.auth-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  padding: 2rem;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  padding: 3rem;
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.auth-header { margin-bottom: 2rem; text-align: center; }
.auth-logo { width: auto; height: 48px; margin-bottom: 1rem; }
.auth-title { margin: 0 0 0.5rem; color: #0f172a; font-size: 1.75rem; font-weight: 700; }
.auth-subtitle { margin: 0; color: #64748b; font-size: 0.95rem; }
.auth-form { display: flex; flex-direction: column; gap: 1.25rem; }
.auth-field { display: flex; flex-direction: column; gap: 0.5rem; }
.auth-label { color: #334155; font-size: 0.9rem; font-weight: 600; }

.auth-input {
  padding: 0.75rem 1rem;
  border: 2px solid #e2e8f0;
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.auth-input:focus {
  outline: none;
  border-color: #38bdf8;
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.1);
}

.auth-button {
  margin-top: 0.5rem;
  padding: 0.875rem 1.5rem;
  border: 0;
  border-radius: 8px;
  background: #0f172a;
  color: #fff;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
}

.auth-button:hover { background: #1e293b; }
.auth-button:disabled { opacity: 0.55; cursor: not-allowed; }
.auth-links { margin-top: 1rem; text-align: center; }
.auth-links a { color: #0284c7; font-size: 0.95rem; text-decoration: none; }
.auth-links a:hover { text-decoration: underline; }

.auth-alert {
  margin-bottom: 1.25rem;
  padding: 0.75rem 1rem;
  border: 1px solid;
  border-radius: 8px;
  font-size: 0.9rem;
}

.auth-alert--error { border-color: #fecaca; background: #fee2e2; color: #991b1b; }
.auth-alert--success { border-color: #bbf7d0; background: #dcfce7; color: #166534; }

@media (max-width: 520px) {
  .auth-container { padding: 1rem; }
  .auth-card { padding: 2rem 1.5rem; }
}