/* ============================================================================
   SPREAD CONSOLE — industrial trading-terminal aesthetic.
   Dark, monospace-forward, amber signal lamps, ledger tables, live heartbeat.
   Self-contained: system monospace stack only (strict CSP, no external fonts).
   ========================================================================== */
:root {
  --mono: "JetBrains Mono", "IBM Plex Mono", "DejaVu Sans Mono", ui-monospace, Menlo, Consolas, monospace;

  --bg:        #0b0d0e;
  --bg-grain:  #101314;
  --panel:     #14181a;
  --panel-2:   #191e21;
  --line:      #262d31;
  --line-hot:  #384247;

  --ink:       #d7dee1;
  --ink-dim:   #7f8b90;
  --ink-faint: #4d585d;

  --amber:     #f5a623;   /* primary signal lamp */
  --amber-dim: #7a5410;
  --profit:    #35d07f;
  --loss:      #ff5c5c;
  --cyan:      #35c9d0;
  --violet:    #9a86ff;

  --radius: 3px;
  --gap: 14px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* atmospheric background: faint grid + grain + a single amber glow off-axis */
body::before {
  content: "";
  position: fixed; inset: 0; z-index: -2;
  background:
    radial-gradient(1100px 700px at 82% -10%, rgba(245,166,35,.07), transparent 60%),
    linear-gradient(var(--bg-grain), var(--bg));
}
body::after {
  content: "";
  position: fixed; inset: 0; z-index: -1; opacity: .35; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px);
  background-size: 34px 34px;
}

a { color: var(--cyan); text-decoration: none; }

/* --- shell ------------------------------------------------------------- */
.wrap { max-width: 1320px; margin: 0 auto; padding: 20px clamp(14px, 3vw, 34px) 60px; }

.topbar {
  display: flex; align-items: center; gap: 18px;
  padding: 12px 0 18px; border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
}
.brand { display: flex; align-items: baseline; gap: 12px; }
.brand .mark {
  font-weight: 700; letter-spacing: .34em; text-transform: uppercase;
  font-size: 15px; color: var(--ink);
}
.brand .mark b { color: var(--amber); }
.brand .ver { color: var(--ink-faint); font-size: 11px; letter-spacing: .2em; }

.topbar .spacer { flex: 1; }
.clock { color: var(--ink-dim); font-size: 12px; letter-spacing: .12em; }

.pill {
  border: 1px solid var(--line-hot); border-radius: 999px;
  padding: 4px 12px; font-size: 11px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--ink-dim);
}
.pill.mode-live   { color: var(--loss);   border-color: var(--loss); }
.pill.mode-shadow { color: var(--amber);  border-color: var(--amber-dim); }
.pill.mode-paper  { color: var(--cyan);   border-color: #1d4a4d; }
.pill.mode-idle   { color: var(--ink-faint); }

.btn {
  font-family: var(--mono); font-size: 12px; letter-spacing: .14em; text-transform: uppercase;
  background: var(--panel-2); color: var(--ink); border: 1px solid var(--line-hot);
  padding: 8px 14px; border-radius: var(--radius); cursor: pointer;
  transition: border-color .15s, background .15s, color .15s;
}
.btn:hover { border-color: var(--amber-dim); color: #fff; }
.btn.ghost { background: transparent; }
.btn.danger:hover { border-color: var(--loss); color: var(--loss); }
.btn:disabled { opacity: .4; cursor: not-allowed; }

/* --- heartbeat --------------------------------------------------------- */
.hb { display: inline-flex; align-items: center; gap: 8px; color: var(--ink-dim); font-size: 12px; letter-spacing: .12em; }
.hb .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--ink-faint); }
.hb.on .dot { background: var(--profit); box-shadow: 0 0 0 0 rgba(53,208,127,.55); animation: pulse 1.6s infinite; }
.hb.halt .dot { background: var(--loss); }
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(53,208,127,.5); }
  70%  { box-shadow: 0 0 0 8px rgba(53,208,127,0); }
  100% { box-shadow: 0 0 0 0 rgba(53,208,127,0); }
}

/* --- control strip ----------------------------------------------------- */
.control {
  display: flex; align-items: center; gap: var(--gap); flex-wrap: wrap;
  margin: 22px 0; padding: 16px; background: var(--panel);
  border: 1px solid var(--line); border-radius: var(--radius);
  position: relative; overflow: hidden;
}
.control::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--amber);
  opacity: .8;
}
.seg { display: inline-flex; border: 1px solid var(--line-hot); border-radius: var(--radius); overflow: hidden; }
.seg button {
  font-family: var(--mono); background: transparent; color: var(--ink-dim); border: 0;
  padding: 9px 16px; font-size: 12px; letter-spacing: .14em; text-transform: uppercase; cursor: pointer;
  border-right: 1px solid var(--line-hot);
}
.seg button:last-child { border-right: 0; }
.seg button[aria-pressed="true"] { background: var(--panel-2); color: var(--ink); }
.seg button[data-mode="live"][aria-pressed="true"] { color: var(--loss); }
.control .grow { flex: 1; }
.control .note { color: var(--ink-faint); font-size: 11px; letter-spacing: .1em; }

/* --- KPI row ----------------------------------------------------------- */
.kpis { display: grid; grid-template-columns: repeat(5, 1fr); gap: var(--gap); margin-bottom: var(--gap); }
.kpi {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px 16px; position: relative;
}
.kpi .label { color: var(--ink-faint); font-size: 10px; letter-spacing: .22em; text-transform: uppercase; }
.kpi .val { font-size: 26px; margin-top: 6px; letter-spacing: -.01em; font-variant-numeric: tabular-nums; }
.kpi .sub { color: var(--ink-dim); font-size: 11px; margin-top: 2px; }
.kpi.pnl .val.pos { color: var(--profit); }
.kpi.pnl .val.neg { color: var(--loss); }

/* --- panels ------------------------------------------------------------ */
.grid { display: grid; grid-template-columns: 1.55fr 1fr; gap: var(--gap); align-items: start; }
.stack { display: grid; gap: var(--gap); }
.panel {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
}
.panel > h2 {
  margin: 0; padding: 12px 16px; font-size: 11px; letter-spacing: .24em; text-transform: uppercase;
  color: var(--ink-dim); border-bottom: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
}
.panel > h2 .count { color: var(--ink-faint); font-size: 10px; letter-spacing: .12em; }
.scroll { overflow-x: auto; }

table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
th {
  text-align: left; color: var(--ink-faint); font-weight: 500; font-size: 10px;
  letter-spacing: .16em; text-transform: uppercase; padding: 9px 12px;
  border-bottom: 1px solid var(--line); white-space: nowrap;
}
td { padding: 9px 12px; border-bottom: 1px solid rgba(38,45,49,.5); white-space: nowrap; font-variant-numeric: tabular-nums; }
tr:last-child td { border-bottom: 0; }
tbody tr { animation: rowin .3s ease both; }
@keyframes rowin { from { opacity: 0; transform: translateY(-3px); } to { opacity: 1; transform: none; } }

.tag { font-size: 10px; letter-spacing: .1em; padding: 2px 7px; border-radius: 2px; border: 1px solid var(--line-hot); color: var(--ink-dim); text-transform: uppercase; }
.tag.exec   { color: var(--amber);  border-color: var(--amber-dim); }
.tag.shadow { color: var(--cyan);   border-color: #1d4a4d; }
.tag.veto   { color: var(--ink-faint); }
.tag.ok     { color: var(--profit); border-color: #1d5a3a; }
.tag.bad    { color: var(--loss);   border-color: #5a1d1d; }
.num.pos { color: var(--profit); } .num.neg { color: var(--loss); }
.dim { color: var(--ink-dim); } .faint { color: var(--ink-faint); }
.right { text-align: right; }

.empty { padding: 34px 16px; text-align: center; color: var(--ink-faint); font-size: 12px; letter-spacing: .1em; }

/* watch list + screen panel */
.chips { display: flex; flex-wrap: wrap; gap: 7px; padding: 14px 16px; }
.chip { border: 1px solid var(--line-hot); border-radius: 2px; padding: 5px 10px; font-size: 12px; color: var(--ink); letter-spacing: .06em; }
.formrow { display: flex; gap: 8px; padding: 0 16px 14px; flex-wrap: wrap; }
input[type=text], input[type=password], input[type=number] {
  font-family: var(--mono); background: var(--bg); color: var(--ink);
  border: 1px solid var(--line-hot); border-radius: var(--radius); padding: 9px 11px; font-size: 13px; flex: 1; min-width: 120px;
}
input:focus { outline: none; border-color: var(--amber-dim); }

.bar { height: 4px; background: var(--panel-2); border-radius: 2px; overflow: hidden; margin-top: 8px; }
.bar > span { display: block; height: 100%; background: linear-gradient(90deg, var(--amber-dim), var(--amber)); }

.foot { margin-top: 26px; color: var(--ink-faint); font-size: 11px; letter-spacing: .08em; line-height: 1.7; border-top: 1px solid var(--line); padding-top: 16px; }
.foot b { color: var(--ink-dim); }

/* staggered load reveal */
.reveal { animation: up .5s cubic-bezier(.2,.7,.2,1) both; }
.reveal.d1 { animation-delay: .05s; } .reveal.d2 { animation-delay: .12s; }
.reveal.d3 { animation-delay: .19s; } .reveal.d4 { animation-delay: .26s; }
@keyframes up { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

/* toast */
#toast { position: fixed; right: 18px; bottom: 18px; display: grid; gap: 8px; z-index: 50; }
.toast { background: var(--panel-2); border: 1px solid var(--line-hot); border-left: 3px solid var(--amber);
  padding: 10px 14px; border-radius: var(--radius); font-size: 12px; max-width: 340px; animation: up .25s ease both; }
.toast.err { border-left-color: var(--loss); }

/* --- login ------------------------------------------------------------- */
.login-shell { min-height: 100vh; display: grid; place-items: center; padding: 20px; }
.login-card { width: 100%; max-width: 380px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; }
.login-card .mark { font-weight: 700; letter-spacing: .34em; text-transform: uppercase; color: var(--ink); }
.login-card .mark b { color: var(--amber); }
.login-card p { color: var(--ink-faint); font-size: 12px; letter-spacing: .08em; }
.login-card form { display: grid; gap: 12px; margin-top: 18px; }
.login-card .err { color: var(--loss); font-size: 12px; }

/* --- responsive -------------------------------------------------------- */
@media (max-width: 1000px) {
  .grid { grid-template-columns: 1fr; }
  .kpis { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .kpis { grid-template-columns: 1fr; }
  .control { flex-direction: column; align-items: stretch; }
  .seg { width: 100%; } .seg button { flex: 1; }
  .topbar { gap: 10px; }
}