:root {
  --ink: #0c0b0a; --ink-1: #141311; --ink-2: #1b1a17;
  --rule: #2e2b27; --rule-soft: #211f1c;
  --paper: #ebe6dc; --paper-dim: #8a857a; --paper-fade: #56534c;
  --amber: #e8a33c; --amber-soft: #b88336;
  --buy: #3fae6a; --sell: #d9533f;
  --mono: 'IBM Plex Mono', ui-monospace, Menlo, monospace;
  --sans: 'Inter', system-ui, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; background: var(--ink); color: var(--paper); font-family: var(--mono); }
body {
  display: grid;
  place-items: center;
  min-height: 100vh;
  background-image: repeating-linear-gradient(to bottom, transparent 0 2px, rgba(255,255,255,0.008) 2px 3px);
}

.auth-stack {
  width: min(420px, calc(100vw - 40px));
  display: flex; flex-direction: column;
  gap: 0;
}

/* Operator banner */
.auth-banner {
  display: grid;
  grid-template-columns: 48px 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 14px 18px;
  border: 1px solid var(--rule);
  border-bottom: none;
  background: var(--ink-1);
}
.mark {
  width: 48px; height: 48px;
  border: 1px solid var(--amber);
  display: grid; place-items: center;
  font-family: var(--sans);
  font-weight: 700; color: var(--amber);
  font-size: 18px;
  position: relative;
}
.mark::after {
  content: ''; position: absolute; inset: 4px;
  border: 1px solid var(--amber-soft); opacity: 0.4;
}
.banner-text { min-width: 0; }
.banner-text .name {
  font-family: var(--sans); font-weight: 600;
  font-size: 15px; letter-spacing: 0.01em;
}
.banner-text .sub {
  font-size: 10.5px;
  color: var(--paper-dim);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-top: 3px;
}
.live-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px;
  border: 1px solid var(--buy);
  color: var(--buy);
  font-family: var(--sans);
  font-size: 9.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 600;
}
.live-chip .dot {
  width: 5px; height: 5px; border-radius: 50%;
  background: currentColor;
  animation: pulse 1.6s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.25; } }

/* Card */
.card {
  background: var(--ink);
  border: 1px solid var(--rule);
  padding: 28px 26px 22px;
  position: relative;
}

.card-title {
  font-family: var(--sans);
  font-size: 11px;
  color: var(--paper-fade);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  margin-bottom: 20px;
  display: flex; align-items: center; gap: 10px;
}
.card-title::after {
  content: ''; flex: 1; height: 1px; background: var(--rule);
}

label {
  display: block;
  font-family: var(--sans);
  font-size: 10px;
  color: var(--paper-fade);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 500;
  margin-bottom: 7px;
  margin-top: 18px;
}
form label:first-of-type { margin-top: 0; }

input[type=text], input[type=password] {
  width: 100%;
  padding: 10px 12px;
  background: var(--ink-1);
  border: 1px solid var(--rule);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  outline: none;
  transition: border-color 0.15s;
}
input[type=text]:focus, input[type=password]:focus {
  border-color: var(--amber);
}

.btn {
  width: 100%;
  padding: 12px;
  margin-top: 26px;
  background: var(--amber);
  border: none;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.15s;
}
.btn:hover { background: #f1b24d; }
.btn:active { background: var(--amber-soft); }

.error {
  color: var(--sell);
  font-size: 11px;
  font-family: var(--sans);
  margin-top: 14px;
  padding: 8px 12px;
  background: rgba(217,83,63,0.08);
  border-left: 2px solid var(--sell);
  letter-spacing: 0.02em;
}

/* Meta footer */
.auth-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--rule);
  border-top: none;
  background: var(--ink-1);
}
.meta-cell {
  padding: 10px 14px;
  border-right: 1px solid var(--rule-soft);
}
.meta-cell:last-child { border-right: none; }
.meta-cell .k {
  display: block;
  font-family: var(--sans);
  font-size: 9px;
  color: var(--paper-fade);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.meta-cell .v {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--paper);
  letter-spacing: 0;
}
.meta-cell .v .dim { color: var(--paper-dim); }

.footnote {
  margin-top: 14px;
  text-align: center;
  font-family: var(--sans);
  color: var(--paper-fade);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}