:root {
  --navy: #0D1F3C;
  --navy-deep: #0A1730;
  --navy-mid: #142A56;
  --green: #7AB73C;
  --green-dark: #5E9A2C;
  --red: #C4453D;
  --red-bg: #FBEAE9;
  --ink: #16213A;
  --muted: #5B6478;
  --border: #E4E7ED;
  --white: #FFFFFF;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    radial-gradient(900px 500px at 85% -10%, rgba(122,183,60,0.14), transparent 60%),
    linear-gradient(160deg, var(--navy) 0%, var(--navy-mid) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-card {
  width: 100%;
  max-width: 400px;
  background: var(--white);
  border-radius: 18px;
  padding: 40px 36px 34px;
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.45);
}

.login-card__brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 26px;
}
.login-card__logo {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  margin-bottom: 14px;
}
.login-card__brand h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.3rem;
  color: var(--navy);
  margin-bottom: 4px;
}
.login-card__brand p {
  font-size: 0.88rem;
  color: var(--muted);
}

.field {
  margin-bottom: 16px;
}
.field label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 6px;
}
.field input {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 11px 14px;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  outline: none;
  transition: border-color .15s ease;
  background: var(--white);
  color: var(--ink);
}
.field input:focus {
  border-color: var(--navy);
}

.workspace-hint {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
  margin-top: 6px;
}

.login-btn {
  width: 100%;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--navy-deep);
  background: var(--green);
  border: none;
  border-radius: 10px;
  padding: 13px;
  cursor: pointer;
  margin-top: 6px;
  transition: background .15s ease, transform .15s ease;
}
.login-btn:hover { background: var(--green-dark); transform: translateY(-1px); }
.login-btn:disabled { opacity: 0.7; cursor: default; transform: none; }

.error-banner {
  display: none;
  align-items: center;
  gap: 10px;
  background: var(--red-bg);
  color: var(--red);
  font-size: 0.85rem;
  font-weight: 500;
  border-radius: 10px;
  padding: 11px 14px;
  margin-bottom: 18px;
}
.error-banner.show { display: flex; }
.error-banner svg { flex-shrink: 0; }

.login-card.shake {
  animation: shake 0.4s ease;
}
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(5px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(3px); }
}
@media (prefers-reduced-motion: reduce) {
  .login-card.shake { animation: none; }
}

.login-footer {
  text-align: center;
  margin-top: 20px;
  font-size: 0.78rem;
  color: var(--muted);
}