.auth-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  padding: 20px;
}

.auth-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 36px 40px;
  width: 420px;
  max-width: 100%;
}

.auth-card h1 {
  font-size: 20px;
  margin: 0 0 6px 0;
  letter-spacing: -0.3px;
}

.auth-card .muted { margin: 0 0 20px 0; }

.auth-erro {
  background: var(--danger-soft);
  color: var(--danger);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 14px;
}

.auth-sucesso {
  background: var(--success-soft);
  color: var(--success);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 14px;
}

.auth-dropzone {
  border: 1.5px dashed var(--border-strong);
  border-radius: var(--radius);
  padding: 30px;
  text-align: center;
  color: var(--text-muted);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  margin-bottom: 16px;
}
.auth-dropzone.dragover,
.auth-dropzone:hover { border-color: var(--accent); background: var(--accent-soft); }

.recuperacao-aviso {
  background: var(--warning-soft);
  border: 1px solid var(--warning);
  border-radius: var(--radius);
  padding: 16px 18px;
  font-size: 13px;
  margin-bottom: 18px;
}