/* Operator console — cellular call bridge.
   Control-room ink-teal with a single signal-amber accent; monospace is the
   hero voice because the data here (numbers, durations, CDRs) is equipment
   readout. Deliberately dark: this is a NOC console, not a marketing page. */

:root {
  --ink:    #0E1518;   /* control-room background        */
  --ink-2:  #0A1013;   /* deepest wells (inputs, chart)  */
  --panel:  #141E23;   /* raised surfaces                */
  --panel-2:#17242A;   /* hover / inset surfaces         */
  --line:   #22323A;   /* hairlines / borders            */
  --line-2: #2E434D;   /* stronger dividers, hovers      */
  --text:   #E6EEF0;
  --muted:  #7C9199;
  --faint:  #4E626B;

  --signal: #F4B740;   /* THE accent: active line / signal / amber phosphor */
  --signal-dim: #7a5f22;
  --live:   #35C08A;   /* connected / completed          */
  --drop:   #E5484D;   /* dropped / hang up              */
  --in:     #4CC9F0;   /* inbound direction              */

  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Code", Menlo, Consolas, monospace;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  --r: 10px;           /* radius */
  --gap: 18px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: radial-gradient(1200px 600px at 78% -8%, #16262d 0%, var(--ink) 55%);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }

/* ---- type helpers ---- */
.mono { font-family: var(--mono); }
.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
}
.num { font-family: var(--mono); font-variant-numeric: tabular-nums; }

/* ---- app shell ---- */
.app { display: grid; grid-template-columns: 232px 1fr; min-height: 100%; }

.rail {
  border-right: 1px solid var(--line);
  padding: 22px 18px;
  display: flex; flex-direction: column; gap: 26px;
  background: linear-gradient(180deg, rgba(255,255,255,.015), transparent);
  position: sticky; top: 0; height: 100vh;
}
.brand { display: flex; align-items: center; gap: 11px; }
.brand .glyph {
  width: 34px; height: 34px; flex: none;
  display: grid; place-items: center;
  border: 1px solid var(--signal-dim); border-radius: 9px;
  color: var(--signal);
  background: radial-gradient(circle at 50% 30%, rgba(244,183,64,.16), transparent 70%);
}
.brand b { font-family: var(--mono); font-size: 14px; letter-spacing: .02em; }
.brand small { display: block; color: var(--faint); font-family: var(--mono); font-size: 10.5px; letter-spacing: .16em; text-transform: uppercase; }

.nav { display: flex; flex-direction: column; gap: 3px; }
.nav a {
  display: flex; align-items: center; gap: 11px;
  padding: 9px 11px; border-radius: 8px;
  color: var(--muted); font-family: var(--mono); font-size: 13px;
  border: 1px solid transparent;
}
.nav a:hover { color: var(--text); background: var(--panel); }
.nav a.active { color: var(--text); background: var(--panel); border-color: var(--line); }
.nav a.active .dot { background: var(--signal); box-shadow: 0 0 10px var(--signal); }
.nav .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--faint); flex: none; }

.rail .spacer { flex: 1; }

.main { padding: 30px 34px 60px; min-width: 0; }
.topbar { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 26px; flex-wrap: wrap; }
.topbar h1 { font-family: var(--mono); font-size: 22px; font-weight: 600; letter-spacing: -.01em; margin: 4px 0 0; }
.topbar p { margin: 3px 0 0; color: var(--muted); font-size: 13px; }

/* ---- connection pill ---- */
.pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 13px; border-radius: 999px;
  border: 1px solid var(--line); background: var(--panel);
  font-family: var(--mono); font-size: 12px; color: var(--muted);
}
.pill .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--faint); }
.pill.ok   { color: var(--text); }
.pill.ok   .dot { background: var(--live); box-shadow: 0 0 8px var(--live); }
.pill.busy .dot, .pill.busy { color: var(--signal); }
.pill.busy .dot { background: var(--signal); box-shadow: 0 0 8px var(--signal); animation: pulse 1.4s infinite; }
.pill.err  { color: var(--drop); border-color: #4a2224; }
.pill.err  .dot { background: var(--drop); }

/* ---- readout tiles ---- */
.readouts { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gap); }
.tile {
  border: 1px solid var(--line); border-radius: var(--r);
  background: linear-gradient(180deg, var(--panel), var(--panel-2));
  padding: 16px 17px; position: relative; overflow: hidden;
}
.tile .label { display: flex; align-items: center; justify-content: space-between; }
.tile .value { font-family: var(--mono); font-variant-numeric: tabular-nums; font-size: 32px; line-height: 1.1; margin-top: 12px; letter-spacing: -.02em; }
.tile .value .unit { font-size: 15px; color: var(--muted); margin-left: 3px; }
.tile .sub { color: var(--faint); font-family: var(--mono); font-size: 11.5px; margin-top: 7px; }
/* the signature tile — live talk-time glows amber */
.tile.signal { border-color: var(--signal-dim); }
.tile.signal::before {
  content: ""; position: absolute; inset: 0 auto 0 0; width: 3px;
  background: linear-gradient(var(--signal), transparent);
}
.tile.signal .value { color: var(--signal); }

/* ---- panels ---- */
.panel { border: 1px solid var(--line); border-radius: var(--r); background: var(--panel); }
.panel > header { display: flex; align-items: center; justify-content: space-between; padding: 15px 18px; border-bottom: 1px solid var(--line); }
.panel > header h2 { font-family: var(--mono); font-size: 13px; font-weight: 600; letter-spacing: .04em; margin: 0; text-transform: uppercase; }
.grid-2 { display: grid; grid-template-columns: 1fr; gap: var(--gap); margin-top: var(--gap); }

/* ---- activity chart (SVG injected by JS) ---- */
.chart { padding: 12px 14px 6px; }
.chart svg { width: 100%; height: 150px; display: block; }
.chart .axis { fill: var(--faint); font-family: var(--mono); font-size: 9.5px; letter-spacing: .04em; }
.chart .sig-line { fill: none; stroke: var(--signal); stroke-width: 2; stroke-linejoin: round; }
.chart .sig-area { fill: url(#sigfill); }
.chart .sig-dot { fill: var(--signal); }
.chart .baseline { stroke: var(--line); stroke-width: 1; }

/* ---- CDR ledger ---- */
.ledger-wrap { overflow-x: auto; }
table.ledger { width: 100%; border-collapse: collapse; font-family: var(--mono); font-size: 13px; }
table.ledger th {
  text-align: left; padding: 11px 18px; color: var(--muted);
  font-weight: 500; font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase;
  border-bottom: 1px solid var(--line); white-space: nowrap;
}
table.ledger td { padding: 12px 18px; border-bottom: 1px solid var(--line); white-space: nowrap; }
table.ledger tr:last-child td { border-bottom: none; }
table.ledger tbody tr:hover { background: var(--panel-2); }
.ledger .time { color: var(--muted); }
.ledger .number { color: var(--text); font-variant-numeric: tabular-nums; }
.ledger .dur { color: var(--text); font-variant-numeric: tabular-nums; }
.ledger .room { color: var(--faint); }

/* direction glyph */
.dir { display: inline-flex; align-items: center; gap: 7px; }
.dir .arrow { font-size: 13px; }
.dir.out .arrow { color: var(--signal); }
.dir.in  .arrow { color: var(--in); }

/* outcome badges */
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 3px 9px; border-radius: 6px; font-size: 11px; border: 1px solid; }
.badge.completed { color: var(--live); border-color: #234a3c; background: rgba(53,192,138,.07); }
.badge.dropped   { color: var(--drop); border-color: #4a2224; background: rgba(229,72,77,.07); }
.badge.live      { color: var(--signal); border-color: var(--signal-dim); background: rgba(244,183,64,.08); }
.badge.live .d, .row.live .num-live { position: relative; }
.badge.live::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--signal); box-shadow: 0 0 8px var(--signal); animation: pulse 1.3s infinite; }

.empty { padding: 46px 18px; text-align: center; color: var(--muted); font-family: var(--mono); font-size: 13px; }
.empty b { color: var(--text); display: block; margin-bottom: 6px; }

/* ---- lines · audio health ---- */
.lines-panel { margin-top: var(--gap); }
.lines { display: grid; gap: 1px; background: var(--line); }
.line {
  display: grid; grid-template-columns: auto 1fr auto auto; align-items: center; gap: 14px;
  padding: 13px 18px; background: var(--panel);
}
.line-badge { width: 9px; height: 9px; border-radius: 50%; background: var(--faint); }
.line-badge.live     { background: var(--live); box-shadow: 0 0 9px var(--live); animation: pulse 1.6s infinite; }
.line-badge.degraded { background: var(--signal); box-shadow: 0 0 9px var(--signal); animation: pulse 1s infinite; }
.line-badge.offline  { background: var(--drop); }
.line-badge.idle     { background: var(--faint); }
.line-room { font-family: var(--mono); font-size: 13px; color: var(--text); letter-spacing: .02em; }
.line-state { font-family: var(--mono); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.line-state.live { color: var(--live); }
.line-state.degraded { color: var(--signal); }
.line-state.offline { color: var(--drop); }
.line-rates { font-family: var(--mono); font-size: 11.5px; color: var(--muted); font-variant-numeric: tabular-nums; display: flex; gap: 12px; align-items: center; }
.line-codec { color: var(--faint); padding-left: 12px; border-left: 1px solid var(--line-2); }
@media (max-width: 560px) {
  .line { grid-template-columns: auto 1fr auto; }
  .line-rates { display: none; }
}

/* ---- buttons ---- */
button { font-family: var(--sans); cursor: pointer; }
.btn {
  border: 1px solid var(--line); background: var(--panel); color: var(--text);
  border-radius: 9px; padding: 11px 16px; font-size: 14px; font-family: var(--mono);
  transition: border-color .12s, background .12s, transform .05s;
}
.btn:hover { border-color: var(--line-2); background: var(--panel-2); }
.btn:active { transform: translateY(1px); }
.btn.call   { background: var(--live); border-color: var(--live); color: #05130d; font-weight: 600; }
.btn.call:hover { background: #43d29a; }
.btn.hangup { background: transparent; border-color: #4a2224; color: var(--drop); }
.btn.hangup:hover { background: rgba(229,72,77,.1); }
.btn:disabled { opacity: .4; cursor: not-allowed; }
.btn:disabled:hover { border-color: var(--line); background: var(--panel); }
.btn.call:disabled:hover { background: var(--live); }

:focus-visible { outline: 2px solid var(--signal); outline-offset: 2px; border-radius: 6px; }

/* ---- dialer ---- */
.dialer { max-width: 400px; margin: 0; }
.readout-line {
  border: 1px solid var(--line); border-radius: var(--r);
  background: var(--ink-2); padding: 18px 20px; margin-bottom: 18px;
}
.readout-line .digits {
  font-family: var(--mono); font-variant-numeric: tabular-nums;
  font-size: 30px; letter-spacing: .04em; min-height: 38px; word-break: break-all;
  color: var(--signal); text-shadow: 0 0 18px rgba(244,183,64,.25);
}
.readout-line .digits:empty::before { content: "—"; color: var(--faint); text-shadow: none; }
.readout-line .caption { display: flex; justify-content: space-between; margin-top: 8px; }
.keypad { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.keypad button {
  aspect-ratio: 1.7 / 1; border: 1px solid var(--line); border-radius: var(--r);
  background: var(--panel); color: var(--text);
  font-family: var(--mono); font-size: 22px; display: grid; place-items: center;
  transition: border-color .1s, background .1s, transform .04s;
}
.keypad button .sub { font-size: 9px; color: var(--faint); letter-spacing: .18em; margin-top: 2px; }
.keypad button:hover { border-color: var(--line-2); background: var(--panel-2); }
.keypad button:active,
.keypad button.flash { transform: translateY(1px); border-color: var(--signal-dim); background: var(--panel-2); }
.actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 14px; }
.actions .full { grid-column: 1 / -1; }

/* ---- sms compose ---- */
.sms { margin-top: 20px; padding-top: 18px; border-top: 1px solid var(--line); display: grid; gap: 10px; }
.sms label { display: flex; justify-content: space-between; }
.sms textarea {
  width: 100%; resize: vertical; min-height: 62px;
  border: 1px solid var(--line); border-radius: var(--r);
  background: var(--ink-2); color: var(--text);
  font-family: inherit; font-size: 14px; line-height: 1.5; padding: 12px 14px;
}
.sms textarea::placeholder { color: var(--faint); }
.sms textarea:focus { border-color: var(--line-2); }

/* ---- responsive ---- */
@media (max-width: 760px) {
  .app { grid-template-columns: 1fr; }
  .rail { position: static; height: auto; flex-direction: row; align-items: center; flex-wrap: wrap; gap: 14px; }
  .rail .spacer { display: none; }
  .nav { flex-direction: row; }
  .main { padding: 22px 18px 50px; }
  .readouts { grid-template-columns: repeat(2, 1fr); }
}

@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .35; } }
@media (prefers-reduced-motion: reduce) { * { animation: none !important; } .btn, .keypad button { transition: none; } }