/* ── RESET & BASE ─────────────────────────────────────────────────────── */
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Segoe UI',Arial,sans-serif;font-size:13px;background:#0f1923;color:#d0dde8}
input[type=number],input[type=text],select{
  background:#1a2940;border:1px solid #2a4060;color:#e0ecf8;padding:4px 7px;
  border-radius:4px;width:100%;outline:none;font-size:12px}
input[type=number]:focus,select:focus{border-color:#4a9eff;background:#1f3352}
input[type=number].warn{border-color:#e67e22}
input[type=number].danger{border-color:#e74c3c}
label{font-size:11px;color:#7a9ab8;display:block;margin-bottom:2px}
button{cursor:pointer;border:none;border-radius:4px;font-size:12px;font-weight:600;padding:6px 14px}

/* ── LAYOUT ──────────────────────────────────────────────────────────── */
#app{display:flex;flex-direction:column;height:100vh;overflow:hidden}
#topbar{background:linear-gradient(90deg,#0d2035,#0a3050);padding:8px 16px;
  display:flex;align-items:center;gap:16px;flex-shrink:0;border-bottom:2px solid #1e4a70;flex-wrap:wrap}
#topbar h1{font-size:16px;color:#7ecfff;white-space:nowrap;letter-spacing:1px}
.utog{display:flex;gap:3px}
.utog button{background:#102030;color:#7a9ab8;padding:4px 12px;border:1px solid #2a4060}
.utog button.on{background:#1e5080;color:#fff;border-color:#4a9eff}
.mtog{display:flex;gap:3px;flex-wrap:wrap}
.mtog button{padding:4px 10px;border:1px solid #2a4060;font-size:11px}
.mtog button.on{color:#fff}
.m-dm .mtog button[data-m=dm].on{background:#1a5c3a;border-color:#27ae60;color:#7aff9a}
.m-ww .mtog button[data-m=ww].on{background:#1a3a5c;border-color:#2980b9;color:#7ac8ff}
.m-vol .mtog button[data-m=vol].on{background:#4a2000;border-color:#e67e22;color:#ffb870}
.m-bh .mtog button[data-m=bh].on{background:#4a0a0a;border-color:#c0392b;color:#ff9090}
.m-lb .mtog button[data-m=lb].on{background:#2a0a4a;border-color:#8e44ad;color:#d090ff}
.sep{flex:1}
#wname{background:#0a1f30;border:1px solid #2a4060;color:#90ccff;padding:4px 10px;
  border-radius:4px;font-size:12px;width:160px}

/* ── TABS ────────────────────────────────────────────────────────────── */
#tabbar{display:flex;background:#0c1a28;border-bottom:2px solid #1e3a5a;flex-shrink:0}
.tab-btn{padding:9px 18px;color:#5a7a9a;font-size:12px;font-weight:600;border-bottom:2px solid transparent;
  letter-spacing:.5px;background:none;border-radius:0;transition:color .2s}
.tab-btn:hover{color:#90c0e8}
.tab-btn.on{color:#7ecfff;border-bottom-color:#4a9eff;background:#0f2035}
#main{flex:1;overflow:auto;padding:12px 14px;display:grid;grid-template-columns:340px 1fr;gap:12px}
#main.full{grid-template-columns:1fr}

/* ── TAB PANELS ──────────────────────────────────────────────────────── */
.tab-panel{display:none!important}
.tab-panel.on{display:block!important}
/* data panels live inside the 2-col grid — override to flow naturally */
#panel-data-left.on,#panel-data-right.on{display:block!important}

/* ── CARD ────────────────────────────────────────────────────────────── */
.card{background:#0d1e2e;border:1px solid #1e3a5a;border-radius:6px;padding:10px 12px;margin-bottom:8px}
.card h3{font-size:11px;font-weight:700;letter-spacing:1px;text-transform:uppercase;
  color:#4a9eff;margin-bottom:8px;padding-bottom:4px;border-bottom:1px solid #1e3a5a}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:6px}
.row3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;margin-bottom:6px}
.row1{margin-bottom:6px}

/* ── RESULTS PANEL ───────────────────────────────────────────────────── */
.res-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-bottom:6px}
.res-box{background:#0a1825;border:1px solid #1e3a5a;border-radius:5px;padding:7px 10px}
.res-box .rl{font-size:10px;color:#6090b0;margin-bottom:2px}
.res-box .rv{font-size:18px;font-weight:700;color:#7ecfff}
.res-box .ru{font-size:10px;color:#4a7090;margin-left:3px}
.res-box.green{border-color:#27ae60}.res-box.green .rv{color:#7aff9a}
.res-box.yellow{border-color:#e67e22}.res-box.yellow .rv{color:#ffd080}
.res-box.red{border-color:#e74c3c}.res-box.red .rv{color:#ff8080}
.res-box.blue{border-color:#2980b9}.res-box.blue .rv{color:#90d0ff}
.res-box.big{grid-column:1/-1}
.res-note{font-size:10px;color:#6090b0;margin-top:2px}

/* ── STATUS BAR ──────────────────────────────────────────────────────── */
#statusbar{background:#060f18;padding:4px 14px;font-size:10px;color:#3a6080;
  border-top:1px solid #1a3050;flex-shrink:0;display:flex;gap:20px}
.sb-item{display:flex;gap:5px}
.sb-dot{width:7px;height:7px;border-radius:50%;display:inline-block;margin-top:1px}

/* ── INFLUX TYPE BADGE ───────────────────────────────────────────────── */
.influx-badge{display:inline-block;padding:3px 10px;border-radius:12px;font-size:11px;font-weight:700;margin-top:4px}
.ig-gas{background:#c0392b;color:#fff}
.ig-oil{background:#d4870a;color:#fff}
.ig-brine{background:#2471a3;color:#fff}
.ig-cond{background:#7d3c98;color:#fff}
.ig-unk{background:#2c3e50;color:#aaa}

/* ── STROKE SCHEDULE TABLE ───────────────────────────────────────────── */
.sched-table{width:100%;border-collapse:collapse;font-size:11px}
.sched-table th{background:#0a2035;color:#4a9eff;padding:5px 8px;text-align:left;border-bottom:2px solid #1e3a5a}
.sched-table td{padding:4px 8px;border-bottom:1px solid #0d2035}
.sched-table tr:nth-child(even) td{background:#090f18}
.sched-table tr.hl td{background:#0f2a1e;color:#7aff9a;font-weight:700}

/* ── CHART ───────────────────────────────────────────────────────────── */
#chartWrap{background:#0a1825;border:1px solid #1e3a5a;border-radius:6px;padding:12px;margin-bottom:10px}
#chartWrap h3{font-size:11px;color:#4a9eff;margin-bottom:8px;letter-spacing:1px;text-transform:uppercase}
canvas#chart{display:block;width:100%;border-radius:4px}

/* ── VOLUMETRIC TRACKER ──────────────────────────────────────────────── */
#volTracker{display:none}
.vol-step{background:#0d1e2e;border:1px solid #1e3a5a;border-radius:5px;padding:8px 10px;margin-bottom:5px}
.vol-step.active{border-color:#e67e22}
.vol-step.done{border-color:#27ae60;opacity:.7}

/* ── PROCEDURE ───────────────────────────────────────────────────────── */
#proc-content{max-width:800px;margin:0 auto}
.proc-section{background:#0d1e2e;border:1px solid #1e3a5a;border-radius:6px;padding:12px 14px;margin-bottom:10px}
.proc-section h3{font-size:12px;color:#4a9eff;margin-bottom:8px;text-transform:uppercase;letter-spacing:1px}
.proc-step{display:flex;gap:10px;margin-bottom:7px;align-items:flex-start}
.step-num{background:#1e4070;color:#7ecfff;min-width:22px;height:22px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;flex-shrink:0}
.step-text{font-size:12px;color:#b0c8d8;line-height:1.5}
.step-text strong{color:#7ecfff}
.proc-val{display:inline-block;background:#0a2535;border:1px solid #2a5070;border-radius:3px;
  padding:1px 7px;color:#ffcc66;font-weight:700;font-family:monospace;font-size:12px}
.proc-formula{background:#0a1e2e;border-left:3px solid #4a9eff;padding:5px 10px;
  font-family:monospace;font-size:11px;color:#90c8e8;margin:5px 0;border-radius:0 3px 3px 0}
.warn-box{background:#2a1000;border:1px solid #e67e22;border-radius:5px;padding:8px 12px;
  color:#ffb870;font-size:12px;margin-bottom:8px}
.danger-box{background:#2a0000;border:1px solid #c0392b;border-radius:5px;padding:8px 12px;
  color:#ff9090;font-size:12px;margin-bottom:8px}
.info-box{background:#001828;border:1px solid #2980b9;border-radius:5px;padding:8px 12px;
  color:#90c8ff;font-size:12px;margin-bottom:8px}

/* ── ALERT ───────────────────────────────────────────────────────────── */
.alert{position:fixed;top:60px;right:16px;z-index:99;background:#1a0000;border:2px solid #e74c3c;
  color:#ff9090;padding:8px 14px;border-radius:6px;font-size:12px;font-weight:600;
  box-shadow:0 4px 20px rgba(0,0,0,.6);display:none}

/* ── PRINT ───────────────────────────────────────────────────────────── */
.print-btn{background:#1e4050;color:#7ecfff;border:1px solid #2a5070;padding:5px 12px;font-size:11px}
.print-btn:hover{background:#254f65}
@media print{
  #topbar{background:#fff;color:#000;padding:4px 8px}
  #tabbar{display:none}
  body{background:#fff;color:#000}
  .card,.res-box,.proc-section{border-color:#ccc;background:#fff}
  .card h3,.proc-section h3{color:#1a3550}
  #main{display:block;overflow:visible}
  .res-box .rv{color:#1a3550}
  .res-box .rl{color:#555}
  .alert,.print-btn{display:none!important}
}

/* ── UNIT VISIBILITY ─────────────────────────────────────────────────── */
.f,.s,.m{display:none}
body.field .f{display:inline}
body.si .s{display:inline}
body.metric .m{display:inline}
.fb,.sb,.mb{display:none}
body.field .fb{display:block}
body.si .sb{display:block}
body.metric .mb{display:block}

/* METHOD SHOW/HIDE */
.show-dm,.show-ww,.show-vol,.show-bh,.show-lb{display:none}
.m-dm .show-dm,.m-ww .show-ww,.m-vol .show-vol,.m-bh .show-bh,.m-lb .show-lb{display:block}
.show-circ{display:none}
.m-dm .show-circ,.m-ww .show-circ{display:block}