/* =====================================================================
   ZoFlowX SA Cockpit
   Dense operations console. Ink rail, paper workspace, mono numbers.
   ===================================================================== */

:root {
  --ink:      #0B1420;
  --ink-2:    #16232F;
  --ink-3:    #22323F;
  --paper:    #F4F6F9;
  --surface:  #FFFFFF;
  --line:     #E2E7EE;
  --line-2:   #F0F3F7;
  --text:     #16202C;
  --muted:    #6A7787;
  --faint:    #99A4B2;

  --blue:     #266EB3;
  --blue-d:   #1D5891;
  --blue-w:   #EAF2FA;
  --red:      #DF3A3C;
  --red-w:    #FDECEC;
  --amber:    #F8B222;
  --amber-w:  #FEF5E2;
  --green:    #17916B;
  --green-w:  #E7F5F0;

  --rail: 236px;
  --r: 5px;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: var(--sans);
  font-size: 14px;
  color: var(--text);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

button, input, select, textarea { font-family: inherit; font-size: inherit; color: inherit; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

/* ---------- shell ---------- */
.shell { display: flex; min-height: 100vh; }

.rail {
  width: var(--rail);
  flex: 0 0 var(--rail);
  background: var(--ink);
  color: #C7D2DE;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  padding: 18px 0 24px;
}

.rail-brand {
  padding: 0 18px 18px;
  border-bottom: 1px solid var(--ink-3);
  margin-bottom: 14px;
}
.rail-brand b {
  display: block;
  color: #fff;
  font-size: 15px;
  letter-spacing: -0.01em;
  font-weight: 700;
}
.rail-brand span {
  display: block;
  color: var(--faint);
  font-size: 11px;
  margin-top: 3px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.rail-group {
  padding: 14px 18px 5px;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #5C6B7C;
  font-weight: 600;
}

.rail a.nav {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 7px 18px;
  color: #C7D2DE;
  font-size: 13.5px;
  border-left: 3px solid transparent;
}
.rail a.nav:hover { background: var(--ink-2); text-decoration: none; color: #fff; }
.rail a.nav.on { background: var(--ink-2); color: #fff; border-left-color: var(--blue); font-weight: 600; }
.rail a.nav .ico { width: 16px; text-align: center; opacity: .75; font-size: 13px; }
.rail a.nav .count {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--faint);
}

.rail-foot {
  margin-top: 20px;
  padding: 14px 18px 0;
  border-top: 1px solid var(--ink-3);
  font-size: 11.5px;
  color: #5C6B7C;
  line-height: 1.6;
}
.rail-foot button {
  background: none; border: 0; color: #8494A5; padding: 0; cursor: pointer;
  font-size: 11.5px; text-decoration: underline;
}

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

/* ---------- capture strip: the signature element ---------- */
.capture {
  position: sticky;
  top: 0;
  z-index: 30;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  padding: 9px 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.capture-label {
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
  margin-right: 2px;
}
.capture input[type="text"] {
  flex: 1 1 200px;
  min-width: 140px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 6px 9px;
  background: var(--paper);
}
.capture input[type="text"]:focus { background: #fff; border-color: var(--blue); outline: none; }
.capture select, .capture input[type="number"] {
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 6px 7px;
  background: var(--paper);
}
.capture input[type="number"] { width: 58px; font-family: var(--mono); }
.capture .leak-toggle {
  display: flex; align-items: center; gap: 5px;
  font-size: 12px; color: var(--muted); white-space: nowrap;
}
.capture-meter {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
  padding-left: 12px;
  border-left: 1px solid var(--line);
}
.meter-num {
  font-family: var(--mono);
  font-size: 17px;
  font-weight: 700;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.meter-cap {
  font-size: 9.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 3px;
}

/* ---------- page ---------- */
.page { padding: 22px 20px 60px; max-width: 1440px; }

.page-head {
  display: flex; align-items: flex-end; gap: 14px;
  margin-bottom: 16px; flex-wrap: wrap;
}
.page-head h1 {
  margin: 0; font-size: 21px; letter-spacing: -0.02em; font-weight: 700;
}
.page-head p { margin: 4px 0 0; color: var(--muted); font-size: 13px; max-width: 62ch; }
.page-head .spacer { flex: 1; }

/* ---------- buttons ---------- */
.btn {
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: var(--r);
  padding: 6px 12px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
}
.btn:hover { border-color: #C9D2DD; background: #FBFCFD; }
.btn.primary { background: var(--blue); border-color: var(--blue); color: #fff; }
.btn.primary:hover { background: var(--blue-d); border-color: var(--blue-d); }
.btn.ghost { border-color: transparent; background: transparent; color: var(--muted); }
.btn.ghost:hover { background: var(--line-2); color: var(--text); }
.btn.danger { color: var(--red); }
.btn.danger:hover { background: var(--red-w); border-color: var(--red); }
.btn.sm { padding: 3px 8px; font-size: 12px; }

/* ---------- cards and grid ---------- */
.grid { display: grid; gap: 14px; }
.g2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.g4 { grid-template-columns: repeat(4, minmax(0,1fr)); }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 14px 15px;
}
.card h3 {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
  display: flex; align-items: center; gap: 8px;
}
.card h3 .spacer { flex: 1; }
.card.pad0 { padding: 0; }
.card.pad0 h3 { padding: 13px 15px 9px; margin: 0; border-bottom: 1px solid var(--line-2); }

.stat { display: flex; flex-direction: column; }
.stat .v {
  font-family: var(--mono);
  font-size: 27px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.stat .sub { font-size: 12px; color: var(--muted); margin-top: 6px; }
.stat .v.red { color: var(--red); }
.stat .v.amber { color: var(--amber); }
.stat .v.green { color: var(--green); }
.stat .v.blue { color: var(--blue); }

/* ---------- tables ---------- */
.tbl-wrap { overflow-x: auto; }
table.tbl { width: 100%; border-collapse: collapse; }
table.tbl th {
  text-align: left;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
  padding: 8px 10px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
  background: var(--surface);
}
table.tbl td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--line-2);
  vertical-align: top;
}
table.tbl tr:last-child td { border-bottom: 0; }
table.tbl tr:hover td { background: #FAFBFD; }
table.tbl td.num, table.tbl th.num {
  text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums;
}
table.tbl td.act { text-align: right; white-space: nowrap; width: 1%; }
.t-sub { color: var(--muted); font-size: 12px; }
.t-strong { font-weight: 600; }

.empty {
  padding: 26px 15px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}
.empty b { display: block; color: var(--text); margin-bottom: 4px; font-size: 14px; }

/* ---------- pills, dots, bars ---------- */
.pill {
  display: inline-block;
  padding: 2px 7px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.01em;
  background: var(--line-2);
  color: var(--muted);
  white-space: nowrap;
}
.pill.blue  { background: var(--blue-w);  color: var(--blue-d); }
.pill.red   { background: var(--red-w);   color: var(--red); }
.pill.amber { background: var(--amber-w); color: #A9761A; }
.pill.green { background: var(--green-w); color: var(--green); }

.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; vertical-align: 1px; }
.dot.red { background: var(--red); }
.dot.amber { background: var(--amber); }
.dot.green { background: var(--green); }

.bar { height: 7px; border-radius: 4px; background: var(--line-2); overflow: hidden; }
.bar > i { display: block; height: 100%; background: var(--blue); }
.bar > i.over { background: var(--red); }
.bar > i.under { background: var(--amber); }
.bar > i.ok { background: var(--green); }

.trackrow { display: grid; grid-template-columns: 130px 1fr 92px; gap: 10px; align-items: center; margin-bottom: 9px; }
.trackrow .lbl { font-size: 12.5px; }
.trackrow .val { font-family: var(--mono); font-size: 12px; text-align: right; color: var(--muted); font-variant-numeric: tabular-nums; }

/* ---------- ladder ---------- */
.ladder { display: flex; gap: 3px; }
.ladder i {
  flex: 1; height: 6px; border-radius: 2px; background: var(--line);
}
.ladder i.on { background: var(--blue); }

/* ---------- forms and modal ---------- */
.backdrop {
  position: fixed; inset: 0; background: rgba(11,20,32,.45);
  display: flex; align-items: flex-start; justify-content: center;
  padding: 40px 16px; z-index: 100; overflow-y: auto;
}
.modal {
  background: var(--surface);
  border-radius: 7px;
  width: 100%;
  max-width: 620px;
  box-shadow: 0 18px 48px rgba(11,20,32,.28);
}
.modal-head {
  padding: 14px 18px; border-bottom: 1px solid var(--line);
  display: flex; align-items: center; gap: 10px;
}
.modal-head h2 { margin: 0; font-size: 16px; font-weight: 700; letter-spacing: -0.01em; }
.modal-body { padding: 16px 18px; display: grid; gap: 12px; }
.modal-foot {
  padding: 12px 18px; border-top: 1px solid var(--line);
  display: flex; justify-content: flex-end; gap: 8px;
}

.fld { display: flex; flex-direction: column; gap: 5px; }
.fld > label { font-size: 11.5px; font-weight: 600; color: var(--muted); }
.fld input, .fld select, .fld textarea {
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 7px 9px;
  background: var(--surface);
  width: 100%;
}
.fld input:focus, .fld select:focus, .fld textarea:focus { border-color: var(--blue); outline: none; }
.fld textarea { min-height: 76px; resize: vertical; font-family: inherit; }
.fld .hint { font-size: 11.5px; color: var(--faint); }
.fld.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.fld-check { display: flex; align-items: center; gap: 7px; font-size: 13px; }
.fld-check input { width: auto; }

/* ---------- toast ---------- */
.toast-wrap { position: fixed; right: 18px; bottom: 18px; z-index: 200; display: grid; gap: 8px; }
.toast {
  background: var(--ink); color: #fff; padding: 9px 14px; border-radius: var(--r);
  font-size: 13px; box-shadow: 0 8px 22px rgba(11,20,32,.3);
}
.toast.err { background: var(--red); }

/* ---------- setup screen ---------- */
.setup { max-width: 620px; margin: 8vh auto; padding: 0 20px; }
.setup h1 { font-size: 24px; letter-spacing: -0.02em; margin: 0 0 8px; }
.setup p { color: var(--muted); line-height: 1.6; }
.setup pre {
  background: var(--ink); color: #D6E1EC; padding: 14px; border-radius: var(--r);
  font-family: var(--mono); font-size: 12.5px; overflow-x: auto;
}

/* ---------- misc ---------- */
.spark { display: block; }
.hr { height: 1px; background: var(--line); margin: 18px 0; border: 0; }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.right { text-align: right; }
.nowrap { white-space: nowrap; }
.stack { display: grid; gap: 14px; }
.chips { display: flex; flex-wrap: wrap; gap: 5px; }
.filters { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 12px; }
.filters select, .filters input {
  border: 1px solid var(--line); border-radius: var(--r); padding: 5px 8px; background: var(--surface);
}

@media (max-width: 1100px) { .g4 { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 900px) {
  .shell { flex-direction: column; }
  .rail { width: 100%; flex: none; height: auto; position: static; }
  .rail a.nav { display: inline-flex; border-left: 0; border-bottom: 2px solid transparent; }
  .rail a.nav.on { border-left: 0; border-bottom-color: var(--blue); }
  .rail-group { padding-bottom: 0; }
  .g2, .g3, .g4 { grid-template-columns: 1fr; }
  .capture-meter { margin-left: 0; border-left: 0; padding-left: 0; }
  .trackrow { grid-template-columns: 100px 1fr 80px; }
}