:root {
  --brand: #2b7fd4;
  --brand-600: #1e67b3;
  --brand-700: #185495;
  --brand-50: #eaf3fc;
  --ease-out: cubic-bezier(.2, .8, .2, 1);
  --ease-inout: cubic-bezier(.65, 0, .35, 1);
  --dur: 220ms;

  --bg-1: #0a1a2e;
  --bg-2: #050d1a;
  --surface: #ffffff;
  --border: #e3e8ef;
  --border-strong: #cdd5df;
  --text: #0c1726;
  --text-dim: #4a5568;
  --text-muted: #7b8794;
  --field-bg: #ffffff;
  --shadow-field: 0 0 0 4px rgba(43, 127, 212, 0.12);
  --danger: #dc2626;
  --danger-bg: #fef2f2;
  --ok: #16a34a;
  --warn: #d97706;
  --amb-text: #e7eef8;
  --amb-text-dim: #8aa0bc;
  --card-shadow: 0 1px 2px rgba(0,0,0,0.1), 0 24px 60px rgba(0,0,0,0.35), 0 8px 24px rgba(0,0,0,0.2);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body {
  font-family: 'Inter', system-ui, sans-serif;
  color: var(--text);
  background: linear-gradient(160deg, var(--bg-1) 0%, var(--bg-2) 100%);
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}
.mono { font-family: 'JetBrains Mono', monospace; }

.scene {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}
#bg-canvas {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  opacity: 0;
  animation: sceneFade 1200ms var(--ease-out) 200ms forwards;
}
@keyframes sceneFade { to { opacity: 0.75; } }

.amb-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 50% 50%, black 30%, transparent 85%);
  pointer-events: none;
  opacity: 0.7;
}
.amb-glow-a {
  position: absolute;
  top: -20%; left: -10%;
  width: 70%; height: 70%;
  background: radial-gradient(closest-side, rgba(43, 127, 212, 0.28), transparent);
  pointer-events: none;
  animation: floatA 18s ease-in-out infinite;
}
.amb-glow-b {
  position: absolute;
  bottom: -15%; right: -10%;
  width: 60%; height: 60%;
  background: radial-gradient(closest-side, rgba(43, 127, 212, 0.22), transparent);
  pointer-events: none;
  animation: floatB 22s ease-in-out infinite;
}
@keyframes floatA { 0%,100% { transform: translate(0,0); } 50% { transform: translate(4%, 6%); } }
@keyframes floatB { 0%,100% { transform: translate(0,0); } 50% { transform: translate(-5%, -4%); } }

.bg-phrase {
  position: absolute;
  right: 4%;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  pointer-events: none;
  text-align: right;
  max-width: 32%;
  opacity: 0;
  animation: phraseIn 1200ms var(--ease-out) 400ms forwards;
}
@keyframes phraseIn {
  from { opacity: 0; transform: translate(0, -48%); }
  to   { opacity: 0.55; transform: translate(0, -50%); }
}
.bg-phrase-eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: rgba(231, 238, 248, 0.55);
  margin-bottom: 24px;
}
.bg-phrase-text {
  font-size: clamp(26px, 3.4vw, 48px);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--amb-text);
}
.bg-phrase-text .hi {
  background: linear-gradient(100deg, #7cc4ff, #2b7fd4);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.metrics-layer {
  position: absolute; inset: 0;
  z-index: 3;
  pointer-events: none;
}
.metric-chip {
  position: absolute;
  background: rgba(14, 30, 52, 0.55);
  backdrop-filter: blur(10px) saturate(1.4);
  -webkit-backdrop-filter: blur(10px) saturate(1.4);
  border: 1px solid rgba(125, 180, 240, 0.16);
  border-radius: 10px;
  padding: 8px 12px;
  font-size: 11px;
  color: var(--amb-text-dim);
  white-space: nowrap;
  box-shadow: 0 8px 24px rgba(0,0,0,0.35);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out), box-shadow 300ms;
  display: flex; flex-direction: column; gap: 3px;
  min-width: 130px;
  animation: drift 20s ease-in-out infinite;
}
.metric-chip.visible { opacity: 0.72; transform: translateY(0); }
.metric-chip:hover { opacity: 1; }
.metric-chip .mc-label {
  font-size: 9.5px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--amb-text-dim);
  opacity: 0.9;
}
.metric-chip .mc-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 15px;
  font-weight: 600;
  color: var(--amb-text);
  font-variant-numeric: tabular-nums;
  display: flex; align-items: baseline; gap: 6px;
}
.metric-chip .mc-unit { font-size: 11px; color: var(--amb-text-dim); font-weight: 500; }
.metric-chip .mc-delta {
  font-size: 10px;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
}
.metric-chip .mc-delta.up { color: #34d399; }
.metric-chip .mc-delta.down { color: #f87171; }
.metric-chip.flash { box-shadow: 0 0 0 2px rgba(43,127,212,0.5), 0 8px 24px rgba(0,0,0,0.35); }
@keyframes drift {
  0%, 100% { translate: 0 0; }
  50%      { translate: 0 -8px; }
}

.stage {
  position: relative;
  z-index: 10;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 24px;
  overflow-y: auto;
}
.login-card {
  position: relative;
  width: 100%;
  max-width: 420px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 40px 40px 32px;
  box-shadow: var(--card-shadow);
  opacity: 1;
  animation: cardIn 700ms var(--ease-out) 150ms;
}
@keyframes cardIn {
  from { opacity: 0; transform: translateY(14px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0)    scale(1); }
}
.login-card.shake { animation: shake 440ms var(--ease-inout); }
@keyframes shake {
  10%, 90% { transform: translateX(-2px); }
  20%, 80% { transform: translateX(4px); }
  30%, 50%, 70% { transform: translateX(-6px); }
  40%, 60% { transform: translateX(6px); }
}

.brand { display: flex; align-items: center; justify-content: center; gap: 12px; margin-bottom: 28px; }
.brand-logo {
  height: 64px;
  width: auto;
  display: block;
}
.brand-mark {
  display: grid; place-items: center;
  width: 38px; height: 38px;
  border-radius: 10px;
  box-shadow: 0 6px 18px rgba(43, 127, 212, 0.28);
}
.brand-name {
  font-size: 15px; font-weight: 700; letter-spacing: -0.01em;
  color: var(--text);
}
.brand-name span { font-weight: 500; color: var(--text-dim); }
.brand-sub {
  font-size: 10.5px; color: var(--text-muted);
  margin-top: 1px; letter-spacing: 0.04em; text-transform: uppercase;
}

.headline h1 {
  font-size: 26px; font-weight: 700; letter-spacing: -0.02em;
  margin: 0 0 6px;
  color: var(--text);
}
.headline p { margin: 0 0 22px; color: var(--text-dim); font-size: 13.5px; }

.form { display: flex; flex-direction: column; gap: 0; }
.field { display: flex; flex-direction: column; gap: 6px; position: relative; }
.label-text {
  font-size: 12px; font-weight: 500;
  color: var(--text-dim);
  display: flex; justify-content: space-between; align-items: center;
}
.forgot {
  font-size: 12px; font-weight: 500;
  color: var(--brand); text-decoration: none;
  transition: color var(--dur);
}
.forgot:hover { color: var(--brand-700); text-decoration: underline; }

.input-row {
  position: relative;
  display: flex; align-items: center;
  background: var(--field-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: border-color var(--dur), box-shadow var(--dur);
  height: 44px;
  padding: 0 10px 0 38px;
}
.ficon {
  position: absolute; left: 13px; top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  transition: color var(--dur);
}
.field.is-focused .ficon { color: var(--brand); }
.field.is-focused .input-row {
  border-color: var(--brand);
  box-shadow: var(--shadow-field);
}
.field.has-error .input-row {
  border-color: var(--danger);
  box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.1);
}
.field.has-error .ficon { color: var(--danger); }

.input-row input {
  flex: 1; border: 0; outline: 0; background: transparent;
  font-family: inherit; font-size: 14px;
  color: var(--text); width: 100%; padding: 0;
}
.input-row input::placeholder { color: var(--text-muted); }

.eye {
  background: transparent; border: 0; cursor: pointer;
  color: var(--text-muted);
  padding: 6px; border-radius: 6px;
  display: grid; place-items: center;
  transition: color var(--dur), background var(--dur);
}
.eye:hover { color: var(--text); background: var(--border); }

.check-ok { color: var(--ok); animation: pop 260ms var(--ease-out); }
@keyframes pop {
  0% { transform: scale(0.4); opacity: 0; }
  60% { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(1); opacity: 1; }
}

.field-msg {
  font-size: 11.5px; min-height: 16px;
  color: var(--danger);
  padding-left: 2px; margin-bottom: 4px;
}
.caps { color: var(--warn); }

.remember-row {
  display: flex; justify-content: space-between; align-items: center;
  margin: 2px 0 4px;
}
.captcha-row {
  display: flex; justify-content: center;
  margin: 10px 0 4px;
}
.captcha-row .g-recaptcha { transform-origin: center; }
@media (max-width: 340px) {
  .captcha-row .g-recaptcha { transform: scale(0.88); }
}
.remember {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12.5px; color: var(--text-dim);
  cursor: pointer; user-select: none;
}
.remember input { accent-color: var(--brand); width: 15px; height: 15px; }

.error-banner {
  display: flex; align-items: center; gap: 10px;
  background: var(--danger-bg); color: var(--danger);
  padding: 0 14px; border-radius: 10px;
  font-size: 12.5px; font-weight: 500;
  max-height: 0; overflow: hidden; opacity: 0;
  transition: max-height var(--dur) var(--ease-inout), opacity var(--dur), padding var(--dur), margin var(--dur);
  margin: 0;
}
.error-banner.show {
  max-height: 80px; opacity: 1;
  padding: 10px 14px; margin: 4px 0 8px;
}

.submit {
  position: relative;
  height: 46px;
  border: 0; border-radius: 12px;
  background: var(--brand); color: white;
  font-family: inherit;
  font-size: 14px; font-weight: 600;
  cursor: pointer;
  margin-top: 12px;
  display: flex; align-items: center; justify-content: center;
  gap: 8px;
  transition: background var(--dur), transform var(--dur), box-shadow var(--dur);
  box-shadow: 0 1px 2px rgba(43, 127, 212, 0.2), 0 8px 24px rgba(43, 127, 212, 0.28);
  overflow: hidden;
}
.submit::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(120deg, transparent 20%, rgba(255,255,255,0.18) 50%, transparent 80%);
  transform: translateX(-100%);
  transition: transform 800ms var(--ease-out);
}
.submit:hover:not(:disabled) {
  background: var(--brand-600);
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(43, 127, 212, 0.2), 0 12px 30px rgba(43, 127, 212, 0.34);
}
.submit:hover:not(:disabled)::before { transform: translateX(100%); }
.submit:active:not(:disabled) { transform: translateY(0); }
.submit:disabled { cursor: default; }
.submit.loading { background: var(--brand-600); }
.submit .arrow { transition: transform var(--dur) var(--ease-out); display: grid; place-items: center; }
.submit:hover:not(:disabled) .arrow { transform: translateX(3px); }
.spinner svg { animation: spin 900ms linear infinite; display: block; }
@keyframes spin { to { transform: rotate(360deg); } }

.foot {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.foot-row {
  font-size: 11px;
  color: var(--text-dim);
  display: flex; align-items: center; gap: 8px;
  margin-top: 4px; flex-wrap: wrap;
}
.foot-row.muted { color: var(--text-muted); }
.foot-row a { color: var(--text-dim); text-decoration: none; }
.foot-row a:hover { color: var(--brand); }
.foot-sep { color: var(--text-muted); opacity: 0.5; }
.dot-ok {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--ok); display: inline-block;
  box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.18);
}

.pulse {
  width: 7px; height: 7px; border-radius: 50%;
  background: #34d399;
  box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.6);
  animation: pulse 1800ms ease-out infinite;
  display: inline-block;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.6); }
  100% { box-shadow: 0 0 0 8px rgba(52, 211, 153, 0); }
}

.amb-badge {
  position: fixed;
  top: 24px; left: 28px;
  z-index: 11;
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(14, 30, 52, 0.55);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(125, 180, 240, 0.16);
  border-radius: 999px;
  padding: 6px 14px 6px 10px;
  font-size: 11.5px; color: var(--amb-text-dim);
}
.amb-badge .mono { color: var(--amb-text); font-size: 11px; }

@media (max-width: 1180px) {
  .bg-phrase { display: none; }
}
@media (max-width: 560px) {
  .login-card { padding: 28px 24px 24px; }
  .metric-chip { display: none; }
}