:root {
  --bg: #0f1419;
  --bg-elevated: #1a222c;
  --border: rgba(255, 255, 255, 0.1);
  --text: #e8edf4;
  --text-muted: #8b9cb3;
  --accent: #3d9cf0;
  --danger: #f07178;
  --radius: 12px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100dvh;
  font-family: "DM Sans", system-ui, sans-serif;
  font-size: 1rem;
  color: var(--text);
  background: var(--bg);
  background-image:
    radial-gradient(ellipse 100% 80% at 50% -30%, rgba(61, 156, 240, 0.14), transparent),
    radial-gradient(ellipse 80% 50% at 100% 100%, rgba(91, 211, 154, 0.06), transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.login-card {
  width: 100%;
  max-width: 22rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(1.25rem, 4vw, 1.75rem);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}

.login-title {
  margin: 0 0 0.25rem;
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.login-sub {
  margin: 0 0 1.25rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.login-sub--tight {
  margin-bottom: 0.75rem;
}

.field {
  margin-bottom: 1rem;
}

.field label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  margin-bottom: 0.35rem;
  color: var(--text-muted);
}

.field input {
  width: 100%;
  padding: 0.55rem 0.65rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font: inherit;
}

.field input:focus {
  outline: 2px solid rgba(61, 156, 240, 0.45);
  outline-offset: 1px;
}

.btn {
  width: 100%;
  margin-top: 0.25rem;
  padding: 0.6rem 1rem;
  border: none;
  border-radius: 8px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  background: var(--accent);
  color: #0a0e12;
}

.btn:hover {
  filter: brightness(1.06);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  margin-top: 0.5rem;
}

.error {
  margin: 0 0 0.75rem;
  font-size: 0.8125rem;
  color: var(--danger);
  min-height: 1.25em;
}

.hidden {
  display: none !important;
}

.step-2fa {
  margin-top: 0.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}