex;align-items:center;gap:9px;
}
.sla-card-title .dot{width:9px;height:9px;border-radius:50%;}
.sla-score{
  font-family:var(--font-mono);font-size:26px;font-weight:600;line-height:1;text-align:right;
}
.sla-score .lbl{display:block;font-size:9.5px;color:var(--text-dim);text-transform:uppercase;letter-spacing:0.08em;font-weight:500;margin-bottom:4px;}
.sla-stats-row{
  display:flex;gap:18px;margin-bottom:14px;flex-wrap:wrap;
}
.sla-stat{font-family:var(--font-mono);font-size:12px;color:var(--text-dim);}
.sla-stat b{color:var(--text);font-weight:600;}
.sla-chart-wrap{height:170px;position:relative;}

@media (max-width:980px){
  .kpi-strip{grid-template-columns:repeat(2,1fr);}
  .charts-grid, .charts-grid-2{grid-template-columns:1fr;}
  .andon-row, .andon-head{grid-template-columns:18px 100px 70px 1fr;}
  .andon-latest, .andon-reason{display:none;}
}
@media (prefers-reduced-motion: reduce){
  .pulse{animation:none;}
}