.login-stage {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.login-box {
  width: 100%;
  max-width: 520px;
  background: linear-gradient(180deg, rgba(13,12,26,0.92), rgba(7,7,13,0.92));
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 38px 36px;
  text-align: center;
  box-shadow: 0 30px 100px rgba(34,211,238,0.18);
}

.logo-stack {
  font-size: 22px;
  margin-bottom: 6px;
}
.logo-stack small { letter-spacing: 6px; }

.login-box h1 {
  font-size: 26px;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin: 18px 0 24px;
  background: linear-gradient(90deg, var(--neon-cyan), var(--neon-magenta));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.login-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
@media (max-width: 480px) {
  .login-grid { grid-template-columns: repeat(2, 1fr); }
}

.login-tile {
  position: relative;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px 8px 14px;
  cursor: pointer;
  color: var(--ink);
  font-family: inherit;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease;
}
.login-tile:hover {
  transform: translateY(-3px);
  border-color: var(--tile-color);
  box-shadow: 0 12px 30px -12px var(--tile-color);
}
.login-tile .tile-photo {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background-size: cover;
  background-position: center;
  border: 3px solid var(--tile-color);
  box-shadow: 0 0 18px var(--tile-color);
  animation: bobIn 2s ease-in-out infinite;
}
@keyframes bobIn { 0%,100%{transform:translateY(0);} 50%{transform:translateY(-4px);} }
.login-tile .label {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--ink-dim);
}

.pin-photo {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-size: cover;
  background-position: center;
  border: 3px solid var(--avatar-color);
  box-shadow: 0 0 18px var(--avatar-color);
  display: inline-block;
}

.pin-form {
  margin-top: 22px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: center;
}

.pin-current {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 12px 22px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,0.04);
}
.pin-current span:last-child {
  font-size: 16px;
  letter-spacing: 3px;
  text-transform: uppercase;
}

#pinInput {
  background: rgba(0,0,0,0.5);
  border: 1px solid var(--line);
  color: var(--ink);
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 32px;
  letter-spacing: 18px;
  text-align: center;
  padding: 14px 22px;
  border-radius: 12px;
  width: 220px;
}
#pinInput:focus { outline: none; border-color: var(--neon-cyan); box-shadow: 0 0 22px rgba(34,211,238,0.4); }

.pin-actions {
  display: flex;
  gap: 10px;
}
.btn-arcade.ghost {
  background: transparent;
  color: var(--ink-dim);
}
.btn-arcade.ghost:hover { color: var(--ink); border-color: var(--ink-dim); box-shadow: none; }

.pin-error {
  color: #f87171;
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  min-height: 18px;
  animation: shake .25s linear;
}
@keyframes shake {
  0%,100%{transform:translateX(0);}
  25%{transform:translateX(-6px);}
  75%{transform:translateX(6px);}
}